Antenna configuration method, device and system

Abstract

The invention discloses an antenna configuration method, device and system, and relates to the technical field of wireless communication. The method is applied to a wireless access network comprising an AC (Access Controller) and a plurality of APs (Access Points) which adopt the same channel to transmit data, and the plurality of APs comprise a first AP. The method comprises: an AC receiving a first message sent by a first AP, the first message being used for reporting at least two antennas configured in the first AP, a first antenna and a second antenna in the at least two antennas having different signal coverage areas; and the AC sends a second message to the first AP, wherein the second message indicates that the target antenna takes effect at the target sending power. Wherein the target antenna is one of the at least two antennas. When the AC configures the antennas for the APs adopting the same channel to transmit data through the method, air interface preemption between the APs can be avoided by comprehensively considering the influence of the signal coverage areas and the sending power of different antennas, and the signal coverage range and the transmission quality of the APs can also be ensured.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to an antenna configuration method, device and system. Background Art

[0002] Fiber to the remote (FTTR) network is used to connect user devices to the Internet. FTTR network includes access controller (AC) and at least one wireless access point (AP). AC is used to control and manage at least one AP, and is responsible for aggregating data from different APs and connecting them to the network. Different APs in FTTR network are deployed in different locations. For any AP in FTTR network, the AP is used to connect user devices within its signal coverage to FTTR network.

[0003] For multiple APs that use the same channel to transmit data in an FTTR network, when the distance between these APs is relatively close, there will be overlapping parts in the signal coverage of these APs, so that the air interface signals between these APs will interfere with each other, and then the air interface preemption phenomenon will occur.

[0004] To avoid air interface preemption between APs that use the same channel to transmit data in an FTTR network, the AP antenna transmit power can be reduced. The antenna transmit power refers to the power of the signal to be transmitted input to the antenna. However, reducing the AP antenna transmit power will cause the AP's signal coverage to become smaller or the transmission quality within the AP's signal coverage to deteriorate. The smaller signal coverage or deteriorated transmission quality may affect the communication quality of user devices within the AP's original coverage. Summary of the invention

[0005] The present application provides an antenna configuration method, device and system. By configuring antennas for APs that use the same channel to transmit data, the method can avoid air interface preemption between APs and ensure the signal coverage and signal transmission quality of the APs, thereby ensuring the communication quality of user equipment within the AP signal coverage.

[0006] To achieve the above objectives, this application provides the following technical solutions:

[0007] In the first aspect, the present application provides an antenna configuration method, which is applied to a wireless access network including an AC and multiple APs that use the same channel to transmit data, the multiple APs include a first AP, and the method is executed by the AC. The method includes: receiving a first message sent by the first AP, the first message is used to report at least two antennas configured in the first AP, and the signal coverage area of ​​the first antenna of the at least two antennas is different from the signal coverage area of ​​the second antenna of the at least two antennas. Sending a second message to the first AP, the second message indicates that the target antenna is effective with a target transmit power. Among them, the target antenna is one of the at least two antennas mentioned above. The target transmit power is the antenna transmit power of the target antenna, specifically refers to the power of the signal to be transmitted input to the target antenna.

[0008] Through the method provided by the present application, when the AC configures the antenna for the first AP, the AC not only considers adjusting the size of the transmit power of the first AP antenna, but also considers that the signal coverage areas of different antennas in the first AP are also different. By comprehensively considering different antennas and different antenna transmit powers to configure the antenna of the first AP, the same-channel interference caused by the first AP can be reduced, and the signal coverage range and signal transmission quality of the first AP can be guaranteed to the maximum extent, thereby ensuring the communication quality of user equipment within the signal coverage range of the first AP.

[0009] In one possible design, the method further includes: receiving a third message sent by the first AP, the third message being used to notify whether the target antenna is successfully activated with the target transmission power.

[0010] Through this possible design, the AC can promptly determine whether the antenna is successfully configured for the first AP.

[0011] In another possible design manner, the first message, the second message, and the third message are control and provisioning of wireless access points protocol specification (CAPWAP) messages.

[0012] In another possible design, the first message includes a first type identifier, which is used to mark that the first message is a message for reporting at least two antennas configured in the first AP. The second message includes a second type identifier, which is used to mark that the second message is a control message for indicating that the antenna configuration carried by the second message is effective. The third message includes a third type identifier, which is used to mark that the third message is a response message to the second message.

[0013] In another possible design, the first type identifier is carried in the message type field of the first message and / or the type field of the type-length-value (TLV) in the first message. The second type identifier is carried in the message type field of the second message and / or the type field of the TLV in the second message. The third type identifier is carried in the message type field of the third message and / or the type field of the TLV in the third message.

[0014] In another possible design, the first message includes the number of the at least two antennas, which is used to determine the antenna identification of each of the at least two antennas, and the number is carried in the TLV of the first message. The second message includes the antenna identification and target transmit power of the target antenna, or the second message includes an antenna maintenance flag and a target transmit power. The antenna identification, antenna maintenance flag and target transmit power of the target antenna are carried in the TLV of the second message. The antenna maintenance flag indicates that the currently effective antenna is maintained unchanged.

[0015] Through the above-mentioned possible designs, the solution of this application can be implemented based on the current CAPWAP protocol.

[0016] In another possible design, before sending the second message to the first AP, the method further includes: determining a first co-channel interference matrix according to each of the at least two antennas. According to the first co-channel interference matrix, determine the target antenna and the target transmission power for the first AP. Wherein, the first co-channel interference matrix includes the interference intensity of the co-channel interference caused by the first AP to other APs when the first AP validates each antenna at full power, and the other AP is an AP other than the first AP in the wireless access network. Wherein, the first interference intensity difference corresponding to the target antenna is less than the second interference intensity difference corresponding to the other antennas, and the other antennas are antennas other than the target antenna among the at least two antennas. The first interference intensity difference is the difference between the first interference intensity and the interference threshold, and the first interference intensity includes the interference intensity of the co-channel interference caused by the first AP to the aforementioned other APs when the first AP validates the target antenna at full power. The second interference intensity difference is the difference between the second interference intensity and the interference threshold, and the second interference intensity includes the interference intensity of the co-channel interference caused by the first AP to the aforementioned other APs when the first AP validates the aforementioned other antennas at full power. The target transmission power is: when the target antenna is effective in the first AP, the transmission power of the target antenna when the interference intensity of the co-channel interference caused by the first AP to the aforementioned other APs is the interference threshold.

[0017] Through this possible design, the interference intensity with the smallest difference from the interference threshold can be taken as the target interference intensity among the interference intensities generated by different antennas in the first co-channel interference matrix, so that when the target interference intensity is reduced to the interference threshold, the antenna transmission power is reduced the least. Furthermore, when the antenna corresponding to the target interference intensity is determined as the target antenna, when the target interference intensity of the target antenna is reduced to the interference threshold, the antenna transmission power of the target antenna is reduced the least compared with other antennas in the AP. In this way, on the basis of reducing the co-channel interference caused by the AP, the scheme also maximizes the antenna transmission power of the AP, that is, it guarantees the signal coverage range and signal transmission quality of the antenna, thereby ensuring the communication quality of user equipment within the AP signal coverage range.

[0018] In another possible design, the above-mentioned determination of the first co-channel interference matrix based on each antenna configured in the first AP includes: the AC performs the following processing on the first antenna configured in the first AP until the same processing is performed on each antenna configured in the first AP to obtain the co-channel interference detection results reported by other APs other than the first AP in the wireless access network when the first AP validates each antenna at full power: the AC sends a first control message to the first AP to control the first AP to validate the first antenna at full power. The AC controls other APs in the wireless access network except the first AP to start co-channel interference detection for the first AP. The AC receives the co-channel interference detection results reported by the aforementioned other APs when the first AP validates the first antenna at full power. The AC determines the first co-channel interference matrix based on the co-channel interference detection results reported by the aforementioned other APs when the first AP validates each antenna at full power.

[0019] Through this possible design, the AC can obtain the co-channel interference intensity caused by the first AP to other APs when the first AP activates each antenna at full power.

[0020] In another possible design, before sending the second message to the first AP, the method further includes: determining a co-channel interference matrix corresponding to each AP in other APs except the first AP in the wireless access network. For a second AP in the other APs, the co-channel interference matrix corresponding to the second AP includes: when each antenna configured in the second AP is effective at full power, the interference intensity of the co-channel interference caused by the second AP to APs other than the second AP in the wireless access network.

[0021] Through this possible design, since the default antenna that is generally effective for each AP in the wireless access network is an omnidirectional antenna, by first determining the co-channel interference matrix of each AP and then controlling and adjusting the antenna and antenna transmission power of each AP, it is possible to avoid that when the AP with adjusted antenna and antenna transmission power (i.e., the AP with non-omnidirectional antenna in effect) detects the co-channel interference caused by the AP to other APs, the interference intensity detected by the other APs is not the maximum, thereby avoiding loopholes between the signal coverage areas of each AP after the antenna and antenna transmission power are finally adjusted in the wireless access network, and further avoiding the problem that the signal coverage area of ​​the wireless access network cannot completely cover the area where the user equipment is located.

[0022] In another possible design, the first AP is configured with multiple antennas, including omnidirectional antennas and directional antennas.

[0023] In a second aspect, the present application provides an antenna configuration method, which is applied to a first AP among multiple APs that use the same channel to transmit data in a wireless access network, and the wireless access network also includes an AC. The method includes: sending a first message to the AC, the first message is used to report at least two antennas configured in the first AP, and the signal coverage area of ​​the first antenna of the at least two antennas is different from the signal coverage area of ​​the second antenna of the at least two antennas. Receive a second message sent by the AC, the second message indicates that the target antenna is activated with a target transmit power, the target antenna is one of the aforementioned at least two antennas, and the target transmit power is the power of the signal to be transmitted input to the target antenna. In response to the second message, the target antenna is activated with the target transmit power.

[0024] In one possible design, the method further includes: sending a third message to the AC, where the third message is used to notify whether the target antenna is successfully activated with the target transmission power.

[0025] In another possible design, the first message, the second message, and the third message are CAPWAP messages.

[0026] In another possible design, the first message includes a first type identifier, which is used to mark that the first message is a message for reporting at least two antennas configured in the first AP. The second message includes a second type identifier, which is used to mark that the second message is a control message for indicating that the antenna configuration carried by the second message is effective. The third message includes a third type identifier, which is used to mark that the third message is a response message to the second message.

[0027] In another possible design, the first type identifier is carried in the message type field of the first message and / or the type field of the TLV in the first message. The second type identifier is carried in the message type field of the second message and / or the type field of the TLV in the second message, and the third type identifier is carried in the message type field of the third message and / or the type field of the TLV in the third message.

[0028] In another possible design, the first message includes the number of the at least two antennas, which is used to determine the antenna identification of each of the at least two antennas, and the number is carried in the TLV of the first message. The second message includes the antenna identification and target transmit power of the target antenna, or the second message includes an antenna maintenance flag and a target transmit power. The antenna identification, antenna maintenance flag and target transmit power of the target antenna are carried in the TLV of the second message. The antenna maintenance flag indicates that the currently effective antenna is maintained unchanged.

[0029] In another possible design, the first interference strength difference corresponding to the target antenna is smaller than the second interference strength difference corresponding to other antennas, and the other antennas are antennas other than the target antenna among the at least two antennas. The first interference strength difference is the difference between the first interference strength and the interference threshold, and the first interference strength includes the interference strength of the co-channel interference caused by the first AP to other APs when the first AP validates the target antenna at full power. The second interference strength difference is the difference between the second interference strength and the interference threshold, and the second interference strength includes the interference strength of the co-channel interference caused by the first AP to the other APs when the first AP validates the other antennas at full power. The target transmission power is the transmission power of the target antenna when the interference strength of the co-channel interference caused by the first AP to the other APs is the interference threshold when the target antenna is validated in the first AP.

[0030] In another possible design, the first AP is configured with multiple antennas, including omnidirectional antennas and directional antennas.

[0031] It can be understood that the beneficial effects of the technical solution provided by the second aspect and any possible design thereof can be referred to the description of the beneficial effects of the technical solution provided by the first aspect and any possible design thereof, and will not be repeated here.

[0032] In a third aspect, the present application provides an antenna configuration device.

[0033] In a possible design, the antenna configuration device is used to execute any of the methods provided in the first aspect above. The present application may divide the antenna configuration device into functional modules according to any of the methods provided in the first aspect above. For example, each functional module may be divided according to each function, or two or more functions may be integrated into one processing module. Exemplarily, the present application may divide the antenna configuration device into a receiving unit and a sending unit, etc. according to the function. The description of the possible technical solutions and beneficial effects executed by the above-mentioned divided functional modules can refer to the technical solutions provided by the first aspect or its corresponding possible design, and will not be repeated here.

[0034] In another possible design, the antenna configuration device is used to execute any of the methods provided in the second aspect above. The present application may divide the antenna configuration device into functional modules according to any of the methods provided in the second aspect above. For example, each functional module may be divided according to each function, or two or more functions may be integrated into one processing module. Exemplarily, the present application may divide the antenna configuration device into a sending unit, a receiving unit, and a processing unit, etc. according to the function. The description of the possible technical solutions and beneficial effects executed by the above-mentioned divided functional modules can refer to the technical solutions provided by the second aspect or its corresponding possible design, which will not be repeated here.

[0035] In another possible design, the antenna configuration device includes: a memory, a network interface and one or more processors, the one or more processors receiving or sending data through the network interface, and the one or more processors being configured to call program instructions stored in the memory so that the antenna configuration device executes any method provided by the first aspect and any possible design thereof, or executes any method provided by the second aspect and any possible design thereof.

