CN108923793B

CN108923793B - Multi-way selector switch and related products

Info

Publication number: CN108923793B
Application number: CN201810713158.1A
Authority: CN
Inventors: 杨鑫
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2018-06-29
Filing date: 2018-06-29
Publication date: 2021-06-01
Anticipated expiration: 2038-06-29
Also published as: CN108923793A

Abstract

The embodiment of the present application discloses a multiplexer switch and related products, which are applied to electronic equipment. The electronic device includes an antenna system and a radio frequency circuit, the antenna system includes four antennas, and the multiplexer switch includes eight T ports and 4 P ports, the 8 T ports include 2 first T ports and 6 second T ports, the electronic device supports dual-band single-shot mode, and each first T port is fully connected to the 4 P ports, each second T port is connected to 2 P ports among the 4 P ports, and the P ports connected to multiple second T ports that support the signal receiving function of the same frequency band cover the 4 P ports ports, and the P ports connected to each of the four T ports in the signal receiving state are different from each other. The technical solution provided by the present application has the advantages of reducing the number of switches and improving the index performance of the radio frequency of the electronic device.

Description

Multi-way selector switch and related products

Technical Field

The application relates to the technical field of mobile terminals, in particular to a multi-way selection switch and a related product.

Background

With the widespread use of a large number of electronic devices such as smart phones, smart phones have more and more applications and more powerful functions, and smart phones are developed towards diversification and personalization directions and become indispensable electronic products in user life. Electronic equipment in a fourth generation 4G mobile communication system generally adopts a single-antenna or dual-antenna radio frequency system architecture, and electronic equipment supporting the radio frequency system architecture of 4 antennas is proposed in a new air interface NR system of a fifth generation 5G mobile communication system at present.

Disclosure of Invention

The embodiment of the application provides a multi-way selection switch and a related product, so as to improve the radio frequency index performance and functionality of electronic equipment.

In a first aspect, an embodiment of the present application provides a multi-way selector switch, which is applied to an electronic device, where the electronic device includes an antenna system and a radio frequency circuit, the antenna system includes 4 antennas, the multi-way selector switch includes 8T ports and 4P ports, the 8T ports include 2 first T ports and 6 second T ports, the electronic device supports a dual-frequency single-transmit mode, each first T port is fully connected to the 4P ports, each second T port is connected to 2P ports of the 4P ports, the P ports connected to a plurality of second T ports supporting signal receiving functions in the same frequency band cover the 4P ports, and the P ports connected to each T port of the 4T ports in a signal receiving state are different from each other;

the multi-path selection switch is used for connecting the radio frequency circuit and the antenna system to realize the preset function of the electronic equipment in a frequency division multiplexing FDD mode, the preset function comprises a first function and a second function, the first function is a function of supporting alternate sending of SRS between transmitting antennas and sending of 4-port SRS, and the second function is a function of supporting simultaneous data receiving of the 4 antennas.

In a second aspect, a function control method is provided, which is applied to an electronic device, where the electronic device includes an antenna system, a radio frequency circuit, and a multi-way selector switch, the multi-way selector switch includes 8T ports and 4P ports, the 8T ports include 2 first T ports and 6 second T ports, the electronic device supports a dual-frequency single-shot mode, each first T port is fully connected to the 4P ports, each second T port is connected to 2P ports of the 4P ports, the P ports connected to a plurality of second T ports supporting signal receiving functions in the same frequency band cover the 4P ports, and the P ports connected to each T port of the 4T ports in a signal receiving state are different from each other; the method comprises the following steps:

the electronic equipment determines to execute a preset function, wherein the preset function comprises a first function and a second function, the first function is a function of supporting alternate transmission of a single-frequency-band Sounding Reference Signal (SRS) among transmitting antennas in a single-transmission mode and transmitting a 4-port SRS, and the second function is a function of supporting the 4-port antennas to simultaneously receive data;

in the process of starting the first function, the electronic equipment adjusts the matching state between 3T ports of 4T ports currently occupied by the second function and the 4P ports according to the P port currently occupied by the first function; the 3T ports are ports other than the first T port among the 4T ports.

In a third aspect, there is provided a radio frequency system comprising an antenna system, radio frequency circuitry and a multiplexer switch according to any of claims 1-17;

In a fourth aspect, there is provided a wireless communication device comprising an antenna system, radio frequency circuitry, and a multi-way selector switch as claimed in any one of claims 1 to 17;

the multi-path selection switch is used for connecting the radio frequency circuit and the antenna system to realize the preset function of the electronic equipment in a frequency division multiplexing FDD mode, the preset function comprises a first function and a second function, the first function is a function of supporting alternate sending of SRS between transmitting antennas and sending of 4-port SRS, and the second function is a function of supporting the 4 antennas to receive data simultaneously;

the wireless communication device includes at least any one of: electronic equipment, base station.

It can be seen that, in the embodiment of the present application, the electronic device includes an antenna system, a radio frequency circuit, and a multi-way selection switch, where the antenna system specifically includes 4 antennas, the multi-way selection switch includes 8T ports and 4P ports, and the multi-way selection switch connects the radio frequency circuit and the antenna system, because a second T port of the multi-way selection switch only needs to be connected with 2P ports, a preset function in an FDD system can be implemented, and compared with a switch in which all T ports are fully connected, the switch number can be effectively reduced, thereby reducing insertion loss of a radio frequency link switch, improving an index performance of a radio frequency of the electronic device, and compared with a switch in which the second T port is connected with only a single P port, the preset function in the FDD system can be supported, that is, functionality of the electronic device is expanded.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a 4P8T full-connection switch provided in an embodiment of the present application;

fig. 3 is a schematic structural diagram of a simplified 4P8T switch provided in the embodiments of the present application;

