JP7042949B2 - Receiving system, radio frequency module and radio device - Google Patents

Description

The present disclosure generally relates to a radio communication system having one or more diversity receiving antennas.

Mutual reference to related applications This application is a partial continuation of US Application Nos. 14 / 727,739 entitled "Diversity Frontend System with Variable Gain Amplifier" filed June 1, 2015. , Which claims the priority and filing date benefits of US Provisional Application No. 62 / 073,043, entitled "Diversity Receiver Frontend System" filed October 31, 2014. These disclosures are expressly incorporated herein by reference in their entirety.

This application is a partial continuation of US Application No. 14 / 734,759 entitled "Diversity Receiver Frontend System with Phase Shift Components" filed June 9, 2015. , US Provisional Application No. 62 / 073,043, entitled "Diversity Receiver Frontend System" filed October 31, 2014, "LNA Post-Phase Phase Matching" filed October 31, 2014. U.S. provisional application No. 62 / 073,040 entitled "Carrier Aggregation Used" and U.S. Claim the priorities and benefits of the filing date of provisional application Nos. 62/073 and 039, respectively. These disclosures are expressly incorporated herein by reference in their entirety.

This application is a partial continuation of US Application No. 14 / 734,775 entitled "Diversity Receiver Frontend System with Impedance Matching Components" filed June 9, 2015. , US Provisional Application No. 62 / 073,043, entitled "Diversity Receiver Frontend System" filed October 31, 2014, "LNA Post-Phase Phase Matching" filed October 31, 2014. US provisional application No. 62 / 073,040 entitled "Carrier Aggregation Used" and US named "LNA Front Out-of-Band Impedance Matching for Carrier Aggregation Operation" filed October 31, 2014. Claim the priorities and benefits of the filing date of provisional application Nos. 62/073 and 039, respectively. These disclosures are expressly incorporated herein by reference in their entirety.

This application is a partial continuation of US Application No. 14 / 735,482 entitled "Diversity Receiver Frontend System with Amplifier Post-Filter" filed June 10, 2015. , US Provisional Application No. 62 / 073,043, entitled "Diversity Receiver Frontend System" filed October 31, 2014, and "Carrier Aggregation Support" filed November 10, 2014. LNA Claims the Priority and Filing Date Benefits of U.S. Provisional Application Nos. 62 / 077,894, respectively, entitled "Diversity Receiver Architecture with Front and Rear Filters". These disclosures are expressly incorporated herein by reference in their entirety.

This application is a partial continuation of US Application No. 14 / 734,746 entitled "Diversity Receiver Frontend System with Switching Network" filed June 9, 2015. US Provisional Application No. 62 / 073,043, entitled "Diversity Receiver Frontend System" filed October 31, 2014, and "For Carrier Aggregation" filed October 31, 2014. Claims the priorities and filing date benefits of each of the US Provisional Applications 62 / 073,041 entitled "Applicable Multiple Band LNA". These disclosures are expressly incorporated herein by reference in their entirety.

This application is a partial continuation of US Application No. 14 / 836,575 entitled "Diversity Receiver Frontend System with Flexible Routing" filed on August 26, 2015. , US Provisional Application No. 62 / 073,043, entitled "Diversity Receiver Frontend System" filed October 31, 2014, and "Flexible Multiplex Band Multiplexing" filed October 31, 2014. Claims the priorities and filing date benefits of each of US Provisional Applications 62 / 073,042 entitled "Antenna Receiver Module". These disclosures are expressly incorporated herein by reference in their entirety.

In wireless communication applications, size, cost and performance are examples of factors that can be important for a given product. For example, in order to improve performance, wireless components such as diversity receiving antennas and related circuits have become common.

In many radio frequency (RF) applications, the diversity receive antenna is located physically far from the primary antenna. If both antennas are used at the same time, the transmitter / receiver can process the signals from both antennas to increase the data throughput.

Korean Published Patent No. 10-2004-1000156 Gazette Korean Publication No. 10-2005-0023641 U.S. Patent Application Publication No. 2010-0202324 U.S. Patent Application Publication No. 2010-0118923

According to some embodiments, the present disclosure relates to a radio frequency (RF) receiving system, which selectively comprises one or more of a plurality of paths between an input of the receiving system and an output of the receiving system. Includes controls configured to be active. The RF receiving system further includes a plurality of amplifiers, each of which is configured along a corresponding one of the plurality of paths to amplify the signal received by the amplifier. The RF receiving system further includes a first feature, a second feature, a third feature, a fourth feature, a fifth feature, and a sixth feature implemented for the RF reception system. Including the part.

The first feature section includes a plurality of band-passing filters, and each one of the plurality of band-passing filters is provided along the corresponding one of the plurality of paths, and each signal received by the band-passing filter is received. It is configured to filter into the frequency band. At least some of the plurality of amplifiers are implemented as multiple variable gain amplifiers (VGAs), and each one of the plurality of VGAs has a corresponding signal and a gain controlled by the amplifier control signal received from the controller. It is configured to be used and amplified.

The second feature section includes a plurality of phase shift components, and each one of the plurality of phase shift components is provided along the corresponding one of the plurality of paths, and the signal passing through the phase shift component is phased. It is configured to shift.

The third feature section includes a plurality of impedance matching components, each of which is provided along the corresponding one of the plurality of paths and is out of the band of the plurality of paths. It is configured to reduce at least one of the noise figure or out-of-band gain.

The fourth feature section includes a plurality of amplifier post-band band pass filters, and each one of the plurality of amplifier post-band band pass filters becomes a corresponding one of a plurality of paths in the corresponding output of the plurality of amplifiers. It is provided along the line and is configured to filter the signal into each frequency band.

A fifth feature includes a switching network having one or more unipolar / single throw switches, each of which couples two of a plurality of paths. The switching network is configured so that the controller controls based on the band selection signal.

A sixth feature is a plurality of input multiplexers that receive one or more RF signals at one or more input multiplexer inputs and propagate each of the one or more RF signals along one or more of a plurality of paths. Receives an input multiplexer configured to output to one or more of the outputs and one or more amplified RF signals propagating along one or more of the plurality of paths at one or more corresponding output multiplexer inputs. Each of the one or more amplified RF signals includes an output multiplexer configured to output to a selected one of the plurality of output multiplexer outputs.

In some embodiments, the RF receiving system may include a first feature and a second feature.

In some embodiments, the RF receiving system may include a first feature and a third feature.

In some embodiments, the RF receiving system may include a first feature and a fourth feature.

In some embodiments, the RF receiving system may include a second feature and a third feature.

In some embodiments, the RF receiving system may include a second feature and a fourth feature.

In some embodiments, the RF receiving system may include a third feature and a fourth feature.

In some embodiments, the RF receiving system may include a first feature, a second feature and a third feature.

In some embodiments, the RF receiving system may include a first feature, a second feature and a fourth feature.

In some embodiments, the RF receiving system may include a first feature, a third feature and a fourth feature.

In some embodiments, the RF receiving system may include a second feature, a third feature and a fourth feature.

In some embodiments, the RF receiving system may include a first feature, a second feature, a third feature and a fourth feature.

In some embodiments, the RF receiving system may include a first feature, a second feature and a fifth feature.

In some embodiments, the RF receiving system may include a first feature, a third feature and a fifth feature.

In some embodiments, the RF receiving system may include a first feature, a fourth feature and a fifth feature.

In some embodiments, the RF receiving system may include a second feature, a third feature and a fifth feature.

In some embodiments, the RF receiving system may include a second feature, a fourth feature and a fifth feature.

In some embodiments, the RF receiving system may include a third feature, a fourth feature and a fifth feature.

In some embodiments, the RF receiving system may include a first feature, a second feature, a third feature and a fifth feature.

In some embodiments, the RF receiving system may include a first feature, a second feature, a fourth feature and a fifth feature.

In some embodiments, the RF receiving system may include a first feature, a third feature, a fourth feature and a fifth feature.

In some embodiments, the RF receiving system may include a second feature, a third feature, a fourth feature and a fifth feature.

In some embodiments, the RF receiving system may include a first feature, a second feature, a third feature, a fourth feature and a fifth feature.

In some embodiments, the RF receiving system may include a first feature, a second feature and a sixth feature.

In some embodiments, the RF receiving system may include a first feature, a third feature and a sixth feature.

In some embodiments, the RF receiving system may include a first feature, a fourth feature and a sixth feature.

In some embodiments, the RF receiving system may include a second feature, a third feature and a sixth feature.

In some embodiments, the RF receiving system may include a second feature, a fourth feature and a sixth feature.

In some embodiments, the RF receiving system may include a third feature, a fourth feature and a sixth feature.

In some embodiments, the RF receiving system may include a first feature, a second feature, a third feature and a sixth feature.

In some embodiments, the RF receiving system may include a first feature, a second feature, a fourth feature and a sixth feature.

In some embodiments, the RF receiving system may include a first feature, a third feature, a fourth feature and a sixth feature.

In some embodiments, the RF receiving system may include a second feature, a third feature, a fourth feature and a sixth feature.

In some embodiments, the RF receiving system may include a first feature, a second feature, a third feature, a fourth feature and a sixth feature.

In some embodiments, the RF receiving system may include a first feature, a second feature, a fifth feature and a sixth feature.

In some embodiments, the RF receiving system may include a first feature, a third feature, a fifth feature and a sixth feature.

In some embodiments, the RF receiving system may include a first feature, a fourth feature, a fifth feature and a sixth feature.

In some embodiments, the RF receiving system may include a second feature, a third feature, a fifth feature and a sixth feature.

In some embodiments, the RF receiving system may include a second feature, a fourth feature, a fifth feature and a sixth feature.

In some embodiments, the RF receiving system may include a third feature, a fourth feature, a fifth feature and a sixth feature.

In some embodiments, the RF receiving system may include a first feature, a second feature, a third feature, a fifth feature and a sixth feature.

In some embodiments, the RF receiving system may include a first feature, a second feature, a fourth feature, a fifth feature and a sixth feature.

In some embodiments, the RF receiving system may include a first feature, a third feature, a fourth feature, a fifth feature and a sixth feature.

In some embodiments, the RF receiving system may include a second feature, a third feature, a fourth feature, a fifth feature and a sixth feature.

In some embodiments, the RF receiving system may include a first feature, a second feature, a third feature, a fourth feature, a fifth feature and a sixth feature. ..

In some embodiments, the RF receiving system may include a first feature and a fifth feature.

In some embodiments, the RF receiving system may include a second feature and a fifth feature.

In some embodiments, the RF receiving system may include a third feature and a fifth feature.

In some embodiments, the RF receiving system may include a fourth feature and a fifth feature.

In some embodiments, the RF receiving system may include a first feature and a sixth feature.

In some embodiments, the RF receiving system may include a second feature and a sixth feature.

In some embodiments, the RF receiving system may include a third feature and a sixth feature.

In some embodiments, the RF receiving system may include a fourth feature and a sixth feature.

In some embodiments, the RF receiving system may include a fifth feature and a sixth feature.

In some embodiments, the RF receiving system may include a first feature, a fifth feature and a sixth feature.

In some embodiments, the RF receiving system may include a second feature, a fifth feature and a sixth feature.

In some embodiments, the RF receiving system may include a third feature, a fifth feature and a sixth feature.

In some embodiments, the RF receiving system may include a fourth feature, a fifth feature and a sixth feature.

In a predetermined number of implementations, the present disclosure relates to a radio frequency (RF) module comprising a packaging board configured to accept a plurality of components and a receiving system mounted on the packaging board. The receiving system includes a controller configured to selectively activate one or more of the paths between the input of the receiving system and the output of the receiving system, and a plurality of amplifiers. Each one of the plurality of amplifiers is provided along the corresponding one of the plurality of paths and is configured to amplify the signal received by the amplifier. The receiving system further comprises a first feature, a second feature, a third feature, a fourth feature, a fifth feature and a sixth feature implemented for the RF reception system. Includes 2 or more.

The first feature section includes a plurality of band-passing filters, and each one of the plurality of band-passing filters is provided along the corresponding one of the plurality of paths, and each signal received by the band-passing filter is received. It is configured to filter into the frequency band. At least some of the amplifiers are implemented as multiple variable gain amplifiers (VGAs), each of which is a gain controlled by an amplifier control signal received from the controller for the corresponding signal. Is configured to be amplified by.

The second feature section includes a plurality of phase shift components, and each one of the plurality of phase shift components is provided along the corresponding one of the plurality of paths, and the signal passing through the phase shift component is phased. It is configured to shift.

The third feature section includes a plurality of impedance matching components, each of which is provided along the corresponding one of the plurality of paths and is out of the band of the plurality of paths. It is configured to reduce at least one of the noise figure or out-of-band gain.

The fourth feature section includes a plurality of amplifier post-band band pass filters, and each one of the plurality of amplifier post-band band pass filters becomes a corresponding one of a plurality of paths in the corresponding output of the plurality of amplifiers. It is provided along the line and is configured to filter the signal into each frequency band.

A fifth feature includes a switching network having one or more unipolar / single throw switches, each of which couples two of a plurality of paths. The switching network is configured so that the controller controls based on the band selection signal.

A sixth feature is a plurality of input multiplexers that receive one or more RF signals at one or more input multiplexer inputs and propagate each of the one or more RF signals along one or more of a plurality of paths. Receives an input multiplexer configured to output to one or more of the outputs and one or more amplified RF signals propagating along one or more of the plurality of paths at one or more corresponding output multiplexer inputs. Each of the one or more amplified RF signals includes an output multiplexer configured to output to a selected one of the plurality of output multiplexer outputs.

In some embodiments, the RF module may include a diversity receiver front-end module (FEM).

In some teachings, the present disclosure includes a first antenna configured to receive one or more radio frequency (RF) signals and a first front-end module (FEM) communicating with the first antenna. Regarding wireless devices. The first FEM includes a packaging substrate configured to accept a plurality of components. The first FEM further includes a receiving system mounted on a packaging board. The receiving system includes a controller configured to selectively activate one or more of the paths between the input of the receiving system and the output of the receiving system, and a plurality of amplifiers. Each one of the plurality of amplifiers is provided along the corresponding one of the plurality of paths and is configured to amplify the signal received by the amplifier. The receiving system further comprises a first feature, a second feature, a third feature, a fourth feature, a fifth feature and a sixth feature implemented for the RF reception system. Includes 2 or more. The radio device further includes a transmitter / receiver configured to receive a processed version of one or more RF signals from the receiving system and generate data bits based on the processed version of the one or more RF signals.

The first feature section includes a plurality of band-passing filters, and each one of the plurality of band-passing filters is provided along the corresponding one of the plurality of paths, and each signal received by the band-passing filter is received. It is configured to filter into the frequency band. At least some of the amplifiers are implemented as multiple variable gain amplifiers (VGAs), each of which is a gain controlled by an amplifier control signal received from the controller for the corresponding signal. Is configured to be amplified by.

The second feature section includes a plurality of phase shift components, and each one of the plurality of phase shift components is provided along the corresponding one of the plurality of paths, and the signal passing through the phase shift component is phased. It is configured to shift.

The third feature section includes a plurality of impedance matching components, each of which is provided along the corresponding one of the plurality of paths and is out of the band of the plurality of paths. It is configured to reduce at least one of the noise figure or out-of-band gain.

The fourth feature section includes a plurality of amplifier post-band band pass filters, and each one of the plurality of amplifier post-band band pass filters becomes a corresponding one of a plurality of paths in the corresponding output of the plurality of amplifiers. It is provided along the line and is configured to filter the signal into each frequency band.

A fifth feature includes a switching network having one or more unipolar / single throw switches, each of which couples two of a plurality of paths. The switching network is configured so that the controller controls based on the band selection signal.

A sixth feature is a plurality of input multiplexers that receive one or more RF signals at one or more input multiplexer inputs and propagate each of the one or more RF signals along one or more of a plurality of paths. Receives an input multiplexer configured to output to one or more of the outputs and one or more amplified RF signals propagating along one or more of the plurality of paths at one or more corresponding output multiplexer inputs. Each of the one or more amplified RF signals includes an output multiplexer configured to output to a selected one of the plurality of output multiplexer outputs.

In some embodiments, the radio device can be a cellular telephone.

For the purposes of summarizing the present disclosure, predetermined embodiments, advantages, and novel features of the invention have been described herein. It should be understood that not all of these benefits can be achieved by any particular embodiment of the invention. That is, the invention embodies or optimizes one or a group of benefits taught herein in an manner that achieves or optimizes without the need to achieve other benefits that may be taught or suggested herein. Can be executed.

A radio device having a communication module coupled to a primary antenna and a diversity antenna is shown. A diversity receiver (DRx) configuration including a DRx front-end module (FEM) is shown. In some embodiments, it is shown that the diversity receiver (DRx) configuration may include a DRx module with multiple paths corresponding to multiple frequency bands. In some embodiments, it is shown that a diversity receiver configuration may include a diversity RF module with fewer amplifiers than a diversity receiver (DRx) module. In some embodiments, it is shown that the diversity receiver configuration may include a DRx module coupled to an off-module filter. It is shown that in some embodiments, the gain of the variable gain amplifier can be bypassable. In some embodiments, it is shown that the gain of the variable gain amplifier can be step variable or continuously variable. In some embodiments, it is shown that the diversity receiver configuration may include a DRx module with a tunable matching circuit. In some embodiments, it is shown that the diversity receiver configuration may include multiple antennas. An embodiment of a flowchart representation of a method of processing an RF signal is shown. In some embodiments, it is shown that the diversity receiver configuration may include a DRx module with one or more phase matching components. In some embodiments, it is shown that the diversity receiver configuration may include a DRx module with one or more phase matching components and a two-stage amplifier. In some embodiments, it is shown that the diversity receiver configuration may include a DRx module with one or more phase matching components and one coupler post-stage amplifier. In some embodiments, it is shown that the diversity receiver configuration may include a DRx module with a tunable phase shift component. In some embodiments, it is shown that the diversity receiver configuration may include a DRx module with one or more impedance matching components. In some embodiments, it is shown that the diversity receiver configuration may include a DRx module with a tunable impedance matching component. In some embodiments, the diversity receiver configuration shows that a tunable impedance matching component may include a DRx module provided at the input and output. In some embodiments, it is shown that the diversity receiver configuration may include a DRx module with multiple tunable components. An embodiment of a flowchart representation of a method of processing an RF signal is shown. In some embodiments, it is shown that the diversity receiver configuration may include a diversity receiver (DRx) module with multiple bandpass filters provided at the outputs of the plurality of amplifiers. In some embodiments, it is shown that a diversity receiver configuration may include a diversity RF module with fewer amplifiers than a diversity receiver (DRx) module. In some embodiments, it is shown that the diversity receiver configuration may include a DRx module coupled to an off-module filter. In some embodiments, it is shown that the diversity receiver configuration may include a DRx module with a tunable matching circuit. In some embodiments, it is shown that the diversity receiver configuration may include a DRx module with a single pole / single throw switch. In some embodiments, it is shown that the diversity receiver configuration may include a DRx module with a tunable phase shift component. An embodiment of a flowchart representation of a method of processing an RF signal is shown. In some embodiments, it is shown that the diversity receiver configuration may include a DRx module with a tunable matching circuit. In some embodiments, it is shown that the diversity receiver configuration may include multiple transmit lines. An embodiment of an output multiplexer that can be used for the purpose of dynamic routing is shown. Other embodiments of the output multiplexer that can be used for the purpose of dynamic routing are shown. In some embodiments, it is shown that the diversity receiver configuration may include multiple antennas. An embodiment of an input multiplexer that can be used for the purpose of dynamic routing is shown. Other embodiments of the input multiplexer that can be used for the purpose of dynamic routing are shown. Various implementations of DRx modules with dynamic input routing and / or output routing are shown. Various implementations of DRx modules with dynamic input routing and / or output routing are shown. Various implementations of DRx modules with dynamic input routing and / or output routing are shown. Various implementations of DRx modules with dynamic input routing and / or output routing are shown. Various implementations of DRx modules with dynamic input routing and / or output routing are shown. Various implementations of DRx modules with dynamic input routing and / or output routing are shown. An embodiment of a flowchart representation of a method of processing an RF signal is shown. 41A and 41B show, in some embodiments, the diversity receiver configuration may include one or more features of Example A described herein and one or more features of Example B described herein. Is shown. 42A and 42B, in some embodiments, the diversity receiver configuration may include one or more features of Example A described herein and one or more features of Example C described herein. Is shown. 43A and 43B show, in some embodiments, the diversity receiver configuration may include one or more features of Example A described herein and one or more features of Example D described herein. Is shown. 44A and 44B, in some embodiments, the diversity receiver configuration may include one or more features of Example B described herein and one or more features of Example C described herein. Is shown. 45A and 45B, in some embodiments, the diversity receiver configuration may include one or more features of Example B described herein and one or more features of Example D described herein. Is shown. 46A and 46B show, in some embodiments, the diversity receiver configuration may include one or more features of Example C described herein and one or more features of Example D described herein. Is shown. 47A and 47B show, in some embodiments, a diversity receiver configuration with one or more features of Example A described herein and one or more features of Example B described herein. It is shown that it may include one or more features of Example C. 48A and 48B show, in some embodiments, a diversity receiver configuration with one or more features of Example A described herein and one or more features of Example B described herein. It is shown that it may include one or more features of Example D. 49A and 49B show, in some embodiments, a diversity receiver configuration with one or more features of Example A described herein and one or more features of Example C described herein. It is shown that it may include one or more features of Example D. 50A and 50B show, in some embodiments, a diversity receiver configuration with one or more features of Example B described herein and one or more features of Example C described herein. It is shown that it may include one or more features of Example D. 51A and 51B show, in some embodiments, a diversity receiver configuration with one or more features of Example A described herein and one or more features of Example B described herein. It is shown that one or more features of Example C to be described and one or more features of Example D described herein can be included. 52A and 52B show, in some embodiments, the diversity receiver configuration with one or more features of Example A described herein and one or more features of Example B described herein. It is shown that it may include one or more features of Example E. 53A and 53B show, in some embodiments, a diversity receiver configuration with one or more features of Example A described herein and one or more features of Example C described herein. It is shown that it may include one or more features of Example E. 54A and 54B show, in some embodiments, the diversity receiver configuration with one or more features of Example A described herein and one or more features of Example D described herein. It is shown that it may include one or more features of Example E. 55A and 55B show, in some embodiments, a diversity receiver configuration with one or more features of Example B described herein and one or more features of Example C described herein. It is shown that it may include one or more features of Example E. 56A and 56B show, in some embodiments, the diversity receiver configuration with one or more features of Example B described herein and one or more features of Example D described herein. It is shown that it may include one or more features of Example E. 57A and 57B show, in some embodiments, a diversity receiver configuration with one or more features of Example C described herein and one or more features of Example D described herein. It is shown that it may include one or more features of Example E. 58A and 58B show, in some embodiments, the diversity receiver configuration with one or more features of Example A described herein and one or more features of Example B described herein. It is shown that one or more features of Example C to be described and one or more features of Example E described herein can be included. 59A and 59B show, in some embodiments, the diversity receiver configuration with one or more features of Example A described herein and one or more features of Example B described herein. It is shown that one or more features of Example D to be made and one or more features of Example E described herein can be included. 60A and 60B show, in some embodiments, a diversity receiver configuration with one or more features of Example A described herein and one or more features of Example C described herein. It is shown that one or more features of Example D to be made and one or more features of Example E described herein can be included. 61A and 61B show, in some embodiments, a diversity receiver configuration with one or more features of Example B described herein and one or more features of Example C described herein. It is shown that one or more features of Example D to be made and one or more features of Example E described herein can be included. 62A and 62B show, in some embodiments, a diversity receiver configuration with one or more features of Example A described herein and one or more features of Example B described herein. It is shown that one or more features of Example C to be described, one or more features of Example D described herein, and one or more features of Example E described herein can be included. In some embodiments, the diversity receiver configuration comprises one or more features of Example A described herein, one or more features of Example B described herein, and one of Example F described herein. It is shown that the above features can be included. In some embodiments, the diversity receiver configuration comprises one or more features of Example A described herein, one or more features of Example C described herein, and one of Example F described herein. It is shown that the above features can be included. In some embodiments, the diversity receiver configuration comprises one or more features of Example A described herein, one or more features of Example D described herein, and one of Example F described herein. It is shown that the above features can be included. In some embodiments, the diversity receiver configuration comprises one or more features of Example B described herein, one or more features of Example C described herein, and one of Example F described herein. It is shown that the above features can be included. In some embodiments, the diversity receiver configuration comprises one or more features of Example B described herein, one or more features of Example D described herein, and one of Example F described herein. It is shown that the above features can be included. In some embodiments, the diversity receiver configuration comprises one or more features of Example C described herein, one or more features of Example D described herein, and one of Example F described herein. It is shown that the above features can be included. In some embodiments, the diversity receiver configuration is one or more features of Example A described herein, one or more features of Example B described herein, and one of Examples C described herein. It is shown that the above features and one or more features of Example F described herein can be included. In some embodiments, the diversity receiver configuration is one or more features of Example A described herein, one or more features of Example B described herein, and one of Example D described herein. It is shown that the above features and one or more features of Example F described herein can be included. In some embodiments, the diversity receiver configuration is one or more features of Example A described herein, one or more features of Example C described herein, and one of Example D described herein. It is shown that the above features and one or more features of Example F described herein can be included. In some embodiments, the diversity receiver configuration is one or more features of Example B described herein, one or more features of Example C described herein, and one of Example D described herein. It is shown that the above features and one or more features of Example F described herein can be included. In some embodiments, the diversity receiver configuration is one or more features of Example A described herein, one or more features of Example B described herein, and one of Examples C described herein. It is shown that the above features, one or more features of Example D described herein, and one or more features of Example F described herein can be included. In some embodiments, the diversity receiver configuration is one or more features of Example A described herein, one or more features of Example B described herein, and one of Example E described herein. It is shown that the above features and one or more features of Example F described herein can be included. In some embodiments, the diversity receiver configuration is one or more features of Example A described herein, one or more features of Example C described herein, and one of Example E described herein. It is shown that the above features and one or more features of Example F described herein can be included. In some embodiments, the diversity receiver configuration is one or more features of Example A described herein, one or more features of Example D described herein, and one of Example E described herein. It is shown that the above features and one or more features of Example F described herein can be included. In some embodiments, the diversity receiver configuration comprises one or more features of Example B described herein, one or more features of Example C described herein, and one of Example E described herein. It is shown that the above features and one or more features of Example F described herein can be included. In some embodiments, the diversity receiver configuration is one or more features of Example B described herein, one or more features of Example D described herein, and one of Example E described herein. It is shown that the above features and one or more features of Example F described herein can be included. In some embodiments, the diversity receiver configuration is one or more features of Example C described herein, one or more features of Example D described herein, and one of Example E described herein. It is shown that the above features and one or more features of Example F described herein can be included. In some embodiments, the diversity receiver configuration is one or more features of Example A described herein, one or more features of Example B described herein, and one of Examples C described herein. It is shown that the above features, one or more features of Example E described herein, and one or more features of Example F described herein can be included. In some embodiments, the diversity receiver configuration is one or more features of Example A described herein, one or more features of Example B described herein, and one of Example D described herein. It is shown that the above features, one or more features of Example E described herein, and one or more features of Example F described herein can be included. In some embodiments, the diversity receiver configuration is one or more features of Example A described herein, one or more features of Example C described herein, and one of Example D described herein. It is shown that the above features, one or more features of Example E described herein, and one or more features of Example F described herein can be included. In some embodiments, the diversity receiver configuration is one or more features of Example B described herein, one or more features of Example C described herein, and one of Example D described herein. It is shown that the above features, one or more features of Example E described herein, and one or more features of Example F described herein can be included. In some embodiments, the diversity receiver configuration is one or more features of Example A described herein, one or more features of Example B described herein, and one of Examples C described herein. It may include the above features, one or more features of Example D described herein, one or more features of Example E described herein, and one or more features of Example F described herein. Is shown. 85A and 85B show that, in some embodiments, the diversity receiver configuration may include one or more features of Example A described herein and one or more features of Example E described herein. Is shown. 86A and 86B show that, in some embodiments, the diversity receiver configuration may include one or more features of Example B described herein and one or more features of Example E described herein. Is shown. 87A and 87B show that, in some embodiments, the diversity receiver configuration may include one or more features of Example C described herein and one or more features of Example E described herein. Is shown. 88A and 88B, in some embodiments, the diversity receiver configuration may include one or more features of Example D described herein and one or more features of Example E described herein. Is shown. It is shown that in some embodiments, the diversity receiver configuration may include one or more features of Example A described herein and one or more features of Example F described herein. It is shown that in some embodiments, the diversity receiver configuration may include one or more features of Example B described herein and one or more features of Example F described herein. It is shown that in some embodiments, the diversity receiver configuration may include one or more features of Example C described herein and one or more features of Example F described herein. It is shown that in some embodiments, the diversity receiver configuration may include one or more features of Example D described herein and one or more features of Example F described herein. It is shown that in some embodiments, the diversity receiver configuration may include one or more features of Example E described herein and one or more features of Example F described herein. In some embodiments, the diversity receiver configuration comprises one or more features of Example A described herein, one or more features of Example E described herein, and one of Example F described herein. It is shown that the above features can be included. In some embodiments, the diversity receiver configuration comprises one or more features of Example B described herein, one or more features of Example E described herein, and one of Example F described herein. It is shown that the above features can be included. In some embodiments, the diversity receiver configuration comprises one or more features of Example C described herein, one or more features of Example E described herein, and one of Example F described herein. It is shown that the above features can be included. In some embodiments, the diversity receiver configuration is one or more features of Example D described herein, one or more features of Example E described herein, and one of Example F described herein. It is shown that the above features can be included. In some embodiments, it is shown that a diversity receiver configuration with one or more features described herein can be implemented in a module such as a diversity receiver (DRx) module. A diversity receiver architecture with one or more features described herein is shown. A radio device having one or more features described herein is shown.

The headings given herein, if any, are for convenience only and do not necessarily affect the scope or meaning of the claimed invention.

Introduction

FIG. 1 shows a wireless device 100 having a communication module 110 coupled to a primary antenna 130 and a diversity antenna 140. The communication module 110 (and its components) can be controlled by the controller 120. The communication module 110 includes a transmitter / receiver 112 configured to perform conversion between an analog radio frequency (RF) signal and a digital data signal. For that purpose, the transmitter / receiver 112 includes a digital / analog converter, an analog / digital converter, a local oscillator that modulates the base band analog signal to or demolishes the carrier frequency, digital samples and data bits (eg, voice or others). It may include a baseband processor, or other component, that converts between (types of data).

