Network device, user terminal, chip, wireless communication system and method

Abstract

The embodiment of the invention provides network equipment, a user terminal, a chip, a wireless communication system and a method, the network equipment comprises a first processor, at least one first antenna and at least one second antenna, the first antenna and the second antenna are respectively coupled with the first processor, the first antenna works in a first sub-frequency band, and the second antenna works in a second sub-frequency band. The second antenna works in a second sub-frequency band, and the first sub-frequency band covers the radar frequency band; when the radar signal exists in the first sub-band, the communication signal is transmitted through the second antenna; and when the radar signal does not exist in the first sub-band, the communication signal is transmitted through the first antenna.

Description

[0001] This application is a divisional of the Chinese patent application submitted to the State Intellectual Property Office of China on November 26, 2020, with application number 202011354329.X and application name "Network equipment, user terminal, chip, wireless communication system and method". All the contents of this application are included in the parent case. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to a network device, a user terminal, a chip, a wireless communication system and a method. Background Art

[0003] With the development of wireless communication technology, wireless-fidelity (Wi-Fi) is increasingly widely used. The 2.4 Gigahertz (GHz) frequency band used by Wi-Fi networks is becoming increasingly crowded and cannot meet development needs. Currently, the 5GHz (5150MHz-5825MHz) frequency band has been opened up. Compared with the 2.4GHz frequency band, the 5GHz frequency band has a higher data transmission rate and a better user experience.

[0004] The channels in the Wi-Fi 5G frequency band cover dynamic frequency selection (DFS) channels and non-DFS channels. In order to prevent Wi-Fi devices working in the 5G frequency band from interfering with the radar system, Wi-Fi devices working in DFS channels need to support the DFS function to avoid radar signals. For example, before using the DFS channel, the Wi-Fi device needs to perform a channel availability check (CAC) to detect whether there is a radar signal on the DFS channel. If there is no radar signal, the DFS channel can be used. If the Wi-Fi device detects a radar signal while working on the DFS channel, it needs to switch channels to avoid interference with radar waves. In the process of switching to a new channel, the Wi-Fi device needs to stop transmitting signals on the original DFS channel and needs to reassociate on the new channel. During this process, the signal transmission of the Wi-Fi device is interrupted, and data services and other services are interrupted, resulting in the user terminal being unable to access the AP (access point, AP), and thus unable to access the network, affecting the user experience. Summary of the invention

[0005] The present application provides a network device, a user terminal, a chip, a wireless communication system and a method to solve the problem of signal transmission interruption during the channel switching process of a Wi-Fi device when radar signal interference occurs in the signal transmission channel.

[0006] In a first aspect, the present application provides a network device, including a first processor, at least one first antenna and at least one second antenna, wherein the first antenna and the second antenna are respectively coupled to the first processor, wherein the first antenna operates in a first sub-frequency band, the second antenna operates in a second sub-frequency band, and the first sub-frequency band covers a radar frequency band;

[0007] When there is a radar signal in the first sub-frequency band, the communication signal is transmitted through the second antenna;

[0008] When the radar signal does not exist in the first sub-frequency band, the communication signal is transmitted through the first antenna.

[0009] The first processor simultaneously controls the first antenna to operate on the first DFS channel of the first sub-frequency band and the second antenna to operate on the first channel of the second sub-frequency band. When a radar signal exists in the first DFS channel of the first sub-frequency band, the first processor can transfer the communication signal to the first channel of the second sub-frequency band for transmission. When no radar signal exists in the first DFS channel of the first sub-frequency band, the first processor can transmit the communication signal through the first DFS channel of the first sub-frequency band. Since the second antenna has been operating on the first channel of the second sub-frequency band before the radar signal appears in the first DFS channel of the first sub-frequency band, the first processor can directly transfer the communication signal transmitted on the first DFS channel of the first sub-frequency band to the first channel of the second sub-frequency band for transmission, thereby ensuring the continuity of the communication signal transmission.

[0010] In a possible design, when the radar signal exists in the first sub-frequency band, the channel where the first sub-frequency band is located is associated, so that re-association can be avoided when switching channels, saving time.

[0011] In a possible design, when the radar signal does not exist in the first sub-band, the first processor is configured to control the first antenna to operate in the second DFS (dynamic frequency selection) channel of the first sub-band, and to monitor the DFS channel of the first sub-band and the DFS channel of the second sub-band for radar signals; when a radar signal exists in the first sub-band, the first processor is configured to stop transmitting the communication signal through the first DFS channel of the second sub-band, and transfer the communication signal to the second DFS channel of the first sub-band for transmission, and the first channel is the first DFS channel of the second sub-band. Through the solution provided by this embodiment, when a radar signal appears in the first DFS channel of the second sub-band for communication signal transmission, the first processor can switch the communication signal to the second DFS channel of the first sub-band that is already operating for transmission, thereby avoiding the interruption of communication signal transmission.

[0012] In one possible design, when the radar signal does not exist in the first sub-band, the first processor is configured to control the first antenna to operate in the first non-DFS channel of the first sub-band, and to monitor the DFS channel of the second sub-band for radar signals; when a radar signal exists in the first sub-band, the first processor is configured to stop transmitting the communication signal through the first DFS channel of the second sub-band, and transfer the communication signal to the first non-DFS channel of the first sub-band for transmission, and the first channel is the first DFS channel of the second sub-band. Through the solution provided by this embodiment, when a radar signal appears in the first DFS channel of the second sub-band for communication signal transmission, the first processor can switch the communication signal to the first non-DFS channel of the already operating first sub-band for transmission, thereby avoiding interruption of signal transmission.

[0013] In a possible design, when the radar signal does not exist in the first sub-frequency band, the first processor is further configured to transmit the communication signal through the first DFS channel of the second sub-frequency band, and the first channel is the first DFS channel of the second sub-frequency band. Through the solution provided by this embodiment, when the radar signal does not exist in the first DFS channel of the first sub-frequency band, the first processor can select the first DFS channel of the first sub-frequency band and / or the first DFS channel of the second sub-frequency band to transmit the communication signal according to data transmission needs, so as to improve the transmission rate of the communication signal.

[0014] In one possible design, the first channel is a first non-DFS channel of the second sub-frequency band.

[0015] In one possible design, when the radar signal does not exist in the first sub-frequency band, the communication signal is also transmitted through the second antenna. Through the solution provided by this embodiment, the first processor transfers the signal to the first DFS channel of the first sub-frequency band that is already working for transmission, thereby avoiding interruption of signal transmission. Through the solution provided by this embodiment, when the radar signal does not exist in the first DFS channel of the first sub-frequency band, the first processor can select the first DFS channel of the first sub-frequency band and / or the first non-DFS channel of the second sub-frequency band to transmit the communication signal according to data transmission needs, so as to improve the transmission rate of the communication signal.

[0016] In one possible design, the first sub-frequency band includes the 5470MHz-5850MHz frequency band, and the second sub-frequency band includes the 5150MHz-5350MHz frequency band.

[0017] In a second aspect, the present application provides a user terminal, including a second processor, at least one third antenna and at least one fourth antenna, wherein the third antenna and the fourth antenna are respectively coupled to the second processor, wherein the third antenna operates in a first sub-frequency band, the fourth antenna operates in a second sub-frequency band, and the first sub-frequency band covers a radar frequency band;

[0018] When there is a radar signal in the first sub-frequency band, the communication signal is transmitted through the fourth antenna;

[0019] When the radar signal does not exist in the first sub-frequency band, the communication signal is transmitted through the third antenna and the fourth antenna.

[0020] The second processor simultaneously controls the third antenna to operate on the first DFS channel of the first sub-frequency band and the fourth antenna to operate on the first channel of the second sub-frequency band. When a radar signal exists in the first DFS channel of the first sub-frequency band, the second processor can transfer the communication signal to the first channel of the second sub-frequency band for transmission. When no radar signal exists in the first DFS channel of the first sub-frequency band, the second processor can transmit the communication signal through the first DFS channel of the first sub-frequency band. Since the fourth antenna has been operating on the first channel of the second sub-frequency band before the radar signal appears in the first DFS channel of the first sub-frequency band, the second processor can directly transfer the communication signal transmitted on the first DFS channel of the first sub-frequency band to the first channel of the second sub-frequency band for transmission, thereby ensuring the continuity of the communication signal transmission.

[0021] In a possible design, when the radar signal does not exist in the first sub-frequency band, the second processor is configured to control the third antenna to operate in the second DFS (dynamic frequency selection) channel of the first sub-frequency band; when a radar signal exists in the first sub-frequency band, the second processor is configured to stop transmitting the communication signal through the first DFS channel of the second sub-frequency band, and transfer the communication signal to the second DFS channel of the first sub-frequency band for transmission, and the first channel is the first DFS channel of the second sub-frequency band. Through the solution provided by this embodiment, when a radar signal appears in the first DFS channel of the second sub-frequency band for communication signal transmission, the second processor can switch the communication signal to the second DFS channel of the first sub-frequency band that is already operating for transmission, thereby avoiding the interruption of communication signal transmission.

[0022] In one possible design, when the radar signal does not exist in the first sub-band, the second processor is configured to control the third antenna to operate in the first non-DFS channel of the first sub-band; when the radar signal exists in the first sub-band, the second processor is configured to stop transmitting the communication signal through the first DFS channel of the second sub-band, and transfer the communication signal to the first non-DFS channel of the first sub-band for transmission, and the first channel is the first DFS channel of the second sub-band. Through the solution provided by this embodiment, when a radar signal appears in the first DFS channel of the second sub-band for communication signal transmission, the second processor can switch the communication signal to the first non-DFS channel of the already operating first sub-band for transmission, thereby avoiding interruption of signal transmission.

