WO2020259296A1

WO2020259296A1 - Radio frequency circuit and terminal

Info

Publication number: WO2020259296A1
Application number: PCT/CN2020/095532
Authority: WO
Inventors: 孔根升
Original assignee: 维沃移动通信有限公司
Priority date: 2019-06-26
Filing date: 2020-06-11
Publication date: 2020-12-30
Also published as: CN110311696A

Abstract

Disclosed are a radio frequency circuit and a terminal. The radio frequency circuit comprises: a radio frequency transceiver; a transceiving module and at least one receiving module that are connected with the radio frequency transceiver; at least two antennas; a first switching module that is separately connected with the transceiving module and the at least two antennas, wherein the transceiving module is conducted with any one antenna by means of the first switching module; and at least one second switching module, wherein one second switching module is separately connected with one receiving module and one antenna.

Description

RF circuit and terminal

Cross references to related applications

This application claims the priority of Chinese Patent Application No. 201910560441.X filed in China on June 26, 2019, the entire content of which is incorporated herein by reference.

Technical field

The present disclosure relates to the technical field of electronic products, and in particular to a radio frequency circuit and a terminal.

Background technique

In 5G mobile communication, the terminal adds a sounding reference signal (Sounding reference signal, SRS) function to the hardware design. SRS is mainly used to obtain uplink channel state information and downlink channel state information. The SRS antenna switching of the 5G terminal system needs to be completed in the terminal hardware design, which increases the complexity of the terminal radio frequency front-end system.

There are three SRS antenna switching methods: 1T2R (the terminal supports one transmission, and this transmission can be switched on two antennas), 2T4R (the terminal supports two transmissions, and the two transmissions can be switched on two antennas respectively), 1T4R (The terminal supports one-way transmission, which can be switched on four antennas). For example, the 1T4R switching method is generally through a three-pole, three-throw (3P3T) switch or a four-to-four-throw (4P4T) switch to support one transmission, and this transmission can be switched on four antennas. Since the insertion loss of the 3P3T switch and the 4P4T switch is relatively large, it may affect the receiving sensitivity of the terminal, and even increase the loss of the terminal.

Summary of the invention

The embodiments of the present disclosure provide a radio frequency circuit and a terminal to solve the problem of large insertion loss of switches in the radio frequency circuit.

In order to solve the above technical problems, the present disclosure is implemented as follows:

In the first aspect, some embodiments of the present disclosure provide a radio frequency circuit, including:

Radio frequency transceiver;

A transceiver module and at least one receiving module connected to the radio frequency transceiver;

At least two antennas;

The first switch module is respectively connected to the transceiver module and the at least two antennas, and the transceiver module is connected to any one of the antennas through the first switch module;

At least one second switch module, and one said second switch module is respectively connected to one said receiving module and one said antenna.

In the second aspect, some embodiments of the present disclosure also provide a terminal, including the above-mentioned radio frequency circuit.

In this way, in the above solution of the present disclosure, the transceiver module is connected to at least two antennas through the first switch module; through the first switch module, the transceiver module can be connected to any antenna; and a second switch module The group is connected to an antenna, and the second switch module controls the conduction or disconnection between the antenna corresponding to the second switch module and the receiving module to realize the transmission and/or reception of radio frequency signals, and Compared with radio frequency circuits using 3P3T (three-pole three-throw switch) and 4P4T (four-pole four-throw switch), the insertion loss and cost are reduced, and the system sensitivity is also improved.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present disclosure more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments of the present disclosure. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor.

FIG. 1 shows one of the schematic diagrams of the radio frequency circuit of some embodiments of the present disclosure;

Figure 2 shows the second schematic diagram of the radio frequency circuit of some embodiments of the present disclosure;

FIG. 3 shows the third schematic diagram of the radio frequency circuit of some embodiments of the present disclosure;

FIG. 4 shows the fourth schematic diagram of the radio frequency circuit of some embodiments of the present disclosure; and

FIG. 5 shows a block diagram of the hardware structure of a terminal according to some embodiments of the present disclosure.

Detailed ways

Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure, and to fully convey the scope of the present disclosure to those skilled in the art.

