CN108599780A - Multi-channel selector switch and wireless communication device - Google Patents

Abstract

The embodiment of the application discloses multiple selector switch and wireless communication equipment, include: the antenna system comprises 4 antennas, the multi-path selection switch comprises 6T ports and 4P ports, the 6T ports comprise 4 first T ports, the 4 first T ports are ports which are fully connected with the 4P ports, and the first T ports are ports which at least support a transmitting function; the multi-path selection switch is used for connecting the radio frequency circuit and the antenna system to realize the preset function of the wireless communication equipment, and the preset function is the function of supporting the alternate transmission of the SRS through the sounding reference signal between the transmitting antennas and transmitting the SRS with 4 ports. The embodiment of the application supports the function that the wireless communication equipment in the 5GNR transmits the SRS with 4 ports alternately between the transmitting antennas through the SRS detection.

Description

Multiplexer switches and wireless communication devices

technical field

The present application relates to the technical field of mobile terminals, in particular to a multi-way selection switch and a wireless communication device.

Background technique

With the popularization and application of wireless communication devices such as smart phones, more and more applications can be supported by smart phones, and the functions are becoming more and more powerful. supplies. Wireless communication equipment in the fourth-generation 4G mobile communication system generally adopts a single-antenna or dual-antenna radio frequency system architecture. Currently, the fifth-generation 5G mobile communication system new air interface NR system proposes a radio frequency system architecture that supports 4 antennas.

Contents of the invention

The embodiment of the present application provides a multiplexer switch and a wireless communication device, in order to support the function of the wireless communication device in 5G NR to send 4-port SRS by rotating the sounding reference signal SRS between the transmitting antennas.

In the first aspect, the embodiment of the present application provides a multi-way selection switch, which is applied to a wireless communication device, the wireless communication device includes an antenna system and a radio frequency circuit, the antenna system includes 4 antennas, and the multi-way selection switch includes 6 T ports and 4 P ports, the 6 T ports include 4 first T ports, the 4 first T ports are ports fully connected with the 4 P ports, and the first T ports The port is a port that supports sending and receiving functions;

The multiplex switch is used to connect the radio frequency circuit and the antenna system to realize the preset function of the wireless communication device, and the preset function is to support the transmission of the sounding reference signal SRS among the transmitting antennas in rotation, and transmit 4-port SRS functionality.

In a second aspect, a radio frequency system is provided, and the radio frequency system includes the multiplex switch as described in the first aspect.

In the third aspect, the embodiment of the present application provides a wireless communication device, including an antenna system, a radio frequency circuit, and the multiplex switch as described in the first aspect or the radio frequency system as described in the second aspect;

The multiplex switch is used to connect the radio frequency circuit and the antenna system to realize the preset function of the wireless communication device, and the preset function is to support the transmission of the sounding reference signal SRS among the transmitting antennas in rotation, and transmit 4-port SRS functionality.

It can be seen that in the embodiment of the present application, the wireless communication device includes an antenna system, a radio frequency circuit, and a multiplexing switch, the antenna system specifically includes 4 antennas, and the multiplexing switch includes 6 T ports and 4 P ports, and The multiplex switch is connected to the radio frequency circuit and the antenna system to realize the support of the wireless communication device to transmit the sounding reference signal SRS among the transmitting antennas in rotation.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a schematic structural diagram of a wireless communication device provided by an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a 4P6T switch provided by an embodiment of the present application.

FIG. 3 is a schematic diagram of a 4P6T port provided by an embodiment of the present application.

Figure 4a is a schematic diagram of two independent circuit modules of a 4P 6T port provided by the embodiment of the present application;

Fig. 4b is a schematic diagram of three independent circuit modules of a 4P 6T port provided by the embodiment of the present application;

Fig. 4c is a schematic diagram of four independent circuit modules of another 4P 6T port provided by the embodiment of the present application;

Fig. 4d is a schematic diagram of six independent circuit modules of another 4P 6T port provided by the embodiment of the present application.

Fig. 5 is a schematic structural diagram of a radio frequency system provided by an embodiment of the present application.