fig. 4A is an exemplary structure of a transceiver signal processing circuit and a receive signal processing circuit provided in an embodiment of the present application;

fig. 4B is an exemplary structure of the multi-way selector switch in the dual-frequency single-shot mode at 4P8T according to the embodiment of the present application;

fig. 5A is an exemplary structure of 2 independent circuit modules provided in an embodiment of the present application;

fig. 5B is an exemplary structure of 3 independent circuit modules provided in the embodiments of the present application;

fig. 5C is an exemplary structure of 4 independent circuit modules provided in the embodiments of the present application;

fig. 5D is an exemplary structure of 5 independent circuit modules provided in the embodiments of the present application;

fig. 5E is an exemplary structure of 6 independent circuit modules provided in the embodiments of the present application;

fig. 5F is an exemplary structure of 7 independent circuit modules provided in the embodiments of the present application;

fig. 5G is an exemplary structure of 8 independent circuit modules provided in the embodiments of the present application;

fig. 6 is an exemplary structure of an antenna system provided in an embodiment of the present application;

fig. 7 is an exemplary structure of another antenna system provided in the embodiments of the present application;

fig. 8 is a flowchart illustrating a method for controlling functions of an electronic device according to an embodiment of the present disclosure;

fig. 9 is an exemplary structure of a radio frequency system according to an embodiment of the present application;

fig. 10 is an exemplary structure of a wireless communication device provided in an embodiment of the present application;

fig. 11 is a schematic diagram of a wireless charging receiver that multiplexes antennas of a wireless communication device according to an embodiment of the present disclosure;

fig. 12 is a schematic structural diagram of a loop array antenna composed of 4 antennas according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present disclosure.

The terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The electronic device according to the embodiment of the present application may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem in a 5G NR system, and various forms of User Equipment (User Equipment, UE), a Mobile Station (Mobile Station, MS), a terminal device (terminal device), a Customer Premise Equipment (CPE) or a portable broadband wireless device (Mobile Wifi, MIFI), and the like. For convenience of description, the above-mentioned devices are collectively referred to as electronic devices.

At present, the SRS switching4 antenna transmitting function of a mobile phone is a necessary option of the CMCC of the china mobile communication group in "white paper terminal of the chinese mobile 5G scale test technology", and is selectable in the third generation partnership project 3GPP, and the main purpose of the SRS switching4 antenna transmitting function is to determine the quality and parameters of 4 channels of channels by measuring uplink signals of 4 antennas of the mobile phone by a base station, and perform beam forming of a downlink maximized multiple-input multiple-output Massive MIMO antenna array for the 4 channels according to channel reciprocity, so as to finally obtain the optimal data transmission performance of the downlink 4x4 MIMO.

In order to meet the requirement of switching transmission of 4-antenna SRS and simultaneous operation of downlink 4X4MIMO in an FDD NR system and/or an FDD LTE system, the radio frequency architecture provided in the embodiment of the present application, which uses a simplified 4PnT antenna switch as a core, can reduce the number of switches connected in series in each path (by integrating all or part of the switches into the 4PnT switch) compared with a 3P 3T/DPDT/multi-path small-switch switching scheme, thereby reducing link loss and optimizing the overall transmission and reception performance of the terminal. The following describes embodiments of the present application in detail.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a multi-way selector switch 10 provided in an embodiment of the present application, the multi-way selector switch is applied to an electronic device 100, the electronic device 100 includes an antenna system 20 and a radio frequency circuit 30, the antenna system 20 includes 4 antennas, the multi-way selector switch 10 includes n T ports and 4P ports, the n T ports include m first T ports and n-m second T ports, the electronic device supports a single-shot mode, each first T port is fully connected to the 4P ports, each second T port is connected to 2P ports of the 4P ports, the P ports connected to a plurality of second T ports supporting signal receiving functions of the same frequency band cover the 4P ports, and the P ports connected to each T port of the 4T ports in a signal receiving state are different from each other, in this application, m is 2 and n is 8, i.e. there are 8T ports, where the number of the first T ports is 2 and the number of the second T ports is 6.

The multi-way selector switch 10 is configured to connect the radio frequency circuit 30 and the antenna system 20 to implement a preset function of the electronic device 100 in a frequency division multiplexing FDD system, where the preset function includes a first function and a second function, the first function is to support alternate transmission of SRS between transmitting antennas through sounding reference signals SRS and to transmit SRS with 4 ports, and the second function is to support simultaneous data reception by the 4 antennas.

The function of supporting alternate transmission of the sounding reference signal SRS among the transmitting antennas and transmitting the 4-port SRS refers to a process that the electronic equipment and the base station interactively determine the channel quality corresponding to each antenna through a round training mechanism. The electronic equipment also comprises a radio frequency transceiver which is connected with the radio frequency circuit and forms a radio frequency system of the electronic equipment together with the radio frequency circuit, the multi-way selection switch and the antenna system. When the electronic device is in a downlink 4x4MIMO working mode, the T ports and the P ports in 4 downlink channels of the same frequency band are in one-to-one correspondence. In design principle, four T ports supporting the receiving function in the same frequency band must be connected to 4P ports, respectively, so as to ensure that the downlink four-path receiving function can be realized.

The P Port is called a Port (polarization) Port in the present application, the Port for connecting an antenna in a multiplexer switch in the present application is called a Port, the T Port is called a thru, a Throw in, and the Port for connecting a radio frequency circuit in a multiplexer switch in the present application is called a Port, such as a 4P4T switch.