The communication module 110 further includes an RF module 114 coupled between the primary antenna 130 and the transmitter / receiver 112. The RF module 114 can be referred to as a front-end module (FEM) because the RF module 114 is physically close to the primary antenna 130 to reduce attenuation due to cable loss. The RF module 114 can process an analog signal received from the primary antenna 130 of the transmitter / receiver 112 or an analog signal received from the transmitter / receiver 112 and transmitted via the primary antenna 130. For that purpose, the RF module 114 may include a filter, a power amplifier, a band selection switch, a matching circuit and other components. Similarly, the communication module 110 includes a diversity RF module 116 coupled between a transmitter / receiver 112 and a diversity antenna 140 performing similar processing.

When the signal is transmitted to the radio device, the signal can be received by both the primary antenna 130 and the diversity antenna 140. Since the primary antenna 130 and the diversity antenna 140 are physically separated, the signals received by the primary antenna 130 and the diversity antenna 140 have different characteristics. For example, in one embodiment, the primary antenna 130 and the diversity antenna 140 may receive signals with different attenuation, noise, frequency response or phase shift. The transmitter / receiver 112 can use both signals with different characteristics to determine the data bit corresponding to the signal. In some implementations, the transmitter / receiver 112 is selected from between the primary antenna 130 and the diversity antenna 140, such that the antenna with the highest signal-to-noise ratio is selected based on the characteristics. In some implementations, the transmitter / receiver 112 combines the signal from the primary antenna 130 with the signal from the diversity antenna 140 to increase the signal-to-noise ratio of the combined signal. In some implementations, the transmitter / receiver 112 processes a signal for multiple input / multiple output (MIMO) communication.

Since the diversity antenna 140 is physically separated from the primary antenna 130, the diversity antenna 140 is coupled to the communication module 110 via a transmission line 135 such as a cable or printed circuit board (PCB) trace. In some implementations, the transmit line 135 is lossy, attenuating the signal received at the diversity antenna 140, after which the signal reaches the communication module 110. That is, in some implementations, gain is applied to the signal received by the diversity antenna 140, as described below. Gain (or other analog processing such as filtering) can be applied by the diversity receiver module. Since such a diversity receiver module is provided physically close to the diversity antenna 140, it can be referred to as a diversity receiver front-end module.

FIG. 2 shows a diversity receiver (DRx) configuration 200 including a DRx front-end module (FEM) 210. The DRx configuration 200 includes a diversity antenna 140 configured to receive the diversity signal and give the diversity signal to the DRxFEM 210. The DRxFEM 210 is configured to process the diversity signal received from the diversity antenna 140. For example, the DRxFEM 210 can be configured to filter the diversity signal into, for example, one or more active frequency bands indicated by the controller 120. In another example, the DRxFEM210 can be configured to amplify the diversity signal. For that purpose, the DRxFEM210 may include a filter, a low noise amplifier, a band selection switch, a matching circuit and other components.

The DRxFEM 210 transmits the processed diversity signal via the transmission line 135 to a downstream module such as the diversity RF (D-RF) module 116. The downstream module supplies the further processed diversity signal to the transmitter / receiver 112. The diversity RF module 116 (and, in some implementations, the transmitter / receiver) is controlled by the controller 120. In some implementations, the controller 120 can be mounted within the transmitter / receiver 112.

FIG. 3 shows that, in some embodiments, the diversity receiver (DRx) configuration 300 may include a DRx module 310 with multiple paths corresponding to multiple frequency bands. The DRx configuration 300 includes a diversity antenna 140 configured to receive diversity signals. In some implementations, the diversity signal can be a single band signal containing data modulated into a single frequency band. In some implementations, the diversity signal can be a multiband signal (also referred to as an interband carrier aggregation signal) containing data modulated into a multifrequency band.

The DRx module 310 has an input for receiving the diversity signal from the diversity antenna 140 and an output for feeding the processed diversity signal to the transmitter / receiver 330 (via the transmit line 135 and the diversity RF module 320). The input of the DRx module 310 is supplied to the input of the first multiplexer (MUX) 311. The first multiplexer 311 includes a plurality of multiplexer outputs. Each multiplexer output corresponds to a path between the inputs and outputs of the DRx module 310. Each path may correspond to each frequency band. The output of the DRx module 310 is given by the output of the second multiplexer 312. The second multiplexer 312 includes a plurality of multiplexer inputs. Each multiplexer input corresponds to one of the paths between the input and output of the DRx module 310.

The frequency band can be a cellular frequency band such as the UMTS (Universal Mobile Communication System) frequency band. For example, the first frequency band may be the UMTS downlink or "Rx" band 2 from 1930 MHz (MHZ) to 1990 MHz and the second frequency band may be the UMTS downlink or "Rx" band 5 from 869 MHz to 894 MHz. Other downlink frequency bands, such as those listed below in Table 1 or other non-UMTS frequency bands, may also be used.

In some implementations, the DRx module 310 includes a DRx controller 302. The DRx controller 302 receives a signal from the controller 120 (also referred to as a communication controller) and selectively activates one or more of the plurality of paths between the input and the output based on the received signal. In some implementations, the DRx module 310 does not include the DRx controller 302, with the controller 120 directly and selectively activating one or more of the plurality of paths.

As mentioned here, in some implementations, the diversity signal is a single band signal. That is, in some implementations, the first multiplexer 311 routes a diversity signal to one of a plurality of paths corresponding to the frequency band of a single band signal based on the signal received from the DRx controller 302. / Multi-throw (SPMT) switch. The DRx controller 302 can generate a signal based on the band selection signal received from the communication controller 120 by the DRx controller 302. Similarly, in some implementations, the second multiplexer 312 is a SPMT switch that routes a signal from one of a plurality of paths corresponding to the frequency band of a single band signal based on the signal received from the DRx controller 302. Is.

As mentioned here, in some implementations, the diversity signal is a multiband signal. That is, in some implementations, the first multiplexer 311 sends the diversity signal to two or more of the plurality of paths corresponding to two or more frequency bands of the multiple band signal based on the divider control signal received from the DRx controller 302. It is a band divider to be routed. The function of the signal divider can be implemented as a SPMT switch, a diplexer filter, or any combination thereof. Similarly, in some implementations, the second multiplexer 312 transfers signals from two or more of a plurality of paths corresponding to two or more frequency bands of a multiband signal into a combiner control signal received from the DRx controller 302. It is a signal coupler that couples based on. The function of the signal coupler can be implemented as a SPMT switch, a diplexer filter, or any combination thereof. The DRx controller 302 can generate a divider control signal and a combiner control signal based on the band selection signal received by the DRx controller 302 from the communication controller 120.

That is, in some implementations, the DRx controller 302 selectively activates one or more of a plurality of paths based on the band selection signal received by the DRx controller 302 (eg, from the communication controller 120). It is composed. In some implementations, the DRx controller 302 selectively activates one or more of a plurality of paths by transmitting a divider control signal to the signal divider and a combiner control signal to the signal combiner. It is configured as follows.

The DRx module 310 includes a plurality of bandpass filters 313a to 313d. Each one of the bandpass filters 313a to 313d is provided along the corresponding one of the plurality of paths, and filters the signal received by the bandpass filter into the corresponding frequency band of the plurality of paths. It is configured as follows. In some implementations, the passband filters 313a-313d are further configured to filter the signal received by the passband filter into the downlink frequency subband of the one corresponding frequency band of the plurality of paths. .. The DRx module 310 includes a plurality of amplifiers 314a to 314d. Each one of the amplifiers 314a to 314d is provided along the corresponding one of the plurality of paths and is configured to amplify the signal received by the amplifier.

In some implementations, amplifiers 314a-314d are narrowband amplifiers configured to amplify signals within the corresponding frequency band of the path in which the amplifier is provided. In some implementations, the amplifiers 314a-314d are controllable by the DRx controller 302. For example, in some implementations, amplifiers 314a-314d each include an enable / disable input and are enabled (or disabled) based on the amplifier enable signal received at the enable / disable input. The amplifier enable signal can be transmitted by the DRx controller 302. That is, in some implementations, the DRx controller 302 transmits an amplifier enable signal to one or more of the amplifiers 314a to 314d, each of which is provided along one or more of the plurality of paths, thereby transmitting the amplifier enable signal to the plurality of paths. It is configured to selectively activate one or more. In such an implementation, rather than being controlled by the DRx controller 302, the first multiplexer 311 is a signal divider that routes the diversity signal to each of the plurality of paths, and the second multiplexer 312 is from each of the plurality of paths. It can be a signal coupler that couples the signals of. However, in an implementation in which the DRx controller 302 controls the first multiplexer 311 and the second multiplexer 312, the DRX controller 302 also enables (or disables) certain amplifiers 314a-314d, eg, to save battery power. You can also do it.

In some implementations, the amplifiers 314a-314d are variable gain amplifiers (VGAs). That is, in some implementations, the DRx module 310 includes a plurality of variable gain amplifiers (VGAs), each of which is provided along the corresponding one of the plurality of paths and the signal received in the VGA. Is configured to be amplified by the gain controlled by the amplifier control signal received from the DRx controller 302.

The VGA gain can be bypassable, step variable, or continuously variable. In some implementations, at least one VGA includes a fixed gain amplifier and a bypass switch controllable by an amplifier control signal. The bypass switch (in position 1) can allow the signal to bypass the fixed gain amplifier by closing the line between the input of the fixed gain amplifier and the output of the fixed gain amplifier. .. The bypass switch can allow the signal to pass through a fixed gain amplifier by opening the line between the input and the output (at the second position). In some implementations, the fixed gain amplifier is disabled if the bypass switch is in the first position and reconfigured to fit the bypass mode otherwise.

In some implementations, at least one of the VGAs comprises a step variable gain amplifier configured to amplify the signal received in the VGA with one gain of a plurality of settings indicated by the amplifier control signal. .. In some implementations, at least one VGA comprises a continuously variable gain amplifier configured to amplify the signal received in the VGA with a gain proportional to the amplifier control signal.

In some implementations, the amplifiers 314a-314d are variable current amplifiers (VCAs). The current drawn by the VCA can be bypassable, step variable, or continuously variable. In some implementations, at least one of the VCAs includes a fixed current amplifier and a bypass switch controllable by an amplifier control signal. The bypass switch (in position 1) can allow the signal to bypass the fixed current amplifier by closing the line between the input of the fixed current amplifier and the output of the fixed current amplifier. .. The bypass switch can allow the signal to pass through a fixed current amplifier by opening the line between the input and the output (at the second position). In some implementations, the fixed current amplifier is disabled if the bypass switch is in the first position and reconfigured to fit the bypass mode otherwise.

In some implementations, at least one of the VCA is a step variable current amplifier configured to amplify the signal received in the VCA by drawing one of a set of currents indicated by the amplifier control signal. including. In some implementations, at least one of the VCAs comprises a continuously variable current amplifier configured to amplify the signal received in the VCA by drawing a current proportional to the amplifier control signal.

In some implementations, the amplifiers 314a-314d are fixed gain, fixed current amplifiers. In some implementations, the amplifiers 314a-314d are fixed gain, variable current amplifiers. In some implementations, the amplifiers 314a-314d are variable gain, fixed current amplifiers. In some implementations, the amplifiers 314a-314d are variable gain, variable current amplifiers.

In some implementations, the DRx controller 302 generates an amplifier control signal (s) based on the quality of service metric of the input signal received at the input. In some implementations, the DRx controller 302 generates an amplifier control signal (s) based on the signal received from the communication controller 120. The amplifier control signal can also be based on the quality of service (QoS) metric of the received signal. The QoS metric of the received signal may be, at least in part, based on the diversity signal received at the diversity antenna 140 (eg, the input signal received at the input). The QoS metric of the received signal can also be based on the signal received at the primary antenna. In some implementations, the DRx controller 302 generates an amplifier control signal (s) based on the QoS metric of the diversity signal without receiving a signal from the communication controller 120.

In some implementations, QoS metrics include signal strength. In another example, the QoS metric can include bit error rate, data throughput, transmission delay, or any other QoS metric.

As mentioned here, the DRx module 310 has an input that receives the diversity signal from the diversity antenna 140 and an output that feeds the processed diversity signal to the transmitter / receiver 330 (via the transmit line 135 and the diversity RF module 320). And have. The diversity RF module 320 receives the processed diversity signal via the transmission line 135 for further processing. In particular, the processed diversity signal is divided or routed into one or more paths by the diversity RF multiplexer 321. In that path, the split or routed signal is filtered by the corresponding bandpass filters 323a-323d and amplified by the corresponding amplifiers 324a-324d. The output of each of the amplifiers 324a to 324d is given to the transmitter / receiver 330.

The diversity RF multiplexer 321 can be controlled by the controller 120 (either directly or via an on-chip diversity RF controller) to selectively activate one or more of the paths. Similarly, amplifiers 324a-324d may also be controlled by the controller 120. For example, in some implementations, each of the amplifiers 324a-324d includes an enable / disable input and is enabled (or disabled) based on the amplifier enable signal. In some implementations, the amplifiers 324a-324d amplify the signal received in VGA by the gain controlled by the amplifier control signal received from the controller 120 (or the on-chip diversity RF controller controlled by the controller 120). It is a variable gain amplifier (VGA). In some implementations, the amplifiers 324a-324d are variable current amplifiers (VCAs).

By adding the DRx module 310 to the receiver chain that already includes the diversity RF module 320, the number of passband filters in the DRx configuration 300 is doubled. That is, in some implementations, the bandpass filters 323a-323d are not included in the diversity RF module 320. Rather, the bandpass filters 313a-313d of the DRx module 310 are used to reduce the strength of the out-of-band blocker. Further, the automatic gain control (AGC) table of the diversity RF module 320 is shifted to reduce the gain amount given by the amplifiers 324a to 324d of the diversity RF module 320 by the gain amount given by the amplifiers 314a to 314d of the DRx module 310. Can be done.

For example, if the DRx module gain is 15 dB and the receiver sensitivity is −100 dBm, the diversity RF module 320 has a sensitivity of −85 dBm. When the closed-loop AGC of the diversity RF module 320 is activated, its gain automatically drops by 15 dB. However, both the signal component and the out-of-band blocker are received and amplified by 15 dB. That is, the 15 dB gain drop of the diversity RF module 320 may be accompanied by a 15 dB increase in its linearity. In particular, the amplifiers 324a-324d of the diversity RF module 320 may be designed so that the linearity of the amplifier increases with gain reduction (or current increase).

In some implementations, the controller 120 controls the gain (and / or current) between the amplifiers 314a-314d of the DRx module 310 and the amplifiers 324a-324d of the diversity RF module 320. As in the example here, the controller 120 has a constant amount provided by the amplifiers 324a to 324d of the diversity RF module 320 in response to an increase in a certain amount of gain provided by the amplifiers 314a to 314d of the DRx module 310. Gain can be reduced. That is, in some implementations, the controller 120 turns the downstream amplifier control signal (for amplifiers 324a-324d of the diversity RF module 320) into the amplifier control signal (for amplifiers 314a-314d of the DRx module 310). It is configured to control the gain of one or more downstream amplifiers 324a-324d generated based on and coupled to the output (of the DRx module 310) via the transmit line 135. In some implementations, the controller 120 also controls the gain of other components of the radio, such as the amplifier in the front-end module (FEM), based on the amplifier control signal.

As mentioned here, bandpass filters 323a-323d are not included in some implementations. That is, in some implementations, at least one of the downstream amplifiers 324a-324d is coupled to the output (of the DRx module 310) via the transmit line 135 without passing through the downstream bandpass filter.

FIG. 4 shows that, in some embodiments, the diversity receiver configuration 400 may include a diversity RF module 420 with fewer amplifiers than the diversity receiver (DRx) module 310. The diversity receiver configuration 400 includes the diversity antenna 140 and the DRx module 310 described herein with reference to FIG. The output of the DRx module 310 passes through the transmit line 135 to the diversity RF module 420. The diversity RF module 420 differs from the diversity RF module 320 of FIG. 3 in that the diversity RF module 420 of FIG. 4 contains fewer amplifiers than the DRx module 310.

As mentioned herein, in some implementations, the diversity RF module 420 does not include a passband filter. That is, in some implementations, one or more amplifiers 424 of the diversity RF module 420 need not be band-specific. In particular, the diversity RF module 420 may include one or more paths. Each path includes an amplifier 424 that is not one-to-one mapped to the path of the DRx module 310. The mapping of such a path (or corresponding amplifier) can be stored in the controller 120.

Thus, the DRx module 310 may include a fixed number of paths, each corresponding to one frequency band, while the diversity RF module 420 may include one or more paths that do not correspond to a single frequency band.

In some implementations (shown in FIG. 4), the diversity RF module 420 provides a single wideband or tunable amplifier 424 that amplifies the signal received from the transmit line 135 and outputs the amplified signal to the multiplexer 421. include. The multiplexer 421 includes a plurality of multiplexer outputs, each of which corresponds to each frequency band. In some implementations, the diversity RF module 420 does not include any amplifier.

In some implementations, the diversity signal is a single band signal. That is, in some implementations, the multiplexer 421 is a SPMT switch that routes the diversity signal based on the signal received from the controller 120 into one corresponding to the frequency band of the single band signal of multiple outputs. .. In some implementations, the diversity signal is a multiband signal. That is, in some implementations, the multiplexer 421 translates the diversity signal from the divider control signal received from the controller 120 into two or more corresponding to two or more frequency bands of the multiband signal of multiple outputs. It is a signal divider to be routed. In some implementations, the diversity RF module 420 can be combined with the transmitter / receiver 330 as a single module.

In some implementations, the diversity RF module 420 includes multiplex amplifiers, each corresponding to a set of frequency bands. The signal from the transmission line 135 can be supplied to a band divider that outputs a high frequency to the high frequency amplifier along the first path and outputs a low frequency to the low frequency amplifier along the second path. The output of each amplifier can be fed to a multiplexer 421 configured to route the signal to the corresponding input of the transmitter / receiver 330.

FIG. 5 shows that in some embodiments, the diversity receiver configuration 500 may include a DRx module 510 coupled to an off-module filter 513. The DRx module 510 may include a packaging board 501 configured to accept a plurality of components and a receiving system mounted on the packaging board 501. The DRx module 510 may include one or more signal paths routed out of the DRx module 510 and made available to system integrators, designers or manufacturers to support filters for any desired band.

The DRx module 510 includes a fixed number of paths between the inputs and outputs of the DRx module 510. The DRx module 510 includes a bypass path between inputs and outputs activated by a bypass switch 519 controlled by the DRx controller 502. Although FIG. 5 illustrates a single bypass switch 519, in some implementations the bypass switch 519 is a multiplex switch (eg, a first switch located close to the physical of the input, and the physical of the output. A second switch) provided near the target may be included. As shown in FIG. 5, the bypass path does not include a filter or amplifier.

The DRx module 510 includes a fixed number of multiplexer paths including a first multiplexer 511 and a second multiplexer 512. The multiplexer path contains a certain number of on-module paths. It includes a first multiplexer 511, bandpass filters 313a-313d mounted on the packaging board 501, amplifiers 314a-314d mounted on the packaging board 501, and a second multiplexer 512. The multiplexer path includes one or more off-module paths. It includes a first multiplexer 511, a bandpass filter 513 mounted outside the packaging substrate 501, an amplifier 514, and a second multiplexer 512. The amplifier 514 can be a broadband amplifier mounted on the packaging board 501, or can be mounted outside the packaging board 501. As described herein, the amplifiers 314a to 314d and 514 can be variable gain amplifiers and / or variable current amplifiers.

The DRx controller 502 is configured to selectively activate one or more of the plurality of paths between the input and the output. In some implementations, the DRx controller 502 is configured to selectively activate one or more of a plurality of paths based on the band selection signal received by the DRx controller 502 (eg, from a communication controller). .. The DRx controller 502 selectively activates the route, for example, by opening and closing the bypass switch 519, by enabling or disabling the amplifiers 314a to 314d, 514, by controlling the multiplexers 511 and 512, or via other mechanisms. Can be. For example, the DRx controller 502 opens and closes a switch along the path (eg, between filters 313a-313d, 513 and amplifiers 314a-314d, 514), or substantially gains gains on amplifiers 314a-314d, 514. Can be set to zero.

Example A: Variable gain amplifier

As described herein, the amplifier that processes the received signal can be a variable gain amplifier (VGA). That is, in some implementations, the DRx module comprises multiple variable gain amplifiers (VGAs), each of which is provided along the corresponding one of the plurality of paths to receive the signal received in that VGA. , The amplifier control signal received from the DRx controller is configured to be amplified by the controlled gain.

In some embodiments, the gain of VGA can be bypassable, step variable, and continuously variable. FIG. 6 shows that in some embodiments, the variable gain amplifier A350 can be bypassed. The variable gain amplifier A350 includes a fixed gain amplifier A351 and a bypass switch A352 that can be controlled by an amplifier control signal generated by the DRx controller A302. The bypass switch A352 can allow a signal to bypass the fixed gain amplifier A351 by closing the line from the input of the fixed gain amplifier A351 (at the first position) to the output of the fixed gain amplifier. The bypass switch A352 can open the line between the input of the fixed gain amplifier A351 and the output of the fixed gain amplifier A351 (at the second position) to allow the signal to pass through the fixed gain amplifier A351. In some implementations, the fixed gain amplifier is disabled if the bypass switch is in the first position and reconfigured to fit the bypass mode otherwise. Referring to the example of FIG. 3, in some implementations, at least one of VGAs 314a-314d includes a fixed gain amplifier and a bypass switch controllable by an amplifier control signal.

FIG. 7 shows that, in some embodiments, the gain of the variable gain amplifier A360 can be step variable or continuously variable. In some implementations, the variable gain amplifier A360 is step variable and is a variable gain amplifier with one gain of a plurality of settings indicated by the digital signal in response to the digital amplifier control signal generated by the DRx controller A302. The signal received at the input of A360 is amplified. In some implementations, the variable gain amplifier A360 is continuously variable and variable by a gain proportional to the characteristics of the analog signal (eg voltage or duty cycle) in response to the analog amplifier control signal generated by the DRx controller A302. The signal received at the input of the gain amplifier A360 is amplified. Referring to the example of FIG. 3, in some implementations, at least one of VGAs 314a-314d is such that the signal received in the VGA is amplified by one gain of a plurality of settings indicated by the amplifier control signal. Includes a step variable gain amplifier configured in. In some implementations, at least one of VGAs 314a-314d in FIG. 3 includes a continuously variable gain amplifier configured to amplify the signal received in that VGA with a gain proportional to the amplifier control signal.

In some implementations, the amplifiers 314a-314d of FIG. 3 can be variable current amplifiers (VCA). The current drawn by the VCA can be bypassable, step variable, or continuously variable. In some implementations, at least one of the VCAs includes a fixed current amplifier and a bypass switch controllable by an amplifier control signal. The bypass switch (in position 1) can allow the signal to bypass the fixed current amplifier by closing the line between the input of the fixed current amplifier and the output of the fixed current amplifier. .. The bypass switch can allow the signal to pass through a fixed current amplifier by opening the line between the input and the output (at the second position). In some implementations, the fixed current amplifier is disabled if the bypass switch is in the first position and reconfigured to fit the bypass mode otherwise.

In some implementations, at least one of the VCA is a step variable current amplifier configured to amplify the signal received in the VCA by drawing one of a set of currents indicated by the amplifier control signal. including. In some implementations, at least one of the VCAs comprises a continuously variable current amplifier configured to amplify the signal received in the VCA by drawing a current proportional to the amplifier control signal.

In some implementations, the amplifiers 314a-314d of FIG. 3 are fixed gain, fixed current amplifiers. In some implementations, the amplifiers 314a-314d are fixed gain, variable current amplifiers. In some implementations, the amplifiers 314a-314d are variable gain, fixed current amplifiers. In some implementations, the amplifiers 314a-314d are variable gain, variable current amplifiers.

In some implementations, the DRx controller 302 generates an amplifier control signal (s) based on the quality of service metric of the input signal received at input 311 of the first multiplexer. In some implementations, the DRx controller 302 generates an amplifier control signal (s) based on the signal received from the communication controller 120. The amplifier control signal can also be based on the quality of service (QoS) metric of the received signal. The QoS metric of the received signal may be, at least in part, based on the diversity signal received at the diversity antenna 140 (eg, the input signal received at the input). The QoS metric of the received signal can also be based on the signal received at the primary antenna. In some implementations, the DRx controller 302 generates an amplifier control signal (s) based on the QoS metric of the diversity signal without receiving a signal from the communication controller 120.

In some implementations, QoS metrics include signal strength. In another example, the QoS metric can include bit error rate, data throughput, transmission delay, or any other QoS metric.

As described here, the DRx module 310 of FIG. 3 transmits the input for receiving the diversity signal from the diversity antenna 140 and the processed diversity signal to the transmitter / receiver 330 (via the transmission line 135 and the diversity RF module 320). ) Has an output to give. The diversity RF module 320 receives the processed diversity signal via the transmission line 135 for further processing. In particular, the processed diversity signal is divided or routed into one or more paths by the diversity RF multiplexer 321. In that path, the split or routed signal is filtered by the corresponding bandpass filters 323a-323d and amplified by the corresponding amplifiers 324a-324d. The output of each of the amplifiers 324a to 324d is given to the transmitter / receiver 330.

The diversity RF multiplexer 321 can be controlled by the controller 120 (either directly or via an on-chip diversity RF controller) to selectively activate one or more of the paths. Similarly, amplifiers 324a-324d may also be controlled by the controller 120. For example, in some implementations, each of the amplifiers 324a-324d includes an enable / disable input and is enabled (or disabled) based on the amplifier enable signal. In some implementations, the amplifiers 324a-324d amplify the signal received in VGA by the gain controlled by the amplifier control signal received from the controller 120 (or the on-chip diversity RF controller controlled by the controller 120). It is a variable gain amplifier (VGA). In some implementations, the amplifiers 324a-324d are variable current amplifiers (VCAs).

Adding the DRx module 310 to the receiver chain that already includes the diversity RF module 320 doubles the number of passband filters in the DRx configuration 300. That is, in some implementations, the bandpass filters 323a-323d are not included in the diversity RF module 320. Rather, the bandpass filters 313a-313d of the DRx module 310 are used to reduce the strength of the out-of-band blocker. Further, the automatic gain control (AGC) table of the diversity RF module 320 is shifted to reduce the gain amount given by the amplifiers 324a to 324d of the diversity RF module 320 by the gain amount given by the amplifiers 314a to 314d of the DRx module 310. Can be done.

For example, if the DRx module gain is 15 dB and the receiver sensitivity is −100 dBm, the diversity RF module 320 has a sensitivity of −85 dBm. When the closed-loop AGC of the diversity RF module 320 is activated, its gain automatically drops by 15 dB. However, both the signal component and the out-of-band blocker are received and amplified by 15 dB. That is, in some implementations, the 15 dB gain drop of the diversity RF module 320 may also be accompanied by a 15 dB increase in its linearity. In particular, the amplifiers 324a-324d of the diversity RF module 320 may be designed so that the linearity of the amplifier increases with gain reduction (or current increase).

In some implementations, the controller 120 controls the gain (and / or current) between the amplifiers 314a-314d of the DRx module 310 and the amplifiers 324a-324d of the diversity RF module 320. As in the example here, the controller 120 has a constant amount provided by the amplifiers 324a to 324d of the diversity RF module 320 in response to an increase in a certain amount of gain provided by the amplifiers 314a to 314d of the DRx module 310. Gain can be reduced. That is, in some implementations, the controller 120 turns the downstream amplifier control signal (for amplifiers 324a-324d of the diversity RF module 320) into the amplifier control signal (for amplifiers 314a-314d of the DRx module 310). It is configured to control the gain of one or more downstream amplifiers 324a-324d generated based on and coupled to the output (of the DRx module 310) via the transmit line 135. In some implementations, the controller 120 also controls the gain of other components of the radio, such as the amplifier in the front-end module (FEM), based on the amplifier control signal.

As mentioned here, bandpass filters 323a-323d are not included in some implementations. That is, in some implementations, at least one of the downstream amplifiers 324a-324d is coupled to the output (of the DRx module 310) via the transmit line 135 without passing through the downstream bandpass filter. An example of such an implementation is described herein with reference to FIG.

FIG. 8 shows that in some embodiments, the diversity receiver configuration A600 may include a DRx module A610 with a tunable matching circuit. In particular, the DRx module A610 may include one or more tunable matching circuits provided at one or more of the inputs and outputs of the DRx module A610.

It is unlikely that all of the multiple frequency bands received by the same diversity antenna 140 will be ideal impedance matching. In order to match each frequency band using a compact matching circuit, a tunable input matching circuit A616 is mounted on the input of the DRx module A610 (eg, based on a band selection signal from the communication controller) by the DRx controller A602. Can be controlled. The DRx controller A602 can tune the tunable input matching circuit A616 based on a look-up table that associates a plurality of frequency bands (or a plurality of sets of frequency bands) with tuning parameters. The tunable input matching circuit A616 can be a tunable T-type circuit, a tunable π-type circuit, or any other tunable matching circuit. In particular, the tunable input matching circuit A616 may include one or more variable components such as resistors, inductors and capacitors. These variable components may be connected in parallel and / or in series and may be connected between the input of the DRx module A610 and the input of the first multiplexer A311 or the input of the DRx module A610 and the ground voltage. You may connect between.

Similarly, with only one transmit line 135 (or at least some cables) carrying signals in many frequency bands, it is unlikely that the entire multiple frequency band will be ideal impedance matching. In order to match each frequency band using the compact matching circuit, the tunable output matching circuit A617 is mounted on the output of the DRx module A610 (for example, based on the band selection signal from the communication controller) by the DRx controller A602. Can be controlled. The DRx controller A602 can tune the tunable output matching circuit A618 based on a look-up table that associates a plurality of frequency bands (or a plurality of sets of frequency bands) with tuning parameters. The tunable output matching circuit A617 can be a tunable T-type circuit, a tunable π-type circuit, or any other tunable matching circuit. In particular, the tunable output matching circuit A617 may include one or more variable components such as resistors, inductors and capacitors. These variable components may be connected in parallel and / or in series, and may be connected between the output of the DRx module A610 and the output of the second multiplexer A312, or the output of the DRx module A610 and the ground voltage. You may connect between.

FIG. 9 shows that in some embodiments, the diversity receiver configuration A700 may include multiple antennas. Although FIG. 9 illustrates an embodiment with two antennas A740a-A740b and one transmit line 135, the embodiments described herein are more than two antennas and / or two or more cables. Can be implemented in an embodiment provided with.

The diversity receiver configuration A700 includes a DRx module A710 coupled to a first antenna A740a and a second antenna A740b. In some implementations, the first antenna A740a is a high band antenna configured to receive the signal transmitted in the high frequency band and the second antenna A740b receives the signal transmitted in the low frequency band. It is a low band antenna configured to do so.