Fig. 6 is an example structure of an antenna system of a wireless communication device provided in an embodiment of the present application.

Fig. 7 is a schematic diagram of a wireless charging receiver that multiplexes antennas of a wireless communication device according to an embodiment of the present application.

FIG. 8 is a schematic structural diagram of a circular array antenna composed of four antennas provided by an embodiment of the present application.

For the convenience of description, in the above figures, Nx represents one frequency, and Ny represents another frequency.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

The terms "first", "second" and the like in the specification and claims of the present application and the above drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps or units inherent in these processes, methods, products or devices.

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

The full English name of the P port in the application embodiment is Port (polarization) port, which is used for the title of the port connected to the antenna in the antenna switch in this application, and the full English name of the T port is Throw (throwing, throwing), which is used in the antenna switch in this application. The name of the port connected to the RF module, such as a 4P4T switch.

The concepts such as single connection and full connection between the T port and the P port in the multi-way selection switch described in the embodiment of the present application refer to the state that the T port is connected to the P port through the switch tube, and the T port can be controlled by the switch tube. The path between the P port and the conduction. The function of supporting SRS to be transmitted between transmitting antennas in rotation, and the function of transmitting 4-port SRS refers to the process in which the wireless communication device interacts with the base station through a rotation training mechanism to determine the quality of the uplink channel corresponding to each antenna.

The wireless communication devices involved in the embodiments of the present application may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems with wireless communication functions, as well as various forms of user equipment ( User Equipment, UE), mobile station (Mobile Station, MS), terminal device (terminal device) and so on. Of course, in other applications, the foregoing wireless communication device may also be a network-side device, such as a base station, an access point, and other network-side devices. For convenience of description, the devices mentioned above are collectively referred to as wireless communication devices.

At present, the SRS switching4 antenna transmission function of mobile phones is a mandatory option of China Mobile Communications Group CMCC in the "China Mobile 5G Scale Test Technology White Paper_Terminal", and it is optional in the 3rd Generation Partnership Project 3GPP. Its main purpose is In order for the base station to measure the uplink signals of the 4 antennas of the mobile phone, and then confirm the quality and parameters of the 4-way signals, according to the signal reciprocity, the beamforming of the 4-way signals is performed on the downlink to maximize the multiple-input multiple-output Massive MIMO antenna array, and finally the downlink 4x4 MIMO for the best data transmission performance.

In order to meet the transmission requirements of 4-antenna SRS switching switching, the radio frequency architecture with the simplified 4P6T antenna switch as the core proposed in the embodiment of this application, compared with the existing 3P3T/DPDT/multi-channel small switch switching scheme, can reduce the number of series switches in each path Quantity (integrate all or part of the switches into the main switch of 4P6T), thereby reducing link loss and optimizing the overall transmission and reception performance of the terminal. The following describes the embodiments of the present application in detail. Please refer to FIG. 1. FIG. 1 is a schematic structural diagram of a multi-way selection switch 10 provided by an embodiment of the present application. The multi-way selection switch is applied to a wireless communication device 100, and the wireless communication device 100 includes an antenna system 20 and a radio frequency circuit. 30. The antenna system 20 includes 4 antennas, the multiplexer 10 includes 6 T ports and 4 P ports, the 6 T ports are fully connected to the 4 P ports, and the 6 T ports Including 4 first T ports, the 4 first T ports are ports fully connected to the 4 P ports, and the first T ports are ports supporting the transceiver function; the 6 T ports also include: 2 second T ports, the second T ports are ports that only support the receiving function.

The multiplex switch 10 is used to connect the radio frequency circuit 30 and the antenna system 20 to realize the preset function of the wireless communication device 100, and the preset function is to support transmission between the transmitting antennas through the sounding reference signal SRS Rotation, the function of sending 4-port SRS.

Wherein, the wireless communication device may specifically be a 5G NR mobile phone terminal or other 5G NR terminal equipment, such as Customer Premise Equipment (CPE) or a portable broadband wireless device (MobileWifi, MIFI).