[0023] In a possible design, when the radar signal does not exist in the first sub-frequency band, the second processor is further configured to transmit the communication signal through the first DFS channel of the second sub-frequency band, and the first channel is the first DFS channel of the second sub-frequency band. Through the solution provided by this embodiment, when the radar signal does not exist in the first DFS channel of the first sub-frequency band, the second processor can select the first DFS channel of the first sub-frequency band and / or the first DFS channel of the second sub-frequency band to transmit the communication signal according to data transmission needs, so as to improve the transmission rate of the communication signal.

[0024] In one possible design, when there is no radar signal on the first DFS channel of the first sub-frequency band, the second processor is further configured to transmit the communication signal through the first non-DFS channel of the second sub-frequency band. Through the solution provided by this embodiment, when there is no radar signal on the first DFS channel of the first sub-frequency band, the second processor can select the first DFS channel of the first sub-frequency band and / or the first non-DFS channel of the second sub-frequency band to transmit the communication signal according to data transmission needs, so as to improve the transmission rate of the communication signal.

[0025] In a third aspect, the present application provides a wireless communication system, comprising the network device as described in the first aspect and the user terminal as described in the second aspect.

[0026] In a fourth aspect, the present application provides a wireless communication method, including:

[0027] Perform radar signal monitoring on the DFS channel in the first sub-frequency band and the DFS channel in the second sub-frequency band;

[0028] Control the first antenna to operate in the first DFS channel of the first sub-frequency band according to the monitoring result, and control the second antenna to operate in the first channel of the second sub-frequency band;

[0029] When a radar signal exists in the first DFS channel of the first sub-frequency band, transferring the communication signal to the first channel of the second sub-frequency band for transmission;

[0030] When there is no radar signal in the first DFS channel of the first sub-frequency band, the communication signal is transmitted through the first DFS channel of the first sub-frequency band.

[0031] In a fifth aspect, the present application provides a wireless communication method, including:

[0032] Controlling the first antenna to operate in a first DFS channel of a first sub-frequency band, and controlling the second antenna to operate in a first channel of a second sub-frequency band;

[0033] When a radar signal exists in the first DFS channel of the first sub-frequency band, transferring the communication signal to the first channel of the second sub-frequency band for transmission;

[0034] When there is no radar signal in the first DFS channel of the first sub-frequency band, the communication signal is transmitted through the first DFS channel of the first sub-frequency band.

[0035] The wireless communication method provided by the present application simultaneously controls the first antenna to operate on the first DFS channel of the first sub-frequency band and the second antenna to operate on the first channel of the second sub-frequency band. When a radar signal exists in the first DFS channel of the first sub-frequency band, the communication signal is transferred to the first channel of the second sub-frequency band for transmission. When no radar signal exists in the first DFS channel of the first sub-frequency band, the communication signal is transmitted through the first DFS channel of the first sub-frequency band. Since the second antenna has been operating on the first channel of the second sub-frequency band before the radar signal appears in the first DFS channel of the first sub-frequency band, the communication signal transmitted on the first DFS channel of the first sub-frequency band is directly transferred to the first channel of the second sub-frequency band for transmission, thereby ensuring the continuity of the communication signal transmission.

[0036] In one possible design, the first channel is a first DFS channel of the second sub-frequency band, and the method further includes:

[0037] When transferring the communication signal to the first DFS channel of the second sub-frequency band for transmission, controlling the first antenna to operate in the second DFS channel of the first sub-frequency band;

[0038] Performing radar signal monitoring on the DFS channel of the first sub-frequency band and the DFS channel of the second sub-frequency band;

[0039] When a radar signal exists in the first DFS channel of the second sub-frequency band, transmission of the communication signal through the first DFS channel of the second sub-frequency band is stopped, and the communication signal is transferred to the second DFS channel of the first sub-frequency band for transmission.

[0040] In one possible design, the first channel is a first DFS channel of the second sub-frequency band, and the method further includes:

[0041] When transferring the communication signal to the first DFS channel of the second sub-frequency band for transmission, controlling the first antenna to operate in the first non-DFS channel of the first sub-frequency band;

[0042] Performing radar signal monitoring on the DFS channel of the second sub-frequency band;

[0043] When a radar signal exists in the first DFS channel of the second sub-frequency band, transmission of the communication signal through the first DFS channel of the second sub-frequency band is stopped, and the communication signal is transferred to the first non-DFS channel of the first sub-frequency band for transmission.

[0044] In one possible design, the first channel is a first DFS channel of the second sub-frequency band, and the method further includes:

[0045] When there is no radar signal in the first DFS channel of the first sub-frequency band, the communication signal is transmitted through the first DFS channel of the second sub-frequency band.

[0046] In one possible design, the first channel is a first non-DFS channel of the second sub-frequency band, and the method further includes:

[0047] When there is no radar signal in the first DFS channel of the first sub-frequency band, the communication signal is transmitted through the first non-DFS channel of the second sub-frequency band.

[0048] In a sixth aspect, the present application further provides a wireless communication method, including:

[0049] Controlling the third antenna to operate in the first DFS channel of the first sub-frequency band, and controlling the fourth antenna to operate in the first channel of the second sub-frequency band;

[0050] When a radar signal exists in the first DFS channel of the first sub-frequency band, transferring the communication signal to the first channel of the second sub-frequency band for transmission;

[0051] When there is no radar signal in the first DFS channel of the first sub-frequency band, the communication signal is transmitted through the first DFS channel of the first sub-frequency band.

[0052] By simultaneously controlling the third antenna to operate on the first DFS channel of the first sub-frequency band and the fourth antenna to operate on the first channel of the second sub-frequency band, when a radar signal exists in the first DFS channel of the first sub-frequency band, the communication signal is transferred to the first channel of the second sub-frequency band for transmission; when no radar signal exists in the first DFS channel of the first sub-frequency band, the communication signal is transmitted through the first DFS channel of the first sub-frequency band; since the fourth antenna has been operating on the first channel of the second sub-frequency band before the radar signal appears in the first DFS channel of the first sub-frequency band, the communication signal transmitted on the first DFS channel of the first sub-frequency band can be directly transferred to the first channel of the second sub-frequency band for transmission, thereby ensuring the continuity of communication signal transmission.

[0053] In one possible design, the first channel is a first DFS channel of the second sub-frequency band, and the method further includes:

[0054] When transferring the communication signal to the first DFS channel of the second sub-frequency band for transmission, controlling the third antenna to operate in the second DFS channel of the first sub-frequency band;

[0055] When a radar signal exists in the first DFS channel of the second sub-frequency band, transmission of the communication signal through the first DFS channel of the second sub-frequency band is stopped, and the communication signal is transferred to the second DFS channel of the first sub-frequency band for transmission.

[0056] In one possible design, the first channel is a first DFS channel of the second sub-frequency band, and the method further includes:

[0057] When transferring the communication signal to the first DFS channel of the second sub-frequency band for transmission, controlling the third antenna to operate in the first non-DFS channel of the first sub-frequency band;

[0058] When a radar signal exists in the first DFS channel of the second sub-frequency band, transmission of the communication signal through the first DFS channel of the second sub-frequency band is stopped, and the communication signal is transferred to the first non-DFS channel of the first sub-frequency band for transmission.

[0059] In a seventh aspect, the present application provides a chip, including: a processor and an interface;

[0060] The interface is used to receive code instructions and transmit them to the processor;

[0061] The processor runs the code instructions to execute the wireless communication methods described in the fourth to sixth aspects.

[0062] In an eighth aspect, the present application provides a computer-readable storage medium, comprising instructions, which, when executed on a computer, enable the computer to execute the wireless communication method as described in aspects 4 to 6. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] Figure 1 A schematic diagram of communication between a wireless AP and a user terminal provided in an embodiment of the present application;

[0064] Figure 2 A principle block diagram of a wireless AP and a user terminal provided in an embodiment of the present application;

[0065] Figure 3 A principle block diagram of a wireless AP and a user terminal provided in another embodiment of the present application;

[0066] Figure 4 A schematic diagram of the association between a wireless AP and a user terminal provided in an embodiment of the present application;

[0067] Figure 5 A schematic diagram of the association between a wireless AP and a user terminal provided in another embodiment of the present application;

[0068] Figure 6 A schematic diagram of the association between a wireless AP and a user terminal provided in yet another embodiment of the present application;

[0069] Figure 7 A schematic diagram of the structure of a wireless AP provided in one embodiment of the present application;

[0070] Figure 8 A schematic diagram of the structure of a wireless AP provided in another embodiment of the present application;

[0071] Fig. 9 A schematic diagram of the structure of a wireless AP provided in another embodiment of the present application;

[0072] Fig.10 A schematic diagram of the structure of a wireless AP provided in another embodiment of the present application;

[0073] Fig.11 A schematic diagram of the structure of a wireless AP provided in another embodiment of the present application;

[0074] Fig.12 A flowchart of a wireless communication method provided by an embodiment of the present application;

[0075] Fig.13 A flowchart of a wireless communication method provided by another embodiment of the present application;

[0076] Fig.14 A flowchart of a wireless communication method provided in another embodiment of the present application;

[0077] Fig.15 A flowchart of a wireless communication method provided in another embodiment of the present application;

[0078] Fig.16 A flowchart of a wireless communication method provided in another embodiment of the present application;

[0079] Fig.17 A flowchart of a wireless communication method provided in another embodiment of the present application;

[0080] Fig.18 A flowchart of a wireless communication method provided in yet another embodiment of the present application. DETAILED DESCRIPTION

[0081] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0082] In the description of this application, unless otherwise clearly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" refers to two or more; the terms "coupled", "fixed", etc. should be understood in a broad sense, for example, "coupled" can be fixed coupling, detachable coupling, integral coupling, or electrical coupling; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0083] Before using the DFS channel, the Wi-Fi master device needs to perform CAC on the DFS channel to detect whether there is a radar signal on the DFS channel. If there is no radar signal, the DFS channel can be used. If the Wi-Fi master device detects a radar signal while working on the DFS channel, it must switch from the DFS channel to other channels within a specified time to avoid interference with radar waves, and will not use the DFS channel during the NOP (non-occupancy period). If no radar signal is detected, it can continue to be used. In the process of switching to a new channel, the Wi-Fi master device needs to stop transmitting signals on the original DFS channel and needs to re-associate on the new channel. During this process, the signal transmission of the Wi-Fi master device is interrupted, resulting in the user terminal being unable to access the access point (AP) and thus unable to access the network. Among them, the FCC (Federal Communications Commission) requires the CAC time to be 60 seconds, and the CE (Conformite Europeanenne) requires the CAC time for frequency bands other than 5600MHz-5650MHz to be 60 seconds, and the CAC time for the 5600MHz-5650MHz band to be 10 minutes. FCC and CE define the 5250MHz-5350MHz band and the 5470MHz-5725MHz band as DFS channel bands, and other bands as non-DFS channel bands. If the definition of DFS channels changes with regulations, the regulations shall prevail.