Because only 2 first T ports in the 8T ports are fully connected with the 4P ports, and each port in the second T port is only connected with 2 antennas for receiving, compared with the mode that each T port in the 8T ports is fully connected with 4P ports, the number, volume and cost of built-in field effect transistors of a 4P8T switch can be reduced, compared with the simplest state that each port in the second T port is only connected with a single P port, the synchronous work of the SRS function and the downlink 4X4MIMO function under the FDD mode is expanded in function, and therefore the applicability is improved. This section is explained in detail below.

For example, if n is 8, the multi-way switch is formed by fets, and if each of the 8T ports is fully connected to 4P ports, the number of fets in the multi-way switch is 8+8 × 4 × 3+4 — 108 as shown in the exemplary structure diagram of the multi-way switch in fig. 2; if only 2T ports of the 8T ports are all connected to 4P ports, and each of the remaining T ports is connected to 2P ports, the number of field effect transistors of the multi-way switch is 8+ (2 × 4+ (8-2) × 3+4 ═ 72, as shown in the exemplary structure diagram of the multi-way switch shown in fig. 3. It can save 36 fets for the 4P8T mux switch of the present application.

Therefore, the number of the T ports which are fully connected with 4P ports in the T ports can be limited, and the switch number of the radio frequency system of the electronic equipment can be effectively reduced. That is, the number of the fully connected T ports has a large influence on the performance of the radio frequency system.

It can be seen that, in the example of this application, the electronic device includes an antenna system, a radio frequency circuit and a multi-way selection switch, the antenna system specifically includes 4 antennas, the multi-way selection switch includes 8T ports and 4P ports, and the multi-way selection switch connects the radio frequency circuit and the antenna system, because the second T port of the multi-way selection switch only needs to connect 2P ports to realize the preset function in the FDD system, for the switch in which all T ports are fully connected, the number of switches can be effectively reduced, thereby reducing the insertion loss of the radio frequency link switch, improving the radio frequency index performance of the electronic device, and for the second T port only connects a single P port, the second T port connected with 2P ports can support the preset function in the FDD system, that is, the functionality of the electronic device is expanded.

In one possible example, each of the 4P-ports is connected to a corresponding antenna; each P port of the 4P ports is connected with a corresponding antenna; the first T port supports a signal transceiving function, and the second T port supports only a signal receiving function.

Since the electronic device supports the single-transmission mode, in the new air interface 5G NR system of the fifth generation mobile communication, the electronic device supports at most dual-frequency single uplink UL2 × 2MIMO downlink DL4 × 4MIMO, that is, logically includes 8 signal receiving paths and 2 signal transmitting paths.

Wherein, the support of the transceiving function refers to the support of a signal receiving function and a signal transmitting function at one T port.

As can be seen, in this example, since the multi-way selector switch is specifically composed of 2 first T ports and 6 second T ports, the number of switches of the multi-way selector switch is reduced relative to the form in which all the T ports are fully connected to the P port, the number of switches of the radio frequency system of the electronic device can be reduced, and the path loss can be reduced, thereby improving the transmission power and the reception sensitivity, improving the data transmission rate in the 5G NR, improving the uplink and downlink coverage of the mobile phone, and reducing the power consumption and the cost.

In one possible example, the single shot mode of the present application may be: the dual-frequency single-shot mode can support the single-frequency single-shot mode in other multiplex switches.

The dual-frequency single-transmission mode refers to an operation mode in which the electronic device can support a dual-frequency band, a UL single-transmission path or a DL4 reception path at the maximum capacity.

In one possible example, the multiway switch includes 8 first switch tubes, (2 × 4+ (8-2) × 3 second switch tubes, and 4 third switch tubes, the first switch tubes correspond to the T ports, the third switch tubes correspond to the P ports, every 3 second switch tubes are connected in series to form a switch subunit between the T ports and the P ports, 2 second switch tubes at two ends of the switch subunit are respectively connected to 1T port and 1P port, the second switch tube in the middle of the switch subunit is grounded, and gates of each first switch tube, each second switch tube, and each third switch tube are connected to a switch control chip.

In the concrete implementation, when the switch subunit is disconnected, if not grounded, the parasitic parameter has a large influence on the performance of other switched-on ports in the multi-path selection switch, so the switch subunit is set to be 3 switch tubes, wherein 3 switch tubes can be connected in common source, when the switch subunit is disconnected, 2 switch tubes on two sides are all disconnected, and the middle switch tube is grounded.

In the multi-way switch described in the embodiment of the present application, the concepts such as connection and full connection between the T port and the P port all refer to a state where the T port in the multi-way switch is connected to the P port through the switch subunit. The first, second and third switch tubes may be MOS transistors, the electronic device may be connected to the gate of each MOS transistor in the first, second and third switch tubes through a port of a switch control chip, the switch control chip may employ an MIPI interface, and the electronic device may control a signal of a driving port of the switch control chip to control a connection state between any T port and any P port.

Therefore, in this example, the switch subunit of the multi-way selector switch includes three second switch tubes, and the middle second switch tube is grounded, so that the influence of the parasitic parameters of the current switch tube on the performance of other conducting ports can be avoided in the open circuit state, and the switch control stability is improved.

In one possible example, the single shot mode is a dual frequency single shot mode, m is 2; the radio frequency circuit of the electronic equipment logically comprises 2 paths of transmitting signal processing circuits and 8 paths of receiving signal processing circuits; the 1-path transmitting signal processing circuit and the 1-path receiving signal processing circuit of each frequency band are connected in parallel through a duplexer to form a transmitting and receiving signal processing circuit, the duplexer is used for combining transmitting signals and receiving signals of the same frequency band so as to realize that the electronic equipment can simultaneously work on different frequency points in the FDD mode in a transmitting and receiving mode;

the radio frequency circuit is physically composed of at least 1 independent circuit module;

the signal transceiving ports of the at least 1 independent circuit module are used for connecting the first T port, and the signal receiving ports of the at least 1 independent circuit module are used for connecting the second T port.

