WO2022111205A1

WO2022111205A1 - Radio-frequency system, antenna switching method, and customer premise equipment

Info

Publication number: WO2022111205A1
Application number: PCT/CN2021/127215
Authority: WO
Inventors: 周雷
Original assignee: Oppo广东移动通信有限公司
Priority date: 2020-11-27
Filing date: 2021-10-29
Publication date: 2022-06-02
Also published as: CN115225111B; CN115225111A; CN112468178A; CN112468178B

Abstract

A radio-frequency system, comprising: receiving modules (220), which are used for receiving and processing radio-frequency signals; M antennas, each of which is connected to one receiving module (220); and a radio-frequency transceiver (230), which is configured with M ports, the M antennas being connected to the M ports in a one-to-one correspondence by means of the receiving modules (220), so as to form a preset receiving and transmission path of each antenna, wherein the radio-frequency transceiver (230) stores configuration information of the preset receiving and transmission path and is further used for determining a target transceiving antenna group according to a radio-frequency signal received by each port, the target transceiving antenna group comprising N antennas, where 2 ≤ N＜M.

Description

RF system, antenna switching method and customer premises equipment

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority of the Chinese patent application filed on November 27, 2020 with the application number 2020113565388 entitled "Radio Frequency System, Antenna Switching Method and Customer Front-End Equipment", the entire contents of which are incorporated by reference in in this application.

technical field

The present application relates to the field of antenna technology, and in particular, to a radio frequency system, an antenna switching method and a customer pre-installation device.

Background technique

The statements herein merely provide background information related to the present application and do not necessarily constitute prior exemplary art.

Customer Premise Equipment (CPE) is a mobile signal access device used to receive mobile signals and forward them with wireless WIFI signals. It is also a kind of high-speed signal, such as 4G or 5G signal, into WiFi signal. equipment. Generally, multiple antennas are configured in the customer premises equipment to support receiving switching of multiple antennas. However, in order to realize the multi-antenna switching technology, it is necessary to add a multi-level switch in the radio frequency system, and its control logic is complex, and also affects the communication performance of the radio frequency system.

SUMMARY OF THE INVENTION

According to various embodiments of the present application, a radio frequency system, an antenna switching method, and a customer premises equipment are provided.

A radio frequency system comprising:

A receiving module for receiving and processing radio frequency signals;

M antennas, each of which is connected to the receiving module; and

The radio frequency transceiver is configured with M ports, and the M antennas are connected to the M ports through the receiving module in a one-to-one correspondence, so as to form a preset receiving and transmission path of each antenna;

Wherein, the radio frequency transceiver stores the configuration information of the preset receiving and transmission path, and is further used to determine a target transceiver antenna group according to the radio frequency signal received by each port, and the target transceiver antenna group includes N antennas , where 2≤N<M.

An antenna switching method is applied to a radio frequency system, wherein the radio frequency system includes a receiving module, M antennas and a radio frequency transceiver, and the method includes:

The radio frequency transceiver stores configuration information of a preset receiving and transmission path of each of the antennas, wherein the radio frequency transceiver is configured with M ports, and the M antennas are connected through the receiving module in a one-to-one correspondence. M number of the ports to form a preset receive transmission path for each of the antennas; and

The radio frequency transceiver determines a target transceiver antenna group according to the radio frequency signal received by each of the ports, and the target transceiver antenna group includes N antennas, where 2≤N<M.

A customer premises equipment includes the radio frequency system as described above.

The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below. Other features, objects and advantages of the present application will become apparent from the description, drawings and claims.

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

1 is a schematic structural diagram of a customer front-end device in one embodiment;

Fig. 2 is one of the frame schematic diagrams of the radio frequency system in one embodiment;

3 is a second schematic diagram of a frame of a radio frequency system in an embodiment;

Fig. 4 is the third schematic diagram of the framework of the radio frequency system in one embodiment;

Fig. 5 is the fourth schematic diagram of the framework of the radio frequency system in one embodiment;

6 is a fifth schematic diagram of a frame of a radio frequency system in an embodiment;

7 is the sixth schematic diagram of the framework of the radio frequency system in one embodiment;

FIG. 8 is the seventh schematic diagram of the frame of the radio frequency system in one embodiment;

FIG. 9 is the eighth schematic diagram of the frame of the radio frequency system in one embodiment;

FIG. 10 is the ninth schematic diagram of the framework of the radio frequency system in one embodiment;

11 is a tenth schematic diagram of a frame of a radio frequency system in one embodiment;

12 is an eleventh schematic diagram of a framework of a radio frequency system in an embodiment;

FIG. 13 is the twelfth schematic diagram of the framework of the radio frequency system in one embodiment;

FIG. 14 is the thirteenth schematic diagram of the framework of the radio frequency system in one embodiment;

FIG. 15 is the fourteenth schematic diagram of the framework of the radio frequency system in one embodiment;

FIG. 16 is the fifteenth schematic diagram of the frame of the radio frequency system in one embodiment;

FIG. 17 is the sixteenth schematic diagram of the frame of the radio frequency system in one embodiment;

FIG. 18 is the seventeenth schematic diagram of the framework of the radio frequency system in one embodiment;

FIG. 19 is an eighteenth schematic diagram of a frame of a radio frequency system in an embodiment;

FIG. 20 is the nineteenth schematic diagram of the frame of the radio frequency system in one embodiment;

FIG. 21 is a twentieth schematic diagram of a frame of a radio frequency system in one embodiment;

Figure 22a is a schematic top view of an antenna group in a customer premises equipment in one embodiment;

FIG. 22b is a schematic top view of multiple antennas in a customer front-end equipment in another embodiment;

Figure 22c is a schematic top view of an antenna group in a customer premises equipment in yet another embodiment;

FIG. 22d is a schematic top view of an antenna group in a customer front-end device in yet another embodiment;

FIG. 23 is a flowchart of an antenna switching method in one embodiment.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

It will be understood that the terms "first", "second", etc. used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, a first receiving module may be referred to as a second receiving module, and similarly, a second receiving module may be referred to as a first receiving module, without departing from the scope of this application. Both the first receiving module and the second receiving module are receiving modules, but they are not the same receiving module.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless expressly and specifically defined otherwise.

The present application provides a radio frequency system, which is applied to customer front-end equipment. In one embodiment, in the embodiment shown in FIG. 1 , the customer premises equipment 10 includes a housing 11 and a circuit board (not shown) and a radio frequency system disposed in the housing 11 , and the radio frequency system is electrically connected to the circuit plate. Further, in this embodiment, the housing 11 forms an installation cavity, and the circuit board and the radio frequency system are installed in the installation cavity, and the housing 11 plays the role of support, positioning and protection. Referring to FIG. 1 , the casing 11 is substantially cylindrical, and the appearance of the customer front-end equipment 10 is mainly represented by the casing 11 . In other embodiments, the housing 11 may have other shapes such as prismatic or the like. The circuit board may be provided with a plurality of interfaces 13 exposed to the housing 11 , and these interfaces 13 are electrically connected to the circuit board. Exemplarily, the interface 13 includes a power interface 131, a USB interface 133, a network cable interface 135, a telephone interface, and the like. The power interface 131 is used for connecting an external power source to supply power to the customer pre-installation device 10 by using the external power source, and the USB interface 133 can be used for data transmission between the customer pre-installation device 10 and the external device. Of course, the USB interface 133 and the power interface 131 can be integrated into one body to simplify the arrangement of the interface 13 of the customer premise equipment 10 . The network cable interface 135 may further include a wired network access terminal and a wired network output terminal. The customer premises equipment 10 can be connected to the network through a wired network access terminal, and then connected to other devices through one or more wired network output terminals. Of course, in some implementations, the wired network output terminal may be defaulted, that is, after the customer premise equipment 10 uses the wired network input terminal to access the network, the radio frequency system is used to convert the wired network into a wireless network (such as WiFi) for external equipment. Access the network. Of course, both the wired network access terminal and the wired network output terminal can be omitted. In this embodiment, the customer premises equipment 10 can access a cellular network (also known as a mobile network) through a radio frequency system, and then convert it into a WiFi signal for External devices are connected to the network.

Referring to FIG. 1 , the casing 11 may also be provided with structures such as buttons 14 , and the buttons 14 are used to control the working state of the customer pre-installation device 10 . For example, the user can activate the customer premises equipment 10 or shut down the customer premises equipment 10 by pressing the button 14 . Of course, the housing 11 can also be provided with devices such as indicator lights for prompting the working state of the front-end equipment 10 to the customer. In some embodiments, the buttons 14 and the plurality of interfaces 13 are arranged on the same side of the circuit board and exposed on the same side of the housing 11 . This arrangement is beneficial to the assembly of the buttons 14 and the interfaces 13 and the circuit board, and improves customer satisfaction. The appearance characteristics of the front-end device 10 can improve the convenience of use. Of course, this arrangement can be replaced with other arrangements, for example, the interface 13 and the button 14 can be exposed on different sides of the housing 11 respectively.

As shown in FIG. 2 and FIG. 3 , in one embodiment, the radio frequency system includes M antennas (eg, A1, A2, . , M is a positive integer.

M antennas can send and receive antenna signals in preset frequency bands. Exemplarily, the M antennas may be directional antennas or omnidirectional antennas, and are used for transmitting and receiving antenna signals. For example, the M antennas may be 5G antennas, 4G antennas, WiFi antennas, Bluetooth antennas, etc., and are used to transmit and receive antenna signals corresponding to corresponding frequency bands. The number M of antennas can be 2, 3, 4, 6, 8, 10, etc., to meet the communication requirements of the customer's front-end equipment.

In one of the embodiments, the M antennas are arranged at intervals along the peripheral direction of the customer's front-end equipment, and the radiation surfaces of the M antennas face at least three different directions. It can also be understood that each antenna has a radiating surface, and the radiating surface can be understood as a plane where the radiator of the antenna is used to radiate the antenna signal. Among them, the radiation surfaces of the M antennas face at least three directions, so as to achieve 360° omnidirectional coverage of the horizontal plane. The orientation directions of the radiating surfaces of the antennas are different, and the beam scanning ranges of the corresponding antennas are also different. M antennas can be set at different positions of the customer's front-end equipment 10 respectively, so that the radiation surfaces of the M antennas face at least three directions, so that the beam scanning range of each antenna can achieve 360° omnidirectional coverage on the horizontal plane.