[0084] Please refer to Figure 1 The embodiment of the present application provides a wireless communication system, including network devices, such as a wireless access point (wireless AP) 10 and a user terminal 20. In some embodiments, the wireless access point can be a Wi-Fi main device, the wireless access point can be a router and other devices, and the user terminal 20 can be a station (STA), which can be fixed, mobile or portable. The station can be a smart phone, a tablet computer, a PDA, a laptop computer, a desktop computer, a mobile internet device (mobile internet devices, MID) or a wearable device (such as a smart watch, a smart bracelet, etc.). The wireless AP 10 can couple multiple user terminals 20, and the wireless AP 10 is used to provide wireless access services for the user terminal 20, allowing wireless devices such as the user terminal 20 to access.

[0085] The user terminal 20 is coupled with the wireless AP10 to access the network. The working channel of the user terminal 20 is determined by the wireless AP10, and the working channel of the user terminal 20 follows the working channel change of the wireless AP10. Specifically, the wireless AP10 starts working after power-on initialization. Generally, it needs to perform spectrum scanning to detect which interference sources are in its service area and determine which channels are interfered. Then the wireless AP10 selects a suitable Wi-Fi channel for communication according to the Wi-Fi channel set by the user, or based on its own Wi-Fi channel selection strategy and spectrum scanning results. Subsequently, the wireless AP10 sends a broadcast message to the user terminal 20 in the service area, and carries the identification information corresponding to the Wi-Fi channel selected by the wireless AP10 in the broadcast message to inform the user terminal 20 in the service area of ​​the wireless AP10. When the user terminal 20 receives the broadcast message, it can obtain the identification information corresponding to the Wi-Fi channel by parsing the broadcast message, and then know the Wi-Fi channel currently working on the wireless AP10, and determine the corresponding working frequency range of the Wi-Fi channel. The user terminal 20 sends an authentication request to the wireless AP 10, requesting to access the WLAN network provided by the wireless AP 10, and the authentication request carries a shared key. The wireless AP 10 authenticates the user terminal 20 according to the shared key, and after the authentication is successful, sends an authentication response to the user terminal 20. The user terminal 20 sends an association request to the wireless AP 10, requesting to associate with the WLAN network provided by the wireless AP 10. After the association is successful, the wireless AP 10 sends an association response to the user terminal 20. The user terminal 20 can then communicate data with the wireless AP 10 on the Wi-Fi channel selected by the wireless AP 10.

[0086] The wireless communication system may be a Wi-Fi device or other communication devices.

[0087] Please refer to Figure 2 The wireless AP 10 includes a first processor 11, at least one first antenna 13, and at least one second antenna 14. The first antenna 13 and the second antenna 14 are coupled to the first processor 11, respectively.

[0088] The first processor 11 may include one or more processing units, for example, the first processor 11 may include a controller, a baseband, and / or a radio frequency integrated circuit, etc. The controller may generate an operation control signal according to the instruction opcode and the timing signal to complete the control of fetching and executing instructions. A memory may be provided in the first processor 11 for storing instructions and data. In some embodiments, the memory in the first processor 11 includes a cache memory. The memory may store instructions or data that have just been used or recycled by the first processor 11. If the first processor 11 needs to use the instruction or data again, it may be directly called from the memory, thereby avoiding repeated access, reducing the waiting time of the first processor 11, and thus improving the efficiency of the system. In some embodiments, the memory may also be provided outside the first processor 11 and coupled to the first processor 11.

[0089] The first processor 11 may modulate the signal according to wireless communication technology. The wireless communication technology may include wireless local area networks (WLAN) (such as wireless fidelity (Wi-Fi) networks), Bluetooth (BT), global navigation satellite system (GNSS), frequency modulation (FM), near field communication (NFC), infrared technology (IR), etc.

[0090] The first antenna 13 is used to transmit and receive electromagnetic wave signals (radio frequency signals, such as Wi-Fi signals). The first antenna 13 or multiple groups of antennas can be used to cover a single or multiple communication frequency bands. The multiple antennas can be one or more of a multi-frequency antenna, an array antenna, or an on-chip antenna.

[0091] The first processor 11 is coupled to the first antenna 13 to implement various functions associated with transmitting and receiving radio frequency signals. For example, when the electronic device transmits a signal, the baseband synthesizes the data to be transmitted (digital signal) into the baseband signal to be transmitted, and the baseband signal is converted by the radio frequency integrated circuit into a transmission signal (radio frequency signal). The transmission signal is amplified by the power amplifier, and the amplified output signal output by the power amplifier is transmitted to the switch and transmitted through the first antenna. The path of the transmission signal from the first processor to the switch is the first transmission path (or the first transmission path). When the electronic device needs to receive a signal, the first antenna 13 sends the received signal (radio frequency signal) to the switch, and the switch sends the radio frequency signal to the radio frequency integrated circuit. The radio frequency integrated circuit processes the radio frequency signal into a baseband signal and sends it to the baseband. The baseband converts the processed baseband signal into data and sends it to the corresponding application processor. The path of the radio frequency signal from the switch to the first processor 11 is the first receiving path (or the first receiving path). The port coupled to the first transmission path in the first processor 11 is the transmitting port TX, and the port coupled to the first receiving path in the first processor 110 is the receiving port RX.

[0092] The second antenna 14 is used to transmit and receive electromagnetic wave signals (radio frequency signals, such as Wi-Fi signals). The second antenna 14 or multiple groups of antennas can be used to cover a single or multiple communication frequency bands. The multiple antennas can be one or more of a multi-frequency antenna, an array antenna, or an on-chip antenna.

[0093] The first processor 11 is coupled to the second antenna 14 to implement various functions associated with transmitting and receiving radio frequency signals. For example, when the electronic device transmits a signal, the baseband synthesizes the data to be transmitted (digital signal) into the baseband signal to be transmitted, and the baseband signal is converted by the radio frequency integrated circuit into a transmission signal (radio frequency signal). The transmission signal is amplified by the power amplifier, and the amplified output signal output by the power amplifier is transmitted to the switch and transmitted through the second antenna 14. The path of the transmission signal from the first processor 11 to the switch is the second transmission path (or the second transmission path). When the electronic device needs to receive a signal, the second antenna 14 sends the received signal (radio frequency signal) to the switch, and the switch sends the radio frequency signal to the radio frequency integrated circuit. The radio frequency integrated circuit processes the radio frequency signal into a baseband signal and sends it to the baseband. The baseband converts the processed baseband signal into data and sends it to the corresponding application processor. The path of the radio frequency signal from the switch to the first processor 11 is the second receiving path (or the second receiving path). The port coupled to the second transmission path in the first processor 11 is the transmitting port TX, and the port coupled to the second receiving path in the first processor 11 is the receiving port RX.

[0094] At the same time, the first antenna 13 operates in the first sub-band, and the second antenna 14 operates in the second sub-band. The first sub-band and the second sub-band are different sub-bands. Specifically, the first sub-band may include a DFS channel and a non-DFS channel, and the second sub-band may not include a DFS channel. Alternatively, the first sub-band may include a DFS channel and a non-DFS channel, and the second sub-band may also include a DFS channel and a non-DFS channel. In some embodiments, the first sub-band may include at least one first non-DFS channel, and the second sub-band may include at least one second non-DFS channel, wherein part of the first sub-band may overlap with part of the second sub-band, for example, the first sub-band and the second sub-band both include the same DFS channel, and the first sub-band and the second sub-band overlap at the DFS channel. For example, part of the first non-DFS channel overlaps with part of the second non-DFS channel, that is, part of the first non-DFS channel and part of the second non-DFS channel are located in the same frequency band. In some embodiments, the first sub-band may include at least one first non-DFS channel, and the second sub-band may include at least one second non-DFS channel. In addition, only the first sub-band may include a DFS channel, or only the second sub-band may include a DFS channel. In some embodiments, the first sub-band and the second sub-band may include different DFS channels, for example, the first sub-band includes at least one first non-DFS channel and a first DFS channel, and the second sub-band includes at least one second non-DFS channel and a second DFS channel, wherein the first DFS channel may be completely different from the frequency band of the second DFS channel, or the first DFS channel may be the same as part of the frequency band of the second DFS channel. By setting the channel range coverage by the first sub-band and the second sub-band, different antennas or different paths cover a more suitable range, and a suitable antenna or path can be conveniently selected for signal communication (Wi-Fi communication) to ensure the continuity of communication.