[0036] In a fourth aspect, the present application provides an antenna configuration system, the system comprising an AC and multiple APs that use the same channel to transmit data, the multiple APs including a first AP. The AC is used to execute any of the methods provided in the first aspect and any possible design thereof, and the first AP is used to execute any of the methods provided in the second aspect and any possible design thereof, so as to enable the first AP to activate a target antenna with a target transmit power. The target antenna is one of at least two antennas configured in the first AP, and the target transmit power is the power of a signal to be transmitted input to the target antenna.

[0037] In a fifth aspect, the present application provides a computer-readable storage medium, which includes program instructions. When the program instructions are executed on a computer or a processor, the computer or the processor executes any method provided by any possible implementation in the first aspect or the second aspect.

[0038] In a sixth aspect, the present application provides a computer program product, which, when executed on an antenna configuration device, enables any method provided by any possible implementation in the first aspect or the second aspect to be executed.

[0039] In a seventh aspect, the present application provides a chip system, comprising: a processor, the processor being used to call and run a computer program stored in a memory from the memory, and execute any one of the methods provided by the implementation in the first aspect or the second aspect.

[0040] It can be understood that any of the above-mentioned devices, systems, computer storage media, computer program products or chip systems can be applied to the corresponding methods provided above. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding methods and will not be repeated here.

[0041] In this application, the names of the antenna configuration device and the antenna configuration system do not limit the devices or functional modules themselves. In actual implementation, these devices or functional modules may appear with other names. As long as the functions of each device or functional module are similar to those of this application, they fall within the scope of the claims of this application and their equivalent technologies. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 A schematic diagram of dividing channels in the 2.4 GHz frequency band and the 5 GHz frequency band provided in an embodiment of the present application;

[0043] Figure 2 An operation diagram of reducing RSSI provided in an embodiment of the present application;

[0044] Figure 3 A schematic diagram of the format of an unencrypted CAPWAP message provided in an embodiment of the present application;

[0045] Figure 4 A schematic diagram of the format of an encrypted CAPWAP message provided in an embodiment of the present application;

[0046] Figure 5 A schematic diagram of a wireless access network in a corridor scenario providing a common coverage area of ​​a terminal through signal coverage areas of multiple APs in an embodiment of the present application;

[0047] Figure 6A schematic diagram of the architecture of a wireless access network provided in an embodiment of the present application;

[0048] Figure 7 A schematic diagram of the hardware structure of an AC provided in an embodiment of the present application;

[0049] Figure 8 A schematic diagram of the hardware structure of an AP provided in an embodiment of the present application;

[0050] Fig. 9 A schematic diagram of a flow chart of an antenna configuration method provided in an embodiment of the present application;

[0051] Fig.10 A schematic diagram of a format for carrying the number of antennas through the value field of a TLV provided in an embodiment of the present application;

[0052] Fig.11 A schematic diagram of a format for carrying a first response flag through a TLV value field provided in an embodiment of the present application;

[0053] Fig.12 A schematic diagram of a format for carrying an antenna identifier, an antenna maintenance flag, and an antenna transmit power through a TLV value field provided in an embodiment of the present application;

[0054] Fig.13 A schematic diagram of a process for determining a target antenna and a target transmit power provided in an embodiment of the present application;

[0055] Fig.14 A schematic diagram of a process for determining the interference intensity of the same-channel interference caused to other APs when the first AP activates the first antenna at full power provided by an embodiment of the present application;

[0056] Fig.15 A schematic diagram of a process in which a second AP performs co-channel interference detection on a first AP provided in an embodiment of the present application;

[0057] Fig.16 A schematic diagram of an AC obtaining a first co-channel interference matrix provided in an embodiment of the present application;

[0058] Fig.17 A schematic diagram of another AC obtaining a first co-channel interference matrix provided in an embodiment of the present application;

[0059] Fig.18 A schematic diagram of a flow chart of another antenna configuration method provided in an embodiment of the present application;

[0060] Fig.19 A schematic diagram of a method flow chart of another antenna configuration provided in an embodiment of the present application;

[0061] Fig. 20 A schematic diagram of a process for an AP to report antenna capabilities provided in an embodiment of the present application;

[0062] Fig.21 A schematic diagram of a method flow chart of another antenna configuration provided in an embodiment of the present application;

[0063] Fig. 22 A schematic diagram of the structure of an antenna configuration device provided in an embodiment of the present application;

[0064] Fig.23 A schematic diagram of the structure of another antenna configuration device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0065] In order to more clearly understand the embodiments of the present application, some terms or technologies involved in the embodiments of the present application are explained below:

[0066] 1) Channel

[0067] A channel is also called a frequency channel or a wave channel. It is a channel for wireless network signals (such as wireless fidelity (WIFI)) to be transmitted in a communication system. A channel consists of a transmission medium for transmitting signals between a transmitter and a receiver.

[0068] In some wireless local area network (WLAN) specifications, four independent frequency bands are divided, namely 2.4 GHz, 3.6 GHz, 4.9 GHz and 5 GHz. Each frequency band can be divided into multiple channels. Currently, the commonly used frequency bands are 2.4 GHz and 5 GHz.

[0069] refer to Figure 1 , Figure 1 A schematic diagram showing channel division in the 2.4 GHz frequency band and the 5 GHz frequency band is shown.

[0070] like Figure 1 As shown in (a) in FIG. 1 , the 2.4 GHz frequency band includes channels 1, 2, ..., and 14 numbered 1 to 14. The bandwidth of each channel is 22 MHz, and the center frequencies of two adjacent channels from channels 1 to 13 differ by 5 MHz. For example, the center frequency of channel 1 is 2.412 GHz, and the center frequency of channel 2 is 2.417 GHz, and the difference between 2.412 GHz and 2.417 GHz is 5 MHz. The center frequencies of channels 13 and 14 differ by 12 MHz.

[0071] Depend on Figure 1As can be seen from (a), the bandwidths of channels 1, 6, and 11 do not overlap, so channels 1, 11, and 16 do not interfere with each other. In addition, there are overlapping bandwidths between channels with similar numbers, and overlapping bandwidths will cause signal interference between channels. For example, there is an overlapping bandwidth between channels 1 and 2, so signal interference will occur between data signals transmitted through channels 1 and 2.

[0072] like Figure 1 As shown in (b) of FIG. 5 , the 5 GHz frequency band can be divided into channels with different bandwidths, for example, 20 MHz, 40 MHz, 80 MHz, and 160 MHz. As shown in the figure, the channels obtained by dividing the 5 GHz frequency band with a bandwidth of 20 MHz include channel 36, channel 40, channel 44, ..., and channel 96. In some examples, Figure 1 In (b), the channels represented by black trapezoids are used by region 1, and the channels represented by white trapezoids are used by region 2.

[0073] Depend on Figure 1 As can be seen from (b) in the figure, there is no overlapping bandwidth between any adjacent channels. Therefore, different channels in the 5GHz frequency band do not interfere with each other.

[0074] 2) Antenna

[0075] An antenna is a passive device that converts electrical signals into electromagnetic wave signals.

[0076] An antenna described in an embodiment of the present application can be understood as a logical antenna, which is implemented by one (or one) physical antenna installed (or configured) in the electronic device, or by multiple (or more) physical antennas installed (or configured) in the electronic device, without limitation.

[0077] When the antenna (i.e., logical antenna) described in the embodiment of the present application is implemented by multiple physical antennas installed (or configured) in the electronic device, the multiple physical antennas can be referred to as a physical antenna combination. In other words, one antenna (i.e., one logical antenna) described in the embodiment of the present application corresponds to one physical antenna combination.

[0078] Exemplarily, the electronic device is equipped with an antenna referred to as a "quad antenna", which is a physical antenna combination including 4 physical antennas. Another exemplary embodiment, the electronic device is equipped with an antenna referred to as a "six antenna", which is a physical antenna combination including 6 physical antennas.

[0079] It should be understood that multiple physical antennas in a physical antenna combination may have the same performance parameters or different performance parameters, and there is no limitation on this. In addition, the performance parameters of multiple physical antennas in a physical antenna combination, the installation angle of each physical antenna, etc. are all fixed. Therefore, a physical antenna combination corresponds to a fixed signal coverage area. That is, an antenna (i.e., a logical antenna) described in an embodiment of the present application corresponds to a fixed signal coverage area.

[0080] When multiple antennas (i.e., logical antennas) are configured / installed in an electronic device, each antenna has a corresponding signal coverage area, and the signal coverage areas of different antennas are different. For example, if two logical antennas are configured / installed in an electronic device, namely antenna 1 and antenna 2, and the signal coverage area corresponding to antenna 1 is area 1, and the signal coverage area corresponding to antenna 2 is area 2, then area 1 and area 2 are different.

[0081] In one example, two "quad antennas" are configured in an electronic device. The installation angles of each physical antenna in the first quad antenna differ by 90 degrees, so that the signal coverage area of ​​the first quad antenna is a circular area centered on the electronic device. At this time, the first quad antenna can be called an omnidirectional antenna. The installation angles of each physical antenna in the second quad antenna are the same and all face the left side of the electronic device. Then the signal coverage area of ​​the second quad antenna is the left area of ​​the electronic device. At this time, the second quad antenna is called a directional antenna. In some examples, when the signal coverage area of ​​a directional antenna is in the shape of "∞", the directional antenna can be called a dual-beam antenna.

[0082] In another example, an electronic device is configured with one four-antenna and one six-antenna. The installation angle of each physical antenna in the four antennas is the same and all face the right side of the electronic device. The signal coverage area of ​​the four antennas is the right area of ​​the electronic device. The installation angle of each physical antenna in the six antennas differs by 90 degrees, so that the signal coverage area of ​​the six antennas is a circular area centered on the electronic device.

[0083] Furthermore, the electronic device can select any one of the multiple antennas (logical antennas) configured in the electronic device to be effective for signal transmission. This process is called intelligent switching of antennas.

[0084] 3) AP, AC

[0085] A wireless access point (AP) is used to provide wireless network access services to terminals that support wireless networks (such as WIFI). In a wireless access network, the AP communicates with the access controller (AC) through a medium (such as optical fiber) and is managed and controlled by the AC.

[0086] AC is the access control device of the wireless access network, responsible for aggregating data from different APs and accessing the network (such as the Internet), and completing AP configuration management, wireless user authentication, management, broadband access, security and other control functions. For example, AC configures the specified signal transmission power for AP, specifies the channel for AP to transmit WIFI signals, etc.

[0087] 3) Co-channel interference

[0088] For two APs deployed in close proximity, if the two APs are within each other's signal coverage, the two APs can detect the data signals sent by each other. Optionally, the strength of the data signal detected by the AP can be represented by the received signal strength indication (RSSI) determined by the data signal detected by the AP. Or it can be understood that RSSI can represent the actual strength of the data signal sent by the AP when it reaches another AP after attenuation through air interface transmission. The smaller the RSSI, the smaller the strength of the data signal detected by the AP. Conversely, the larger the RSSI, the greater the strength of the data signal detected by the AP.

[0089] In one case, when two APs deployed in close proximity use different channels for data transmission, for example, two different channels in the 5GHz frequency band are used for data transmission respectively, since different channels in the 5GHz frequency band do not interfere with each other, even if the RSSIs of the two APs based on the data signals detected by each AP and sent by the other AP are relatively large, there will be no interference between the data signals sent by the two APs, that is, the data transmitted by the two APs will not affect each other.

[0090] In another case, when two APs deployed in close proximity use the same channel for data transmission, for example, when both use a channel in the 5 GHz frequency band for data transmission, if the two APs can determine a certain RSSI based on the data signals detected by each AP and sent by the other party, it means that interference will occur between the data signals transmitted by the two APs. This interference is called co-channel interference.

[0091] Among them, when the antenna transmission power of the AP is greater, it means that the signal coverage range of the AP is greater. Therefore, when the data signal sent by the AP is transmitted to another AP after air attenuation, the signal strength (represented by RSSI) that the AP can detect is also greater. In this way, the co-channel interference generated by the AP will also be greater. Here, the antenna transmission power of the AP is the power of the signal to be sent input to the AP antenna.

[0092] In actual applications, co-channel interference will cause APs to seize air interface resources, such as channel resources. For example, AP1 and AP2, which are deployed in close proximity, both use channel 1 to transmit data. When AP1 determines RSSI 0 based on the data signal sent by AP2, and RSSI 0 is greater than the interference threshold, the co-channel interference caused by AP2's data signal to AP1 will cause AP1 to be unable to parse the correct data based on the received data signal. To avoid this situation, AP1 will enter the silent state, and AP2 will transmit data signals based on channel 1. This phenomenon is called AP2 seizing channel resources. For AP1, AP1 will transmit data through channel 1 during the gap between AP2 transmitting data. When AP1 transmits data through channel 1, it means that AP1 has seized channel resources. It can be understood that when RSSI 0 is less than the interference threshold, the co-channel interference caused by AP2's data signal to AP1 will not affect AP1's data parsing.

[0093] Therefore, in order to avoid air interface preemption caused by co-channel interference, it is necessary to reduce the RSSI of the AP with respect to another AP, wherein the RSSI of the AP with respect to another AP refers to the RSSI determined by the AP based on the data signal detected and sent by the other AP.