The signal receiving and transmitting port is a port of the receiving and transmitting signal processing circuit close to the multi-way selection switch, and the signal receiving port is a port of the receiving signal processing circuit close to the multi-way selection switch.

In this example, the radio frequency processing circuit may be configured to connect the transmit signal processing circuit and the 1-path receive signal processing circuit in parallel through the duplexer to form a receive signal processing circuit, so as to combine transmit signals and receive signals in the same frequency band, implement simultaneous operation of transmitting and receiving at different frequency points in the FDD system, and expand functionality of the electronic device.

In this possible example, as shown in fig. 4A, the transceiver processing circuit includes a power amplifier PA, a low noise amplifier LNA, a duplexer, and a power coupler, the radio frequency transceiver connects the input port of the PA and the output port of the LNA, the output port of the PA and the input port of the LNA connect the duplexer, the duplexer connects the coupler, and the coupler connects the first T port;

the receiving signal processing circuit comprises a Low Noise Amplifier (LNA) and a filter, the radio frequency transceiver is connected with an output port of the LNA, an input port of the LNA is connected with the filter, and the filter is connected with the second T port.

Therefore, in this example, the transmit-receive signal processing circuit and the receive signal processing circuit both support their corresponding functions in a simplified manner, which is beneficial to modularization and cost reduction, and improves the configuration efficiency of the radio frequency system in the electronic device.

In this possible example, n-8, the at least 1 independent circuit module comprises k independent circuit modules, k-1, 2, 3, 4, 5, 6, 7 or 8.

As shown in fig. 4B, in the case of dual-frequency single-shot, where n is 8, and m is 2, the number of switching tubes of the multiway switch is 8+ (2 × 4+ (8-2) × 3+8 is 76, as shown in fig. 4B, Nx indicates a frequency band supported by the electronic device, Ny indicates another frequency band supported by the electronic device, such as n77(3.3 to 4.2GHz), n78(3.3 to 3.8GHz), n79(4.4GHz to 4.99GHz), and the like in the 5G NR system, TRX indicates a port supporting a signal transmitting function, TX indicates a port supporting a signal transmitting function, and RX indicates a port supporting a signal receiving function.

When k is equal to 1, the 2-channel transceiving signal processing circuit and the 6-channel receiving signal processing circuit are arranged in the same independent circuit module;

when k is 2, 2 transceiver processing circuits and 6 receiving signal processing circuits are disposed in 2 independent circuit modules, as shown in fig. 5A, for example, a first independent circuit module includes 1 transceiver processing circuit and 3 receiving signal processing circuits, a second independent circuit module includes 1 transceiver processing circuit and 3 receiving signal processing circuits, it is needless to say that the first independent circuit module includes 2 transceiver processing circuits, and the second independent circuit module includes 6 receiving signal processing circuits, and there may be other permutation and combination manners, which is not limited herein;

when k is 3, the 2-channel transceiving signal processing circuit and the 6-channel receiving signal processing circuit are disposed in 3 independent circuit modules, as shown in fig. 5B, as the first independent circuit module is disposed with 2-channel transceiving signal processing circuits, the second independent circuit module is disposed with 3-channel receiving signal processing circuits, and the third independent circuit module is disposed with 3-channel receiving signal processing circuits, it is needless to say that the first independent circuit module is disposed with 1-channel transceiving signal processing circuit and 2-channel receiving signal processing circuits, the second independent circuit module is disposed with 1-channel transceiving signal processing circuit and 2-channel receiving signal processing circuits, and the third independent circuit module is disposed with 2-channel receiving signal processing circuits, which is not limited herein;

when k is 4, referring to fig. 5C, the first independent circuit module is provided with 1 transceiver processing circuit, the second independent circuit module is provided with 1 transceiver processing circuit, the third independent circuit module is provided with 3 receiver processing circuits, and the fourth independent circuit module is provided with 3 receiver processing circuits, which is not limited herein.

When K is 5, referring to fig. 5D, the first independent circuit module is provided with 1 transceiver processing circuit, the second independent circuit module is provided with 1 transceiver processing circuit, the third independent circuit module is provided with 2 receiver processing circuits, the fourth independent circuit module is provided with 2 receiver processing circuits, and the fifth independent circuit module is provided with 2 receiver processing circuits, which is not limited herein.

When K is 6, referring to fig. 5E, the first independent circuit module is provided with 1 transceiver processing circuit and 1 received signal processing circuit, the second independent circuit module is provided with 1 transceiver processing circuit and 1 received signal processing circuit, the third independent circuit module is provided with 1 received signal processing circuit, the fourth independent circuit module is provided with 1 received signal processing circuit, and the fifth independent circuit module is provided with 1 received signal processing circuit, which is not limited uniquely here.

When K is 7, referring to fig. 5F, the first independent circuit module is provided with 2-channel transmit/receive processing circuits, and the remaining 6 independent circuit modules are respectively provided with 1-channel receive processing circuit, which is not limited herein.

When K is 8, referring to fig. 5G, the first independent circuit module is provided with 1-channel transceiving processing circuit, the second independent circuit module is provided with 1-channel transceiving processing circuit, and the remaining 6 independent circuit modules are respectively provided with 1-channel receiving processing circuit.

It can be seen that, in this example, the physical form of the rf circuit adapted to the 4P8T multi-way selector switch may be various, and the number of independent circuit modules may be flexibly configured according to the requirement.

