CN119093956A

CN119093956A - Processing method, radio frequency receiving device and circuit, module, terminal, medium

Info

Publication number: CN119093956A
Application number: CN202310661389.3A
Authority: CN
Inventors: 秦宇
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2023-06-05
Filing date: 2023-06-05
Publication date: 2024-12-06

Abstract

The present disclosure provides a signal processing method, including: according to the target state of a target card, activating corresponding radio frequency resources among a plurality of radio frequency resources; configuring the activated radio frequency resources to a working state matching a frequency band corresponding to the target state; and sending the signal processed by the configured radio frequency resources to a demodulation module. The present disclosure also provides a radio frequency receiving device, a radio frequency circuit, a receiving resource control module, a terminal, and a computer-readable medium.

Description

Processing method, radio frequency receiving device, circuit, module, terminal and medium

Technical Field

The present disclosure relates to the field of communication devices, and in particular, to a signal processing method, a radio frequency receiving apparatus, a radio frequency circuit, a reception resource control module, a terminal, and a computer readable medium.

Background

The dual-card terminal comprises modes of dual-card dual-standby, dual-card dual-pass and the like, and can respectively realize the function that two subscriber identity module (SIM, subscriber Identity Module) cards can stand by at the same time or establish communication at the same time. If the two SIM cards work on different frequency bands with larger frequency difference, different frequency bands can use different radio frequency resources, and no conflict exists between the two SIM cards. If the frequency bands where the two SIM cards operate have the same frequency band or adjacent frequency bands, the allocation of radio frequency resources will be affected. For example, in the case of co-frequency dual-card dual-standby, when the SIM card 1 is in a connected state, the SIM card 2 needs to receive network paging information, and then the SIM card 2 temporarily occupies radio frequency hardware resources of the SIM card 1 in the frequency band, so that the receiving capability of the SIM card 1 is affected.

The same problem exists in the dual card dual pass mode. In comparison, the influence of occupied receiving resources on the communication performance is obvious, so that the receiving performance of the dual-card terminal on the same frequency or nearby frequencies in dual-standby and dual-pass modes is improved, and the dual-card terminal is a very meaningful work.

Disclosure of Invention

Embodiments of the present disclosure provide a signal processing method, a radio frequency receiving device, a radio frequency circuit, a reception resource control module, a terminal, and a computer readable medium.

As a first aspect of the present disclosure, there is provided a signal processing method including:

activating corresponding radio frequency resources in the plurality of radio frequency resources according to the target state of the target card;

configuring the activated radio frequency resource to a working state matched with a frequency band corresponding to the target state;

and sending the signal processed by the configured radio frequency resource to a demodulation module.

As a second aspect of the present disclosure, there is provided a radio frequency receiving apparatus, including a plurality of radio frequency resources, where the radio frequency resources can be activated and configured to an operating state matched with a frequency band corresponding to a target state of a target card, and each of the radio frequency resources activated and configured to a frequency band corresponding to the target state of the target card can perform down-conversion processing on a received signal of a corresponding frequency band.

As a third aspect of the present disclosure, a radio frequency circuit is provided, where the radio frequency circuit includes a radio frequency receiving device, a plurality of antennas, and a plurality of radio frequency front end modules, where the plurality of radio frequency front end modules are in one-to-one correspondence with the plurality of antennas, the radio frequency receiving device is the radio frequency receiving device, and the radio frequency front end module is configured to divide a signal received by the antennas, and output the signal to the radio frequency receiving device.

As four aspects of the present disclosure, there is provided a reception resource control module, wherein the reception resource control module includes:

One or more processors;

And a memory having one or more programs stored thereon, which when executed by the one or more processors, cause the one or more processors to implement the signal processing method.

As a fifth aspect of the present disclosure, a terminal is provided, where the terminal includes a radio frequency circuit and a receiving resource control module, where the radio frequency circuit is the radio frequency circuit, and the receiving resource control module is the receiving resource control module.

As a sixth aspect of the present disclosure, there is provided a computer-readable medium having stored thereon a computer program which, when executed by a processor, implements the signal processing method.

The signal processing method provided by the present disclosure is performed by a receiving resource control module. The radio frequency resource belongs to a radio frequency receiving device, and the radio frequency receiving device belongs to a radio frequency circuit of the terminal. The radio frequency resource can perform down-conversion processing on the corresponding signals to obtain signals which can be demodulated by the demodulation module.

The terminal is one that includes a plurality of SIM cards, the "target card" described above being one of the plurality of cards that receives signals. In the radio frequency receiving device provided by the disclosure, different radio frequency resources are configured for signals in different frequency bands.

When different SIM cards are in different stages, the signal frequency bands which can be processed are also different. In the technical scheme provided by the disclosure, the target card is the currently working card, and after the target state of the target card is determined, the frequency band of the signal to be processed can be determined, and then the corresponding radio frequency resource is determined according to the frequency band.

In the signal processing method, radio frequency resources are allocated according to the frequency band of the signal to be processed, rather than fixedly dividing the radio frequency resources according to the type of the card (generally, the type of the card comprises a main card and a sub card), so that any one SIM card can obtain sufficient radio frequency resources in a corresponding working stage, and the transmission capacity of a single SIM card is improved.

Drawings

FIG. 1 is a flow chart of one embodiment of a signal processing method provided by the present disclosure;

fig. 2 is a schematic diagram of a radio frequency receiving device provided by the present disclosure;

FIG. 3 is a schematic diagram of a specification module in a terminal provided by the present disclosure;

fig. 4 is a schematic diagram of a receive resource control module provided by the present disclosure;

fig. 5 is a schematic diagram of a computer-readable medium provided by the present disclosure.

Detailed Description

In order to better understand the technical solutions of the present disclosure, the signal processing method, the radio frequency receiving device, the radio frequency circuit, the receiving resource control module, the terminal and the computer readable medium provided in the present disclosure are described in detail below with reference to the accompanying drawings.

