CN115441895A

CN115441895A - Radio frequency switch device, radio frequency front end module, radio frequency circuit and electronic equipment

Info

Publication number: CN115441895A
Application number: CN202211401610.3A
Authority: CN
Inventors: 李政; 黄清华; 张新丽; 冯宝新
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2022-11-10
Filing date: 2022-11-10
Publication date: 2022-12-06
Anticipated expiration: 2042-11-10
Also published as: CN115441895B

Abstract

The embodiment of the application provides a radio frequency switch device, a radio frequency front-end module, a radio frequency circuit and electronic equipment, wherein a second output port of a first transceiving module of the radio frequency circuit is connected with a first input port of a second transceiving module, a fourth port of the first radio frequency switch device in the first transceiving module is connected with a second output port of the first transceiving module, the first radio frequency switch device is used for transmitting a first SRS signal received by a first end to a first input port of the second transceiving module through the fourth port, and the second transceiving module is used for transmitting the first SRS signal received by the first input port to a third antenna through a third input/output port and/or to a fourth antenna through a fourth input/output port. According to the embodiment of the application, the amplitude of the SRS signal output by the radio frequency front end module can be improved, and the evaluation quality of the network side on the air interface transmission channel of the electronic equipment is improved.

Description

Radio frequency switch device, radio frequency front end module, radio frequency circuit and electronic equipment

Technical Field

The present application relates to the field of communications technologies, and in particular, to a radio frequency switch device, a radio frequency front end module, a radio frequency circuit, and an electronic apparatus.

Background

The fifth generation mobile communication technology (5 th generation wireless systems,5 g) networking mode includes an independent networking (SA) mode and a non-independent Networking (NSA) mode. The NSA mode employs Long Term Evolution (LTE) and 5G (new radio, NR) for networking.

The EUTRA new radio Dual-Connectivity (endec) technology is supported in the NSA mode. The frequency band used by the ENDC technology may include an N41 frequency band, and the N41 frequency band may specifically be a frequency band of 2515MHz to 2675MHz, which is 160MHz in total.

At present, when an electronic device supporting 5G transmits an SRS signal in an N41 frequency band, an amplitude of the SRS signal output by the radio frequency front end module is low, which affects an evaluation quality of a network side on an air interface transmission channel of the electronic device.

Disclosure of Invention

The application provides a radio frequency switch device, a radio frequency front end module, a radio frequency circuit and electronic equipment, which can improve the amplitude of an SRS signal output by the radio frequency front end module and improve the evaluation quality of a network side to an air interface transmission channel of the electronic equipment.

In a first aspect, an embodiment of the present application provides a radio frequency circuit, which includes a radio frequency front end module, where the radio frequency front end module includes: a first transceiving module and a second transceiving module, wherein,

a first input port and a first output port of the first transceiving module are used for connecting a radio frequency transceiving chip, the first input/output port is used for connecting a first antenna, and the second input/output port is used for connecting a second antenna;

the second output port of the first transceiving module is connected with the first input port of the second transceiving module;

a third input/output port of the second transceiving module is used for connecting a third antenna, and a fourth input/output port of the second transceiving module is used for connecting a fourth antenna;

the first transceiving module comprises: a first radio frequency switching device and a second radio frequency switching device, wherein,

the first end of the first radio frequency switch device is connected with the first input port of the first transceiving module, the second end of the first radio frequency switch device is connected with the first output port of the first transceiving module, the third end of the first radio frequency switch device is connected with the first end of the second radio frequency switch device, and the fourth end of the first radio frequency switch device is connected with the second output port of the first transceiving module;

the second end of the second radio frequency switch device is connected with the first input/output port of the first transceiving module, and the third end of the second radio frequency switch device is connected with the second input/output port of the first transceiving module;

the first radio frequency switching device is to: transmitting a first SRS signal received by the first end to a first input port of a second transceiving module through a fourth end, transmitting a second SRS signal received by the first end to a first end of a second radio frequency switch device through a third end, transmitting a first received signal received by the third end to a first output port of the first transceiving module through the second end, and transmitting a first transmitting signal received by the first end to a first end of the second radio frequency switch device through the third end;

the second radio frequency switching device is for: outputting the second SRS signal or the first transmitting signal received by the first end to the first antenna through the second end and/or outputting the second SRS signal or the first transmitting signal to the second antenna through the third end; transmitting a first receiving signal received by the second terminal and/or the third terminal to the third terminal of the first radio frequency switch device through the first terminal;

the second transceiving module is used for: and transmitting the first SRS signal received by the first input port to the third antenna through the third input-output port and/or transmitting the first SRS signal to the fourth antenna through the fourth input-output port.

In the radio frequency circuit, the first radio frequency switch device in the first transceiving module transmits the first SRS signal received by the first end to the first input port of the second transceiving module through the fourth end, and the second transceiving module transmits the first SRS signal received by the first input port to the third antenna through the third input/output port and/or transmits the first SRS signal to the fourth antenna through the fourth input/output port, so that the first SRS signal does not need to pass through the second radio frequency switch device of the first transceiving module when being transmitted to the third antenna or the fourth antenna, insertion loss in a route of transmitting the first SRS signal to the third antenna or the fourth antenna is reduced, the signal amplitude of the first SRS signal transmitted to the third antenna or the fourth antenna is improved, and the influence of a network side on the evaluation quality of an electronic equipment transmission channel is reduced.

The first SRS signal and the second SRS signal may be, for example, SRS signals in the N41 band in the following embodiments; the first transmission signal may be, for example, an N41 transmission signal in the subsequent embodiment; the first reception signal described above may be, for example, an N41 reception signal in the subsequent embodiment.

In one possible implementation, the first radio frequency switching device includes:

the first end of the first radio frequency switching device is connected with the fourth end of the first radio frequency switching device through a first switch and is also connected with the third end of the first radio frequency switching device through a second switch;

the second end of the first radio frequency switch device is connected with the third end of the first radio frequency switch device through a third switch;

the fourth end of the first radio frequency switch device is grounded through a fourth switch;

the third end of the first radio frequency switch device is grounded through a fifth switch;

the second end of the first radio frequency switch device is grounded through the sixth switch.