It can be seen that, in this example, because the transmit signal processing circuit and the receive signal processing circuit can be connected in parallel through the duplexer in the radio frequency processing circuit to form a transmit-receive signal processing circuit, thereby combining the transmit signal and the receive signal of the same frequency band, implementing the electronic device in the FDD system to transmit and receive the simultaneous working on different frequency points, and the 2-channel transmit-receive signal processing circuit corresponding to two frequency bands can realize the frequency band selection through the change-over switch, which is favorable for expanding the functionality of the electronic device.

In FDD mode and single-shot mode, the PAs in the multiple transmit signal processing circuits do not work simultaneously, so that multiple PAs in the multiple transmit signal processing circuits can be arranged in the same independent circuit module.

In this example, the transmit-receive signal integrated processing circuit and the receive signal processing circuit both support their corresponding functions in a simplified manner, which is beneficial to modularization and cost reduction, and improves the configuration efficiency of the radio frequency system in the electronic device.

In one possible example, the 4 antennas include a first antenna, a second antenna, a third antenna, and a fourth antenna, and the first antenna, the second antenna, the third antenna, and the fourth antenna are all antennas supporting a 5G NR frequency band.

The 5G NR frequency band may include, for example, 3.3GHz-3.8GHz, and 4.4GHz-5 GHz.

In one possible example, the 4-branch antenna includes a first antenna, a second antenna, a third antenna, and a fourth antenna, the first antenna and the fourth antenna are antennas supporting an LTE band and a 5G NR band, and the second antenna and the third antenna are antennas supporting only a 5G NR band.

Wherein, the first and the fourth antennas are used for supporting DL 4x4MIMO of each frequency band on the LTE terminal. Its 2 receive antennas are shared with the 5G NR antenna. The LTE frequency bands may include, for example, 1880-1920MHz, 2496-2690 MHz.

In one possible example, as shown in fig. 6, the antenna system further includes a first combiner and a second combiner, where a first port of the first combiner is used to connect the first antenna, a second port of the first combiner is used to connect a first receiving path in LTE4x 4MIMO of the electronic device, and a third port of the first combiner is used to connect a corresponding P port in the multi-way selector switch; a first port of the second combiner is configured to be connected to the fourth antenna, a second port of the second combiner is configured to be connected to a second receiving path in LTE4x 4MIMO of the electronic device, and a third port of the second combiner is configured to be connected to a corresponding P port in the multi-way selector switch.

The LTE4 × 4MIMO is a downlink LTE receiving circuit, and may be defined as a third receiving path. Since LTE currently has 2 receptions. When LTE4x 4MIMO is supported, the third and fourth receive channels may be added.

The electronic device will reserve 1 antenna with better performance to the main set receiving PRX in the circuit for standby use according to the actual 4 antenna condition, and the first T port in the switch has the receiving and transmitting function, i.e. it can perform TX and PRX functions, and can switch the antenna arbitrarily, so it is not necessary to limit the connection port of the shared antenna.

In one possible example, as shown in fig. 7, the antenna system further includes a first SPDT switch and a second SPDT switch, wherein a first port of the first SPDT switch is configured to connect to the first antenna, a second port of the first SPDT switch is configured to connect to a first receive path in LTE4x 4MIMO of the electronic device, and a third port of the first SPDT switch is configured to connect to a corresponding P port in the multi-way selection switch; the first port of the second SPDT switch is configured to be connected to the fourth antenna, the second port of the second SPDT switch is configured to be connected to a second receiving path in the LTE4x 4MIMO of the electronic device, and the third port of the second SPDT switch is configured to be connected to a corresponding P port in the multiplexer switch.

Referring to fig. 8, fig. 8 is a schematic flow chart of a function control method provided in an embodiment of the present application, and is applied to an electronic device, where the electronic device includes an antenna system, a radio frequency circuit, and a multi-way selector switch, the multi-way selector switch includes 8T ports and 4P ports, the 8T ports include 2 first T ports and 6 second T ports, the electronic device supports a single-shot mode, each first T port is fully connected to the 4P ports, each second T port is connected to 2P ports of the 4P ports, the P ports connected to a plurality of second T ports supporting signal receiving functions in the same frequency band cover the 4P ports, and the P ports connected to each T port of the 4T ports in a signal receiving state are different from each other; the method comprises the following steps:

s801, the electronic device determines to execute a preset function, wherein the preset function comprises a first function and a second function, the first function is a function of supporting alternate transmission of Sounding Reference Signals (SRS) in a single-transmission mode among transmitting antennas and transmitting a 4-port SRS, and the second function is a function of supporting the 4 antennas to simultaneously receive data;

s802, in the process of starting the first function, the electronic device adjusts the matching state between 3T ports of 4T ports currently occupied by a single frequency band where the second function is located and the 4P ports according to the P port currently occupied by the single frequency band where the first function is located, and the 3T ports can be specifically 3T ports except for the first T port among the 4T ports.

Specifically, the implementation method of step S802 may specifically be:

if the single frequency band is an Nx frequency band, determining a P port occupied by the T1 where the first function is located in the current probing period, and determining a T port where the Nx frequency band where the second function is located currently occupies the P port, if the T port is a second T port, adjusting the P port currently occupied by the T port to another P port.

The one T port may be specifically one of T3, T5, and T7.

Specifically, the implementation method of step S802 may specifically be:

if the single frequency band is an Ny frequency band, determining a P port occupied by the T2 where the first function is located in the current probing period, and determining a T port where the Ny frequency band where the second function is located currently occupies the P port, if the T port is a second T port, adjusting the P port currently occupied by the T port to another P port.

The one T port may be specifically one of T4, T6, and T8.

The electronic equipment executes the first and second functions and can meet the function requirements in a 5G NR FDD system.