Example embodiments will be described more fully hereinafter with reference to the accompanying drawings, but may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

Embodiments of the disclosure and features of embodiments may be combined with each other without conflict.

As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure, and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

As a first aspect of the present disclosure, there is provided a signal processing method, as shown in fig. 1, including:

In step S110, according to the target state of the target card, activating a corresponding radio frequency resource in the plurality of radio frequency resources;

in step S120, the activated radio frequency resource is configured to a working state matched with a frequency band corresponding to the target state;

In step S130, the signal processed by the configured radio frequency resource is sent to the demodulation module.

The terminal is a device comprising a plurality of subscriber identity cards, the "target card" described above being one of the plurality of cards. In the radio frequency receiving device provided by the disclosure, different radio frequency resources are configured for signals in different frequency bands.

It should be noted that when different SIM cards are in different phases, the signal frequency bands that can be processed are also different. In the technical scheme provided by the disclosure, the target card is the currently working card, and after the target state of the target card is determined, the frequency band of the signal to be processed can be determined, and then the corresponding radio frequency resource is determined according to the frequency band.

It should be noted that "radio frequency resources" in the present disclosure refers to radio frequency resources used by radio frequency received signals.

In the present disclosure, the number of "SIM cards" in the terminal is not particularly limited. As an alternative embodiment, the terminal may be a dual card terminal comprising two SIMs. For convenience of description and distinction, two SIMs are referred to as a main card and a sub card, respectively.

As an alternative embodiment, in the case that the target card is a master card, the target state is to enter a dual connectivity state (ENDC, E-UTRA Dual Connectivity):

The activating corresponding radio frequency resources comprises activating radio frequency resources corresponding to a first frequency band;

The configuration of the activated radio frequency resource to the working state matched with the frequency band corresponding to the target state comprises the step of configuring the activated radio frequency resource to the working state matched with the first frequency band.

Here, the first frequency band refers to a long term evolution (LTE, long Term Evolution) frequency band, which may also be referred to as frequency band 1. When the main card enters into the ENDC process, the resource allocation of the LTE frequency band is needed. After activating the radio frequency resource corresponding to the first frequency band and configuring the activated radio frequency resource, the signal of the LTE frequency band received by the antenna can be processed, and the signal after the radio frequency resource processing is sent to the demodulation module.

After the main card resides in the first frequency band (i.e. the target state is that the main card resides in the first frequency band), the main card enters the resource allocation of the second frequency band. Correspondingly, the activating the corresponding radio frequency resource further comprises activating the radio frequency resource corresponding to the second frequency band. The activated radio frequency resource is configured to a working state matched with a frequency band corresponding to the target state, and the method comprises the step of configuring the activated radio frequency resource to a working state matched with a second frequency band. In the present disclosure, the first frequency band and the second frequency band may not be intermediate frequency or high frequency at the same time.

In the case that the first frequency band is the LTE frequency band, the second frequency band may be a New air interface (New Radio) frequency band (NR frequency band may also be referred to as frequency band 0). That is, band 0 is a high frequency and band 1 is an intermediate frequency.

After activating the radio frequency resource corresponding to the second frequency band and configuring the activated radio frequency resource, the signal of the NR frequency band received by the antenna can be processed, and the signal after the radio frequency resource processing is sent to the demodulation module.

Similarly, in the case that the sub-card is to enter a standby state or a connection state, the corresponding radio frequency resource needs to be activated and configured.

Specifically, in the case that the target card is a sub card, and the target state is standby or dual-connection state:

the activating corresponding radio frequency resources comprises activating radio frequency resources corresponding to a third frequency band, wherein the radio frequency resources are corresponding to the third frequency band;

The activated radio frequency resource is configured to a working state matched with a frequency band corresponding to the target state, and the method comprises the step of configuring the activated radio frequency resource to a working state matched with a third frequency band.

As described above, the second frequency band is high frequency, and then the third frequency band is intermediate frequency. When the sub-card needs to enter standby or a connection state, after activating and configuring the radio frequency resources corresponding to the third frequency band, the signal of the third frequency band received by the antenna can be processed, and the signal after the radio frequency resource processing is sent to the demodulation module.

As indicated above, the second frequency band may be an NR frequency band, and correspondingly, the third frequency band may be a frequency band 2.

In the present disclosure, the specific type of radio frequency resource is not particularly limited, as long as the signal received by the antenna can be subjected to down-conversion processing to obtain a signal suitable for demodulation. Optionally, the plurality of radio frequency resources each include M Voltage Controlled Oscillators (VCOs), N downconverters, N internal low noise amplifiers (iLNA, inner low noise amplifier), where M and N are positive integers.

Each voltage controlled oscillator corresponds to a plurality of downconverters that are selectively coupled to one of the N internal low noise amplifiers. That is, the correspondence between the voltage controlled oscillator and the down converter is fixed, but the correspondence between the down converter and the internal low noise amplifier may not be fixed.

The output end of the voltage-controlled oscillator is connected with the local oscillation ends of the corresponding down-converters, and the voltage-controlled oscillator outputs local oscillation signals to the corresponding down-converters under the condition that the voltage-controlled oscillator receives the activation signals.

The internal low noise amplifier is configured to transmit a received signal to a corresponding down converter such that the down converter processes the signal.

After the radio frequency resources corresponding to the frequency band in the target state are selected, the selected radio frequency resources are electrically connected in a preset mode.

Accordingly, step S120 may include:

Adjusting the working frequency of the corresponding voltage-controlled oscillator to the working frequency corresponding to the frequency band corresponding to the target state;

And adjusting the working states of the corresponding down converter and the corresponding internal low-noise amplifier to be matched with the frequency band corresponding to the target state.

As described above, different radio frequency resource combinations may correspond to different frequency bands, and as an alternative embodiment, the plurality of radio frequency resources may be combined into a radio frequency resource group corresponding to any one of the following frequency bands:

the radio frequency resource group corresponding to the first frequency band, the radio frequency resource group corresponding to the second frequency band and the radio frequency resource group corresponding to the third frequency band, wherein the frequency of the first frequency band and the frequency of the third frequency band are lower than the frequency of the second frequency band. As an alternative implementation mode, the first frequency band and the third frequency band are both intermediate frequency and the second frequency band is high frequency.