As shown in FIG. 1, some embodiments of the present disclosure provide a radio frequency circuit, including: a radio frequency transceiver 11, a transceiver module 12 connected to the radio frequency transceiver 11, at least one receiving module 13, and at least two antennas 14. , A first switch module 15 and at least one second switch module 16.

Wherein, the first switch module 15 is respectively connected to the transceiver module 12 and the at least two antennas 14, and the transceiver module 12 is connected to any one of the antennas through the first switch module 15 14 is turned on; a second switch module 16 is connected to a receiving module 13 and an antenna 14 respectively.

The radio frequency circuit in this embodiment can be applied to the Time Division Duplexing (TDD) standard, such as: N41/N77/N78/N79 frequency bands under the TDD standard of 5G New Radio (NR); or Applied to Frequency Division Duplexing (FDD) system.

In the above solution, the transceiver module 12 is connected to at least two antennas through the first switch module 15 (the connection mentioned here is not that the transceiver module 12 and the at least two antennas are all connected), and the first switch module 15. The transceiver module 12 can be connected to any antenna 14, and the transceiver module 12 is connected to only one antenna 14; and a second switch module 16 is connected to one antenna 14, through the second switch module 16 , To control the conduction or disconnection between the antenna 14 corresponding to the second switch module 16 and the receiving module 13 to realize the transmission and/or reception of radio frequency signals. Compared with radio frequency circuits using 3P3T and 4P4T, The insertion loss and cost are reduced, and the system sensitivity is also improved.

Figures 1 and 2 show an example of a 1T2R radio frequency circuit. Wherein, the radio frequency circuit includes: a radio frequency transceiver 11, a transceiver module 12 and a receiving module 13 connected to the radio frequency transceiver 11, two antennas 14, a first switch module 15, and a second switch module 16. And modem 17.

The first switch module 15 is connected to the transceiver module 12 and the two antennas 14 respectively, and the transceiver module 12 is connected to any one of the antennas 14 through the first switch module 15 The second switch module 16 is connected between the receiving module 13 and one of the antennas 14; the modem 17 is connected to the radio frequency transceiver 11.

Specifically, the two antennas 14 are a first antenna 141 and a second antenna 142.

Optionally, the first switch module is a single pole double throw switch; the first switch module 15 includes a first connection terminal, a second connection terminal, and a third connection terminal. The first connection end is connected to the transceiver module 12; the second connection end is connected to the first antenna 141; the third connection end is connected to the second antenna 142.

The first switch module 15 has a first conduction state and a second conduction state. When the first switch module 15 is in the first conduction state, the first connection terminal and the second connection terminal are conducted. That is, the transceiver module 12 conducts between the first switch module 15 and the first antenna 141; when the first switch module 15 is in the second conduction state, the first connection terminal and the third connection terminal are conducted. That is, the transceiver module 12 is connected to the second antenna 142 through the first switch module 15.

The second switch module 16 is a single pole single throw switch, wherein one end of the single pole single throw switch is connected to the receiving module 13 and the other end is connected to the second antenna 142. The second switch module 16 has an on state and an off state. When the second switch module 16 is in the on state, the receiving module 13 and the second antenna 142 are conducted; when the second switch module When 16 is in the off state, the receiving module 13 and the second antenna 142 are disconnected.

The modem 17 is used to demodulate the signal received by the radio frequency transceiver 11 and send the modulated signal carrying useful information to the radio frequency transceiver 11. At the same time, the control of the radio frequency transceiver 11, the transceiver module 12, the receiving module 13, the first switch module 15 and the second switch module 16 can also be realized.

The radio frequency transceiver 11 is used for outputting an uplink transmission (TX) signal to the transceiver module 12 and/or the receiving module 13 and receiving the downlink reception (RX) signal of the transceiver module 12 and/or the receiving module 13.

Optionally, the transceiver module 12 is a radio frequency transmit and receive (TX/RX) module, which is used to amplify the radio frequency signal sent by the radio frequency transceiver 11 and send it to the first antenna 141 or the second antenna 142 , And the signal received by the first antenna 141 or the second antenna 142 is primary amplified and sent to the radio frequency transceiver 11 for processing.