Therefore, in the embodiment of the application, the electronic device can realize the preset function in the 5G NR FDD system through the radio frequency system constructed based on the multi-way selection switch, and the multi-way selection switch is simplified in structure and high in control efficiency, so that the real-time performance and the efficiency of the electronic device for completing the preset function are improved.

The following describes in detail the switching process between the T port and the P port in the embodiment of the present application, taking the multiway switch shown in fig. 4B as an example. Since the 5G NR protocol currently defines that 4P ports can only operate in the same frequency band in the same time period, the dual-frequency single-transmission of the present application supports dual-frequency, but the SRS process in the same time period only detects one frequency band, where it is assumed that an Nx frequency band is detected, and it is assumed that 4T ports of the Nx frequency band in the initial state of the multi-way switch are sequentially connected to the 4P ports, that is, a first T port T1 of the 4T ports is connected to P1, a third T port T3 is connected to P2, a fifth T port T5 is connected to P3, and a seventh T port T7 is connected to P4, since only one antenna can transmit in one sounding cycle, 4 antennas need to be polled; the 4P ports are respectively connected to the 4 antennas, and when the electronic device determines that the preset function is enabled, in the process of enabling the SRS, the electronic device only transmits one antenna in one sounding period because the electronic device is dual-frequency single-transmission, for example, the electronic device can transmit and receive signals through a T1 and a P1 channel (the channel is pre-conducted to be used as a receiving channel) in a first sounding period to receive Nx signals and detect channel quality of the first antenna, and the P ports corresponding to T3, T5, and T7 are not occupied in the first sounding period, so that switching does not occur in the period.

Secondly, the electronic device may control the T1 to switch from the initial state to the connection P1 to the connection P2 in the second detection period, so that the T1 and the P2 are turned on to transmit the Nx signal for channel detection of the signal receiving second antenna, in this period, P2 corresponding to the original T3 is occupied, in order to maintain the signal receiving function of the T3, the T3 needs to switch to the connection P1, and the T5 and the T7 are not occupied, so the T5 and the T7 do not need to switch.

Third, the electronic device may control the T1 to switch from P2 to P3 in a third probing period, so that the T1 and the P3 are turned on to transmit and receive Nx signals for signal reception and third antenna channel probing, in this period, the P3 corresponding to the original T5 is occupied, and then the T5 needs to switch to connect to the P2 in order to maintain the signal receiving function of the T5.

Finally, the electronic device may control the T1 to switch from P3 to P4 in a fourth probing period, so that the T1 and the P4 conduct transceiving signals for signal reception and fourth antenna channel probing, in this period, P4 corresponding to the original T7 is occupied, and then in order to maintain the signal receiving function of T7, the T7 needs to switch to connect to P3.

To this end, the electronic device completes the SRS detection process, and T1 is connected to P4 for signal reception, T3 is connected to P1 for signal reception, T5 is connected to P2 for signal reception, and T7 is connected to P3 for signal reception.

Referring to fig. 9, fig. 9 is a schematic structural diagram of a radio frequency system according to an embodiment of the present application, where the radio frequency system includes an antenna system, a radio frequency circuit, and a multi-way selector switch according to any of the embodiments;

Referring to fig. 10, fig. 10 is a schematic structural diagram of a wireless communication device according to an embodiment of the present application, where the wireless communication device includes an antenna system, a radio frequency circuit, and a multi-way selection switch according to any of the embodiments;

In addition, as shown in fig. 11, the 4 antennas in the antenna system described in the embodiment of the present application may also be multiplexed by the wireless charging receiver of the electronic device, specifically, the wireless charging receiver comprises a receiving antenna and a receiving control circuit, wherein the receiving antenna is matched with a transmitting antenna of a wireless charging transmitter (under the condition of same or similar frequency, the receiving antenna resonates, energy is transmitted in a wireless transmission mode in a radiation resonant magnetic coupling mode), the receiving control circuit converts the energy into direct current DC through a loop array antenna and outputs the direct current DC to a battery for charging, the receiving control circuit can dynamically adjust the frequency of the loop array antenna, and matching the frequency with the transmitting antenna of the wireless charging transmitter to realize the pairing charging, or, the wireless charging transmitter is interacted with the frequency variation range in real time to realize an exclusive encryption wireless charging mode.

The receiving antenna may be an antenna composed of at least 1 of 4 antennas (in many cases, the antennas are gated by a switch).

For example: as shown in fig. 12, the receiving antenna is a loop array antenna formed by the above-mentioned 4 antennas, the 4 antennas specifically include an antenna 1, an antenna 2, an antenna 3, and an antenna 4, where the antenna 1 and the antenna 4 support LTE and 5G NR frequency bands, the antenna 2 and the antenna 3 support only 5G NR frequency band, a port of the antenna 1 and a port of the antenna 4 are used as ports of the loop array antenna, where adjacent antennas are connected by a gating circuit 170 having an isolation function, the gating circuit 170 includes a spacer 171 and a switch 172, the spacer 171 is a conductor, the switch 172 is further connected to a controller, and the electronic device can communicate with the switch 172 of each gating circuit 170 in a wireless charging mode to form a loop array antenna to receive energy. By adding the spacer 171 between the antennas, the gating circuit 170 reduces mutual coupling between multiple antennas of the electronic device in a normal communication mode, improves isolation between the multiple antennas, optimizes antenna performance, and can connect the multiple antennas in series to form a loop array antenna through the switch 171, so that the transmitting antenna can be better matched to transmit energy, and in addition, because the capabilities of the antenna 1 and the antenna 4 are stronger than those of the antenna 2 and the antenna 3, the loop array antenna can reduce energy transmission loss as much as possible.

The foregoing is an implementation of the embodiments of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the embodiments of the present application, and these modifications and decorations are also regarded as the protection scope of the present application.