Wherein, since the 4 first T ports are fully connected to the 4 P ports, the second T port is a port connected to a P port, for the convenience of description, the number of fully connected to the 4 P ports is defined here is m, and this part will be described in detail below.

For example, assuming n=6, m=4, the multi-way switch is composed of field effect transistors, if each of the 4 first T ports is fully connected to 4 P ports, 2 The second T port is single-connected to one P port, and the example structure diagram of the multi-way switch is shown in Figure 2, and the number of field effect transistors of the multi-way switch is 4+4*4*3+2*3 +6=64.

In addition, the wireless communication device further includes a radio frequency transceiver, which is connected to the radio frequency circuit, and forms a radio frequency system of the wireless communication device together with the radio frequency circuit, the multi-way switch and the antenna system.

It can be seen that in this example, the wireless communication device includes an antenna system, a radio frequency circuit, and a multiplexing switch, the antenna system specifically includes 4 antennas, the multiplexing switch includes 6 T ports and 4 P ports, and the multiplexing The switch connects the radio frequency circuit and the antenna system to realize that the wireless communication device supports the transmission of the sounding reference signal SRS between the transmitting antennas in rotation.

For the 4 first T ports, as shown in Figure 3, in another possible example, the 4 first T ports can be 4 ports (indicated by double arrows) supporting the transceiver function, and the 2 second T ports The ports can be 2 ports that only support the receiving function.

Referring to Figure 4a, Figure 4a is a radio frequency circuit physically composed of two independent circuit modules;

The signal receiving ports of the two independent circuit modules are connected one-to-one with the four first T ports, and the signal receiving ports of the two independent circuit modules are used for one-to-one connection with the two second T ports.

Optionally, the two independent circuit modules are two first independent circuit modules 401; the first independent circuit module includes two signal transceiving ports and one signal receiving port;

The first independent circuit module includes 2 sets of integrated processing circuits for transmitting and receiving signals and 1 set of integrated processing circuits for receiving signals, and the 2 sets of integrated processing circuits for transmitting and receiving signals work in different frequency bands;

Each group of receiving and receiving signal integrated processing circuits includes: a first power amplifier PA, a first filter, a first selection switch and a first low noise amplifier LNA, the common end of the first selection switch is connected to one end of the first filter The other end of the first filter is connected to one end of the power coupler, the other end of the power coupler is connected to the signal transceiver port, and the two selection ends of the first selection switch are respectively connected to the the first PA and the first LNA;

Each group of receiving signal integrated processing circuits includes: 2-way receiving signal processing circuits, the working frequency bands of the 2-way receiving signal processing circuits are different, and each group of receiving signal integrated processing circuits includes: 2 second low-noise amplifiers LNA, 2 a second filter and a second selection switch, the input end of the second LNA is connected to one end of the second filter, and the two selection ends of the second selection switch are respectively connected to the other ends of the two second filters, The output end of the second LNA outputs a receiving signal, and the common end of the second selection switch is connected to the signal receiving port.

Referring to Figure 4b, Figure 4b provides another radio frequency circuit physically composed of 3 independent circuit modules; the 3 independent circuit modules include: 2 second independent circuit modules 402 and 1 third independent circuit module 403;

The signal receiving and transmitting ports of the two second independent circuit modules are connected one-to-one with the four first T ports, and the signal receiving port of the one third independent circuit module is used for one-to-one connection with the two second T ports connect.