[0094] For example, Figure 2 As shown, for the RSSI of AP2 on AP1, the operation that can reduce the RSSI includes any of the following operations: increasing the deployment distance between AP2 and AP1; or reducing the transmission power of AP2 antenna, for example Figure 2 As shown, the antenna transmission power of AP2 is adjusted from transmission power 1 to transmission power 2, where transmission power 2 is less than transmission power 1; or, the signal transmission angle of AP2 is changed to make AP1 away from the signal coverage range of AP2, for example, Figure 2 The angle of the horizontally transmitted signal is adjusted to the angle of the vertically transmitted signal.

[0095] 4) TLV

[0096] TLV is a commonly used structure format for communication, specifically type-length-value (or type-length-data). Among them, T represents the data type of value, L represents the length of value, and V represents the specific data.

[0097] 5) CAPWAP protocol

[0098] CAPWAP protocol refers to the control and provisioning of wireless access points protocol specification. CAPWAP protocol is a protocol used to implement communication between AP and AC. For example, through CAPWAP protocol, AP can discover AC, and AC can manage and control the configuration of AP.

[0099] The CAPWAP protocol specifies the CAPWAP message format. The following is a brief introduction to the CAPWAP message format.

[0100] Referring to Table 1, Table 1 shows the preamble format of the CAPWAP message. As shown in Table 1, the preamble of the CAPWAP message includes one byte, namely, byte 0 shown in Table 1. The preamble of the CAPWAP message includes a version field and a type field.

[0101] The version field includes the first 4 bits of the CAPWAP message preamble, which is used to indicate the CAPWAP protocol version used by the current CAPWAP message and is generally set to 0.

[0102] type field: includes the last 4 bits of the CAPWAP message preamble, which are used to indicate whether the current CAPWAP message is encrypted. When the type field value is 0 (i.e. 0000), it indicates that the current CAPWAP message is an unencrypted CAPWAP message. At this time, the message header of the CAPWAP message is the CAPWAP Header. When the type field value is 1 (i.e. 0001), it indicates that the current CAPWAP message is an encrypted CAPWAP message. At this time, the message header of the CAPWAP message is the CAPWAP DTLS Header. Among them, DTLS is the datagram transport layer security protocol.

[0103] Table 1

[0104]

[0105] refer to Figure 3 , Figure 3 A schematic diagram showing the format of an unencrypted CAPWAP message is shown.

[0106] like Figure 3As shown in (a), the unencrypted CAPWAP message includes a CAPWAP header, a CAPWAP control header, and a TLV.

[0107] like Figure 3 As shown in (a) in FIG. 1 , the CAPWAP header includes a CAPWAP preamble field. The CAPWAP preamble field is 1 byte long, and its specific structure is shown in Table 1. The type field in the preamble has a value of 0.

[0108] like Figure 3 As shown in (a) in FIG. 1 , the CAPWAP header further includes a HLEN field, a RID (radio ID) field, a WBID field, a T field, a F (flag) field, a L (lable) field, a W field, an M field, a K field, a Flags field, a fragment ID field, a fragment offset field, a reserved (Rsvd) field, an (optional) radio media access control address (radio MAC address) field, and an (optional) wireless specific information field. The detailed interpretation of the aforementioned fields refers to the definition of the current CAPWAP protocol and will not be repeated here.

[0109] The wireless specific information field generally uses the TLV format and requires the TLV to be 4-byte aligned as a whole. Figure 3 (b) in Figure 3 (b) in FIG. 1 shows a schematic diagram of the structure of two TLVs used in the wireless specific information field. Figure 3 As shown in (b), the type field and length field in TLV1 each include 1 byte, and the data field includes 6 bytes, so that TLV1 includes 8 bytes in total, which ensures 4-byte alignment. In some examples, when the type field value of TLV1 is 0, it means that TLV1 is used as a padding bit of the CAPWAP header to align the CAPWAP header with 4 bytes. When the type field value of TLV1 is 1, it means that the value of TLV1 is used to record the integrity check code of the current message, and the general length is 32 bytes. When the type field value of TLV1 is 3, it means that the value of TLV1 is used to carry the retransmission queue number, and the general length is 1 byte. TLV2 is similar to TLV1 and will not be repeated.

[0110] like Figure 3As shown in (a) in FIG. 1 , the CAPWAP control header includes a message type field, a Seq num field, a message element length field, and a flag field. The detailed interpretation of each of the aforementioned fields is referred to the definition of the current CAPWAP protocol and will not be repeated here.

[0111] It should be noted that, in the embodiment of the present application, optionally, a message type field with a length of 4 bytes is used to carry a first type identifier, a response type identifier, a second type identifier, or a third type identifier. For example, the first type identifier is represented by an unoccupied value 1 of the message type field, the response type identifier is represented by an unoccupied value 2 of the message type field, the second type identifier is represented by an unoccupied value 3 of the message type field, and the third type identifier is represented by an unoccupied value 4 of the message type field.

[0112] like Figure 3 As shown in (a), TLV includes a type field, a length field, and a value field. The type field includes 2 bytes, which are used to record the type of the value. The length field includes 2 bytes, which are used to record the length of the value. The value field is the data content, and the length of the value field is determined by the length of the data content. Figure 3 The length of the value field shown in (a) is 8 bytes.

[0113] In the embodiment of the present application, the value field of the TLV in the CAPWAP message (such as Figure 3 The value field of the TLV shown in (a) in FIG. 1 is used to carry the antenna information described below, such as the antenna identification, the number of antennas, the antenna maintenance flag, the target transmission power, and the response flag, etc. The detailed description can be found in the relevant description below and will not be repeated here.

[0114] Optionally, the type field of the TLV in the CAPWAP message (such as Figure 3 The type field of the TLV shown in (a) in the CAPWAP message is used to carry the first type identifier, the response type identifier, the second type identifier, or the third type identifier described below. Alternatively, the type field of the TLV in the CAPWAP message (such as Figure 3 The type field of the TLV shown in (a) in the CAPWAP control header and the messagetype field of the CAPWAP control header jointly carry the first type identifier, response type identifier, second type identifier or third type identifier described below. Detailed descriptions can be found in the relevant descriptions below and will not be repeated here.

[0115] refer to Figure 4 , Figure 4 FIG. 1 shows a schematic diagram of the format of an encrypted CAPWAP message. Figure 4 As shown, the encrypted CAPWAP message includes a CAPWAP DTLS header and a DTLS header.

[0116] like Figure 4 As shown in (a) of FIG, the CAPWAP DTLS header includes a CAPWAP preamble and a reserved field. Figure 4 As shown in (b) in FIG. 1 , the DTLS header includes a content type field, a version field, an Epoch high field, an Epoch low field, a Seq num 0 to 5 field, a length field, etc. The detailed interpretation of the aforementioned fields can refer to the definition of each field in the encrypted CAPWAP message in the current CAPWAP protocol, which will not be repeated here.

[0117] It should be understood that after the encrypted CAPWAP message is decrypted, the following Figure 3 The information of each field shown in (a) will not be repeated here.

[0118] 6) Other terms

[0119] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0120] In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0121] The term "at least one" in this application means one or more, and the term "plurality" in this application means two or more.

[0122] To reduce co-channel interference between APs, you can reduce the transmit power of the AP antenna. However, after reducing the transmit power of the AP antenna, the signal coverage of the AP will also be reduced, and the signal transmission quality may also deteriorate. The reduced signal coverage or deteriorated transmission quality may affect the communication quality of user devices within the original coverage of the AP, affecting the user experience.

[0123] Based on this, an embodiment of the present application provides an antenna configuration method, which is applied to a wireless access network. For any AP of multiple APs that use the same channel to transmit data in the wireless access network, such as the first AP, the first AP sends a first message to the AC of the wireless access network in advance to report at least two antennas configured in the first AP, and the signal coverage area of ​​the first antenna of the at least two antennas is different from the signal coverage area of ​​the second antenna of the at least two antennas. Then, the AC sends a second message to the first AP to instruct the first AP to activate the target antenna with a target transmit power. Among them, the target antenna is one of the at least two antennas mentioned above, and the target transmit power is the antenna transmit power of the target antenna, specifically referring to the power of the signal to be transmitted input to the target antenna.

[0124] Through this method, when the AC configures the antenna for the first AP, the AC not only considers adjusting the size of the transmit power of the first AP antenna, but also considers that the signal coverage areas of different antennas in the first AP are different. By comprehensively considering the signal coverage areas of different antennas and the different antenna transmit powers to configure the antenna for the first AP, it is possible to reduce the co-channel interference caused by the first AP while maximally guaranteeing the signal coverage range and signal transmission quality of the first AP, thereby ensuring the communication quality of user devices within the signal coverage range of the first AP.

[0125] The detailed description of AP, AC, antenna and co-channel interference can refer to the above description, which will not be repeated here. It should be understood that the antennas mentioned below in the embodiments of the present application are all the logical antennas described above, which will not be repeated here.

[0126] The embodiment of the present application also provides a wireless access network, which is used to connect a terminal supporting a wireless network to an operator network. As an example, the wireless access network is a fiber to the remote (FTTR) network. More specifically, the wireless access network is, for example, any one of a fiber to the building (FTTB) network, a fiber to the curb (FTTC) network, a fiber to the home (FTTH) network, or a fiber to the zone (FTTZ) network, but is not limited thereto.

[0127] The wireless access network includes an AC and multiple APs deployed at different locations. The AC and the APs are connected and communicated via wired or wireless means. Optionally, the AC and the APs communicate based on the CAPWAP protocol described above.

[0128] Specifically, the signal coverage areas of all APs in the wireless access network jointly cover the area where the user terminal is located, thereby providing wireless network access services (such as WIFI access services) for the user terminal. Figure 5 , Figure 5 The schematic diagram shows that in a corridor scenario, a wireless access network covers the area where the terminal is located through the signal coverage areas of multiple APs. Figure 5 As shown in the figure, the area where the user terminal (such as a camera) is located is a corridor. Three APs are deployed in the corridor, namely AP 1, AP 2 and AP 3, and the signal coverage area of ​​each AP is shown as a circle. By deploying AP 1, AP 2 and AP 3 at a certain interval, the signal coverage area of ​​AP 1, AP 2 and AP 3 can be completely covered. Figure 5 In this way, user terminals set up in the corridor can access the network through these three APs.

[0129] Optionally, the APs of the wireless access network use the same channel to transmit data. Alternatively, the APs of the wireless access network use different channels to transmit data. Alternatively, some APs of the wireless access network use the same channel to transmit data, and other APs use different channels to transmit data, which is not limited to this. The channel for AP to transmit data is specifically configured by the AC of the wireless access network for each AP, which will not be repeated here. As an example, the AP in the wireless access network can be a wireless router, optical modem or other network device, but is not limited to this. The area where the user terminal is located is, for example, a company office area, an airport / station hall, a shopping mall, a living room and a bedroom at home, etc., but is not limited to this. The user terminal is, for example, a virtual reality (VR) device, a mobile phone, a computer, a tablet computer, a camera, various sensors, etc. that support wireless network access capabilities, but is not limited to this.

[0130] Optionally, the AC of the wireless access network may have the function of an AP in addition to the functions described above. That is, the AC may also provide wireless network access services for user terminals, without limitation. As an example, the AC in the wireless access network may be a network device such as a router, switch, optical modem, gateway, etc. connected to the edge device of the operator network, without limitation thereto.

[0131] As an example, refer to Figure 6 , Figure 6 FIG. 1 shows a schematic diagram of the architecture of a wireless access network provided by an embodiment of the present application. Figure 6As shown, the wireless access network 60 includes an AC and five APs (AP 1, AP 2, AP 3, AP 4, and AP 5) deployed at different locations. The signal coverage areas of these five APs jointly cover the area where the user terminal is located, and are respectively used to provide wireless network access services for the user terminals located in their respective signal coverage areas. The AC is used to manage and control the configuration of the five APs, aggregate the data from the five APs and transmit them to the operator network, and distribute the data from the operator network to different APs.

[0132] In one example, the wireless access network 60 is a FTTR network, and both the AC and the AP are optical modems in the FTTR network. In this case, the optical modem as the AC is called the master optical modem, and the optical modem as the AP is called the slave optical modem. The master optical modem as the AC connects the operator network to the FTTR via optical fiber, for example, connecting the operator network to the FTTR via an optical fiber with a 10G bandwidth. In addition, the master optical modem as the AC and the slave optical modem as the AP are also connected via optical fiber.

[0133] refer to Figure 7 , Figure 7 FIG. 1 shows a schematic diagram of the hardware structure of an AC provided in an embodiment of the present application. Figure 7 As shown, AC 70 includes a processor 701, a memory 702, a network interface 703, and a bus 704. The processor 701, the memory 702, and the network interface 703 are connected via the bus 704.

[0134] Processor 701 is the control center of AC 70, which can be a general-purpose central processing unit (CPU). Processor 701 may also be other general-purpose processors, digital signal processors (digital signal processing, DSP), application-specific integrated circuits (application-specific integrated circuits, ASIC), field-programmable gate arrays (field-programmable gate arrays, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, graphics processing units (graphics processing units, GPU), neural processing units (neural processing units, NPU), tensor processing units (tensor processing units, TPU) or artificial intelligence (artificial intelligent) chips, data processors (data processing units, DPU), etc.

[0135] As an example, the processor 701 includes one or more CPUs, such as Figure 7 In addition, the present application does not limit the number of processor cores in each processor.

[0136] The memory 702 is used to store program instructions or data to be accessed by the application process. The processor 701 can implement the antenna configuration method provided in the embodiment of the present application by executing the program instructions in the memory 702.