The DRx module A710 includes a first tunable input matching circuit A716a at the first input of the DRx module A710 and a second tunable input matching circuit A716b at the second input of the DRx module A710. The DRx module A710 further includes a tunable output matching circuit A717 at the output of the DRx module A710. The DRx controller A702 can tune each of the tunable matching circuits A716a to A716b and A717 based on a look-up table that associates a plurality of frequency bands (or a plurality of sets of frequency bands) with tuning parameters. The tunable matching circuits A716a to A716b, A717 can be a tunable T-type circuit, a tunable π-type circuit, or any other tunable matching circuit.

The DRx module A710 is located between the input of the DRx module A710 (the first input coupled to the first antenna A740a and the second input coupled to the second antenna A740b) and the output (coupled to the transmit line 135). Contains a certain number of routes. In some implementations, the DRx module A710 includes one or more bypass paths (not shown) between inputs and outputs activated by one or more bypass switches controlled by the DRx controller A702.

The DRx module A710 includes one of the first input multiplexer A711a and the second input multiplexer A711b, and also includes a fixed number of multiplexer paths including the output multiplexer A712. The multiplexer path includes a certain number of on-module paths (shown). It includes one of the tunable input matching circuits A716a to A716b, one of the input multiplexers A711a to A711b, one bandpass filter A713a to A713h, one amplifier A714a to A714h, an output multiplexer A712 and an output matching circuit A717. The multiplexer route may include one or more off-module routes (not shown) described herein. Again, as described herein, the amplifiers A714a-A714h may be variable gain amplifiers and / or variable current amplifiers.

The DRx controller A702 is configured to selectively activate one or more of a plurality of paths between inputs and outputs. In some implementations, the DRx controller A702 is configured to selectively activate one or more of a plurality of paths based on the band selection signal received by the DRx controller A702 (eg, from a communication controller). .. In some implementations, the DRx controller A702 is configured to tune the tunable matching circuits A716a-A716b, A717 based on the band selection signal. The DRx controller A702 selectively activates the path, for example, by enabling or disabling the amplifiers A714a-A714h, by controlling the multiplexers A711a-A711b, A712, or via other mechanisms described herein. be able to.

FIG. 10 shows an embodiment of a flowchart representation of a method of processing an RF signal. In some implementations (and as detailed below, as an example), method A800 is performed by a controller such as the DRx controller 302 in FIG. 3 or the communication controller 120 in FIG. In some implementations, method A800 can be done by processing logic including hardware, firmware, software or a combination thereof. In some implementations, method A800 is performed by a processor that executes code stored on a non-temporary computer-readable medium (eg, memory). Briefly, method A800 includes receiving a band selection signal and routing the received RF signal along one or more gain control paths to process the received RF signal.

Method A800 begins with the controller receiving a band selection signal at block A810. The controller may receive a band selection signal from another controller, or may receive a band selection signal from a cellular base station or other external source. The band selection signal can indicate one or more frequency bands in which the radio device sends and receives RF signals. In some implementations, the band selection signal indicates a set of frequency bands for carrier aggregation communication.

In some implementations, the controller tunes one or more tunable matching circuits based on the receive band selection signal. For example, the controller can tune a tunable matching circuit based on a look-up table that associates a plurality of frequency bands (or a plurality of sets of frequency bands) indicated by a band selection signal with tuning parameters.

At block A820, the controller selectively activates one or more paths of the diversity receiver (DRx) module based on the band selection signal. As described herein, a DRx module is constant between one or more inputs (coupled to one or more antennas) and one or more outputs (coupled to one or more cables) of the DRx module. It may include a number of paths. The route may include a bypass route and a multiplexer route. The multiplexer path may include an on-module path and an off-module path.

The controller divides one or more of a plurality of paths by enabling or disabling one or more of the paths, for example, by opening or closing one or more bypass switches, and by enabling or disabling an amplifier provided along the path via an amplifier enable signal. It can be selectively activated by the control of one or more multiplexers via control signals and / or combiner control signals, or through other mechanisms. For example, the controller can open or close a switch along the path, or set the gain of an amplifier along the path to substantially zero.

At block A830, the controller sends an amplifier control signal to one or more amplifiers, each provided along one or more activated paths. The amplifier control signal controls the gain (or current) of the amplifier to be transmitted. In one embodiment, the amplifier comprises a fixed gain amplifier and a bypass switch controllable by an amplifier control signal. That is, in one embodiment, the amplifier control signal indicates whether the bypass switch should be open or closed.

In one embodiment, the amplifier comprises a step variable gain amplifier configured to amplify the signal received by the amplifier with one gain of a plurality of settings indicated by the amplifier control signal. That is, in one embodiment, the amplifier control signal indicates one of a plurality of set quantities.

In one embodiment, the amplifier comprises a continuously variable gain amplifier configured to amplify the signal received by the amplifier with a gain proportional to the amplifier control signal. That is, in one embodiment, the amplifier control signal indicates a proportional gain amount.

In some implementations, the controller produces an amplifier control signal (s) based on the quality of service (QoS) metric of the input signal received at the input. In some implementations, a controller generates an amplifier control signal (s) based on a signal received from another controller and thus a signal obtained based on the QoS metric of the received signal. The QoS metric of the received signal is, at least in part, based on the diversity signal (eg, the input received at the input) at the diversity antenna. The QoS metric of the received signal can also be based on the signal received at the primary antenna. In some implementations, the controller produces an amplifier control signal (s) based on the QoS metric of the diversity signal without receiving a signal from another controller. For example, a QoS metric can include signal strength. In another example, the QoS metric can include bit error rate, data throughput, transmission delay, or any other QoS metric.

In some implementations, the controller also controls the downstream amplifier based on the amplifier control signal in block A830 to control the gain of one or more downstream amplifiers coupled to the output via one or more cables. Send a signal.

In particular, the above-mentioned example A regarding the variable gain amplifier can be summarized as follows.

According to some implementations, the present disclosure includes a controller configured to selectively activate one or more of the paths between the input of the first multiplexer and the output of the second multiplexer. Regarding the receiving system. The receiving system also includes multiple passband filters. Each one of the plurality of bandpass filters is provided along the corresponding one of the plurality of paths and is configured to filter the signal received by the bandpass filter into each band. The receiving system further includes a plurality of variable gain amplifiers (VGAs). Each one of the plurality of VGAs is provided along the corresponding one of the plurality of paths and is configured to amplify the signal received in the VGA by the gain controlled by the amplifier control signal received from the controller. Will be done.

In some embodiments, the controller can be configured to selectively activate one or more of a plurality of paths based on the band selection signal received by the controller. In some embodiments, the controller selectively activates one or more of the plurality of paths by transmitting the divider control signal to the first multiplexer and the combiner control signal to the second multiplexer. Can be configured. In some embodiments, the controller selectively transmits one or more of the plurality of paths by transmitting an amplifier enable signal to one or more of the plurality of VGAs each provided along the one or more of the plurality of paths. Can be configured to be active.

In some embodiments, at least one VGA comprises a fixed gain amplifier and a bypass switch controllable by an amplifier control signal. In some embodiments, at least one of the VGAs is a step variable gain amplifier configured to amplify the signal received in the VGA by one gain of a plurality of settings indicated by the amplifier control signal, or a step variable gain amplifier. , The signal received in the VGA may include a continuously variable gain amplifier configured to amplify with a gain proportional to the amplifier control signal. In some embodiments, at least one VGA may include a variable current amplifier configured to amplify the signal received in the amplifier by drawing out the amount of current controlled by the amplifier control signal.

In some embodiments, the amplifier control signal is based on the quality of service metric of the input signal received at the input of the first multiplexer.

In some embodiments, at least one VGA may include a low noise amplifier.

In some embodiments, the receiving system may further include one or more tunable matching circuits provided on one or more of the inputs and outputs.

In some embodiments, the receiving system may further include a transmit line coupled to the output of the second multiplexer and coupled to a downstream module including one or more downstream amplifiers. In some embodiments, the controller can be further configured to generate a downstream amplifier control signal based on the amplifier control signal in order to control the gain of one or more downstream amplifiers. In some embodiments, at least one of the downstream amplifiers can be coupled to a transmit line that does not pass through the downstream bandpass filter. In some embodiments, the number of one or more downstream amplifiers may be less than the number of VGAs.

In some implementations, the present disclosure relates to a radio frequency (RF) module that includes a packaging substrate configured to accept multiple components. RF module In addition, the receiving system mounted on the packaging board is included. The receiving system is a controller configured to selectively activate one or more of the paths between the input of the first multiplexer and the output of the second multiplexer (eg, the input of the RF module and the output of the RF module). including. The receiving system also includes multiple passband filters. Each one of the bandpass filters is provided along the corresponding one of the plurality of paths and is configured to filter the signal received by the bandpass filter into each frequency band. The receiving system further includes a plurality of variable gain amplifiers (VGAs). Each one of the plurality of VGAs is provided along the corresponding one of the plurality of paths and is configured to amplify the signal received in the VGA by the gain controlled by the amplifier control signal received from the controller. ..

In some embodiments, the RF module can be a diversity receiver front-end module (FEM).

In some embodiments, the plurality of routes include an off-module route. The off-module path may include an off-module bandpass filter and one of a plurality of VGAs.

According to some teachings, the present disclosure relates to a radio device comprising a first antenna configured to receive a first radio frequency (RF) signal. The radio device also includes a first front-end module (FEM) that communicates with the first antenna. The first FEM, including the packaging substrate, is configured to accept multiple components. The first FEM further includes a receiving system mounted on a packaging board. The receiving system includes a controller configured to selectively activate one or more of a plurality of paths between the input of the first multiplexer and the output of the second multiplexer. The receiving system also includes multiple passband filters. Each one of the plurality of bandpass filters is provided along the corresponding one of the plurality of paths and is configured to filter the signal received by the bandpass filter into each frequency band. The receiving system further includes a plurality of variable gain amplifiers (VGAs). Each one of the plurality of VGAs is provided along the corresponding one of the plurality of paths and is configured to amplify the signal received in the VGA by the gain controlled by the amplifier control signal received from the controller. .. The wireless device further includes a communication module configured to receive a processed version of the first RF signal from the output over a cable and generate data bits based on the processed version of the first RF signal.

In some embodiments, the radio device further comprises a second antenna configured to receive a second radio frequency (RF) signal and a second FEM communicating with the second antenna. The communication module can be configured to receive a processed version of the second RF signal from the output of the second FEM and generate data bits based on the processed version of the second RF signal.

In some embodiments, the radio includes a communication controller configured to control the gain of the first FEM and one or more downstream amplifiers of the communication module.

Example B: Phase shift component

FIG. 11 shows that, in some embodiments, the diversity receiver configuration B600 may include a DRx module B610 with one or more phase matching components B624a-B624b. The DRx module B610 includes two paths from the input of the DRx module B610 coupled to the antenna 140 and the output of the DRx module B610 coupled to the transmit line 135.

In the DRx module B610 of FIG. 11, the signal divider and the bandpass filter are implemented as the diplexer B611. The diplexer B611 includes an input coupled to the antenna 140, a first output coupled to the first amplifier 314a, and a second output coupled to the second amplifier 314b. At the first output, the diplexer B611 outputs a signal received at the input (eg, from the antenna 140) that has been filtered into the first frequency band. At the second output, the diplexer B611 filters the signal received at the input into the second frequency band and outputs it. In some implementations, the diplexer B611 is configured to divide the input signal received at the input of the DRx module B610 into multiple signals in each of the multiple frequency bands propagating along multiple paths. , Can be replaced with a quad plexer or other multiplexer.

As described herein, each one of the amplifiers 314a-314b is provided along the corresponding one of the paths and is configured to amplify the signal received by the amplifier. The outputs of the amplifiers 314a-314b are supplied through the corresponding phase shift components B624a-B624b before being coupled by the signal coupler B612.

The signal coupler B612 includes a first input coupled to the first phase shift component B624a, a second input coupled to the second phase shift component B624b, and an output coupled to the output of the DRx module B610. The signal at the output of the signal coupler is the sum of the signals of the first input and the second input. That is, the signal combiner is configured to combine signals propagating along a plurality of paths.

When the signal is received by the antenna 140, the signal is filtered by the diplexer B611 into the first frequency band and propagated along the first path through the first amplifier 314a. The filtered and amplified signal is phase-shifted by the first phase shift component B624a and supplied to the first input of the signal coupler B612. In some implementations, the signal coupler B612 or the second amplifier 314b does not prevent the signal from continuing in the opposite direction along the second path through the signal coupler B612. That is, the signal propagates through the second phase shift component B624b, through the second amplifier 314b, and is reflected from the diplexer B611. The reflected signal propagates through the second amplifier 314b, passes through the second phase shift component B624b, and reaches the second input of the signal coupler B612.

If the phase of the initial signal (at the first input of the signal coupler B612) and the phase of the reflected signal (at the second input of the signal coupler B612) are out of phase, the sum of the sums performed by the signal coupler B612 will be the signal combiner. The signal at the output of B612 is weakened. Similarly, when the initial signal and the reflected signal are in phase, the sum performed by the signal combiner B612 enhances the signal at the output of the signal combiner B612. That is, in some implementations, the second phase shift component B624b is configured to phase shift the signal (at least in the first frequency band) so that the initial and reflected signals are at least partially in phase. .. In particular, the second phase shift component B624b is configured to phase shift the signal (at least in the first frequency band) so that the total amplitude of the initial signal and the reflected signal is larger than the amplitude of the initial signal.

For example, the second phase shift component B624b phase shifts the signal passing through the second phase shift component B624b by -1/2 times the phase shift introduced by the reverse propagation via the second amplifier 314b, and causes a diplexer. It can be configured to reflect from B611 and propagate forward through the second amplifier 314b. In another example, the second phase shift component B624b transfers the signal passing through the second phase shift component B624b by only half the difference between 360 degrees and the phase shift introduced by reverse propagation via the second amplifier 314b. It can be phase-shifted, reflected from the diplexer B611, and propagated forward through the second amplifier 314b. In general, the second phase shift component B624b phase shifts the signal passing through the second phase shift component B624b so that the initial signal and the reflected signal have a phase difference of an integral multiple (including zero) of 360 degrees. Can be configured.

In one example, the initial signal may be at 0 degrees (or any other reference phase), propagating backwards through the second amplifier 314b, reflected from the diplexer B611, and propagating forwards through the second amplifier 314b. Thereby, a phase shift of 140 degrees can be introduced. That is, in some implementations, the second phase shift component B624b is configured to phase shift the signal passing through the second phase shift component B624b by −70 degrees. That is, the initial signal is phase-shifted to −70 degrees by the second phase shift component B624b, reverse propagation through the second amplifier 314b, forward propagation through the diplexer B611, and forward propagation through the second amplifier 314b. Is phase-shifted to 70 degrees, and is phase-shifted back to 0 degrees by the second phase shift component B624b.

In some implementations, the second phase shift component B624b is configured to phase shift the signal passing through the second phase shift component B624b by 110 degrees. That is, the initial signal is phase-shifted to 110 degrees by the second phase shift component B624b and is phase-shifted through the second amplifier 314b by reverse propagation, reflection from the diplexer B611, and forward propagation via the second amplifier 314b. It is phase-shifted to 250 degrees and then phase-shifted to 360 degrees by the second phase-shift component B624b.

At the same time, the signal received by the antenna 140 is filtered by the diplexer B611 into the second frequency band and propagated along the second path through the second amplifier 314b. The filtered and amplified signal is phase-shifted by the second phase shift component B624b and supplied to the second input of the signal coupler B612. In some implementations, the signal coupler B612 or the first amplifier 314a does not prevent the signal from continuing in the opposite direction along the first path through the signal coupler B612. That is, the signal propagates through the first phase shift component B624a, through the second amplifier 314a, and is reflected from the diplexer B611. The reflected signal propagates through the first amplifier 314a and the first phase shift component B624a and reaches the first input of the signal coupler B612.

If the phase of the initial signal (at the second input of the signal combiner B612) and the phase of the reflected signal (at the first input of the signal coupler B612) are out of phase, the sum of the sums made by the signal combiner B612 will be the signal combiner. The signal at the output of B612 is weakened, and if the initial signal and the reflected signal are in phase, the sum at the signal combiner B612 makes the signal at the output of the signal coupler B612 stronger. That is, in some implementations, the first phase shift component B624a is configured to phase shift the signal (at least in the second frequency band) so that the initial and reflected signals are at least partially in phase. ..

For example, the first phase shift component B624a phase shifts the signal passing through the first phase shift component B624a by -1/2 times the phase shift introduced by the reverse propagation via the first amplifier 314a, and causes a diplexer. It can be configured to reflect from B611 and propagate forward through the first amplifier 314a. In another example, the first phase shift component B624a has only half the difference between the signal passing through the first phase shift component B624a between 360 degrees and the phase shift introduced by reverse propagation via the first amplifier 314a. It can be phase-shifted, reflected from the diplexer B611, and propagated forward through the first amplifier 314a. Generally, the first phase shift component B624a is configured to phase shift the signal passing through the first phase shift component B624a so that the initial signal and the reflected signal have a phase difference of an integral multiple (including zero) of 360 degrees. can do.

The phase shift components B624a to B624b may be mounted as a passive circuit. In particular, the phase shift components B624a-B624b may be mounted as an LC circuit and may include one or more passive components such as inductors and / or capacitors. These passive components may be connected in parallel and / or in series and may be connected between the output of amplifiers 314a-314b and the input of signal coupler B612, or grounded to the output of amplifiers 314a-314b. It may be connected to the voltage. In some implementations, the phase shift components B624a-B624b are integrated on the same die or in the same package as the amplifiers 314a-314b.

In some implementations (eg, as shown in FIG. 11), the phase shift components B624a-B624b are provided along the path after the amplifiers 314a-314b. That is, any signal attenuation caused by the phase shift components B624a to B624b does not affect the performance of the module B610, such as the signal-to-noise ratio of the output signal. However, in some implementations, the phase shift components B624a-B624b are provided along the path in front of the amplifiers 314a-314b. For example, the phase shift components B624a to B624b may be integrated into an impedance matching component provided between the diplexer B611 and the amplifiers 314a to 314b.

FIG. 12 shows that, in some embodiments, the diversity receiver configuration B640 may include a DRx module B641 with one or more phase matching components B624a-B624b and two-stage amplifiers B614a-B614b. The DRx module B641 of FIG. 12 is the DRx module B610 of FIG. 11 except that the amplifiers 314a-314b of the DRx module B610 of FIG. 11 are replaced by the two-stage amplifiers B614a-B614b of the DRx module B641 of FIG. Substantially similar.

FIG. 13 shows that, in some embodiments, the diversity receiver configuration B680 may include a DRx module B681 with one or more phase matching components B624a-B624b and a coupler post-stage amplifier B615. The DRx module B681 of FIG. 13 is the DRx of FIG. 11 except that the DRx module B681 of FIG. 13 includes a coupler post-stage amplifier B615 provided between the output of the signal coupler B612 and the output of the DRx module B681. Substantially similar to module B610. The coupler post-stage amplifier B615 may be a variable gain amplifier (VGA) and / or a variable current amplifier controlled by a DRx controller (not shown), similarly to the amplifiers 314a to 314b.

FIG. 14 shows that, in some embodiments, the diversity receiver configuration B700 may include a DRx module B710 with tunable phase shift components B724a-B724d. Each of the tunable phase shift components B724a to B724d can be configured to shift the signal passing through the tunable phase shift component by the amount controlled by the phase shift tuning signal received from the DRx controller B702.

The diversity receiver configuration B700 includes a DRx module B710 having an input coupled to the antenna 140 and an output coupled to the transmit line 135. The DRx module B710 includes a certain number of paths between the inputs and outputs of the DRx module B710. In some implementations, the DRx module B710 includes one or more bypass paths (not shown) between inputs and outputs activated by one or more bypass switches controlled by the DRx controller B702.

The DRx module B710 includes a fixed number of multiplexer paths including an input multiplexer B311 and an output multiplexer B312. The multiplexer path includes a certain number of on-module paths (shown). It includes an input multiplexer B311, a bandpass filter B313a-B313d, amplifiers B314a-B314d, tunable phase shift components B724a-B724d, an output multiplexer B312 and a coupler post-stage amplifier B615. The multiplexer path may include one or more off-module paths (not shown) described herein. Again, as described herein, the amplifiers B314a-B314d (including the post-gain amplifier B615) may be variable gain amplifiers and / or variable current amplifiers.

The tunable phase shift components B724a to B724d may include one or more variable components such as inductors and capacitors. These variable components may be connected in parallel and / or in series, and may be connected between the output of amplifiers B314a-B314d and the input of output multiplexer B312, or the output and ground voltage of amplifiers B314a-B314d. You may connect to.

The DRx controller B702 is configured to selectively activate one or more of the plurality of paths between the input and the output. In some implementations, the DRx controller B702 is configured to selectively activate one or more of the plurality of paths based on a band selection signal received by the DRx controller B702 (eg, from a communication controller). Will be done. The DRx controller B702 may selectively activate the path, for example, by enabling or disabling amplifiers B314a-B314d, by controlling multiplexers B311 and B312, or via other mechanisms described herein. can.

In some implementations, the DRx controller B702 is configured to tune the tunable phase shift components B724a-B724d. In some implementations, the DRx controller B702 tunes the tunable phase shift components B724a-B724d based on the band selection signal. For example, the DRx controller B702 tunes the tunable phase shift components B724a to B724d based on a look-up table that associates a plurality of frequency bands (or a plurality of sets of frequency bands) indicated by a band selection signal with tuning parameters. Can be done. Therefore, the DRx controller B702 sends a phase shift tuning signal in response to a band selection signal in order to tune the tunable phase shift component (or its variable component) according to the tuning parameter. It can be transmitted to the parts B724a to B724d.

The DRx controller B702 can be tuned with the tunable phase shift components B724a to B724d so that the out-of-band reflected signal is in phase with the out-of-band initial signal in the output multiplexer B312. For example, a first path corresponding to the first frequency band (passing through the first amplifier B314a), a second path corresponding to the second frequency band (passing through the second amplifier B314b), and (passing through the third amplifier B314c). When the band selection signal indicates that the third path is activated, the DRx controller B702 (1) is an initial signal for the signal propagating along the second path (in the second frequency band). (2) Along the third path so that the reflected signal that propagates in the reverse direction along the first path, is reflected from the bandpass filter B313a, and propagates in the forward direction through the first path is in phase. For the propagating signal (in the third frequency band), the initial signal and the reflected signal that propagates in the reverse direction along the first path, is reflected from the bandpass filter B313a, and propagates forward through the first path. The first tunable phase shift component B724a can be tuned so that and are in phase with each other.

The DRx controller B702 can tune the first tunable phase shift component B724a so that the second frequency band is phase-shifted by a different amount from the third frequency band. For example, the signal in the second frequency band is phase-shifted by 140 degrees by the reverse propagation through the first amplifier B314a, the reflection from the bandpass filter B313a, and the forward propagation through the first amplifier B314b, and the third When the frequency band is phase-shifted by 130 degrees, the DRx controller B702 phase-shifts the second frequency band by -70 degrees (or 110 degrees) and the third frequency band by -65 degrees (or 115 degrees). The first tunable phase shift component B724a can be tuned so as to shift the phase only by).

The DRx controller B702 can similarly tune the second phase shift component B724b and the third phase shift component B724c.

In another example, when the band selection signal indicates that the first path, the second path, and the fourth path (through the fourth amplifier B314d) are activated, the DRx controller B702 (1) first. For a signal propagating along two paths (in the second frequency band), the initial signal and the signal propagating in the opposite direction along the first path, reflected from the bandpass filter B313a, and sequentially passed through the first path. For the signal propagating along the 4th path (in the 4th frequency band), the initial signal and the reverse propagating along the 1st path so that the reflected signal propagating in the direction becomes in phase. Then, the first tunable phase shift component B724a can be tuned so that the reflected signal reflected from the band-passing filter B313a and propagating in the forward direction through the first path is in phase.

The DRx controller B702 can tune the variable components of the tunable phase shift components B724a to B724d so as to have different values for different plurality of sets of frequency bands.

In some implementations, the tunable phase shift components B724a-B724d are replaced by fixed phase shift components that are not tuneable or are not controlled by the DRx controller B702. Each one of the phase shift components provided along the corresponding one of the paths corresponding to one frequency band is initially phase-shifted along the corresponding other paths by phase-shifting each of the other frequency bands. The signal and the reflected signal that propagates in the reverse direction along the one of the paths, is reflected from the corresponding bandpass filter, and propagates in the forward direction through the one of the paths are configured to be in phase. good.

For example, the third phase shift component B724c is fixed and (1) propagates in the opposite direction along the third path with the initial signal of the first frequency (propagating along the first path) and passes through the third band. The first frequency band is phase-shifted so that the reflected signal reflected from the filter B313c and propagating forward through the third path is in phase, and (2) the second frequency (propagating along the second path). The second frequency band is set so that the initial signal of the above and the reflected signal propagating in the reverse direction along the third path, reflected from the third band passing filter B313c, and propagating forward through the third path are in phase with each other. Phase-shifted, (3) the initial signal of the 4th frequency (propagating along the 4th path) and the reverse propagation along the 3rd path, reflected from the 3rd band pass filter B313c, and passing through the 3rd path. The fourth frequency band is configured to be phase-shifted so that the reflected signal propagating in the forward direction through the signal is in phase. Other phase shift components may be fixed and set in the same manner.

That is, the DRx module B710 includes a DRx controller B702 configured to selectively activate one or more of the plurality of paths between the input of the DRx module B710 and the output of the DRx module B710. The DRx module B710 further includes a plurality of amplifiers B314a to B314d. Each one of the plurality of amplifiers B314a to B314d is provided along the corresponding one of the plurality of paths and is configured to amplify the signal received by the amplifier. The DRx module further includes a plurality of phase shift components B724a to B724d. Each one of the plurality of phase shift components B724a to B724d is provided along the corresponding one of the plurality of paths, and is configured to phase shift the signal passing through the phase shift component.

In some implementations, the first phase shift component B724a is provided along the first path corresponding to the first frequency band (eg, the frequency band of the first band pass filter B313a) and passes through the first phase shift component B724a. By phase-shifting the second frequency band of the signal to be processed (for example, the frequency band of the second band passing filter B313b), the initial signal propagating along the second path corresponding to the second frequency band and the initial signal along the first path. It is configured so that the reflected signal propagating is at least partially in phase with each other.

In some implementations, the first phase shift component B724a is further phase-shifted by phase shifting the third frequency band of the signal passing through the first phase shift component B724a (eg, the frequency band of the third band pass filter B313c). The initial signal propagating along the third path corresponding to the three frequency bands and the reflected signal propagating along the first path are configured to be at least partially in phase.

Similarly, in some implementations, the second phase shift component B724b provided along the second path is first phase-shifted by phase-shifting the first frequency band of the signal passing through the second phase shift component B724b. The initial signal propagating along the path and the reflected signal propagating along the second path are configured to be at least partially in phase.

FIG. 17 shows that, in some embodiments, the diversity receiver configuration BC1000 may include a DRx module BC1010 with tunable impedance matching components provided at the inputs and outputs. The DRx module BC1010 may include one or more tunable impedance matching components provided on one or more of the inputs and outputs of the DRx module BC1010. In particular, the DRx module BC1010 may include an input tunable impedance matching component BC1016 provided at the input of the DRx module BC1010, an output tunable impedance matching component BC1017 provided at the output of the DRx module BC1010, or both.

It is unlikely that all of the multiple frequency bands received by the same diversity antenna 140 will be ideal impedance matching. In order to match each frequency band using a compact matching circuit, a tunable input impedance matching component BC1016 is mounted on the input of the DRx module BC1010 (for example, based on the band selection signal from the communication controller) DRx controller BC1002. Can be controlled by. For example, the DRx controller BC1002 may tune the tunable input impedance matching component BC1016 based on a look-up table that associates multiple frequency bands (or multiple sets of frequency bands) indicated by the band selection signal with tuning parameters. can. Therefore, the DRx controller BC1002 uses the tunable input impedance matching component BC1016 to tune the input impedance tuning signal in response to the band selection signal in order to tune the tunable input impedance matching component (or its variable component) according to the tuning parameters. Can be sent.

The tunable input impedance matching component BC1016 may be a tunable T-type circuit, a tunable π-type circuit, or any other tunable matching circuit. In particular, the tunable input impedance matching component BC1016 may include one or more variable components such as resistors, inductors and capacitors. These variable components may be connected in parallel and / or in series and may be connected between the input of the DRx module BC1010 and the input of the first multiplexer BC311 or the input of the DRx module BC1010 and the ground voltage. You may connect between.

Similarly, with only one transmit line 135 (or at least some transmit lines) carrying signals in many frequency bands, it is unlikely that the entire multiple frequency band will be ideal impedance matching. In order to match each frequency band using a compact matching circuit, the tunable output impedance matching component BC1017 is mounted on the output of the DRx module BC1010 (for example, based on the band selection signal from the communication controller) DRx controller BC1002. Can be controlled by. For example, the DRx controller BC1002 may tune the tunable output impedance matching component BC1017 based on a look-up table that associates multiple frequency bands (or multiple sets of frequency bands) indicated by the band selection signal with tuning parameters. can. Therefore, in order to tune the tunable output impedance matching component (or its variable component) according to the tuning parameters, the DRx controller BC1002 can tune the output impedance tuning signal in response to the band selection signal. Output impedance matching component BC1017 Can be sent to.

The tunable output impedance matching component BC1017 may be a tunable T-type circuit, a tunable π-type circuit, or any other tunable matching circuit. In particular, the tunable output impedance matching component BC1017 may include one or more variable components such as resistors, inductors and capacitors. These variable components may be connected in parallel and / or in series, and may be connected between the output of the second multiplexer BC312 and the output of the DRx module BC1010, or the output of the second multiplexer BC312 and the ground voltage. You may connect to.

FIG. 18 shows that, in some embodiments, the diversity receiver configuration BC1100 may include a DRx module BC1110 with multi-tunable components. The diversity receiver configuration BC1100 includes a DRx module BC1110 having an input coupled to an antenna 140 and an output coupled to a transmit line 135. The DRx module BC1110 includes a certain number of paths between the inputs and outputs of the DRx module BC1110. In some implementations, the DRx module BC1110 includes one or more bypass paths (not shown) between the input and the output activated by one or more bypass switches controlled by the DRx controller BC1102.

The DRx module BC1110 includes a fixed number of multiplexer paths including an input multiplexer BC311 and an output multiplexer BC312. The multiplexer path includes a certain number of on-module paths (shown). This includes the tunable input impedance matching component BC1016, the input multiplexer BC311 and the bandpass filters BC313a to BC313d, the tunable impedance matching components BC934a to BC934d, the amplifiers BC314a to BC314d, the tunable phase shift components BC724a to BC724d, and the output multiplexer BC312. Includes tunable output impedance matching component BC1017. The multiplexer path may include one or more off-module paths (not shown) described herein. Again, as described herein, the amplifiers BC314a-BC314d can be variable gain amplifiers and / or variable current amplifiers.