[0095] The first processor 11 can control the first antenna 13 and the second antenna 14 to work in an available frequency band, and can also simultaneously monitor the DFS channel of the first sub-band and the DFS channel of the second sub-band for radar signals. Specifically, the wireless AP 10 starts working after power-on initialization, and the first processor 11 monitors the DFS channel of the first sub-band and the DFS channel of the second sub-band for radar signals. The first processor 11 is configured to control the first antenna 13 to work on the first DFS channel of the first sub-band and the second antenna 14 to work on the first channel of the second sub-band according to the monitoring result. It can be understood that the first processor 11 selects the first DFS channel of the first sub-band and the first channel of the second sub-band where there is no radar signal to work according to the monitoring result. When the first antenna 13 works on the first DFS channel of the first sub-band and the second antenna 14 works on the first channel of the second sub-band, the first processor 11 continues to monitor the DFS channel of the first sub-band and the DFS channel of the second sub-band for radar signals. When there is a radar signal in the first DFS channel of the first sub-frequency band, the first processor 11 is configured to transfer the communication signal to the first channel of the second sub-frequency band for transmission. When there is no radar signal in the first DFS channel of the first sub-frequency band, the first processor 11 is configured to transmit the communication signal through the first DFS channel of the first sub-frequency band.

[0096] The DFS channels of the first sub-frequency band may be all DFS channels of the first sub-frequency band, and the DFS channels of the second sub-frequency band may be all DFS channels of the second sub-frequency band.

[0097] The first channel may be a first DFS channel of the second sub-band.

[0098] In some embodiments, when the first processor 11 transfers the communication signal to the first DFS channel of the second sub-band for transmission, the first processor 11 is configured to control the first antenna 13 to operate on the second DFS channel of the first sub-band, and to monitor the DFS channel of the first sub-band and the DFS channel of the second sub-band for radar signals; when there is a radar signal on the first DFS channel of the second sub-band, the first processor 11 is configured to stop transmitting the communication signal through the first DFS channel of the second sub-band, and transfer the communication signal to the second DFS channel of the first sub-band for transmission. Since the wireless AP 10 operates on the first DFS channel of the second sub-band and the second DFS channel of the first sub-band at the same time, when a radar signal appears on the first DFS channel of the second sub-band for communication signal transmission, the first processor 11 can switch the communication signal to the second DFS channel of the first sub-band that is already operating for transmission, thereby avoiding the interruption of communication signal transmission.

[0099] In some embodiments, when the first processor 11 transfers the communication signal to the first DFS channel of the second sub-band for transmission, the first processor 11 is configured to control the first antenna to operate on the first non-DFS channel of the first sub-band, and to monitor the DFS channel of the second sub-band for radar signals. When there is a radar signal on the first DFS channel of the second sub-band, the first processor 11 is configured to stop transmitting the communication signal through the first DFS channel of the second sub-band, and transfer the communication signal to the first non-DFS channel of the first sub-band for transmission. Since the wireless AP 10 operates on the first non-DFS channel of the first sub-band and the first DFS channel of the second sub-band at the same time, when a radar signal appears on the first DFS channel of the second sub-band for communication signal transmission, the first processor 11 can switch the communication signal to the first non-DFS channel of the already operating first sub-band for transmission, thereby avoiding interruption of signal transmission.

[0100] In some embodiments, when there is no radar signal on the first DFS channel of the first sub-frequency band, the first processor 11 is further configured to transmit the communication signal through the first DFS channel of the second sub-frequency band. That is, when there is no radar signal on the first DFS channel of the first sub-frequency band, the first processor 11 can transmit the communication signal through the first DFS channel of the first sub-frequency band, or can transmit the communication signal through the first DFS channel of the second sub-frequency band. When there is no radar signal on the first DFS channel of the first sub-frequency band, the first processor 11 can select the first DFS channel of the first sub-frequency band and / or the first DFS channel of the second sub-frequency band to transmit the communication signal according to data transmission needs, so as to improve the transmission rate of the communication signal.

[0101] The first channel may also be a first non-DFS channel of the second sub-band.

[0102] In some embodiments, when there is no radar signal on the first DFS channel of the first sub-frequency band, the first processor 11 is further configured to transmit the communication signal through the first non-DFS channel of the second sub-frequency band. That is to say, when there is no radar signal in the first DFS channel of the first sub-frequency band, the first processor 11 can transmit the communication signal through the first DFS channel of the first sub-frequency band, and can also transmit the communication signal through the first non-DFS channel of the second sub-frequency band. At this time, the first communication signal can be transmitted through the first antenna 13, and the second communication signal can be transmitted through the second antenna 14. The first communication signal and the second communication signal can be different data streams in a MIMO (Multiple-Input Multiple-Output) scenario. In addition, when multiple first antennas 13 are included, each first antenna 13 can also transmit different data streams in a MIMO (Multiple-Input Multiple-Output) scenario, and different first antennas 13 can all support the first sub-frequency band; when multiple second antennas 14 are included, each second antenna 14 can also transmit different data streams in a MIMO (Multiple-Input Multiple-Output) scenario, and different second antennas 14 can all support the second sub-frequency band. When there is no radar signal in the first DFS channel of the first sub-frequency band, the first processor 11 may select the first DFS channel of the first sub-frequency band and / or the first non-DFS channel of the second sub-frequency band to transmit the communication signal according to data transmission requirements to increase the transmission rate of the communication signal.

[0103] Since there is no radar signal on the non-DFS channel, the first processor 11 does not need to monitor the radar signal on the non-DFS channel.

[0104] The first DFS channel of the first sub-band, the first DFS channel of the second sub-band and the second DFS channel of the first sub-band are different DFS channels, and the first DFS channel, the first non-DFS channel of the first sub-band and the first non-DFS channel of the second sub-band can be the same or different non-DFS channels.

[0105] The first sub-frequency band may be a 5470MHz-5850MHz frequency band, and the second sub-frequency band may be a 5150MHz-5350MHz frequency band. The first sub-frequency band and the second sub-frequency band may also be other Wi-Fi frequency bands.

[0106] In the wireless access point of the embodiment of the present application, the first processor 11 simultaneously controls the first antenna 13 to operate on the first DFS channel of the first sub-frequency band and the second antenna 14 to operate on the first channel of the second sub-frequency band. When there is a radar signal in the first DFS channel of the first sub-frequency band, the first processor 11 can transfer the communication signal to the first channel of the second sub-frequency band for transmission. When there is no radar signal in the first DFS channel of the first sub-frequency band, the first processor 11 can transmit the communication signal through the first DFS channel of the first sub-frequency band. Since the second antenna 14 has been operating on the first channel of the second sub-frequency band before the radar signal appears in the first DFS channel of the first sub-frequency band, the first processor 11 can directly transfer the communication signal transmitted on the first DFS channel of the first sub-frequency band to the first channel of the second sub-frequency band for transmission, thereby ensuring the continuity of the communication signal transmission.

[0107] Please refer to Figure 3 In one embodiment, the wireless AP 10 further includes a first bandpass filter 15 and a second bandpass filter 16. The number of the first bandpass filters 15 corresponds one-to-one to the number of the first antennas 13, and the number of the second bandpass filters 16 corresponds one-to-one to the number of the second antennas 14. The first bandpass filter 15 is coupled between the corresponding first antenna 13 and the first processor 11. The second bandpass filter 16 is coupled between the corresponding second antenna 14 and the first processor 11. The first bandpass filter 15 is used to filter the communication signal transmitted by the first antenna 13. The second bandpass filter 16 is used to filter the communication signal transmitted by the second antenna 14. The first bandpass filter 15 and the second bandpass filter 16 can isolate the communication signals transmitted by the first antenna 13 and the second antenna 14 from each other to avoid mutual interference.

[0108] Since the first processor 11 can perform CAC on the DFS channel of the first sub-frequency band and the DFS channel of the second sub-frequency band at the same time, the first processor 11 can perform CAC on the DFS channel of the first sub-frequency band and the DFS channel of the second sub-frequency band in advance before the communication signal transmission channel is switched, so that the first processor 11 can directly transfer the communication signal to the radar-free channel for transmission without waiting for the CAC cycle.

[0109] Please refer to Figure 4 In one embodiment, the first processor 11 detects signals received by one or more first antennas 13 to detect whether there is a radar signal in the DFS channel of the first sub-frequency band. The first processor 11 also detects signals received by one or more second antennas 14 to detect whether there is a radar signal in the DFS channel of the second sub-frequency band.

[0110] Specifically, the first processor 11 includes at least one first transceiver unit 111 and at least one second transceiver unit 112, and the first transceiver unit 111 is coupled to the first antenna 13. The second transceiver unit 112 is coupled to the second antenna 14. The first transceiver unit 111 and the second transceiver unit 112 are used to receive and send signals. The first transceiver unit 111 also detects the received signal to monitor whether there is a radar signal in the DFS channel of the first sub-frequency band. The second transceiver unit 112 also detects the received signal to monitor whether there is a radar signal in the DFS channel of the second sub-frequency band.

[0111] The first transceiver unit 111 performs CAC on the signal received by the first antenna 13 during an idle period when no data transmission is required, and the second transceiver unit 112 performs CAC on the signal received by the second antenna 14 during an idle period when no data transmission is required. Therefore, by time-division multiplexing the first antenna 13 and the second antenna 14, the cost of CAC for the DFS channel by the wireless AP 10 can be greatly reduced.

[0112] Please refer to Figure 5 In one embodiment, the first processor 11 further includes at least one first transceiver unit 113, at least one second transceiver unit 114, a first DFS receiving unit 115, a second DFS transceiver unit 116, at least one first matching unit 117, and at least one second matching unit 118. The first DFS receiving unit 115 and the first transceiver unit 113 are coupled to the first antenna 13 through the first matching unit 117, and the second DFS transceiver unit 116 and the second transceiver unit 114 are coupled to the second antenna 14 through the second matching unit 118. The first transceiver unit 113 and the second transceiver unit 114 are used to receive and send signals. Through the first matching unit 117, the first DFS receiving unit 115 and one of the first transceiver units 113 share the same first antenna 13, and through the second matching unit 118, the second DFS transceiver unit 116 and one of the second transceiver units 114 share the same second antenna 14, so that the data transmission throughput of the wireless AP 10 can be guaranteed and the cost of the wireless AP 10 performing CAC on the DFS channel can be reduced. The first DFS receiving unit 115 may scan the DFS channel of the first sub-frequency band to detect whether there is a radar signal in the DFS channel of the first sub-frequency band. The second DFS transceiver unit 116 may scan the DFS channel of the second sub-frequency band to detect whether there is a radar signal in the DFS channel of the second sub-frequency band. The first matching unit 117 may be a switch or a coupler, and the second matching unit 118 may be a switch or a coupler.