[0137] The memory 702 includes a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories. Among them, the volatile memory may be a read-only memory (ROM), a programmable ROM (PROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic random access memory (DRAM), synchronous DRAM (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link DRAM (SLDRAM) and direct rambus RAM (DR RAM). Non-volatile memory can be storage class memory (SCM), solid state drive (SSD), hard disk drive (HDD), etc. Among them, storage class memory can be, for example, non-volatile memory (NVM), phase-change memory (PCM), persistent memory, etc.

[0138] In one possible implementation, the memory 702 exists independently of the processor 701. The memory 702 is connected to the processor 701 via a bus 704 and is used to store data, instructions or program codes. When the processor 701 calls and executes the instructions or program codes stored in the memory 702, the antenna configuration method provided in the embodiment of the present application can be implemented.

[0139] In another possible implementation, the memory 702 and the processor 701 are integrated together.

[0140] Network interface 703, used for AC 70 to communicate with other devices (such as Figure 5 or Figure 6 The AP shown in FIG. 1 , or an edge device of an operator network, etc.) is connected through a communication network, and the communication network may be Ethernet, a radio access network (RAN), a wireless local area network (WLAN), etc. The network interface 703 includes a receiving unit for receiving data / messages, and a sending unit for sending data / messages.

[0141] The bus 704 may be an industry standard architecture (ISA) bus, a peripheral component interconnect (PCI) bus, a high-speed serial computer expansion bus (PCIe), a compute express link (CXL) or an extended industry standard architecture (EISA) bus. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 7 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0142] It should be pointed out that Figure 7 The structure shown in the figure does not constitute a limitation on AC 70, except Figure 7 In addition to the components shown, the AC 70 includes Figure 7 More or fewer components may be shown, or certain components may be combined, or the components may be arranged differently.

[0143] refer to Figure 8 , Figure 8 FIG. 1 shows a schematic diagram of the hardware structure of an AP provided in an embodiment of the present application. Figure 8As shown, AP 80 includes a processor 801, a memory 802, a wireless communication module 803, and a bus 804. The processor 801, the memory 802, and the wireless communication module 803 are connected via the bus 804. Optionally, when AP 80 communicates with AC via a wired connection (such as an optical fiber), AP 80 further includes a wired network interface 805, and the processor 801, the memory 802, the wireless communication module 803, and the wired network interface 805 are connected via the bus 804.

[0144] For a detailed description of processor 801, refer to the above description of processor 701; for a detailed description of memory 802, refer to the above description of memory 702; for a detailed description of bus 804, refer to the above description of bus 704, which will not be repeated here.

[0145] The wireless communication module 803 includes an antenna and a signal processing unit. The wireless communication module 803 is used for the AP 80 to connect to the user terminal through the communication network. Optionally, the wireless communication module 803 is also used for the AP 80 to connect to the AC (such as Figure 6 The AC shown in FIG. 1 is connected via a communication network. The communication network may be RAN or WLAN, etc.

[0146] The antenna is used to send and receive wireless signals carrying data (also called data signals). In one example, based on the installation position of the antenna, the antenna configured for AP 80 may be a built-in antenna or an external antenna, without limitation. In another example, based on the shape of the antenna signal coverage area, the antenna configured for AP 80 includes an omnidirectional antenna, a dual-beam antenna, etc., without limitation.

[0147] It should be understood that the antenna described here is the logical antenna described above. For specific instructions, please refer to the above description and will not be repeated here.

[0148] In the embodiment of the present application, multiple antennas are installed (or configured) in AP 80. At any time when AP 80 is working normally, only one antenna in AP 80 is in the effective state, and AP 80 sends and receives data signals according to the effective antenna. For multiple antennas installed in AP 80, AP 80 can make one of the antennas effective as needed (such as when receiving an AC instruction), and switch the effective antenna to another antenna as needed during the process of the antenna being effective. This process achieves the purpose of AP 80 using different antennas for data signal transmission at different times. For example, AP 80 is configured with two antennas, including antenna 1 and antenna 2. At the current moment, antenna 1 in AP 80 is effective, that is, AP 80 sends and receives data signals through antenna 1. During the process of AP 80 sending and receiving data signals through antenna 1, AP 80 receives an instruction from AC to perform an effective operation on antenna 2. At this time, antenna 1 in AP 80 is offline, and antenna 2 is working normally, so that AP 80 starts to send and receive data signals through antenna 2.

[0149] In some examples, when multiple antennas are installed in the AP 80 and the AP 80 supports switching of active antennas among the multiple antennas, the multiple antennas installed in the AP 80 are called smart antennas.

[0150] The signal processing unit is used to process (such as decoding) the data signal in the form of electromagnetic waves received by the antenna to obtain the original data corresponding to the data signal. The signal processing unit is also used to process (such as encoding) the original data to obtain the data signal in the form of electromagnetic waves that needs to be sent out by the antenna.

[0151] The network interface 805 is used for connecting the AP 80 and the AC via a communication network, which may be Ethernet, local area networks (LAN), etc. The network interface 805 includes a receiving unit for receiving data / messages and a sending unit for sending data / messages.

[0152] It should be pointed out that Figure 8 The structure shown in the figure does not constitute a limitation on AP 80, except Figure 8 In addition to the components shown, the AP 80 includes Figure 8 More or fewer components may be shown, or certain components may be combined, or the components may be arranged differently.

[0153] The antenna configuration method provided in the embodiment of the present application is described below in conjunction with the accompanying drawings.

[0154] refer to Fig. 9 , Fig. 9 The schematic diagram of the flow chart of an antenna configuration method provided by an embodiment of the present application is shown. Optionally, the method is applied to Figure 6The wireless access network shown in FIG. Figure 7 The AC hardware structure shown has Figure 8 The AP of the hardware structure shown executes the corresponding steps. The method includes the following steps S101 to S105.

[0155] S101. A first AP sends a first message to an AC, where the first message is used to report at least two antennas configured in the first AP.

[0156] The first AP is any AP in the wireless access network. The first AP is configured with multiple antennas, including at least two antennas reported by the first AP through a first message, and the signal coverage area of ​​the first antenna of the at least two antennas is different from the signal coverage area of ​​the second antenna of the at least two antennas. Among them, the multiple antennas configured in the first AP include, for example, omnidirectional antennas, dual-beam antennas, etc., but are not limited thereto. In addition. The first AP supports switching of effective antennas.

[0157] Reporting the antenna configured in the first AP through the first message can be understood as reporting the antenna capability of the AP through the first message. Therefore, the first message can also be called a message for reporting the antenna capability.

[0158] In a possible implementation, the first message includes antenna identifiers of at least two antennas configured in the first message. The antenna identifier is, for example, a character, a number, a combination of a character and a number, etc., but is not limited thereto. For example, five antennas are configured in the first AP, namely antenna 1, antenna 2, antenna 3, antenna 4, and antenna 5. Among them, the identifier of antenna 1 is a, the identifier of antenna 2 is b, the identifier of antenna 3 is c, the identifier of antenna 4 is d, and the identifier of antenna 5 is e. Then the first message includes a, b, c, d, and e.

[0159] In another possible implementation, the first AP sets an antenna identifier for each antenna configured by itself according to a first preset strategy, and the first preset strategy is specifically: each antenna configured in the first AP is numbered with a continuous natural number starting with a preset value, and each number is used as an antenna identifier of an antenna configured in the AP. Optionally, the continuous natural numbers starting with the preset value can be natural numbers that continuously increase starting with the preset value, or natural numbers that continuously decrease starting with the preset value, and there is no limitation on this. Among them, the preset value is an integer greater than or equal to 0, and the embodiment of the present application does not limit the specific value of the preset value. For example, the preset value can be 0, 1, 2, etc., but is not limited to this.

[0160] For example, a first AP is configured with 5 antennas, namely antenna 1, antenna 2, antenna 3, antenna 4, and antenna 5. When the preset value is 0, the first AP numbers the 5 antennas in ascending order from 0: antenna 1 is numbered 0, antenna 2 is numbered 1, antenna 3 is numbered 2, antenna 4 is numbered 3, and antenna 5 is numbered 4. When the preset value is 1, the first AP numbers the 5 antennas configured by itself in ascending order from 1: antenna 1 is numbered 1, antenna 2 is numbered 2, antenna 3 is numbered 3, antenna 4 is numbered 4, and antenna 5 is numbered 5. When the preset value is 10, the first AP numbers the 5 antennas configured by itself in descending order from 10: antenna 1 is numbered 10, antenna 2 is numbered 9, antenna 3 is numbered 8, antenna 4 is numbered 7, and antenna 5 is numbered 6. One number serves as the antenna identifier of one antenna.

[0161] The AC is pre-set with the first preset strategy. In this case, the first message includes the number of at least two antennas configured in the first AP, and the number is used to determine the antenna identifier of each of the at least two antennas. This is because, according to the first preset strategy and the number of antennas carried in the first message, the antenna identifier of each of the at least two antennas can be determined.

[0162] As an example, the first message sent by the first AP to the AC includes the number 5, and the first preset strategy for setting the antenna identifier is to number the at least two antennas configured in the first AP with natural numbers that increase continuously starting from 0. Then, according to the first preset strategy and the number 5 in the first message, it can be determined that the at least two antennas configured in the first AP include: antenna 1 with antenna identifier number 0, antenna 2 with antenna identifier number 1, antenna 3 with antenna identifier number 2, antenna 4 with antenna identifier number 3, and antenna 5 with antenna identifier number 4.

[0163] In a possible situation, the first AP may also be configured with only one antenna. Then, in the embodiment of the present application, the first message sent by the first AP to the AC may include the identifier of the antenna, or include the number 1.

[0164] The first message also includes a first type identifier, which is used to mark that the first message is a message for reporting at least two antennas configured in the first AP. Alternatively, the first type identifier indicates that the first message is a message for reporting the antenna capability of the first AP.

[0165] Optionally, the first AP sends a first message to the AC through a communication link that supports the CAPWAP protocol. The communication link that supports the CAPWAP protocol can be referred to as a CAPWAP link, and the CAPWAP link includes an unencrypted CAPWAP link and an encrypted CAPWAP link, which is not limited. In some examples, after the first AP is started, it first broadcasts a discovery message based on the CAPWAP protocol, and after receiving the discovery response message replied by the AC, a CAPWAP link is established between the first AP and the AC. The first AP sends a request message to the AC for requesting access to the wireless access network where the AC is located through the established CAPWAP link, and when the first AP receives the access response message replied by the AC, the first AP completes access to the aforementioned wireless access network. Furthermore, after accessing the wireless access network, the first AP sends a first message to the AC through the aforementioned established CAPWAP link.

[0166] It should be understood that for a first AP configured with multiple antennas, when the first AP starts to work normally after being started, the default antenna will take effect. The default antenna is one of the multiple antennas configured by the first AP. Therefore, after the first AP that works normally accesses the wireless access network, the first AP sends and receives data signals (such as sending a first message) through the default antenna, and switches to the effective antenna after receiving the instruction from the AC. Optionally, the default antenna is generally an omnidirectional antenna.

[0167] When the first AP sends the first message through the CAPWAP link, the first message is a CAPWAP message.

[0168] Optionally, the antenna identifier or quantity included in the first message is carried by a TLV in the CAPWAP message, and is specifically carried by a value field in the TLV. The TLV in the CAPWAP message is, for example, Figure 3 The TLV shown in (a) in FIG.

[0169] For example, when the antennas configured by the first AP are reported through the first message, the first message includes the number of antennas configured by the first AP. Fig.10 , Fig.10 FIG. 1 shows a schematic diagram of a format for carrying the number of antennas through the value field of a TLV provided by an embodiment of the present application. Fig.10 As shown, the 8-bit unsigned char (UCHAR) field in the value field carries the number of antennas configured in the first AP ( Fig.10 For example, when the value of AntMaxNum is 1 (ie, 0000 0001), it indicates that one antenna is configured in the first AP. For another example, when the value of AntMaxNum is 5 (ie, 0000 0101), it indicates that five antennas are configured in the first AP.

[0170] Optionally, the first type identifier in the first message is carried by the type field of the TLV in the CAPWAP message, or by the message type field of the CAPWAP control header in the CAPWAP message, or by the type field of the TLV and the message type field of the CAPWAP control header, and is not limited to this. The type field of the TLV is, for example, Figure 3 The type field shown in (a) in FIG. 1 is a type field in the CAPWAP control header in the CAPWAP message. For example, Figure 3 The message type field shown in (a) in the figure.

[0171] Then, the first AP encapsulates the first message into a MAC frame, a user datagram protocol (UDP) frame, etc. The source address of the MAC frame and the UDP frame is the address of the first AP, and the destination address is the address of the AC. Optionally, the address can be a MAC address or an Internet protocol (IP) address, which is not limited.

[0172] S102. AC receives a first message.

[0173] Optionally, based on the CAPWAP link between the AC and the first AP, the AC receives a first message sent by the first AP and with the destination address being the AC address.

[0174] Optionally, after receiving the first message sent by the first AP, the AC sends a first response message to the first AP.

[0175] The first response message includes a first response flag and a response type identifier. The first response flag is used to indicate whether the first message is received, and the response type identifier is used to indicate that the first response message is a response message of the first message.

[0176] Optionally, the AC sends a first response message to the first AP based on the CAPWAP link between the AC and the first AP. In this case, the first response message is a CAPWAP message.

[0177] Optionally, the first response message carries the first response flag through the TLV in the CAPWAP message, and specifically the first response flag is carried by the value field of the TLV. Fig.11 , Fig.11 FIG. 1 shows a schematic diagram of a format of carrying a first response flag through a TLV value field provided by an embodiment of the present application. Fig.11As shown, the first response flag ( Fig.11 For example, when the value of ulErrCode is 0, it indicates that the first message is received successfully.