The receiving module 220 is used for receiving and processing the received radio frequency signal, that is, it can support the receiving and processing of the radio frequency signal. The receiving module 220 is configured with a first receiving path, wherein the first receiving path is used to support the receiving and processing of the radio frequency signal. For example, the receiving module 220 may be a device in the RF front-end circuit that is only used for receiving signals, and includes modules composed of LNA, switches, filters, combiners, etc., also called LNA modules or LFEM devices. In this embodiment of the present application, the number of the receiving modules 220 may be one or multiple. When there is one receiving module 220, the receiving module 220 can be connected to multiple (eg, 2, 3 or more) antennas, even if multiple antennas are connected to the same receiving module 220, the multiple antennas are connected to the same antenna. The radio frequency paths between the receiving modules 220 are also independent of each other and do not interfere with each other. When there are multiple receiving modules 220, for each receiving module 220, the receiving module 220 thereof can be connected to one antenna correspondingly. That is, the radio frequency path between each antenna and each receiving module 220 is unique.

The radio frequency transceiver 230 is configured with M ports (for example, RX1, RX2, RX3, . transmission path. The radio frequency transceiver 230 stores the configuration information of the above-mentioned preset reception transmission path, and the preset transmission path can be understood as a unique reception transmission path configured for each antenna. Each port and each antenna are configured with unique identification information, and the receiving and transmission paths between each port and each antenna are unique, that is, the mapping relationship between the ports and the antennas is unique. The configuration information may include the identification information of the antenna, the identification information of the port, the control logic information of each switch on the preset receiving transmission path, and the like.

When the antenna Ai is connected to the port RXi through the receiving module 220, the corresponding receiving transmission path of the antenna is: antenna Ai→the receiving module 220 (the first receiving path)→the port RXi connected to the receiving module 220, where 1≤ i≤M. That is, the antenna and the receiving module 220 are configured together, that is, each antenna and the first receiving path of the receiving module 220 independently constitute a preset receiving transmission path of the antenna. The preset receive and transmit path of each antenna configuration is used to transmit the radio frequency signal received by the antenna Ai to the corresponding port RXi. The configuration information of the unique receive transmission path between each antenna and its corresponding port may be pre-stored in the radio frequency transceiver 230 . In addition, the multiple ports of the radio frequency transceiver 230 can receive the radio frequency signal received by each antenna correspondingly, and analyze the network information of the radio frequency signal received by each receiving port to determine the target transceiver antenna group. The target transceiver antenna group includes N antennas, where 2≤N<M, and N is a positive integer. It can be understood that the target transceiver antenna group may be composed of N antennas with optimal network signals, or may be network signals. It is composed of any N antennas that reach the preset threshold.

It should be noted that the number of N can be set according to the multiple input multiple output (Multiple Input Multiple Output, MIMO) technology that the customer's front-end equipment needs to support. For example, if the customer's front-end equipment needs to support 2*2MIMO, you need to select 2 antennas from the multiple antennas as the target transceiver antenna group; if the customer's front-end equipment needs to support 4*4MIMO, you need to select four antennas from the multiple antennas. The branch antenna is used as the target transceiver antenna group, etc.

In one embodiment, the radio frequency transceiver 230 may further control each antenna of the target transceiver antenna group to be in a working state according to the stored configuration information of the unique receive transmission path of each antenna, so as to control the target transceiver antenna group to transmit and receive radio frequencies Signal.

The above-mentioned radio frequency system includes a receiving module, a radio frequency transceiver and M antennas, wherein the radio frequency transceiver is configured with M ports, and the M antennas are connected to the M ports through the receiving module in a one-to-one correspondence, so as to constitute the preset of each antenna. receiving transmission path; meanwhile, the radio frequency transceiver stores the configuration information of the preset receiving transmission path, and is also used to determine the target transceiver antenna group according to the radio frequency signal received by each port. The above radio frequency system can effectively reduce the number of switch stages in the radio frequency system and the logic complexity of switch control, thereby reducing the insertion loss of the radio frequency front-end circuit in the radio frequency system, which is beneficial to the optimization of indicators, and improves the sensitivity performance to improve the radio frequency system. communication performance. In addition, the determination and control of the target transceiver antenna are realized by the radio frequency transceiver 230 without the participation of the baseband processor. The radio frequency transceiver 230 can process the underlying signals (RF signals) received by each port in real time. It can sense the reception status of each antenna to the radio frequency signal, and the control response is accurate and timely.

As shown in FIG. 4 and FIG. 5 , in one of the embodiments, the radio frequency system further includes at least one transceiver module 210 , and the transceiver module 210 is configured to support transceiver processing of radio frequency signals. That is, the transceiver module 210 can receive and transmit radio frequency signals, and can also perform processing such as amplifying and filtering the radio frequency signals. Specifically, the transceiver module 210 is configured with a second receiving channel and a transmitting channel, wherein the second receiving channel is used to support the receiving and processing of the radio frequency signal, and the transmitting channel is used to support the transmitting and processing of the radio frequency signal. For example, the transceiver module 210 may be a device for transmitting and receiving signals in a radio frequency front-end circuit, which may include a power amplifier (PA), a switch, a filter, a combiner, a duplexer, a low noise amplifier (LNA), etc. The module composed of the device is also called L-PAMiD device.

In this embodiment of the present application, the number of the transceiver modules 210 may be one or multiple. For each transceiver module 210, the transceiver module 210 may be connected to one antenna, or the transceiver module 210 may be connected to two antennas. Even if there are two antennas connected to the same transceiver module 210, the two antennas are connected to the same transceiver module 210. The radio frequency paths between the same transceiver modules 210 are also independent of each other and do not interfere with each other. That is, the radio frequency path between each antenna and each transceiver module 210 is unique. When the radio frequency system includes the transceiver module 210, the M antennas are connected to the M ports via the receiving module and the transceiver module in a one-to-one correspondence. The M ports configured on the radio frequency transceiver 230 may include a receiving port RX and a transmitting and receiving port TRX. Wherein, the sum of the number of the receiving port RX and the receiving and transmitting port TRX is equal to M. Specifically, when the antenna is connected to the transceiver port TRX through the transceiver module 210, the corresponding receiving transmission path of the antenna is: antenna→transceiver module 210 (second receiving path)→transceive port TRX; When the port RX is connected, the receiving and transmission path corresponding to the antenna is: antenna→receiving module 220 (first receiving path)→receiving port RX. That is, the antenna and the transceiver module 210 or the receiving module 220 are configured together, that is, each antenna and the second receiving path of the transceiver module 210 independently constitute the receiving transmission path of one antenna, or the communication between each antenna and the receiving module 220 The first receiving path alone constitutes a receiving transmission path of one antenna.

As shown in FIG. 6 , in one embodiment, each transceiver module is correspondingly connected to one antenna, and each receiving module is correspondingly connected to one antenna. The number of the transceiver modules is j, and the number of receiving modules is k, where j+k=M, j≥1, k≥3, and both j and k are positive integers. Wherein, when the radio frequency system supports the single-channel transmission mode, j=1, that is, the radio frequency system includes one transceiver module 210, which may be referred to as the first transceiver module. The multiple receiving modules may include a first receiving module 221 , a second receiving module 222 , . . . the kth receiving module, where k≧3, and k is a positive integer. When N=4, the target transceiver antenna group includes 4 antennas, wherein at least one antenna is a transmit antenna, and the transmit antenna is connected to the transceiver module 210 to transmit radio frequency signals. Specifically, M is equal to eight, and the eight antennas are denoted as antennas A1, A2, A3, A4, A5, A6, A7, and A8, respectively. The plurality of receiving modules may include a first receiving module 221 , a second receiving module 222 , . . . a seventh receiving module 227 . Wherein, the radio frequency transceiver 230 may be correspondingly provided with one transceiver port (TRX1) and seven receive ports (RX2, RX3, RX4, RX5, RX6, RX7, RX8), wherein the eight ports are respectively connected with the first transceiver module 210, the A receiving module 221, a second receiving module 222, ... a seventh receiving module 227 are connected in one-to-one correspondence.

Among them, the only receiving and transmission paths configured by the antennas A1, A2, A3, A4, A5, A6, A7, and A8 are as follows:

The reception and transmission path of the antenna A1 is: antenna A1→the first transceiver module 210→the first transceiver port TRX1;

The receiving and transmission path of the antenna A2 is: antenna A2→the first receiving module 221→the second receiving port RX2;

The receiving and transmission path of the antenna A3 is: antenna A3→the second receiving module 222→the third receiving port RX3;

The receiving and transmission path of the antenna A4 is: antenna A4→the third receiving module 223→the fourth receiving port RX4;

The receiving and transmission path of the antenna A5 is: antenna A5→the fourth receiving module 224→the fifth receiving port RX5;

The receiving and transmission path of the antenna A6 is: antenna A6 → the fifth receiving module 225 → the sixth receiving port RX6;

The receiving and transmission path of the antenna A7 is: antenna A7→the sixth receiving module 226→the seventh receiving port RX7;

The receiving and transmission path of the antenna A8 is: antenna A8→the seventh receiving module 227→the eighth receiving port RX8.

As shown in FIG. 7 , in one of the embodiments, when the radio frequency system supports a dual-channel transmission mode, j=2, that is, the radio frequency system includes two transceiver modules, which can be denoted as a first transceiver module 211 and a second transceiver module 212. The plurality of receiving modules may include a first receiving module 221, a second receiving module 222, . . . a kth receiving module, where k≥2. Specifically, M is equal to eight, and the eight antennas are respectively recorded as antennas A1, A2, A3, A4, A5, A6, A7, and A8; wherein, the receiving module may include a first receiving module 221, a second receiving module 222, ... Six receiving modules 226 . Wherein, the radio frequency transceiver 230 can be correspondingly provided with two transceiver ports (TRX1, TRX5) and six receive ports (RX2, RX3, RX4, RX6, RX7, RX8), wherein the eight ports are respectively connected with the first transceiver module 211, The second transceiver module 212 , the first receiving module 221 , the second receiving module 222 , the sixth receiving module 226 are connected in one-to-one correspondence.