Claims

1. a multiplexing switch, it is characterized in that, be applied to electronic equipment, described electronic equipment comprises antenna system and radio frequency circuit, described antenna system comprises 4 antennas, and described multiplexing switch comprises 8 T ports and 4 P ports, the 8 T ports include 2 first T ports and 6 second T ports, the electronic device supports dual-band single-shot mode, and each first T port is fully connected to the 4 P ports ports, each second T port is connected to 2 P ports among the 4 P ports, the P ports connected to multiple second T ports supporting the signal receiving function of the same frequency band cover the 4 P ports, and The P ports connected to each T port in the 4 T ports in the signal receiving state are different from each other;

The multiplexer switch is used to connect the radio frequency circuit and the antenna system to realize the preset function of the electronic device in the frequency division multiplexing FDD system, and the preset function includes a first function and a second function , the first function is to support the function of transmitting 4-port SRS through the sounding reference signal SRS in turn among the transmitting antennas, and the second function is to support the function of simultaneously receiving data for the 4 antennas;

Wherein, in the process of enabling the first function, the matching status between 3 T ports and the 4 P ports among the 4 T ports currently occupied by the second function is based on the current state of the first function. The occupied P ports are adjusted; the three T ports are ports other than the first T port among the four T ports; wherein, when the electronic device is in the supported first frequency band, it is determined that the first T port A P port occupied by the first T port where the function is located in the current detection period, it is determined that the first frequency band where the second function is located currently occupies a T port of the one P port, if the one T port is the second T port, The one T port currently occupies one P port is adjusted to another P port.

2 . The multiplexer switch according to claim 1 , wherein the first T port supports a signal transceiving function, and the second T port only supports a signal receiving function. 3 .

3. The multiplexer switch according to claim 1, wherein the multiplexer switch comprises 8 first switch tubes, 60 second switch tubes, and 4 third switch tubes, the first The switch tube corresponds to the T port, the third switch tube corresponds to the P port, and every three second switch tubes are connected in series to form a switch subunit between the T port and the P port. The two second switch tubes at both ends of the subunit are respectively connected to a T port and a P port, the second switch tube in the middle of the switch subunit is grounded, each first switch tube, each of the second switch tubes The switch tube and the gate of each third switch tube are connected to the switch control chip.

4 . The multiplexing switch according to claim 1 , wherein the radio frequency circuit comprises: 2 channels of transceiver signal processing circuits and 6 channels of receiving signal processing circuits, the 2 channels of transceiver signal processing circuits are respectively connected to the Two first T ports, the six receiving signal processing circuits are respectively connected to the six second T ports.

5. The multiplexer switch according to claim 4, wherein the electronic device further comprises a radio frequency transceiver, and the transceiver signal processing circuit comprises a power amplifier PA, a low noise amplifier LNA, a duplexer and a power coupling The radio frequency transceiver is connected to the input port of the PA and the output port of the LNA, the output port of the PA and the input port of the LNA are connected to the duplexer, and the duplexer is connected to the the coupler, where the coupler is connected to the first T port;

The received signal processing circuit includes a low noise amplifier LNA and a filter filter, the radio frequency transceiver is connected to the output port of the LNA, the input port of the LNA is connected to the filter, and the filter is connected to the second T port .

6 . The multiplexer switch according to claim 5 , wherein the radio frequency circuit comprises k independent circuit modules, and k=1, 2, 3, 4, 5, 6, 7 or 8. 7 .

7. The multiplexer switch according to claim 6, wherein, if k=2,

Each independent circuit module in the 2 independent circuit modules includes: 1 channel of sending and receiving signal processing circuit and 3 channels of receiving signal processing circuit;

Or one independent circuit module in the two independent circuit modules includes: 2 channels of transceiver signal processing circuits, and another independent circuit module in the two independent circuit modules includes: 6 receiving signal processing circuits.

8 . The multiplexer switch according to claim 6 , wherein, if k=3, the three independent circuit modules include: two first independent circuit processing modules and one second independent circuit processing module, wherein,

The first independent circuit processing module includes: 1 channel of sending and receiving signal processing circuits, and the second independent circuit processing module includes 6 channels of receiving signal processing circuits;

Or the first independent circuit processing module includes: 1 channel of receiving signal processing circuit and 1 channel of receiving signal processing circuit, and the second independent circuit processing module includes 4 channels of receiving signal processing circuit.

9. The multiplexer switch according to claim 6, wherein, if k=4, the 4 independent circuit modules comprise: 2 third independent circuit processing modules and 2 fourth independent circuit processing modules, wherein,

The third independent circuit processing module includes: 1 channel of receiving and dispatching signal processing circuits, and the fourth independent circuit processing module includes 3 channels of receiving signal processing circuits;

Or the third independent circuit processing module includes: 1 channel of receiving signal processing circuit and 1 channel of receiving signal processing circuit, and the fourth independent circuit processing module includes 2 channels of receiving signal processing circuit;

Or the third independent circuit processing module includes: 1 channel of receiving signal processing circuit and 2 channels of receiving signal processing circuit, and the fourth independent circuit processing module includes 1 channel of receiving signal processing circuit.

10. The multiplexer switch according to claim 6, wherein, if k=5, the 5 independent circuit modules include: 2 fifth independent circuit processing modules and 3 sixth independent circuit processing modules, wherein,

The fifth independent circuit processing module includes: 1 channel of sending and receiving signal processing circuits, and the sixth independent circuit processing module includes 2 channels of receiving signal processing circuits.