Optionally, the second independent circuit module includes: 2 sets of integrated processing circuits for transmitting and receiving signals, and the 2 sets of integrated processing circuits for transmitting and receiving signals work in different frequency bands, and each set of integrated processing circuits for transmitting and receiving signals includes: a first power amplifier PA, The first filter, the first selection switch and the first low noise amplifier LNA, the common end of the first selection switch is connected to one end of the first filter, and the other end of the first filter is connected to the power One end of the coupler is connected, the other end of the power coupler is connected to the signal transceiving port, and the two selection ends of the first selection switch are respectively connected to the first PA and the first LNA;

The third independent circuit module includes: 2 groups of receiving signal integrated processing circuits, each group of receiving signal integrated processing circuits includes: 2 receiving signal processing circuits, the working frequency bands of the 2 receiving signal processing circuits are different, and each group The receiving signal integrated processing circuit includes: 2 second low-noise amplifiers LNA, 2 second filters and a second selection switch, the input end of the second LNA is connected to one end of the second filter, and the second selection switch The two selection terminals of the second LNA are respectively connected to the other terminals of the two second filters, the output terminal of the second LNA outputs a receiving signal, and the common terminal of the second selection switch is connected to the signal receiving port.

Referring to Figure 4c, Figure 4c provides another radio frequency circuit physically composed of 4 independent circuit modules; the 4 independent circuit modules include: 2 fourth independent circuit modules 404 and 2 fifth independent circuit modules 405;

The signal receiving ports of the two fourth independent circuit modules are connected one-to-one with the four first T ports, and the signal receiving ports of the two fifth independent circuit modules are used for one-to-one connection with the two second T ports connect.

Optionally, the fourth independent circuit module includes: 2 sets of integrated processing circuits for sending and receiving signals, the two sets of integrated processing circuits for sending and receiving signals work in different frequency bands, and each set of integrated processing circuits for sending and receiving signals includes: a first power amplifier PA, The first filter, the first selection switch and the first low noise amplifier LNA, the common end of the first selection switch is connected to one end of the first filter, and the other end of the first filter is connected to the power One end of the coupler is connected, the other end of the power coupler is connected to the signal transceiving port, and the two selection ends of the first selection switch are respectively connected to the first PA and the first LNA;

The fifth independent circuit module includes: 1 group of integrated processing circuits for receiving signals, each group of integrated processing circuits for receiving signals includes: 2 receiving signal processing circuits, the working frequency bands of the 2 receiving signal processing circuits are different, and each group The receiving signal integrated processing circuit includes: 2 second low-noise amplifiers LNA, 2 second filters and a second selection switch, the input end of the second LNA is connected to one end of the second filter, and the second selection switch The two selection terminals of the second LNA are respectively connected to the other terminals of the two second filters, the output terminal of the second LNA outputs a receiving signal, and the common terminal of the second selection switch is connected to the signal receiving port.

Referring to Figure 4d, Figure 4d provides that the next radio frequency circuit is physically composed of 6 independent circuit modules; the 6 independent circuit modules include: 4 sixth independent circuit modules 406 and 2 seventh independent circuit modules 407;

The signal receiving ports of the two fourth independent circuit modules are connected one-to-one with the four first T ports, and the signal receiving ports of the two fifth independent circuit modules are used for one-to-one connection with the two second T ports connect.

The sixth independent circuit module includes: 1 group of integrated processing circuits for sending and receiving signals, each group of integrated processing circuits for sending and receiving signals includes: a first power amplifier PA, a first filter, a first selection switch and a first low-noise amplifier LNA, the first A common end of a selection switch is connected to one end of the first filter, the other end of the first filter is connected to one end of the power coupler, and the other end of the power coupler is connected to the signal transceiving port , the two selection terminals of the first selection switch are respectively connected to the first PA and the first LNA;

The seventh independent circuit module includes: 1 group of receiving signal integrated processing circuits, each group of receiving signal integrated processing circuits includes: 2 receiving signal processing circuits, the working frequency bands of the 2 receiving signal processing circuits are different, and each group The receiving signal integrated processing circuit includes: 2 second low-noise amplifiers LNA, 2 second filters and a second selection switch, the input end of the second LNA is connected to one end of the second filter, and the second selection switch The two selection terminals of the second LNA are respectively connected to the other terminals of the two second filters, the output terminal of the second LNA outputs a receiving signal, and the common terminal of the second selection switch is connected to the signal receiving port.

Referring to FIG. 5, FIG. 5 provides a radio frequency system, which includes: a radio frequency transceiver, a radio frequency circuit, a 4P6T multiplex switch and 4 antennas.