The DRx controller BC1102 is configured to selectively activate one or more of a plurality of paths between inputs and outputs. In some implementations, the DRx controller BC1102 is configured to selectively activate one or more of a plurality of paths based on the band selection signal received by the DRx controller BC1102 (eg, from a communication controller). .. The DRx controller BC902 may selectively activate the path, for example, by enabling or disabling the amplifiers BC314a-BC314d, by controlling the multiplexers BC311 and BC312, or via other mechanisms described herein. can. In some implementations, the DRx controllers BC1102 are configured to transmit amplifier control signals to one or more amplifiers BC314a-BC314d, each provided along one or more activated paths. The amplifier control signal controls the gain (or current) of the amplifier to be transmitted.

The DRx controller BC1102 is configured to tune one or more of the tunable input impedance matching component BC1016, the tunable impedance matching component BC934a to BC934d, the tunable phase shift component BC724a to BC724d, and the tunable output impedance matching component BC1017. .. For example, the DRx controller BC1102 can tune a tunable component based on a look-up table that associates a plurality of frequency bands (or a plurality of sets of frequency bands) indicated by a band selection signal with tuning parameters. Therefore, the DRx controller BC1101 transmits a tuning signal to the tunable component (active path) in response to the band selection signal in order to tune the tunable component (or its variable component) according to the tuning parameter. Can be done. In some implementations, the DRx controller BC1102 tunes tunable components, at least in part, based on the amplifier control signal to control the gain and / or current of the amplifiers BC314a-BC314d. In various implementations, one or more of the tunable components may be replaced by fixed components not controlled by the DRx controller BC1102.

Note that tuning one of the tunable components can affect the tuning of other tunable components. That is, the tuning parameters in the look-up table for the first tunable component may be based on the tuning parameters for the second tunable component. For example, the tuning parameters for the tunable phase shift components BC724a to BC724d may be based on the tuning parameters for the tunable impedance matching components BC934a to BC934d. In another example, the tuning parameters for the tunable impedance matching component BC934a-BC934d may be based on the tuning parameters for the tunable input impedance matching component BC1016.

FIG. 19 shows an embodiment of a flowchart representation of a method of processing an RF signal. In some implementations (and as detailed below, as an example), method BC1200 is performed by a controller such as the DRx controller BC1102 in FIG. In some implementations, method BC1200 is performed by processing logic that includes hardware, firmware, software, or a combination thereof. In some implementations, method BC1200 is performed by a processor that executes code stored on a non-temporary computer-readable medium (eg, memory). Briefly, method BC1200 includes receiving a band selection signal and routing the received RF signal to one or more tuned paths to process the received RF signal.

The method BC1200 starts from the control receiving the band selection signal in the block BC1210. The controller may receive a band selection signal from another controller, or may receive a band selection signal from a cellular base station or other external source. The band selection signal can indicate one or more frequency bands in which the radio device sends and receives RF signals. In some implementations, the band selection signal indicates a set of frequency bands for carrier aggregation communication.

At block BC1220, the controller selectively activates one or more paths of the diversity receiver (DRx) module based on the band selection signal. As described herein, a DRx module shall be between one or more inputs (coupled to one or more antennas) and one or more outputs (coupled to one or more transmit lines) of the DRx module. It may contain a certain number of routes. The route may include a bypass route and a multiplexer route. The multiplexer path may include an on-module path and an off-module path.

The controller divides one or more of a plurality of paths by enabling or disabling one or more of the paths, for example, by opening or closing one or more bypass switches, and by enabling or disabling an amplifier provided along the path via an amplifier enable signal. It can be selectively activated by the control of one or more multiplexers via control signals and / or combiner control signals, or through other mechanisms. For example, the controller can open and close a switch along the path, or set the gain of an amplifier along the path to substantially zero.

At block BC1230, the controller sends a tuning signal to one or more tunable components provided along one or more activated paths. The tunable components are a tunable impedance matching component provided at the input of the DRx module, a plurality of tunable impedance matching components provided along a plurality of paths, and each provided along the plurality of paths. It may include one or more of the plurality of tuneable phase shift components provided and the tunable output impedance matching component provided at the output of the DRx module.

The controller can tune the tunable component based on a look-up table that associates a plurality of frequency bands (or a plurality of sets of frequency bands) indicated by the band selection signal with tuning parameters. Therefore, the DRx controller sends a tuning signal to the tunable component (in the active path) in response to the band selection signal in order to tune the tunable component (or its variable component) according to the tuning parameters. Can be done. In some implementations, the controller is at least partially based on the amplifier control signal to control the gain and / or current of one or more amplifiers, each provided along one or more activated paths. Tune the tunable parts.

In particular, the above-mentioned example B regarding the phase shift component can be summarized as follows.

According to some embodiments, the present disclosure relates to a receiving system, which selectively activates one or more of a plurality of paths between an input of the receiving system and an output of the receiving system. Includes configured controls. The receiving system also includes multiple amplifiers. Each one of the plurality of amplifiers is provided along the corresponding one of the plurality of paths and is configured to amplify the signal received by the amplifier. The receiving system also includes a plurality of phase shift components. Each one of the plurality of phase shift components is provided along the corresponding one of the plurality of paths, and is configured to phase shift the signal passing through the phase shift component.

In some embodiments, the first phase shift component of the plurality of phase shift components provided along the first path of the plurality of paths corresponding to the first frequency band is a signal passing through the first phase shift component. By phase-shifting the second frequency band of, the second initial signal propagating along the second path of the plurality of paths corresponding to the second frequency band and the second reflection propagating along the first path. It can be configured so that the signal is at least partially in phase.

In some embodiments, the second phase shift component of the plurality of phase shift components provided along the second path phase shifts the first frequency band of the signal passing through the second phase shift component. , The first initial signal propagating along the first path and the first reflected signal propagating along the second path can be configured to be at least partially in phase.

In some embodiments, the first phase shift component further phase shifts the third frequency band of the signal passing through the first phase shift component to provide a third of a plurality of paths corresponding to the third frequency band. The third initial signal propagating along the path and the third reflected signal propagating along the first path can be configured to be at least partially in phase.

In some embodiments, the first phase shift component phase shifts the second frequency band of the signal passing through the first phase shift component so that the second initial signal and the second reflected signal are 360 degrees. It can be configured to have a phase difference of an integral multiple.

In some embodiments, the receiving system further comprises a multiplexer configured to divide the input signal received at the input into multiple signals in each of a plurality of frequency bands propagating along a plurality of paths. obtain. In some embodiments, the receiving system may further include a signal combiner configured to combine signals propagating along multiple paths. In some embodiments, the receiving system may further include a signal coupler and a coupler post-stage amplifier provided between the outputs. The coupler post-stage amplifier is configured to amplify the signal received by the coupler post-stage amplifier. In some embodiments, each one of the plurality of phase shift components can be provided between the signal coupler and the corresponding one of the plurality of amplifiers. In some embodiments, at least one of the plurality of amplifiers may include a two-stage amplifier.

In some embodiments, at least one of the plurality of phase shift components may be a passive circuit. In some embodiments, at least one of the plurality of phase shift components may be an LC circuit.

In some embodiments, at least one of the plurality of phase shift components may include a tunable phase shift component. This phase shifts the signal passing through the tunable phase shift component by the amount controlled by the phase shift tuning signal received from the controller.

In some embodiments, the receiving system may further include multiple impedance matching components. Each one of the impedance matching components is provided along the corresponding one of the plurality of paths so as to reduce at least one of the corresponding out-of-band noise figures or out-of-band gains of the corresponding one of the plurality of paths. It is composed.

In some implementations, the present disclosure relates to a radio frequency (RF) module that includes a packaging substrate configured to accept multiple components. RF module In addition, the receiving system mounted on the packaging board is included. The receiving system includes a controller configured to selectively activate one or more of the paths between the input of the receiving system and the output of the receiving system. The receiving system also includes multiple amplifiers. Each one of the plurality of amplifiers is provided along the corresponding one of the plurality of paths and is configured to amplify the signal received by the amplifier. The receiving system also includes a plurality of phase shift components. Each one of the plurality of phase shift components is provided along the corresponding one of the plurality of paths, and is configured to phase shift the signal passing through the phase shift component.

In some embodiments, the RF module can be a diversity receiver front-end module (FEM).

In some embodiments, the first phase shift component of the plurality of phase shift components provided along the first path of the plurality of paths corresponding to the first frequency band is a signal passing through the first phase shift component. By phase-shifting the second frequency band of, the second initial signal propagating in the second path of the plurality of paths corresponding to the second frequency band and the second reflected signal propagating along the first path are transferred. It is configured to be at least partially in phase.

According to some teachings, the present disclosure relates to a radio device comprising a first antenna configured to receive a first radio frequency (RF) signal. The radio device also includes a first front-end module (FEM) that communicates with the first antenna. The first FEM, including the packaging substrate, is configured to accept multiple components. The first FEM further includes a receiving system mounted on a packaging board. The receiving system includes a controller configured to selectively activate one or more of the paths between the input of the receiving system and the output of the receiving system. The receiving system also includes multiple amplifiers. Each one of the plurality of amplifiers is provided along the corresponding one of the plurality of paths and is configured to amplify the signal received by the amplifier. The receiving system also includes a plurality of phase shift components. Each one of the plurality of phase shift components is provided along the corresponding one of the plurality of paths, and is configured to phase shift the signal passing through the phase shift component. The radio device further includes a transmitter / receiver configured to receive a processed version of the first RF signal from the output over the transmit line and generate data bits based on the processed version of the first RF signal.

In some embodiments, the radio device may further include a second antenna configured to receive a second radio frequency (RF) signal and a second FEM communicating with the first antenna. The transmitter / receiver is configured to receive a processed version of the second RF signal from the output of the second FEM and generate data bits based on the processed version of the second RF signal.

In some embodiments, the first phase shift component of the plurality of phase shift components provided along the first path of the plurality of paths corresponding to the first frequency band is a signal passing through the first phase shift component. By phase-shifting the second frequency band of, the second initial signal propagating along the second path of the plurality of paths corresponding to the second frequency band and the second reflected signal propagating along the first path. And are configured to be at least partially in phase.

Example C: Impedance shift component

FIG. 15 shows that, in some embodiments, the diversity receiver configuration C800 may include a DRx module C810 with one or more impedance matching components C834a-C834b. The DRx module C810 includes two paths from the input of the DRx module C810 coupled to the antenna 140 to the output of the DRx module C810 coupled to the transmit line 135.

In the DRx module C810 of FIG. 15 (as in the DRx module B610 of FIG. 11), the signal divider and bandpass filter are implemented as the diplexer C611. The diplexer C611 includes an input coupled to an antenna, a first output coupled to a first impedance matching component C834a, and a second output coupled to a second impedance matching component C834b. At the first output, the diplexer C611 outputs the signal received at the input filtered into the first frequency band (eg, from the antenna 140). At the second output, the diplexer C611 outputs the signal received at the input filtered to the second frequency band.

Impedance matching components C834a to C634d are provided between the diplexer C611 and the amplifiers C314a to C314b, respectively. As described herein, each one of the amplifiers C314a-C314b is provided along the corresponding one of the paths and is configured to amplify the signal received by the amplifier. The outputs of the amplifiers C314a to C314b are supplied to the signal coupler C612.

The signal coupler C612 includes a first input coupled to the first amplifier C314a, a second input coupled to the second amplifier C314b, and an output coupled to the output of the DRx module C610. The signal at the output of the signal coupler is the sum of the signals of the first input and the second input.

When the signal is received by the antenna 140, the signal is filtered by the diplexer C611 into the first frequency band and propagated along the first path through the first amplifier C314a. Similarly, the signal is filtered by the diplexer C611 into the second frequency band and propagated along a second path through the second amplifier C314b.

Each path can be characterized by noise figure and gain. The noise figure of each path represents the deterioration of the signal-to-noise ratio (SNR) caused by the amplifier and impedance matching component provided along the path. In particular, the noise figure of each path is the decibel (dB) difference between the SNR at the input of the impedance matching components C834a to C834b and the SNR at the output of the amplifiers C314a to C314b. That is, the noise figure is a measure of the difference between the noise output of an amplifier with the same gain and the noise output of an "ideal" amplifier (no noise). Similarly, the gain for each path represents the gain provided by the amplifier and impedance matching components provided along that path.

The noise figure and gain of each path can be different for different frequency bands. For example, the first path may have an in-band noise figure and an in-band gain for the first frequency band and an out-of-band noise figure and an out-of-band gain for the second frequency band. Similarly, the second path may have an in-band noise figure and in-band gain for the second frequency band and an out-of-band noise figure and out-of-band gain for the first frequency band.

The DRx module C810 can also be characterized by different noise figures and gains for different frequency bands. In particular, the noise figure of the DRx module C810 is a dB difference between the SNR at the input of the DRx module C810 and the SNR at the output of the DRx module C810.

The noise figure and gain of each path (in each frequency band) may depend, at least in part, on the impedance (in each frequency band) of the impedance matching components C834a-C834b. Therefore, it may be advantageous for the impedance of the impedance matching components C834a to C834b to minimize the in-band noise figure of each path and / or maximize the in-band gain of each path. That is, in some implementations, each of the impedance matching components C834a-C834b reduces the in-band noise figure of its corresponding path (compared to a DRx module lacking such impedance matching components C834a-C834b) and / or its correspondence. It is configured to increase the in-band gain of the path.

Since the signal propagating along the two paths is coupled by the signal combiner C612, the out-of-band noise generated or amplified by the amplifier can have a negative effect on the coupled signal. For example, the out-of-band noise generated or amplified by the first amplifier C314a can increase the noise figure of the DRx module C810 at the second frequency. Therefore, it may be advantageous for the impedance of the impedance matching components C834a to C834b to minimize the out-of-band noise figure of each path and / or to minimize the out-of-band gain of each path. That is, in some implementations, each of the impedance matching components C834a-C834b reduces the out-of-band noise figure of its corresponding path (compared to a DRx module lacking such impedance matching components C834a-C834b) and / or its correspondence. It is configured to reduce the out-of-band gain of the path.

Impedance matching components C834a to C834b may be mounted as a passive circuit. In particular, the impedance matching components C834a-C834b may be mounted as an RLC circuit and may include one or more passive components such as resistors, inductors and / or capacitors. Passive components may be connected in parallel and / or in series, and may be connected between the output of the diplexer C611 and the inputs of the amplifiers C314a-C314b, or between the output of the diplexer C611 and the ground voltage. You can do it. In some implementations, the impedance matching components C834a-C834b are integrated into the same die or in the same package as the amplifiers C314a-C314b.

As mentioned here, for a particular path, the impedance of the impedance matching components C834a-C834b minimizes the in-band noise figure, maximizes the in-band gain, minimizes the out-of-band noise figure, and out-of-band gain. It can be advantageous to try to minimize. With only two degrees of freedom (eg impedance in the first frequency band and impedance in the second frequency band) or various other constraints (eg number of parts, cost, die space) to achieve all four goals. ), It is a difficult task to design the impedance matching components C834a to C834b. Therefore, in some implementations, the in-band metric of the in-band noise figure minus the in-band gain is minimized, and the out-of-band metric of the out-of-band noise figure plus the out-of-band gain is minimized. .. Designing impedance matching components C834a-C834b to achieve both of these goals with various constraints can still be a challenge. That is, in some implementations, the in-band metric is minimized under a set of constraints, and the out-of-band metric is the set of constraints and the in-band metric is a threshold (eg 0.1 dB, 0.2 dB). , 0.5 dB or any other value) and is minimized with the additional constraint of not increasing. Therefore, the impedance matching component is the in-band metric of the in-band noise figure minus the in-band gain, which is the threshold of the in-band metric minimum value, for example, the in-band metric minimum value that can be arbitrarily constrained. It is configured to be reduced to within the amount. The impedance matching component also increases the out-of-band metric, which is the out-of-band noise figure plus the out-of-band gain, so that the in-band constraint out-of-band minimum, such as the in-band metric, does not increase beyond the threshold. It is configured to reduce to the minimum out-of-band metric possible with the additional constraint of. In some implementations, the composite metric, which is the in-band metric (weighted by the in-band factor) plus the out-of-band metric (weighted by the out-of-band factor), is minimized with arbitrary constraints. ..

That is, in some implementations, each of the impedance matching components C834a-C834b reduces the in-band metric (in-band noise figure minus in-band gain) of its corresponding path (eg, in-band noise figure). It is configured to increase or decrease the in-band gain. In some implementations, each of the impedance matching components C834a-C834b further reduces the out-of-band metric (out-of-band noise figure plus out-of-band gain) of its corresponding path (eg, reducing the out-of-band noise figure). , By reducing the out-of-band gain, or both).

In some implementations, by reducing the out-of-band metric, the impedance matching components C834a-C834b in one or more of the frequency bands, without substantially increasing the noise figure in the other frequency bands, the DRx module C810. Reduces the noise figure of.

FIG. 16 shows that, in some embodiments, the diversity receiver configuration C900 may include a DRx module C910 with tunable impedance matching components C934a-C934d. The tunable impedance matching components C934a to C934d can each be configured to present the impedance controlled by the impedance tuning signal received from the DRx controller C902.

The diversity receiver configuration C900 includes a DRx module C910 having an input coupled to an antenna 140 and an output coupled to a transmit line 135. The DRx module C910 includes a certain number of paths between the inputs and outputs of the DRx module C910. In some implementations, the DRx module C910 includes one or more bypass paths (not shown) between inputs and outputs activated by one or more bypass switches controlled by the DRx controller C902.

The DRx module C910 includes a fixed number of multiplexer paths including an input multiplexer C311 and an output multiplexer 312. The multiplexer path includes a fixed number of on-module paths (shown) including an input multiplexer C311, a bandpass filter C313a-C313d, a tunable impedance matching component C934a-C934d, amplifiers C314a-C314d and an output multiplexer C312. The multiplexer path may include one or more off-module paths (not shown) described herein. Again, as described herein, the amplifiers C314a-C314d may be variable gain amplifiers and / or variable current amplifiers.

The tunable impedance matching components C934a to C934b can be a tunable T-type circuit, a tunable π-type circuit, or any other tunable matching circuit. The tunable impedance matching components C934a-C934d may include one or more variable components such as resistors, inductors and capacitors. These variable components may be connected in parallel and / or in series, and may be connected between the output of the input multiplexer C311 and the input of the amplifiers C314a-C314d, or the output of the input multiplexer C311 and the ground voltage. You may connect between.

The DRx controller C902 is configured to selectively activate one or more of a plurality of paths between inputs and outputs. In some implementations, the DRx controller C902 is configured to selectively activate one or more of a plurality of paths based on the band selection signal received by the DRx controller C902 (eg, from a communication controller). .. The DRx controller C902 may selectively activate the path, for example, by enabling or disabling amplifiers C314a-C314d, by controlling multiplexers C311 and C312, or via other mechanisms described herein. can.

In some implementations, the DRx controller C902 is configured to tune the tunable impedance matching components C934a-C934d. In some implementations, the DRx controller C702 tunes the tunable impedance matching components C934a-C934d based on the band selection signal. For example, the DRx controller C902 tunes the tunable impedance matching components C934a to C934d based on a look-up table that associates a plurality of frequency bands (or a plurality of sets of frequency bands) indicated by a band selection signal with tuning parameters. Can be done. Therefore, in order to tune the tunable impedance matching component (or its variable component) according to the tuning parameters, the DRx controller C902 responds to the band selection signal by sending the impedance tuning signal to the tunable impedance of each active path. It can be transmitted to the matching parts C934a to C934d.

In some implementations, the DRx controller C902 tunes the tunable impedance matching components C934a-C934d at least partially based on the amplifier control signal transmitted to control the gain and / or current of the amplifiers C314a-C314d. do.

In some implementations, the DRx controller C902 minimizes (or reduces) the in-band noise figure and maximizes in-band gain by tuning the tunable impedance matching components C934a-C934d for each active path. (Or increased) so that the out-of-band noise figure for each of the other active paths is minimized (or reduced) and / or the out-of-band gain for each of the other active paths is minimized (or reduced). It is composed.

In some implementations, the DRx controller C902 tunes the tunable impedance matching components C934a-C934d of each active path to the in-band metric (from the in-band noise figure) for each of the other active paths. The out-of-band gain (minus the in-band gain) is minimized (or reduced), and the out-of-band metric (out-of-band noise figure plus out-of-band gain) is minimized (or reduced).

In some implementations, the DRx controller C902 tunes the tunable impedance matching components C934a-C934d for each active path to minimize (or reduce) in-band metrics with a set of constraints. Out-of-band metrics for each of the other active routes increase beyond the set of constraints and in-band metrics exceed the threshold (eg 0.1 dB, 0.2 dB, 0.5 dB or any other value). It is minimized (or reduced) under the additional constraint that it should not be done.

That is, in some implementations, the DRx controller C902 tunes the tunable impedance matching components C934a-C934d of each active path so that the tunable impedance matching component obtains in-band gain from the in-band noise figure. The negative in-band metric is configured to be reduced to within the in-band metric minimum, eg, the limit of the in-band metric minimum that can be arbitrarily constrained. The DRx controller C902 further tunes the tunable impedance matching components C934a to C934d of each active path so that the tunable impedance matching component is the out-of-band noise figure plus the out-of-band gain. Reduce the metric to the minimum out-of-band metric possible, with additional constraints, such as the in-band constraint out-of-band minimum, for example, to prevent the in-band metric from increasing beyond the threshold. It is configured as follows.

In some implementations, the DRx controller C902 tunes the tunable impedance matching components C934a-C934d for each active path to the in-band metric (weighted by the in-band factor) (other active). The composite metric, which is the sum of the out-of-band metric for other active routes (weighted by the out-of-band factor for each route), is configured to be minimized (or reduced) under any constraint. Will be done.

The DRx controller C902 can tune the variable components of the tunable impedance matching components C934a to C934d to have different values for different sets of frequency bands.

In some implementations, the tunable impedance matching components C934a-C934d may be replaced by fixed impedance matching components that are neither tuneable nor controllable by the DRx controller C902. Each one of the impedance matching components provided along the corresponding one of the paths corresponding to one frequency band is configured to reduce (or minimize) the in-band metric for that one frequency band. And may be configured to reduce (or minimize) out-of-band metrics for one or more of the other frequency bands (eg, each of the other frequency bands).

For example, the third impedance matching component C934c is fixed and (1) reduces the in-band metric for the third frequency band and (2) reduces the out-of-band metric for the first frequency band. It is configured to (3) reduce the out-of-band metric for the second frequency band and / or (4) reduce the out-of-band metric for the fourth frequency band. Other impedance matching components may be fixed and configured in the same manner.

That is, the DRx module C910 includes a DRx controller C902 configured to selectively route a plurality of paths between the input of the DRx module C910 and the output of the DRx module C910. The DRx module C910 further includes a plurality of amplifiers C314a to C314d. Each one of the plurality of amplifiers C314a to C314d is provided along the corresponding one of the plurality of paths and is configured to amplify the signal received by the amplifier. The DRx module further includes a plurality of impedance matching components C934a to C934d. Each one of the plurality of phase shift components C934a to C934d is provided along the corresponding one of the plurality of paths to reduce at least one of the one out-of-band noise figure or the out-of-band gain of the plurality of paths. It is configured to do.

In some implementations, the first impedance matching component C934a is provided along the first path corresponding to the first frequency band (eg, the frequency band of the first band pass filter C313a) and corresponds to the second path. It is configured to reduce at least one of the out-of-band noise figures or out-of-band gains for the frequency band (eg, the frequency band of the second bandpass filter C313b).

In some implementations, the first impedance matching component C934a also further has at least an out-of-band noise figure or out-of-band gain for a third frequency band corresponding to the third path (eg, the frequency band of the third bandpass filter C313c). It is configured to reduce one.

Similarly, in some implementations, the second impedance matching component C934b provided along the second path reduces at least one of the out-of-band noise figures or out-of-band gains for the first frequency band. It is composed.

FIG. 17 shows that, in some embodiments, the diversity receiver configuration BC1000 may include a DRx module BC1010 with tunable impedance matching components provided at the inputs and outputs. The DRx module BC1010 may include one or more tunable impedance matching components provided on one or more of the inputs and outputs of the DRx module BC1010. In particular, the DRx module BC1010 may include an input tunable impedance matching component BC1016 provided at the input of the DRx module BC1010, an output tunable impedance matching component BC1017 provided at the output of the DRx module BC1010, or both.

It is unlikely that all of the multiple frequency bands received by the same diversity antenna 140 will be ideal impedance matching. In order to match each frequency band using a compact matching circuit, a tunable input impedance matching component BC1016 is mounted on the input of the DRx module BC1010 (for example, based on the band selection signal from the communication controller) DRx controller BC1002. Can be controlled by. For example, the DRx controller BC1002 may tune the tunable input impedance matching component BC1016 based on a look-up table that associates multiple frequency bands (or multiple sets of frequency bands) indicated by the band selection signal with tuning parameters. can. Therefore, the DRx controller BC1002 uses the tunable input impedance matching component BC1016 to tune the input impedance tuning signal in response to the band selection signal in order to tune the tunable input impedance matching component (or its variable component) according to the tuning parameters. Can be sent.

The tunable input impedance matching component BC1016 may be a tunable T-type circuit, a tunable π-type circuit, or any other tunable matching circuit. In particular, the tunable input impedance matching component BC1016 may include one or more variable components such as resistors, inductors and capacitors. These variable components may be connected in parallel and / or in series and may be connected between the input of the DRx module BC1010 and the input of the first multiplexer BC311 or the input of the DRx module BC1010 and the ground voltage. You may connect between.

Similarly, with only one transmit line 135 (or at least some transmit lines) carrying signals in many frequency bands, it is unlikely that the entire multiple frequency band will be ideal impedance matching. In order to match each frequency band using a compact matching circuit, the tunable output impedance matching component BC1017 is mounted on the output of the DRx module BC1010 (for example, based on the band selection signal from the communication controller) DRx controller BC1002. Can be controlled by. For example, the DRx controller BC1002 may tune the tunable output impedance matching component BC1017 based on a look-up table that associates multiple frequency bands (or multiple sets of frequency bands) indicated by the band selection signal with tuning parameters. can. Therefore, in order to tune the tunable output impedance matching component (or its variable component) according to the tuning parameters, the DRx controller BC1002 responds to the band selection signal and tunes the output impedance tuning signal. Output impedance matching component BC1017 Can be sent to.

The tunable output impedance matching component BC1017 may be a tunable T-type circuit, a tunable π-type circuit, or any other tunable matching circuit. In particular, the tunable output impedance matching component BC1017 may include one or more variable components such as resistors, inductors and capacitors. These variable components may be connected in parallel and / or in series, and may be connected between the output of the second multiplexer BC312 and the output of the DRx module BC1010, or the output of the second multiplexer BC312 and the ground voltage. You may connect to.

FIG. 18 shows that, in some embodiments, the diversity receiver configuration BC1100 may include a DRx module BC1110 with multi-tunable components. The diversity receiver configuration BC1100 includes a DRx module BC1110 having an input coupled to an antenna 140 and an output coupled to a transmit line 135. The DRx module BC1110 includes a certain number of paths between the inputs and outputs of the DRx module BC1110. In some implementations, the DRx module BC1110 includes one or more bypass paths (not shown) between an input and an output activated by one or more bypass switches controlled by the DRx controller BC1102.

The DRx module BC1110 includes a fixed number of multiplexer paths including an input multiplexer BC311 and an output multiplexer BC312. The multiplexer path includes a certain number of on-module paths (shown). This includes the tunable input impedance matching component BC1016, the input multiplexer BC311 and the bandpass filters BC313a to BC313d, the tunable impedance matching components BC934a to BC934d, the amplifiers BC314a to BC314d, the tunable phase shift components BC724a to BC724d, and the output multiplexer BC312. Includes tunable output impedance matching component BC1017. The multiplexer path may include one or more off-module paths (not shown) described herein. Again, as described herein, the amplifiers BC314a-BC314d can be variable gain amplifiers and / or variable current amplifiers.

The DRx controller BC1102 is configured to selectively activate one or more of a plurality of paths between inputs and outputs. In some implementations, the DRx controller BC1102 is configured to selectively activate one or more of a plurality of paths based on the band selection signal received by the DRx controller BC1102 (eg, from a communication controller). .. The DRx controller BC902 may selectively activate the path, for example, by enabling or disabling the amplifiers BC314a-BC314d, by controlling the multiplexers BC311, BC312, or via other mechanisms described herein. can. In some implementations, the DRx controllers BC1102 are configured to transmit amplifier control signals to one or more amplifiers BC314a-BC314d, each provided along one or more activated paths. The amplifier control signal is that of the amplifier to be transmitted. Control the gain (or current).

The DRx controller BC1102 is configured to tune one or more of the tunable input impedance matching component BC1016, the tunable impedance matching component BC934a to BC934d, the tunable phase shift component BC724a to BC724d, and the tunable output impedance matching component BC1017. .. For example, the DRx controller BC1102 can tune a tunable component based on a look-up table that associates a plurality of frequency bands (or a plurality of sets of frequency bands) indicated by a band selection signal with tuning parameters. Therefore, the DRx controller BC1101 transmits a tuning signal to the tunable component (active path) in response to the band selection signal in order to tune the tunable component (or its variable component) according to the tuning parameter. Can be done. In some implementations, the DRx controller BC1102 tunes tunable components, at least in part, based on the amplifier control signal to control the gain and / or current of the amplifiers BC314a-BC314d. In various implementations, one or more of the tunable components may be replaced by fixed components not controlled by the DRx controller BC1102.

Note that tuning one of the tunable components can affect the tuning of other tunable components. That is, the tuning parameters in the look-up table for the first tunable component may be based on the tuning parameters for the second tunable component. For example, the tuning parameters for the tunable phase shift components BC724a to BC724d may be based on the tuning parameters for the tunable impedance matching components BC934a to BC934d. In another example, the tuning parameters for the tunable impedance matching component BC934a-BC934d may be based on the tuning parameters for the tunable input impedance matching component BC1016.

FIG. 19 shows an embodiment of a flowchart representation of a method of processing an RF signal. In some implementations (and as detailed below, as an example), method BC1200 is performed by a controller such as the DRx controller BC1102 in FIG. In some implementations, method BC1200 is performed by processing logic that includes hardware, firmware, software, or a combination thereof. In some implementations, method BC1200 is performed by a processor that executes code stored on a non-temporary computer-readable medium (eg, memory). Briefly, method BC1200 includes receiving a band selection signal and routing the received RF signal to one or more tuned paths to process the received RF signal.

Method BC1200 begins at block BC1210 where the controller receives the band selection signal. The controller may receive a band selection signal from another controller, or may receive a band selection signal from a cellular base station or other external source. The band selection signal can indicate one or more frequency bands in which the radio device sends and receives RF signals. In some implementations, the band selection signal indicates a set of frequency bands for carrier aggregation communication.