Optionally, the second switch module 16 is a single pole single throw switch, wherein one end of the single pole single throw switch is connected to the receiving module 13 and the other end is connected to the second antenna 142. The second switch module 16 has an on state and an off state. When the second switch module 16 is in the on state, the receiving module 13 and the second antenna 142 are conducted; when the second switch module When 16 is in the off state, the receiving module 13 and the second antenna 142 are disconnected. In this way, through the second switch module 13, the receiving module 13 can be in a state of conducting with the second antenna 142 or a state of being disconnected.

Optionally, the receiving module 13 is an independent radio frequency receiving (RX) module for primary amplifying the received signal from the second antenna 142 and then sending it to the radio frequency transceiver 11 for processing.

Specifically, when the radio frequency circuit works in the transmitting mode, the first switch module is in one of the first conductive state and the second conductive state, that is, the transceiver module 12 passes through the first switch module 15 It is connected to the first antenna 141, or the transceiver module 12 is connected to the second antenna 142 through the first switch module 15, so that the transceiver module 12 can transmit through any one of the two antennas. Radio frequency signal; the second switch module is in the off state, that is, the receiving module 13 is disconnected from the second antenna 142.

When the radio frequency circuit is operating in the receiving mode, the first switch module 15 is in the first conductive state, that is, the transceiver module 12 is conductively connected between the first switch module 15 and the first antenna 141. The two switch modules 16 are in a conducting state, that is, the receiving module 13 is conducted between the second switch module 16 and the second antenna 142 to ensure the reception of the two antennas, thereby ensuring the effective transmission of radio frequency signals.

Optionally, the single-pole double-throw (SP2T) and single-pole single-throw (SPST) switches in some embodiments of the present disclosure can be integrated into a switch chip (IC) to improve the integration and layout of the RF front-end system. Board area.

In the above solution, the transceiver module 12 is connected to the first antenna 141 and the second antenna 142 through the first switch module 15; through the first switch module 15, the transceiver module 12 can be connected to the first antenna 141 or the second antenna 142 is turned on; and the second switch module 16 is only connected to the second antenna 142, and the second switch module 16 controls the conduction or disconnection between the receiving module 13 and the second antenna 142 to achieve radio frequency Signal transmission and/or reception, and the insertion loss of the single-pole four-throw switch at 4GHz is about 0.45dB, and the insertion loss of the single-pole single-throw switch at 4GHz is less than 0.4dB. Compared with the radio frequency circuit using DPDT, the insertion loss can be reduced. Loss and cost, thereby reducing the loss of the terminal, are of great value to the sensitivity of the system and the optimization of radio frequency transmission power consumption.

As shown in FIG. 3 and FIG. 4, some embodiments of the present disclosure provide an example of a 1T4R radio frequency circuit. The radio frequency circuit includes: a radio frequency transceiver 31, a transceiver module 32 and at least one receiving module 33 connected to the radio frequency transceiver 31, at least two antennas 34, a first switch module 35, and at least one second Switch module 36 and modem 37.

Wherein, the first switch module 35 is respectively connected to the transceiver module 32 and the at least two antennas 34, and the transceiver module 32 is connected to any one of the antennas through the first switch module 35 34 is turned on; one of the second switch modules 36 is connected to one of the receiving module 33 and one of the antenna 34; the modem 37 is connected to the radio frequency transceiver 31.

The at least two antennas 34 include: a first antenna 341, a second antenna 342, a third antenna 343, and a fourth antenna 344.

Wherein, the first switch module 35 is respectively connected to the transceiver module 32, the first antenna 341, the second antenna 342, the third antenna 343, and the fourth antenna 344, and The transceiver module 32 is connected to any one of the first antenna 341, the second antenna 342, the third antenna 343, and the fourth antenna 344 through the first switch module 35.