In a possible example, the four antennas include a first antenna, a second antenna, a third antenna, and a fourth antenna, and the first antenna, the second antenna, the third antenna, and the fourth antenna are all Antennas that support the 5G NR band.

In a possible example, the four antennas include a first antenna, a second antenna, a third antenna, and a fourth antenna, and the first antenna and the fourth antenna are antennas supporting LTE frequency bands and 5G NR frequency bands , the second antenna and the third antenna are antennas that only support the 5G NR frequency band.

Among them, the first and fourth antennas are used to support DL 4x4 MIMO of individual frequency bands on LTE terminals. Its two receiving antennas are shared with 5G NR antennas.

In a possible example, the antenna system further includes a first combiner and a second combiner, wherein the first port of the first combiner is used to connect to the first antenna, and the first combiner The second port of a combiner is used to connect the first receiving path in the LTE 4x4 MIMO of the wireless communication device, and the third port of the first combiner is used to connect the corresponding P port; the first port of the second combiner is used to connect the fourth antenna, and the second port of the second combiner is used to connect the second antenna in the LTE 4x4 MIMO of the wireless communication device. In the receiving path, the third port of the second combiner is used to connect to the corresponding P port in the multiplexer.

Wherein, the LTE 4*4MIMO is a downlink LTE receiving circuit, which may be defined as a third receiving path. Because the current LTE already has 2 channels of reception. When supporting LTE 4x4 MIMO, the third and fourth receiving channels will be added.

Among them, m is only when transmitting, according to the actual situation of the 4 NR antennas, one with better performance will be reserved for the PRX in the circuit for standby use. The m port in the switch has the function of sending and receiving, that is, it can be used for TX and PRX functions, and the antenna can be switched arbitrarily, so there is no need to restrict the port of the shared antenna here. Therefore, any P port can be used here. If the m port only has the transmitting function, it means that all the RXs are connected to the P port respectively, and the performance of the 4 NR antennas will be compared, and the one with the best performance will be left for the PRX to stand by. The antenna with the best performance can be this antenna here, or not, then the port restriction will appear, you need to connect the P corresponding to the T port of the PRX, and you will not be able to connect the P corresponding to the T port of the PRX.

In a possible example, as shown in FIG. 6, the antenna system further includes a first single-pole double-throw SPDT switch and a second SPDT switch, wherein the first port of the first SPDT switch is used to connect the first An antenna, the second port of the first SPDT switch is used to connect to the first receiving path in the LTE 4x4MIMO of the wireless communication device, and the third port of the first SPDT switch is used to connect to the multiplexing switch The corresponding P port in the second SPDT switch; the first port of the second SPDT switch is used to connect the fourth antenna, and the second port of the second SPDT switch is used to connect the second antenna in the LTE 4x4MIMO of the wireless communication device In the receiving path, the third port of the second SPDT switch is used to connect to the corresponding P port of the multiplex switch.

In addition, as shown in Figure 7, the four antennas in the antenna system described in the embodiment of the present application can also be multiplexed by the wireless charging receiver of the electronic device. Specifically, the wireless charging receiver includes a receiving antenna, a receiving The control circuit, the receiving antenna is matched with the transmitting antenna of the wireless charging transmitter (resonant at the same or similar frequency, and the energy is transmitted by wireless transmission in the form of radiative resonant magnetic coupling), and the receiving control circuit passes the loop array antenna The energy is converted into direct current DC output to charge the battery, and the receiving control circuit can dynamically adjust the frequency of the loop array antenna and match it with the frequency of the transmitting antenna of the wireless charging transmitter to achieve paired charging, or, real-time and wireless charging Transmitters interact with frequency ranges to achieve "exclusive encryption" wireless charging mode.

Wherein, the receiving antenna may be an antenna composed of at least one antenna among the four antennas (in the case of multiple antennas, the antennas are gated by a switch).