In one possible implementation manner, the method further includes:

the first register is respectively connected with the first controller and the control ends of the first switch to the sixth switch in the first radio frequency switch device; the first register may be, for example, a register Reg1 in the embodiment shown in subsequent fig. 6, and the first controller may be, for example, a controller 1 in the embodiment shown in fig. 6;

the first controller is configured to: when the first SRS signal is sent to the third antenna and/or the fourth antenna, first configuration information is sent to the first register, the first configuration information is used for controlling the first switch, the fifth switch and the sixth switch to be switched on, and the second switch, the third switch and the fourth switch to be switched off; when the first SRS signal or the first transmitting signal is transmitted to the first antenna and/or the second antenna, second configuration information is sent to the first register, the second configuration information is used for controlling the second switch, the fourth switch and the sixth switch to be switched on, and the first switch, the third switch and the fifth switch are switched off; when signals received by the first antenna and/or the second antenna are sent to the radio frequency transceiving chip, third configuration information is sent to the first register, the third configuration information is used for controlling the third switch and the fourth switch to be switched on, and the first switch, the second switch, the fifth switch and the sixth switch are switched off;

the first register is used for: controlling the first switch, the fifth switch and the sixth switch to be switched on and the second switch, the third switch and the fourth switch to be switched off according to the first configuration information; controlling the second switch, the fourth switch and the sixth switch to be switched on according to the second configuration information, and controlling the first switch, the third switch and the fifth switch to be switched off; and controlling the third switch and the fourth switch to be conducted according to the third configuration information, wherein the first switch, the second switch, the fifth switch and the sixth switch are controlled to be conducted according to the third configuration information.

In one possible implementation manner, the method further includes:

the second register is respectively connected with the second controller and the control ends of the first switch to the sixth switch in the first radio frequency switch device, and the third register is respectively connected with the second controller and the control ends of the first switch to the sixth switch in the first radio frequency switch device; the second register may be, for example, a register Reg1 in the embodiment shown in subsequent fig. 9, the third register may be, for example, a register Reg3 in the embodiment shown in subsequent fig. 9, and the second controller may be, for example, a controller 1 in the embodiment shown in subsequent fig. 9;

the second controller is for: when the first SRS signal is sent to the third antenna and/or the fourth antenna, first configuration information is sent to the second register, the first configuration information is used for controlling the first switch, the fifth switch and the sixth switch to be switched on, and the second switch, the third switch and the fourth switch to be switched off; when the first SRS signal or the first transmitting signal is transmitted to the first antenna and/or the second antenna, second configuration information is sent to the third register, the second configuration information is used for controlling the second switch, the fourth switch and the sixth switch to be switched on, and the first switch, the third switch and the fifth switch are switched off; when signals received by the first antenna and/or the second antenna are sent to the radio frequency transceiving chip, third configuration information is sent to a third register, the third configuration information is used for controlling a third switch and a fourth switch to be switched on, and the first switch, the second switch, a fifth switch and a sixth switch are switched off;

the second register is used for: controlling the first switch, the fifth switch and the sixth switch to be switched on and the second switch, the third switch and the fourth switch to be switched off according to the first configuration information;

the third register is used for: controlling the second switch, the fourth switch and the sixth switch to be switched on according to the second configuration information, and controlling the first switch, the third switch and the fifth switch to be switched off; and controlling the third switch and the fourth switch to be switched on according to the third configuration information, and switching off the first switch, the second switch, the fifth switch and the sixth switch.

In one possible implementation, the second controller is further configured to: the second register is set as antenna gating logic and the third register is set as radio frequency signal channel gating logic.

In a second aspect, an embodiment of the present application provides a radio frequency front end module, including: a first transceiving module and a second transceiving module, wherein,

a first input port and a first output port of the first transceiving module are used for connecting a radio frequency transceiving chip, a first input/output port is used for connecting a first antenna, and a second input/output port is used for connecting a second antenna;

the first radio frequency switching device is to: transmitting a first SRS signal received by the first end to a first input port of a second transceiving module through a fourth end, transmitting a second SRS signal received by the first end to a first end of a second radio frequency switch device through a third end, transmitting a first received signal received by the third end to a first output port of a first transceiving module through a second end, and transmitting a first transmitted signal received by the first end to a first end of the second radio frequency switch device through the third end;

the second transceiving module is used for: and transmitting the first SRS signal received by the first input port to the third antenna through the third input/output port and/or transmitting the first SRS signal received by the first input/output port to the fourth antenna through the fourth input/output port.

In the radio frequency front-end module, the first radio frequency switch device in the first transceiving module transmits the first SRS signal received by the first end to the first input port of the second transceiving module through the fourth end, and the second transceiving module transmits the first SRS signal received by the first input port to the third antenna through the third input/output port and/or transmits the first SRS signal to the fourth antenna through the fourth input/output port, so that the first SRS signal does not need to pass through the second radio frequency switch device of the first transceiving module when being transmitted to the third antenna or the fourth antenna, thereby reducing the insertion loss in the route of transmitting the first SRS signal to the third antenna or the fourth antenna, improving the signal amplitude of the first SRS signal transmitted to the third antenna and the fourth antenna by the radio frequency front-end module, and reducing the influence of the network side on the evaluation quality of an air interface transmission channel of the electronic equipment.

In one possible implementation manner, the method further includes:

the first register is respectively connected with the first controller and control ends of a first switch to a sixth switch in the first radio frequency switch device;

the first register is used for: receiving first configuration information sent by a first controller, controlling a first switch, a fifth switch and a sixth switch to be switched on according to the first configuration information, and switching a second switch, a third switch and a fourth switch off; receiving second configuration information sent by the first controller, controlling the second switch, the fourth switch and the sixth switch to be switched on according to the second configuration information, and switching off the first switch, the third switch and the fifth switch; receiving third configuration information sent by the first controller, and controlling the third switch and the fourth switch to be switched on according to the third configuration information, wherein the first switch, the second switch, the fifth switch and the sixth switch are connected; the first configuration information is sent when the first SRS signal is sent to the third antenna and/or the fourth antenna, the second configuration information is sent when the first SRS signal or the first transmission signal is transmitted to the first antenna and/or the second antenna, and the third configuration information is sent when the signal received by the first antenna and/or the second antenna is sent to the radio frequency transceiving chip.

In one possible implementation manner, the method further includes:

the second register is respectively connected with the second controller and the control ends of the first switch to the sixth switch in the first radio frequency switch device, and the third register is respectively connected with the second controller and the control ends of the first switch to the sixth switch in the first radio frequency switch device;

the second register is used for: receiving first configuration information sent by a second controller, controlling the first switch, the fifth switch and the sixth switch to be switched on according to the first configuration information, and switching the second switch, the third switch and the fourth switch off; the first configuration information is transmitted when the first SRS signal is transmitted to the third antenna and/or the fourth antenna;

the third register is used for: receiving second configuration information sent by a second controller, controlling a second switch, a fourth switch and a sixth switch to be switched on according to the second configuration information, and switching a first switch, a third switch and a fifth switch off; receiving third configuration information sent by a second controller, controlling a third switch and a fourth switch to be switched on according to the third configuration information, and switching off a first switch, a second switch, a fifth switch and a sixth switch; the second configuration information is sent when the first SRS signal or the first transmission signal is transmitted to the first antenna and/or the second antenna, and the third configuration information is sent when the signal received by the first antenna and/or the second antenna is sent to the radio frequency transceiving chip.