The reception and transmission path of the antenna A1 is: antenna A1→the first transceiver module 211→the first transceiver port TRX1;

The receiving and transmission path of the antenna A5 is: antenna A5→the second transceiver module 212→the second transceiver port TRX5;

The receiving and transmission path of the antenna A6 is: antenna A6→the fourth receiving module 224→the sixth receiving port RX6;

The receiving and transmission path of the antenna A7 is: antenna A7→the fifth receiving module 225→the seventh receiving port RX7;

The receiving and transmission path of the antenna A8 is: antenna A8→the sixth receiving module 226→the eighth receiving port RX8.

The two transceiver modules 210 and the six receiving modules 220 are each connected to a dedicated antenna. Each circuit module (transceiver module 210, receiver module 220) and corresponding antennas (A1, A2, A3, A4, A5, A6, A7, A8) form 8 dedicated reception transmission paths (signal transmission channels), each The receiving transmission paths are independent of each other, that is, the connection relationship between the receiving transmission path and the antenna is a one-to-one binding connection relationship, and the connection relationship is unchanged. Compared with the traditional multi-antenna selection RF system, it can effectively reduce the number of switching stages and control complexity, thereby reducing the insertion loss of the RF front-end circuit in the RF system, which is conducive to index optimization and improves sensitivity performance. In addition, the determination and control of the target transceiver antenna are realized by the radio frequency transceiver 230, and the state of the radio frequency transceiver signal can be sensed in time through the real-time processing of the underlying signal, and the control response is accurate and timely. At the same time, due to the improvement of RF performance, a higher degree of freedom in design can be obtained. For example, when each antenna is installed and placed, the degree of freedom is higher, and it does not need to be restricted by the connection relationship of the physical antenna, and the insertion loss of the front-end circuit is optimized. , the power consumption will also be reduced, and the thermal design requirements can also be appropriately relaxed.

In some embodiments, the radio frequency system supports an antenna SRS (Sounding Reference Signal, sounding reference signal) round-robin function to improve network throughput. 5G networks and other support beamforming technology (beforming technology), which can transmit directionally to terminals (for example, network terminals such as customer front-end equipment and mobile phones). If the base station wants to transmit in a directional manner, it must first detect the location of the terminal, the quality of the transmission path, etc., so that the resources of the base station can be allocated to each terminal more accurately. Sending the SRS information by the terminal is one of the ways for the base station to detect the location and channel quality of the terminal.

In one of the embodiments, the radio frequency system supports single-channel transmission, and j=1, that is, the radio frequency system includes one transceiver module, which may be referred to as the first transceiver module. The plurality of receiving modules may include a first receiving module, a second receiving module, . . . a kth receiving module, where k≧3. The radio frequency system also includes a first switch array. Wherein, the first switch array is respectively connected with the radio frequency transceiver, the first transceiver module, at least one receiving module, and at least two antennas (eg A1, A2 . . . ). The first switch array is used to conduct the unique reception and transmission path of each antenna under the control of the radio frequency transceiver, and to selectively conduct the transmission path between the first transceiver module and any antenna connected to the first switch array, respectively, It realizes the function of transmitting a signal of one channel of the radio frequency system in turn between at least two antennas.

As shown in FIG. 8 , specifically, M is equal to eight, and the eight antennas are denoted as antennas A1, A2, A3, A4, A5, A6, A7, and A8, respectively. The first switch array 240 is correspondingly connected to the radio frequency transceiver 230 , the first transceiver module 211 , a receiving module 220 , and the two antennas A1 and A2 . Among the two antennas connected to the first switch array 240, a first transceiver module 211 is provided on the receiving and transmission path of one of the antennas A1. Specifically, the first switch array 240 may include two SPDT switches, marked as SPDT1 and SPDT2 respectively, wherein a single terminal of SPDT1 is connected to the first transceiver module 211, a second terminal of SPDT1 is connected to the antenna A1, and the other terminal of SPDT1 is connected to the antenna A1. A second end is connected to a second end of the SPDT2, the other second end of the SPDT2 is connected to the receiving module 220, and a single terminal of the SPDT2 is connected to the antenna A2. Wherein, the first switch array 240 can conduct the unique receiving and transmission path of each antenna under the control of the radio frequency transceiver 230, and in the transmission control of the radio frequency system, the radio frequency transceiver 230 can control the first switch array 240 to select the conduction path. The transmission path of the first transceiver module 211 is connected to the radio frequency path between the antenna A1 or the antenna A2 (shown as a dashed line path in FIG. 8 ), so as to realize the rotation function of one transmission signal of the radio frequency system between the two antennas.

As shown in FIG. 9 , in one embodiment, the first switch array 240 is correspondingly connected to the radio frequency transceiver 230 , the first transceiver module 211 , the three receiving modules 220 , and the four antennas A1 , A2 , A3 , and A4 . Specifically, the first switch array 240 may include SP4T switches and three SPDT switches, which are respectively denoted as SPDT1, SPDT2, and SPDT3. Wherein, the first switch array 240 can conduct the unique receiving and transmission path of each antenna under the control of the radio frequency transceiver 230, and in the transmission control of the radio frequency system, the radio frequency transceiver 230 can control the first switch array 240 to select the conduction path. The transmission path of the first transceiver module 211 is connected to any radio frequency path between the antennas A1, A2, A3, and A4 (shown by the dotted line path in FIG. 9), so as to realize the rotation of one transmission signal of the radio frequency system among the four antennas. Function.

Based on the radio frequency system shown in Figures 8-9, by setting the first switch array 240, in the process of realizing the transmission control of the radio frequency signal, only two levels of switches need to be set in the transmission path of the radio frequency signal. A radio frequency system with multiple antenna selection can effectively reduce the number of switching stages and control complexity, thereby reducing the insertion loss of the radio frequency front-end circuit in the radio frequency system.

As shown in FIG. 10 , in one embodiment, the radio frequency system supports single-channel transmission, and the radio frequency system includes a transceiver module, which may be referred to as a first transceiver module 211 . The first switch array 240 is respectively connected to the radio frequency transceiver 230 , the first transceiver module 211 , each receiving module, and each antenna correspondingly. The first switch array 240 is used to conduct the unique receiving and transmission path of each antenna under the control of the radio frequency transceiver 230, and selectively conduct the transmitting path between the first transceiver module 211 and any antenna respectively, so as to realize the radio frequency system The 1T4R function of the one-way transmission signal between the four antennas in the target transceiver antenna group. It can be understood that, under the control of the radio frequency transceiver 230 , the first switch array 240 can conduct the unique receive and transmission path of each antenna. In addition, under the control of the radio frequency transceiver 230 , the first switch array 240 can selectively conduct Through the transmission path between the first transceiver module 211 and any antenna (illustrated by the dotted line path in FIG. 10 ), so that one transmission signal can traverse each antenna, and then one transmission signal of the radio frequency system can be transmitted in the target transceiver antenna group. The 1T4R function of the rotation between the four antennas.

Specifically, M is equal to eight, and the eight antennas are respectively denoted as antennas A1, A2, A3, A4, A5, A6, A7, and A8; wherein, the radio frequency transceiver 230 can be provided with eight ports, wherein the eight ports are respectively associated with the A transceiver module 211, a first receiving module 221, a second receiving module 222, ... a seventh receiving module 227 are connected in one-to-one correspondence.

The first switch array 240 is respectively connected to the first transceiver module 211 , the first receiving module 221 , the second receiving module 222 , the seventh receiving module 227 , the antennas A1 , A2 , A3 , A4 , A5 , A6 , A7 , and A8 . Specifically, the first switch array 240 may include: SP8T switches and seven SPDT switches (respectively referred to as SPDT1, SPDT2, SPDT3, SPDT4, SPDT5, SPDT6, and SPDT7). Among them, the single-terminal first transceiver module 211 of the SP8T switch is connected, the second terminal of the DP8T switch is connected to the antenna A1, and the other seven second terminals of the SP8T switch are respectively connected to SPDT1, SPDT2, SPDT3, SPDT4, SPDT5, SPDT6, SPDT7 A second end of SPDT1 is connected in a one-to-one correspondence, the other second end of SPDT1 is connected to the first receiving module 221, the single terminal of SPDT1 is connected to the antenna A2; the other second end of SPDT2 is connected to the second receiving module 222, and the SPDT2 The single terminal of SPDT3 is connected to antenna A3; the other second end of SPDT3 is connected to the third receiving module 223, the single terminal of SPDT3 is connected to antenna A4; the other second end of PDT4 is connected to the fourth receiving module 224, and the single terminal of SPDT4 is connected to the fourth receiving module 224. The terminal is connected to the antenna A5; the other second end of the SPDT5 is connected to the fifth receiving module 225, and the single terminal of the SPDT5 is connected to the antenna A6; the other second end of the SPDT6 is connected to the sixth receiving module 226, and the single terminal of the SPDT6 is connected to the antenna A6. The antenna A7 is connected; the other second end of the SPDT7 is connected to the seventh receiving module 227, and the single terminal of the SPDT7 is connected to the antenna A8.

The receiving and transmission path of the antenna A1 is: the antenna A1→a second terminal P1 of the SP8T switch→the single terminal of the SP8T switch→the first transceiver module 211→the first transceiver port TRX1;

The receiving and transmission path of the antenna A2 is: the antenna A2→the single terminal of the SPDT1→one of the second ends of the SPDT1→the first receiving module 221→the second receiving port RX2;

The receiving and transmission path of antenna A3 is: antenna A3→single terminal of SPDT2→one of the second terminals of SPDT2→second receiving module 222→third receiving port RX3;

The receiving and transmission path of the antenna A4 is: the antenna A4→the single terminal of the SPDT3→one of the second ends of the SPDT3→the third receiving module 223→the fourth receiving port RX4;

The receiving and transmission path of the antenna A5 is: the antenna A5→the single terminal of the SPDT4→the first and second ends of the SPDT4→the fourth receiving module 224→the fifth receiving port RX5;

The receiving and transmission path of the antenna A6 is: the antenna A6→the single terminal of the SPDT5→one of the second ends of the SPDT5→the fifth receiving module 225→the sixth receiving port RX6;

The receiving and transmission path of antenna A7 is: antenna A7→single terminal of SPDT6→one of the second terminals of SPDT6→sixth receiving module 226→seventh receiving port RX7;

The receiving and transmission path of the antenna A8 is: the antenna A8→the single terminal of the SPDT7→one of the second ends of the SPDT7→the seventh receiving module 227→the eighth receiving port RX8.