For example: as shown in Figure 8, the receiving antenna is a circular array antenna composed of the above four antennas, and the four antennas specifically include antenna 1, antenna 2, antenna 3, and antenna 4, where antenna 1 and antenna 4 support LTE and 5G The NR frequency band, antenna 2 and antenna 3 only support the 5G NR frequency band, the port of antenna 1 and the port of antenna 4 are used as the ports of the ring array antenna, and the adjacent antennas are connected by a gating circuit 170 with an isolation function. The pass circuit 170 includes a spacer 171 and a switch 172. The spacer 171 is a conductor, and the switch 172 is also connected to the controller. The electronic device can connect the switch 172 of each pass circuit 170 in the wireless charging mode to form a circular array antenna to receive energy. . By adding spacers 171 between the antennas, the gating circuit 170 on the one hand reduces the mutual coupling between the multiple antennas of the electronic device in the normal communication mode, improves the isolation between the multiple antennas, and optimizes the performance of the antennas. On the one hand, multiple antennas can be connected in series to form a loop array antenna through the switch 171, so as to better match the transmitting antenna to transmit energy. In addition, since the antenna 1 and antenna 4 are stronger than the antenna 2 and antenna 3, the loop array antenna set in this way can be Minimize energy transmission losses as much as possible.

The above is the implementation of the embodiment of the present application. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the embodiment of the present application, some improvements and modifications can also be made. These improvements and modifications are also It is regarded as the scope of protection of this application.

Claims (17)