[0113] Please refer to Figure 6In one embodiment, the wireless AP 10 further includes a fifth antenna 17. The first processor 11 further includes at least one first transceiver unit 101, at least one second transceiver unit 102 and a DFS receiving unit 103. The fifth antenna 17 is coupled to the DFS receiving unit 103. The first transceiver unit 101 is coupled to the first antenna 13. The second transceiver unit 102 is coupled to the second antenna 14. The first transceiver unit 101 and the second transceiver unit 102 are used to receive and send signals. The DFS receiving unit 103 detects the signal received by the fifth antenna 17 to monitor whether there is a radar signal on the DFS channel of the first sub-frequency band and the DFS channel of the second sub-frequency band.

[0114] The first processor 11 can control the fifth antenna 17 to operate in the first sub-band and the second sub-band, and control the fifth antenna 17 to receive signals in the first sub-band and the second sub-band. The first processor 11 detects the signal received by the fifth antenna 17, so that CAC can be performed on the DFS channel of the first sub-band and the DFS channel of the second sub-band.

[0115] By adopting the fifth antenna 17 to perform CAC on the DFS channel of the first sub-frequency band and the DFS channel of the second sub-frequency band, it is possible to avoid the problem of data communication interruption of wireless AP10 due to the need to perform CAC on the DFS channel of the first sub-frequency band and the DFS channel of the second sub-frequency band during the communication signal transmission channel switching process, and the transmission throughput rate of wireless AP10 can be guaranteed.

[0116] The first processor 11 may also include more or fewer components, or a combination of certain components, or different component arrangements. For example, it may further include other interfaces, as well as components or circuits for implementing functions such as storage. Alternatively, the functions of the first processor 11 may be implemented by multiple chips, such as the baseband part may be implemented by another chip, and the radio frequency may be split into 2.4G radio frequency, 5G radio frequency, etc. In addition, the number of the first antenna 13, the first bandpass filter 15, the second antenna 14, and the second bandpass filter 16 included in the wireless AP 10 may be adjusted according to actual conditions during specific implementation, and there is no limitation on this.

[0117] Please refer to Figure 7In one embodiment, the wireless AP 10 further includes a first RF front-end module FEM1 and a second RF front-end module FEM2. The number of the first RF front-end modules FEM1 corresponds one-to-one to the number of the first antennas 13, and the number of the second RF front-end modules FEM2 corresponds one-to-one to the number of the second antennas 14. The first RF front-end module FEM1 is coupled between the first processor 11 and the first bandpass filter 15, and is used to amplify and process the communication signal transmitted by the first antenna 13 to improve the transmission rate and transmission distance of the communication signal by the first antenna 13. The second RF front-end module FEM2 is coupled between the first processor 11 and the second bandpass filter 16, and is used to amplify and process the communication signal transmitted by the second antenna 14 to improve the transmission rate and transmission distance of the communication signal by the second antenna 14.

[0118] The wireless AP10 also includes a combiner DPL and a third RF front-end module FEM3. The number of combiners DPL corresponds to the number of third RF front-end modules FEM3. The combiner DPL can be coupled between the first antenna 13 and the first bandpass filter 15, and the third RF front-end module FEM3 is coupled to the combiner DPL and the first processor 11 respectively. Through the combiner DPL, the first antenna 13 can also be used to send and receive signals in the first frequency band, which not only saves the use of the antenna, but also avoids the trouble of switching antennas. The third RF front-end module FEM3 is used to amplify and process the communication signal transmitted by the first antenna 13 to improve the transmission rate and transmission distance of the first antenna 13 for the communication signal.

[0119] In this embodiment, the number of first processors 11 is three, and each first processor 11 is respectively coupled to the first RF front-end module FEM1, the second RF front-end module FEM2 and the third RF front-end module FEM3. That is to say, the number of first processors 11 can be set according to the number of RF paths, which is not limited here.

[0120] Please refer to Figure 8 The combiner DPL can also be coupled between the second antenna 14 and the second bandpass filter 16, and the third RF front-end module FEM3 is respectively coupled to the combiner DPL and the first processor 11. The second antenna 14 can also be used to transmit and receive signals in the first frequency band, thereby not only saving the use of antennas, but also avoiding the trouble of switching antennas.

[0121] In this embodiment, the number of the first processors 11 is three, and the first RF front-end module FEM1 , the second RF front-end module FEM2 , and the third RF front-end module FEM3 are coupled to one first processor 11 respectively.

[0122] The combiner DPL may be a dual-frequency combiner, a triple-frequency combiner, a quad-frequency combiner or other multi-frequency combiners.

[0123] Please refer to Fig. 9 In one embodiment, the wireless AP 10 may further include a sixth antenna 18 and a third RF front-end module FEM3. The number of the sixth antennas 18 corresponds to the number of the third RF front-end modules FEM3. The third RF front-end module FEM3 is coupled between the corresponding sixth antenna 18 and the first processor 11, thereby avoiding the trouble of switching antennas. The third RF front-end module FEM3 is used to amplify and process the communication signal transmitted by the sixth antenna 18 to improve the transmission rate and transmission distance of the communication signal by the sixth antenna 18.

[0124] In this embodiment, the number of the first processors 11 is three, and the first RF front-end module FEM1 , the second RF front-end module FEM2 , and the third RF front-end module FEM3 are coupled to one first processor 11 respectively.

[0125] Please refer to Fig.10 In one embodiment, the first antenna 13 can be used to transmit and receive signals in the first frequency band and the second frequency band, and the second antenna 14 can be used to transmit and receive signals in the first frequency band and the second frequency band. A combiner DPL1 is set between the first RF front-end module FEM1 and the third RF front-end module FEM3 and the first antenna 13, and a combiner DPL2 is set between the second RF front-end module FEM2 and the third RF front-end module FEM3 and the second antenna 14, thereby saving the use of antennas and avoiding the trouble of switching antennas.

[0126] The first frequency band and the second frequency band may be frequency bands corresponding to 2G, 3G, 4G or 5G.

[0127] The first antenna 13 or the second antenna 14 may also be used to receive a GPS (Global Positioning System) signal. The GPS signal received by the first antenna 13 or the second antenna 14 may be transmitted to the first processor 11 in sequence through a combiner, a filter and a low noise amplifier U1.

[0128] The combiner DPL1 and the combiner DPL2 may be a dual-frequency combiner, a triple-frequency combiner, a quad-frequency combiner or other multi-frequency combiners.

[0129] Please refer to Fig.11 The combiner DPL1 can also be replaced by a single-pole multi-throw switch S1, and the combiner DPL2 can also be replaced by a single-pole multi-throw switch S2. The first processor 11 switches the RF path by switching the single-pole multi-throw switches S1 and S2. The combiner can also use other devices that can achieve RF path switching, which is not limited here.

[0130] It should be noted that the radio frequency path includes a transmitting path and a receiving path.

[0131] The embodiment of the present application does not limit the structure and composition of the first RF front-end module FEM1, the second RF front-end module FEM2, and the third RF front-end module FEM3, and any RF front-end module in the prior art may be adopted.

[0132] Those skilled in the art can understand that the RF front-end module structure shown in the figure does not constitute a limitation on the RF front-end module. The RF front-end module may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently. For example, when the wireless AP10 does not need to improve the transmission capability of a certain antenna, an RF front-end module that does not include a power amplifier can be coupled to the antenna. When the above-mentioned wireless AP10 does not need to improve the receiving capability of a certain antenna, an RF front-end module that does not include a low-noise amplifier can be coupled to the antenna.

[0133] Please refer to Figure 2 The user terminal 20 includes a second processor 21, at least one third antenna 22, and at least one fourth antenna 23. The third antenna 22 and the fourth antenna 23 are coupled to the second processor 21, respectively.

[0134] The second processor 21 may include one or more processing units, for example, the second processor 21 may include a controller, a baseband, and / or a radio frequency integrated circuit, etc. The controller may generate an operation control signal according to the instruction opcode and the timing signal to complete the control of fetching and executing instructions. A memory may be provided in the second processor 21 for storing instructions and data. In some embodiments, the memory in the second processor 21 includes a cache memory. The memory may store instructions or data that have just been used or recycled by the second processor 21. If the second processor 21 needs to use the instruction or data again, it may be directly called from the memory. Repeated access is avoided, the waiting time of the second processor 21 is reduced, and the efficiency of the system is improved. In some embodiments, the memory may also be provided outside the second processor 21 and coupled to the second processor 21.

[0135] The second processor 21 can modulate the signal according to the wireless communication technology. The wireless communication technology may include wireless local area networks (WLAN) (such as wireless fidelity (Wi-Fi) network), Bluetooth (BT), global navigation satellite system (GNSS), frequency modulation (FM), near field communication (NFC), infrared technology (IR), etc.

[0136] The third antenna 22 is used to transmit and receive electromagnetic wave signals (radio frequency signals, such as Wi-Fi signals). The third antenna 22 or multiple groups of antennas can be used to cover a single or multiple communication frequency bands. The multiple antennas can be one or more of a multi-frequency antenna, an array antenna, or an on-chip antenna.