As a second aspect of the present disclosure, there is provided a radio frequency receiving apparatus matched with the signal processing method provided in the first aspect of the present disclosure. Specifically, the radio frequency receiving device comprises a plurality of radio frequency resources, the radio frequency resources can be activated and configured to a working state matched with a frequency band corresponding to a target state of a target card, and each radio frequency resource activated and configured to the frequency band corresponding to the target state of the target card can perform down-conversion processing on received signals of the corresponding frequency band.

As described above, when different SIM cards are in different phases, the signal frequency bands that can be processed are also different. In the technical scheme provided by the disclosure, the target card is the currently working card, and after the target state of the target card is determined, the frequency band of the signal to be processed can be determined, and then the corresponding radio frequency resource is determined according to the frequency band.

In the radio frequency receiving device, radio frequency resources are allocated according to the frequency band of the signal to be processed, rather than the fixed division of the radio frequency resources according to the type of the card (generally, the type of the card comprises a main card and a sub card), so that any one SIM card can obtain sufficient radio frequency resources in the corresponding working stage, and the transmission capacity of the single SIM card is improved.

As an optional implementation manner, the frequency band corresponding to the target state is selected from one of a first frequency band, a second frequency band and a third frequency band. The same frequency of the first frequency band and the third frequency band or the adjacent frequency band, or the same frequency of the second frequency band and the third frequency band or the adjacent frequency band. Optionally, the first frequency band and the third frequency band are both intermediate frequency, and the second frequency band is high frequency.

Further alternatively, the first frequency band may be an LTE frequency band (may also be referred to as frequency band 1), the second frequency band may be an NR frequency band (may also be referred to as frequency band 0), and the third frequency band may be frequency band 2.

As an alternative embodiment, the plurality of radio frequency resources each include M voltage controlled oscillators, N downconverters, and N internal low noise amplifiers. Wherein M and N are positive integers.

Each of the voltage controlled oscillators corresponds to a plurality of the downconverters that are selectively coupled to one of the N internal low noise amplifiers.

As described above, the output end of the voltage controlled oscillator is connected to local oscillation ends of the corresponding plurality of downconverters, and when the voltage controlled oscillator receives an activation signal, the radio frequency receiving device outputs local oscillation signals to the corresponding downconverters, and further includes N/2 primary splitters and N secondary splitters, each primary splitter corresponds to two internal low noise amplifiers, two output ends of the primary splitter are respectively connected to input ends of the corresponding two internal low noise amplifiers, and an input end of the primary splitter is used to be connected to an output end of the corresponding radio frequency front end module. By providing a primary splitter, the number of receiving ports on the radio frequency receiving device can be reduced.

In order to expand the frequency range of the signal that can be processed, optionally, the radio frequency receiving device further includes N selection switches, where the N selection switches are in one-to-one correspondence with the N downconverters.

Any one down converter corresponds to two internal low-noise amplifiers, the public end of the selection switch is connected with the down converter, and the switchable end of the selection switch can be switched between the two internal low-noise amplifiers corresponding to the down converter.

N internal low-noise amplifiers are in one-to-one correspondence with N secondary splitters, the input ends of the secondary splitters are connected with the output ends of the corresponding internal low-noise amplifiers, and the two output ends of the secondary splitters are respectively connected with two terminals of the switchable ends of the selection switches connected with the corresponding down converters.

The secondary splitter may split the output signal of the internal low noise amplifier into different downconverters.

The radio frequency receiving device provided in the present disclosure is exemplarily described below in connection with the specific embodiment provided in fig. 2.

The radio frequency receiving apparatus shown in fig. 2 includes:

a voltage controlled oscillator VCO1, a down converter 1-1, a down converter 3-1, a down converter 5-1, and a down converter 7-1 corresponding to the voltage controlled oscillator VCO 1;

a voltage controlled oscillator VCO2, a down converter 1-2, a down converter 3-2, a down converter 5-2, and a down converter 7-2 corresponding to the voltage controlled oscillator VCO 2;

A voltage controlled oscillator VCO3, a down converter 2-1, a down converter 4-1, a down converter 6-1, and a down converter 8-1 corresponding to the voltage controlled oscillator VCO 3;

a voltage controlled oscillator VCO4, a down converter 2-2, a down converter 4-2, a down converter 6-2, and a down converter 8-2 corresponding to the voltage controlled oscillator VCO 4;

iLNA 1-1、iLNA 1-2、iLNA 2-1、iLNA 2-2、iLNA 3-2、iLNA3-2、iLNA 4-1、iLNA 4-2、iLNA 5-1、iLNA 5-2、iLNA 6-1、iLNA 6-2、iLNA 7-1、iLNA 7-2、iLNA 8-1、iLNA 8-2.

Wherein the down-converters 1-1 and iLNA-1 and iLNA-1 correspond to down-converters 1-2 and iLNA-1-2 and iLNA-2 correspond to down-converters 2-1 and iLNA-1 correspond to down-converters 2-2 and iLNA-2, down-converters 3-1 and iLNA4-1 correspond to down-converters 3-2 and iLNA-2 correspond to iLNA4-1 and iLNA 3-1 correspond to iLNA3-2 and iLNA3-2 correspond to down-converters 4-2 and iLNA3-2 correspond to iLNA 4-2 and iLNA3-2 correspond to down-converters 4-2 and iLNA-3-2, the down-converters 5-1 correspond to iLNA5-1 and iLNA6-1, the down-converters 5-2 correspond to iLNA5-2 and iLNA 6-2, the down-converters 6-1 correspond to iLNA6-1 and iLNA5-1, the down-converters 6-2 correspond to iLNA 6-2 and iLNA5-2, the down-converters 7-1 correspond to iLNA7-1 and iLNA8-1, the down-converters 7-2 correspond to iLNA7-2 and iLNA8-2, the down-converters 8-1 correspond to iLNA8-1 and iLNA7-1, and the down-converters 8-2 correspond to iLNA8-2 and iLNA 7-2.