The radio frequency transceiver 230 may correspondingly store information such as the unique receive transmission path of each antenna, and the control logic of each switch in each receive transmission path. When the radio frequency transceiver 230 needs to determine the target transceiver antenna group, the radio frequency transceiver 230 can correspondingly control each switch in the first switch array 240 to correspondingly turn on the path where the unique receive and transmission path of each antenna is located, and then can control each antenna according to The network information of the received RF signal is used to determine the target transceiver antenna group. The antennas in the target transceiver antenna group include four antennas, specifically including antenna A1, and three antennas in antennas A2, A3, A4, A5, A6, A7, and A8. Among other things, the network information may include raw and processed information associated with wireless performance metrics of the received RF signals, such as received power, reference signal received power, reference signal received quality, received signal strength indication, signal-to-noise ratio, etc. . Exemplarily, the network information is taken as an example of receiving power for description. The radio frequency transceiver 230 may sort the size of the signal-to-noise ratio Si of the radio frequency signals received by each receiving port, where i identifies identification information of the receiving port, for example, the signal-to-noise ratio of the first receiving port is S1. The order of the signal-to-noise ratio from large to small is S2>S4>S6>S8>S1>S3>S5>S7. At this time, the radio frequency transceiver 230 can connect the antenna A2 corresponding to the second receiving port and the fourth receiving port The corresponding antenna A4 and the antenna A6 corresponding to the sixth receiving port are used as the other three antennas of the target transceiver antenna group.

After the radio frequency transceiver 230 determines the target transceiver antenna group, it can control the four antennas (A1, A2, A4, A6) in the target transceiver antenna group to be in working state, so as to realize the transceiver control of radio frequency signals. In addition, in order to improve the throughput of the radio frequency system, the radio frequency system can also control each switch of the first switch array 240, so that the radio frequency system can support a 1T4R (1T4R ( 1 transmitting 4 receiving) function, that is, there is only one transmitting signal, and SRS (Sounding Reference Switching, sounding reference signal) switching will be performed in the 4 receiving channels (four antennas).

In this embodiment, under the control of the radio frequency transceiver 230, the first switch array 240 can enable the radio frequency system to support the 1T4R (1 transmitting 4 receiving) function in which one transmission signal is transmitted in turn among the four antennas in the target transceiver antenna group , which improves the throughput of the RF system.

As shown in FIG. 11 , in one of the embodiments, the radio frequency system supports single-channel transmission, where j=2, the transceiver module includes a first transceiver module 211 and a second transceiver module 212 , and the multiple receiving modules 220 may include a first transceiver module 212. The receiving module, the second receiving module, . . . the kth receiving module, where k>2, and k=M-2. The radio frequency system further includes: a second switch array 250 . The second switch array 250 is respectively connected to the radio frequency transceiver 230 , the first transceiver module 211 , some receiving modules 220 , and P antennas (eg, A1 , A2 , A3 , A4 , and A6 ). Wherein, the second switch array 250 is used for conducting the preset receiving and transmitting paths of each antenna under the control of the radio frequency transceiver 230, and selectively conducting the first transceiver module and the P antennas A1, A2, A3, and A4 respectively. The radio frequency channel between A6 and A6; to realize the rotation function of one transmission signal of the radio frequency system among P antennas A1, A2, A3, A4, and A6; among them, P≤M.

As shown in FIG. 12, in another embodiment, the second switch array 250 may also be respectively connected with the radio frequency transceiver 230, the second transceiver module 212, some of the receiving modules 220, and P antennas (for example, A4, A5, A6, A7, A8) are correspondingly connected; wherein, the second switch array 250 is used to conduct the preset receiving and transmission path of each antenna under the control of the radio frequency transceiver 230, and selectively conduct the second transceiver module and the P antennas respectively The radio frequency channel receiving module between A4, A5, A6, A7, and A8 is used to realize the rotation function of one transmission signal of the radio frequency system among P antennas A4, A5, A6, A7, and A8; among them, P≤M.

As shown in FIG. 13 , in one of the embodiments, the radio frequency system supports single-channel transmission, j=2, that is, the multiple transceiver modules include a first transceiver module 211 and a second transceiver module 212 , and multiple receiving modules 220 may include a first receiving module, a second receiving module, . . . a kth receiving module, where k>2, and k=M-2. The radio frequency system also includes a second switch array. The second switch array includes a first switch module 251' and a second switch module 252'. The first switch module 251' is respectively connected with the radio frequency transceiver 230, the first transceiver module 211, part of the receiving modules, and Q1 (eg A1, A2, A3, A4) antennas; the second switch module 252' is respectively connected with the radio frequency transceiver 230. The second transceiver module 212, the remaining receiving modules, and the Q2 (for example, A5, A6, A7, and A8) antennas are connected correspondingly. The second switch array 250 is used to conduct the unique receive and transmission path of each antenna under the control of the radio frequency transceiver 230, and selectively conduct the radio frequency between the first transceiver module 211 and some of the antennas (the number of antennas is Q1) Paths and selectively conducting radio frequency paths between the second transceiver module 212 and the remaining antennas (the number of antennas is Q2) (shown as dashed paths in FIG. 13 ), where Q1+Q2=M. It realizes the 1T4R function of transmitting one signal of the radio frequency system in turn among the four antennas, so as to improve the throughput of the radio frequency system.

As shown in FIG. 14 , in one embodiment, the second switch array 250 is configured to conduct the unique receive and transmission path of each antenna under the control of the radio frequency transceiver 230 , and selectively conduct the first transceiver module 211 respectively The radio frequency path between the second transceiver module 212 and any antenna is selectively connected, so as to realize the transmission of one transmission signal of the radio frequency system among the four antennas in the target transceiver antenna group. 1T4R function to increase the throughput of this RF system. Specifically, M is equal to eight, and the eight antennas are denoted as antennas A1, A2, A3, A4, A5, A6, A7, and A8, respectively. The second switch array 250 includes a first switch unit 251 , a second switch unit 252 , a third switch unit 253 , a fourth switch unit 254 , three fifth switch units 255 and three sixth switch units 256 . The first end of the first switch unit 251 is connected to the first transceiver module 211 , the other first end of the first switch unit 251 is connected to a second end of the second switch unit 252 , and the first end of the first switch unit 251 The second end is connected to a first end of the third switch unit 253; a second end of the third switch unit 253 is connected to the antenna A1, and the other three second ends of the third switch unit 253 are respectively connected to three fifth switches One first end of the unit 255 is connected in a one-to-one correspondence, the other first ends of the three fifth switch units 255 are respectively connected with the three receiving modules 220 in a one-to-one correspondence, and the second ends of the three fifth switch units 255 are respectively connected with the three receiving modules 220. The antennas A2, A3, and A4 are connected in one-to-one correspondence; a first end of the second switch unit 252 is connected to the second transceiver module 212 , and the other first end of the second switch unit 252 is connected to another first end of the first switch unit 251 The two terminals are connected, the other second terminal of the second switch unit 252 is connected to the first terminal of the fourth switch unit 254 , the second terminal of the fourth switch unit 254 is connected to the antenna A5 , and the other three terminals of the fourth switch unit 254 are connected to the antenna A5 . The second ends of the three sixth switch units 256 are respectively connected to the first ends of the three sixth switch units 256 in a one-to-one correspondence, and the other first ends of the three sixth switch units 256 are respectively connected to the remaining three receiving modules 220 in a one-to-one correspondence. The second ends of the sixth switch units 256 are respectively connected to the antennas A6, A7 and A8. Exemplarily, the first switch unit 251 and the second switch unit 252 are both DPDT switches, the third switch unit 253 and the fifth switch unit 255 are both SP4T switches, and the fourth switch unit 254 and the sixth switch unit 256 are both The SPDT switch is taken as an example to illustrate the unique receiving and transmission paths configured by its antennas A1, A2, A3, A4, A5, A6, A7, and A8 (shown by the solid line of the second switch array 250 in the figure):

The receiving and transmission path of the antenna A1 is: antenna A1→a second end of SP4T1→a second end of DPDT1→first transceiver module 211→first transceiver port TRX1;

The receiving and transmission path of the antenna A2 is: antenna A2→the first end of SPDT1→the other first end of SPDT1→the first receiving module 221→the second receiving port RX2;

The receiving and transmission path of the antenna A3 is: the antenna A3→the first end of the SPDT2→the other first end of the SPDT2→the second receiving module 222→the third receiving port RX3;

The receiving and transmission path of the antenna A4 is: the antenna A4→the first end of the SPDT3→the other first end of the SPDT3→the third receiving module 223→the fourth receiving port RX4;

The receiving and transmission path of the antenna A5 is: the antenna A5→a second end P1 of SP4T2→a second end P1 of DPDT2→the second transceiver module 212→the second transceiver port TRX5;

The receiving and transmission path of the antenna A6 is: the antenna A6→the first end of the SPDT5→the other first end of the SPDT4→the fourth receiving module 224→the sixth receiving port RX6;

The receiving and transmission path of the antenna A7 is: antenna A7→the first end of SPDT6→the other first end of SPDT5→the fifth receiving module 225→the seventh receiving port RX7;

The receiving and transmission path of the antenna A8 is: antenna A8→the first end of SPDT7→the other first end of SPDT6→the sixth receiving module 226→the eighth receiving port RX8.

The radio frequency system in this embodiment includes two transceiver modules and six receiving modules, and the two transceiver modules and the six receiving modules are each connected to a dedicated antenna. Each transceiver module, receiving module and the corresponding 8 antennas form 8 dedicated transmission paths at the receiving site. The transmission paths at each receiving site are independent of each other, and the transceiver module 210, the receiving module 220 and the switch on the transmission path at each receiving site are all It is directly controlled by the radio frequency transceiver 230. Compared with the traditional multi-antenna selection radio frequency system (multi-level switches are provided and controlled by different controllers), each switch unit in the second switch array 250 is Controlled by the radio frequency transceiver 230, the number of switching stages and the control complexity can be effectively reduced.