[0137] The second processor 21 is coupled to the third antenna 22 to implement various functions associated with transmitting and receiving radio frequency signals. For example, when the electronic device transmits a signal, the baseband synthesizes the data to be transmitted (digital signal) into the baseband signal to be transmitted, and the baseband signal is converted by the radio frequency integrated circuit into a transmission signal (radio frequency signal). The transmission signal is amplified by the power amplifier, and the amplified output signal output by the power amplifier is transmitted to the switch and transmitted through the third antenna 22. The path of the transmission signal from the second processor 21 to the switch is the third transmission path (or the third transmission path). When the electronic device needs to receive a signal, the third antenna 22 sends the received signal (radio frequency signal) to the switch, and the switch sends the radio frequency signal to the radio frequency integrated circuit. The radio frequency integrated circuit 102 processes the radio frequency signal into a baseband signal and sends it to the baseband. The baseband converts the processed baseband signal into data and sends it to the corresponding application processor. The path of the radio frequency signal from the switch to the second processor 21 is the third receiving path (or the third receiving path). The port coupled to the third transmission path in the second processor 21 is the transmitting port TX, and the port coupled to the third receiving path in the second processor 21 is the receiving port RX.

[0138] The fourth antenna 23 is used to transmit and receive electromagnetic wave signals (radio frequency signals, such as Wi-Fi signals). The fourth antenna 23 or multiple groups of antennas can be used to cover a single or multiple communication frequency bands. The multiple antennas can be one or more of a multi-frequency antenna, an array antenna, or an on-chip antenna.

[0139] The second processor 21 is coupled to the fourth antenna 23 to implement various functions associated with transmitting and receiving radio frequency signals. For example, when the electronic device transmits a signal, the baseband synthesizes the data to be transmitted (digital signal) into the baseband signal to be transmitted, and the baseband signal is converted by the radio frequency integrated circuit into a transmission signal (radio frequency signal). The transmission signal is amplified by the power amplifier, and the amplified output signal output by the power amplifier is transmitted to the switch and transmitted through the fourth antenna 23. The path of the transmission signal from the second processor 21 to the switch is the fourth transmission path (or the fourth transmission path). When the electronic device needs to receive a signal, the fourth antenna 23 sends the received signal (radio frequency signal) to the switch, and the switch sends the radio frequency signal to the radio frequency integrated circuit. The radio frequency integrated circuit processes the radio frequency signal into a baseband signal and sends it to the baseband. The baseband converts the processed baseband signal into data and sends it to the corresponding application processor. The path of the radio frequency signal from the switch to the second processor 21 is the fourth receiving path (or the fourth receiving path). The port coupled to the fourth transmission path in the second processor 21 is the transmitting port TX, and the port coupled to the fourth receiving path in the second processor 21 is the receiving port RX.

[0140] At the same time, the third antenna 22 and the fourth antenna 23 work in different sub-bands. At the same time, the first antenna 13 and the third antenna 22 work in the same sub-band, and the second antenna 14 and the fourth antenna 23 work in another sub-band, for example, the first antenna 13 and the third antenna 22 work in the first sub-band, and the second antenna 14 and the fourth antenna 23 work in the second sub-band.

[0141] The second processor 21 is configured to control the third antenna 22 to operate in the first DFS channel of the first sub-frequency band, and to control the fourth antenna 23 to operate in the first channel of the second sub-frequency band.

[0142] The wireless AP10 carries the identification information corresponding to the first DFS channel of the first sub-frequency band and the identification information corresponding to the first channel of the second sub-frequency band in the broadcast message, and broadcasts it to the user terminal 20. The user terminal 20 receives the broadcast message, and obtains the identification information corresponding to the first DFS channel of the first sub-frequency band and the identification information corresponding to the first channel of the second sub-frequency band by parsing the broadcast message, thereby knowing the first DFS channel of the first sub-frequency band currently working on the wireless AP10 and the first channel of the second sub-frequency band, and determines the corresponding working frequency range of the first DFS channel of the first sub-frequency band and the corresponding working frequency range of the first channel of the second sub-frequency band. The user terminal 20 sends an authentication request to the wireless AP10, requesting to access the WLAN network provided by the wireless AP10, and the authentication request carries a shared secret key. The wireless AP10 authenticates the user terminal 20 according to the shared secret key, and after the authentication is passed, sends an authentication response to the user terminal 20. The user terminal 20 sends an association request to the wireless AP10, requesting to associate with the WLAN network provided by the wireless AP10. After successful association, the wireless AP 10 sends an association response to the user terminal 20 , so that the user terminal 20 and the wireless AP 10 establish an association in the first DFS channel of the first sub-frequency band, and simultaneously establish an association in the first channel of the second sub-frequency band.

[0143] When there is a radar signal on the first DFS channel of the first sub-frequency band, the second processor 21 is configured to transfer the communication signal to the first channel of the second sub-frequency band for transmission. When the first processor 11 detects that there is a radar signal on the first DFS channel of the first sub-frequency band, the wireless AP10 broadcasts a message that there is a radar signal on the first DFS channel of the first sub-frequency band to the user terminal 20, so that the second processor 21 transfers the communication signal to the first channel of the second sub-frequency band for transmission. When there is no radar signal on the first DFS channel of the first sub-frequency band, the second processor 21 is configured to transmit the communication signal through the first DFS channel of the first sub-frequency band. When the first processor 11 detects that there is no radar signal on the first DFS channel of the first sub-frequency band, the wireless AP10 may also broadcast a message that there is no radar signal on the first DFS channel of the first sub-frequency band to the user terminal 20, and the second processor 21 transmits the communication signal through the first DFS channel of the first sub-frequency band.

[0144] The first channel may be a first DFS channel of the second sub-band.

[0145] In some embodiments, when the second processor 21 transfers the communication signal to the first DFS channel of the second sub-frequency band for transmission, the second processor 21 is configured to control the third antenna 22 to operate on the second DFS channel of the first sub-frequency band. When there is a radar signal on the first DFS channel of the second sub-frequency band, the second processor 21 is configured to stop transmitting the communication signal through the first DFS channel of the second sub-frequency band, and transfer the communication signal to the second DFS channel of the first sub-frequency band for transmission. When the first processor 11 transfers the communication signal to the first DFS channel of the second sub-frequency band for transmission and the second processor 21 transfers the communication signal to the first DFS channel of the second sub-frequency band for transmission, the wireless AP 10 broadcasts a message of selecting the second DFS channel of the first sub-frequency band to operate to the user terminal 20, so that the second processor 21 controls the third antenna 22 to operate on the second DFS channel of the first sub-frequency band to establish an association with the wireless AP 10 on the second DFS channel of the first sub-frequency band. Since the user terminal 20 works on the first DFS channel of the second sub-frequency band and the second DFS channel of the first sub-frequency band at the same time, when a radar signal appears on the first DFS channel of the second sub-frequency band for communication signal transmission, the second processor 21 can switch the communication signal to the second DFS channel of the first sub-frequency band that is already working for transmission, thereby avoiding interruption of communication signal transmission.

[0146] In some embodiments, when the second processor 21 transfers the communication signal to the first DFS channel of the second sub-frequency band for transmission, the second processor 21 is configured to control the third antenna 22 to operate on the first non-DFS channel of the first sub-frequency band; when there is a radar signal on the first DFS channel of the second sub-frequency band, the second processor 21 is configured to stop transmitting the communication signal through the first DFS channel of the second sub-frequency band, and transfer the communication signal to the first non-DFS channel of the first sub-frequency band for transmission. When the first processor 11 transfers the communication signal to the first DFS channel of the second sub-frequency band for transmission and the second processor 21 transfers the communication signal to the first DFS channel of the second sub-frequency band for transmission, the wireless AP 10 broadcasts a message of selecting the first non-DFS channel of the first sub-frequency band to operate to the user terminal 20, so that the second processor 21 controls the third antenna 22 to operate on the first non-DFS channel of the first sub-frequency band to establish an association with the wireless AP 10 on the first non-DFS channel of the first sub-frequency band. Since the user terminal 20 works on the first non-DFS channel of the first sub-frequency band and the first DFS channel of the second sub-frequency band at the same time, when a radar signal appears on the first DFS channel of the second sub-frequency band for communication signal transmission, the second processor 21 can switch the communication signal to the first non-DFS channel of the first sub-frequency band that is already working for transmission, thereby avoiding interruption of signal transmission.

[0147] In some embodiments, when there is no radar signal on the first DFS channel of the first sub-frequency band, the second processor 21 is further configured to transmit the communication signal through the first DFS channel of the second sub-frequency band. That is, when there is no radar signal on the first DFS channel of the first sub-frequency band, the second processor 21 can transmit the communication signal through the first DFS channel of the first sub-frequency band, or can transmit the communication signal through the first DFS channel of the second sub-frequency band. When there is no radar signal on the first DFS channel of the first sub-frequency band, the second processor 21 can select the first DFS channel of the first sub-frequency band and / or the first DFS channel of the second sub-frequency band to transmit the communication signal according to data transmission needs, so as to improve the transmission rate of the communication signal.

[0148] The first channel may also be a first non-DFS channel of the second sub-band.

[0149] In some embodiments, when there is no radar signal on the first DFS channel of the first sub-frequency band, the second processor 21 is further configured to transmit the communication signal through the first non-DFS channel of the second sub-frequency band. That is, when there is no radar signal on the first DFS channel of the first sub-frequency band, the second processor 21 can transmit the communication signal through the first DFS channel of the first sub-frequency band, and can also transmit the communication signal through the first non-DFS channel of the second sub-frequency band. When there is no radar signal on the first DFS channel of the first sub-frequency band, the second processor 21 can select the first DFS channel of the first sub-frequency band and / or the first non-DFS channel of the second sub-frequency band to transmit the communication signal according to data transmission needs, so as to improve the transmission rate of the communication signal.