In one possible implementation manner, the logic of the second register in the second controller is defined as antenna gating logic, and the logic of the third register in the radio frequency signal channel gating logic in the second controller.

In a third aspect, an embodiment of the present application provides a first radio frequency switch device, which is applied to a radio frequency circuit in any one of the first aspect or a radio frequency front end module in any one of the second aspect, where the radio frequency switch device includes:

the fourth end of the first radio frequency switch device is grounded through a fifth switch;

In one possible implementation manner, the method further includes:

the first register is respectively connected with the first controller and the control ends of the first switch to the sixth switch in the first radio frequency switch device;

the first register is used for: receiving first configuration information sent by a first controller, controlling a first switch, a fifth switch and a sixth switch to be switched on according to the first configuration information, and controlling a second switch, a third switch and a fourth switch to be switched off; receiving second configuration information sent by the first controller, controlling the second switch, the fourth switch and the sixth switch to be switched on according to the second configuration information, and switching off the first switch, the third switch and the fifth switch; receiving third configuration information sent by the first controller, and controlling the third switch and the fourth switch to be switched on according to the third configuration information, wherein the first switch, the second switch, the fifth switch and the sixth switch are connected; the first configuration information is sent when the first SRS signal is sent to the third antenna and/or the fourth antenna, the second configuration information is sent when the first SRS signal or the first transmission signal is transmitted to the first antenna and/or the second antenna, and the third configuration information is sent when the signal received by the first antenna and/or the second antenna is sent to the radio frequency transceiving chip.

In the first radio frequency switch device, the first SRS signal received by the first end is output through the fourth end, so that the first SRS signal can be transmitted to the first input port of the second transceiving module, the first SRS signal received by the first end is transmitted to the first input port of the second transceiving module through the fourth end by the first radio frequency switch device in the first transceiving module, the first SRS signal received by the first input port is transmitted to the third antenna through the third input/output port and/or transmitted to the fourth antenna through the fourth input/output port by the second transceiving module, and therefore the first SRS signal does not need to pass through the second radio frequency switch device of the first transceiving module when being transmitted to the third antenna or the fourth antenna, so that the insertion loss in a route in which the first SRS signal is transmitted to the third antenna or the fourth antenna is reduced, the first SRS signal transmission rate of the radio frequency front end module to the third antenna and the fourth antenna is improved, and the influence of a network side on the evaluation quality of an air interface transmission channel of the electronic device is reduced.

In one possible implementation manner, the method further includes:

the second register is used for: receiving first configuration information sent by a second controller, controlling a first switch, a fifth switch and a sixth switch to be switched on according to the first configuration information, and switching a second switch, a third switch and a fourth switch off; the first configuration information is transmitted when the first SRS signal is transmitted to the third antenna and/or the fourth antenna;

the third register is used for: receiving second configuration information sent by a second controller, controlling a second switch, a fourth switch and a sixth switch to be switched on according to the second configuration information, and switching off a first switch, a third switch and a fifth switch; receiving third configuration information sent by a second controller, controlling a third switch and a fourth switch to be switched on according to the third configuration information, and switching off a first switch, a second switch, a fifth switch and a sixth switch; the second configuration information is sent when the first SRS signal or the first transmitting signal is transmitted to the first antenna and/or the second antenna, and the third configuration information is sent when the signal received by the first antenna and/or the second antenna is sent to the radio frequency transceiving chip.

In a fourth aspect, an embodiment of the present application provides an electronic device, including: the radio frequency circuit of any one of the first aspects, or the radio frequency front end module of any one of the second aspects, or the first radio frequency switching device of any one of the third aspects.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of an electronic device of the present application;

FIG. 2 is a schematic diagram of signals transmitted between an RFIC and an RFFE in an embodiment of the present application;

FIG. 3A is a schematic structural diagram of an RFFE in accordance with an embodiment of the present invention;

FIG. 3B is a schematic diagram of the operation of the RFFE shown in FIG. 3A;

FIG. 4A is a schematic diagram of another RFFE configuration in accordance with the embodiment of the present application;

FIG. 4B is a schematic diagram of the operation of the RFFE shown in FIG. 4A;

fig. 5 is a schematic structural diagram of a first rf switch device according to an embodiment of the present application;

FIG. 6 is a schematic diagram of an RF circuit according to an embodiment of the present application;

FIG. 7 is a schematic diagram of another exemplary RF circuit;

FIG. 8 is a diagram illustrating a switching relationship between 4 states of a first RF switch device according to an embodiment of the present application;

fig. 9 is a schematic diagram of another structure of the rf circuit according to the embodiment of the present application.

Detailed Description

The terminology used in the description of the embodiments section of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the present application.

The radio frequency switch device, the radio frequency front end module, the radio frequency circuit and the electronic equipment can improve the amplitude of the SRS signal output by the radio frequency front end module and improve the evaluation quality of a network side to an air interface transmission channel of the electronic equipment.

The electronic device in the embodiment of the application can be

Fig. 1 shows a schematic structural diagram of an electronic device, and as shown in fig. 1, the electronic device 100 may include: a processor 110, a memory 120, and a mobile communication module 130, wherein,

processor 110 may include one or more processing units, such as: the processor may include a baseband processor, an Application Processor (AP), a modem processor, a Graphics Processing Unit (GPU), an Image Signal Processor (ISP), a controller, a radio frequency codec, a Digital Signal Processor (DSP), a baseband processor, and/or a neural-Network Processing Unit (NPU), among others. The different processing units may be separate devices or may be integrated into one or more processors.

Memory 120 may be used to store computer-executable program code, which includes instructions. The memory 120 may include a program storage area and a data storage area. The storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required by at least one function, and the like. The storage data area may store data (such as audio data, phone book, etc.) created during use of the electronic device 100, and the like. Further, the memory 120 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, a universal flash memory (UFS), and the like. The processor 110 executes various functional applications and data processing of the electronic device 100 by executing instructions stored in the memory 120 and/or instructions stored in a memory provided in the processor.

The mobile communication module 130 may provide a solution including 2G/3G/4G/5G wireless communication applied to the electronic device 100.

The mobile communication module may include a radio frequency transceiver chip (RFIC) and a radio frequency front end module (RFFE). In a transmission/reception system, a radio frequency front end module performs operations such as combining, splitting, and path switching of transmission/reception signals of different frequency bands.

The radio frequency transceiver chip is connected with the baseband processor and is also connected with the radio frequency front end module, and the radio frequency front end module is connected with the antenna.

The antenna is used for transmitting and receiving electromagnetic wave signals. The number of antennas is greater than 1.

In fig. 1, when the rf transceiver chip receives a transmission signal output by the baseband processor, the transmission signal is subjected to frequency mixing, amplification, filtering, and other processing, and is output to a corresponding transmission link through a port corresponding to a frequency band of the transmission signal, and then is switched to a corresponding antenna for radiation through a switch module and other devices in the rf front-end module.