Optionally, the first switch module 35 is a single-pole four-throw switch. Specifically, the first switch module 35 includes: a first connection end, a second connection end, a third connection end, a fourth connection end, and a fifth connection end;

The first antenna 341 is connected to the first connection end, the second antenna 342 is connected to the second connection end, the third antenna 343 is connected to the third connection end, and the fourth antenna 344 is connected to the fourth connection terminal, and the transceiver module 32 is connected to the fifth connection terminal;

Wherein, the fifth connection terminal is connected to any one of the first connection terminal, the second connection terminal, the third connection terminal, and the fourth connection terminal, so that the first switch module 35 has a first conductive state: the fifth connection terminal is connected to the first connection terminal, that is, the transceiver module 32 is connected to the first antenna 341 through the first switch module 35; the second conductive state : The fifth connection terminal is connected to the second connection terminal, that is, the transceiver module 32 is connected to the second antenna 342 through the first switch module 35; the third conductive state: the fifth connection terminal is connected to the The third connection terminal is conductive, that is, the transceiver module 32 is connected to the third antenna 343 through the first switch module 35; the fourth conductive state: the fifth connection terminal is conductive to the fourth connection terminal That is, the transceiver module 32 is connected to the fourth antenna 344 through the first switch module 35.

Specifically, the at least one receiving module 33 includes: a first sub receiving module 331, a second sub receiving module 332, and a third sub receiving module 333;

The second switch module 36 includes: a first sub switch module 361, a second sub switch module 362, and a third sub switch module 363;

Wherein, the first sub-receiving module 331 is connected to the second antenna 342 through the first sub-switch module 361;

The second sub-receiving module 332 is connected to the third antenna 343 through the second sub-switch module 362;

The third sub-receiving module 333 is connected to the fourth antenna 344 through the third sub-switch module 363.

Optionally, the second switch module 36 is a single pole single throw switch, that is, the first sub switch module 361, the second sub switch module 362, and the third sub switch module 363 are single pole single throw switches, respectively. In this way, through the first sub-switch module 361, the first sub-receiving module 331 can be in a state of being connected to the second antenna 342 or disconnected; through the second sub-switch module 362, the The second sub-receiving module 332 can be connected to the third antenna 343 or disconnected; through the third sub-switch module 363, the third sub-receiving module 333 can be connected to the fourth antenna 344. The connected state, or the disconnected state.

The modem 37 is used to demodulate the signal received by the radio frequency transceiver 31 and send the modulated signal carrying useful information to the radio frequency transceiver 31. At the same time, it can also realize the radio frequency transceiver 31, the transceiver module 32, the first sub-receiving module 331, the second sub-receiving module 332, the third sub-receiving module 333, the first switch module 35, and the first sub switch. Control of the module 361, the second sub-switch module 362, and the third sub-switch module 363.

The radio frequency transceiver 31 is used to output an uplink transmit (TX) signal to at least one of the transceiver module 32, the first sub-receiving module 331, the second sub-receiving module 332, and the third sub-receiving module 333 to receive and transmit At least one of the module 32, the first sub-receiving module 331, the second sub-receiving module 332, and the third sub-receiving module 333 receives downlink reception (RX) signals.

Optionally, the transceiver module 32 is a radio frequency transmitting and receiving (TX/RX) module, which is used to amplify the radio frequency signal sent by the radio frequency transceiver 31 and send it to the first antenna 341 and the second antenna 342 , One of the third antenna 343 and the fourth antenna 344, and the signal received from one of the first antenna 341, the second antenna 342, the third antenna 343, and the fourth antenna 344 is primary amplified and sent to the radio frequency The transceiver 31 processes.

Optionally, the first sub-receiving module 331 is a radio frequency receiving (RX) module, which is used to amplify the received signal from the second antenna 342 and send it to the radio frequency transceiver 31 for processing; The receiving module 332 is a radio frequency receiving (RX) module, which is used to amplify the received signal from the third antenna 343 and send it to the radio frequency transceiver 31 for processing; the third sub-receiving module 333 is the radio frequency receiver The (RX) module is used for primary amplifying the received signal of the fourth antenna 344 and sending it to the radio frequency transceiver 31 for processing.