[0150] The second processor 21 may be any chip with a transceiver function, and the second processor 21 may also be called a Wi-Fi chip.

[0151] Please refer to Figure 3 , the user terminal 20 also includes a third bandpass filter 24 and a fourth bandpass filter 25. The number of the third bandpass filters 24 corresponds to the number of the third antennas 22, and the number of the fourth bandpass filters 25 corresponds to the number of the fourth antennas 23. The third bandpass filter 24 is coupled between the corresponding third antenna 22 and the second processor 21. The fourth bandpass filter 25 is coupled between the corresponding fourth antenna 23 and the second processor 21. The third bandpass filter 24 is used to filter the communication signal transmitted by the third antenna 22. The fourth bandpass filter 25 is used to filter the communication signal transmitted by the fourth antenna 23. The third bandpass filter 24 and the fourth bandpass filter 25 can isolate the communication signals transmitted by the third antenna 22 and the fourth antenna 23 from each other to avoid mutual interference.

[0152] The third antenna 22 and the fourth antenna 23 of the user terminal 20 may also be reused to transmit signals in the frequency bands corresponding to 2G, 3G, 4G, 5G or GPS.

[0153] In the user terminal of the embodiment of the present application, the second processor 21 simultaneously controls the third antenna 22 to operate on the first DFS channel of the first sub-frequency band and the fourth antenna 23 to operate on the first channel of the second sub-frequency band. When there is a radar signal in the first DFS channel of the first sub-frequency band, the second processor 21 can transfer the communication signal to the first channel of the second sub-frequency band for transmission. When there is no radar signal in the first DFS channel of the first sub-frequency band, the second processor 21 can transmit the communication signal through the first DFS channel of the first sub-frequency band. Since the fourth antenna 23 has been operating on the first channel of the second sub-frequency band before the radar signal appears in the first DFS channel of the first sub-frequency band, the second processor 21 can directly transfer the communication signal transmitted on the first DFS channel of the first sub-frequency band to the first channel of the second sub-frequency band for transmission, thereby ensuring the continuity of the communication signal transmission.

[0154] An embodiment of the present application further provides a wireless communication system, which includes the wireless access point and user terminal described in any of the above embodiments.

[0155] Please refer to Fig.12 , an embodiment of the present application also provides a wireless communication method, and the wireless communication method includes the following steps.

[0156] Step S01 : monitoring radar signals on a DFS channel in a first sub-frequency band and a DFS channel in a second sub-frequency band.

[0157] Step S02, controlling the first antenna to operate in the first DFS channel of the first sub-frequency band, and controlling the second antenna to operate in the first channel of the second sub-frequency band according to the monitoring result.

[0158] Step S03: when there is a radar signal in the first DFS channel of the first sub-frequency band, the communication signal is transferred to the first channel of the second sub-frequency band for transmission.

[0159] Step S04: when there is no radar signal in the first DFS channel of the first sub-frequency band, transmitting the communication signal through the first DFS channel of the first sub-frequency band.

[0160] Please refer to Fig.13 , an embodiment of the present application also provides a wireless communication method, and the wireless communication method includes the following steps.

[0161] Step S10, controlling the first antenna to operate in the first DFS channel of the first sub-frequency band, and controlling the second antenna to operate in the first channel of the second sub-frequency band.

[0162] Step S20: when there is a radar signal in the first DFS channel of the first sub-frequency band, the communication signal is transferred to the first channel of the second sub-frequency band for transmission.

[0163] Step S30 , when there is no radar signal in the first DFS channel of the first sub-frequency band, transmitting the communication signal through the first DFS channel of the first sub-frequency band.

[0164] Please refer to Fig.14 In some embodiments, the first channel is a first DFS channel of the second sub-frequency band, and the wireless communication method further includes:

[0165] Step S11 , when transferring the communication signal to the first DFS channel of the second sub-frequency band for transmission, controlling the first antenna to operate on the second DFS channel of the first sub-frequency band.

[0166] Step S12: monitoring radar signals on the DFS channel of the first sub-frequency band and the DFS channel of the second sub-frequency band.

[0167] Step S13, when there is a radar signal in the first DFS channel of the second sub-frequency band, stop transmitting the communication signal through the first DFS channel of the second sub-frequency band, and transfer the communication signal to the second DFS channel of the first sub-frequency band for transmission.

[0168] Please refer to Fig.15 In some embodiments, the first channel is a first DFS channel of the second sub-frequency band, and the wireless communication method further includes:

[0169] Step S21 , when transferring the communication signal to the first DFS channel of the second sub-frequency band for transmission, controlling the first antenna to operate on the first non-DFS channel of the first sub-frequency band.

[0170] Step S22: monitoring radar signals on the DFS channel of the second sub-frequency band.

[0171] Step S23, when there is a radar signal in the first DFS channel of the second sub-frequency band, stop transmitting the communication signal through the first DFS channel of the second sub-frequency band, and transfer the communication signal to the first non-DFS channel of the first sub-frequency band for transmission.

[0172] In some embodiments, the first channel is a first DFS channel of the second sub-frequency band, and the wireless communication method further includes:

[0173] When there is no radar signal in the first DFS channel of the first sub-frequency band, the communication signal is transmitted through the first DFS channel of the second sub-frequency band.

[0174] In some embodiments, the first channel is a first non-DFS channel of the second sub-frequency band, and the wireless communication method further includes:

[0175] When there is no radar signal in the first DFS channel of the first sub-frequency band, the communication signal is transmitted through the first non-DFS channel of the second sub-frequency band.

[0176] The first sub-frequency band may be a 5470MHz-5850MHz frequency band, and the second sub-frequency band may be a 5150MHz-5350MHz frequency band. The first sub-frequency band and the second sub-frequency band may also be other Wi-Fi frequency bands.

[0177] The wireless communication method of the embodiment of the present application simultaneously controls the first antenna to operate on the first DFS channel of the first sub-frequency band and the second antenna to operate on the first channel of the second sub-frequency band. When a radar signal exists in the first DFS channel of the first sub-frequency band, the communication signal is transferred to the first channel of the second sub-frequency band for transmission. When no radar signal exists in the first DFS channel of the first sub-frequency band, the communication signal is transmitted through the first DFS channel of the first sub-frequency band. Because the second antenna has been operating on the first channel of the second sub-frequency band before the radar signal appears in the first DFS channel of the first sub-frequency band, the communication signal transmitted on the first DFS channel of the first sub-frequency band is directly transferred to the first channel of the second sub-frequency band for transmission, thereby ensuring the continuity of the communication signal transmission.

[0178] Please refer to Fig.16 , an embodiment of the present application also provides a wireless communication method, and the wireless communication method includes the following steps.

[0179] Step S100, controlling the third antenna to operate in the first DFS channel of the first sub-frequency band, and controlling the fourth antenna to operate in the first channel of the second sub-frequency band.

[0180] Step S200: when a radar signal exists in the first DFS channel of the first sub-frequency band, the communication signal is transferred to the first channel of the second sub-frequency band for transmission.

[0181] Step S300 , when there is no radar signal in the first DFS channel of the first sub-frequency band, transmitting the communication signal through the first DFS channel of the first sub-frequency band.

[0182] Please refer to Fig.17 In some embodiments, the first channel is a first DFS channel of the second sub-frequency band, and the wireless communication method further includes:

[0183] Step S31, when transferring the communication signal to the first DFS channel of the second sub-frequency band for transmission, controlling the third antenna to operate on the second DFS channel of the first sub-frequency band.

[0184] Step S32, when there is a radar signal in the first DFS channel of the second sub-frequency band, stop transmitting the communication signal through the first DFS channel of the second sub-frequency band, and transfer the communication signal to the second DFS channel of the first sub-frequency band for transmission.

[0185] Please refer to Fig.18 In some embodiments, the first channel is a first DFS channel of the second sub-frequency band, and the wireless communication method further includes:

[0186] Step S41 , when transferring the communication signal to the first DFS channel of the second sub-frequency band for transmission, controlling the third antenna to operate on the first non-DFS channel of the first sub-frequency band.

[0187] Step S42: when there is a radar signal in the first DFS channel of the second sub-frequency band, stop transmitting the communication signal through the first DFS channel of the second sub-frequency band, and transfer the communication signal to the first non-DFS channel of the first sub-frequency band for transmission.

[0188] In some embodiments, the first channel is a first DFS channel of the second sub-frequency band, and the wireless communication method further includes:

[0189] When there is no radar signal in the first DFS channel of the first sub-frequency band, the communication signal is transmitted through the first DFS channel of the second sub-frequency band.

[0190] In some embodiments, the first channel is a first non-DFS channel of the second sub-frequency band, and the wireless communication method further includes:

[0191] When there is no radar signal in the first DFS channel of the first sub-frequency band, the communication signal is transmitted through the first non-DFS channel of the second sub-frequency band.

[0192] The first sub-frequency band may be a 5470MHz-5850MHz frequency band, and the second sub-frequency band may be a 5150MHz-5350MHz frequency band. The first sub-frequency band and the second sub-frequency band may also be other Wi-Fi frequency bands.

[0193] The wireless communication method of the embodiment of the present application simultaneously controls the third antenna to operate on the first DFS channel of the first sub-frequency band and the fourth antenna to operate on the first channel of the second sub-frequency band. When a radar signal exists in the first DFS channel of the first sub-frequency band, the communication signal is transferred to the first channel of the second sub-frequency band for transmission. When no radar signal exists in the first DFS channel of the first sub-frequency band, the communication signal is transmitted through the first DFS channel of the first sub-frequency band. Since the fourth antenna has been operating on the first channel of the second sub-frequency band before the radar signal appears in the first DFS channel of the first sub-frequency band, the communication signal transmitted on the first DFS channel of the first sub-frequency band can be directly transferred to the first channel of the second sub-frequency band for transmission, thereby ensuring the continuity of the communication signal transmission.