At block BC1220, the controller selectively activates one or more paths of the diversity receiver (DRx) module based on the band selection signal. As described herein, the DRx module is between one or more inputs (coupled to one or more antennas) and one or more outputs (coupled to one or more transmit lines) of the DRx module. It may contain a certain number of routes. The route may include a bypass route and a multiplexer route. The multiplexer path may include an on-module path and an off-module path.

The controller divides one or more of a plurality of paths by enabling or disabling one or more of the paths, for example, by opening or closing one or more bypass switches, and by enabling or disabling an amplifier provided along the path via an amplifier enable signal. It can be selectively activated by the control of one or more multiplexers via control signals and / or combiner control signals, or through other mechanisms. For example, the controller can open and close a switch along the path, or set the gain of an amplifier along the path to substantially zero.

At block BC1230, the controller sends a tuning signal to one or more tunable components provided along one or more activated paths. The tunable components are a tunable impedance matching component provided at the input of the DRx module, a plurality of tunable impedance matching components provided along a plurality of paths, and each provided along the plurality of paths. It may include one or more of the plurality of tuneable phase shift components provided and the tunable output impedance matching component provided at the output of the DRx module.

The controller can tune the tunable component based on a look-up table that associates a plurality of frequency bands (or a plurality of sets of frequency bands) indicated by the band selection signal with tuning parameters. Therefore, the DRx controller sends a tuning signal to the tunable component (in the active path) in response to the band selection signal in order to tune the tunable component (or its variable component) according to the tuning parameters. Can be done. In some implementations, the controller is at least partially based on the amplifier control signal to control the gain and / or current of one or more amplifiers, each provided along one or more activated paths. Tune the tunable parts.

In particular, the above-mentioned Example C regarding the impedance shift component can be summarized as follows.

According to some embodiments, the present disclosure relates to a receiving system, which selectively activates one or more of a plurality of paths between an input of the receiving system and an output of the receiving system. Includes configured controls. The receiving system also includes multiple amplifiers. Each one of the plurality of amplifiers is provided along the corresponding one of the plurality of paths and is configured to amplify the signal received by the amplifier. The receiving system also includes multiple impedance matching components. Each one of the plurality of impedance matching components is provided along the corresponding one of the plurality of paths and is configured to reduce the one out-of-band noise figure and out-of-band gain of the plurality of paths.

In some embodiments, the first impedance matching component of the plurality of impedance matching components provided along the first path of the plurality of paths corresponding to the first frequency band corresponds to the second path of the plurality of paths. It can be configured to reduce at least one of the out-of-band noise figures or out-of-band gains for the second frequency band.

In some embodiments, the second impedance matching component of the plurality of impedance matching components provided along the second path reduces at least one of the out-of-band noise figure or out-of-band gain for the first frequency band. It can be configured as follows. In some embodiments, the first impedance matching component is further configured to reduce at least one of the out-of-band noise figures or out-of-band gains for the third frequency band corresponding to the third path of the plurality of paths. be able to.

In some embodiments, the first impedance matching component is further configured to reduce at least one of the in-band noise figures or increase the in-band gain for the first frequency band. In some embodiments, the first impedance matching component is configured to reduce the in-band metric, which is the in-band noise figure minus the in-band gain, to within the limit of the in-band metric minimum. Will be done. In some embodiments, the first impedance matching component can be configured to reduce the out-of-band metric, which is the out-of-band noise figure plus the out-of-band gain, to the in-band constrained out-of-band minimum. ..

In some embodiments, the receiving system further comprises a multiplexer configured to divide the input signal received at the input into multiple signals in each of a plurality of frequency bands propagating along a plurality of paths. obtain. In some embodiments, each one of the plurality of impedance matching components can be provided between the multiplexer and the corresponding one of the plurality of amplifiers. In some embodiments, the receiving system may further include a signal combiner configured to combine signals propagating along multiple paths.

In some embodiments, at least one of the plurality of impedance components may be a passive circuit. In some embodiments, at least one of the plurality of impedance matching components may be an RLC circuit.

In some embodiments, at least one of the plurality of impedance matching components may include a tunable impedance matching component configured to present the impedance controlled by the impedance tuning signal received from the controller.

In some embodiments, the first impedance matching component provided along the first path of the plurality of paths corresponding to the first frequency band further comprises a second frequency band of the signal passing through the first impedance matching component. By phase-shifting, the initial signal propagating along the second path of the plurality of paths corresponding to the second frequency band and the reflected signal propagating along the first path are at least partially in phase. It is composed of.

In some implementations, the present disclosure relates to a radio frequency (RF) module that includes a packaging substrate configured to accept multiple components. The RF module also includes a receiving system mounted on the packaging board. The receiving system includes a controller configured to selectively activate one or more of the paths between the input of the receiving system and the output of the receiving system. The receiving system also includes multiple amplifiers. Each one of the plurality of amplifiers is provided along the corresponding one of the plurality of paths and is configured to amplify the signal received by the amplifier. The receiving system also includes multiple impedance matching components. Each one of the plurality of impedance matching components is provided along the corresponding one of the plurality of paths and is configured to reduce the one out-of-band noise figure and out-of-band gain of the plurality of paths. In some embodiments, the RF module may be a diversity receiver front-end module (FEM).

In some embodiments, the first impedance matching component of the plurality of impedance matching components provided along the first path of the plurality of paths corresponding to the first frequency band corresponds to the second path of the plurality of paths. It can be configured to reduce at least one of the out-of-band noise figures or out-of-band gains for the second frequency band.

According to some teachings, the present disclosure relates to a radio device comprising a first antenna configured to receive a first radio frequency (RF) signal. The radio device also includes a first front-end module (FEM) that communicates with the first antenna. The first FEM, including the packaging substrate, is configured to accept multiple components. The first FEM further includes a receiving system mounted on a packaging board. The receiving system includes a controller configured to selectively activate one or more of the paths between the input of the receiving system and the output of the receiving system. The receiving system also includes multiple amplifiers. Each one of the plurality of amplifiers is provided along the corresponding one of the plurality of paths and is configured to amplify the signal received by the amplifier. The receiving system also includes multiple impedance matching components. Each one of the plurality of impedance matching components is provided along the corresponding one of the plurality of paths and is configured to reduce the one out-of-band noise figure and out-of-band gain of the plurality of paths. The radio device further includes a transmitter / receiver configured to receive a processed version of the first RF signal from the output over the transmit line and generate data bits based on the processed version of the first RF signal.

In some embodiments, the radio device may further include a second antenna configured to receive a second radio frequency (RF) signal and a second FEM communicating with the first antenna. The transmitter / receiver is configured to receive a processed version of the second RF signal from the output of the second FEM and generate data bits based on the processed version of the second RF signal.

In some embodiments, the first impedance matching component of the plurality of impedance matching components provided along the first path of the plurality of paths corresponding to the first frequency band corresponds to the second path of the plurality of paths. It is configured to reduce at least one of the out-of-band noise figures or out-of-band gains for the second frequency band.

Example D: Amplifier post-stage filter

FIG. 20 includes, in some embodiments, a diversity receiver configuration D400 comprising a diversity receiver (DRx) module D410 having a plurality of bandpass filters D423a-D423d provided at the outputs of the plurality of amplifiers D314a-D314d. Show to get. The diversity receiver configuration D400 includes a DRx module D410 having an input coupled to the antenna 140 and an output coupled to the transmit line 135. The DRx module D410 includes a fixed number of paths between the inputs and outputs of the DRx module D410. Each path includes an input multiplexer D311, an amplifier pre-stage band pass filter D413a to D413d, amplifiers D314a to D314d, an amplifier post stage band pass filter D423a to D423d, and an output multiplexer D312.

The DRx controller D302 is configured to selectively activate one or more of a plurality of paths between inputs and outputs. In some implementations, the DRx controller D302 is configured to selectively activate one or more of a plurality of paths based on the band selection signal received by the DRx controller D302 (eg, from a communication controller). .. The DRx controller D302 can selectively activate the path, for example, by enabling or disabling the amplifiers D314a-D314d, by controlling the multiplexers D311 and D312, or via other mechanisms.

The output of the DRx module D410 is passed through the transmission line 135 to the diversity RF module D420. The diversity RF module D420 differs from the diversity RF module 320 of FIG. 3 in that the diversity RF module D420 of FIG. 20 does not include a downstream bandpass filter. In some implementations (eg, as shown in FIG. 20), the downstream multiplexer D321 may be implemented as a sample switch.

Including the amplifier post-band band pass filters D423a-D423d in the DRx module D410 instead of the diversity RF module D420 may provide a certain number of advantages. For example, as detailed below, such a configuration improves the noise figure of the DRx module D410, simplifies filter design, and / or improves path isolation.

Each path of the DRx module D410 can be characterized by a noise figure. The noise figure for each path represents the signal-to-noise ratio (SNR) degradation caused by propagation along the path. In particular, the noise figure of each path can be expressed as a decibel (dB) difference between the SNR at the input of the amplifier front-stage band-passing filters D413a to D413d and the SNR at the output of the amplifier rear-stage band-passing filters D423a to D4234b. The noise figure of each path can be different for different frequency bands. For example, the first path may have an in-band noise figure for the first frequency band and an out-of-band noise figure for the second frequency band. Similarly, the second path may have an in-band noise figure for the second frequency band and an out-of-band noise figure for the first frequency band.

The DRx module D410 can also be characterized by different noise figures for different frequency bands. In particular, the noise figure of the DRx module D410 is the dB difference between the SNR at the input of the DRx module D410 and the SNR at the output of the DRx module D410.

Since the signal propagating along the two paths is coupled by the output multiplexer D312, out-of-band noise generated or amplified by the amplifier can have a negative effect on the coupled signal. For example, the out-of-band noise generated or amplified by the first amplifier D314a can increase the noise figure of the DRx module D410 at the second frequency. That is, the amplifier post-band band pass filter D423a provided along the path can reduce this out-of-band noise and reduce the noise figure of the DRx module D410 at the second frequency.

In some implementations, the amplifier pre-stage bandpass filters D413a-D413d and the amplifier post-stage bandpass filters D423a-D423d can be designed in a complementary manner, simplifying filter design with low cost and few components and / or. Similar performance is achieved. For example, the amplifier rear-stage band-passing filter D423a provided along the first path can strongly attenuate frequencies that are weakly attenuated by the amplifier front-stage band-passing filter D413a provided along the first path. In one example, the amplifier pre-band band pass filter D413a may attenuate frequencies below the first frequency band rather than frequencies above the first frequency band. To complement it, the amplifier post-band band pass filter D423a may attenuate frequencies above the first frequency band rather than frequencies below the first frequency band. That is, the amplifier pre-stage band pass filter D413a and the amplifier post-stage band pass filter D423a work together to attenuate all out-of-band frequencies using fewer components. In general, one of the band-passing filters provided along one path can attenuate frequencies below the corresponding frequency band of the path more than frequencies above the corresponding frequency band, and is provided along the path. The other one of the band-passing filters obtained can attenuate frequencies above the corresponding frequency band more than frequencies below the corresponding frequency band. The amplifier front-stage band-passing filters D413a to D413d and the amplifier rear-stage band-passing filters D423a to D423d may be complementary in other embodiments. For example, the amplifier pre-stage bandpass filter D413a provided along the first path can phase shift the signal by a certain frequency, and the amplifier post-stage bandpass filter D423a provided along the first path can be used. , The signal can be phase-shifted in reverse by the frequency.

In some implementations, the amplifier postband bandpass filters D423a-D423d can improve path isolation. For example, without the amplifier backband passband filter, the signal propagating along the first path can be filtered by the amplifier pre-stage bandpass filter D413a to the first frequency and amplified by the amplifier D314a. As a result of leaking through the output multiplexer D312, the signal propagates in the opposite direction along the second path and is reflected from the amplifier D314b provided along the second path, the amplifier pre-stage bandpass filter D413b, or other components. Can be done. If this reflected signal is out of phase with the initial signal, the signal is weakened when coupled by the output multiplexer D312. In contrast, according to the amplifier late bandpass filter, the leakage signal (mainly in the first frequency band) is provided along the second path and is associated with the second frequency band. Since it is attenuated by the filter D423b, the influence of any reflected signal is reduced.

That is, the DRx module D410 selectively activates one or more of the plurality of paths between the input of the first multiplexer (for example, the input multiplexer D311) and the output of the second multiplexer (for example, the output multiplexer D312). Includes configured controls. The DRx module D410 further includes a plurality of amplifiers D314a to D314d. Each one of the plurality of amplifiers D314a to D314d is provided along the corresponding one of the plurality of paths and is configured to amplify the signal received by the amplifier. The DRx module D410 includes a first plurality of band-passing filters (for example, amplifier post-stage band-passing filters D423a to D423d). Each one of the first plurality of band-passing filters is provided along the corresponding one of the plurality of paths in the corresponding output of the plurality of amplifiers D314a to D314d, and the signal received by the band-passing filter is received. It is configured to filter into each frequency band. As shown in FIG. 20, in some implementations, the DRx module D410 further includes a second plurality of bandpass filters (eg, amplifier pre-stage bandpass filters D413a-D413d). Each one of the second plurality of band-passing filters is provided at the input of one corresponding amplifier of the plurality of amplifiers D314a to D314d along the corresponding one of the plurality of paths, and the signal received by the band-passing filter is provided. Is configured to be filtered into each frequency band.

FIG. 21 shows that, in some embodiments, the diversity receiver configuration D450 may include a diversity RF module D460 with fewer amplifiers than the diversity receiver (DRx) module D410. As mentioned herein, in some implementations, the diversity RF module D460 may not include a passband filter. That is, in some implementations, one or more amplifiers D424 of the diversity RF module D460 need not be band-specific. In particular, the diversity RF module D460 may include one or more paths. Each path includes an amplifier D424 that is not one-to-one mapped to the path of the DRx module D410. The mapping of such a path (or corresponding amplifier) can be stored in the controller 120.

Thus, while the DRx module D410 includes a certain number of paths, each corresponding to one frequency band, the diversity RF module D460 does not support a single frequency band (from the input of the diversity RF module D460 to the input of the multiplexer D321). ) Can include one or more routes.

In some implementations (shown in FIG. 21), the diversity RF module D460 includes a single wideband or tunable amplifier D424 that amplifies the signal received from the transmit line 135 and outputs the amplified signal to the multiplexer D321. .. The multiplexer D321 includes a plurality of multiplexer outputs, each corresponding to each frequency band. In some implementations, the multiplexer D321 may be implemented as a sample switch. In some implementations, the diversity RF module D460 does not include any amplifier.

In some implementations, the diversity signal is a single band signal. That is, in some implementations, the multiplexer D321 routes a diversity signal to one of the plurality of outputs corresponding to the frequency band of the single band signal based on the signal received from the controller 120. (SPMT) switch. In some implementations, the diversity signal is a multiband signal. That is, in some implementations, the multiplexer D421 converts the diversity signal based on the divider control signal received from the controller 120 into two or more corresponding to two or more frequency bands of the multiband signal of multiple outputs. It is a band divider to be routed. In some implementations, the diversity RF module D460 can be combined with the transmitter / receiver D330 into a single module.

In some implementations, the diversity RF module D460 includes multiplex amplifiers, each corresponding to a set of frequency bands. The signal from the transmission line 135 can be supplied to a band divider that outputs a high frequency to the high frequency amplifier along the first path and outputs a low frequency to the low frequency amplifier along the second path. The output of each amplifier can be fed to a multiplexer D321 configured to route the signal to the corresponding input of transmitter / receiver D330.

FIG. 22 shows that in some embodiments, the diversity receiver configuration D500 may include a DRx module D510 coupled to one or more off-module filters D513, D523. The DRx module D510 may include a packaging substrate D501 configured to accept a plurality of components and a receiving system mounted on the packaging substrate D501. The DRx module D510 may include one or more signal paths routed out of the DRx module D510 and made available to system integrators, designers or manufacturers to support filters for any desired band.

The DRx module D510 includes a fixed number of paths between the inputs and outputs of the DRx module D510. The DRx module D510 includes a bypass path between inputs and outputs activated by a bypass switch D519 controlled by the DRx controller D502. Although FIG. 22 illustrates a single bypass switch D519, in some implementations the bypass switch D519 is a multiplex switch (eg, a first switch located close to the physical of the input, and the physical of the output. A second switch) provided near the target may be included. As shown in FIG. 22, the bypass path does not include a filter or an amplifier.

The DRx module D510 includes a fixed number of multiplexer paths including a first multiplexer D511 and a second multiplexer D512. The multiplexer path includes a certain number of on-module paths. This includes the first multiplexer D511, the amplifier front-stage band-passing filters D413a to D413d mounted on the packaging board D501, the amplifiers D314a to D314d mounted on the packaging board D501, and the amplifier post-stage band-passing mounted on the packaging board D501. Includes filters D423a-D423d and a second multiplexer D512. The multiplexer path includes one or more off-module paths. This includes a first multiplexer D511, an amplifier pre-stage bandpass filter D513 mounted on the packaging board D501, an amplifier D514, an amplifier post-stage bandpass filter D523 mounted on the packaging board D501, and a second multiplexer D512. The amplifier D514 can be a wideband amplifier mounted on the packaging board D501, or can be mounted outside the packaging board D501. In some implementations, one or more off-module paths do not include the amplifier pre-band band pass filter D513, but do include the amplifier post-band band pass filter D523. As described herein, the amplifiers D314a to D314d, D514 may be variable gain amplifiers and / or variable current amplifiers.

The DRx controller D502 is configured to selectively activate one or more of the plurality of paths between the input and the output. In some implementations, the DRx controller D502 is configured to selectively activate one or more of the plurality of paths based on a band selection signal received by the DRx controller D502 (eg, from a communication controller). To. The DRx controller D502 selectively activates the path, for example, by opening and closing the bypass switch D519, by enabling or disabling the amplifiers D314a to D314d, D514, by controlling the multiplexers D511, D512, or via other mechanisms. Can be. For example, the DRx controller D502 opens and closes a switch along the path (eg, between the filters D313a to D313d, D513 and the amplifiers D314a to D314d, D514), or substantially gains the gains of the amplifiers D314a to D314d, D514. Can be set to zero.

FIG. 23 shows that, in some embodiments, the diversity receiver configuration D600 may include a DRx module D610 with a tunable matching circuit. In particular, the DRx module D610 may include one or more tunable matching circuits provided on one or more of the inputs and outputs of the DRx module D610.

It is unlikely that all of the multiple frequency bands received by the same diversity antenna 140 will be ideal impedance matching. In order to match each frequency band using a compact matching circuit, a tunable input matching circuit D616 is mounted on the input of the DRx module D610 (eg, based on a band selection signal from the communication controller) by the DRx controller D602. Can be controlled. The DRx controller D602 can tune the tunable input matching circuit D616 based on a look-up table that associates a plurality of frequency bands (or a plurality of sets of frequency bands) with tuning parameters. The tunable input matching circuit D616 can be a tunable T-type circuit, a tunable π-type circuit, or any other tunable matching circuit. In particular, the tunable input matching circuit D616 may include one or more variable components such as resistors, inductors and capacitors. These variable components may be connected in parallel and / or in series, and may be connected between the input of the DRx module D610 and the input of the first multiplexer D311, or the input of the DRx module D610 and the ground voltage. You may connect between.

Similarly, with only one transmit line 135 (or at least some cables) carrying signals in many frequency bands, it is unlikely that the entire multiple frequency band will be ideal impedance matching. In order to match each frequency band using the compact matching circuit, the tunable output matching circuit D617 is mounted on the output of the DRx module D610 (eg, based on the band selection signal from the communication controller) by the DRx controller D602. Can be controlled. The DRx controller D602 can tune the tunable output matching circuit D618 based on a look-up table that associates a plurality of frequency bands (or a plurality of sets of frequency bands) with tuning parameters. The tunable output matching circuit D617 can be a tunable T-type circuit, a tunable π-type circuit, or any other tunable matching circuit. In particular, the tunable output matching circuit D617 may include one or more variable components such as resistors, inductors and capacitors. These variable components may be connected in parallel and / or in series, and may be connected between the output of the DRx module D610 and the output of the second multiplexer D312, or the output of the DRx module D610 and the ground voltage. You may connect between.

In particular, the above-mentioned example D regarding the amplifier post-stage filter can be summarized as follows.

According to some embodiments, the present disclosure comprises a controller configured to selectively activate one or more of a plurality of paths between an input of a first multiplexer and an output of a second multiplexer. Regarding receiving systems including. The receiving system may include multiple amplifiers. Each one of the plurality of amplifiers can be provided along the corresponding one of the plurality of paths, and can be configured to amplify the signal received by the amplifier. The receiving system may include a first plurality of bandpass filters. Each one of the first plurality of band-passing filters can be provided along the corresponding one of the plurality of paths at the corresponding output of the plurality of amplifiers, and each of the signals received by the band-passing filter can be provided. It can be configured to filter into the frequency band.

In some embodiments, the receiving system may further include a second plurality of bandpass filters. Each one of the second plurality of band-passing filters can be provided at the input of one corresponding amplifier of the plurality of amplifiers along the corresponding one of the plurality of paths, and the signal received by the band-passing filter can be provided. It can be configured to filter into each frequency band.

In some embodiments, one of the first plurality of band-passing filters provided along the first path and one of the second plurality of band-passing filters provided along the first path. It is complementary. In some embodiments, one of the bandpass filters provided along the first path can attenuate frequencies below the corresponding frequency band rather than within the corresponding frequency band, and the first. Another band-passing filter provided along one path can attenuate frequencies within the corresponding frequency band rather than frequencies below the corresponding frequency band.

In some embodiments, the receiving system may further include a transmit line coupled to the output of the second multiplexer and coupled to a downstream module including a downstream multiplexer. In some embodiments, the downstream module does not include a downstream bandpass filter. In some embodiments, the downstream multiplexer includes a sample switch. In some embodiments, the downstream module may include one or more downstream amplifiers. In some embodiments, the number of one or more downstream amplifiers may be less than the number of plurality of amplifiers.

In some embodiments, at least one of the plurality of amplifiers may include a low noise amplifier.

In some embodiments, the receiving system may further include one or more tunable matching circuits provided at one or more of the input of the first multiplexer and the output of the second multiplexer.

In some embodiments, the controller can be configured to selectively activate one or more of a plurality of paths based on the band selection signal received by the controller. In some embodiments, the controller selectively activates one or more of the plurality of paths by transmitting the divider control signal to the first multiplexer and the combiner control signal to the second multiplexer. Can be configured.

In some implementations, the present disclosure relates to a radio frequency (RF) module that includes a packaging substrate configured to accept multiple components. The RF module also includes a receiving system mounted on the packaging board. The receiving system includes a controller configured to selectively activate one or more of a plurality of paths between the input of the first multiplexer and the output of the second multiplexer. The receiving system also includes multiple amplifiers. Each one of the plurality of amplifiers can be provided along the corresponding one of the plurality of paths, and can be configured to amplify the signal received by the amplifier. The receiving system further includes a first plurality of bandpass filters. Each one of the first plurality of band-passing filters can be provided along the corresponding one of the plurality of paths at the corresponding output of the plurality of amplifiers, and each of the signals received by the band-passing filter can be provided. It can be configured to filter into the frequency band.

In some embodiments, the RF module can be a diversity receiver front-end module (FEM).

In some embodiments, the receiving system may further include a second plurality of bandpass filters. Each one of the second plurality of band-passing filters can be provided along the corresponding one of the plurality of paths at the corresponding input of the plurality of amplifiers, and the signal received by the band-passing filter can be provided at each frequency. It can be configured to filter to band.

In some embodiments, the plurality of paths may include an off-module path including an off-module bandpass filter and one of a plurality of amplifiers.

According to some teachings, the present disclosure relates to a radio device comprising a first antenna configured to receive a first radio frequency (RF) signal. The radio device also includes a first front-end module (FEM) that communicates with the first antenna. The first FEM, including the packaging substrate, is configured to accept multiple components. The first FEM further includes a receiving system mounted on a packaging board. The receiving system includes a controller configured to selectively activate one or more of a plurality of paths between the input of the first multiplexer and the output of the second multiplexer. The receiving system also includes multiple amplifiers. Each one of the plurality of amplifiers can be provided along the corresponding one of the plurality of paths, and can be configured to amplify the signal received by the amplifier. The receiving system further includes a first plurality of bandpass filters. Each one of the first plurality of band-passing filters can be provided at the output of one corresponding amplifier of the plurality of amplifiers along the corresponding one of the plurality of paths, and the signal received by the band-passing filter can be provided. It can be configured to filter into each frequency band. The radio device further includes a communication module configured to receive a processed version of the first RF signal from the output over the transmit line and generate data bits based on the processed version of the first RF signal.

In some embodiments, the radio device further comprises a second antenna configured to receive a second radio frequency (RF) signal and a second FEM communicating with the second antenna. The communication module can be configured to receive a processed version of the second RF signal from the output of the second FEM and generate data bits based on the processed version of the second RF signal.

In some embodiments, the receiving system further comprises a second plurality of bandpass filters. Each one of the second plurality of band-passing filters can be provided at the input of one corresponding amplifier of the plurality of amplifiers along the corresponding one of the plurality of paths, and the signal received by the band-passing filter can be provided. It can be configured to filter into each frequency band.

Example E: Switching network

FIG. 24 shows that, in some embodiments, the diversity receiver configuration E500 may include a DRx module E510 with a single pole / single throw switch E519. The DRx module E510 includes two paths from the input of the DRx module E510 coupled to the antenna 140 to the output of the DRx module E510 coupled to the transmit line 135. The DRx module E510 includes a plurality of amplifiers E514a to E514b. Each one of the plurality of amplifiers E514a to E514b is provided along the corresponding one of the plurality of paths and is configured to amplify the signal received by the amplifier. In some implementations, as shown in FIG. 24, at least one of the plurality of amplifiers includes a two-stage amplifier.

In the DRx module E510 of FIG. 24, the signal divider and the bandpass filter are implemented as the diplexer E511. The diplexer E511 has an input coupled to the antenna 140, a first output coupled to a phase shift component E527a provided along the first path, and a second phase shift component E527b provided along the second path. Includes a second output coupled to. At the first output, the diplexer E511 outputs a signal received at the input (eg, from the antenna 140) and filtered into the first frequency band. At the second output, the diplexer E511 outputs a signal received at the input and filtered into the second frequency band. In some implementations, the diplexer E511 is configured to split the input signal received at the input of the DRx module E510 into multiple signals in each of the multiple frequency bands propagated along multiple paths. It may be replaced with a triplexer, quadplexer or any other multiplexer.

In some implementations, an output multiplexer or other signal combiner provided at the output of the DRx module, such as the second multiplexer 312 in FIG. 3, degrades the performance of the DRx module when receiving a singleband signal. I can let you. For example, an output multiplexer may attenuate noise or introduce it into a single band signal. In some implementations, when multiplex amplifiers such as amplifiers 314a-314d in FIG. 3 are simultaneously enabled to support multiplex band signals, each amplifier will each have not only in-band noise, but also other multiplexing. Out-of-band noise for each of the bands can also be introduced.

The DRx module E510 of FIG. 24 addresses some of these challenges. The DRx module E510 includes a unipolar / single throw (SPST) switch E519 that couples the first path to the second path. The switch E519 is opened, the first amplifier E514a is enabled, and the second amplifier E514b is disabled to operate in single band mode with respect to the first frequency band. That is, the single band signal in the first frequency band propagates from the antenna 140 to the transmission line 135 along the first path without switching loss. Similarly, the switch E519 is opened, the first amplifier E514a is disabled, and the second amplifier E514b is enabled to operate in single band mode with respect to the second frequency band. That is, the single band signal in the second frequency band propagates from the antenna 140 to the transmission line 135 along the second path without switching loss.

The switch E519 is closed, the first amplifier E514a is enabled, and the second amplifier E514b is disabled to operate in the multiband mode for the first and second frequency bands. That is, the first frequency band portion of the multiband signal propagates along the first path through the first phase shift component E527a, the first impedance matching component E526a and the first amplifier E514a. The first frequency band portion is prevented from propagating back along the second path across the switch E519 by the second phase shift component E527b. In particular, the second phase shift component E527 b is to phase shift the first frequency band portion of the signal passing through the second phase shift component E527 b in order to maximize (or at least increase) the impedance in the first frequency band. It is composed of.

The second frequency band portion of the multiband signal propagates along the second path through the second phase shift component E527b, crosses the switch E519, and into the first path through the first impedance matching component E526a and the first amplifier E314a. Propagate along. The second frequency band portion is prevented from propagating back along the first path by the first phase shift component E527a. In particular, the first phase shift component E527a is configured to phase shift the second frequency band portion of the signal passing through the first phase shift component E527a in order to maximize (or at least increase) the impedance in the second frequency band. Will be done.

Each path can be characterized by noise figure and gain. The noise figure of each path represents the deterioration of the signal-to-noise ratio (SNR) caused by the amplifier and the impedance matching components E526a to E526b provided along the path. In particular, the noise figure of each path is the decibel (dB) difference between the SNR at the input of the impedance matching components E526a to E526b and the SNR at the output of the amplifiers E314a to E314b. That is, the noise figure is a measure of the difference between the noise output of an amplifier with the same gain and the noise output of an "ideal" amplifier (no noise).

The noise figure of each path can be different for different frequency bands. For example, the first path may have a first noise figure for a first frequency band and a second noise figure for a second frequency band. The noise figure and gain of each path (in each frequency band) may depend, at least in part, on the impedance (in each frequency band) of the impedance matching components E526a-E526b. Therefore, it may be advantageous for the impedance of the impedance matching components E526a to E526b to minimize (or reduce) the noise figure of each path.

In some implementations, the second impedance matching component E526b presents an impedance that minimizes (or reduces) the noise figure for the second frequency band. In some implementations, the first impedance matching component E526a minimizes (or reduces) the noise figure for the first frequency band. In some implementations, the first impedance matching component E526a has a noise figure for the first band and noise for the second band, as the second frequency band portion of the multiband signal can partially propagate along the first part. Minimize (or reduce) metrics including exponents.

Impedance matching components E526a to E526b may be mounted as a passive circuit. In particular, the impedance matching components E526a-E526b may be mounted as an RLC circuit and may include one or more passive components such as resistors, inductors and / or capacitors. These passive components may be connected in parallel and / or in series, and may be connected between the outputs of the phase shift components E527a to E527b and the inputs of the amplifiers E514a to E415b, of the phase shift components E527a to E527b. It may be connected between the output and the ground voltage.

Similarly, the phase shift components E527a to E527b may also be mounted as a passive circuit. In particular, the phase shift components E527a-E527b may be mounted as an LC circuit and may include one or more passive components such as inductors and / or capacitors. These passive components may be connected in parallel and / or in series, and may be connected between the output of the diplexer E511 and the input of the impedance matching components E526a-E526b, or the output of the diplexer E511 and the ground voltage. You may connect between.