Specifically, the antennas A1, A2, A3, A4, A5, A6, A7, and A8 can transmit the received radio frequency signals to the transceiver module 210 or the receiving module 220 on the respective receiving transmission paths for processing such as amplification, filtering, etc. The respective receiving and transmission paths transmit the processed radio frequency signals to the eight receiving ports of the radio frequency transceiver 230 correspondingly. The radio frequency processor processes the radio frequency signals received by each receiving port, and calculates the target transceiver antenna group. The target transceiver antenna group includes antenna A1 or antenna A5, and also includes any three antennas among antennas A2, A3, A4, A6, A7, and A8. If the target transceiver antenna group is the antenna group (A1, A2, A4, A6), the RF transceiver 230 can control the second switch array 250 to conduct the channel where the respective receiving and transmission paths of the antennas A1, A2, A4, and A6 are located. , to receive RF signals.

In one embodiment, the radio frequency transceiver 230 is further configured to verify the determined target transceiver antenna group, and ensure that the performance of using the target transceiver antenna group to transmit and receive radio frequency signals is optimal. If the target transceiver antenna group is the antenna group (A1, A2, A4, A6), the radio frequency transceiver 230 can receive the radio frequency signal based on the antenna group (A1, A2, A4, A6), and obtain the radio frequency signal based on the antenna group (A1, A2, A4, A6). A2, A4, A6) the signal-to-noise ratio of the radio frequency signal measured, and recorded as the first signal-to-noise ratio. In addition, the radio frequency transceiver 230 can control the antenna groups (A5, A2, A4, A6) to receive radio frequency signals, that is, replace one transmitting antenna on the basis of the target transceiver antenna group, and the remaining three antennas remain unchanged, and obtain The signal-to-noise ratio of the radio frequency signal measured based on the antenna group (A5, A2, A4, A6) is recorded as the second signal-to-noise ratio. The radio frequency transceiver 230 can compare the magnitudes of the first signal-to-noise ratio and the second signal-to-noise ratio, and use the antenna group corresponding to the larger signal-to-noise ratio as the target transceiver antenna group, and then can verify the determined radio frequency signal to obtain Improve the communication performance of the RF system. At the same time, under the control of the radio frequency transceiver 230, the second switch array 250 can selectively conduct the radio frequency path between the radio frequency channel in the first transceiver module 211 and any antenna in the target transceiver antenna group (illustrated by the dotted line path in FIG. 14 ) , in order to realize the 1T4R function in which one transmission signal of the radio frequency system is transmitted in turn among the four antennas in the target transceiver antenna group, so as to improve the throughput of the radio frequency system.

In the radio frequency systems in the above embodiments, each receiving module 220 and transceiver module 210 is connected to its own dedicated antenna, and the radio frequency transceiver 230 can sense and calculate the transceiver status of each radio frequency path in real time. In the traditional multi-antenna selection radio frequency system, the perception of the antenna and channel status is performed by the baseband processor after reporting the underlying information to the baseband processor through the radio frequency transceiver 230 . Obviously, in the radio frequency system in the above embodiment, the radio frequency transceiver 230 can directly determine the target transceiver antenna group according to the radio frequency signals received by each receiving port, and then control the target transceiver antenna group to send and receive radio frequency signals without the need for baseband processing. It can greatly shorten the processing time of the radio frequency signal and the response time of feedback on the real-time status, and improve the real-time performance and accuracy of the antenna switching. At the same time, because the radio frequency transceiver 230 can determine the target transceiver antenna group according to the radio frequency signals received by each receiving port, and then control the target transceiver antenna group to transmit and receive radio frequency signals, the accuracy of the target transceiver antenna group can be improved, thereby improving the performance of the radio frequency system. communication performance.

As shown in FIG. 15 , in one of the embodiments, the radio frequency system supports dual-channel transmission, where j=2, M>4, and the radio frequency system includes a third transceiver module 213, a fourth transceiver module 214, a plurality of receiving modules and a third transceiver module 214. A three-switch array 260 . The third switch array 260 is respectively connected with the radio frequency transceiver 230 , the third transceiver module 213 , the fourth transceiver module 214 , at least two receiving modules 220 , and four antennas, and the third switch array 260 is used for transmitting and receiving at the radio frequency. Under the control of the controller 230, the unique receiving and transmission path of each antenna is turned on, and the radio frequency path between the third transceiver module 213 and the two antennas is selectively turned on, and the fourth transceiver module 214 is selectively connected with the remaining two antennas. The transmission path between the antennas (illustrated by the dotted line path in Figure 15) realizes the 2T4R function in which the two transmission signals of the radio frequency system are simultaneously transmitted between the two antennas in turn.

Specifically, M is equal to eight, and the eight antennas are respectively denoted as antennas A1, A2, A3, A4, A5, A6, A7, and A8, wherein the plurality of receiving modules 220 may include a first receiving module, a second receiving module..., The sixth receiving module. The third switch array 260 is respectively connected with the radio frequency transceiver 230 , the third transceiver module 213 , the fourth transceiver module 214 , the two receiving modules 220 , and the four antennas A1 , A2 , A3 and A4 . Under the control of , the third switch array 260 can selectively conduct the radio frequency paths between the third transceiver module 213 and the two antennas A1 and A2 respectively, and selectively conduct the fourth transceiver module 214 and the remaining two antennas A3 and A2 respectively. The transmission path between A4 realizes the 2T4R function of the two-way transmission signal of the radio frequency system at the same time between the two antennas.

As shown in FIG. 16 , in one embodiment, the third switch array 260 is further configured to selectively conduct the third transceiver module 213 and the four antennas A1 , A2 , A3 , and A4 respectively under the control of the radio frequency transceiver 230 The transmission path between them (Fig. 16 is indicated by the dotted line path), realizes that the 2T4R function of the radio frequency system is compatible with the 1T4R function in which one transmission signal is transmitted in turn among the four antennas. That is, the radio frequency signal sent from the third transceiver module 213 can be traversed to any three-way antennas A2, A3, and A4 in addition to its own dedicated antenna A1.

As shown in FIG. 17 , in one embodiment, the multiple transceiver modules 210 include a third transceiver module 213, a fourth transceiver module 214, a fifth transceiver module 215, and a sixth transceiver module 216, and the multiple receiving modules 220 include a third transceiver module 213, a fourth transceiver module 214, a fifth transceiver module 215, and a sixth transceiver module 216. A receiving module 221 , a second receiving module 222 , a third receiving module 223 and a fourth receiving module 224 . That is, the third receiving module 223 shown in FIG. 11 is replaced with the fifth transceiver module 215 , and the fifth receiving module 225 shown in FIG. 15 is replaced with the sixth transceiver module 216 . On the basis of FIG. 15 , the radio frequency system further includes a fourth switch array 270 . The fourth switch array 270 is respectively connected to the radio frequency transceiver 230 , the fifth transceiver module 215 , the sixth transceiver module 216 , the two receiving modules 220 , and the four antennas A5 , A6 , A7 , and A8 . The fourth switch array 270 conducts the unique reception and transmission path of each antenna under the control of the radio frequency transceiver 230, and selectively conducts the radio frequency path and selectivity between the fifth transceiver module 215 and the two antennas A5 and A6 respectively. Conducting the radio frequency paths between the sixth transceiver module 216 and the remaining two antennas A7 and A8 respectively (illustrated by dotted line paths in FIG. 17 ), the receiving module 220 realizes that the two transmission signals of the radio frequency system are simultaneously transmitted between the two antennas in turn. 2T4R function.

As shown in FIG. 18 , in one embodiment, the fourth switch array 270 is further configured to selectively conduct the fifth transceiver module 215 and the four antennas A5 , A6 , A7 , and A8 under the control of the radio frequency transceiver 230 . The transmission path between them (Fig. 18 is indicated by the dotted line path), realizes that the 2T4R function of the radio frequency system is compatible with the 1T4R function of one transmission signal among the four antennas A5, A6, A7, and A8. That is, the radio frequency signal sent from the fifth transceiver module 215 can be traversed to any three-way antennas A6, A7, and A8 except its own dedicated antenna A5.

In one embodiment, the third switch array 260 is connected to the fourth switch array 270 , and the third switch array 260 and the fourth switch array 270 are used to conduct the third transceiver module 213 , the third transceiver module 213 and the fourth switch array 270 under the control of the radio frequency transceiver 230 . Transmission paths between at least two transceiver modules 210 in the four transceiver modules 214 , the fifth transceiver module 215 and the sixth transceiver module 216 and any antenna.

As shown in FIG. 19 , in one embodiment, the third switch array 260 and the fourth switch array 270 are used to turn on the third transceiver module 213 and the fifth transceiver module 215 under the control of the radio frequency transceiver 230 . The transceiver module 210 corresponds to a transmission path between each antenna and any antenna (shown as a dashed path in FIG. 19 ). M is equal to eight, and the eight antennas are denoted as antennas A1, A2, A3, A4, A5, A6, A7, and A8 respectively. That is, under the control of the radio frequency transceiver 230, the third switch array 260 and the fourth switch array 270 It can conduct the radio frequency channel between the transmission channel of the third transceiver module 213 and any of the antennas A1, A2, A3, A4, A5, A6, A7, and A8, and at the same time, it can also conduct the transmission of the fifth transceiver module 215. The RF path between the channel and any of the antennas A1, A2, A3, A4, A5, A6, A7, and A8.

Specifically, the third switch array 260 includes a seventh switch unit 261 , an eighth switch unit 262 , a ninth switch unit 263 and a tenth switch unit 264 , and the fourth switch array 270 includes an eleventh switch unit 271 and a twelfth switch unit 272 , a thirteenth switch unit 273 and a fourteenth switch unit 274 . Wherein, a first end of the seventh switch unit 261 is connected to the third transceiver module 213 , the other first end of the seventh switch unit 261 is connected to a second end of the eleventh switch unit 271 , and the seventh switch unit 261 A second end of the seventh switch unit 261 is connected to the antenna A1, the other second end of the seventh switch unit 261 is connected to a first end of the eighth switch unit 262, and the other first end of the eighth switch unit 262 is connected to the first receiving module 221 is connected, the second end of the eighth switch unit 262 is connected to the antenna A2, the second end of the seventh switch unit 261 is connected to a first end of the ninth switch unit 263; One end is connected to the fourth transceiver module 214, a second end of the ninth switch unit 263 is connected to the antenna A3, the other second end of the ninth switch unit 263 is connected to a first end of the tenth switch unit 264, The other first end of the tenth switch unit 264 is connected to the second receiving module 222, and the second end of the tenth switch unit 264 is connected to the antenna A4.