1. A multi-channel selector switch, characterized in that it is applied to wireless communication equipment, the communication equipment supports dual-frequency dual transmission, the wireless communication equipment includes an antenna system and a radio frequency circuit, and the antenna system includes 4 antennas, The multiplex switch includes 6 T ports and 4 P ports, the 6 T ports include 4 first T ports, and the 4 first T ports are fully connected with the 4 P ports port, the first T port is a port that supports the transceiver function; The multiplex switch is used to connect the radio frequency circuit and the antenna system to realize the preset function of the wireless communication device, and the preset function is to support the transmission of the sounding reference signal SRS among the transmitting antennas in rotation, and transmit 4-port SRS functionality. 2. The multiplex switch according to claim 1, wherein the 6 T ports include 2 second T ports, the second T ports are ports that only support the receiving function, and the second The T port is a port connected to one P port. 3. The multi-channel selector switch according to claim 2, wherein the radio frequency circuit comprises: 4 groups of integrated processing circuits for sending and receiving signals and 2 groups of integrated processing circuits for receiving signals; The radio frequency circuit is physically composed of two independent circuit modules; The signal receiving ports of the two independent circuit modules are connected one-to-one with the four first T ports, and the signal receiving ports of the two independent circuit modules are used for one-to-one connection with the two second T ports. 4. The multi-channel selection switch according to claim 3, wherein the two independent circuit modules are two first independent circuit modules; the first independent circuit module includes two signal transceiving ports and one Signal receiving port; The first independent circuit module includes 2 sets of integrated processing circuits for transmitting and receiving signals and 1 set of integrated processing circuits for receiving signals, and the 2 sets of integrated processing circuits for transmitting and receiving signals work in different frequency bands; Each set of transceiver signal integrated processing circuit includes: a first power amplifier PA, a first filter, a first selection switch, a power coupler and a first low noise amplifier LNA, the common end of the first selection switch is connected to the first One end of the filter is connected, the other end of the first filter is connected to one end of the power coupler, the other end of the power coupler is connected to the signal transceiving port, and the two selections of the first selection switch The terminals are respectively connected to the first PA and the first LNA; Each group of receiving signal integrated processing circuits includes: 2-way receiving signal processing circuits, the working frequency bands of the 2-way receiving signal processing circuits are different, and each group of receiving signal integrated processing circuits includes: 2 second low-noise amplifiers LNA, 2 A second filter and a second selection switch, the input end of the second LNA is connected to one end of the second filter, the output end of the second LNA outputs a received signal, and the two selection ends of the second selection switch The other ends of the two second filters are respectively connected, and the common end of the second selection switch is connected to the signal receiving port. 5. The multi-way selector switch according to claim 2, wherein the radio frequency circuit comprises: 4 groups of integrated processing circuits for transmitting and receiving signals and 2 groups of integrated processing circuits for receiving signals; The radio frequency circuit is physically composed of 3 independent circuit modules; the 3 independent circuit modules include: 2 second independent circuit modules and 1 third independent circuit module; The signal receiving and transmitting ports of the two second independent circuit modules are connected one-to-one with the four first T ports, and the signal receiving port of the one third independent circuit module is used for one-to-one connection with the two second T ports connect. 6. The multi-way selector switch according to claim 5, characterized in that, The second independent circuit module includes: 2 groups of integrated processing circuits for sending and receiving signals, the 2 groups of integrated processing circuits for sending and receiving signals work in different frequency bands, and each group of integrated processing circuits for sending and receiving signals includes: a first power amplifier PA, a first filter , a first selection switch, a power coupler and a first low noise amplifier LNA, the common end of the first selection switch is connected to one end of the first filter, and the other end of the first filter is connected to the power One end of the coupler is connected, the other end of the power coupler is connected to the signal transceiving port, and the two selection ends of the first selection switch are respectively connected to the first PA and the first LNA; The third independent circuit module includes: 2 groups of receiving signal integrated processing circuits, each group of receiving signal integrated processing circuits includes: 2 receiving signal processing circuits, the working frequency bands of the 2 receiving signal processing circuits are different, and each group The receiving signal integrated processing circuit includes: 2 second low-noise amplifiers LNA, 2 second filters and a second selection switch, the input end of the second LNA is connected to one end of the second filter, and the second selection switch The two selection terminals of the second LNA are respectively connected to the other terminals of the two second filters, the output terminal of the second LNA outputs a receiving signal, and the common terminal of the second selection switch is connected to the signal receiving port. 7. The multi-channel selector switch according to claim 2, wherein the radio frequency circuit comprises: 4 groups of integrated processing circuits for transmitting and receiving signals and 2 groups of integrated processing circuits for receiving signals; The radio frequency circuit is physically composed of 4 independent circuit modules; the 4 independent circuit modules include: 2 fourth independent circuit modules and 2 fifth independent circuit modules; The signal receiving ports of the two fourth independent circuit modules are connected one-to-one with the four first T ports, and the signal receiving ports of the two fifth independent circuit modules are used for one-to-one connection with the two second T ports connect. 