Specifically, when the radio frequency circuit is operating in the transmitting mode, the first sub-switch module 361, the second sub-switch module 362, and the third sub-switch module 363 are all in the off state, that is, the first sub-switch module The receiving module 331 is disconnected from the first antenna 341, the second sub receiving module 332 is disconnected from the second antenna 342, and the third sub receiving module 333 is disconnected from the third antenna 343; the transceiver module 32 is connected to one of the first antenna 341, the second antenna 342, the third antenna 343, and the fourth antenna 344 through the first switch module 35, that is, the first switch module 35 is in one of the first conduction state, the second conduction state, the third conduction state, and the fourth conduction state, so that the transceiver module 32 can transmit radio frequency signals through any one of the four antennas.

When the radio frequency circuit works in the receiving mode, the first sub-switch module 361, the second sub-switch module 362, and the third sub-switch module 363 are all in a closed state, that is, the first sub-receiving module 331 Through the conduction between the first sub-switch module 361 and the second antenna 342, the second sub-receiving module 332 conducts between the second sub-switch module 362 and the third antenna 343, and the third sub-receiving module 333 Through the conduction between the third sub-switch module 363 and the fourth antenna 344; and the transceiver module 32 conducts with the first antenna 341 through the first switch module 35, that is, the first switch mode The group 35 is in the first conduction state to ensure the reception of the four antennas, thereby ensuring the effective transmission of radio frequency signals.

Optionally, the single-pole four-throw switch (SP4T) and the single-pole single-throw (SPST) switch in some embodiments of the present disclosure can be integrated into a switch chip (IC) to improve the integration and layout of the RF front-end system. Board area.

In the above solution, the transceiver module 32 is connected to the four antennas 34 through the first switch module 35; through the first switch module 35, the transceiver module 32 can be connected to any one of the four antennas 34; and one The second switch module 36 is connected to a receiving module 33 and an antenna 34, and the second switch module 36 controls the connection between the antenna 34 and the receiving module 33 corresponding to the second switch module 36 Turn on or off to achieve the transmission and/or reception of radio frequency signals, and the insertion loss of the single-pole four-throw switch at 4GHz is about 0.45dB, and the insertion loss of the single-pole single-throw switch at 4GHz is less than 0.4dB. For 3P3T and 4P4T radio frequency circuits, the insertion loss will be optimized by 0.35-1.2dB, thereby reducing the loss of the terminal, which is of great value to system sensitivity and optimizing radio frequency transmission power consumption.

As shown in Figure 5, some embodiments of the present disclosure also provide a terminal. The terminal 500 includes but is not limited to: a radio frequency unit 501, a network module 502, an audio output unit 503, an input unit 504, a sensor 505, a display unit 506, and a user Input unit 507, interface unit 508, memory 509, processor 510, power supply 511 and other components. Those skilled in the art can understand that the terminal structure shown in FIG. 5 does not constitute a limitation on the terminal, and the terminal may include more or less components than shown in the figure, or combine certain components, or arrange different components. In some embodiments of the present disclosure, terminals include, but are not limited to, mobile phones, tablet computers, notebook computers, palmtop computers, vehicle-mounted terminals, wearable devices, and pedometers.

Wherein, the radio frequency unit 501 includes: a radio frequency transceiver, a transceiver module and at least one receiving module connected to the radio frequency transceiver, at least two antennas, a first switch module, at least one second switch module, and a modem .

Wherein, the first switch module is respectively connected with the transceiver module and the at least two antennas, and the transceiver module is connected to any one of the antennas through the first switch module; The second switch module is connected to the receiving module and the antenna respectively; the modem is connected to the radio frequency transceiver.

In the radio frequency unit 501 in the terminal of some embodiments of the present disclosure, the transceiver module is connected to at least two antennas through a first switch module; through the first switch module, the transceiver module can be connected to any antenna; and A second switch module is connected to an antenna, and the second switch module controls the conduction or disconnection between the antenna corresponding to the second switch module and the receiving module to realize the transmission and/or radio frequency signal. Or receiving, and compared with the use of 3P3T and 4P4T radio frequency circuit, reducing the insertion loss and cost, but also beneficial to improve the system sensitivity.

It should be understood that, in some embodiments of the present disclosure, the radio frequency unit 501 can be used for receiving and sending signals in the process of sending and receiving information or talking. Specifically, the downlink data from the base station is received and processed by the processor 510; , Send the uplink data to the base station. Generally, the radio frequency unit 501 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 501 can also communicate with the network and other devices through a wireless communication system.