A first end of the eleventh switch unit 271 is connected to the fifth transceiver module 215 , the other first end of the eleventh switch unit 271 is connected to another second end of the seventh switch unit 261 , and the eleventh switch unit The other second end of 271 is connected to the antenna A5, the other second end of the eleventh switch unit 271 is connected to a first end of the twelfth switch unit 272, and the other first end of the twelfth switch unit 272 is connected to the third receiving module 223, the second end of the twelfth switch unit 272 is connected to the antenna A6, and the second end of the eleventh switch unit 271 is connected to a first end of the thirteenth switch unit 273; The other first end of the thirteenth switch unit 273 is connected to the fourth transceiver module 214, a second end of the thirteenth switch unit 273 is connected to the antenna A7, and the other second end of the thirteenth switch unit 273 is connected to the tenth One first end of the four switch unit 274 is connected to the other first end of the fourteenth switch unit 274 is connected to the fourth receiving module 224, and the second end of the fourteenth switch unit 274 is connected to the antenna A8.

The radio frequency system shown in FIG. 17-FIG. 19 includes a third transceiver module 213, a fourth transceiver module 214, a fifth transceiver module 215, a sixth transceiver module 216, a first receiving module 221, a second receiving module 222, a The three receiving modules 223 and the fourth receiving module 224 , namely, include four transceiving modules 210 and four receiving modules 220 . When the radio frequency system supports the dual-transmission mode, among the four antennas included in the target transceiver antenna group, the transceiver modules 210 are provided in the reception and transmission paths of two antennas, and the reception and transmission paths of the other two antennas are provided with The receiving module 220, that is, the radio frequency transceiver 230 will select two of the four transceiver modules 210 to work, and select two of the four receiving modules 220 to work, while the remaining

transceiver modules

210 and 220 are not used. After selecting, neither works.

Specifically, if the determined target transceiver antenna group includes antennas A3 and A7, the other two antennas in the target transceiver antenna group are A3 and A8, that is, if the fourth transceiver antenna group and the sixth transceiver antenna group are at the same time When working, it requires the second receiving module 222 and the fourth receiving module 224 to work at the same time. If the determined target transceiver antenna group includes antennas A1, A3 or antennas A1, A5 or antennas A1, A7 or antennas A3, A5 or antennas A5, A7, the other two antennas in the target transceiver antenna group are capable of receiving and transmitting Any two antennas of the receiving module 220 are arranged in the path.

When the radio frequency system shown in FIG. 18 and FIG. 19 supports 1T4R, it can avoid that the third transceiver module 213 or the fifth transceiver module 215 may undertake the functions of transmission and main set reception at the same time, so as to improve the communication performance of the radio frequency system .

In one embodiment, by changing the switch type, the number of switches, and the connection relationship between the switches in the third switch array 260 and the fourth switch array 270, the third switch array 260 and the fourth switch array 270 can be 270 is used for, under the control of the radio frequency transceiver 230, to conduct the radio frequency channel between the transmit path of the third transceiver module 213 and any one of the eight antennas respectively, and to conduct the transmit path of the fourth transceiver module 214 respectively. The radio frequency path with any one of the eight antennas, the radio frequency path between the transmission path of the fifth transceiver module 215 and any one of the eight antennas respectively, and the transmission path of the sixth transceiver module 216 is conducted The channel is respectively the radio frequency channel between any one of the eight antennas, therefore, the diversity and flexibility of the radio frequency system to determine the target transceiver antenna group can be improved.

As shown in FIG. 20, in one of the embodiments, M is equal to eight, and the eight antennas are denoted as antennas A1, A2, A3, A4, A5, A6, A7, and A8, respectively. Among them, the number of transceiver modules 210 is one, the transceiver module 210 is connected to two antennas correspondingly, and the number of receiving modules is three, which can be respectively recorded as the first receiving module 221, the second receiving module 222 and the third receiving module 223, Each receiving module 220 is correspondingly connected to two antennas. That is, the transceiver module 210 is connected to the antennas A1 and A2, the first receiving module 221 is connected to the antennas A3 and A4, the second receiving module 222 is connected to the antennas A5 and A6, and the third receiving module 223 is connected to the antennas A7 and A8. The RF transceiver 230 is configured with eight receiving ports, wherein the receiving channel between each receiving port and each antenna is unique. The radio frequency transceiver 230 is used to control the transceiver module 210 to receive the radio frequency signal of any correspondingly connected antenna A1 or A2 in time-sharing, and to control each receiving module 220 to time-division to receive the radio frequency signal of any correspondingly connected antenna, and to time-division the radio frequency signal of any correspondingly connected antenna. The received eight radio frequency signals are correspondingly output to the eight receiving ports.

In one embodiment, the radio frequency transceiver 230 further includes a fourth switch array 270 and a fifth switch array respectively connected to the radio frequency transceiver 230 . The fourth switch array 270 includes eight first ends and four second ends, wherein the eight first ends are respectively connected to the eight receiving ports in a one-to-one correspondence, and the four second ends are respectively connected to the transceiver modules 210, three The receiving modules 220 are connected in a one-to-one correspondence; the fifth switch array includes four first ends and eight second ends, wherein the four first ends are respectively connected with the transceiver modules 210 and the three receiving modules 220 in a one-to-one correspondence, and eight The second ends are respectively connected to the antennas A1, A2, A3, A4, A5, A6, A7, and A8 in one-to-one correspondence.

Specifically, the fourth switch array 270 may include four SPDT switches, two select terminals of the four SPDT switches are respectively connected to the eight receiving ports of the radio frequency transceiver 230, and single terminals of the four SPDT switches are respectively connected to the transceiver modules 210, The first receiving module 221, the second receiving module 222, and the third receiving module 223 are connected in one-to-one correspondence.

The fifth switch array may include four SPDT switches, two selection terminals of the four SPDT switches are respectively connected with the antennas A1, A2, A3, A4, A5, A6, A7, and A8 in one-to-one correspondence, and the single terminal of the four SPDT switches They are respectively connected with the transceiver module 210 , the first receiving module 221 , the second receiving module 222 and the third receiving module 223 in one-to-one correspondence.

As shown in FIG. 21 , in one embodiment, the fifth switch array may include SP4T switches and four SPDT switches, and the two selection ends of the four SPDT switches are respectively connected to the antennas A1 , A2 , A3 , A4 , A5 , and A6 , A7 and A8 are connected in one-to-one correspondence, the single terminals of the four SPDT switches are respectively connected with the four second terminals of the SP4T switch, and the single terminal of the SP4T switch is connected with the transceiver module 210 . Among them, the fifth switch array is also used to realize the 1T4R function in which one transmission signal of the radio frequency system is alternately transmitted among the four antennas in the target transceiver antenna group under the control of the radio frequency transceiver 230, thereby improving the throughput of the radio frequency system.

In the radio frequency system in this embodiment, each antenna may be configured with a unique receiving and transmission path, and each receiving, storing and transmitting path is configured with unique path identification information. For example, the path identification information of the reception transmission path of the antenna A1 may be identified by path1, and the path identification information of the reception transmission path of the antenna A2 may be identified by path2. The same transceiver module 210 or the same receiver module 220 is shared on the receiving and transmission paths with different path identifier information. The radio frequency transceiver 230 stores the path identification information of each antenna correspondingly, and the radio frequency transceiver 230 places the amplification and filtering processing of the radio frequency signals transmitted by the receiving and transmission paths with different path identification information in the transceiver module 210 or the receiving module 220 for time-sharing. processing, thereby reducing the complexity of circuit design in the radio frequency system.

As shown in FIGS. 22 a to 22 d , in one embodiment, the radio frequency system further includes a substrate 201 , and multiple antennas are symmetrically arranged on both sides of the substrate 201 . Exemplarily, four design solutions for multi-antenna layouts are provided. It should be noted that, the multi-antenna layout design in the embodiment of the present application is not limited to the above-mentioned examples, and may also be other layout manners.

In one embodiment, when there are multiple transceiver modules 210 , multiple antennas corresponding to the multiple transceiver modules 210 are evenly arranged on both sides of the substrate 201 . For example, if the antennas connected to the transceiver module 210 include antennas A1 and A5, the antennas A1 and A5 can be respectively disposed on both sides of the substrate 201 to improve the transmission performance of the radio frequency system.

In the radio frequency system provided in the embodiment of the present application, compared with the traditional multi-antenna selection radio frequency system, the receiving and transmission paths of each antenna are independent of each other, and are controlled by the radio frequency transceiver 230 instead of Further limited by the physical connection relationship on the receiving transmission path, the antenna position design has more degrees of freedom.

In the radio frequency system provided in the embodiments of the present application, each antenna is provided with a unique receiving and transmission path, that is, the number of antennas is the same as that of the receiving and transmitting paths in the radio frequency system, and each receiving and transmitting path has a dedicated antenna. When the radio frequency system needs to receive radio frequency signals, it does not need to switch through multi-level switches, which can reduce the insertion loss on the receiving and transmission path in the radio frequency system, improve the sensitivity of the radio frequency system, and further improve the communication performance of the radio frequency system. At the same time, the radio frequency transceiver 230 in the radio frequency system can process the received radio frequency signal (the underlying signal) to determine the target transceiver antenna group, and the radio frequency transceiver 230 controls the target transceiver antenna group to realize the transmission and reception of the radio frequency signal, The response efficiency to the radio frequency signal can be improved, and the target transceiver antenna group can be controlled in time to realize the transmission and reception of the radio frequency signal.

Due to the improved communication performance of the RF system, a higher degree of design freedom can be obtained. For example, when the antenna is installed and placed, the degree of freedom is higher, and there is no need to be restricted by the connection relationship of the physical antenna; at the same time, due to the optimization of channel insertion loss, when the whole machine is installed, it can be considered to appropriately relax the total radiation efficiency (Total Radiated Power, TRP) Or the requirements of Total Isotropic Sensitivity (TIS), and the antenna is placed in more locations; the freedom of structural design is improved; at the same time, due to the optimization of the insertion loss of the RF system, the power consumption will also be reduced. , the requirements for the heat dissipation design of the RF system can also be appropriately relaxed.