[0178] In addition, for the description of carrying the response type identifier in the CAPWAP message, reference may be made to the description of carrying the first type identifier in the CAPWAP message in S101, which will not be repeated herein.

[0179] The description of the AC encapsulating the first response message before sending the first response message can refer to the relevant description of the first AP encapsulating the first message, which will not be repeated here. It should be understood that the source address of the encapsulated first response message is the address of the AC, and the destination address is the address of the first AP.

[0180] S103. The AC sends a second message to the first AP, where the second message indicates to activate the target antenna with the target transmit power.

[0181] The target antenna is one of the at least two antennas reported by the first AP through the first message. The target transmit power is the antenna transmit power determined by the AC for the target antenna. The antenna transmit power of the target antenna specifically refers to the power of the signal to be transmitted input to the target antenna.

[0182] The second message includes a target transmit power and a second type identifier. The second type identifier is used to mark the current message carrying the second type identifier as a control message for indicating that the antenna configuration carried by the current message is effective. The second type identifier in the second message is used to mark the second message as a control message for indicating that the antenna configuration carried by the second message is effective.

[0183] Specifically, after the AC receives the first message sent by the first AP, the AC first determines that the first message carries the first type identifier, thereby determining that the first message is a message for reporting the antenna capability of the first AP.

[0184] Then the AC parses the first message, for example, according to Fig.10 The format shown parses the TLV of the first message to obtain the antenna identifier and quantity of each antenna configured in the first AP.

[0185] In a possible implementation, the first message includes an antenna identifier. In this case, the AC directly parses the first message to obtain the antenna identifiers of at least two antennas reported by the first AP through the first message, and determines the number of antenna identifiers carried in the first message as the number of the at least two antennas. For example, if the first message carries antenna identifiers a, b, c, d, and e, the AC determines that the first AP reports the five antennas configured by itself through the first message, and the antenna identifiers of the five antennas are a, b, c, d, and e, respectively.

[0186] In another possible implementation, the first message includes the number of antennas. In this case, the AC directly parses the first message to obtain the number of at least two antennas configured by the first AP, and determines the antenna identifier of each of the at least two antennas based on the number and the first preset strategy. The first preset strategy and the related description of determining the antenna identifier according to the first preset strategy and the number of antennas in the first message can be referred to the related description in S101, which will not be repeated here.

[0187] Optionally, when the AC determines that the number of antennas configured in the first AP is 1 based on the first message, the AC determines the only antenna configured in the first AP as the target antenna. The embodiment of the present application does not limit the process of how the AC determines the antenna transmit power that needs to be adjusted (such as increased or decreased) for the target antenna. After the AC determines the antenna transmit power that needs to be adjusted for the target antenna, the AC optionally sends a second message including the target transmit power to the first AP to instruct the first AP to adjust the current antenna transmit power of the target antenna to the target transmit power carried by the second message. Optionally, since the target antenna is the only antenna configured in the first AP, the antenna identifier of the target antenna may not be included in the second message. Optionally, the second message may include an antenna maintenance flag to indicate that the currently effective antenna is maintained unchanged. Among them, the description of how the second message carries the target transmit power and the antenna maintenance flag can be referred to the description below and will not be repeated here.

[0188] In another possible case, the AC determines from the first message that the number of antennas configured in the first AP is greater than 1. In this case, the AC determines the target antenna among the antennas configured in the first AP, and determines the antenna transmit power of the target antenna (referred to as target transmit power in this embodiment of the application).

[0189] Optionally, the AC determines the target antenna from the antennas configured by the first AP through a second preset strategy, and determines the transmit power of the target antenna. The second preset strategy is not specifically limited in the embodiment of the present application, for example, the second preset strategy may be a strategy set based on experience.

[0190] Optionally, the AC determines a target antenna and a target transmit power for the first AP based on the co-channel interference caused to other APs in the wireless access network when the first AP uses each antenna configured by itself at full power. For a detailed description of determining the target antenna and the target transmit power based on the co-channel interference caused to other APs in the wireless access network when the first AP uses each antenna configured by itself at full power, please refer to the description of S201 to S202 below, which will not be repeated here.

[0191] Then, when the AC determines that the currently effective antenna of the first AP is not the target antenna, the AC sends a second message including the target antenna identifier, the target transmit power, and the second type identifier to the first AP to instruct the first AP to validate the target antenna with the target transmit power. The target antenna identifier refers to the antenna identifier of the target antenna. When the AC determines that the currently effective antenna of the first AP is the target antenna, the AC sends a second message including the antenna maintenance flag, the target transmit power, and the second type identifier to the first AP to instruct the first AP to maintain the currently effective target antenna unchanged and adjust the transmit power of the target antenna to the target transmit power. The antenna maintenance flag is used to indicate that the currently effective antenna is maintained unchanged.

[0192] It should be understood that the AC can pre-acquire the antenna identifier of the antenna currently in effect at the first AP. For example, when the first AP accesses the wireless access network, it reports the antenna identifier of the antenna currently in effect (such as the default antenna described above) to the AC. In this way, the AC can determine whether the antenna currently in effect at the first AP is the target antenna based on the antenna identifier of the antenna currently in effect at the first AP and the antenna identifier of the target antenna.

[0193] Optionally, the AC sends two second messages to the first AP. The first second message carries the antenna identifier of the target antenna or the above-mentioned antenna maintenance flag, and the second second message is used to carry the target transmit power of the target antenna, which is not limited. In other words, the AC configures the antenna of the first AP through two second messages, one of which is used to select the antenna and the other is used to adjust the antenna transmit power.

[0194] Optionally, the AC may send the second message to the first AP based on the CAPWAP link between the AC and the first AP. In this case, the second message is a CAPWAP message.

[0195] Optionally, the second message carries the target antenna identifier and the target transmit power through the TLV in the CAPWAP message, and the target antenna identifier and the target transmit power are specifically carried by the value field of the TLV. Alternatively, the second message carries the antenna maintenance flag and the target transmit power through the TLV in the CAPWAP message, and the antenna maintenance flag and the target transmit power are specifically carried by the value field of the TLV.

[0196] As an example, refer to Fig.12 , Fig.12 A schematic diagram of a format for carrying an antenna identifier, an antenna maintenance flag, and an antenna transmission power through a TLV value field provided by an embodiment of the present application is shown.

[0197] like Fig.12 As shown, in the embodiment of the present application, the first 8-bit UCHAR field of the value field in the TLV carries the identification information ( Fig.12 (represented by AntIndex), different values ​​of AntIndex are used to characterize the antenna identifier or the antenna maintenance flag. Optionally, when the antenna identifier is set by the first preset strategy described above, and the antenna identifier is specifically represented by a number that increases continuously starting from the preset value, if AntIndex takes a value within the value range [preset value, the sum of the preset value and the number of antennas in the first AP), it means that AntIndex is used to characterize the antenna identifier. If AntIndex takes a value outside the value range [preset value, the sum of the preset value and the number of antennas in the first AP), it means that AntIndex is used to characterize the antenna maintenance flag. For example, assuming that the preset value is 0 and the number of antennas in the first AP is 5, if AntIndex takes a value within the value range [0, (0+5)), that is, [0, 5), it means that AntIndex is used to characterize the antenna identifier. If AntIndex takes a value outside the value range [0, 5) (for example, the value 6), it means that AntIndex is used to characterize the antenna maintenance flag.

[0198] like Fig.12 As shown, in the embodiment of the present application, the second 8-bit UCHAR field of the value field in the TLV carries the antenna transmission power ( Fig.12 Indicated by TxPowerLvl). Exemplarily, the antenna transmit power can be represented by a value of 1-100, and the value is specifically used to represent a percentage value, so as to represent the power of full power × percentage value. For example, when TxPowerLvl=1, the power size represented is 1% of the full power. For another example, when TxPowerLvl=50, the power size represented is 50% of the full power. For another example, when TxPowerLvl=100, the power size represented is 100% of the full power.

[0199] Optionally, in the TLV carrying the antenna identification / antenna maintenance flag and antenna transmit power, the value field also includes: Fig.12 The shown reserved (reverse) field includes a 16-bit unsigned short integer (USHORT), which is used to align the TLV to 4 bytes.

[0200] In addition, for the description of carrying the second type identifier in the CAPWAP message, reference may be made to the description of carrying the first type identifier in the CAPWAP message in S101, which will not be repeated herein.

[0201] It should be understood that the AC can generate and send the above-mentioned second message to the first AP when the first AP accesses the wireless access network, or when it is necessary to reduce the co-channel interference of the first AP to other APs, or when it is necessary to increase the signal coverage area of ​​the first AP, so as to adjust the signal coverage area and transmission power of the first AP antenna. Therefore, the method provided in the embodiment of the present application comprehensively considers the factors that the antenna transmission power and different antennas have different signal coverage areas, so that it can achieve the reduction of the co-channel interference caused by the first AP to other APs in the wireless access network, and can also maximize the signal coverage range and signal transmission quality of the first AP, thereby ensuring the communication quality of user equipment within the AP signal coverage range.

[0202] In addition, the description of the AC encapsulating the second message before sending the second message can refer to the relevant description of the first AP encapsulating the first message, which will not be repeated. It should be understood that the source address of the encapsulated second message is the address of the AC, and the destination address is the address of the first AP.

[0203] S104: The first AP receives the second message, and in response to the second message, activates the target antenna with the target transmit power.

[0204] Optionally, based on the CAPWAP link between the first AP and the AC, the first AP receives a second message sent by the AC and having a destination address that is the first AP MAC address.

[0205] Specifically, after the first AP receives the second message sent by the AC, the first AP first determines that the second message carries the second type identifier, thereby determining that the second message is a control message for instructing the antenna to take effect with the antenna configuration carried by the second message.

[0206] Then, the first AP parses the second message, for example, according to Fig.12 The format shown parses the TLV of the second message to obtain the target antenna identifier and the target transmit power, or obtains the antenna maintenance flag and the target transmit power mentioned above.

[0207] In one possible scenario, when the first AP parses the target antenna identifier and the target transmit power from the second message, the first AP validates the target antenna with the target transmit power. Specifically, the first AP switches the currently valid antenna to the target antenna, and sets the antenna transmit power of the target antenna to the target transmit power. In this way, the first AP starts to send and receive data through the target antenna, and the power of the signal sent by the first AP through the target antenna is the target transmit power.

[0208] In another possible situation, when the first AP parses the antenna maintenance flag and the target transmission power from the second message, the first AP maintains the currently effective target antenna unchanged and sets the antenna transmission power of the target antenna to the target transmission power.

[0209] In another possible scenario, the first AP receives two second messages. The first second message carries the antenna identifier or antenna maintenance flag of the target antenna, and the second second message carries the target transmit power. When the first AP parses the target antenna identifier from the first second message, the first AP switches the currently effective antenna to the target antenna. Alternatively, when the first AP parses the antenna maintenance flag from the first second message, the first AP maintains the currently effective target antenna unchanged. Furthermore, after the first AP parses the target transmit power from the second second message, it sets the antenna transmit power of the target antenna to the target transmit power.

[0210] S105 (optional): The first AP sends a third message to the AC, where the third message is used to notify whether the target antenna is successfully activated with the target transmission power.

[0211] After executing S104, the first AP sends a third message as a response message to the second message to the first AP, thereby informing the AC whether the target antenna is currently successfully validated with the target transmission power.

[0212] The third message includes a second response flag and a third type identifier. The second response flag is used to indicate whether the target antenna is successfully validated with the target transmission power, and the third type identifier is used to mark that the third message is a response message to the second message.

[0213] Optionally, based on the CAPWAP link between the first AP and the AC, the first AP sends a third message to the AC. In this case, the third message is a CAPWAP message.

[0214] Optionally, the third message carries the second response flag through the TLV in the CAPWAP message, and the second response flag is specifically carried by the value field of the TLV. Fig.11The format diagram of carrying the first response flag through the value field of TLV is shown and will not be repeated here.

[0215] In addition, for the description of carrying the third type identifier in the CAPWAP message, reference may be made to the description of carrying the first type identifier in the CAPWAP message in S101, which will not be repeated herein.

[0216] In addition, the description of the first AP encapsulating the third message before sending the third message can refer to the relevant description of the first AP encapsulating the first message, which will not be repeated. It should be understood that the source address of the encapsulated third message is the address of the first AP, and the destination address is the address of the AC.

[0217] Through the methods described in S101 to S105, when the AP in the wireless access network is configured with multiple antennas, the AC can control the AP through the CAPWAP message to set the appropriate antenna (i.e., the target antenna) as the effective antenna, and set the antenna transmission power of the effective antenna to the target transmission power. The method provided in the embodiment of the present application comprehensively considers the factors of different antenna transmission powers and different antennas having different signal coverage areas, so that it can achieve the maximum guarantee of the signal coverage range and signal transmission quality of the first AP on the basis of reducing the co-channel interference caused by the first AP to other APs in the wireless access network, thereby ensuring the communication quality of the user equipment within the signal coverage range of the first AP.

[0218] The following describes the process of "the AC determining the target antenna and the target transmission power according to the co-channel interference caused to other APs in the wireless access network when the first AP activates each antenna configured by itself at full power" .

[0219] refer to Fig.13 , Fig.13 A schematic diagram of a process for determining a target antenna and a target transmission power provided by an embodiment of the present application is shown. Optionally, the method is applied to Figure 6 The wireless access network shown in FIG. Figure 7 The AC hardware structure shown has Figure 8 The AP of the hardware structure shown executes the corresponding steps. The method includes the following steps S201-S202.