The terminal provides users with wireless broadband Internet access through the network module 502, such as helping users to send and receive emails, browse web pages, and access streaming media.

The audio output unit 503 can convert the audio data received by the radio frequency unit 501 or the network module 502 or stored in the memory 509 into audio signals and output them as sounds. Moreover, the audio output unit 503 may also provide audio output related to a specific function performed by the terminal 500 (for example, call signal reception sound, message reception sound, etc.). The audio output unit 503 includes a speaker, a buzzer, a receiver, and the like.

The input unit 504 is used to receive audio or video signals. The input unit 504 may include a graphics processing unit (GPU) 5041 and a microphone 5042. The graphics processor 5041 is configured to monitor images of still pictures or videos obtained by an image capture device (such as a camera) in the video capture mode or the image capture mode. Data is processed. The processed image frame may be displayed on the display unit 506. The image frame processed by the graphics processor 5041 may be stored in the memory 509 (or other storage medium) or sent via the radio frequency unit 501 or the network module 502. The microphone 5042 can receive sound, and can process such sound into audio data. The processed audio data can be converted into a format that can be sent to a mobile communication base station via the radio frequency unit 501 for output in the case of a telephone call mode.

The terminal 500 also includes at least one sensor 505, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor. The ambient light sensor can adjust the brightness of the display panel 5061 according to the brightness of the ambient light. The proximity sensor can close the display panel 5061 and/or when the terminal 500 is moved to the ear. Or backlight. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three-axis), and can detect the magnitude and direction of gravity when stationary, and can be used to identify terminal posture (such as horizontal and vertical screen switching, related games, Magnetometer attitude calibration), vibration recognition related functions (such as pedometer, percussion), etc.; sensor 505 can also include fingerprint sensor, pressure sensor, iris sensor, molecular sensor, gyroscope, barometer, hygrometer, thermometer, infrared Sensors, etc., will not be repeated here.

The display unit 506 is used to display information input by the user or information provided to the user. The display unit 506 may include a display panel 5061, and the display panel 5061 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), etc.

The user input unit 507 may be used to receive inputted numeric or character information, and generate key signal input related to user settings and function control of the terminal. Specifically, the user input unit 507 includes a touch panel 5071 and other input devices 5072. The touch panel 5071, also called a touch screen, can collect user touch operations on or near it (for example, the user uses any suitable objects or accessories such as fingers, stylus, etc.) on the touch panel 5071 or near the touch panel 5071. operating). The touch panel 5071 may include two parts: a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch position, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it To the processor 510, the command sent by the processor 510 is received and executed. In addition, the touch panel 5071 can be implemented in multiple types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 5071, the user input unit 507 may also include other input devices 5072. Specifically, other input devices 5072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackball, mouse, and joystick, which will not be repeated here.

Further, the touch panel 5071 can be overlaid on the display panel 5061. When the touch panel 5071 detects a touch operation on or near it, it is transmitted to the processor 510 to determine the type of the touch event. The type of event provides corresponding visual output on the display panel 5061. Although in FIG. 5, the touch panel 5071 and the display panel 5061 are used as two independent components to implement the input and output functions of the terminal, in some embodiments, the touch panel 5071 and the display panel 5061 can be integrated. Realize the input and output functions of the terminal, which are not limited here.

The interface unit 508 is an interface for connecting an external device with the terminal 500. For example, the external device may include a wired or wireless headset port, an external power source (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input/output (I/O) port, video I/O port, headphone port, etc. The interface unit 508 may be used to receive input (for example, data information, power, etc.) from an external device and transmit the received input to one or more elements in the terminal 500 or may be used to communicate between the terminal 500 and the external device. Transfer data between.

The memory 509 can be used to store software programs and various data. The memory 509 may mainly include a program storage area and a data storage area. The program storage area may store an operating system, an application program required by at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data (such as audio data, phone book, etc.) created by the use of mobile phones. In addition, the memory 509 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, or other volatile solid-state storage devices.