In the embodiment shown in fig. 2, the radio frequency receiving apparatus further includes a primary splitter 1, a primary splitter 2, a primary splitter 3, a primary splitter 5, a primary splitter 6, a primary splitter 7, a primary splitter 8, a secondary splitter 1-1, a secondary splitter 1-2, a secondary splitter 2-1, a secondary splitter 2-2, a secondary splitter 3-1, a secondary splitter 3-2, a secondary splitter 4-1, a secondary splitter 4-2, a secondary splitter 5-1, a secondary splitter 5-2, a secondary splitter 6-1, a secondary splitter 6-2, a secondary splitter 7-1, a secondary splitter 7-2, a secondary splitter 8-1, a secondary splitter 8-2, wherein, the input end of the first-stage branching unit 1 is connected with an input port RX1, the two output ends of the first-stage branching unit 1 are respectively connected with iLNA1-1 and iLNA 1-2, the input end of the first-stage branching unit 2 is connected with the input port RX2, the two output ends of the first-stage branching unit 2 are respectively connected with iLNA-1 and iLNA-2, the input end of the first-stage branching unit 3 is connected with the input port RX3, the two output ends of the first-stage branching unit 3 are respectively connected with iLNA-1 and iLNA-3-2, the input end of the first-stage branching unit 4 is connected with an input port RX4, iLNA-1 and iLNA-2, the input end of the first-stage branching unit 5 is connected with an input port RX5, the two output ends of the first-stage branching unit 5 are respectively connected with iLNA-1 and iLNA-2, the input end of the primary branching unit 6 is connected with the input port RX6, the two output ends of the primary branching unit 6 are respectively connected with iLNA-1 and iLNA-2, the input end of the primary branching unit 7 is connected with the input port RX7, the two output ends of the primary branching unit 7 are respectively connected with iLNA-1 and iLNA-2, the input end of the primary branching unit 8 is connected with the input port RX8, and the two output ends of the primary branching unit 8 are respectively connected with iLNA-1 and iLNA-8-2.

The input end of the secondary branching unit 1-1 is connected with the output end of the iLNA1-1, and the two output ends of the secondary branching unit 1-1 are respectively connected with a terminal 1 of a switchable end of a selection switch corresponding to the down converter 1-1 and a terminal 2 of a switchable end of a selection switch corresponding to the down converter 2-1; the input end of the secondary shunt 1-2 is connected with the output end of iLNA1-2, the two output ends of the secondary shunt 1-2 are respectively connected with a terminal 1 of a switchable end of a selection switch corresponding to the down converter 1-2 and a terminal 2 of a switchable end of a selection switch corresponding to the down converter 2-2, the input end of the secondary shunt 2-1 is connected with the output end of iLNA-2-1, the two output ends of the secondary shunt 2-1 are respectively connected with a terminal 2 of a switchable end of a selection switch corresponding to the down converter 1-1 and a terminal 1 of a switchable end of a selection switch corresponding to the down converter 2-1, the input end of the secondary shunt 2-2 is connected with the output end of iLNA-2, the two output ends of the secondary shunt 2-2 are respectively connected with a terminal 2 of a switchable end of a selection switch corresponding to the down converter 1-2 and a terminal 1 of a switchable end of a selection switch corresponding to the down converter 2-2, the input end of the secondary shunt 3-1 is connected with the output end of 341-34, two output ends of the secondary branching device 3-1 are respectively connected with a terminal 1 of a switchable end of a selection switch corresponding to the down converter 3-1 and a terminal 2 of a switchable end of a selection switch corresponding to the down converter 4-1; the input end of the secondary shunt 3-2 is connected with the output end of the iLNA3-2, and the two output ends of the secondary shunt 3-2 are respectively connected with the terminal 1 of the switchable end of the selection switch corresponding to the down converter 3-2 and the terminal 2 of the switchable end of the selection switch corresponding to the down converter 4-2; the input end of the secondary shunt 4-1 is connected with the output end of iLNA4-1, the two output ends of the secondary shunt 4-1 are respectively connected with a terminal 2 of the switchable end of the selection switch corresponding to the down converter 3-1 and a terminal 1 of the switchable end of the selection switch corresponding to the down converter 4-1, the input end of the secondary shunt 4-2 is connected with the output end of iLNA-2, the two output ends of the secondary shunt 4-2 are respectively connected with a terminal 2 of the switchable end of the selection switch corresponding to the down converter 3-2 and a terminal 1 of the switchable end of the selection switch corresponding to the down converter 4-2, the input end of the secondary shunt 5-1 is connected with the output end of iLNA5-1, the two output ends of the secondary shunt 5-1 are respectively connected with a terminal 1 of the switchable end of the selection switch corresponding to the down converter 5-1 and a terminal 2 of the switchable end of the selection switch corresponding to the down converter 6-1, the input end of the secondary shunt 5-2 is connected with the output end 34-2 of the selection switch corresponding to the down converter 5-1, two output ends of the secondary branching device 5-2 are respectively connected with a terminal 1 of a switchable end of a selection switch corresponding to the down converter 5-2 and a terminal 2 of a switchable end of a selection switch corresponding to the down converter 6-2; the input end of the secondary branching unit 6-1 is connected with the output end of the iLNA6-1, and the two output ends of the secondary branching unit 6-1 are respectively connected with the terminal 2 of the switchable end of the selection switch corresponding to the down converter 5-1 and the terminal 1 of the switchable end of the selection switch corresponding to the down converter 6-1; the input end of the secondary shunt 6-2 is connected with the output end of iLNA6-2, the two output ends of the secondary shunt 6-2 are respectively connected with the terminal 2 of the switchable end of the selection switch corresponding to the down converter 5-2 and the terminal 1 of the switchable end of the selection switch corresponding to the down converter 6-2, the input end of the secondary shunt 7-1 is connected with the output end of iLNA7-1, the two output ends of the secondary shunt 7-1 are respectively connected with the terminal 1 of the switchable end of the selection switch corresponding to the down converter 7-1 and the terminal 2 of the switchable end of the selection switch corresponding to the down converter 8-1, the input end of the secondary shunt 7-2 is connected with the output end of iLNA7-2, the two output ends of the secondary shunt 7-2 are respectively connected with the terminal 1 of the switchable end of the selection switch corresponding to the down converter 7-2 and the terminal 2 of the switchable end of the selection switch corresponding to the down converter 8-2, the input end of the secondary shunt 8-1 is connected with the output end 34-1 of the selection switch corresponding to the down converter 8-1, two output ends of the two-stage splitter 8-1 are respectively connected with a terminal 2 of a switchable end of a selection switch corresponding to the down converter 7-1 and a terminal 1 of a switchable end of a selection switch corresponding to the down converter 8-1, an input end of the two-stage splitter 8-2 is connected with an output end iLNA of the two-stage splitter 8-2, and two output ends of the two-stage splitter 8-2 are respectively connected with a terminal 2 of a switchable end of a selection switch corresponding to the down converter 7-2 and a terminal 1 of a switchable end of a selection switch corresponding to the down converter 8-2. The "terminal 1" and "terminal 2" of the switchable end of the selector switch described herein represent only different ports and have no other special meaning.