[0220] S201. The AC determines a first co-channel interference matrix according to each antenna reported by the first AP through a first message.

[0221] Among them, the first co-channel interference matrix is ​​the co-channel interference matrix corresponding to the first AP. The first co-channel interference matrix includes the interference intensity of the co-channel interference caused by the first AP to other APs when each antenna reported by the first AP itself takes effect at full power. The other APs are APs other than the first AP in the wireless access network. Here, the description of co-channel interference can refer to the above description and will not be repeated.

[0222] Specifically, the AC determines, based on each antenna reported by the first AP through the first message, the interference intensity of the co-channel interference caused by the first AP to the other APs when the first AP activates each antenna at full power, to obtain the first co-channel interference matrix.

[0223] The following describes a process in which the AC determines the interference intensity of the same-channel interference caused by the first AP to the above-mentioned other APs when the first AP uses the first antenna at full power, based on any antenna reported by the first AP through the first message, such as the first antenna. Fig.14 , the process includes steps S2011 to S2014.

[0224] S2011. The AC sends a first control message to the first AP to control the first AP to activate the first antenna at full power.

[0225] The first control message includes a transmission power indicating full power of the first AP and a second type identifier. The description of the second type identifier can refer to the relevant description in S103 above. It can be seen that, similar to the second message, the first control message is a control message for indicating that the antenna configuration carried by itself is effective.

[0226] Specifically, when the AC determines that the antenna currently in effect on the first AP is not the first antenna, the AC sends a first control message including the antenna identifier of the first antenna, the transmission power indicating the full power of the first AP, and the second type identifier to the first AP, so as to instruct the first AP to activate the first antenna at full power. The antenna identifier of the first antenna is obtained by the AC parsing from the first message.

[0227] When the AC determines that the currently effective antenna of the first AP is the first antenna, the AC sends a second message including an antenna maintenance flag, a transmission power indicating full power of the first AP, and a second type identifier to the first AP, so as to instruct the first AP to maintain the currently effective first antenna unchanged and adjust the transmission power of the first antenna to full power. The antenna maintenance flag is used to indicate that the currently effective antenna is maintained unchanged.

[0228] For the description of the AC determining whether the currently effective antenna of the first AP is the first antenna, reference may be made to the description of the AC determining whether the currently effective antenna of the first AP is the target antenna in S103, which will not be repeated here.

[0229] Optionally, the AC sends a first control message to the first AP based on the CAPWAP link between the AC and the first AP. In this case, the first control message is a CAPWAP message.

[0230] Among them, the instructions for carrying the antenna identifier, antenna maintenance flag, antenna transmit power and second type identifier in the first control message through the CAPWAP message can refer to the relevant description of carrying the antenna identifier, antenna maintenance flag, antenna transmit power and second type identifier in the second message through the CAPWAP message in S103, and will not be repeated here.

[0231] In addition, the description of the AC encapsulating the first control message before sending the first control message can refer to the relevant description of the first AP encapsulating the first message, which will not be repeated. It should be understood that the source address of the encapsulated first control message is the address of the AC, and the destination address is the address of the first AP.

[0232] S2012. The first AP responds to the first control message and activates the first antenna at full power.

[0233] The description of the first AP responding to the first control message to validate the first antenna at full power can refer to the description of the first AP responding to the second message to validate the target antenna at target transmit power in S104, which will not be repeated here.

[0234] Optionally, the first AP also sends a second response message to the AC, where the second response message is used to notify whether the first antenna is successfully enabled at full power.

[0235] The second response message is a response message to the first control message. For the description of the second response message, refer to the description of the third message in S105 above. For the description of the first AP sending the second response message to the AC, refer to the description of the first AP sending the third message to the AC in S105, which will not be repeated.

[0236] S2013. After the first AP successfully activates the first antenna at full power, the AC controls other APs in the wireless access network to start co-channel interference detection on the first AP to obtain the interference intensity of the co-channel interference caused by the first AP to other APs when the first AP activates the first antenna at full power.

[0237] Specifically, after the first AP successfully activates the first antenna at full power, the AC sends a startup message to other APs in the wireless access network, and the startup message is used to indicate the start of the same-channel interference detection for the first AP. The embodiment of the present application does not specifically limit the format / form of the startup message.

[0238] In response, after receiving the start message from the AC, other APs in the wireless access network start the co-channel interference detection for the first AP and report the interference intensity of the detected co-channel interference to the AC.

[0239] For example, in a wireless access network, in addition to the first AP, a second AP is included. After the second AP receives the startup message sent by the AC, the second AP performs co-channel interference detection on the first AP. Fig.15 , Fig.15 FIG. 2 shows a schematic diagram of a process in which a second AP performs co-channel interference detection on a first AP provided in an embodiment of the present application. Fig.15 As shown, the process includes steps 1 to 3.

[0240] Step 1: The second AP sends a detection signal to the first AP.

[0241] After receiving the startup message sent by the AC, the second AP starts to perform the same-channel interference detection process on the first AP. Then, the second AP sends a detection signal to the first AP.

[0242] Step 2: The first AP sends a detection reply signal to the second AP.

[0243] In response to the detection signal received from the second AP, the first AP sends a detection reply signal to the second AP through the first antenna currently effective at full power.

[0244] Step 3: The second AP determines the interference intensity of the co-channel interference caused by the first AP to the second AP according to the received detection reply signal.

[0245] The interference intensity of the co-channel interference caused by the first AP to the second AP refers to the intensity of the detection reply signal from the first AP detected by the second AP, which is represented by RSSI. In other words, the interference intensity of the co-channel interference caused by the first AP to the second AP is represented by RSSI.

[0246] When the RSSI representing the interference intensity of the co-channel interference caused by the first AP to the second AP is referred to as the RSSI of the second AP with respect to the first AP, the second AP can determine the RSSI of the second AP with respect to the first AP when the first AP uses the first antenna at full power based on the received detection reply signal. The embodiment of the present application does not specifically limit the specific implementation method of the second AP determining the RSSI based on the received detection reply signal.

[0247] Further, the second AP reports the RSSI of the first AP determined by itself to the AC.

[0248] Similarly, for other APs in the wireless access network except the first AP, each of the other APs can perform the process of step 1 to step 3, so that each AP can determine the RSSI of the first AP when the first AP uses the first antenna at full power. Then, each of the other APs reports the RSSI of the first AP determined by itself to the AC.

[0249] S2014. The AC receives co-channel interference detection results reported by other APs except the first AP in the wireless access network when the first AP activates the first antenna at full power.

[0250] Specifically, the co-channel interference detection result reported by the AC and other APs in the wireless access network except the first AP when the first AP uses full power to activate the first antenna is the interference intensity of the co-channel interference caused by the first AP to other APs in the wireless access network except the first AP when the first AP uses full power to activate the first antenna.

[0251] Similarly, by executing S2011 to S2014 for each antenna reported by the first AP through the first message, the interference intensity of the co-channel interference caused by the first AP to the above-mentioned other APs when each antenna of the first AP is effective at full power can be obtained, thereby obtaining the first co-channel interference matrix.

[0252] In an example, the first AP is AP 1 whose antennas reported by the first message include antenna 0 and antenna 1, and the wireless access network also includes AP 2 and AP 3. Fig.16 , Fig.16 A schematic diagram of an AC obtaining a first co-channel interference matrix according to an embodiment of the present application is shown.

[0253] like Fig.16 As shown, in Fig.16 In the aisle scenario shown, after executing S2011 to S2014 above for antenna 0 of AP 1, the AC can obtain: when AP 2 reports that antenna 0 of AP 1 is validated at full power, the RSSI of AP 1 on AP 2 is -72 decibels (decibel, db); and when AP 3 reports that antenna 0 of AP 1 is validated at full power, the RSSI of AP 1 on AP 3 is -73db. Similarly, after executing S2011 to S2014 above for antenna 1 of AP 1, the AC can obtain: when AP 2 reports that antenna 1 of AP 1 is validated at full power, the RSSI of AP 1 on AP 2 is -62db; and when AP 3 reports that antenna 1 of AP 1 is validated at full power, the RSSI of AP 1 on AP 3 is -60db. In this way, Fig.16 The data in the table shown can be called Fig.16The same-channel interference matrix (ie, the first same-channel interference matrix) corresponding to AP 1 in the corridor scenario is shown.

[0254] In another example, the first AP is an AP1 whose antennas reported by the first message include antenna 0 and antenna 1, and the wireless access network also includes AP 2, AP 3, AP 4, and AP 5. Fig.17 , Fig.17 A schematic diagram showing another AC obtaining a first co-channel interference matrix according to an embodiment of the present application.

[0255] like Fig.17 As shown, in Fig.17 In the large bay scenario shown, after executing S2011 to S2014 for antenna 0 of AP 1, the AC can obtain: when AP 2 reports that AP 1 uses antenna 0 at full power, the RSSI of AP 1 on AP 2 is -63 decibels (db); when AP 3 reports that AP 1 uses antenna 0 at full power, the RSSI of AP 1 on AP 3 is -61db; when AP 4 reports that AP 1 uses antenna 0 at full power, the RSSI of AP 1 on AP 4 is 0db; and when AP 5 reports that AP 1 uses antenna 0 at full power, the RSSI of AP 1 on AP 5 is -59db. The RSSI reported by AP 4 is 0db because the signal coverage area of ​​AP 4 does not overlap with the signal coverage area of ​​AP 1, so AP 4 and AP 1 cannot detect each other's data signals.

[0256] Similarly, after executing S2011 to S2014 for antenna 1 of AP 1, AC can obtain: when AP 2 reports that AP 1 uses antenna 1 with full power, the RSSI of AP 1 on AP 2 is -72db; when AP 3 reports that AP 1 uses antenna 1 with full power, the RSSI of AP 1 on AP 3 is -73db; when AP 4 reports that AP 1 uses antenna 1 with full power, the RSSI of AP 1 on AP 4 is 0db; and when AP 5 reports that AP 1 uses antenna 1 with full power, the RSSI of AP 1 on AP 5 is 0db. The RSSI reported by AP 4 and AP 5 are both 0db because the signal coverage area of ​​AP 4 does not overlap with the signal coverage area of ​​AP 1, so AP 4 and AP 1 cannot detect each other's data signals. The signal coverage area of ​​AP 5 does not overlap with the signal coverage area of ​​AP 1, so AP 5 and AP 1 cannot detect each other's data signals.

[0257] so, Fig.17 The data in the table shown can be called Fig.17The same-channel interference matrix (ie, the first same-channel interference matrix) corresponding to AP 1 in the large bay scenario is shown.

[0258] S202. The AC determines a target antenna and a target transmit power for the first AP according to a first co-channel interference matrix.

[0259] Specifically, the AC determines a target antenna and a target transmission power for the first AP according to the interference intensity recorded in the first co-channel interference matrix.

[0260] For any antenna reported by the first AP through the first message, such as the first antenna, the AC first determines the interference intensity with the maximum difference from the interference threshold among the interference intensities corresponding to the first antenna recorded in the first co-frequency interference matrix, and determines the interference intensity with the maximum difference from the interference threshold as the maximum interference difference intensity of the first antenna. Similarly, the AC determines the maximum interference difference intensity of each antenna reported by the first AP through the first message. Among the maximum interference difference intensity of each antenna reported by the first AP through the first message, the AC determines the maximum interference difference intensity with the minimum difference from the interference threshold as the target interference intensity, and determines the antenna corresponding to the target interference intensity as the target antenna. Among them, the description of the interference threshold can be referred to above and will not be repeated.

[0261] In other words, if the antennas in the first AP are divided into target antennas and other antennas except the target antennas, the first interference strength difference corresponding to the target antenna is less than the second interference strength difference corresponding to the other antennas. The first interference strength difference is the difference between the first interference strength and the interference threshold, and the first interference strength includes the interference strength of the same-channel interference caused by the first AP to other APs when the first AP activates the target antenna at full power. The second interference strength difference is the difference between the second interference strength and the interference threshold, and the second interference strength includes the interference strength of the same-channel interference caused by the first AP to other APs when the first AP activates other antennas at full power.

[0262] As an example, combining Fig.16 In the first co-channel interference matrix shown in FIG. 1 , when the interference threshold is -75db, for antenna 0 in AP 1, the two interference intensities corresponding to antenna 0 in the first co-channel interference matrix are respectively -72db and -73db, and AC determines that the differences between these two interference intensities and the interference threshold are respectively: (-72-(-75))=3db and (-73-(-75))=2b. Therefore, AC determines that the interference intensity -72db, which has the largest difference (i.e., 3db) from the interference threshold, is the maximum interference difference intensity of antenna 0.

[0263] Similarly, for antenna 1 in AP 1, AC determines that the differences between the two interference strengths corresponding to antenna 1 and the interference threshold are: (-62-(-75))=13db and (-60-(-75))=15db. Therefore, AC determines that the interference strength -60db, which has the largest difference (15db) from the interference threshold, is the maximum interference difference strength of antenna 1.

[0264] Then, among the maximum interference difference strength -72db of antenna 0 and the maximum interference difference strength -60db of antenna 1, AC determines the maximum interference difference strength -72db with the minimum difference (3db) with the interference threshold as the target interference strength, and determines antenna 0 corresponding to the target interference strength -72db as the target antenna.

[0265] As another example, combining Fig.17 In the first co-channel interference matrix shown in FIG. 1 , when the interference threshold is -65db, for antenna 0 in AP 1, the four interference intensities corresponding to antenna 0 in the first co-channel interference matrix are: -63db, -61db, 0db, and -59db, respectively. AC determines that the differences between these four interference intensities and the interference threshold are: (-63-(-65))=2db, (-61-(-65))=4db, and (-59-(-65))=6db. Among them, 0db does not participate in the difference calculation. Therefore, AC determines that the interference intensity -59db, which has the largest difference (i.e., 6db) with the interference threshold, is the maximum interference difference intensity of antenna 0.