FIG. 25 shows that, in some embodiments, the diversity receiver configuration E600 may include a DRx module E610 with tunable phase shift components E627a-E627d. Each of the tunable phase shift components E627a to E627d can be configured to phase shift the signal passing through the tunable phase shift component by the amount controlled by the phase shift tuning signal received from the controller.

The diversity receiver configuration E600 includes a DRx module E610 having an input coupled to the antenna 140 and an output coupled to the transmit line 135. The DRx module E610 includes a certain number of paths between the inputs and outputs of the DRx module E610. Each path includes multiplexer E311, bandpass filters E313a-E313d, tunable phase shift components E627a-E627d, switching network E612, tunable impedance matching components E626a-E626d and amplifiers E314a-E314d. As described herein, the amplifiers E314a to E314d may be variable gain amplifiers and / or variable current amplifiers.

The tunable phase shift components E627a to E627d may include one or more variable components such as inductors and capacitors. These variable components may be connected in parallel and / or in series, and may be connected between the output of the multiplexer E311 and the input of the switching network E612, or between the output of the multiplexer and the ground voltage. You may connect.

The tunable impedance matching components E626a to E626d may be a tunable T-type circuit, a tunable π-type circuit, or any other tunable matching circuit. The tunable impedance matching components E626a-E626d may include one or more variable components such as resistors, inductors and capacitors. These variable components may be connected in parallel and / or in series, and may be connected between the output of the switching network E612 and the input of the amplifiers E314a-E314d, or the output of the switching network E612 and the ground voltage. You may connect between.

The DRx controller E602 is configured to selectively activate one or more of the plurality of paths between the input and the output. In some implementations, the DRx controller E602 is configured to selectively activate one or more of a plurality of paths based on a band selection signal received by the DRx controller E602 (eg, from a communication controller). To. The DRx controller E602 selectively activates the path, for example, by enabling or disabling the amplifiers E314a-E314d, by controlling the multiplexer E311 and / or the switching network E612, and / or via other mechanisms. Can be done.

In some implementations, the DRx controller E602 controls the switching network E612 based on the band selection signal. The switching network includes a plurality of SPST switches, each switch coupling two of the plurality of paths. The DRx controller E602 can transmit a switching signal (or multiplex switching signal) to the switching network in order to open and close a plurality of SPST switches. For example, if the band selection signal indicates that the input signal includes a first frequency band and a second frequency band, the DRx controller E602 may close the switch between the first and second paths. If the band selection signal indicates that the input signal includes a second frequency band and a fourth frequency band, the DRx controller E602 may close the switch between the second and fourth paths. If the band selection signal indicates that the input signal includes a first frequency band, a second frequency band and a fourth frequency band, the DRx controller E602 may close both switches (and / or the first path and / or the first path and The switch between the second path and the switch between the first path and the fourth path can be closed). When the band selection signal indicates that the input signal includes the second frequency band, the third frequency band, and the fourth frequency, the DRx controller E602 sets the switch between the second path and the third path, and the third path and the third path. The switch between the fourth and fourth paths may be closed (and / or the switch between the second and third paths and the switch between the second and fourth paths may be closed).

In some implementations, the DRx controller E602 is configured to tune the tunable phase shift components E627a-E627d. In some implementations, the DRx controller E602 tunes the tunable phase shift components E627a-E627d based on the band selection signal. For example, the DRx controller E602 tunes the tunable phase shift components E627a to E627d based on a look-up table that associates a plurality of frequency bands (or a plurality of sets of frequency bands) indicated by a band selection signal with tuning parameters. Can be done. Therefore, the DRx controller E602 sets the phase shift tuning signal in response to the band selection signal in order to tune the tunable phase shift component (or its variable component) according to the tuning parameter. It can be transmitted to the parts E627a to E627d.

The DRx controller E602 is configured to tune the tunable phase shift components E627a-E627d of each active path to maximize (or at least reduce) the impedance in the frequency band corresponding to the other active paths. be able to. That is, when the first and third paths are active, the DRx controller E602 tunes the first phase shift component E627a to maximize (or at least increase) the impedance in the third frequency band, while the first. When the path and the fourth path are active, the DRx controller E602 tunes the first phase shift component E627a to maximize (or at least increase) the impedance in the fourth frequency band.

In some implementations, the DRx controller E602 is configured to tune the tunable impedance matching components E626a-E626d. In some implementations, the DRx controller E602 tunes the tunable impedance matching components E626a-E626d based on the band selection signal. For example, the DRx controller E602 tunes the tunable impedance matching components E626a to E626d based on a look-up table that associates a plurality of frequency bands (or a plurality of sets of frequency bands) indicated by a band selection signal with tuning parameters. Can be done. Therefore, the DRx controller E602 can transmit an impedance tuning signal in response to the band selection signal to the tunable impedance matching components E626a-E626d of the path having the active amplifier, depending on the tuning parameters.

In some implementations, the DRx controller E602 is a tuneable impedance matching component for paths with an active amplifier to minimize (or reduce) metrics including noise figures for the corresponding frequency band of each active path. Tune E626a to E626d.

In various implementations, one or more of the tunable phase shift components E627a-E627d or the tunable impedance matching components E626a-E626d may be replaced by fixed components not controlled by the DRx controller E602.

FIG. 26 shows an embodiment of a flowchart representation of the method E700 for processing RF signals. In some implementations (and as detailed below, as an example), method E700 is performed by a controller such as the DRx controller E602 in FIG. In some implementations, method E700 is performed by processing logic that includes hardware, firmware, software, or a combination thereof. In some implementations, method E700 is performed by a processor that executes code stored on a non-temporary computer-readable medium (eg, memory). Briefly, method E700 includes receiving a band selection signal and routing the received RF signal along one or more paths to process the received RF signal.

The method E700 starts from the controller receiving the band selection signal in the block E710. The controller may receive a band selection signal from another controller, or may receive a band selection signal from a cellular base station or other external source. The band selection signal can indicate one or more frequency bands in which the radio device sends and receives RF signals. In some implementations, the band selection signal indicates a set of frequency bands for carrier aggregation communication.

At block E720, the controller sends an amplifier enable signal to the amplifier of the DRx module based on the band selection signal. In some implementations, when the band selection signal points to a single frequency band, the controller sends an amplifier enable signal to enable the amplifier provided along the path corresponding to that single frequency band. The controller may transmit an amplifier enable signal to disable other amplifiers provided along other paths corresponding to other frequency bands. In some implementations, when the band selection signal points to a multiple frequency band, the controller will enable the amplifier enable signal along one of the paths corresponding to one of the multiple frequency bands. To send. The controller may send an amplifier enable signal to disable other amplifiers. In some implementations, the controller enables an amplifier along the path corresponding to the lowest frequency band.

At block E730, the controller transmits a switching signal that controls the switching network of the unipolar / single throw (SPST) switch based on the band selection signal. The switching network includes a plurality of SPST switches that combine a plurality of paths corresponding to a plurality of frequency bands. In some implementations, when the band selection signal indicates a single frequency band, the controller sends a switching signal that opens all of the SPST switches. In some implementations, when a band selection signal indicates a multiple frequency band, the controller sends a switching signal that closes one or more of the SPST switches in order to couple the paths corresponding to that multiple frequency band.

At block E740, the controller transmits a tuning signal to one or more tunable components based on the band selection signal. The tunable component may include one or more of a plurality of tunable phase shift components or a plurality of tunable impedance matching components. The controller can tune the tunable component based on a look-up table that associates a plurality of frequency bands (or a plurality of sets of frequency bands) indicated by the band selection signal with tuning parameters. Therefore, the DRx controller sends a tuning signal to the tunable component (in the active path) in response to the band selection signal in order to tune the tunable component (or its variable component) according to the tuning parameters. Can be done.

In particular, the above-mentioned example E regarding the switching network can be summarized as follows.

According to some embodiments, the present disclosure relates to a receiving system that includes a plurality of amplifiers. Each one of the plurality of amplifiers is provided along the corresponding one of the plurality of paths between the input of the receiving system and the output of the receiving system, and is configured to amplify the signal received by the amplifier. Will be done. The receiving system further includes a switching network that includes one or more unipolar / single throw switches. Each one of the switches couples two of the plurality of paths. The receiving system further includes a controller configured to receive the band selection signal and enable one of a plurality of amplifiers based on the band selection signal to control the switching network.

In some embodiments, the control network by enabling one of a plurality of amplifiers corresponding to that single frequency band in response to receiving a band selection signal indicating a single frequency band. Can be configured to open all of one or more switches.

In some embodiments, the controller switches by enabling one of a plurality of amplifiers corresponding to one of the multiple frequency bands in response to receiving a band selection signal indicating the multiple frequency band. The network can be controlled to close at least one of the switches between the paths corresponding to the multiple frequency bands.

In some embodiments, the receiving system may further include multiple phase shift components. Each one of the plurality of phase shift components can be provided along the corresponding one of the plurality of paths, and is said to increase the impedance for the frequency band corresponding to the other one of the plurality of paths. The signal passing through the phase shift component can be configured to phase shift. In some embodiments, each one of the plurality of phase shift components can be provided between the switching network and the input. In some embodiments, at least one of the plurality of phase shift components may include a tunable phase shift component. This phase shifts the signal passing through the tunable phase shift component by the amount controlled by the phase shift tuning signal received from the controller. In some embodiments, the controller can be configured to generate a phase shift tuning signal based on the band selection signal.

In some embodiments, the receiving system may further include multiple impedance matching components. Each one of the plurality of impedance matching components can be provided along the corresponding one of the plurality of paths and can be configured to reduce the noise figure of the one of the plurality of paths. In some embodiments, each one of the plurality of impedance matching components can be provided between the switching network and the corresponding one of the plurality of amplifiers. In some embodiments, at least one of the plurality of impedance matching components may include a tunable impedance matching component configured to present the impedance controlled by the impedance tuning signal received from the controller. In some embodiments, the controller can be configured to generate an impedance tuning signal based on the band selection signal.

In some embodiments, the receiving system further comprises a multiplexer configured to divide the input signal received at the input into multiple signals in each of a plurality of frequency bands propagating along a plurality of paths. obtain.

In some embodiments, at least one of the plurality of amplifiers may include a two-stage amplifier.

In some embodiments, the controller can be configured to enable one of the plurality of amplifiers and disable the other of the plurality of amplifiers.

In some implementations, the present disclosure relates to a radio frequency (RF) module that includes a packaging substrate configured to accept multiple components. The RF module also includes a receiving system mounted on the packaging board. The receiving system includes multiple amplifiers. Each one of the plurality of amplifiers is provided along the corresponding one of the plurality of paths between the input of the receiving system and the output of the receiving system, and is configured to amplify the signal received by the amplifier. Will be done. The receiving system further includes a switching network that includes one or more unipolar / single throw switches. Each one of the switches couples two of the plurality of paths. The receiving system further includes a controller configured to receive the band selection signal and enable one of a plurality of amplifiers based on the band selection signal to control the switching network.

In some embodiments, the RF module can be a diversity receiver front-end module (FEM).

In some embodiments, the receiving system may further include multiple phase shift components. Each one of the plurality of phase shift components can be provided along the corresponding one of the plurality of paths, and is said to increase the impedance for the frequency band corresponding to the other one of the plurality of paths. The signal passing through the phase shift component can be configured to phase shift.

According to some teachings, the present disclosure relates to a radio device comprising a first antenna configured to receive a first radio frequency (RF) signal. The radio device also includes a first front-end module (FEM) that communicates with the first antenna. The first FEM includes a packaging substrate configured to accept a plurality of components. The first FEM further includes a receiving system mounted on a packaging board. The receiving system includes multiple amplifiers. Each one of the plurality of amplifiers is provided along the corresponding one of the plurality of paths between the input of the receiving system and the output of the receiving system, and is configured to amplify the signal received by the amplifier. Will be done. The receiving system further includes a switching network that includes one or more unipolar / single throw switches. Each one of the switches couples two of the plurality of paths. The receiving system further includes a controller configured to receive the band selection signal and enable one of a plurality of amplifiers based on the band selection signal to control the switching network. The radio device further includes a transmitter / receiver configured to receive a processed version of the first RF signal from the output over a cable and generate data bits based on the processed version of the first RF signal.

In some implementations, the radio device may further include a second antenna configured to receive a second radio frequency (RF) signal and a second FEM communicating with the first antenna. The transmitter / receiver can be configured to receive a processed version of the second RF signal from the output of the second FEM and generate data bits based on the processed version of the second RF signal.

In some implementations, the receiving system may further include multiple phase shift components. Each one of the plurality of phase shift components can be provided along the corresponding one of the plurality of paths, and is said to increase the impedance for the frequency band corresponding to the other one of the plurality of paths. The signal passing through the phase shift component can be configured to phase shift.

Example F: Flexible bandwidth routing

FIG. 27 shows that, in some embodiments, the diversity receiver configuration F600 may include a DRx module F610 with a tunable matching circuit. In particular, the DRx module F610 may include one or more tunable matching circuits provided at one or more of the inputs and outputs of the DRx module F610.

It is unlikely that all of the multiple frequency bands received by the same diversity antenna 140 will be ideal impedance matching. In order to match each frequency band using a compact matching circuit, a tunable input matching circuit F616 is mounted on the input of the DRx module F610 by the DRx controller F602 (eg, based on the band selection signal from the communication controller). ) Controlled. The DRx controller F602 can tune the tunable input matching circuit F616 based on a look-up table that associates a plurality of frequency bands (or a plurality of sets of frequency bands) with tuning parameters. The tunable input matching circuit F616 can be a tunable T-type circuit, a tunable π-type circuit, or any other tunable matching circuit. In particular, the tunable input matching circuit F616 may include one or more variable components such as resistors, inductors and capacitors. These variable components may be connected in parallel and / or in series and may be connected between the input of the DRx module F610 and the input of the first multiplexer F311 or the input of the DRx module F610 and the ground voltage. You may connect between.

Similarly, depending on the transmit line 135 (or at least some cables) carrying signals in many frequency bands, it is unlikely that the entire multiple frequency band will be ideal impedance matching. In order to match each frequency band using the compact matching circuit, the tunable output matching circuit F617 is mounted on the output of the DRx module F610 (for example, based on the band selection signal from the communication controller) by the DRx controller F602. Can be controlled. The DRx controller F602 can tune the tunable output matching circuit F618 based on a look-up table that associates a plurality of frequency bands (or a plurality of sets of frequency bands) with tuning parameters. The tunable output matching circuit F617 can be a tunable T-type circuit, a tunable π-type circuit, or any other tunable matching circuit. In particular, the tunable output matching circuit F617 may include one or more variable components such as resistors, inductors and capacitors. These variable components may be connected in parallel and / or in series, and may be connected between the output of the DRx module F610 and the output of the second multiplexer F312, or the output of the DRx module F610 and the ground voltage. You may connect between.

FIG. 28 shows that, in some embodiments, the diversity receiver configuration F700 may include multiplex transmit lines. Although FIG. 28 illustrates an embodiment with two transmit lines F735a-F735b and one antenna 140, the embodiments described herein are more than two transmit lines and / or (further described below). As such), it can be implemented in an embodiment including two or more antennas.

The diversity receiver configuration F700 includes a DRx module F710 coupled to an antenna 140. The DRx module F710 is coupled to the input of the DRx module F710 (eg, the input coupled to the antenna 140a) and the output of the DRx module (eg, the first output coupled to the first transmit line F735a, or the second transmit line F735b). Also includes a certain number of routes to and from the second output). In some implementations, the DRx module F710 includes one or more bypass paths (not shown) between inputs and outputs activated by one or more bypass switches controlled by the DRx controller F702.

The DRx module F710 includes a fixed number of multiplexer paths including an input multiplexer F311 and an output multiplexer F712. The multiplexer path includes a fixed number of on-module paths (shown) including an input multiplexer F311, a bandpass filter F313a-F313d, amplifiers F314a-F314d and an output multiplexer F712. The multiplexer path may include one or more off-module paths (not shown) described herein. Again, as described herein, the amplifiers F314a-F314d can be variable gain amplifiers and / or variable current amplifiers.

The DRx controller F702 is configured to selectively activate one or more of a plurality of paths between inputs and outputs. In some implementations, the DRx controller F702 is configured to selectively activate one or more of the plurality of paths based on a band selection signal received by the DRx controller F702 (eg, from a communication controller). Will be done. The DRx controller F702 may selectively activate the path, for example, by enabling or disabling the amplifiers F314a-F314d, by controlling the multiplexers F311, F712, or via other mechanisms described herein. can.

In order to make good use of the multiplex transmission lines F735a to 735b, the DRx controller F702 controls the output multiplexer F712 based on the band selection signal, and transmits each signal propagating along the path to the transmission lines F735a to F735b (or transmission). It can be routed to a selected one of the output multiplexer outputs corresponding to the lines F735a to F735b).

In some implementations, if the bandselect signal indicates that the received signal contains a single frequency band, the DRx controller F702 controls the output multiplexer F712 to bring the signal propagating along the corresponding path to the default transmit line. Can be routed around. The default transmit line may be the same for all paths (and corresponding frequency bands), such as when one of the transmit lines F735a-F735b is short and noise is less or less introduced. The default transmit line may be different for different routes. For example, the route corresponding to the low frequency band may be routed to the first transmission line F735a , and the route corresponding to the high frequency band may be routed to the second transmission line F735b.

That is, the DRx controller F702 controls the second multiplexer F712 in response to a band selection signal indicating that one or more RF signals received in the input multiplexer F311 include a single frequency band. The amplified RF signal received at the output multiplexer input corresponding to the frequency band can be configured to route to the default output multiplexer output. As mentioned here, the default output multiplexer output may be different for different single frequency bands, or may be the same for all frequency bands.

In some implementations, if the band selection signal indicates that the received signal contains two frequency bands, the DRx controller F702 controls the output multiplexer F712 to route to the first frequency band. The signal propagating along the route can be routed to the first transmission line F735a, and the signal propagating along the path corresponding to the second frequency band can be routed to the second transmission line F735b. That is, when the two frequency bands are both high frequency bands (or low frequency bands), signals propagating along the corresponding paths can be routed to different transmission lines. Similarly, when there are three or more transmission lines, each of the three or more frequency bands can be routed to a different transmission line.

That is, the DRX controller F702 controls the second multiplexer F712 in response to a band selection signal indicating that one or more RF signals received by the input multiplexer F311 include the first frequency band and the second frequency band. Thereby, the amplified RF signal received at the output multiplexer input corresponding to the first frequency band is routed to the first output multiplexer output, and the amplified RF signal received at the output multiplexer input corresponding to the second frequency band is routed to the first output multiplexer output. It can be configured to route to the second output multiplexer output. As described here, both the first frequency band and the second frequency band may be high frequency bands or low frequency bands.

In some implementations, if the bandselect signal indicates that the received signal contains three frequency bands, the DRx controller F702 controls the output multiplexer F712 to have two paths corresponding to two of the frequency bands. Two of the signals propagating along are coupled, the coupled signal is routed along one of the transmit lines, and the signal propagating along the path corresponding to the third frequency band is along the other of the transmit lines. Can be routed around. In some implementations, the DRx controller F702 controls the output multiplexer F712 to combine the two closest to each other in the three frequency bands (eg, both in the low frequency band or both in the high frequency band). Such an implementation can simplify impedance matching at the output of the DRx module F710 or the input of the downstream module. In some implementations, the DRx controller F702 controls the output multiplexer F712 to combine the two most distant of the three frequency bands. Such an implementation can simplify the frequency band division in the downstream module.

That is, the DRx controller F702 responds to a band selection signal indicating that one or more RF signals received by the input multiplexer F311 include a first frequency band, a second frequency band, and a third frequency band. It controls F712 and (a) combines the amplified RF signal reception received at the output multiplexer input corresponding to the first frequency band with the amplified RF signal received at the output multiplexer input corresponding to the second frequency band. Generates a coupled signal, (b) routes the coupled signal to the first output multiplexer output, and (c) transfers the amplified RF signal received at the output multiplexer input corresponding to the third frequency band to the second output multiplexer output. It can be configured to be routed. As mentioned here, the first frequency band and the second frequency band can be the closest or the furthest of the three frequency bands to each other.

In some implementations, if the bandselect signal indicates that the received signal contains four frequency bands, the DRx controller F702 controls the output multiplexer F712 to provide two paths corresponding to two of the frequency bands. 2 of the signals propagating along the two paths corresponding to the other two in the frequency band, combining the two signals propagating along, and routing the first coupled signal along one of the transmit lines. One can be routed and the second coupled signal can be routed along the other side of the transmission line. In some implementations, the DRx controller F702 controls the output multiplexer F712 to combine three of the signals propagating along the three paths corresponding to the three in the frequency band and transfer the combined signal to the transmit line. A signal routed along one and propagated along a path corresponding to a fourth frequency band can be routed along the other of the transmit lines. Such an implementation can be advantageous when the three frequency bands are close to each other (eg, all in the low frequency band) and the fourth frequency band is separated (eg, the high frequency band).

In general, if the band selection signal indicates that the received signal contains more frequency bands than the existing transmission line, the DRx controller F702 controls the output multiplexer F712 to accommodate two or more of the frequency bands. Two or more of the signals propagating along the two or more paths can be combined and the combined signal can be routed to one of the transmission lines. The DRx controller F702 controls the output multiplexer F712 and can couple the frequency bands closest to or farthest from each other.

That is, the signal propagating along one of the paths can be routed by the output multiplexer F712 to a different transmission line depending on the other signals propagating along the other path. In one example, the signal propagating along the third path through the third amplifier F314c is routed to the second transmit line F735b if the third path is the only active path (4th). If the fourth path (passing through the amplifier F314d) is also active, it is routed to the first transmission line F735a (and to the second transmission line 735b).

That is, the DRx controller F702 controls the output multiplexer F712 in response to the first band selection signal, thereby routing the amplified RF signal received at the output multiplexer input to the first output multiplexer output and selecting the second band. By controlling the output multiplexer in response to the signal, the amplified RF signal received at the output multiplexer input is routed to the second output multiplexer output.

That is, the DRx module F710 constitutes a receiving system including a plurality of amplifiers F314a to F314d, and each one of the plurality of amplifiers F314a to F314d is an input of the receiving system (for example, an input of the DRx module F710 coupled to the antenna 140). And / or to the additional inputs of the DRx module F710 coupled to other antennas and to the outputs of the receiving system (eg, to the outputs of the DRx module F710 coupled to transmit lines F735a-F735b) and / or to other transmit lines. It is provided along the corresponding one of the plurality of paths between the combined DRx module F710 (additional output). Each of the amplifiers F314a to F314d is configured to amplify the RF signal received by the amplifiers F314a to F314d.

The DRx module F710 further includes an input multiplexer F311. It receives one or more RF signals at one or more input multiplexer inputs and outputs each of the one or more RF signals to one or more of the plurality of input multiplexer outputs to each of one or more of the plurality of paths. It is configured to propagate along. In some implementations, the DRx module F710 receives a single RF signal at the single input multiplexer input and transfers the single RF signal to one of the input multiplexer outputs corresponding to each frequency band indicated in the band selection signal. It can be controlled by the DRx controller F702 so as to output to the above. In some implementations, the DRx module F710 receives a multiplex RF signal at the multiplex input multiplexer input, each corresponding to one or more different sets of frequency bands indicated in the bandselect signal, of the multiplex RF signal. Each may be controlled by the DRx controller F702 to output to one or more of the input multiplexer outputs corresponding to the set in one or more frequency bands of the RF signal. That is, in general, the input multiplexer F311 receives one or more RF signals corresponding to one or more frequency bands, and transfers each RF signal to one or more paths corresponding to one or more frequency bands of the RF signal. It is controlled by the DRx controller to route along.

The DRx module F710 further includes an output multiplexer F712. It receives one or more amplified RF signals propagating along one or more of multiple paths at one or more corresponding output multiplexer inputs and each of the one or more amplified RF signals to multiple outputs. Output to the selected one of the multiplexer outputs (each coupled to one of a plurality of output transmission lines F735a-F735b).

The DRx module F710 further includes a DRx controller F702 configured to receive a band selection signal and control an input multiplexer and an output multiplexer based on the band selection signal. As described herein, the DRx controller F702 corresponds to each of one or more RF signals corresponding to one or more frequency bands to one or more frequency bands of the RF signal by controlling the input multiplexer. Route along one or more routes. Again, as described herein, the DRx controller F702 controls the output multiplexer to allow each of the one or more amplified RF signals propagating along one or more paths to the output of multiple output multiplexers. The transmission lines F735a to F735b routed to the selected one and coupled to the DRx module F710 are well utilized.

In some implementations, if the band selection signal indicates that the received signal includes a multiple frequency band, the DRx controller F702 controls the output multiplexer F712 and propagates along the path corresponding to the multiple frequency band. All are combined and the combined signal is routed to one of the transmission lines. Such an implementation can be used when the other transmit line is unavailable (eg, damaged or absent in a particular wireless communication configuration) and the transmit line received by the DRx controller F702 (eg from the communication controller). One can be implemented in response to a controller signal that it is unavailable.

That is, the DRx controller F702 responds to a band selection signal indicating that one or more RF signals received in the input multiplexer F311 includes a multiplex frequency band, and indicates that the transmission line is unavailable. By controlling the output multiplexer F712 in response to the signal, the multiplex amplified RF signal received at the multiplex output multiplexer input corresponding to the multiple frequency band is combined to generate a coupled signal, and the combined signal is sent to the output multiplexer output. Can be configured to route around.

FIG. 29 shows an embodiment of the output multiplexer F812 that can be used for the purpose of dynamic routing. The output multiplexer F812 includes a plurality of inputs F801a to F801d, each of which may be coupled to an amplifier provided along a plurality of paths corresponding to the plurality of frequency bands. The output multiplexer F812 includes a plurality of outputs F802a-F802b, each of which may be coupled to a plurality of transmission lines. The outputs F802a to F802b are coupled to the outputs of the couplers F820a to F820b, respectively. Each of the inputs F801a to F801d is coupled to the respective inputs of the couplers F820a to F820b via one of a set of unipolar / single throw (SPST) switches F830. The switch F830 is controllable via a control bus F803 that may be coupled to a DRx controller.

FIG. 30 shows another embodiment of the output multiplexer F912 that can be used for the purpose of dynamic routing. The output multiplexer F912 includes a plurality of inputs F901a to F901d, each of which may be coupled to an amplifier provided along a plurality of paths corresponding to the plurality of frequency bands. The output multiplexer F912 includes a plurality of outputs F902a to F902b, each of which may be coupled to a plurality of transmission lines. Each of the outputs F902a to F902b is coupled to the respective outputs of the couplers F920a to F920b. The first input F901a is coupled to the input of the first coupler F920a and the fourth input F901d is coupled to the input of the second coupler F920d. The second input F901b is coupled to a first unipolar / multi-throw (SPMT) switch F930a having an output coupled to each of the couplers F920a-F920b. Similarly, the third input F901c is coupled to a second SPMT switch F930b having an output coupled to each of the couplers F920a-F920b. The switches F930a to F930b can be controlled via the control bus F903 which can be coupled to the DRx controller.

Unlike the output multiplexer 812 of FIG. 8, the output multiplexer 912 of FIG. 9 does not allow the inputs 901a to 901d to be routed to any of the outputs 902a to 902b, respectively. Rather, the first input 901a is fixedly routed to the first output 902a, and the fourth input 902d is fixedly routed to the second output 902b. Such an implementation can reduce the size of the control bus 903 or simplify the control logic of the DRx controller attached to the control bus 903.

Both the output multiplexer F812 of FIG. 29 and the output multiplexer F912 of FIG. 30 were coupled to the first couplers F820a and F920a coupled to the first output multiplexer outputs F802a and F902a and to the second output multiplexer outputs F802b and F902b. Includes second couplers F820b, F920b. Further, both the output multiplexer F812 of FIG. 29 and the output multiplexer F912 of FIG. 30 have the first couplers F820a, F920a and the second couplers F820b, F920b via one or more switches (controllable by the DRx controller). Includes output multiplexer inputs F801b, F901b coupled to both. In the output multiplexer F812 of FIG. 29, the output multiplexer input F801b is coupled to the first coupler F820a and the second coupler F820b via two SPST switches. In the output multiplexer F912 of FIG. 30, the output multiplexer input F901b is coupled to the first coupler F920a and the second coupler F820b via a single SPMT switch.

FIG. 31 shows that in some embodiments, the diversity receiver configuration F1000 may include multiple antennas F1040a-F1040b. Although FIG. 31 illustrates an embodiment comprising one transmit line 135 and two antennas F1040a-F1040b, the embodiments described herein comprise two or more transmit lines and / or more than two antennas. It can be implemented in the provided embodiment.

The diversity receiver configuration F1000 includes a DRx module F1010 coupled to a first antenna F1040a and a second antenna F1040b. The DRx module F1010 combines the input of the DRx module F1010 (eg, the first input coupled to the first antenna F1040a or the second input coupled to the second antenna F1040b) and the output of the DRx module (eg, coupled to the transmit line 135). Contains a certain number of routes to and from the output). In some implementations, the DRx module F1010 includes one or more bypass paths (not shown) between inputs and outputs activated by one or more bypass switches controlled by the DRx controller F1002.

The DRx module F1010 includes a fixed number of multiplexer paths including an input multiplexer F1011 and an output multiplexer F312. The multiplexer path includes a fixed number of on-module paths (shown), which include an input multiplexer F1011, bandpass filters F313a to F313d, amplifiers F314a to F314d and an output multiplexer F312. The multiplexer path may include one or more off-module paths (not shown) described herein. Again, as described herein, the amplifiers F314a-F314d can be variable gain amplifiers and / or variable current amplifiers.

The DRx controller F1002 is configured to selectively activate one or more of a plurality of paths. In some implementations, the DRx controller F1002 is configured to selectively activate one or more of a plurality of paths based on the band selection signal received by the DRx controller F1002 (eg, from a communication controller). .. The DRx controller F1002 may selectively activate the path, for example, by enabling or disabling the amplifiers F314a-F314d, by controlling the multiplexers F1011 and F312, or via other mechanisms described herein. can.

In various diversity receiver configurations, the antennas F1040a-F1040b may support different frequency bands. For example, in one implementation, the diversity receiver configuration may include a first antenna F1040a that supports low and intermediate frequency bands and a second antenna F1040b that supports high frequency bands. Other diversity receiver configurations may include a first antenna F1040a that supports a low frequency band and a second antenna F1040b that supports an intermediate frequency band and a high frequency band. Yet another diversity receiver configuration includes a first wideband antenna F1040a that supports low frequency bands, intermediate frequency bands and high frequency bands, eliminating the need for a second antenna F1040b.

For all of these diversity receiver configurations, the DRx controller F1002 is based on antenna configuration signals (eg, received from the communication controller, or stored in and read from permanent memory or other hardwired configurations). By controlling the input multiplexer F1011 the same DRx module F1010 can be used.