[0194] The embodiment of the present application also provides a chip, the chip includes a processor and an interface. The interface is used to receive code instructions and transmit them to the processor. The processor runs the code instructions to execute the wireless communication method as described above.

[0195] An embodiment of the present application also provides a computer-readable storage medium, which includes instructions. When the computer-readable storage medium is executed on a computer, the computer executes the wireless communication method as described above.

[0196] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0197] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A network device, characterized in that: The device comprises a first processor, at least one first antenna and at least one second antenna, wherein the first antenna and the second antenna are respectively coupled to the first processor, wherein the first antenna operates in a first sub-frequency band, the second antenna operates in a second sub-frequency band, the first sub-frequency band covers a radar frequency band, and the first sub-frequency band and the second sub-frequency band have no overlap; When there is a radar signal in the first sub-frequency band, the communication signal is transmitted through the second antenna; When the first processor transmits the communication signal through the first DFS channel of the second sub-frequency band, the first processor is configured to control the first antenna to operate in the second DFS channel of the first sub-frequency band, or the first processor is configured to control the first antenna to operate in the first non-DFS channel of the first sub-frequency band; When the radar signal does not exist in the first sub-frequency band, the communication signal is transmitted through the first antenna.

2. The network device according to claim 1, characterized in that: When the radar signal exists in the first sub-frequency band, the channel where the first sub-frequency band is located is associated.

3. The network device according to claim 1 or 2, characterized in that: When the radar signal does not exist in the first sub-frequency band, the first processor is configured to control the first antenna to operate in the second DFS (dynamic frequency selection) channel of the first sub-frequency band, and to monitor the radar signals on the DFS channel of the first sub-frequency band and the DFS channel of the second sub-frequency band; when a radar signal exists in the first sub-frequency band, the first processor is configured to stop transmitting the communication signal through the first DFS channel of the second sub-frequency band, and transfer the communication signal to the second DFS channel of the first sub-frequency band for transmission, and the first channel is the first DFS channel of the second sub-frequency band.

4. The network device according to claim 1 or 2, characterized in that: When the radar signal does not exist in the first sub-frequency band, the first processor is configured to control the first antenna to operate in the first non-DFS channel of the first sub-frequency band, and to monitor the radar signal on the DFS channel of the second sub-frequency band; when a radar signal exists in the first sub-frequency band, the first processor is configured to stop transmitting the communication signal through the first DFS channel of the second sub-frequency band, and transfer the communication signal to the first non-DFS channel of the first sub-frequency band for transmission, and the first channel is the first DFS channel of the second sub-frequency band.

5. The network device according to claim 1 or 2, characterized in that: When the first processor transmits the communication signal through the first DFS channel of the second sub-frequency band, the first processor is configured to control the first antenna to operate in the second DFS channel of the first sub-frequency band, and to perform radar signal monitoring on the DFS channel of the first sub-frequency band and the DFS channel of the second sub-frequency band; when a radar signal exists in the first DFS channel of the second sub-frequency band, the first processor is configured to stop transmitting the communication signal through the first DFS channel of the second sub-frequency band, and transfer the communication signal to the second DFS channel of the first sub-frequency band for transmission.

6. The network device according to claim 1 or 2, characterized in that: When the first processor transmits the communication signal through the first DFS channel of the second sub-frequency band, the first processor is configured to control the first antenna to operate in the first non-DFS channel of the first sub-frequency band, and to perform radar signal detection on the DFS channel of the second sub-frequency band; when a radar signal exists in the first DFS channel of the second sub-frequency band, the first processor is configured to stop transmitting the communication signal through the first DFS channel of the second sub-frequency band, and transfer the communication signal to the first non-DFS channel of the first sub-frequency band for transmission, and the first channel is the first DFS channel of the second sub-frequency band.

7. The network device according to claim 1 or 2, characterized in that: When the radar signal does not exist in the first sub-frequency band, the first processor is further configured to transmit the communication signal through a first DFS channel of the second sub-frequency band, and the first channel is the first DFS channel of the second sub-frequency band.

8. The network device according to claim 1, characterized in that: The first channel is a first non-DFS channel of the second sub-frequency band.

9. The network device according to any one of claims 1 to 8, characterized in that: When the radar signal does not exist in the first sub-frequency band, the communication signal is still transmitted through the second antenna.

10. The network device according to any one of claims 1 to 8, characterized in that: The first sub-frequency band includes 5470 MHz-5850 MHz, and the second sub-frequency band includes 5150 MHz-5350 MHz.

11. A user terminal, characterized in that: The device comprises a second processor, at least one third antenna and at least one fourth antenna, wherein the third antenna and the fourth antenna are respectively coupled to the second processor, wherein the third antenna operates in a first sub-frequency band, the fourth antenna operates in a second sub-frequency band, the first sub-frequency band covers a radar frequency band, and the first sub-frequency band and the second sub-frequency band have no overlap; When there is a radar signal in the first sub-frequency band, the communication signal is transmitted through the fourth antenna; When the second processor transmits the communication signal through the first DFS channel of the second sub-frequency band, the second processor is configured to control the third antenna to operate in the second DFS channel of the first sub-frequency band, or the second processor is configured to control the third antenna to operate in the first non-DFS channel of the first sub-frequency band; When the radar signal does not exist in the first sub-frequency band, the communication signal is transmitted through the third antenna and the fourth antenna.

12. The user terminal according to claim 11, characterized in that: When the radar signal exists in the first sub-frequency band, the channel where the first sub-frequency band is located is associated.

13. The user terminal according to claim 11 or 12, characterized in that: When the radar signal does not exist in the first sub-frequency band, the second processor is configured to control the third antenna to operate in the second DFS (dynamic frequency selection) channel of the first sub-frequency band; when a radar signal exists in the first sub-frequency band, the second processor is configured to stop transmitting the communication signal through the first DFS channel of the second sub-frequency band, and transfer the communication signal to the second DFS channel of the first sub-frequency band for transmission, and the first channel is the first DFS channel of the second sub-frequency band.

14. The user terminal according to claim 11 or 12, characterized in that: When the radar signal does not exist in the first sub-frequency band, the second processor is configured to control the third antenna to operate in the first non-DFS channel of the first sub-frequency band; when a radar signal exists in the first sub-frequency band, the second processor is configured to stop transmitting the communication signal through the first DFS channel of the second sub-frequency band, and transfer the communication signal to the first non-DFS channel of the first sub-frequency band for transmission, and the first channel is the first DFS channel of the second sub-frequency band.

15. The user terminal according to claim 11 or 12, characterized in that: When the second processor transmits the communication signal through the first DFS channel of the second sub-frequency band, the second processor is configured to control the third antenna to operate in the second DFS channel of the first sub-frequency band, and to perform radar signal monitoring on the DFS channel of the first sub-frequency band and the DFS channel of the second sub-frequency band; when a radar signal exists in the first DFS channel of the second sub-frequency band, the second processor is configured to stop transmitting the communication signal through the first DFS channel of the second sub-frequency band, and transfer the communication signal to the second DFS channel of the first sub-frequency band for transmission.

16. The user terminal according to claim 1 or 2, characterized in that: When the second processor transmits the communication signal through the first DFS channel of the second sub-frequency band, the second processor is configured to control the third antenna to operate in the first non-DFS channel of the first sub-frequency band, and to perform radar signal detection on the DFS channel of the second sub-frequency band; when a radar signal exists in the first DFS channel of the second sub-frequency band, the second processor is configured to stop transmitting the communication signal through the first DFS channel of the second sub-frequency band, and transfer the communication signal to the first non-DFS channel of the first sub-frequency band for transmission, and the first channel is the first DFS channel of the second sub-frequency band.

17. The user terminal according to claim 11 or 12, characterized in that: When the radar signal does not exist in the first sub-frequency band, the second processor is further configured to transmit the communication signal through a first DFS channel of the second sub-frequency band, and the first channel is the first DFS channel of the second sub-frequency band.

18. The user terminal according to claim 11, characterized in that: The first channel is a first non-DFS channel of the second sub-frequency band.

19. The user terminal according to any one of claims 11 to 18, characterized in that: When the radar signal does not exist in the first sub-frequency band, the communication signal is also transmitted through the fourth antenna.

20. The user terminal according to any one of claims 11 to 18, characterized in that: The first sub-frequency band includes a frequency band of 5470 MHz to 5850 MHz, and the second sub-frequency band includes a frequency band of 5150 MHz to 5350 MHz.

21. A wireless communication system, characterized in that: It comprises the network device described in any one of claims 1-10 and the user terminal described in any one of claims 11-20.

22. A wireless communication method, characterized in that: include: Perform radar signal monitoring on the DFS channel in the first sub-frequency band and the DFS channel in the second sub-frequency band; Controlling the first antenna to operate in the first DFS channel of the first sub-frequency band according to the monitoring result, and controlling the second antenna to operate in the first channel of the second sub-frequency band, wherein the first sub-frequency band and the second sub-frequency band do not overlap; When a radar signal exists in the first DFS channel of the first sub-frequency band, transferring the communication signal to the first channel of the second sub-frequency band for transmission; When transmitting the communication signal through the first DFS channel of the second sub-frequency band, controlling the first antenna to operate in the second DFS channel of the first sub-frequency band, or controlling the first antenna to operate in the first non-DFS channel of the first sub-frequency band; When there is no radar signal in the first DFS channel of the first sub-frequency band, the communication signal is transmitted through the first DFS channel of the first sub-frequency band.

23. A chip, characterized in that: include: Processors and interfaces; The interface is used to receive code instructions and transmit them to the processor; The processor executes the code instructions to perform the wireless communication method as claimed in claim 22.

24. A computer-readable storage medium comprising instructions, which, when executed on a computer, causes the computer to perform the wireless communication method according to claim 22.

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