[0266] Similarly, for antenna 1 in AP 1, AC determines that the differences between the four interference strengths corresponding to antenna 1 and the interference threshold are: (-72-(-65))=-7db, and (-73-(-65))=-8db. Among them, 0db does not participate in the difference calculation. Therefore, AC determines that the interference strength -72db, which has the largest difference (-7db) from the interference threshold, is the maximum interference difference strength of antenna 1.

[0267] Then, among the maximum interference difference strength of -59db for antenna 0 and the maximum interference difference strength of -72db for antenna 1, AC determines the maximum interference difference strength of -72db with the minimum difference (-7db) with the interference threshold as the target interference strength, and determines antenna 1 corresponding to the target interference strength of -72db as the target antenna.

[0268] It should be understood that in the first co-channel interference matrix, the interference intensity with the largest difference from the interference threshold is taken from the interference intensity generated by the same antenna, which can ensure that when the antenna transmit power of the antenna is lowered to reduce the maximum interference intensity to the interference threshold, the other interference intensities of the antenna must also be lower than the interference threshold. Among the interference intensities generated by different antennas (i.e., the maximum interference difference intensity mentioned above), the interference intensity with the smallest difference from the interference threshold is taken as the target interference intensity, which can achieve the minimum reduction in antenna transmit power when the target interference intensity is reduced to the interference threshold. Therefore, when the antenna corresponding to the target interference intensity is determined as the target antenna, compared with other antennas in the AP, when the target interference intensity of the target antenna is reduced to the interference threshold, the antenna transmit power of the target antenna is reduced the least. In this way, on the basis of reducing the co-channel interference caused by the AP, the scheme also maximizes the antenna transmit power of the AP, that is, it guarantees the signal coverage range and signal transmission quality of the antenna in the AP, thereby ensuring the communication quality of the user equipment within the AP signal coverage range.

[0269] Furthermore, in a possible situation, when the first AP uses full power to implement each of the above-reported antennas, there is a situation where the co-channel interference intensity of the first AP to other APs is lower than the interference threshold, then the target transmission power of the first AP is determined to be full power.

[0270] As an example, combining Fig.17 , when it is determined that the target antenna is antenna 1, the target interference intensity is -72db, and the interference threshold is -65db, the AC will use the interference intensity difference between the target interference intensity and the interference threshold (-72-(-65)) = -7db. It can be seen that the target interference intensity is lower than the interference threshold, so the co-channel interference caused by the target interference intensity will not cause AP to send and receive data errors, and the AP will not seize the air interface. In this case, the AC will determine the target transmission power based on the power of the target interference intensity, that is, the target transmission power is the full power of the first AP. Therefore, the target transmission power in the second message can be expressed as 100.

[0271] In another possible situation, when the first AP fully powers each of the above-reported antennas, the co-channel interference intensity of the first AP to other APs is higher than the interference threshold, and the target transmission power determined by the AC is: when the target antenna is effective in the first AP, the interference intensity of the co-channel interference caused by the first AP to other APs in the wireless access network is the interference threshold, and the transmission power of the target antenna. In other words, when the first AP powers the target antenna at a certain power, the interference intensity of the co-channel interference caused by the first AP to other APs in the wireless access network is the interference threshold, and the AC determines the antenna transmission power of the target antenna at this time as the target transmission power.

[0272] Specifically, the AC determines the target transmission power according to the interference intensity difference between the target interference intensity and the interference threshold, wherein the interference intensity difference between the target interference intensity and the interference threshold is the interference intensity that needs to be adjusted when the target interference intensity is adjusted to the interference threshold.

[0273] More specifically, the AC determines the transmit power difference corresponding to the interference strength difference when the target interference strength is adjusted to the interference threshold as the target transmit power. In this case, the target transmit power is the power difference to be adjusted.

[0274] As an example, combining Fig.16 , when it is determined that the target antenna is antenna 0, the target interference intensity is -72db, and the interference threshold is -75db, the transmission power difference corresponding to the interference intensity difference between the target interference intensity and the interference threshold (-72-(-75)) = 3db is determined as the target transmission power. According to the current conversion method of signal strength and power, the power difference corresponding to the signal strength of 3db is 50% of the antenna transmission power (i.e., full power) corresponding to -72db. Therefore, the target transmission power in the second message can be expressed as 50. It can be seen that in this case, the target transmission power is the power difference to be adjusted. In other examples, the target transmission power is the result power of adjusting the antenna transmission power, which is not limited to this.

[0275] Through the method described in S201 to S202, the AC can determine the target antenna and target transmission power that not only has weak co-channel interference but also has a relatively large signal coverage range among all antennas reported by the first AP through the first message. Then, the AC can control the first AP to switch the currently effective antenna to the target antenna through S103 to S105, and set the antenna transmission power of the target antenna to the target transmission power. This can not only reduce the co-channel interference of the first AP to other APs, but also maximize the signal coverage range and signal transmission quality of the first AP, thereby ensuring the communication quality of user devices within the signal coverage range of the first AP.

[0276] In some embodiments, when the wireless access network includes multiple APs, the embodiments of the present application execute the above-mentioned S101~S105 and S201~S202 for each AP in sequence, so as to determine the target antenna and target transmission power for each AP, and control each AP to activate the target antenna with the target transmission power.

[0277] Take the wireless access network including AC, AP 1 and AP 2 as an example. Fig.18 , Fig.18 FIG. 2 is a flow chart of another antenna configuration method provided in an embodiment of the present application. Fig.18 As shown, AP 1 and AP 2 each execute S101 to report their own antenna capabilities to the AC.

[0278] First, for AP 1, AC executes S201-S202 to determine the target antenna and target transmission power of AP 1, and then AC executes S103. Then, AP 1 executes S104-S105, thereby completing the process of AC configuring the antenna for AP 1.

[0279] Next, for AP 2, AC executes S201-S202 to determine the target antenna and target transmission power of AP 2, and then AC executes S103. Then, AP 2 executes S104-S105, thereby completing the process of AC configuring the antenna for AP 2.

[0280] In other embodiments, when the wireless access network includes multiple APs, after the APs in the wireless access network respectively execute S101 to report their own antenna capabilities, the embodiment of the present application first determines the co-channel interference matrix of each AP, and then traverses each AP in turn to execute S103 to S105 for each AP, thereby realizing the process of the AC configuring the antenna for each AP in the wireless access network. That is, before the above-mentioned AC sends the second message to the first AP to instruct the first AP to activate the target antenna with the target transmission power, the method of the embodiment of the present application also determines the co-channel interference matrix corresponding to each AP in the wireless access network except the first AP. Among them, for any AP in the wireless access network except the first AP, such as the second AP, the co-channel interference matrix corresponding to the second AP includes: when each antenna configured in the second AP is effective at full power, the interference intensity of the co-channel interference caused by the second AP to the APs in the wireless access network except the second AP.

[0281] In this way, when the method of the embodiment of the present application is executed during the networking process of the wireless access network, since the default antenna that is generally effective for each AP in the wireless access network is an omnidirectional antenna, by first determining the co-channel interference matrix of each AP and then controlling and adjusting the antenna and antenna transmission power of each AP, it is possible to avoid the situation where the interference intensity detected by the other APs is not the maximum when the AP with the adjusted antenna and antenna transmission power (i.e., the AP with a non-omnidirectional antenna in effect) detects the co-channel interference caused by the AP to other APs, thereby avoiding loopholes between the signal coverage areas of the various APs in the wireless access network after the antenna and antenna transmission power are finally adjusted, thereby avoiding the problem that the signal coverage area of ​​the wireless access network cannot completely cover the area where the user equipment is located.

[0282] refer to Fig.19 , Fig.19 A schematic diagram of a method flow chart of another antenna configuration method provided in an embodiment of the present application is shown. Optionally, the method is applied to Figure 6 The wireless access network shown in FIG. Figure 7 The AC hardware structure shown has Figure 8 The AP of the hardware structure shown executes the corresponding steps. The method includes the following steps S301 to S303.

[0283] S301. Each AP in a wireless access network sends a first message to an AC to report its antenna capability.

[0284] For any AP in the wireless access network, the AP sends a first message to the AC to report the AP antenna capability. For an explanation of the process, reference may be made to the description of S101 and will not be repeated here.

[0285] refer to Fig. 20 , Fig. 20 FIG. 2 shows a schematic diagram of a process of an AP reporting antenna capability provided by an embodiment of the present application. Fig. 20 As shown in the figure, after AP 1 goes online and accesses the wireless access network, AP 1 reports the antenna capability to the AC. Similarly, after AP 2 goes online and accesses the wireless access network, AP 2 also reports the antenna capability to the AC.

[0286] S302: The AC traverses each AP in the wireless access network to determine a co-channel interference matrix corresponding to each AP.

[0287] Exemplarily, the AC first determines the co-channel interference matrix corresponding to AP 1 in the wireless access network, then determines the co-channel interference matrix corresponding to AP 2 in the wireless access network, then determines the co-channel interference matrix corresponding to AP 3 in the wireless access network, and so on.

[0288] For any AP in the wireless access network, the AC determines the co-channel interference matrix corresponding to the AP. For an explanation of the process, please refer to the description of S201, which will not be repeated here.

[0289] Optionally, after determining the co-channel interference matrix corresponding to each AP, the AC can determine the target antenna and target transmit power of each AP according to the determined co-channel interference matrix. Exemplarily, after the AC determines the co-channel interference matrix 1 corresponding to AP 1, the target antenna and target transmit power of AP 1 are determined according to the co-channel interference matrix 1. For another example, after the AC determines the co-channel interference matrix 2 corresponding to AP 2, the target antenna and target transmit power of AP 2 are determined according to the co-channel interference matrix 2. No further details are given.

[0290] For a description of the process of determining the target antenna and target transmission power of the AP according to the co-channel interference matrix corresponding to the AP, reference may be made to the description of S202 and will not be repeated here.

[0291] S303: After determining the co-channel interference matrix corresponding to each AP, the AC traverses each AP in the wireless access network to control each AP to activate its own target antenna with its own target transmission power.

[0292] Exemplarily, the AC controls AP 1 in the wireless access network to enable the target antenna of AP 1 at the target transmit power of AP 1, then controls AP 2 in the wireless access network to enable the target antenna of AP 2 at the target transmit power of AP 2, then controls AP 3 in the wireless access network to enable the target antenna of AP 3 at the target transmit power of AP 3, and so on.

[0293] For any AP in the wireless access network, the AC controls the AP to use the target transmit power of the AP to validate the target antenna of the AP. For the description of S103 to S105, no further details are given.

[0294] Optionally, if in S302, the AC does not determine the target antenna and target transmit power of each AP after determining the co-channel interference matrix corresponding to each AP, then in S303, the AC controls the AP in the wireless access network to use the target transmit power of the AP before the target antenna of the AP takes effect, and first determines the target antenna and target transmit power of the AP based on the co-channel interference matrix corresponding to the AP. For the description of the process of determining the target antenna and target transmit power of the AP according to the co-channel interference matrix corresponding to the AP, please refer to the description of S202 and will not be repeated here.

[0295] Through the methods of S301 to S303, when a wireless access network includes multiple APs, the method can first determine the co-channel interference matrix of each AP after the APs in the wireless access network report their own antenna capabilities respectively, and then traverse each AP in turn to control each AP to activate its own target antenna with its own target transmission power, thereby completing the process of configuring the antenna of each AP. When the initial effective antenna of each AP in the wireless access network before executing the method of the embodiment of the present application is an omnidirectional antenna, it can be avoided that when the AP based on the adjusted antenna and antenna transmission power detects the co-channel interference caused by the AP to other APs, the interference intensity detected by the other APs is not the maximum, thereby avoiding the loopholes between the signal coverage areas of each AP after the antenna and antenna transmission power are finally adjusted in the wireless access network, which leads to the problem that the signal coverage area of ​​the wireless access network cannot completely cover the area where the user equipment is located.

[0296] To deepen the understanding of the method described in S301 to S303, the method is further described below by using examples.

[0297] Take the wireless access network including AC, AP 1, AP 2 and AP 3 as an example. Fig.21 , Fig.21 A schematic diagram of a method flow chart of another antenna configuration method provided in an embodiment of the present application is shown. Optionally, the method comprises: Figure 7 The AC hardware structure shown has Figure 8The AP of the hardware structure shown executes the corresponding steps.

[0298] like Fig.21 As shown in (a) in FIG. 1 , after the antenna configuration process is started, AP 1, AP 2, and AP 3 respectively send first messages to AC to report their respective antenna capabilities. Here, AP 1 reports all antennas configured by itself by sending the first message to AC. Similarly, AP 2 reports all antennas configured by itself by sending the first message to AC, and AP 3 reports all antennas configured by itself by sending the first message to AC.

[0299] Next, the method described in the embodiment of the present application traverses AP 1, AP 2 and AP 3 for the first time.