When receiving a received signal, the antenna enters a radio frequency front end module, the radio frequency front end module is switched to a corresponding receiving link through devices such as a switch module and the like, and the received signal is input into a radio frequency transceiver chip through the receiving link to be amplified, filtered, mixed and the like, and then is input into a baseband processor to be demodulated.

Meanwhile, the radio frequency transceiver chip outputs control signals to components such as a switch module and the like in the radio frequency front-end module through the control line, so that the switch module is controlled to switch different links.

The current 5G networking mode includes both NSA and SA modes. The NSA mode introduces a Dual Connection (DC) technique to support that the terminal device can simultaneously connect the 4G base station and the 5G base station. According to the difference of roles of the 4G base station and the 5G base station, the DC architecture in the NSA mode can be classified into three architectures, namely EUTRA-NR Dual Connection (EN-DC), NR-EUTRA Dual Connection (NE-DC), NG-RAN E-UTRA-NR Dual Connection (NG-RAN E-UTRA-NR Dual Connection, NGEN-DC).

In addition, when the Time Division Duplexing (TDD) frequency band of the NR system works, a Sounding Reference Signal (SRS) service needs to be performed, that is, the SRS is sent to the base station through multiple antennas, so as to help the base station to implement more accurate beamforming, and further implement better downlink experience of the terminal device.

In an embodiment provided by the present application, an EN-DC architecture in which the terminal device supports MB + N41 in the NSA mode is taken as an example. The Mid Band (MB) is a 4G band, which may be, for example, 1710-1980MHZ; n41 is a frequency band of 5G, and may be, for example, 2515MHz-2675MHz. Then, as shown in fig. 2, the signals transmitted between the RFIC and the RFFE may include: n41 transmission signal, N41 reception signal, SRS signal, MB transmission signal, MB reception signal, and the like.

The N41 transmit signal refers to a transmit signal with a frequency in an N41 frequency band, the N41 receive signal refers to a receive signal with a frequency in an N41 frequency band, the MB transmit signal refers to a transmit signal with a frequency in an MB frequency band, and the MB receive signal refers to a transmit signal with a frequency in an MB frequency band.

In an embodiment provided in this application, taking an example that a terminal device includes 4 antennas, a possible implementation structure of the RFFE in fig. 2 is illustrated, as shown in fig. 3A, the rf front-end module may include: a transceiver module 1 and a transceiver module 2, wherein,

the first input port 11 of the transceiver module 1 is connected to the N41 signal output port N41_ TX1 of the RFIC, and receives the N41 transmission signal or the N41 SRS signal output by the RFIC. The SRS signal of N41 refers to an SRS signal having a frequency in the N41 band.

The first output port 14 of the transceiver module 1 may be connected to an N41 signal input port N41_ RX1 of the RFIC, and may transmit a received signal of N41 to the RFIC;

the first input/output port 12 of the transceiving module 1 is connected with the antenna 1, the second input/output port 13 is connected with the antenna 2, and the second input/output port 13 is also connected with the first input port 21 of the transceiving module 2; the first input port 21 is used for receiving SRS signals.

The transceiver module 2 has a first input/output port 22 connected to the antenna 3 and a second input/output port 23 connected to the antenna 4.

The transceiver module 1 may include:

the receiving end of the first power amplifier PA1 is connected with a first input port 11 of the transceiving module 1, the output end is connected with an A end of a first radio frequency switch device K1, the 1 end of the first radio frequency switch device K1 is connected with a first end of a first transceiving filter F1, the second end of the first transceiving filter F1 is connected with an A end of a second radio frequency switch device K2, the 1 end of the second radio frequency switch device K2 is connected with a first input/output port 12 of the transceiving module 1, and the 2 end is connected with a second input/output port 13 of the transceiving module 1.

The transceiver module 2 may include:

the end B of the third radio frequency switch device K3 is connected with the first input port 21 of the transceiver module 2, the end 1 of the third radio frequency switch device K3 is connected with the first end of the second transceiver filter F2, the second end of the second transceiver filter F2 is connected with the end A of the fourth radio frequency switch device K4, the end 1 of the fourth radio frequency switch device K4 is connected with the first input/output port 22 of the transceiver module 2, and the end 2 is connected with the second input/output port 23 of the transceiver module 2.

It should be noted that the first power amplifier PA1, the second power amplifier PA2, the first transceiver filter F1, the second transceiver filter F2, and the like are optional devices, so as to improve the performance of the rf front-end module.

Optionally, the transceiver module 1 may further comprise a signal output port 15, wherein,

the signal output port 15 may be connected to the N41 signal input port N41_ RX2 of the RFIC, and transmit the received signal of N41 to the RFIC.

Optionally, the transceiver module 1 may further include:

the end B of the first radio frequency switch device K1 is connected with a first output port 14 of the transceiver module 1;

the terminal B of the second rf switch device K2 is connected to the signal output port 15 of the transceiver module 1 through the third transceiver filter F3.

Optionally, the transceiver module 2 may further include ports 24 to 30. Wherein the content of the first and second substances,

the second input port 24 of the transceiver module 2 may be connected to an N41 signal output port N41_ TX2 of the RFIC, and receive an N41 transmit signal output by the RFIC;

the third input port 25 of the transceiver module 2 may be connected to an MB signal output port MB _ TX1 of the RFIC, and receives an MB transmission signal output by the RFIC through the MB signal output port MB _ TX 1;

the fourth input port 26 of the transceiver module 2 may be connected to an MB signal output port MB _ TX2 of the RFIC, and receive an MB transmission signal output by the RFIC through the MB signal output port MB _ TX 2;

the first output port 27 of the transceiver module 2 may be connected to the MB signal input port MB _ RX1 of the RFIC, and transmits an MB received signal to the RFIC;

the second output port 28 of the transceiver module 2 may be connected to the MB signal input port MB _ RX2 of the RFIC, and transmit an MB received signal to the RFIC;

the third output port 27 of the transceiver module 2 may be connected to the N41 signal input port MB _ RX1 of the RFIC, and transmit the N41 receive signal to the RFIC;

the fourth output port 28 of the transceiver module 2 may be connected to the N41 signal input port MB _ RX2 of the RFIC to transmit the N41 receive signal to the RFIC.

Optionally, the transceiver module 2 may further include:

the receiving end of the second power amplifier PA2 is connected with the second input port 24 of the transceiving module 2, and the output end is connected with the A end of the third radio frequency switch device K3;

the fifth radio frequency switch device K5 is connected to the third input port 25, the first output port 27 of the transceiving module 2, and the B-port of the fourth radio frequency switch device K4, respectively;

the sixth radio frequency switch device K6 is respectively connected to the fourth input port 26, the second output port 28 of the transceiving module 2 and the C-terminal of the fourth radio frequency switch device K4;

the seventh radio frequency switch device K7 is connected to the third output port 29 of the transceiver module 2 and the D-port of the fourth radio frequency switch device K4, respectively;

the E terminal of the fourth rf switch device K4 is connected to the fourth output port 30 of the transceiver module 2.