In some implementations, if the antenna configuration signal indicates that the diversity receiver configuration F1000 contains only a single antenna F1040a, the DRx controller F1002 received at the single antenna F1040a by controlling the input multiplexer. The signal can be routed to all of the paths (or all of the active paths indicated by the band selection signal).

That is, the DRx controller F1002 controls the input multiplexer in response to the antenna configuration signal indicating that the diversity receiver configuration includes a single antenna, thereby displaying a plurality of RF signals received at the single input multiplexer input. It can be configured to route to all of the input multiplexer outputs of the RF signal, or to all of the plurality of input multiplexer outputs associated with one or more frequency bands of the RF signal.

In some implementations, the antenna configuration signal indicates that the diversity receiver configuration F1000 includes a first antenna F1040a that supports the low frequency band and a second antenna F1040b that supports the intermediate and high frequency bands. , The DRx controller F1002 routes the signal received in the first antenna F1040a to the first path (including the first amplifier F314a) by controlling the input multiplexer F1011, and the signal received in the second antenna F1040b. Is active as indicated by the second path (including the second amplifier F314b), the third path (including the third amplifier F314c), and the fourth path (including the fourth amplifier F314d), or the band selection signal. It can be routed to at least some of these routes.

In some implementations, the diversity receiver configuration F1000 includes a first antenna F1040a that supports a low frequency band and a low intermediate frequency band, and a second antenna F1040b that supports a high intermediate frequency band and a high frequency band. When indicated by the antenna configuration signal, the DRx controller F1002 controls the input multiplexer F1011 to route the signal received in the first antenna F1040a to the first path and the second path, and in the second antenna F1040b. The received signal can be routed to the third and fourth paths, or at least these paths that are active as indicated by the band selection signal.

In some implementations, the antenna configuration signal indicates that the diversity receiver configuration F1000 includes a first antenna F1040a that supports low and intermediate frequency bands and a second antenna F1040b that supports high frequency bands. By controlling the input multiplexer F1011, the DRx controller F1002 routes the signal received in the first antenna F1040a to the first path, the second path, and the third path, and transfers the signal received in the second antenna F1040b. It can be routed to a fourth path, or at least these paths that are active as indicated by the band selection signal.

That is, the signal propagating along a specific path (eg, the third path) is transmitted from one of the different input multiplexer inputs (coupled to one of the antennas F1040a to F1040b) by the input multiplexer F1011 (antenna configuration signal). Can be routed according to the diversity receiver configuration.

That is, the DRx controller F1002 controls the input multiplexer F1011 in response to the first antenna configuration signal, thereby routing the RF signal received at the first input multiplexer input to the input multiplexer output, and the second antenna configuration. By controlling the input multiplexer F1011 in response to the signal, the RF signal received at the input of the second input multiplexer can be configured to be routed to the output of the input multiplexer.

In general, the DRx controller F1002 may be configured to control the input multiplexer F1011 so as to route a received signal including each of the one or more frequency bands to a path corresponding to the one or more frequency bands. can. In some implementations, the input multiplexer F1011 can further function as a band divider that outputs each of the one or more frequency bands along the path corresponding to the one or more frequency bands. In one example, the input multiplexer F1011 and the bandpass filters F313a to F313d constitute such a band divider. In other implementations (as described further below), the bandpass filters F313a-F313d and the input multiplexer F1011 may be integrated in other embodiments to form a band divider.

FIG. 32 shows an embodiment of the input multiplexer F1111, which can be used for the purpose of dynamic routing. The input multiplexer F1111 includes a plurality of inputs F1101a to F1101b, each of which may be coupled to one or more antennas. The input multiplexer F1111 includes a plurality of outputs F1102a to F1102d. Each of the plurality of outputs F1102a to F1102d may be coupled to an amplifier provided along a plurality of paths corresponding to a plurality of frequency bands (for example, via a bandpass filter). Each of the inputs F1101a to F1101b is coupled to each of the outputs F1102a to F1102d via one of a set of unipolar / single throw (SPST) switches F1130. The switch F1130 is controllable via a control bus F1103 that may be coupled to a DRx controller.

FIG. 33 shows another embodiment of the input multiplexer F1211 that can be used for the purpose of dynamic routing. The input multiplexer F1211 includes a plurality of inputs F1201a to F1201b, each of which may be coupled to one or more antennas. The input multiplexer F1211 includes a plurality of outputs F1202a to F1202d. Each of the plurality of outputs F1202a to F1202d may be coupled to an amplifier provided along a plurality of paths corresponding to the plurality of frequency bands (eg, via a bandpass filter). The first input F1201a is coupled to a first output F1202a, a first multi-pole / single throw (MPST) switch F1230a and a second MPST switch F1230b. The second input F1201b is coupled to the first MPST switch F1230a, the second MPST switch F1230b and the fourth output F1202d. The switches F1230a to F1230b can be controlled via the control bus F1203 which can be coupled to the DRx controller.

The output multiplexer F1211 of FIG. 33, unlike the input multiplexer F1111 of FIG. 32, does not allow each of the inputs F1201a to F1201b to be routed to any of the outputs F1202a to F1202d. Rather, the first input F1201a is fixedly routed to the first output F1202a, and the second input F1201b is fixedly routed to the fourth output F1202d. With such an implementation, the size of the control bus F903 can be reduced, or the control logic of the DRx controller attached to the control bus F903 can be simplified. Nevertheless, the DRx controller controls the switches F1230a to F1230b based on the antenna configuration signal to send the signal from any of the inputs F1201a to F1201b to the second output F1202b and / or the third output F1202c. Can be routed around.

Both the input multiplexer F1111 of FIG. 32 and the input multiplexer F1211 of FIG. 33 operate as a multi-pole / multi-throw (MPMT) switch. In some implementations, the input multiplexers F1111 and F1211 include a filter or matching component that reduces insertion loss. Such a filter or matching component can be designed in cooperation with other components of the DRx module (for example, the bandpass filters F313a to F313d in FIG. 31). For example, the input multiplexer and bandpass filter can be integrated as a single component to reduce the total number of components. In another example, the input multiplexer can be designed for a particular output impedance (eg, one that is not 50 ohms), and the passband filter can be designed to match this impedance.

Figures 34-39 show various implementations of DRx modules with dynamic input routing and / or output routing. FIG. 34, in some embodiments, the DRx module F1310 may include a single input and two outputs. The DRx module F1310 serves as a band divider with a high-low diplexer F1311 that divides an input signal into a low frequency band and an intermediate and high frequency band, and (a first single pole / 3 throw switch and a second single pole / 5 throw switch). Includes a 2-pole / 8-throw switch F1312 (implemented as) and various filters and band-splitting diplexers. As described herein, the high and low diplexers F1311 and various filters and band division diplexers can be co-designed.

FIG. 35 shows that, in some embodiments, the DRx module F1320 may include a single input and a single output. The DRx module F1320 serves as a band divider with a high-low diplexer F1321 that divides an input signal into a low frequency band and an intermediate and high frequency band, and (first single pole / 3 throw switch and second single pole / 5 throw switch). Includes a 2-pole / 8-throw switch F1322 (implemented as) and various filters and band-splitting diplexers. As described herein, the high and low diplexer F1321 and various filters and band division diplexers can be co-designed. The DRx module F1320 includes, as an output multiplexer, a high / low coupler F1323 that filters and couples the signals received at the two inputs and outputs the combined signal.

FIG. 36 shows that, in some embodiments, the DRx module F1330 may include two inputs and three outputs. The DRx module F1330 serves as a band divider with a high-low diplexer F1331 that divides an input signal into a low frequency band and an intermediate and high frequency band, and (a first single pole / 3 throw switch and a second single pole / 2 throw switch). Includes a 3-pole / 8-throw switch F1332 (implemented as a third single-pole / 3-throw switch) and various filters and band-dividing diplexers. As described herein, the high and low diplexers F1331 and various filters and band division diplexers can be co-designed.

FIG. 37 shows that, in some embodiments, the DRx module F1340 may include two inputs and two outputs. The DRx module F1340 serves as a band divider with a high-low diplexer F1341 that divides an input signal into a low frequency band and an intermediate and high frequency band, and (a first single pole / 3 throw switch and a second single pole / 2 throw switch). Includes a 3-pole / 8-throw switch F1342 (implemented as a third single-pole / 3-throw switch) and various filters and band-dividing diplexers. As described herein, the high and low diplexer F1341 and various filters and band division diplexers can be co-designed. The DRx module F1340 includes, as part of an output multiplexer, a high and low coupler F1343 that filters and couples the signals received at the two inputs and outputs the combined signal.

FIG. 38 shows that, in some embodiments, the DRx module F1350 may include a multi-pole / multi-throw switch F1352. The DRx module F1340 includes, as a band divider, a high-low diplexer F1351 that divides an input signal into a low frequency band and an intermediate and high frequency band, a 3-pole / 8-throw switch F1352, and various filters and a band-dividing diplexer. As described herein, the high and low diplexer F1341 and various filters and band division diplexers can be co-designed. The 3-pole / 8-throw switch F1352 routes the signal received at the first pole to one of the five throws and the signal received at the second pole to one of the three throws. It is implemented as a 3-throw switch and a second 2-pole / 5-throw switch.

FIG. 39 shows that, in some embodiments, the DRx module F1360 may include an input selector F1361 and a multi-pole / multi-throw switch F1362. The DRx module F1360 has various band dividers, such as an input selector F1361 (which can operate as a 2-pole / 4-throw switch and can be implemented as shown in FIGS. 32 and 33) and a 4-pole / 10-throw switch F1362. Includes filters, matching components and band division diplexers. As described herein, the input selector F1361 and the switch F1362 as well as various filters, matching components and band division diplexers can be designed in concert. The input selector F1361 and the switch F1362 together operate as a 2-pole / 10-throw switch. As an output multiplexer, the DRx module F1360 includes an output selector F1363 which can route an input to a selected one of outputs (which may include coupling signals). The output selector F1363 can be implemented using the embodiments exemplified in FIGS. 29 and 30.

FIG. 40 shows an embodiment of a flowchart representation of a method of processing an RF signal. In some implementations (and as detailed below, as an example), method F1400 is performed by a controller such as the DRx controller F702 in FIG. 28 or the communication controller 120 in FIG. In some implementations, method F1400 can be performed by processing logic that includes hardware, firmware, software, or a combination thereof. In some implementations, method F1400 is performed by a processor that executes code stored on a non-temporary computer-readable medium (eg, memory). Briefly, method F1400 includes receiving a band selection signal and routing the received RF signal along one or more paths to a selected output to process the received RF signal.

Method F1400 begins with the controller receiving a band selection signal at block F1410. The controller may receive a band selection signal from another controller, or may receive a band selection signal from a cellular base station or other external source. The band selection signal can indicate one or more frequency bands in which the radio device sends and receives RF signals. In some implementations, the band selection signal indicates a set of frequency bands for carrier aggregation communication.

At block F1420, the controller determines an output terminal for each frequency band indicated by the band selection signal. In some implementations, the band selection signal points to a single frequency band and the controller determines the default output terminal for that single frequency band. In some implementations, the band selection signal points to two frequency bands and the controller determines different output terminals for each of the two frequency bands. In some implementations, the band selection signal points to more frequency bands than the available output terminals present, and the controller combines two or more of those frequency bands (ie, the same for two or more frequency bands). Determine the output terminal). The controller can determine to combine the closest frequency band or the furthest frequency band.

At block F1430, the controller controls the output multiplexer to route the signal for each frequency band to the determined output terminal. The controller can control the output multiplexer by opening and closing one or more SPST switches, by determining the state of one or more SPMT switches, by transmitting an output multiplexer control signal, or by another mechanism.

In particular, the above-mentioned example F regarding flexible bandwidth routing can be summarized as follows.

According to some implementations, the present disclosure relates to a receiving system that includes multiple amplifiers. Each one of the plurality of amplifiers is provided along the corresponding one of the plurality of paths between the input of the receiving system and the output of the receiving system, and receives the radio frequency (RF) signal received by the amplifier. It is configured to be amplified. The receiving system also includes an input multiplexer. It receives one or more RF signals in one or more input multiplexers and outputs each of the one or more RF signals to one or more of the outputs of the plurality of input multiplexers along one or more of the paths. Is configured to propagate. The receiving system also includes an output multiplexer. It receives one or more amplified RF signals propagating along one or more of multiple paths at one or more corresponding output multiplexer inputs and selects the one or more amplified RF signals from multiple output multiplexer outputs. It is configured to output to one. The receiving system further includes a controller configured to receive the band selection signal and control the input multiplexer and the output multiplexer based on the band selection signal.

In some embodiments, the controller controls the output multiplexer in response to a band selection signal indicating that one or more RF signals include a single frequency band, and the output multiplexer corresponds to that single frequency band. It can be configured to route the amplified RF signal received at the input to the default output multiplexer output. In some embodiments, the default output multiplexer output is different for different single frequency bands.

In some embodiments, the controller controls the output multiplexer in response to a band selection signal indicating that one or more RF signals include a first frequency band and a second frequency band, said first frequency band. The amplified RF signal received at the output multiplexer input corresponding to is routed to the first output multiplexer output, and the amplified RF signal received at the output multiplexer input corresponding to the second frequency band is routed to the second output multiplexer output. Can be configured to. In some embodiments, both the first frequency band and the second frequency band can be high frequency bands or low frequency bands.

In some embodiments, the controller controls the output multiplexer in response to a band selection signal indicating that one or more RF signals include a first frequency band, a second frequency band, and a third frequency band. The amplified RF signal received at the output multiplexer input corresponding to the first frequency band and the amplified RF signal received at the output multiplexer input corresponding to the second frequency band are combined to generate a coupled signal. The coupled signal can be routed to the first output multiplexer output and the amplified RF signal received at the output multiplexer input corresponding to the third frequency band can be routed to the second output multiplexer output. In some embodiments, the first frequency band and the second frequency band can be the closest frequency bands of the first frequency band, the second frequency band, and the third frequency band. In some embodiments, the first frequency band and the second frequency band can be the furthest frequency bands of the first frequency band, the second frequency band, and the third frequency band.

In some embodiments, the controller responds to a band selection signal indicating that one or more RF signals include a multiplex frequency band and to a control signal indicating that the transmit line is unavailable. It is configured to control the output multiplexer, combine the multiple amplified RF signals received at the multiplex output multiplexer input corresponding to the multiplex frequency band to generate a coupled signal, and route the combined signal to the output multiplexer output. be able to.

In some embodiments, the controller controls the output multiplexer in response to the first band selection signal and routes the amplified RF signal received at the output multiplexer input to the first output multiplexer output for second band selection. It can be configured to control the output multiplexer in response to a signal and route the amplified RF signal received at the output multiplexer input to the second output multiplexer output.

In some embodiments, the output multiplexer may include a first coupler coupled to the output of the first output multiplexer and a second coupler coupled to the output of the second output multiplexer. In some embodiments, the output multiplexer input can be coupled to the first and second couplers via one or more switches. In some embodiments, the controller can control the output multiplexer by controlling one or more switches. In some embodiments, one or more switches may include two unipolar / single throw (SPST) switches. In some embodiments, one or more switches may include a single unipolar / multi-throw (SPMT) switch. In some embodiments, the receiving system further comprises a plurality of transmit lines, each coupled to a plurality of output multiplexer outputs.

In some implementations, the present disclosure relates to a radio frequency (RF) module that includes a packaging substrate configured to accept multiple components. The RF module also includes a receiving system mounted on the packaging board. The receiving system includes multiple amplifiers. Each one of the plurality of amplifiers is provided along the corresponding one of the plurality of paths between the input of the receiving system and the output of the receiving system, and receives the radio frequency (RF) signal received by the amplifier. It is configured to be amplified. The receiving system receives one or more RF signals at one or more input multiplexer inputs and outputs each of the one or more RF signals to one or more selected inputs and multiplex outputs of multiple paths. Includes an input multiplexer configured to propagate along one or more of each. The receiving system receives one or more amplified RF signals propagating along one or more of a plurality of paths at one or more corresponding output multiplexer inputs, and each of the one or more amplified RF signals is received by a plurality of amplified RF signals. Output Multiplexer Includes an output multiplexer configured to output to a selected one of the outputs. The receiving system includes a controller configured to receive the band selection signal and control the input multiplexer and the output multiplexer based on the band selection signal.

In some embodiments, the RF module can be a diversity receiver front-end module (FEM).

According to some teachings, the present disclosure relates to a radio device comprising a first antenna configured to receive a first radio frequency (RF) signal. The radio device also includes a first front-end module (FEM) that communicates with the first antenna. The first FEM includes a packaging substrate configured to accept a plurality of components. The first FEM further includes a receiving system mounted on a packaging board. The receiving system includes multiple amplifiers. Each one of the plurality of amplifiers is provided along the corresponding one of the plurality of paths between the input of the receiving system and the output of the receiving system, and receives the radio frequency (RF) signal received by the amplifier. It is configured to be amplified. The receiving system receives one or more RF signals at one or more input multiplexer inputs and outputs each of the one or more RF signals to one or more selected inputs and multiplex outputs of multiple paths. Includes an input multiplexer configured to propagate along one or more of each. The receiving system receives one or more amplified RF signals propagating along one or more of a plurality of paths at one or more corresponding output multiplexer inputs, and each of the one or more amplified RF signals is received by a plurality of amplified RF signals. Output Multiplexer Includes an output multiplexer configured to output to a selected one of the outputs. The receiving system includes a controller configured to receive the band selection signal and control the input multiplexer and the output multiplexer based on the band selection signal. The radio also receives a processed version of the first RF signal from the output via multiple transmission lines, each coupled to multiple output multiplexer outputs, and data based on the processed version of the first RF signal. Includes a communication module configured to generate bits.

In some embodiments, the radio device further comprises a second antenna configured to receive a second radio frequency (RF) signal and a second FEM communicating with the second antenna. The communication module can be configured to receive a processed version of the second RF signal from the output of the second FEM and generate data bits based on the processed version of the second RF signal.

Example of combination of features

41A and 41B show, in some embodiments, the diversity receiver configuration may include one or more features of Example A described herein and one or more features of Example B described herein. Is shown. Additional details regarding Example A are described herein with reference to various figures including FIGS. 1-5, 6-10 and 98-100. Additional details regarding Example B are described herein with reference to various figures including FIGS. 1-5, 11-14, 17-19 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

42A and 42B, in some embodiments, the diversity receiver configuration may include one or more features of Example A described herein and one or more features of Example C described herein. Is shown. Additional details regarding Example A are described herein with reference to various figures including FIGS. 1-5, 6-10 and 98-100. Additional details regarding Example C are described herein with reference to various figures including FIGS. 1-5, 15, 16, 17-19 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

43A and 43B show, in some embodiments, the diversity receiver configuration may include one or more features of Example A described herein and one or more features of Example D described herein. Is shown. Additional details regarding Example A are described herein with reference to various figures including FIGS. 1-5, 6-10 and 98-100. Additional details regarding Example D are described herein with reference to various figures including FIGS. 1-5, 20-23 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

44A and 44B, in some embodiments, the diversity receiver configuration may include one or more features of Example B described herein and one or more features of Example C described herein. Is shown. Additional details regarding Example B are described herein with reference to various figures including FIGS. 1-5, 11-14, 17-19 and 98-100. Additional details regarding Example C are described herein with reference to various figures including FIGS. 1-5, 15, 16, 17-19 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

45A and 45B, in some embodiments, the diversity receiver configuration may include one or more features of Example B described herein and one or more features of Example D described herein. Is shown. Additional details regarding Example B are described herein with reference to various figures including FIGS. 1-5, 11-14, 17-19 and 98-100. Additional details regarding Example D are described herein with reference to various figures including FIGS. 1-5, 20-23 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

46A and 46B show, in some embodiments, the diversity receiver configuration may include one or more features of Example C described herein and one or more features of Example D described herein. Is shown. Additional details regarding Example C are described herein with reference to various figures including FIGS. 1-5, 15, 16, 17-19 and 98-100. Additional details regarding Example D are described herein with reference to various figures including FIGS. 1-5, 20-23 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

47A and 47B show, in some embodiments, a diversity receiver configuration with one or more features of Example A described herein and one or more features of Example B described herein. It is shown that it may include one or more features of Example C. Additional details regarding Example A are described herein with reference to various figures including FIGS. 1-5, 6-10 and 98-100. Additional details regarding Example B are described herein with reference to various figures including FIGS. 1-5, 11-14, 17-19 and 98-100. Additional details regarding Example C are described herein with reference to various figures including FIGS. 1-5, 15, 16, 17-19 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

48A and 48B show, in some embodiments, a diversity receiver configuration with one or more features of Example A described herein and one or more features of Example B described herein. It is shown that it may include one or more features of Example D. Additional details regarding Example A are described herein with reference to various figures including FIGS. 1-5, 6-10 and 98-100. Additional details regarding Example B are described herein with reference to various figures including FIGS. 1-5, 11-14, 17-19 and 98-100. Additional details regarding Example D are described herein with reference to various figures including FIGS. 1-5, 20-23 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

49A and 49B show, in some embodiments, a diversity receiver configuration with one or more features of Example A described herein and one or more features of Example C described herein. It is shown that it may include one or more features of Example D. Additional details regarding Example A are described herein with reference to various figures including FIGS. 1-5, 6-10 and 98-100. Additional details regarding Example C are described herein with reference to various figures including FIGS. 1-5, 15, 16, 17-19 and 98-100. Additional details regarding Example D are described herein with reference to various figures including FIGS. 1-5, 20-23 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

50A and 50B show, in some embodiments, a diversity receiver configuration with one or more features of Example B described herein and one or more features of Example C described herein. It is shown that it may include one or more features of Example D. Additional details regarding Example B are described herein with reference to various figures including FIGS. 1-5, 11-14, 17-19 and 98-100. Additional details regarding Example C are described herein with reference to various figures including FIGS. 1-5, 15, 16, 17-19 and 98-100. Additional details regarding Example D are described herein with reference to various figures including FIGS. 1-5, 20-23 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

51A and 51B show, in some embodiments, a diversity receiver configuration with one or more features of Example A described herein and one or more features of Example B described herein. It is shown that one or more features of Example C to be described and one or more features of Example D described herein can be included. Additional details regarding Example A are described herein with reference to various figures including FIGS. 1-5, 6-10 and 98-100. Additional details regarding Example B are described herein with reference to various figures including FIGS. 1-5, 11-14, 17-19 and 98-100. Additional details regarding Example C are described herein with reference to various figures including FIGS. 1-5, 15, 16, 17-19 and 98-100. Additional details regarding Example D are described herein with reference to various figures including FIGS. 1-5, 20-23 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

52A and 52B show, in some embodiments, the diversity receiver configuration with one or more features of Example A described herein and one or more features of Example B described herein. It is shown that it may include one or more features of Example E. Additional details regarding Example A are described herein with reference to various figures including FIGS. 1-5, 6-10 and 98-100. Additional details regarding Example B are described herein with reference to various figures including FIGS. 1-5, 11-14, 17-19 and 98-100. Additional details regarding Example E are described herein with reference to various figures including FIGS. 1-5, 24-26 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

53A and 53B show, in some embodiments, a diversity receiver configuration with one or more features of Example A described herein and one or more features of Example C described herein. It is shown that it may include one or more features of Example E. Additional details regarding Example A are described herein with reference to various figures including FIGS. 1-5, 6-10 and 98-100. Additional details regarding Example C are described herein with reference to various figures including FIGS. 1-5, 15, 16, 17-19 and 98-100. Additional details regarding Example E are described herein with reference to various figures including FIGS. 1-5, 24-26 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

54A and 54B show, in some embodiments, the diversity receiver configuration with one or more features of Example A described herein and one or more features of Example D described herein. It is shown that it may include one or more features of Example E. Additional details regarding Example A are described herein with reference to various figures including FIGS. 1-5, 6-10 and 98-100. Additional details regarding Example D are described herein with reference to various figures including FIGS. 1-5, 20-23 and 98-100. Additional details regarding Example E are described herein with reference to various figures including FIGS. 1-5, 24-26 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

55A and 55B show, in some embodiments, a diversity receiver configuration with one or more features of Example B described herein and one or more features of Example C described herein. It is shown that it may include one or more features of Example E. Additional details regarding Example B are described herein with reference to various figures including FIGS. 1-5, 11-14, 17-19 and 98-100. Additional details regarding Example C are described herein with reference to various figures including FIGS. 1-5, 15, 16, 17-19 and 98-100. Additional details regarding Example E are described herein with reference to various figures including FIGS. 1-5, 24-26 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

56A and 56B show, in some embodiments, the diversity receiver configuration with one or more features of Example B described herein and one or more features of Example D described herein. It is shown that it may include one or more features of Example E. Additional details regarding Example B are described herein with reference to various figures including FIGS. 1-5, 11-14, 17-19 and 98-100. Additional details regarding Example D are described herein with reference to various figures including FIGS. 1-5, 20-23 and 98-100. Additional details regarding Example E are described herein with reference to various figures including FIGS. 1-5, 24-26 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

57A and 57B show, in some embodiments, a diversity receiver configuration with one or more features of Example C described herein and one or more features of Example D described herein. It is shown that it may include one or more features of Example E. Additional details regarding Example C are described herein with reference to various figures including FIGS. 1-5, 15, 16, 17-19 and 98-100. Additional details regarding Example D are described herein with reference to various figures including FIGS. 1-5, 20-23 and 98-100. Additional details regarding Example E are described herein with reference to various figures including FIGS. 1-5, 24-26 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

58A and 58B show, in some embodiments, the diversity receiver configuration with one or more features of Example A described herein and one or more features of Example B described herein. It is shown that one or more features of Example C to be described and one or more features of Example E described herein can be included. Additional details regarding Example A are described herein with reference to various figures including FIGS. 1-5, 6-10 and 98-100. Additional details regarding Example B are described herein with reference to various figures including FIGS. 1-5, 11-14, 17-19 and 98-100. Additional details regarding Example C are described herein with reference to various figures including FIGS. 1-5, 15, 16, 17-19 and 98-100. Additional details regarding Example E are described herein with reference to various figures including FIGS. 1-5, 24-26 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

59A and 59B show, in some embodiments, the diversity receiver configuration with one or more features of Example A described herein and one or more features of Example B described herein. It is shown that one or more features of Example D to be made and one or more features of Example E described herein can be included. Additional details regarding Example A are described herein with reference to various figures including FIGS. 1-5, 6-10 and 98-100. Additional details regarding Example B are described herein with reference to various figures including FIGS. 1-5, 11-14, 17-19 and 98-100. Additional details regarding Example D are described herein with reference to various figures including FIGS. 1-5, 20-23 and 98-100. Additional details regarding Example E are described herein with reference to various figures including FIGS. 1-5, 24-26 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

60A and 60B show, in some embodiments, a diversity receiver configuration with one or more features of Example A described herein and one or more features of Example C described herein. It is shown that one or more features of Example D to be made and one or more features of Example E described herein can be included. Additional details regarding Example A are described herein with reference to various figures including FIGS. 1-5, 6-10 and 98-100. Additional details regarding Example C are described herein with reference to various figures including FIGS. 1-5, 15, 16, 17-19 and 98-100. Additional details regarding Example D are described herein with reference to various figures including FIGS. 1-5, 20-23 and 98-100. Additional details regarding Example E are described herein with reference to various figures including FIGS. 1-5, 24-26 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

61A and 61B show, in some embodiments, a diversity receiver configuration with one or more features of Example B described herein and one or more features of Example C described herein. It is shown that one or more features of Example D to be made and one or more features of Example E described herein can be included. Additional details regarding Example B are described herein with reference to various figures including FIGS. 1-5, 11-14, 17-19 and 98-100. Additional details regarding Example C are described herein with reference to various figures including FIGS. 1-5, 15, 16, 17-19 and 98-100. Additional details regarding Example D are described herein with reference to various figures including FIGS. 1-5, 20-23 and 98-100. Additional details regarding Example E are described herein with reference to various figures including FIGS. 1-5, 24-26 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

62A and 62B show, in some embodiments, a diversity receiver configuration with one or more features of Example A described herein and one or more features of Example B described herein. It is shown that one or more features of Example C to be described, one or more features of Example D described herein, and one or more features of Example E described herein can be included. Additional details regarding Example A are described herein with reference to various figures including FIGS. 1-5, 6-10 and 98-100. Additional details regarding Example B are described herein with reference to various figures including FIGS. 1-5, 11-14, 17-19 and 98-100. Additional details regarding Example C are described herein with reference to various figures including FIGS. 1-5, 15, 16, 17-19 and 98-100. Additional details regarding Example D are described herein with reference to various figures including FIGS. 1-5, 20-23 and 98-100. Additional details regarding Example E are described herein with reference to various figures including FIGS. 1-5, 24-26 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

FIG. 63 illustrates, in some embodiments, a diversity receiver configuration with one or more features of Example A described herein and one or more features of Example B described herein. It is shown that it may include one or more features of Example F. Additional details regarding Example A are described herein with reference to various figures including FIGS. 1-5, 6-10 and 98-100. Additional details regarding Example B are described herein with reference to various figures including FIGS. 1-5, 11-14, 17-19 and 98-100. Additional details regarding Example F are described herein with reference to various figures including FIGS. 1-5, 27-40 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

FIG. 64 illustrates, in some embodiments, a diversity receiver configuration with one or more features of Example A described herein and one or more features of Example C described herein. It is shown that it may include one or more features of Example F. Additional details regarding Example A are described herein with reference to various figures including FIGS. 1-5, 6-10 and 98-100. Additional details regarding Example C are described herein with reference to various figures including FIGS. 1-5, 15, 16, 17-19 and 98-100. Additional details regarding Example F are described herein with reference to various figures including FIGS. 1-5, 27-40 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

FIG. 65 illustrates, in some embodiments, a diversity receiver configuration with one or more features of Example A described herein and one or more features of Example D described herein. It is shown that it may include one or more features of Example F. Additional details regarding Example A are described herein with reference to various figures including FIGS. 1-5, 6-10 and 98-100. Additional details regarding Example D are described herein with reference to various figures including FIGS. 1-5, 20-23 and 98-100. Additional details regarding Example F are described herein with reference to various figures including FIGS. 1-5, 27-40 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

FIG. 66 illustrates, in some embodiments, a diversity receiver configuration with one or more features of Example B described herein and one or more features of Example C described herein. It is shown that it may include one or more features of Example F. Additional details regarding Example B are described herein with reference to various figures including FIGS. 1-5, 11-14, 17-19 and 98-100. Additional details regarding Example C are described herein with reference to various figures including FIGS. 1-5, 15, 16, 17-19 and 98-100. Additional details regarding Example F are described herein with reference to various figures including FIGS. 1-5, 27-40 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