11. The multiplexer switch according to claim 6, wherein, if k=6, the 6 independent circuit modules include: 2 seventh independent circuit processing modules and 4 eighth independent circuit processing modules, wherein,

The seventh independent circuit processing module includes: 1 channel of receiving signal processing circuit and 1 channel of receiving signal processing circuit, and the eighth independent circuit processing module includes 2 channels of receiving signal processing circuit.

12 . The multiplexing switch according to claim 6 , wherein, if k=7, the 7 independent circuit modules include: 1 ninth independent circuit processing module and 6 tenth independent circuit processing modules, wherein,

The ninth independent circuit processing module includes: 2 channels of sending and receiving signal processing circuits, and the tenth independent circuit processing module includes 1 channel of receiving signal processing circuits.

13. The multiplexer switch according to claim 6, wherein, if k=8, the 8 independent circuit modules include: 2 eleventh independent circuit processing modules and 6 twelfth independent circuit processing modules, in,

The eleventh independent circuit processing module includes: 1 channel of receiving and sending signal processing circuits, and the twelfth independent circuit processing module includes 1 channel of receiving signal processing circuits.

14. The multiplexing switch according to any one of claims 1-13, wherein the four antennas comprise a first antenna, a second antenna, a third antenna and a fourth antenna;

The first antenna, the second antenna, the third antenna, and the fourth antenna are all antennas supporting the fifth-generation new air interface 5G NR frequency band.

15. The multiplexing switch according to any one of claims 1-13, wherein the four antennas comprise a first antenna, a second antenna, a third antenna and a fourth antenna, and the first antenna and the fourth antenna is an antenna that supports the long-term evolution LTE frequency band and the fifth-generation new air interface 5G NR frequency band, and the second antenna and the third antenna are antennas that only support the 5G NR frequency band.

16. The multiplexer switch of claim 15, wherein the antenna system further comprises a first combiner and a second combiner, wherein the first port of the first combiner is used for In order to connect the first antenna, the second port of the first combiner is used to connect the first receiving channel in the LTE 4x4 MIMO of the electronic device, and the third port of the first combiner is used for Connect to the corresponding P port in the multiplexer switch; the first port of the second combiner is used to connect the fourth antenna, and the second port of the second combiner is used to connect the electronic The second receive path in the LTE 4x4 MIMO of the device, and the third port of the second combiner is used to connect the corresponding P port in the multiplexer switch.

17. The multiplexer switch of claim 15, wherein the antenna system further comprises a first SPDT switch and a second SPDT switch, wherein the first port of the first SPDT switch is used for In order to connect the first antenna, the second port of the first SPDT switch is used to connect to the first receiving channel in the LTE 4x4 MIMO of the electronic device, and the third port of the first SPDT switch is used to connect all the corresponding P port in the multiplexing switch; the first port of the second SPDT switch is used to connect the fourth antenna, and the second port of the second SPDT switch is used to connect the LTE 4x4 of the electronic device In the second receiving path in MIMO, the third port of the second SPDT switch is used to connect to the corresponding P port in the multiplexing switch.

18. A function control method, characterized by being applied to an electronic device, the electronic device comprising an antenna system, a radio frequency circuit and a multiplexing switch, the antenna system including four antennas, and the multiplexing switch including 8 T ports and 4 P ports, the 8 T ports include 2 first T ports and 6 second T ports, the electronic device supports dual-band single-shot mode, and each first T port is fully connected to all The 4 P ports, each second T port is connected to 2 P ports in the 4 P ports, and the P ports connected to the multiple second T ports supporting the signal receiving function of the same frequency band cover the 4 P ports P ports, and the P ports connected to each of the four T ports in the signal receiving state are different from each other; the method includes:

The electronic device determines to execute a preset function, the preset function includes a first function and a second function, the first function is to support the single-frequency sounding reference signal SRS to be transmitted between the transmitting antennas in a single-transmission manner, sending The function of 4-port SRS, and the second function is to support the function of receiving data at the same time by the 4 antennas;

During the process of enabling the first function, the electronic device adjusts three T ports and the four T ports among the four T ports currently occupied by the second function according to the P ports currently occupied by the first function. Matching state between P ports; the three T ports are ports other than the first T port among the four T ports;

Wherein, the adjusting the matching state between 3 T ports and the 4 P ports among the 4 T ports currently occupied by the second function according to the P ports currently occupied by the first function specifically includes:

If the single frequency band is the Nx frequency band, determine a P port occupied by the T port 1 where the first function is located in the current detection period, and determine that the Nx frequency band where the second function is located currently occupies a T port of the one P port port, if the one T port is the second T port, adjust the one P port currently occupied by the one T port to another P port.

19 . The method according to claim 18 , wherein, according to the P port currently occupied by the first function, adjusting 3 T ports in the 4 T ports currently occupied by the second function and the The matching status between the 4 P ports also includes:

If the single frequency band is the Ny frequency band, determine a P port occupied by the T port 2 where the first function is located in the current detection period, and determine that the Ny frequency band where the second function is located currently occupies a T port of the one P port port, if the one T port is the second T port, adjust the one P port currently occupied by the one T port to another P port.

20. A radio frequency system, characterized by comprising an antenna system, a radio frequency circuit, and the multiplexer switch according to any one of claims 1-17;

The multiplexer switch is used to connect the radio frequency circuit and the antenna system to realize the preset function of the electronic device in the frequency division multiplexing FDD system, and the preset function includes a first function and a second function , the first function is to support the rotation of the sounding reference signal SRS among the transmitting antennas to transmit the 4-port SRS, and the second function is to support the 4 antennas to receive data at the same time.

21. A wireless communication device, comprising an antenna system, a radio frequency circuit, and the multiplexer switch according to any one of claims 1-17;

The wireless communication device includes at least any one of the following: an electronic device and a base station.