The operation of the rf front-end module shown in fig. 3A will be described with reference to fig. 3B.

During the execution of the SRS signal service of N41, the SRS signal of N41 will be polled in four antennas. Wherein the content of the first and second substances,

the SRS signal of N41 is transmitted to the first radio frequency switch device K1 through the first power amplifier PA1 of the transceiving module 1, the first radio frequency switch device K1 gates the a-1 channel, the SRS signal of N41 is transmitted to the second radio frequency switch device K2 through the first transceiving filter F1, the second radio frequency switch device K2 gates the a-1 channel, the SRS signal of N41 is transmitted to the antenna 1, the a-2 channel is gated, the SRS signal of N41 is transmitted to the antenna 2 and the first input port 21 of the transceiving module 2;

the SRS signal of N41 is transmitted to the third rf switch device K3 through the first input port 21 of the transceiving module 2, the third rf switch device K3 gates the B-1 channel, the SRS signal of N41 is transmitted to the fourth rf switch device K4 through the second transceiving filter F2, the fourth rf switch device K4 gates the a-1 channel, the SRS signal of N41 is transmitted to the antenna 3, the a-2 channel is gated, and the SRS signal of N41 is transmitted to the antenna 4.

In the data service execution process of N41, if it is necessary to transmit the N41 transmission signal output by the RFIC to the antenna 1 and/or the antenna 2, the transmission signal of N41 is transmitted to the first radio frequency switching device K1 via the first power amplifier PA1 of the transceiving module 1, the radio frequency switching device K1 gates the a-1 channel, the transmission signal of N41 is transmitted to the second radio frequency switching device K2 via the first transceiving filter F1, the second radio frequency switching device K2 gates the a-1 channel, the transmission signal of N41 is transmitted to the antenna 1, the a-2 channel is gated, and the transmission signal of N41 is transmitted to the antenna 2 and the SRS signal input port 21 of the transceiving module 2.

Based on a principle similar to the SRS signal of N41, the N41 transmission signal output by the RFIC through the N41 signal output port N41_ TX1 may be transmitted to the second radio frequency switching device K2 via the first power amplifier PA1, the a-1 channel of the first radio frequency switching device K1, and the first transceiving filter F1, the second radio frequency switching device K2 gates the a-1 channel, so that the N41 transmission signal is transmitted to the antenna 1, and the second radio frequency switching device K2 gates the a-1 channel, so that the N41 transmission signal is transmitted to the antenna 2;

the N41 transmitting signal output by the RFIC through the N41 signal output port N41_ TX2 may be output to the fourth radio frequency switching device K4 through the second power amplifier PA2, the a-1 channel of the third radio frequency switching device K3, and the second transceiving filter F2 in the transceiving module 2, the fourth radio frequency switching device K4 gates the a-1 channel, so that the N41 transmitting signal is transmitted to the antenna 3, and the fourth radio frequency switching device K4 gates the a-2 channel, so that the N41 transmitting signal is transmitted to the antenna 4.

If it is necessary to transmit the N41 reception signal received by the antenna to the RFIC, then,

an N41 receiving signal received by the antenna 1 can be output to an N41 signal input port N41_ RX1 of the RFIC through an A-1 channel of the second radio frequency switching device K2, the first transceiving filter F1 and a B-1 channel of the first radio frequency switching device K1;

the N41 receiving signal received by the antenna 1 can be output to the N41 signal input port N41_ RX2 of the RFIC via the B-1 channel of the second radio frequency switching device K2 and the third transceiving filter F3;

the N41 receiving signal received by the antenna 2 can be output to an N41 signal input port N41_ RX1 of the RFIC through an A-2 channel of the second radio frequency switching device K2, the first transceiving filter F1 and a B-1 channel of the first radio frequency switching device K1;

the N41 received signal received by the antenna 2 may be output to the N41 signal input port N41_ RX2 of the RFIC via the B-2 channel of the second radio frequency switching device K2 and the third transceiving filter F3;

an N41 receiving signal received by the antenna 3 can be transmitted to an N41 signal input port N41_ RX3 of the RFIC through a B-1 channel of the fourth radio frequency switch device K4 and a B-1 channel of the fifth radio frequency switch device K5;

the N41 received signal received by the antenna 3 can be transmitted to the N41 signal input port N41_ RX3 of the RFIC via the E-1 channel of the fourth radio frequency switching device K4;

the N41 receiving signal received by the antenna 4 can be transmitted to an N41 signal input port N41_ RX3 of the RFIC through a B-2 channel of the fourth radio frequency switch device K4 and a B-1 channel of the fifth radio frequency switch device K5;

the N41 receive signal received by the antenna 3 may be transmitted to the N41 signal input port N41_ RX3 of the RFIC via the E-2 channel of the fourth radio frequency switching device K4;

during the execution of the MB data service, based on a principle similar to that of the N41 transmit signal, the MB transmit signal output by the RFIC through the MB signal output port MB _ TX1 may be output to the antenna 3 and/or the antenna 4 via the fifth radio frequency switch device K5 and the fourth radio frequency switch device K4 in the transceiver module 2; the MB transmission signal output by the RFIC through the MB signal output port MB _ TX2 may be output to the antenna 3 and/or the antenna 4 via the sixth radio frequency switching device K6 and the fourth radio frequency switching device K4 in the transceiver module 2.

Based on the principle similar to the N41 received signal, the MB received signal received by the antenna 3 and the antenna 4 may also be transmitted to the MB signal input port MB _ RX1 of the RFIC via the fourth and fifth radio frequency switch devices K4 and K5, or transmitted to the MB signal input port MB _ RX2 of the RFIC via the fourth and sixth radio frequency switch devices K4 and K6.

It should be noted that the transceiver module 1 and the transceiver module 2 may further include more or less devices than those shown in fig. 3A, and the embodiment of the present application is not limited as long as the transceiver module 1 includes the first rf switch device K1 and the second rf switch device K2.