As a third aspect of the present disclosure, a radio frequency circuit is provided, where the radio frequency circuit includes a radio frequency receiving device, a plurality of antennas, and a plurality of radio frequency front end modules, where a plurality of radio frequency front end modules are in one-to-one correspondence with a plurality of antennas, where the radio frequency receiving device is provided in the second aspect of the present disclosure, and the radio frequency front end module is configured to divide and pre-amplify a signal received by the antennas, and output the signal to the radio frequency receiving device.

It should be understood that the rf front-end module further has a plurality of interfaces of transmitting paths, which are configured to receive the rf transmit signals provided by the rf transmitting device, and transmit the rf transmit signals to the corresponding antennas after being combined in the rf front-end module.

In the present disclosure, after the antenna receives a signal and is divided and pre-amplified by the radio frequency front end module, a signal to be processed having a target frequency may be obtained. And providing the signal to be processed with the target frequency to corresponding radio frequency resources in the radio frequency receiving device for down-conversion processing, and transmitting the signal subjected to the down-conversion processing to a demodulation module for further demodulation.

In order to simplify the structure of the radio frequency circuit, signals in different frequency bands can share the radio frequency front end module. Thus, the radio frequency front end module should have the ability to identify signals of different frequency bands. As an alternative embodiment, a plurality of filters of different frequency bands may be used to achieve the identification of signals of different frequency bands.

In the present disclosure, the specific structure of the radio frequency front end module is not particularly limited. The radio frequency front end modules of each path use a unified circuit architecture to realize the complete equivalence of each receiving path, and the transmitting paths can be equivalently switched among the radio frequency front end modules.

As an alternative embodiment, the front-end module may include an antenna port, a filtering sub-circuit on the radio frequency reception path, an amplifying sub-circuit on the radio frequency reception path, and a transmit-receive shunt/combiner sub-circuit.

The filtering sub-circuit is used for filtering the signals received by the antenna, and the amplifying sub-circuit is used for pre-amplifying the filtered signals.

The receiving and transmitting branch/combining sub-circuit is connected with the corresponding antenna through the antenna port, and the receiving and transmitting branch/combining sub-circuit is connected with the filtering module.

Further, the transmit-receive branching/combining circuit comprises a first two-way device, the filtering module comprises a first filtering module and a second filtering module, the amplifying circuit comprises a first low noise amplifier and a second low noise amplifier,

The first combining end of the first two-way device is formed as the antenna port, that is, the first combining end of the first two-way device is connected with the corresponding antenna.

The output end of the first filtering module is connected with the input end of the first low noise amplifier, and the input end of the first filtering module is connected with the first shunt end of the first two-way device.

The output end of the second filtering module is connected with the input end of the second low noise amplifier, and the input end of the second filtering module is connected with the second shunt end of the first two-way device.

The output end of the first low noise amplifier and the output end of the second low noise amplifier are connected with the radio frequency receiving device.

In the present disclosure, the first filtering module corresponds to a frequency band of a time division duplex (TDD, time Division Duplexing) mode, and the second filtering module corresponds to a frequency band of a frequency division duplex (FDD, frequency Division Duplexing) mode.

As an alternative embodiment, the first filtering module is used in the frequency band of the TDD mode, and may include a frequency band 0 filter, a transmit-receive switch, and a first external low noise amplifier (LNA, low Noise Amplifier). The first terminal of the frequency band 0 filter is connected with the first output end of the first two-way device, the second terminal of the frequency band 0 filter is connected with the public end of the receiving and transmitting switch, and the receiving end of the receiving and transmitting switch is connected with the input end of the first external low-noise amplifier.

As an alternative embodiment, the second filtering module is applied to a frequency band of the frequency division duplex mode. The second filtering module may include a multiplexer, a second diplexer. The common end of the multiplexer is connected with the second output end of the first two-way device, the two receiving ends of the multiplexer are connected with the two input ends of the second two-way device, and the output end of the second two-way device is connected with the input end of the second external low-noise amplifier.

The radio frequency circuit also has the function of transmitting signals, and in the present disclosure, the radio frequency circuit includes a radio frequency transmitting device. The two transmitting ends of the multiplexer are connected with the radio frequency transmitting device. In the embodiment shown in fig. 3, the multiplexer is a band 1, band 2 quad. Hereinafter, the radio frequency transmitting apparatus will be described briefly.

As shown in fig. 3, the radio frequency transmitting device is connected to the front end module, so that the front end module transmits the radio frequency transmitting signal generated by the radio frequency transmitting device to the antenna.