8. The multiplexer switch according to claim 7, characterized in that, The fourth independent circuit module includes: 2 groups of integrated processing circuits for transmitting and receiving signals, the two groups of integrated processing circuits for transmitting and receiving signals work in different frequency bands, and each group of integrated processing circuits for transmitting and receiving signals includes: a first power amplifier PA, a first filter , a first selection switch, a power coupler and a first low noise amplifier LNA, the common end of the first selection switch is connected to one end of the first filter, and the other end of the first filter is connected to the power One end of the coupler is connected, the other end of the power coupler is connected to the signal transceiving port, and the two selection ends of the first selection switch are respectively connected to the first PA and the first LNA; The fifth independent circuit module includes: 1 group of integrated processing circuits for receiving signals, each group of integrated processing circuits for receiving signals includes: 2 receiving signal processing circuits, the working frequency bands of the 2 receiving signal processing circuits are different, and each group The receiving signal integrated processing circuit includes: 2 second low-noise amplifiers LNA, 2 second filters and a second selection switch, the input end of the second LNA is connected to one end of the second filter, and the second selection switch The two selection terminals of the second LNA are respectively connected to the other terminals of the two second filters, the output terminal of the second LNA outputs a receiving signal, and the common terminal of the second selection switch is connected to the signal receiving port. 9. The multi-channel selector switch according to claim 2, wherein the radio frequency circuit comprises: 4 groups of integrated processing circuits for transmitting and receiving signals and 2 groups of integrated processing circuits for receiving signals; The radio frequency circuit is physically composed of 6 independent circuit modules; the 6 independent circuit modules include: 4 sixth independent circuit modules and 2 seventh independent circuit modules; The signal receiving ports of the two fourth independent circuit modules are connected one-to-one with the four first T ports, and the signal receiving ports of the two fifth independent circuit modules are used for one-to-one connection with the two second T ports connect. 10. The multiplexer switch according to claim 9, characterized in that, The sixth independent circuit module includes: 1 set of integrated processing circuits for sending and receiving signals, and each set of integrated processing circuits for sending and receiving signals includes: a first power amplifier PA, a first filter, a first selection switch, a power coupler, and a first low-noise Amplifier LNA, the common end of the first selection switch is connected to one end of the first filter, the other end of the first filter is connected to one end of the power coupler, and the other end of the power coupler connected to the signal transceiving port, and the two selection terminals of the first selection switch are respectively connected to the first PA and the first LNA; The seventh independent circuit module includes: 1 group of receiving signal integrated processing circuits, each group of receiving signal integrated processing circuits includes: 2 receiving signal processing circuits, the working frequency bands of the 2 receiving signal processing circuits are different, and each group The receiving signal integrated processing circuit includes: 2 second low-noise amplifiers LNA, 2 second filters and a second selection switch, the input end of the second LNA is connected to one end of the second filter, and the second selection switch The two selection terminals of the second LNA are respectively connected to the other terminals of the two second filters, the output terminal of the second LNA outputs a receiving signal, and the common terminal of the second selection switch is connected to the signal receiving port. 11. The multiplex switch according to any one of claims 1-10, characterized in that the multiplex switch is composed of field effect transistors, and the number of field effect transistors in the multiplex switch is 64. 12. The multiplexing switch according to any one of claims 1-10, wherein the four antennas include a first antenna, a second antenna, a third antenna and a fourth antenna, and the first antenna , the second antenna, the third antenna and the fourth antenna are all antennas supporting the fifth-generation new air interface 5G NR frequency band. 13. The multiplexing switch according to any one of claims 1-10, wherein the four antennas include a first antenna, a second antenna, a third antenna and a fourth antenna, and the first antenna And the fourth antenna is an antenna supporting the long-term evolution LTE frequency band and the fifth-generation new air interface 5G NR frequency band, and the second antenna and the third antenna are antennas only supporting the 5G NR frequency band. 14. The multi-way selection switch according to claim 13, wherein the antenna system further comprises a first combiner and a second combiner, wherein the first port of the first combiner is used for For connecting the first antenna, the second port of the first combiner is used to connect the first receiving path in the LTE 4x4MIMO of the wireless communication device, and the third port of the first combiner is used for Connect the corresponding P port in the multiplexer; the first port of the second combiner is used to connect the fourth antenna, and the second port of the second combiner is used to connect the wireless For the second receiving path in LTE4x4MIMO of the communication device, the third port of the second combiner is used to connect to the corresponding P port in the multiplexer. 15. The multiplex switch according to claim 14, wherein the antenna system further comprises a first SPDT switch and a second SPDT switch, wherein the first port of the first SPDT switch is used for For connecting the first antenna, the second port of the first SPDT switch is used to connect the first receiving path in the LTE 4x4MIMO of the wireless communication device, and the third port of the first SPDT switch is used to connect the The corresponding P port in the multiplex switch; the first port of the second SPDT switch is used to connect the fourth antenna, and the second port of the second SPDT switch is used to connect the LTE of the wireless communication device For the second receiving path in 4x4 MIMO, the third port of the second SPDT switch is used to connect to the corresponding P port in the multiplexing switch. 16. A radio frequency system, characterized in that the radio frequency system comprises the multiplex switch according to claims 1-15. 17. A wireless communication device, characterized in that it includes an antenna system, a radio frequency circuit, and the multi-channel selection switch according to any one of claims 1-15 or the radio frequency system according to claim 16; The multiplex switch is used to connect the radio frequency circuit and the antenna system to realize the preset function of the wireless communication device, and the preset function is to support the transmission of the sounding reference signal SRS among the transmitting antennas in rotation, and transmit 4-port SRS functionality.