In the radio frequency front end module shown in fig. 3A, to transmit the SRS signal of N41 to the antenna 3 or the antenna 4, the SRS signal of N41 needs to pass through the multistage radio frequency switch devices and the transceiver filters of the transceiver module 1 and the transceiver module 2, and then the PCB wiring between the modules is added, and the insertion loss of these devices and wiring can reduce the signal amplitude of the SRS signal of N41, resulting in that the signal amplitude of the SRS signal transmitted to the antenna 3 and the antenna 4 is very low, thereby affecting the evaluation quality of the base station on the null interface transmission channel of the terminal equipment. For example: the typical value of the insertion loss of the radio frequency switch device is about 2.5dB, the typical value of the insertion loss of the two-stage transceiver filter is about 2.6dB, and the typical values of the insertion loss of other devices and the insertion loss of the routing are about 2.0dB in total, so that when the SRS signal of N41 is transmitted to the antenna 3 and the antenna 4 through the transceiver module 1 and the transceiver module 2, the overall loss of the SRS signal of N41 is about 7.1dB. This loss can severely reduce the signal amplitude of the N41 SRS signal.

In another embodiment provided by the present application, as shown in fig. 4A, compared to the rf front-end module shown in fig. 3A, the differences mainly lie in:

the second antenna input/output port 13 of the transceiving module 1 is not required to be connected with the first input port 21 of the transceiving module 2, and is used for transmitting the SRS signal of N41; the 2 end of the first radio frequency switch device K1 is connected with the second output port 16 of the transceiver module 1, and the second output port 16 of the transceiver module 1 is connected with the first input port 21 of the transceiver module 2;

the first radio frequency switching device K1 is configured to: when the SRS of N41 needs to be transmitted to the antenna 3 and/or the antenna 4, the received SRS signal of N41 is output to the first input port 21 of the transceiver module 2 through the 2-port.

The operation principle of the rf front-end module shown in fig. 4A is described as follows with reference to fig. 4B:

the route of SRS signal transmission from N41 to antenna 1 and antenna 2 may refer to the description in fig. 3A and fig. 3B, which is not described herein.

To transmit the SRS signal of N41 to the antenna 3 or the antenna 4, the SRS signal of N41 is transmitted to the first input port 21 of the transceiver module 2 via the first power amplifier PA1 of the transceiver module 1 and the a-2 channel of the first radio frequency switch device K1; the SRS signal of N41 is transmitted to the fourth rf switch device K4 through the first input port 21 of the transceiving module 2, the B-1 channel of the third rf switch device K3, and the second transceiving filter F2, the fourth rf switch device K4 gates the B-1 channel, the SRS signal of N41 is transmitted to the antenna 3, the fourth rf switch device K4 gates the B-2 channel, and the SRS signal of N41 is transmitted to the antenna 4.

The principle of the circuit shown in fig. 4A for transmitting the N41 transmit signal, the N41 receive signal, the MB transmit signal, and the MB receive signal may refer to the corresponding description in fig. 3A and fig. 3B, and is not repeated here.

Under the structure, to transmit the SRS signal of N41 to the antenna 3 or the antenna 4, the SRS signal of N41 does not need to pass through the first transceiving filter F1 and the second radio frequency switch device K2 of the transceiving module 1, so that, compared with the structure shown in fig. 3A, insertion loss in a route for transmitting the SRS signal of N41 to the antenna 3 or the antenna 4 is reduced, signal amplitude of the SRS signal of N41 transmitted to the antenna 3 or the antenna 4 is increased, and influence of a base station on estimation quality of an air interface transmission channel of a terminal device is reduced. Continuing with the example in FIG. 3A: by simplifying the first transceiving filter F1 and the second rf switch device K2 in the route of transmitting the N41 SRS signal to the antenna 3 and/or the antenna 4, the insertion loss in the route can be reduced by about 1.9dB, so that the overall loss of the N41 SRS signal is reduced to about 5.2dB, and thus the signal amplitude of the N41 SRS signal transmitted to the antenna 3 and/or the antenna 4 can be increased relative to the rf front-end module structure shown in fig. 3A.

During the SRS signal service execution process of N41, the first radio frequency switch device K1 shown in fig. 4A is configured to: when the SRS signal service of the N41 is transmitted to the antenna 1 and/or the antenna 2, the A-1 channel is gated; when the SRS signal service of the N41 is transmitted to the antenna 3 and/or the antenna 4, the A-2 channel is gated;

in the data transmission service execution process of N41, when the first radio frequency switching device K1 shown in fig. 4A is used to transmit the N41 transmission signal to the first transceiving filter F1 at the subsequent stage, the a-1 channel is gated; the B-1 channel is gated when the N41 receive signal is transmitted to the RFIC.

In order to implement the above functions, an embodiment of the present application provides an implementation structure of a first radio frequency switch device K1, and as shown in fig. 5, the first radio frequency switch device K1 may include:

the pin A of the first radio frequency switch device K1 is connected with the pin 2 of the first radio frequency switch device K1 through a first switch SE1 and is also connected with the pin 1 of the first radio frequency switch device K1 through a second switch SE 2;

a pin B of the first radio frequency switch device K1 is connected with a pin 1 of the first radio frequency switch device K1 through a third switch SE 3;

pin 2 of the first radio frequency switching device K1 is grounded through a fourth switch SH 1;

pin 1 of the first radio frequency switching device K1 is grounded through a fifth switch SH 2;

pin B of the first radio frequency switching device K1 is grounded through a sixth switch SH 3.

At this time, as shown in fig. 6, the rf front-end module may further include:

the register Reg1 is used for receiving configuration information at a receiving end of the register Reg1, and an output end of the register Reg1 is correspondingly connected with control pins C1-C6 of the first radio-frequency switching device K1 respectively, so that the register Reg1 can respectively output control signals to the control pins C1-C6 of the first radio-frequency switching device K1 according to the configuration information to control on or off of each switch in the first radio-frequency switching device K1;

alternatively, the receiving end of the register Reg1 may be connected to the controller 1, and the controller 1 may be a processor or an RFIC, and the controller 1 outputs a control signal to the register Reg 1.

As shown in table 1 below, register Reg1 may include the following control logic:

TABLE 1

In another embodiment provided by the present application, as shown in fig. 7, the rf front-end module may further include: the output end of the register Reg1 is correspondingly connected with the ends A1-A6 of the controller 2, the receiving end of the register Reg2 is connected with the controller 1, the output end of the register Reg2 is correspondingly connected with the ends B1-B6 of the controller 2, and the ends D1-D6 of the controller 2 are correspondingly connected with the ends C1-C6 of the first radio frequency switch device K1. The register Reg1 may receive a first configuration value sent by the controller 1, and output a corresponding first control signal based on the first configuration value, and the register Reg2 may receive a second configuration value sent by the controller 1, and output a corresponding second control signal based on the second configuration value, at this time, the controller 2 may be configured to control the first rf switching device using the first control signal or the second control signal.

It should be noted that, in fig. 7, the controller 2 is taken as an example that is independent from the first rf switch device, and in other embodiments provided in the present application, the controller 2 may also be integrated in the first rf switch device.