FIG. 67 describes, in some embodiments, a diversity receiver configuration with one or more features of Example B described herein and one or more features of Example D described herein. It is shown that it may include one or more features of Example F. Additional details regarding Example B are described herein with reference to various figures including FIGS. 1-5, 11-14, 17-19 and 98-100. Additional details regarding Example D are described herein with reference to various figures including FIGS. 1-5, 20-23 and 98-100. Additional details regarding Example F are described herein with reference to various figures including FIGS. 1-5, 27-40 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

FIG. 68 illustrates, in some embodiments, a diversity receiver configuration with one or more features of Example C described herein and one or more features of Example D described herein. It is shown that it may include one or more features of Example F. Additional details regarding Example C are described herein with reference to various figures including FIGS. 1-5, 15, 16, 17-19 and 98-100. Additional details regarding Example D are described herein with reference to various figures including FIGS. 1-5, 20-23 and 98-100. Additional details regarding Example F are described herein with reference to various figures including FIGS. 1-5, 27-40 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

FIG. 69 illustrates, in some embodiments, a diversity receiver configuration with one or more features of Example A described herein and one or more features of Example B described herein. It is shown that one or more features of Example C and one or more features of Example F described herein can be included. Additional details regarding Example A are described herein with reference to various figures including FIGS. 1-5, 6-10 and 98-100. Additional details regarding Example B are described herein with reference to various figures including FIGS. 1-5, 11-14, 17-19 and 98-100. Additional details regarding Example C are described herein with reference to various figures including FIGS. 1-5, 15, 16, 17-19 and 98-100. Additional details regarding Example F are described herein with reference to various figures including FIGS. 1-5, 27-40 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

FIG. 70 describes, in some embodiments, a diversity receiver configuration with one or more features of Example A described herein and one or more features of Example B described herein. It is shown that one or more features of Example D and one or more features of Example F described herein can be included. Additional details regarding Example A are described herein with reference to various figures including FIGS. 1-5, 6-10 and 98-100. Additional details regarding Example B are described herein with reference to various figures including FIGS. 1-5, 11-14, 17-19 and 98-100. Additional details regarding Example D are described herein with reference to various figures including FIGS. 1-5, 20-23 and 98-100. Additional details regarding Example F are described herein with reference to various figures including FIGS. 1-5, 27-40 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

FIG. 71 describes, in some embodiments, a diversity receiver configuration with one or more features of Example A described herein and one or more features of Example C described herein. It is shown that one or more features of Example D and one or more features of Example F described herein can be included. Additional details regarding Example A are described herein with reference to various figures including FIGS. 1-5, 6-10 and 98-100. Additional details regarding Example C are described herein with reference to various figures including FIGS. 1-5, 15, 16, 17-19 and 98-100. Additional details regarding Example D are described herein with reference to various figures including FIGS. 1-5, 20-23 and 98-100. Additional details regarding Example F are described herein with reference to various figures including FIGS. 1-5, 27-40 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

FIG. 72 describes, in some embodiments, a diversity receiver configuration with one or more features of Example B described herein and one or more features of Example C described herein. It is shown that one or more features of Example D and one or more features of Example F described herein can be included. Additional details regarding Example B are described herein with reference to various figures including FIGS. 1-5, 11-14, 17-19 and 98-100. Additional details regarding Example C are described herein with reference to various figures including FIGS. 1-5, 15, 16, 17-19 and 98-100. Additional details regarding Example D are described herein with reference to various figures including FIGS. 1-5, 20-23 and 98-100. Additional details regarding Example F are described herein with reference to various figures including FIGS. 1-5, 27-40 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

FIG. 73 describes, in some embodiments, a diversity receiver configuration with one or more features of Example A described herein and one or more features of Example B described herein. It is shown that one or more features of Example C, one or more features of Example D described herein, and one or more features of Example F described herein can be included. Additional details regarding Example A are described herein with reference to various figures including FIGS. 1-5, 6-10 and 98-100. Additional details regarding Example B are described herein with reference to various figures including FIGS. 1-5, 11-14, 17-19 and 98-100. Additional details regarding Example C are described herein with reference to various figures including FIGS. 1-5, 15, 16, 17-19 and 98-100. Additional details regarding Example D are described herein with reference to various figures including FIGS. 1-5, 20-23 and 98-100. Additional details regarding Example F are described herein with reference to various figures including FIGS. 1-5, 27-40 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

FIG. 74, in some embodiments, a diversity receiver configuration is described herein with one or more features of Example A described herein and one or more features of Example B described herein. It is shown that one or more features of Example E and one or more features of Example F described herein can be included. Additional details regarding Example A are described herein with reference to various figures including FIGS. 1-5, 6-10 and 98-100. Additional details regarding Example B are described herein with reference to various figures including FIGS. 1-5, 11-14, 17-19 and 98-100. Additional details regarding Example E are described herein with reference to various figures including FIGS. 1-5, 24-26 and 98-100. Additional details regarding Example F are described herein with reference to various figures including FIGS. 1-5, 27-40 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

FIG. 75, in some embodiments, a diversity receiver configuration is described herein with one or more features of Example A described herein and one or more features of Example C described herein. It is shown that one or more features of Example E and one or more features of Example F described herein can be included. Additional details regarding Example A are described herein with reference to various figures including FIGS. 1-5, 6-10 and 98-100. Additional details regarding Example C are described herein with reference to various figures including FIGS. 1-5, 15, 16, 17-19 and 98-100. Additional details regarding Example E are described herein with reference to various figures including FIGS. 1-5, 24-26 and 98-100. Additional details regarding Example F are described herein with reference to various figures including FIGS. 1-5, 27-40 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

FIG. 76 describes, in some embodiments, a diversity receiver configuration with one or more features of Example A described herein and one or more features of Example D described herein. It is shown that one or more features of Example E and one or more features of Example F described herein can be included. Additional details regarding Example A are described herein with reference to various figures including FIGS. 1-5, 6-10 and 98-100. Additional details regarding Example D are described herein with reference to various figures including FIGS. 1-5, 20-23 and 98-100. Additional details regarding Example E are described herein with reference to various figures including FIGS. 1-5, 24-26 and 98-100. Additional details regarding Example F are described herein with reference to various figures including FIGS. 1-5, 27-40 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

FIG. 77 describes, in some embodiments, a diversity receiver configuration with one or more features of Example B described herein and one or more features of Example C described herein. It is shown that one or more features of Example E and one or more features of Example F described herein can be included. Additional details regarding Example B are described herein with reference to various figures including FIGS. 1-5, 11-14, 17-19 and 98-100. Additional details regarding Example C are described herein with reference to various figures including FIGS. 1-5, 15, 16, 17-19 and 98-100. Additional details regarding Example E are described herein with reference to various figures including FIGS. 1-5, 24-26 and 98-100. Additional details regarding Example F are described herein with reference to various figures including FIGS. 1-5, 27-40 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

FIG. 78 describes, in some embodiments, a diversity receiver configuration with one or more features of Example B described herein and one or more features of Example D described herein. It is shown that one or more features of Example E and one or more features of Example F described herein can be included. Additional details regarding Example B are described herein with reference to various figures including FIGS. 1-5, 11-14, 17-19 and 98-100. Additional details regarding Example D are described herein with reference to various figures including FIGS. 1-5, 20-23 and 98-100. Additional details regarding Example E are described herein with reference to various figures including FIGS. 1-5, 24-26 and 98-100. Additional details regarding Example F are described herein with reference to various figures including FIGS. 1-5, 27-40 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

FIG. 79 describes, in some embodiments, a diversity receiver configuration with one or more features of Example C described herein and one or more features of Example D described herein. It is shown that one or more features of Example E and one or more features of Example F described herein can be included. Additional details regarding Example C are described herein with reference to various figures including FIGS. 1-5, 15, 16, 17-19 and 98-100. Additional details regarding Example D are described herein with reference to various figures including FIGS. 1-5, 20-23 and 98-100. Additional details regarding Example E are described herein with reference to various figures including FIGS. 1-5, 24-26 and 98-100. Additional details regarding Example F are described herein with reference to various figures including FIGS. 1-5, 27-40 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

FIG. 80 describes, in some embodiments, a diversity receiver configuration with one or more features of Example A described herein and one or more features of Example B described herein. It is shown that one or more features of Example C, one or more features of Example E described herein, and one or more features of Example F described herein can be included. Additional details regarding Example A are described herein with reference to various figures including FIGS. 1-5, 6-10 and 98-100. Additional details regarding Example B are described herein with reference to various figures including FIGS. 1-5, 11-14, 17-19 and 98-100. Additional details regarding Example C are described herein with reference to various figures including FIGS. 1-5, 15, 16, 17-19 and 98-100. Additional details regarding Example E are described herein with reference to various figures including FIGS. 1-5, 24-26 and 98-100. Additional details regarding Example F are described herein with reference to various figures including FIGS. 1-5, 27-40 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

FIG. 81 describes, in some embodiments, a diversity receiver configuration with one or more features of Example A described herein and one or more features of Example B described herein. It is shown that one or more features of Example D, one or more features of Example E described herein, and one or more features of Example F described herein can be included. Additional details regarding Example A are described herein with reference to various figures including FIGS. 1-5, 6-10 and 98-100. Additional details regarding Example B are described herein with reference to various figures including FIGS. 1-5, 11-14, 17-19 and 98-100. Additional details regarding Example D are described herein with reference to various figures including FIGS. 1-5, 20-23 and 98-100. Additional details regarding Example E are described herein with reference to various figures including FIGS. 1-5, 24-26 and 98-100. Additional details regarding Example F are described herein with reference to various figures including FIGS. 1-5, 27-40 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

FIG. 82 describes, in some embodiments, a diversity receiver configuration with one or more features of Example A described herein and one or more features of Example C described herein. It is shown that one or more features of Example D, one or more features of Example E described herein, and one or more features of Example F described herein can be included. Additional details regarding Example A are described herein with reference to various figures including FIGS. 1-5, 6-10 and 98-100. Additional details regarding Example C are described herein with reference to various figures including FIGS. 1-5, 15, 16, 17-19 and 98-100. Additional details regarding Example D are described herein with reference to various figures including FIGS. 1-5, 20-23 and 98-100. Additional details regarding Example E are described herein with reference to various figures including FIGS. 1-5, 24-26 and 98-100. Additional details regarding Example F are described herein with reference to various figures including FIGS. 1-5, 27-40 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

FIG. 83 describes, in some embodiments, a diversity receiver configuration with one or more features of Example B described herein and one or more features of Example C described herein. It is shown that one or more features of Example D, one or more features of Example E described herein, and one or more features of Example F described herein can be included. Additional details regarding Example B are described herein with reference to various figures including FIGS. 1-5, 11-14, 17-19 and 98-100. Additional details regarding Example C are described herein with reference to various figures including FIGS. 1-5, 15, 16, 17-19 and 98-100. Additional details regarding Example D are described herein with reference to various figures including FIGS. 1-5, 20-23 and 98-100. Additional details regarding Example E are described herein with reference to various figures including FIGS. 1-5, 24-26 and 98-100. Additional details regarding Example F are described herein with reference to various figures including FIGS. 1-5, 27-40 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

FIG. 84 describes, in some embodiments, a diversity receiver configuration with one or more features of Example A described herein and one or more features of Example B described herein. One or more features of Example C, one or more features of Example D described herein, one or more features of Example E described herein, and one or more features of Example F described herein. Indicates that Additional details regarding Example A are described herein with reference to various figures including FIGS. 1-5, 6-10 and 98-100. Additional details regarding Example B are described herein with reference to various figures including FIGS. 1-5, 11-14, 17-19 and 98-100. Additional details regarding Example C are described herein with reference to various figures including FIGS. 1-5, 15, 16, 17-19 and 98-100. Additional details regarding Example D are described herein with reference to various figures including FIGS. 1-5, 20-23 and 98-100. Additional details regarding Example E are described herein with reference to various figures including FIGS. 1-5, 24-26 and 98-100. Additional details regarding Example F are described herein with reference to various figures including FIGS. 1-5, 27-40 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

85A and 85B show that, in some embodiments, the diversity receiver configuration may include one or more features of Example A described herein and one or more features of Example E described herein. Is shown. Additional details regarding Example A are described herein with reference to various figures including FIGS. 1-5, 6-10 and 98-100. Additional details regarding Example E are described herein with reference to various figures including FIGS. 1-5, 24-26 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

86A and 86B show that, in some embodiments, the diversity receiver configuration may include one or more features of Example B described herein and one or more features of Example E described herein. Is shown. Additional details regarding Example B are described herein with reference to various figures including FIGS. 1-5, 11-14, 17-19 and 98-100. Additional details regarding Example E are described herein with reference to various figures including FIGS. 1-5, 24-26 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

87A and 87B show that, in some embodiments, the diversity receiver configuration may include one or more features of Example C described herein and one or more features of Example E described herein. Is shown. Additional details regarding Example C are described herein with reference to various figures including FIGS. 1-5, 15, 16, 17-19 and 98-100. Additional details regarding Example E are described herein with reference to various figures including FIGS. 1-5, 24-26 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

88A and 88B, in some embodiments, the diversity receiver configuration may include one or more features of Example D described herein and one or more features of Example E described herein. Is shown. Additional details regarding Example D are described herein with reference to various figures including FIGS. 1-5, 20-23 and 98-100. Additional details regarding Example E are described herein with reference to various figures including FIGS. 1-5, 24-26 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

FIG. 89 shows that, in some embodiments, the diversity receiver configuration may include one or more features of Example A described herein and one or more features of Example F described herein. .. Additional details regarding Example A are described herein with reference to various figures including FIGS. 1-5, 6-10 and 98-100. Additional details regarding Example F are described herein with reference to various figures including FIGS. 1-5, 27-40 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

FIG. 90 shows that, in some embodiments, the diversity receiver configuration may include one or more features of Example B described herein and one or more features of Example F described herein. .. Additional details regarding Example B are described herein with reference to various figures including FIGS. 1-5, 11-14, 17-19 and 98-100. Additional details regarding Example F are described herein with reference to various figures including FIGS. 1-5, 27-40 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

FIG. 91 shows that, in some embodiments, the diversity receiver configuration may include one or more features of Example C described herein and one or more features of Example F described herein. .. Additional details regarding Example C are described herein with reference to various figures including FIGS. 1-5, 15, 16, 17-19 and 98-100. Additional details regarding Example F are described herein with reference to various figures including FIGS. 1-5, 27-40 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

FIG. 92 shows that, in some embodiments, the diversity receiver configuration may include one or more features of Example D described herein and one or more features of Example F described herein. .. Additional details regarding Example D are described herein with reference to various figures including FIGS. 1-5, 20-23 and 98-100. Additional details regarding Example F are described herein with reference to various figures including FIGS. 1-5, 27-40 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

FIG. 93 shows that, in some embodiments, the diversity receiver configuration may include one or more features of Example E described herein and one or more features of Example F described herein. .. Additional details regarding Example E are described herein with reference to various figures including FIGS. 1-5, 24-26, and 98-100. Additional details regarding Example F are described herein with reference to various figures including FIGS. 1-5, 27-40, and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

FIG. 94 illustrates, in some embodiments, a diversity receiver configuration with one or more features of Example A described herein and one or more features of Example E described herein. It is shown that it may include one or more features of Example F. Additional details regarding Example A are described herein with reference to various figures including FIGS. 1-5, 6-10 and 98-100. Additional details regarding Example E are described herein with reference to various figures including FIGS. 1-5, 24-26 and 98-100. Additional details regarding Example F are described herein with reference to various figures including FIGS. 1-5, 27-40 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

FIG. 95, in some embodiments, a diversity receiver configuration is described herein with one or more features of Example B described herein and one or more features of Example E described herein. It is shown that it may include one or more features of Example F. Additional details regarding Example B are described herein with reference to various figures including FIGS. 1-5, 11-14, 17-19 and 98-100. Additional details regarding Example E are described herein with reference to various figures including FIGS. 1-5, 24-26 and 98-100. Additional details regarding Example F are described herein with reference to various figures including FIGS. 1-5, 27-40 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

FIG. 96 illustrates, in some embodiments, a diversity receiver configuration with one or more features of Example C described herein and one or more features of Example E described herein. It is shown that it may include one or more features of Example F. Additional details regarding Example C are described herein with reference to various figures including FIGS. 1-5, 15, 16, 17-19 and 98-100. Additional details regarding Example E are described herein with reference to various figures including FIGS. 1-5, 24-26 and 98-100. Additional details regarding Example F are described herein with reference to various figures including FIGS. 1-5, 27-40 and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

FIG. 97 describes, in some embodiments, a diversity receiver configuration with one or more features of Example D described herein and one or more features of Example E described herein. It is shown that it may include one or more features of Example F. Additional details regarding Example D are described herein with reference to various figures including FIGS. 1-5, 20-23, and 98-100. Additional details regarding Example E are described herein with reference to various figures including FIGS. 1-5, 24-26, and 98-100. Additional details regarding Example F are described herein with reference to various figures including FIGS. 1-5, 27-40, and 98-100.

In some embodiments, the combination of features described above can provide each example, all of the examples in the combination, or some or all of the advantages and / or functions associated with any combination thereof.

Product and architecture examples

FIG. 98 shows, in some embodiments, some or all of the diversity receiver configurations including some or all of the diversity receiver configurations (eg, FIGS. 41-97) having a combination of features in one module. Indicates that it can be implemented in whole or in part. Such a module can be, for example, a front-end module (FEM). Such a module can be, for example, a diversity receiver (DRx) FEM.

In the example of FIG. 98, the module 1000 may include a packaging substrate 1002. A certain number of parts can be mounted on the packaging substrate 1002. For example, a controller 1004 (which may include a front-end power management integrated circuit [FE-PIMC]), a combination assembly 1006 having one or more features described herein, a multiplexer assembly 1010, and (including one or more band-passing filters). The filter bank 1008 can be mounted and / or mounted on and / or in the packaging substrate 1002. Other components, such as a fixed number of SMT devices 1012, can also be mounted on the packaging substrate 1002. It is understood that some component (s) can be mounted on top of another component (s), even though all of the various components are drawn to be laid out on the packaging board 1002.

FIG. 99 shows, in some embodiments, some or all of the diversity receiver configurations including some or all of the diversity receiver configurations (eg, FIGS. 41-97) having a combination of features in one architecture. Indicates that it can be implemented in whole or in part. Such an architecture may include one or more modules and be configured to provide front-end functionality such as diversity receiver (DRx) front-end functionality.

In the example of FIG. 99, the architecture 1100 includes a controller 1104 (which may include a front-end power management integrated circuit [FE-PIMC]), a combination assembly 1106, a multiplexer assembly 1110, and one of the features described herein. It may include a filter bank 1108 (which may include one or more band-passing filters). Other components, such as a constant number of SMT devices 1112, can also be implemented in architecture 1100.

In some implementations, devices and / or circuits with one or more features described herein may be included in RF electronic devices such as radio devices. Such devices and / or circuits can be mounted directly on the radio device in the modular form described herein, or in any combination thereof. In some embodiments, such radios may include, for example, cellular phones, smartphones, handheld radios with or without telephone functionality, wireless tablets and the like.

FIG. 100 depicts a representative radio device 1400 with one or more of the advantageous features described herein. In the context of one or more modules with one or more features described herein, such modules are generally framed 1401 (eg, mountable as a front-end module), diversity RF module 1411 (eg, mountable as a downstream module). , And the diversity receiver (DRx) module 1000 (which can be implemented as a front-end module, for example).

Referring to FIG. 100, the power amplifier (PA) 1420 receives each RF signal from a transmitter / receiver 1410 configured and operable to generate an RF signal to be amplified and transmitted and processes the received signal. be able to. The transmitter / receiver 1410 is shown to interact with a baseband subsystem 1408 configured to provide a conversion between a data and / or audio signal suitable for the user and an RF signal suitable for the transmitter / receiver 1410. The transmitter / receiver 1410 can also communicate with a power management component 1406 configured to manage power for the operation of the radio device 1400. Such power management can also control the operation of the baseband subsystem 1408 and modules 1401, 1411 and 1000.

The baseband subsystem 1408 is shown to be connected to the user interface 1402 to facilitate various inputs and outputs of voice and / or data given to and / from the user. The baseband subsystem 1408 can also be connected to a memory 1404 configured to store data and / or instructions that facilitate the operation of the radio and / or provide information storage for the user.

In a representative radio device 1400, the output of the PA 1420 is shown to be matched and routed to each duplexer 1424 (via the respective matching circuit 1422). The amplified and filtered signal can be routed to the primary antenna 1416 via the antenna switch 1414 for transmission. In some embodiments, the duplexer 1424 allows simultaneous transmission and reception operations using a common antenna (eg, primary antenna 1416). In FIG. 100, the received signal is shown to be routed to an "Rx" path, which may include, for example, a low noise amplifier (LNA).

The wireless device also includes a diversity antenna 1426 and a diversity receiver module 1000 that receives signals from the diversity antenna 1426. The diversity receiver module 1000 processes the received signal and transmits the processed signal to the diversity RF module 1411 via the transmission line 1435. The diversity RF module 1411 further processes the signal before supplying it to the transmitter / receiver 1410.

In some embodiments, Example A described herein can be considered to include a first feature of a radio frequency (RF) receiving system and related devices and methods. Similarly, Example B described herein can be considered to include a second feature of a radio frequency (RF) receiving system and related devices and methods. Similarly, Example C described herein can be considered to include a third feature of radio frequency (RF) receiving systems and related devices and methods. Similarly, Example D described herein can be considered to include a fourth feature of radio frequency (RF) receiving systems and related devices and methods. Similarly, Example E described herein can be considered to include a fifth feature of radio frequency (RF) receiving systems and related devices and methods. Similarly, Example F described herein can be considered to include a sixth feature of radio frequency (RF) receiving systems and related devices and methods.

The various cellular frequency bands described herein can be implemented in one or more features of the present disclosure. Examples of such bands are listed in Table 1. As you can see, at least some of the bands can be divided into subbands. As will also be understood, one or more features of the present disclosure can also implement frequency ranges without indications, such as the example in Table 1.

Throughout the specification and claims, terms such as "contain" have a comprehensive meaning as opposed to an exclusive or exhaustive meaning, i.e., "contains," unless it is clear in the context that this is not the case. Is not limited to these. " The term "join" commonly used herein refers to two or more elements that can be either directly connected or connected via one or more intermediate elements. In addition, the terms "here", "above", "below" and the like to the same effect, as used herein, refer to the entire application and not any particular part of the application. Where the context allows, the terms in the above detailed description using the singular or plural may also include the plural or singular, respectively. For terms "or" and "or" that refer to a list of two or more items, the term covers all of the following interpretations. That is, any item in the list, all items in the list, and any combination of items in the list.

The above detailed description of embodiments of the invention is not intended to be exclusive, i.e., to limit the invention to the exact embodiments of the disclosure. Although specific embodiments of the present invention and examples thereof have been described above for purposes of illustration, various equal modifications are possible within the scope of the invention, as will be appreciated by those skilled in the art. For example, processes or blocks are presented in a given order, but alternative embodiments may be to perform routines with steps in different orders or to use a system with blocks, some processes or blocks being deleted. Can be moved, added, subdivided, combined, and / or modified. Each of these processes or blocks can be implemented in a variety of different ways. It may also be indicated that the processes or blocks are performed in series, but these processes or blocks may instead be performed in parallel or at different times.

The teaching of the present invention given herein is not necessarily limited to the above-mentioned system, and can be applied to other systems. The various embodiment elements and actions described above can be combined to give further embodiments.

Although some embodiments of the invention have been described, these embodiments are presented by way of example only and are not intended to limit the scope of the present disclosure. In fact, the novel methods and systems described herein can be embodied in various other forms. Moreover, various omissions, substitutions and changes in the methods and forms of the system described herein may be made without departing from the gist of the present disclosure. It is intended that the appended claims and their equivalents cover such forms or modifications that fall within the scope and gist of the present disclosure.

Claims (21)

It ’s a receiving system,
A first amplifier arranged along a first path between the input of the receiving system and the output of the receiving system, the first being configured to amplify the signal received by the first amplifier. With an amplifier
A second amplifier arranged along a second path between the input of the receiving system and the output of the receiving system, the second amplifier configured to amplify the signal received by the second amplifier. With an amplifier
A unipolar / single throw (SPST) switch arranged between the first path and the second path and configured to connect the first path and the second path.
Including a controller configured to receive band selection signals
The SPST switch is arranged between a node arranged between the first amplifier and the input of the receiving system in the first path and between the second amplifier and the input of the receiving system in the second path. Configured to join nodes
The controller responds to a band selection signal indicating a singular frequency band to enable either the first amplifier or the second amplifier corresponding to the singular frequency band, and opens the SPST switch. Configured to
In response to a band selection signal indicating a plurality of frequency bands, the controller enables one of the first amplifier or the second amplifier corresponding to the plurality of frequency bands, and closes the SPST switch. A receiving system configured to be . Further including a first phase shift component arranged along the first path.
The reception of claim 1, wherein the first phase shift component is configured to phase shift a signal passing through the first phase shift component in order to increase the impedance for the frequency band corresponding to the second path. system. The receiving system according to claim 2 , wherein the first phase shift component is arranged between the SPST switch and the input of the receiving system. The first phase shift component includes a tunable phase shift component.
The receiving system according to claim 2 , wherein the tunable phase shift component is configured to phase shift a signal passing through the tunable phase shift component by an amount controlled by the phase shift tuning signal received from the controller. The receiving system according to claim 4 , wherein the controller is configured to generate the phase shift tuning signal based on the band selection signal. The receiving system of claim 1, further comprising a first impedance matching component arranged along the first path and configured to reduce the noise figure of the first path. The receiving system according to claim 6 , wherein the first impedance matching component is arranged between the SPST switch and the first amplifier. The receiving system of claim 6 , wherein the first impedance matching component comprises a tunable impedance matching component configured to present impedance controlled by an impedance tuning signal received from the controller. The receiving system according to claim 8 , wherein the controller is configured to generate the impedance tuning signal based on the band selection signal. The input signal received in the receiving system is divided into a first signal in the first frequency band propagating along the first path and a second signal in the second frequency band propagating along the second path. The receiving system of claim 1, further comprising a multiplexer configured to be. The receiving system of claim 1, wherein at least one of the first amplifier and the second amplifier includes a double-stage amplifier. The receiving system of claim 1, wherein the controller is further configured to disable the first amplifier or the other of the second amplifiers. Radio frequency (RF) module
A packaging board configured to accept multiple components,
Including the receiving system mounted on the packaging board
The receiving system is
A first amplifier arranged along a first path between the input of the RF module and the output of the RF module, the first amplifier configured to amplify the signal received by the first amplifier. ,
A second amplifier arranged along a second path between the input of the RF module and the output of the RF module.
A unipolar / single throw (SPST) switch arranged between the first path and the second path and configured to connect the first path and the second path.
Including a controller configured to receive band selection signals
The SPST switch is arranged between a node arranged between the first amplifier and the input of the RF module in the first path and between the second amplifier and the input of the RF module in the second path. Configured to join nodes
The controller responds to a band selection signal indicating a singular frequency band to enable either the first amplifier or the second amplifier corresponding to the singular frequency band, and opens the SPST switch. Configured to
In response to a band selection signal indicating a plurality of frequency bands, the controller enables one of the first amplifier or the second amplifier corresponding to the plurality of frequency bands, and closes the SPST switch. RF module configured to be . 13. The RF module of claim 13 , wherein the RF module is a diversity receiver front-end module (FEM). The receiving system further includes a first phase shift component arranged along the first path.
The RF of claim 13 , wherein the first phase shift component is configured to phase shift a signal passing through the first phase shift component in order to increase the impedance for the frequency band corresponding to the second path. module. It ’s a wireless device,
A first antenna configured to receive a first radio frequency (RF) signal,
A first front-end module (FEM) that communicates with the first antenna,
Including transmitter / receiver
The first FEM includes a packaging substrate configured to accept a plurality of components.
The first FEM further includes a receiving system mounted on the packaging board.
The receiving system is
A first amplifier arranged along a first path between the input of the first FEM and the output of the first FEM, the first amplifier configured to amplify the signal received by the first amplifier. ,
A second amplifier arranged along a second path between the input of the first FEM and the output of the first FEM, the second amplifier configured to amplify the signal received by the second amplifier. ,
A unipolar / single throw (SPTP) switch arranged between the first path and the second path and configured to connect the first path and the second path.
Including a controller configured to receive band selection signals
The SPST switch is arranged between a node arranged between the first amplifier and the input of the first FEM in the first path and between the second amplifier and the input of the first FEM in the second path. Configured to join nodes
The controller responds to a band selection signal indicating a singular frequency band to enable either the first amplifier or the second amplifier corresponding to the singular frequency band, and opens the SPST switch. Configured to
In response to a band selection signal indicating a plurality of frequency bands, the controller enables one of the first amplifier or the second amplifier corresponding to the plurality of frequency bands, and closes the SPST switch. Configured to
The transmitter / receiver is a wireless device configured to receive a processed version of the first RF signal from the output of the first FEM via a cable and generate data bits based on the processed version of the first RF signal. .. A second antenna configured to receive a second radio frequency (RF) signal,
Further includes a second FEM that communicates with the first antenna.
The wireless device of claim 16 , wherein the transmitter / receiver is configured to receive a processed version of the second RF signal and generate the data bits based on the processed version of the second RF signal. The receiving system further includes a first phase shift component arranged along the first path.
The radio according to claim 16 , wherein the first phase shift component is configured to phase shift a signal passing through the first phase shift component in order to increase the impedance for the frequency band corresponding to the second path. device. Further including a second phase shift component arranged along the second path.
The reception of claim 2 , wherein the second phase shift component is configured to phase shift the signal passing through the second phase shift component in order to increase the impedance for the frequency band corresponding to the first path. system. It ’s a receiving system,
A plurality of amplifiers, each of which is one of the plurality of amplifiers, is arranged along one of the corresponding paths of the plurality of paths between the input of the receiving system and the output of the receiving system. A plurality of amplifiers configured to amplify the signal received by the one amplifier, and
A switching network comprising one or more single pole / single throw (SPST) switches, wherein each of the SPST switches has one SPST switch corresponding to each pair of the plurality of paths. A switching network configured to connect pairs,
Including a controller configured to receive band selection signals
The switching network is located between the plurality of amplifiers and the input of the receiving system.
The controller enables one of the plurality of amplifiers corresponding to the single frequency band in response to receiving a band selection signal indicating a single frequency band, and said. It is configured to control the switching network to open all of one or more SPST switches.
The controller is configured to enable one of the plurality of amplifiers corresponding to one of the multiple frequency bands in response to receiving a band selection signal indicating the multiple frequency band. A receiving system configured to control the switching network so as to combine multiple paths corresponding to the multiple frequency band . Including multiple phase shift components
One phase shift component of each of the plurality of phase shift components is arranged along one corresponding path among the plurality of paths, and the signal passing through the one phase shift component is phase-shifted. 20. The receiving system of claim 20 , configured to increase the impedance for the frequency band corresponding to the other one of the plurality of paths.

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