In the present disclosure, the specific structure of the radio frequency emitting device is not particularly limited. As shown in fig. 3, the radio frequency transmitting apparatus includes a radio frequency signal transmitting module (i.e., TX module in the drawing), a plurality of radio frequency power amplifiers, and a plurality of single-pole multiple-path switches, where the radio frequency signal transmitting module includes a plurality of signal transmitting ports, a plurality of radio frequency power amplifiers are in one-to-one correspondence with the plurality of signal transmitting ports, and a plurality of radio frequency power amplifiers are in one-to-one correspondence with the plurality of single-pole multiple-path switches.

The single-pole multi-path switch is electrically connected between the corresponding radio frequency power amplifier and the front-end modules so as to realize the switching of the radio frequency transmission signals among the antennas.

As an alternative embodiment, the terminal is a dual card terminal. Accordingly, in the embodiment shown in fig. 3, the radio frequency signal transmission module has two signal transmission ports, a first signal transmission port TX0 and a second signal transmission port TX1, respectively. Likewise, in the embodiment including two signal transmission ports, the radio frequency transmitting apparatus includes two single-pole multiple switches, and in the embodiment shown in fig. 3, the two single-pole multiple switches are a first switch corresponding to the first signal transmission port TX0 and a second switch corresponding to the second signal transmission port TX1, respectively. Accordingly, the radio frequency transmitting device comprises two radio frequency power amplifiers, namely a first power amplifier PA1 and a second power amplifier PA2 in fig. 3.

The number of output ends of the first switch is the same as the number of receiving and transmitting switches in the radio frequency front end module, and are in one-to-one correspondence. Each output end of the first switch is connected with the transmitting end of the receiving and transmitting switch of each radio frequency front end module respectively.

The number of the output ends of the second switch is the same as the number of the transmitting ends of all the multiplexers in the radio frequency front-end module. The multiplexer is connected to two terminals of the output terminal of the second switch associated with the second power amplifier PA2 for receiving the transmit signal of the second power amplifier PA 2.

The first signal transmission port TX0 is connected to the input of the first power amplifier PA1, and the second signal transmission port TX1 is connected to the input of the second power amplifier PA 2.

After the first signal transmitting port TX0 of the radio frequency transmitting module transmits a radio frequency signal, the radio frequency signal is amplified by the first power amplifier PA1, and an output end is selected by the first switch to be output to a transceiver switch in a first filtering module in the corresponding radio frequency front end module, and finally transmitted to a corresponding antenna.

After the second signal transmitting port TX1 of the radio frequency transmitting module transmits a radio frequency signal, the radio frequency signal is amplified by the second power amplifier PA2, and then output from the second switch to the multiplexer in the second filtering module in the corresponding radio frequency front end module, and finally transmitted to the corresponding antenna.

As an alternative embodiment, the number of downconverters in any one set of the radio frequency resources and the number of internal low noise amplifiers are integer multiples of the number of antennas. In the present disclosure, the number of antennas is not particularly limited, and in the embodiment shown in fig. 3, the radio frequency circuit includes four antennas.

As a fourth aspect of the present disclosure, there is provided a reception resource control module, wherein, as shown in fig. 4, the reception resource control module includes:

one or more processors 101;

A memory 102 having one or more programs stored thereon, which when executed by the one or more processors, cause the one or more processors 101 to implement the signal processing method provided by the first aspect of the present disclosure.

Optionally, the electronic device may further include one or more I/O interfaces 103 connected between the processor and the memory and configured to enable information interaction of the processor with the memory.

The processor 101 is a device with data processing capability, including but not limited to a Central Processing Unit (CPU), the memory 102 is a device with data storage capability, including but not limited to a random access memory (RAM, more specifically SDRAM, DDR, etc.), a Read Only Memory (ROM), an Electrically Erasable Programmable Read Only Memory (EEPROM), a FLASH memory (FLASH), and an I/O interface (read/write interface) 103 is connected between the processor 101 and the memory 102, so as to enable information interaction between the processor 101 and the memory 102, including but not limited to a data Bus (Bus), etc.

In some embodiments, processor 101, memory 102, and I/O interface 103 are connected to each other via bus 104, and thus to other components of the computing device.

As an alternative implementation manner, the receiving resource control module, the demodulation module and the modulation module are integrated on the same chip to form the baseband processing module.

As a fifth aspect of the present disclosure, there is provided a terminal, as shown in fig. 3, where the terminal includes a radio frequency circuit and a receiving resource control module, where the radio frequency circuit is a radio frequency circuit provided in the third aspect of the present disclosure, and the receiving resource control module is a receiving resource control module described in the fourth aspect.

As a sixth aspect of the present disclosure, as shown in fig. 5, there is provided a computer-readable medium having stored thereon a computer program which, when executed by a processor, implements the signal processing method provided by the first aspect of the present disclosure.

The signal processing method provided in the first aspect of the present disclosure is exemplarily described below with reference to fig. 3. The following ANT1, ANT2, ANT3, ANT4 are antennas. LNA is an acronym for low noise amplifier Low Noise Amplifier. LNA1, LNA2, LNA3, LNA4 are all low noise amplifiers.

Firstly, the resource allocation is carried out on the frequency band of the SIM card 1 (namely, the main card) according to the following steps:

In the process that the mobile phone SIM card 1 enters the ENDC, firstly, the resource allocation of the LTE frequency band (namely the frequency band 1) is carried out, and the method comprises the following steps:

Activating modules such as a voltage controlled oscillator VCO3, a down converter 2-1, a down converter 4-1, a down converter 6-1, a down converter 8-1, iLNA-1, iLNA-1, iLNA6-1, iLNA-1 and the like;

the frequency of the VCO3 is adjusted to the operating frequency of band 1, while the operating states of the downconverters 2-1, 4-1, 6-1, 8-1 and iLNA-2-1, iLNA4-1, iLNA-1, iLNA-1 are adjusted to band 1.