In the embodiment shown in fig. 7, the control priority of the register Reg2 may be higher than the control priority of the register Reg1, and at this time, the register Reg1 and the register Reg2 may include control logic as shown in table 2 below:

TABLE 2

Since the control priority of the register Reg2 is higher than that of the register Reg1, in the embodiment of the present application, the register Reg2 is configured to be in the state S0, that is, when the configuration value is 0X00 or other, the configuration value of the register Reg1 is valid, otherwise, the configuration value of the register Reg2 is valid. For example, if the register Reg1 is configured to the configuration value 0X02 corresponding to the state S2, and the register Reg2 is configured to the configuration value 0X01 corresponding to the state S1, the on/off of each switch in the first rf switch device is controlled based on the configuration value 0X01 of the register Reg2, and then, if the register Reg2 is configured to the configuration value 0X00 corresponding to the state S0, the register Reg1 is enabled, and the on/off of each switch in the first rf switch device is controlled based on the configuration value of the register Reg1 (that is, the configuration value 0X02 of the state S2). Based on this, the controller 2 in the circuit shown in fig. 7 can be used to: and when the second control signal output by the register Reg2 is judged to be not the control signal corresponding to the state S0, the second control signal output by the register Reg2 is transmitted to the C1-C6 ends of the first radio frequency switch device, and when the second control signal output by the register Reg2 is judged to be the control signal corresponding to the state S0, the first control signal output by the register Reg1 is transmitted to the C1-C6 ends of the first radio frequency switch device.

For example, as shown in fig. 8, taking an example that the register Reg2 can control the first rf switch device to be in the state S1, configuration value setting logic when the register 1 and the register 2 control the first rf switch device to be switched between the states S0 to S1 is shown, and details are not repeated here.

In some embodiments, the polling function of the SRS signal of N41 requires configuring the first radio frequency switching device in software code as a logical definition of antenna gating logic, e.g., cross-SW, while the transmit-receive signal splitting function of N41 requires configuring the first radio frequency switching device in software code as a logical definition of radio frequency signal channel gating, e.g., ASM, while in some embodiments, the same physical device cannot have multiple logical definitions, i.e., the first radio frequency switching device cannot be configured with both a logical definition of antenna gating logic and a logical definition of radio frequency signal channel gating.

In order to meet the above requirement on software, in another embodiment provided in the present application, as shown in fig. 9, as compared to the radio frequency circuit shown in fig. 6, a register Reg3 may be additionally provided in the radio frequency front end module for the first radio frequency switching device, a receiving end of the register Reg3 is used for receiving configuration information, and an output end of the register Reg3 is respectively connected to the control pins C1 to C6 of the first radio frequency switching device K1 correspondingly, so that the register Reg2 may also output a corresponding control signal according to the configuration information to control on or off of each switch in the first radio frequency switching device K1.

In the embodiment of the present application, the register Reg1 may be set as a logic definition of the radio frequency signal channel gating in the controller 1, and the register Reg3 may be set as a logic definition of the antenna gating logic; at this time, as shown in table 3 below, the register Reg1 is used to control the first rf switch device to complete the transmit/receive signal separation function of N41, and the register Reg3 is used to control the first rf switch device to complete the round-trip function of the SRS signal of N41.

TABLE 3

In table 3, the state S2 and the state S3 related to the function of separating the transmission and reception signals of N41 among the 4 states of the first rf switch device are controlled by the register Reg1, and the state S0 and the state S1 related to the function of transmitting the SRS signal of N41 among the 4 states are controlled by the register Reg 3.

Based on the above description, the controller 1 may specifically be configured to: setting a register Reg1 as a logic definition of radio frequency signal channel gating in advance, setting a register Reg3 as a logic definition of antenna gating logic, transmitting a configuration value 0X02 corresponding to a state S2 to the register Reg1 when N41 transmission signals need to be transmitted, transmitting a configuration value 0X03 corresponding to a state S3 to the register Reg1 when N41 receiving signals need to be received, transmitting a configuration value 0X02 corresponding to a state S2 to the register Reg1 when an SRS signal of N41 needs to be transmitted to an antenna 1 and/or an antenna 2, and transmitting a configuration value 0X01 corresponding to a state S1 to the register Reg3 when the SRS signal of N41 needs to be transmitted to the antenna 3 and/or the antenna 4; and when the first radio frequency switching device K1 is not required to work, transmitting the configuration value 0X00 corresponding to the state S0 or other configuration values to the register Reg1 or Reg 3.

It should be noted that, the configuration values of the registers corresponding to the states S0 to S3 in the above embodiments are only examples, and may also be implemented by other configuration values, and the embodiments of the present application are not limited.

It should be noted that the MB frequency band and the N41 frequency band are merely examples, and the circuit in the embodiment of the present application may also be extended to transmit/receive signals in other frequency bands and SRS signals in other frequency bands, which is not limited in the embodiment of the present application.

An embodiment of the present application further provides an electronic device, including the radio frequency front end module or the first radio frequency switch device of any of the foregoing embodiments.

In the embodiments of the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, and indicates that three relationships may exist, for example, a and/or B, and may indicate that a exists alone, a and B exist simultaneously, and B exists alone. Wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" and the like, refer to any combination of these items, including any combination of singular or plural items. For example, at least one of a, b, and c may represent: a, b, c, a and b, a and c, b and c or a and b and c, wherein a, b and c can be single or multiple.

Those of ordinary skill in the art will appreciate that the various elements and algorithm steps described in connection with the embodiments disclosed herein can be implemented as electronic hardware, computer software, or combinations of electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, any function, if implemented in the form of a software functional unit and sold or used as a separate product, may be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above description is only an embodiment of the present application, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present disclosure should be covered within the protection scope of the present application. The protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A radio frequency circuit comprising a radio frequency front end module, the radio frequency front end module comprising: a first transceiving module and a second transceiving module, wherein,

the first radio frequency switching device is to: transmitting a first SRS signal received by a first end to a first input port of the second transceiving module through a fourth end, transmitting a second SRS signal received by the first end to a first end of the second rf switch device through a third end, transmitting a first received signal received by the third end to a first output port of the first transceiving module through the second end, and transmitting a first transmitted signal received by the first end to a first end of the second rf switch device through the third end;

the second radio frequency switching device is to: outputting the second SRS signal or the first transmitting signal received by the first end to the first antenna through the second end and/or outputting the second SRS signal or the first transmitting signal to the second antenna through the third end; transmitting a first receiving signal received by the second terminal and/or the third terminal to the third terminal of the first radio frequency switch device through the first terminal;