The processor 510 is the control center of the terminal. It uses various interfaces and lines to connect the various parts of the entire terminal. It executes by running or executing software programs and/or modules stored in the memory 509, and calling data stored in the memory 509. Various functions of the terminal and processing data, so as to monitor the terminal as a whole. The processor 510 may include one or more processing units; optionally, the processor 510 may integrate an application processor and a modem processor, where the application processor mainly processes the operating system, user interface and application programs, etc. The adjustment processor mainly deals with wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 510.

The terminal 500 may also include a power source 511 (such as a battery) for supplying power to various components. Optionally, the power source 511 may be logically connected to the processor 510 through a power management system, so as to manage charging, discharging, and power consumption management through the power management system. And other functions.

In addition, the terminal 500 includes some functional modules not shown, which will not be repeated here.

The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referred to each other.

Although some optional embodiments of the embodiments of the present disclosure have been described, those skilled in the art can make additional changes and modifications to these embodiments once they learn the basic creative concept. Therefore, the appended claims are intended to be interpreted as including alternative embodiments and all changes and modifications falling within the scope of some embodiments of the present disclosure.

Finally, it should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these entities Or there is any such actual relationship or sequence between operations. Moreover, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or terminal device that includes a series of elements includes not only those elements, but also those that are not explicitly listed. Other elements listed, or also include elements inherent to this process, method, article, or terminal device. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other same elements in the process, method, article or terminal device that includes the element.

The above are optional implementations of the present disclosure. It should be pointed out that for those of ordinary skill in the art, several improvements and modifications can be made without departing from the principles described in this disclosure, and these improvements and modifications are also Within the protection scope of this disclosure.

Claims

A radio frequency circuit, including:

Radio frequency transceiver;

A transceiver module and at least one receiving module connected to the radio frequency transceiver;

At least two antennas;

The first switch module is respectively connected to the transceiver module and the at least two antennas, and the transceiver module is connected to any one of the antennas through the first switch module;

At least one second switch module, and one said second switch module is respectively connected to one said receiving module and one said antenna.
The radio frequency circuit according to claim 1, wherein the at least two antennas comprise: a first antenna, a second antenna, a third antenna, and a fourth antenna;

Wherein, the first switch module is connected to the transceiver module and the first antenna, the second antenna, the third antenna, and the fourth antenna, respectively, and the transceiver module passes through the The first switch module is connected to any one of the first antenna, the second antenna, the third antenna, and the fourth antenna.
3. The radio frequency circuit according to claim 2, wherein the first switch module comprises: a first connection terminal, a second connection terminal, a third connection terminal, a fourth connection terminal and a fifth connection terminal;

The first antenna is connected to the first connection end, the second antenna is connected to the second connection end, the third antenna is connected to the third connection end, and the fourth antenna is connected to the The fourth connection terminal, the transceiver module is connected to the fifth connection terminal;

Wherein, the fifth connecting end is electrically connected to any one of the first connecting end, the second connecting end, the third connecting end, and the fourth connecting end.
The radio frequency circuit according to claim 2 or 3, wherein the first switch module is a single pole four throw switch.
The radio frequency circuit according to claim 2, wherein the at least one receiving module comprises: a first sub-receiving module, a second sub-receiving module, and a third sub-receiving module;

The at least one second switch module includes: a first sub switch module, a second sub switch module, and a third sub switch module;

Wherein, the first sub-receiving module is connected to the second antenna through the first sub-switch module;

The second sub-receiving module is connected to the third antenna through the second sub-switch module;

The third sub-receiving module is connected to the fourth antenna through the third sub-switch module.
The radio frequency circuit according to claim 1 or 5, wherein the second switch module is a single-pole single-throw switch.
5. The radio frequency circuit according to claim 5, wherein, when the radio frequency circuit is operating in the transmitting mode, the first sub switch module, the second sub switch module and the third sub switch module are all in an off state , The transceiver module is connected to one of the first antenna, the second antenna, the third antenna, and the fourth antenna through the first switch module.
5. The radio frequency circuit according to claim 5, wherein when the radio frequency circuit works in the receiving mode, the first sub-switch module, the second sub-switch module, and the third sub-switch module are all in a closed state, The transceiver module is connected to the first antenna through the first switch module.
A terminal, comprising the radio frequency circuit according to any one of claims 1 to 8.