Under the above configuration, the signals of the frequency band 1 received by the antennas ANT1, ANT2, ANT3, ANT4 pass through the first two-way device, the frequency band 1 frequency band 2 four-way device, the second two-way device, the LNA2, LNA4, LNA6, LNA8 and other modules of the radio frequency front end path, enter the RX2 port, RX4 port, RX6 port and RX8 port of the radio frequency transceiver module, pass through the first-stage splitter 2, the first-stage splitter 4, the first-stage splitter 6, the first-stage splitter 8, iLNA 2-1, iLNA-1, iLNA-1, iLNA-1, the second-stage splitter 2-1, the second-stage splitter 4-1, the second-stage splitter 8-1, pass through the corresponding selection switches before the down-converters, and enter the down-converters 2-1, the down-converters 4-1, the down-converters 6-1, the down-converters 8-1, and finally enter the demodulation modules in the processing module.

After the LTE frequency band resides in the network, resource allocation of an NR frequency band (namely, frequency band 0) is carried out:

Activating modules such as a voltage controlled oscillator VCO1, a down converter 1-1, a down converter 3-1, a down converter 5-1, a down converter 7-1, iLNA-1, iLNA-3-1, iLNA 5-1, iLNA-1 and the like;

The frequency of the voltage controlled oscillator VCO1 is adjusted to the operating frequency of band 0, while the operating states of the down-converters 1-1, 3-1, 5-1, 7-1 and iLNA-1, iLNA3-1, iLNA5-1, iLNA-1 are adjusted to band 0.

Under the above configuration, the signals of the frequency band 0 received on the ANT1, ANT2, ANT3, ANT4 enter the ports RX1, RX3, RX5 and RX7 of the radio frequency transceiver module through the two-way device, the frequency band 0 filter, the transceiver switch, the LNA1, the LNA3, the LNA 5, the LNA7 and other modules of the radio frequency front-end module, then enter the down-converter 1-1, the down-converter 3-1, the down-converter 5-1 and the down-converter 7-1 through the first-stage splitter 1, the first-stage splitter 3, the first-stage splitter 5, the first-stage splitters 7, iLNA-1, iLNA-1, iLNA 5-1 and iLNA-1, the second-stage splitter 1-1, the second-stage splitter 3-1 and the second-stage splitter 7-1 in the radio frequency transceiver module, and finally enter the demodulation module in the processing module through the corresponding selection switch before the down-converter.

Similarly, before the SIM card 2 is to enter a standby or connected state, the receiving resource control module performs the following steps:

activating modules such as a voltage controlled oscillator VCO4, a down converter 2-2, a down converter 4-2, a down converter 6-2, a down converter 8-2, iLNA-2, iLNA-2, iLNA 6-2, iLNA-2 and the like;

The frequency of the VCO4 is adjusted to the operating frequency of band 2, while the operating states of the down-converters 2-2, 4-2, 6-2, 8-2, and iLNA-2, iLNA-4-2, iLNA6-2, iLNA-2 are adjusted to band 2.

Under the above configuration, the signals of the frequency band 2 received on the ANT1, ANT2, ANT3, ANT4 pass through the first two-way device, the frequency band 1 frequency band 2 four-way device, the second two-way device, the LNA2, the LNA4, the LNA6, the LNA8 and other modules of the radio frequency front end path, enter the RX2 port, the RX4 port, the RX6 port and the RX8 port of the radio frequency transceiver module, pass through the first-stage splitter 2, the first-stage splitter 4, the first-stage splitter 6, the first-stage splitter 8, iLNA 2-2, iLNA-2, iLNA-2, iLNA-2, the second-stage splitter 2-2, the second-stage splitter 4-2, the second-stage splitter 8-2, pass through the corresponding selection switches before the down-converters, and enter the down-converters 2-2, the down-converters 4-2, the down-converters 6-2, the down-converters 8-2, and finally enter the demodulation modules in the processing module.

From the above, the signals of the frequency band 1 and the frequency band 2, which are both intermediate frequency, received by the same antenna share the radio frequency receiving module resource of the front end and enter the same receiving port of the radio frequency receiving and transmitting module together. After entering the radio frequency transceiver module, the radio frequency transceiver module is divided into two paths to perform respective down-conversion, and then enters a baseband processing module to finish demodulation processing. Therefore, under the conditions of double-card double-standby or double-pass, the channel resources at the front end can be not exclusive, and the maximum performance can be supported.

On the other hand, the present disclosure does not define the attribute of the receiving ports on the radio transceiver module, and the operation modes and priorities of all the receiving ports and the internally associated iLNA and down converters are completely identical except for the number. For any frequency band, the four-channel transceiver circuit architecture is completely consistent, the receiving channels are not switched on hardware, the transmitting channels can be switched independently, and the receiving channels are not affected. Therefore, functions such as multi-antenna switching, SRS, etc., can be switched freely over 4 antennas in the case of dual cards, without limitation.

Those of ordinary skill in the art will appreciate that all or some of the steps, systems, functional modules/units in the apparatus, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components, for example, one physical component may have a plurality of functions, or one function or step may be cooperatively performed by several physical components. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.

Example embodiments have been disclosed herein, and although specific terms are employed, they are used and should be interpreted in a generic and descriptive sense only and not for purpose of limitation. In some instances, it will be apparent to one skilled in the art that features, characteristics, and/or elements described in connection with a particular embodiment may be used alone or in combination with other embodiments unless explicitly stated otherwise. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the disclosure as set forth in the appended claims.

Claims

1. A signal processing method, comprising:

2. The signal processing method according to claim 1, wherein in a case where the target card is a master card and the target state is an entry into a dual connection state:

3. The signal processing method according to claim 2, wherein, in the case where the target card is a master card and the target state is a network-resident in the first frequency band:

the activating corresponding radio frequency resources further comprises activating radio frequency resources corresponding to a second frequency band;

the activated radio frequency resource is configured to a working state matched with a frequency band corresponding to the target state, and the method comprises the step of configuring the activated radio frequency resource to a working state matched with a second frequency band.