2. The radio frequency circuit according to claim 1, wherein the first radio frequency switching device comprises:

3. The radio frequency circuit of claim 2, further comprising:

the first register is respectively connected with a first controller and control ends of first to sixth switches in the first radio frequency switch device;

the first controller is to: when the first SRS signal is sent to the third antenna and/or the fourth antenna, first configuration information is sent to the first register, the first configuration information is used for controlling the first switch, the fifth switch and the sixth switch to be switched on, and the second switch, the third switch and the fourth switch to be switched off; when the first SRS signal or the first transmitting signal is transmitted to the first antenna and/or the second antenna, second configuration information is sent to the first register, the second configuration information is used for controlling the second switch, the fourth switch and the sixth switch to be switched on, and the first switch, the third switch and the fifth switch to be switched off; when signals received by the first antenna and/or the second antenna are sent to the radio frequency transceiving chip, third configuration information is sent to the first register, the third configuration information is used for controlling the third switch and the fourth switch to be switched on, and the first switch, the second switch, the fifth switch and the sixth switch are switched off;

the first register is to: controlling the first switch, the fifth switch and the sixth switch to be switched on and the second switch, the third switch and the fourth switch to be switched off according to the first configuration information; controlling the second switch, the fourth switch and the sixth switch to be switched on according to the second configuration information, and controlling the first switch, the third switch and the fifth switch to be switched off; and controlling the third switch and the fourth switch to be conducted according to the third configuration information, wherein the first switch, the second switch, the fifth switch and the sixth switch are controlled to be conducted according to the third configuration information.

4. The radio frequency circuit of claim 2, further comprising:

the second register is respectively connected with a second controller and control ends of first to sixth switches in the first radio frequency switch device, and the third register is respectively connected with the second controller and control ends of the first to sixth switches in the first radio frequency switch device;

the second controller is to: when the first SRS signal is sent to the third antenna and/or the fourth antenna, first configuration information is sent to the second register, the first configuration information is used for controlling the first switch, the fifth switch and the sixth switch to be switched on, and the second switch, the third switch and the fourth switch to be switched off; when the first SRS signal or the first transmitting signal is transmitted to the first antenna and/or the second antenna, second configuration information is sent to a third register, the second configuration information is used for controlling the second switch, the fourth switch and the sixth switch to be switched on, and the first switch, the third switch and the fifth switch to be switched off; when signals received by the first antenna and/or the second antenna are sent to the radio frequency transceiving chip, third configuration information is sent to a third register, the third configuration information is used for controlling a third switch and a fourth switch to be switched on, and the first switch, the second switch, a fifth switch and a sixth switch are switched off;

the second register is to: controlling the first switch, the fifth switch and the sixth switch to be switched on and the second switch, the third switch and the fourth switch to be switched off according to the first configuration information;

the third register is to: controlling a second switch, a fourth switch and a sixth switch to be switched on according to the second configuration information, and switching off a first switch, a third switch and a fifth switch; and controlling the third switch and the fourth switch to be switched on according to the third configuration information, and switching off the first switch, the second switch, the fifth switch and the sixth switch.

5. The radio frequency circuit of claim 4, wherein the second controller is further configured to: and setting the second register as antenna gating logic and setting the third register as radio frequency signal channel gating logic.

6. A radio frequency front end module, comprising: a first transceiving module and a second transceiving module, wherein,

7. The RF front-end module of claim 6, wherein the first RF switching device comprises:

8. The rf front-end module of claim 7, further comprising:

the first register is to: receiving first configuration information sent by a first controller, controlling a first switch, a fifth switch and a sixth switch to be switched on according to the first configuration information, and controlling a second switch, a third switch and a fourth switch to be switched off; receiving second configuration information sent by a first controller, controlling a second switch, a fourth switch and a sixth switch to be switched on according to the second configuration information, and switching off a first switch, a third switch and a fifth switch; receiving third configuration information sent by a first controller, and controlling a third switch and a fourth switch to be switched on according to the third configuration information, wherein the first switch, the second switch, a fifth switch and a sixth switch are connected; the first configuration information is sent when the first SRS signal is sent to the third antenna and/or the fourth antenna, the second configuration information is sent when the first SRS signal or the first transmission signal is transmitted to the first antenna and/or the second antenna, and the third configuration information is sent when the signal received by the first antenna and/or the second antenna is sent to the radio frequency transceiving chip.

9. The rf front-end module of claim 7, further comprising:

the second register is to: receiving first configuration information sent by a second controller, controlling a first switch, a fifth switch and a sixth switch to be switched on according to the first configuration information, and switching a second switch, a third switch and a fourth switch off; the first configuration information is transmitted when the first SRS signal is transmitted to the third antenna and/or the fourth antenna;

the third register is to: receiving second configuration information sent by a second controller, controlling a second switch, a fourth switch and a sixth switch to be switched on according to the second configuration information, and switching a first switch, a third switch and a fifth switch off; receiving third configuration information sent by a second controller, controlling a third switch and a fourth switch to be switched on according to the third configuration information, and switching off a first switch, a second switch, a fifth switch and a sixth switch; the second configuration information is sent when the first SRS signal or the first transmitting signal is transmitted to the first antenna and/or the second antenna, and the third configuration information is sent when the signal received by the first antenna and/or the second antenna is sent to the radio frequency transceiving chip.

10. The rf front-end module of claim 9, wherein the logic of the second register in the second controller is defined as antenna gating logic, and the third register in the second controller is defined as rf signal path gating logic.

11. A first rf switch device, applied to the rf circuit of any one of claims 1 to 5 or the rf front-end module of any one of claims 6 to 10, the first rf switch device comprising:

the first end of the first radio frequency switch device is connected with the fourth end of the first radio frequency switch device through a first switch and is also connected with the third end of the first radio frequency switch device through a second switch;

12. The first radio frequency switching device of claim 11, further comprising:

13. The first radio frequency switching device of claim 11, further comprising:

the second register is to: receiving first configuration information sent by a second controller, controlling a first switch, a fifth switch and a sixth switch to be switched on according to the first configuration information, and switching a second switch, a third switch and a fourth switch off; the first configuration information is transmitted when a first SRS signal is transmitted to a third antenna and/or a fourth antenna;

the third register is to: receiving second configuration information sent by a second controller, controlling a second switch, a fourth switch and a sixth switch to be switched on according to the second configuration information, and switching off a first switch, a third switch and a fifth switch; receiving third configuration information sent by a second controller, controlling a third switch and a fourth switch to be switched on according to the third configuration information, and switching off a first switch, a second switch, a fifth switch and a sixth switch; the second configuration information is sent when the first SRS signal or the first transmission signal is transmitted to the first antenna and/or the second antenna, and the third configuration information is sent when the signal received by the first antenna and/or the second antenna is sent to the radio frequency transceiver chip.

14. The first radio frequency switching device of claim 13, wherein logic of the second register in the second controller is defined as antenna gating logic, and a third register in the second controller gates logic for a radio frequency signal path.

15. An electronic device, comprising: the radio frequency circuit of any one of claims 1 to 5, or the radio frequency front end module of any one of claims 6 to 10, or the first radio frequency switching device of any one of claims 11 to 14.