In addition, when the switch array is set in the RF system, the transceiver switching between multiple antennas can also be realized, such as the Antenna Switching Diversity (ASDiV) function, the multiple antenna switching technology (called "8 to 4", and its switching logic It is realized by "edge selection" or "angle selection"), which can simplify the control logic and improve the control efficiency.

FIG. 23 is a flowchart of an antenna switching method in one embodiment. The antenna switching method in this embodiment is described by taking the operation on the radio frequency system in any of the foregoing embodiments as an example. As shown in FIG. 23 , the antenna switching method includes steps 2302 to 2304 .

Step 2302, the radio frequency transceiver stores the configuration information of the preset receive transmission path of each antenna.

The radio frequency transceiver is configured with M ports, and the M antennas are connected to the M ports in a one-to-one correspondence through the receiving module, so as to form a preset receiving and transmission path for each antenna. The RF transceiver stores a unique receive transmission path configured for each antenna. Each receiving port is configured with unique identification information, and the receiving transmission path between each receiving port and each antenna is unique, that is, the mapping relationship between the receiving port and the antenna is unique. Therefore, the above-mentioned radio frequency system is configured with a unique receiving and transmission path for each antenna. A unique receive and transmit path configured for each antenna is used to transmit the radio frequency signal received by the antenna to the corresponding receive port.

Step 2304, the radio frequency transceiver determines the target transceiver antenna group according to the radio frequency signal received by each port.

The multiple receiving ports of the radio frequency transceiver can correspondingly receive the radio frequency signal received by each antenna, and analyze the network information of the radio frequency signal received by each receiving port to determine the target transceiver antenna group. The target transceiver antenna group includes N antennas, where 2≤N<M, and the target transceiver antenna group includes at least one antenna connected to the transceiver module.

Among other things, the network information may include raw and processed information associated with wireless performance metrics of the received RF signals, such as received power, reference signal received power, reference signal received quality, received signal strength indication, signal-to-noise ratio, etc. . Exemplarily, the network information is taken as an example of receiving power for description. The radio frequency transceiver 230 may sort the size of the signal-to-noise ratio Si of the radio frequency signals received by each receiving port, where i identifies identification information of the receiving port, for example, the signal-to-noise ratio of the first receiving port is S1. Among them, the order of the signal-to-noise ratio from large to small is S2>S4>S6>S8>S1>S3>S5>S7. At this time, the radio frequency transceiver can correspond to the antenna A2 corresponding to the second receiving port and the fourth receiving port. The antenna A4 and the antenna A6 corresponding to the sixth receiving port are used as the other three antennas of the target transceiver antenna group.

It should be noted that the number of N can be set according to the multiple input multiple output (MulTIple Input MulTIple Output, MIMO) technology that the customer needs to support. For example, if the customer's front-end equipment needs to support 2*2MIMO, you need to select 2 antennas from the multiple antennas as the target transceiver antenna group; if the customer's front-end equipment needs to support 4*4MIMO, you need to select four antennas from the multiple antennas. The branch antenna is used as the target transceiver antenna group, etc.

The above antenna switching method can effectively reduce the number of switch stages in the radio frequency system and the logic complexity of the switch control, thereby reducing the insertion loss of the radio frequency front-end circuit in the radio frequency system, which is beneficial to the optimization of indicators, and improves the sensitivity performance, so as to improve the radio frequency the communication performance of the system. In addition, the determination and control of the target transceiver antenna are realized by the radio frequency transceiver without the participation of the baseband processor. Responses are accurate and timely.

In one of the embodiments, the antenna switching method may further use the radio frequency transceiver to control the step of receiving the radio frequency signal by the target transceiver antenna group according to the unique receiving and transmission path of each antenna. Specifically, the radio frequency transceiver controls each antenna of the target antenna group to be in a working state according to the stored unique receiving and transmission path of each antenna, so as to control the target transceiver antenna group to send and receive radio frequency signals.

In one of the embodiments, the antenna switching method includes the step of verifying the target transceiver antenna group by the radio frequency transceiver to update the target transceiver antenna group.

Specifically, the radio frequency transceiver verifies the determined target transceiver antenna group, and ensures that the performance of using the target transceiver antenna group to transmit and receive radio frequency signals is optimal. If the target transceiver antenna group is an antenna group (A1, A2, A4, A6), the RF transceiver can receive RF signals based on the antenna group (A1, A2, A4, A6), and obtain RF signals based on the antenna group (A1, A2, A2) , A4, A6) the signal-to-noise ratio of the radio frequency signal measured, and recorded as the first signal-to-noise ratio. In addition, the radio frequency transceiver can control the antenna group (A5, A2, A4, A6) to receive radio frequency signals, that is, replace one transmitting antenna on the basis of the target transmitting and receiving antenna group, and the remaining three antennas remain unchanged, and obtain the signal based on the target transceiver antenna group. The signal-to-noise ratio of the radio frequency signal measured by the antenna group (A5, A2, A4, A6) is recorded as the second signal-to-noise ratio. The radio frequency transceiver can compare the magnitudes of the first signal-to-noise ratio and the second signal-to-noise ratio, and use the antenna group corresponding to the larger signal-to-noise ratio as the target transceiver antenna group, and then can verify the determined radio frequency signal to improve the performance. Communication performance of radio frequency systems.

The embodiment of the present application further provides a customer front-end device, and the customer front-end device further includes the radio frequency system in any of the above-mentioned embodiments. It can reduce the insertion loss of the RF front-end circuit in the RF system, which is conducive to the optimization of indicators, and improves the sensitivity performance to improve the communication performance of the customer's front-end equipment. In addition, the determination and control of the target transceiver antenna are realized by the radio frequency transceiver without the participation of the baseband processor. Responses are accurate and timely.

An embodiment of the present application also provides a customer pre-installation device, including a radio frequency transceiver, where a computer program is stored in the radio frequency transceiver, and when the computer program is executed by the radio frequency transceiver, the radio frequency transceiver enables the radio frequency transceiver to execute the antenna in any of the foregoing embodiments The steps to switch the method.

An embodiment of the present application further provides a customer pre-installation device, including a radio frequency transceiver, where a computer program is stored in the radio frequency transceiver, and when the computer program is executed by the radio frequency transceiver, the radio frequency transceiver enables the radio frequency transceiver to execute the antenna in any of the foregoing embodiments The steps to switch the method.

An embodiment of the present application further provides a customer pre-installation device, including a memory and a processor, where a computer program is stored in the memory, and when the computer program is executed by the processor, the processor executes the method of the antenna switching method in any of the foregoing embodiments. step.

Embodiments of the present application also provide a computer-readable storage medium. One or more non-volatile computer-readable storage media containing computer-executable instructions, when the computer-executable instructions are executed by one or more processors, cause the processor to perform the antenna switching method in any of the above embodiments. step.

A computer program product containing instructions, when executed on a computer, causes the computer to perform an antenna switching method.

Any reference to a memory, storage, database, or other medium as used herein may include non-volatile and/or volatile memory. Nonvolatile memory may include read only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM), which acts as external cache memory. By way of illustration and not limitation, RAM is available in various forms such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous Link (Synchlink) DRAM (SLDRAM), Memory Bus (Rambus) Direct RAM (RDRAM), Direct Memory Bus Dynamic RAM (DRDRAM), and Memory Bus Dynamic RAM (RDRAM).

The above examples only represent several embodiments of the present application, and the descriptions thereof are relatively specific and detailed, but should not be construed as a limitation on the scope of the patent of the present application. It should be noted that, for those skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims

Claims

A radio frequency system comprising:

A receiving module for receiving and processing radio frequency signals;

M antennas, each of which is connected to the receiving module; and

The radio frequency transceiver is configured with M ports, and the M antennas are connected to the M ports through the receiving module in a one-to-one correspondence, so as to form a preset receiving and transmission path of each antenna;

Wherein, the radio frequency transceiver stores the configuration information of the preset receiving and transmission path, and is further used to determine a target transceiver antenna group according to the radio frequency signal received by each port, and the target transceiver antenna group includes N antennas , where 2≤N<M.
The radio frequency system according to claim 1, further comprising a transceiver module, wherein the M antennas are connected to the M ports via the receiving module and the transceiver module in a one-to-one correspondence.
The radio frequency system according to claim 2, wherein the number of the transceiver modules is j, each of the transceiver modules is correspondingly connected to one of the antennas, the number of the receiving modules is k, and each of the receiving modules The module is correspondingly connected to one of the antennas; wherein, j+k=M≥4, j≥1, k≥2, and N=4.
The radio frequency system according to claim 3, wherein the radio frequency system supports single-channel transmission, wherein j=1, the transceiver module includes a first transceiver module, and the radio frequency system further includes:

The first switch array is respectively connected with the radio frequency transceiver, the first transceiver module, each receiving module, and at least two antennas, and the first switch array is used for conducting each radio frequency transceiver under the control of the radio frequency transceiver. A preset receiving and transmission path of the antenna, and selectively conducting the transmitting path between the first transceiver module and the at least two antennas, so that the radio frequency system can realize one transmission signal in the at least two antennas. Rotation function between antennas.
The radio frequency system according to claim 4, wherein the first switch array is respectively connected with M antennas, and is further configured to selectively turn on the first transceiver module and M antennas under the control of a radio frequency transceiver. The transmission path between the antennas enables the radio frequency system to realize the 1T4R function of transmitting a signal in turn among the four antennas in the target transceiver antenna group.
The radio frequency system according to claim 3, wherein the radio frequency system supports single-channel transmission, wherein j=2, the transceiver module includes a first transceiver module and a second transceiver module, and the radio frequency system further includes:

The second switch array is respectively connected with the radio frequency transceiver, the first transceiver module, some of the receiving modules, and the P antennas; wherein, the second switch array is used for controlling the radio frequency transceiver Turning on the preset receiving and transmitting paths of each of the antennas, and selectively turning on the radio frequency paths between the first transceiver modules and the P antennas; or,

The second switch array is respectively connected with the radio frequency transceiver, the second transceiver module, some of the receiving modules, and the P antennas; wherein, the second switch array is used to control the radio frequency transceiver The preset receiving and transmission paths of each of the antennas are turned on, and the radio frequency paths between the second transceiver modules and the P antennas are selectively turned on, so that the radio frequency system can realize one transmission signal in the Rotation function among P antennas; among them, P≤M.
The radio frequency system according to claim 3, wherein the radio frequency system supports single-channel transmission, wherein j=2, the transceiver module includes a first transceiver module and a second transceiver module, and the radio frequency system further includes:

The second switch array includes a first switch module and a second switch module, wherein the first switch module is respectively connected to the radio frequency transceiver, the first transceiver module, part of the receiving module, and the Q1 antenna; Two switch modules are respectively connected to the radio frequency transceiver, the second transceiver module, the remaining receiving modules, and the Q2 antenna; wherein, the second switch array is used to turn on each of the radio frequency transceivers under the control of the radio frequency transceiver. The preset receiving and transmission path of the antenna, and selectively conducting the radio frequency channel between the first transceiver module and the Q1 antenna respectively, and selectively conducting the second transceiver module and the Q2 antenna respectively. The radio frequency channel receiving module between them, wherein, Q1≥2, Q2≥2, and Q1+Q2=M.
The radio frequency system according to claim 3, wherein the radio frequency system supports single-channel transmission, wherein j=2, the transceiver module includes a first transceiver module and a second transceiver module, and the radio frequency system further includes:

The second switch array is respectively connected with the radio frequency transceiver, the first transceiver module, the second transceiver module, and each of the antennas; wherein,

The second switch array is used for conducting the preset receiving and transmitting path of each of the antennas under the control of the radio frequency transceiver, and selectively conducting the communication between the first transceiver module and any one of the antennas, respectively. and selectively conduct the radio frequency path between the second transceiver module and any one of the antennas, so that the radio frequency system realizes that one transmission signal is transmitted in turn among the four antennas in the target transceiver antenna group. 1T4R function.
According to the radio frequency system according to claim 8, M is equal to eight, and the eight antennas are respectively recorded as antennas A1, A2, A3, A4, A5, A6, A7, and A8; wherein,

The second switch array includes a first switch unit, a second switch unit, a third switch unit, a fourth switch unit, three fifth switch units and three sixth switch units, wherein the first switch unit is The first end is connected to the first transceiver module, the other first end of the first switch unit is connected to a second end of the second switch unit, and a second end of the first switch unit is connected to A first end of the third switch unit is connected to the antenna A1, a second end of the third switch unit is connected to the antenna A1, and the other three second ends of the third switch unit are respectively connected to three fourth ends. One first end of the switch units is connected in a one-to-one correspondence, the other first ends of the three fourth switch units are respectively connected with the three receiving modules in a one-to-one correspondence, and the second ends of the three fourth switch units are respectively connected with the antennas A2, A3 and A4 are connected in one-to-one correspondence; a first end of the second switch unit is connected to the second transceiver module, and the other first end of the second switch unit is connected to the other end of the first switch unit The second end is connected to the second end of the second switch unit, the other second end of the second switch unit is connected to the first end of the fifth switch unit, the second end of the fifth switch unit is connected to the antenna A5, and the fifth switch unit is connected to the antenna A5. The other three second ends of the switch units are respectively connected with a first end of the three sixth switch units in a one-to-one correspondence, and the other first ends of the three sixth switch units are respectively connected with the remaining three The receiving modules are connected in a one-to-one correspondence, and the second ends of the three sixth switch units are respectively connected with the antennas A6, A7, and A8.
The radio frequency system according to claim 3, wherein the radio frequency system supports dual-channel transmission, wherein the transceiver module includes a third transceiver module and a fourth transceiver module, and the radio frequency system further includes:

The third switch array is respectively connected with the radio frequency transceiver, the third transceiver module, the fourth transceiver module, each receiving module, and the four antennas, and the third switch array is used for the radio frequency transceiver. The preset receiving and transmission paths of each of the antennas are turned on under control, and the radio frequency paths between the third transceiver module and the two antennas are selectively turned on, and the fourth transceiver module is selectively turned on and the transmitting channel receiving modules between the remaining two antennas respectively, so that the radio frequency system can realize the 2T4R function of transmitting two transmitting signals in turn between the two antennas at the same time.
The radio frequency system according to claim 10, wherein the third switch array is further configured to selectively conduct transmission paths between the third transceiver module and the four antennas under the control of the radio frequency transceiver , to realize that the 2T4R function of the radio frequency system is compatible with the 1T4R function in which one transmission signal is transmitted in turn among the four antennas.
The radio frequency system according to claim 11, wherein the transceiver module further comprises a fifth transceiver module and a sixth transceiver module, and the radio frequency system further comprises:

The fourth switch array is respectively connected with the radio frequency transceiver, the fifth transceiver module, the sixth transceiver module, each receiving module, and the four antennas, and the fourth switch array is under the control of the radio frequency transceiver Conducting the preset receiving and transmitting paths of each of the antennas, selectively conducting the radio frequency paths between the fifth transceiver module and the two antennas respectively, and selectively conducting the sixth transceiver module to the respective antennas. The radio frequency path between the two antennas is left, so that the radio frequency system can realize the 2T4R function of transmitting two transmission signals simultaneously between the two antennas.
The radio frequency system according to claim 12, wherein the fourth switch array is further configured to selectively conduct transmission paths between the fifth transceiver module and the four antennas under the control of the radio frequency transceiver , so that the radio frequency system realizes the 2T4R function and is compatible with the 1T4R function in which one transmission signal is transmitted in turn among the four antennas.
The radio frequency system according to claim 12, wherein the third switch array is connected to the fourth switch array, and the third switch array and the fourth switch array are configured to conduct conduction under the control of the radio frequency transceiver. A transmission path between at least two transceiver modules in the third transceiver module, the fourth transceiver module, the fifth transceiver module and the sixth transceiver module and any one of the antennas is communicated.
The radio frequency system according to claim 14, wherein M is equal to eight, and the eight antennas are respectively denoted as antennas A1, A2, A3, A4, A5, A6, A7, and A8; the plurality of receiving modules include a first receiving module, a second receiving module module, a third receiving module and a fourth receiving module, wherein,

The third switch array includes a seventh switch unit, an eighth switch unit, a ninth switch unit and a tenth switch unit, and the fourth switch array includes an eleventh switch unit, a twelfth switch unit, and a thirteenth switch unit and the fourteenth switch unit, where,

A first end of the seventh switch unit is connected to the third transceiver module, another first end of the seventh switch unit is connected to a second end of the eleventh switch unit, and the first end of the seventh switch unit is connected to a second end of the eleventh switch unit. A second end of the seventh switch unit is connected to the antenna A1, the other second end of the seventh switch unit is connected to a first end of the eighth switch unit, and the other end of the eighth switch unit The first end is connected to the first receiving module, the second end of the eighth switch unit is connected to the antenna A2, and the second end of the seventh switch unit is connected to a first end of the ninth switch unit The other first end of the ninth switch unit is connected to the fourth transceiver module, the second end of the ninth switch unit is connected to the antenna A3, and the other first end of the ninth switch unit is connected to the antenna A3. The two ends are connected to a first end of the tenth switch unit, the other first end of the tenth switch unit is connected to the second receiving module, and the second end of the tenth switch unit is connected to the antenna A4 connect;

A first end of the eleventh switch unit is connected to the fifth transceiver module, and another first end of the eleventh switch unit is connected to another second end of the seventh switch unit, so The other second end of the eleventh switch unit is connected to the antenna A5, the other second end of the eleventh switch unit is connected to a first end of the twelfth switch unit, and the first end of the eleventh switch unit is connected to the antenna A5. The other first end of the twelve switch units is connected to the third receiving module, the second end of the twelfth switch unit is connected to the antenna A6, and the second end of the eleventh switch unit is connected to the antenna A6. A first end of the thirteenth switch unit is connected; the other first end of the thirteenth switch unit is connected to the fourth transceiver module, and a second end of the thirteenth switch unit is connected to the antenna A7 connected, the other second end of the thirteenth switch unit is connected to a first end of the fourteenth switch unit, and the other first end of the fourteenth switch unit is connected to the fourth receiving module, The second end of the fourteenth switch unit is connected to the antenna A8.
The radio frequency system according to claim 2, M=8, the number of the transceiver modules is one, each of the transceiver modules is correspondingly connected to two of the antennas, the number of the receiving modules is three, each The receiving module is correspondingly connected to two antennas, and the radio frequency transceiver is configured with eight receiving ports, wherein the receiving channel between each receiving port and each antenna is unique, wherein the radio frequency The transceiver is used to control the transceiver module to receive the radio frequency signal of any correspondingly connected antenna in time-sharing, and to control each of the receiving modules to time-division to receive the radio frequency signal of any correspondingly connected antenna, and to time-division the eight radio frequency signals received. Correspondingly output to the eight said receiving ports.
The radio frequency system according to claim 16, wherein the eight antennas are respectively denoted as antennas A1, A2, A3, A4, A5, A6, A7, and A8; the radio frequency system further comprises a fourth antenna connected to the radio frequency transceiver respectively. switch array and a fifth switch array, where,

The fourth switch array includes eight first ends and four second ends, wherein the eight first ends are respectively connected with the eight receiving ports in a one-to-one correspondence, and the four second ends are respectively connected with the eight receiving ports. The transceiver module and the three receiving modules are connected in one-to-one correspondence;

The fifth switch array includes four first ends and eight second ends, wherein the four first ends are respectively connected with the transceiver modules and the three receiving modules in a one-to-one correspondence, and the eight second ends The terminals are respectively connected with the antennas A1, A2, A3, A4, A5, A6, A7 and A8 in one-to-one correspondence.
The radio frequency system according to claim 17, wherein the fifth switch array is further configured to, under the control of the radio frequency transceiver, enable the radio frequency system to implement a transmission signal of one channel between four antennas in a target transceiver antenna group The 1T4R function that is sent.
An antenna switching method is applied to a radio frequency system, wherein the radio frequency system includes a receiving module, M antennas and a radio frequency transceiver, and the method includes:

The radio frequency transceiver stores configuration information of a preset receiving and transmission path of each of the antennas, wherein the radio frequency transceiver is configured with M ports, and the M antennas are connected through the receiving module in a one-to-one correspondence. M number of the ports to form a preset receive transmission path for each of the antennas; and

The radio frequency transceiver determines a target transceiver antenna group according to the radio frequency signal received by each of the ports, and the target transceiver antenna group includes N antennas, where 2≤N<M.
A customer premises equipment comprising a radio frequency system as claimed in any one of claims 1 to 18.