4. The signal processing method according to claim 1, wherein in a case where the target card is a sub-card, the target state is an enter standby state or an enter connected state:

the activating corresponding radio frequency resources comprises activating radio frequency resources corresponding to a third frequency band;

5. The signal processing method of any of claims 1 to 4, wherein a plurality of the radio frequency resources comprise M voltage controlled oscillators, N downconverters, N internal low noise amplifiers, where M and N are both positive integers;

each of the voltage controlled oscillators corresponds to a plurality of the downconverters selectively coupled to one of the N internal low noise amplifiers;

The output end of the voltage-controlled oscillator is connected with the local oscillation ends of the corresponding plurality of down converters, and the voltage-controlled oscillator outputs local oscillation signals to the corresponding down converters under the condition that the voltage-controlled oscillator receives the activation signals;

the internal low-noise amplifier is used for amplifying and transmitting the received signal to a down converter connected with the internal low-noise amplifier so that the down converter processes the signal;

The activated radio frequency resource is configured to a working state matched with a frequency band corresponding to the target state, and the method comprises the following steps:

6. The radio frequency receiving device comprises a plurality of radio frequency resources, wherein the radio frequency resources can be activated and configured to an operating state matched with a frequency band corresponding to a target state of a target card, and each radio frequency resource activated and configured to the frequency band corresponding to the target state of the target card can perform down-conversion processing on received signals of corresponding frequency bands.

7. The radio frequency receiving device according to claim 6, wherein the frequency band corresponding to the target state is selected from one of a first frequency band, a second frequency band, and a third frequency band, wherein,

The same frequency of the first frequency band and the third frequency band or the adjacent frequency band, or the same frequency of the second frequency band and the third frequency band or the adjacent frequency band.

8. The radio frequency receiving device of claim 7, wherein the plurality of radio frequency resources comprises M voltage controlled oscillators, N downconverters, N internal low noise amplifiers, where M and N are both positive integers;

9. The radio frequency receiving device according to claim 8, wherein the radio frequency receiving device further comprises N/2 primary splitters and N secondary splitters, each primary splitter corresponds to two of the internal low noise amplifiers, two output ends of the primary splitters are respectively connected to input ends of the corresponding two of the internal low noise amplifiers, and the input ends of the primary splitters are used for being connected to output ends of the corresponding radio frequency front end modules;

the radio frequency receiving device further comprises N selection switches, and the N selection switches are in one-to-one correspondence with the N down converters;

Any one of the down converters is correspondingly provided with two internal low-noise amplifiers, the public end of the selection switch is connected with the down converter, and the switchable end of the selection switch can be switched between the two internal low-noise amplifiers corresponding to the down converter;

10. The radio frequency circuit comprises a radio frequency receiving device, a plurality of antennas and a plurality of same radio frequency front end modules, wherein the radio frequency front end modules are in one-to-one correspondence with the antennas, the radio frequency receiving device is any one of the radio frequency receiving devices in claims 6 to 9, and the radio frequency front end modules are used for carrying out frequency division and pre-amplification processing on signals received by the antennas and outputting the signals to the radio frequency receiving device.

11. The radio frequency circuit of claim 10, wherein the front-end module comprises an antenna port, a filtering sub-circuit on a radio frequency receive path, an amplifying sub-circuit on a radio frequency receive path, a transmit-receive shunt/combiner sub-circuit;

the filtering sub-circuit is used for filtering the signals received by the antenna, and the amplifying sub-circuit is used for pre-amplifying the filtered signals;

12. The radio frequency circuit of claim 11, wherein the transmit/receive branching/combining circuit comprises a first two-way circuit, the filtering module comprises a first filtering module and a second filtering module, the amplifying circuit comprises a first low noise amplifier and a second low noise amplifier,

A first combining end of the first two-way device is formed into the antenna port;

the output end of the first filtering module is connected with the input end of the first low noise amplifier, and the input end of the first filtering module is connected with the first shunt end of the first two-way device;

The output end of the second filtering module is connected with the input end of the second low noise amplifier, and the input end of the second filtering module is connected with the second shunt end of the first two-way device;

13. The radio frequency circuit of any of claims 10 to 12, wherein the radio frequency circuit further comprises a radio frequency transmitting device connected to the front end module such that the front end module transmits a radio frequency transmit signal generated by the radio frequency transmitting device to the antenna.

14. The radio frequency circuit of claim 13, wherein the radio frequency front end module has a plurality of interfaces of transmission paths, and the interfaces of the transmission paths are connected with the radio frequency transmitting device to receive radio frequency transmission signals generated by the radio frequency transmitting device, and transmit the radio frequency transmission signals to corresponding antennas after being combined in the radio frequency front end module.

15. The radio frequency circuit of claim 13, wherein the radio frequency transmitting means comprises a radio frequency signal transmitting module, a plurality of radio frequency power amplifiers, a plurality of single-pole multiple-way switches, the radio frequency signal transmitting module comprising a plurality of signal transmitting ports, the plurality of radio frequency power amplifiers being in one-to-one correspondence with the plurality of signal transmitting ports, and the plurality of radio frequency power amplifiers being in one-to-one correspondence with the plurality of single-pole multiple-way switches,

16. The radio frequency circuit of any of claims 10 to 12, wherein the number of downconverters in any one set of the radio frequency resources is an integer multiple of the number of antennas;

In the case where the radio frequency resource includes internal low noise amplifiers, the number of internal low noise amplifiers in the radio frequency resource is an integer multiple of the number of antennas.

17. A receive resource control module, wherein the receive resource control module comprises:

One or more processors;

a memory having one or more programs stored thereon, which when executed by the one or more processors, cause the one or more processors to implement the signal processing method of any of claims 1 to 5.

18. A terminal comprising a radio frequency circuit as claimed in any one of claims 10 to 16 and a receive resource control module as claimed in claim 17.

19. A computer readable medium having stored thereon a computer program which when executed by a processor implements the signal processing method of any of claims 1 to 5.