[0300] In the process of traversing AP 1, AP 2, and AP 3, for a certain AP in the wireless access network (such as any one of AP 1, AP 2, or AP 3), the method described in the embodiment of the present application traverses each antenna configured in the AP to determine the interference intensity of the same-channel interference caused by each antenna to other APs when the full power is effective in the AP. Taking the AP as AP 1, and AP 1 configured with antenna 1 as an example, the process of determining the interference intensity of the same-channel interference caused by AP 1 to AP 2 and AP 3 when AP 1 uses antenna 1 at full power is as follows: Fig.21 As shown in (b) in the figure. Specifically, AC first controls AP 1 to activate antenna 1 at full power. For specific instructions, please refer to the description of S2011 and will not be repeated here. Then, AC controls AP 2 and AP 3 to start co-channel interference detection for AP 1, so that AP 2 detects the interference intensity of the co-channel interference from AP 1, and AP 3 detects the interference intensity of the co-channel interference from AP1. For specific instructions, please refer to the description of S2013-S2014 and will not be repeated here.

[0301] If the traversal of antennas in an AP is not completed, each antenna configured in the AP will continue to be traversed to determine the interference intensity of the same-channel interference caused by the AP to other APs when each antenna is fully effective in the AP. When the traversal of antennas in an AP is completed, the same-channel interference matrix corresponding to the AP can be constructed.

[0302] When the first traversal of AP 1, AP 2, and AP 3 is not completed, AP 1, AP 2, and AP 3 are continuously traversed. When the first traversal of AP 1, AP 2, and AP 3 is completed, the co-channel interference matrix corresponding to AP 1, the co-channel interference matrix corresponding to AP 2, and the co-channel interference matrix corresponding to AP 3 are obtained.

[0303] After obtaining the co-channel interference matrices corresponding to AP 1, AP 2, and AP 3, the method described in the embodiment of the present application traverses AP 1, AP 2, and AP 3 for the second time, and during the traversal process, for a certain AP in the wireless access network (such as any one of AP 1, AP 2, or AP 3), the AC controls the AP to activate the target antenna of the AP with the target transmit power of the AP, thereby completing the configuration process of the antenna in the AP. For detailed description, please refer to the description of S103 to S104, which will not be repeated here.

[0304] When the second traversal of AP 1, AP 2, and AP 3 is not completed, the traversal of AP 1, AP 2, and AP 3 continues. When the traversal of AP 1, AP 2, and AP 3 is completed, the process of configuring the antennas of AP 1, AP 2, and AP 3 is completed.

[0305] The above mainly introduces the solution provided in the embodiment of the present application from the perspective of method.

[0306] In order to achieve the above functions, Fig. 22 As shown, Fig. 22 The schematic diagram of the structure of an antenna configuration device 2200 provided in an embodiment of the present application is shown. The antenna configuration device 2200 is applied to an AC in a wireless access network, and the wireless access network also includes multiple APs that use the same channel to transmit data, and the multiple APs include a first AP. The antenna configuration device 2200 is used to execute the above-mentioned antenna configuration method, for example, to execute Fig. 9 , Fig.13 , Fig.14 , Fig.15 , Fig.18 , Fig.19 , Fig. 20 or Fig.21 The part of the method shown in the figure that is executed by AC. The antenna configuration device 2200 may include a receiving unit 2201 and a sending unit 2202.

[0307] The receiving unit 2201 is used to receive a first message sent by the first AP, where the first message is used to report at least two antennas configured in the first AP, where the signal coverage area of ​​the first antenna of the at least two antennas is different from the signal coverage area of ​​the second antenna of the at least two antennas. The sending unit 2202 is used to send a second message to the first AP, where the second message indicates that the target antenna is effective with a target transmit power. The target antenna is one of the at least two antennas mentioned above, and the target transmit power is the power of the signal to be transmitted input to the target antenna.

[0308] As an example, combining Fig. 9 , the receiving unit 2201 can be used to execute S102, and the sending unit 2202 can be used to execute S103.

[0309] Optionally, the receiving unit 2201 is further used to receive a third message sent by the first AP, where the third message is used to notify whether the target antenna is successfully validated with the target transmission power.

[0310] As an example, combining Fig. 9 , the receiving unit 2201 can be used to respond to S105.

[0311] Optionally, the first message, the second message and the third message are CAPWAP messages.

[0312] Optionally, the first message includes a first type identifier, and the first type identifier is used to mark that the first message is a message for reporting at least two antennas configured in the first AP. The second message includes a second type identifier, and the second type identifier is used to mark that the second message is a control message for indicating that the antenna configuration carried by the second message is effective. The third message includes a third type identifier, and the third type identifier is used to mark that the third message is a response message to the second message.

[0313] Optionally, the first type identifier is carried in the message type field of the first message and / or the type field of the TLV in the first message. The second type identifier is carried in the message type field of the second message and / or the type field of the TLV in the second message. The third type identifier is carried in the message type field of the third message and / or the type field of the TLV in the third message.

[0314] Optionally, the first message includes the number of the at least two antennas, which is used to determine the antenna identifier of each of the at least two antennas, and the number is carried in the TLV of the first message. The second message includes the antenna identifier and the target transmit power of the target antenna, or the second message includes the antenna maintenance flag and the target transmit power. The antenna identifier, antenna maintenance flag and target transmit power of the target antenna are carried in the TLV of the second message. The antenna maintenance flag indicates that the currently effective antenna is maintained unchanged.

[0315] Optionally, the antenna configuration device 2200 also includes: a processing unit 2203, which is used to determine a first co-channel interference matrix according to each of the at least two antennas before sending the second message to the first AP, and determine the target antenna and target transmission power for the first AP according to the first co-channel interference matrix. The first co-channel interference matrix includes the interference intensity of the co-channel interference caused by the first AP to other APs when the first AP validates each antenna at full power, and the other APs are APs other than the first AP in the wireless access network. The first interference intensity difference corresponding to the target antenna is less than the second interference intensity difference corresponding to the other antennas, and the other antennas are antennas other than the target antenna among the at least two antennas. The first interference intensity difference is the difference between the first interference intensity and the interference threshold, and the first interference intensity includes the interference intensity of the co-channel interference caused by the first AP to other APs when the first AP validates the target antenna at full power. The second interference intensity difference is the difference between the second interference intensity and the interference threshold, and the second interference intensity includes the interference intensity of the co-channel interference caused by the first AP to other APs when the first AP validates other antennas at full power. The target transmission power is: when the target antenna takes effect in the first AP, the transmission power of the target antenna when the interference intensity of the co-channel interference caused by the first AP to other APs is the interference threshold.

[0316] As an example, combining Fig.13 , the processing unit 2203 can be used to execute S201~S202.

[0317] Optionally, the antenna configuration device 2200 also performs the following processing for the first antenna configured in the first AP until the same processing is performed on each antenna configured in the first AP to obtain the co-channel interference detection results reported by other APs when the first AP validates each antenna at full power: the sending unit 2202 is also used to send a first control message to the first AP to control the first AP to validate the first antenna at full power. The processing unit 2203 is also used to control other APs in the wireless access network except the first AP to start co-channel interference detection for the first AP. The receiving unit 2201 is also used to receive the co-channel interference detection results reported by the aforementioned other APs when the first AP validates the first antenna at full power. The processing unit 2203 is also used to determine the first co-channel interference matrix based on the co-channel interference detection results reported by the aforementioned other APs when the first AP validates each antenna at full power.

[0318] As an example, combining Fig.14 , the sending unit 2202 can be used to execute S2011, the processing unit 2203 can be used to execute S2013, and the receiving unit 2201 can be used to execute S2014.

[0319] Optionally, the processing unit 2203 is configured to determine, before sending the second message to the first AP, a co-channel interference matrix corresponding to each AP in other APs except the first AP in the wireless access network. Wherein, for a second AP in the aforementioned other APs, the co-channel interference matrix corresponding to the second AP includes: when each antenna configured in the second AP is effective at full power, the interference intensity of the co-channel interference caused by the second AP to the APs other than the second AP in the wireless access network.

[0320] As an example, combining Fig.19 , the processing unit 2203 can be used to execute S302.

[0321] Optionally, the first AP is configured with multiple antennas, including omnidirectional antennas and directional antennas.

[0322] For the detailed description of the above optional methods, please refer to the above method embodiments, which will not be repeated here. In addition, the explanation and description of the beneficial effects of any of the above antenna configuration devices 2200 can refer to the above corresponding method embodiments, which will not be repeated here.

[0323] As an example, combining Figure 7 The functions implemented by the receiving unit 2201 and the sending unit 2202 in the antenna configuration device 2200 can be realized by Figure 7 The functions implemented by the processing unit 2203 can be realized by Figure 7 Processor 701 in the Figure 7 The program code in the memory 702 is implemented.

[0324] like Fig.23 As shown, Fig.23 The schematic diagram of the structure of an antenna configuration device 2300 provided in an embodiment of the present application is shown. The antenna configuration device 2300 is applied to a first AP among multiple APs that use the same channel to transmit data in a wireless access network, and the wireless access network also includes an AC. The antenna configuration device 2300 is used to execute the above-mentioned antenna configuration method, for example, to execute Fig. 9 , Fig.13 , Fig.14 , Fig.15 , Fig.18 , Fig.19 , Fig. 20 or Fig.21 The part of the method shown is executed by the first AP. The antenna configuration device 2300 may include a sending unit 2301 , a receiving unit 2302 , and a processing unit 2303 .

[0325] A sending unit 2301 is used to send a first message to an AC, where the first message is used to report at least two antennas configured in a first AP, where the signal coverage area of ​​the first antenna of the at least two antennas is different from the signal coverage area of ​​the second antenna of the at least two antennas. A receiving unit 2302 is used to receive a second message sent by the AC, where the second message indicates that a target antenna is validated with a target transmit power, where the target antenna is one of the at least two aforementioned antennas, and the target transmit power is the power of a signal to be transmitted input to the target antenna. A processing unit 2303 is used to validate the target antenna with the target transmit power in response to the second message.

[0326] As an example, combining Fig. 9 , the sending unit 2301 can be used to execute S101, and the receiving unit 2302 and the processing unit 2303 can be used to execute S104.

[0327] Optionally, the sending unit 2301 is further used to send a third message to the AC, where the third message is used to notify whether the target antenna is successfully validated with the target sending power.

[0328] As an example, combining Fig. 9 , the sending unit 2301 can be used to execute S105.

[0329] Optionally, the first message, the second message and the third message are CAPWAP messages.

[0330] Optionally, the first message includes a first type identifier, and the first type identifier is used to mark that the first message is a message for reporting at least two antennas configured in the first AP. The second message includes a second type identifier, and the second type identifier is used to mark that the second message is a control message for indicating that the antenna configuration carried by the second message is effective. The third message includes a third type identifier, and the third type identifier is used to mark that the third message is a response message to the second message.

[0331] Optionally, the first type identifier is carried in the message type field of the first message and / or the type field of the TLV in the first message. The second type identifier is carried in the message type field of the second message and / or the type field of the TLV in the second message. The third type identifier is carried in the message type field of the third message and / or the type field of the TLV in the third message.

[0332] Optionally, the first message includes the number of the at least two antennas, which is used to determine the antenna identifier of each of the at least two antennas, and the number is carried in the TLV of the first message. The second message includes the antenna identifier and the target transmit power of the target antenna, or the second message includes the antenna maintenance flag and the target transmit power. The antenna identifier, antenna maintenance flag and target transmit power of the target antenna are carried in the TLV of the second message. The antenna maintenance flag indicates that the currently effective antenna is maintained unchanged.

[0333] Optionally, the first interference strength difference corresponding to the target antenna is smaller than the second interference strength difference corresponding to other antennas, and the other antennas are antennas other than the target antenna among the at least two antennas mentioned above. The first interference strength difference is the difference between the first interference strength and the interference threshold, and the first interference strength includes the interference strength of the co-channel interference caused by the first AP to other APs when the first AP activates the target antenna at full power. The second interference strength difference is the difference between the second interference strength and the interference threshold, and the second interference strength includes the interference strength of the co-channel interference caused by the first AP to other APs when the first AP activates other antennas at full power. The target transmit power is: the transmit power of the target antenna when the interference strength of the co-channel interference caused by the first AP to other APs when the target antenna is activated in the first AP is the interference threshold.

[0334] Optionally, the first AP is configured with multiple antennas, including omnidirectional antennas and directional antennas.

[0335] For the detailed description of the above optional methods, please refer to the above method embodiments, which will not be repeated here. In addition, the explanation and description of the beneficial effects of any antenna configuration device 2300 provided above can refer to the above corresponding method embodiments, which will not be repeated here.

[0336] As an example, combining Figure 8 The functions implemented by the transmitting unit 2301 and the receiving unit 2302 in the antenna configuration device 2300 can be realized by Figure 8 The functions implemented by the processing unit 2303 can be realized by the wireless communication module 803 or the network interface 805. Figure 8 Processor 801 in the Figure 8 The program code in the memory 802 is implemented.

[0337] Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0338] It should be noted that Fig. 22 and Fig.23 The division of modules in the example is schematic and is only a logical function division. There may be other division methods in actual implementation. For example, two or more functions may be integrated into one processing module. The above integrated modules may be implemented in the form of hardware or software function modules.

[0339] The present application also provides a computer program product and a computer-readable storage medium for storing the computer program product. The computer program product may include one or more program instructions, which, when executed by one or more processors, can provide the above Fig. 9 , Fig.13 , Fig.14 , Fig.15 , Fig.18 , Fig.19 , Fig. 20 or Fig.21 Thus, for example, reference to Fig. 9 One or more features of S101 to S105 may be undertaken by one or more instructions in the computer program product.

[0340] In some examples, such as for executing Fig. 9 , Fig.13 , Fig.14 , Fig.15 , Fig.18 , Fig.19 , Fig. 20 or Fig.21 The antenna configuration apparatus of the illustrated method may be configured to provide various operations, functions, or actions in response to one or more program instructions stored in a computer-readable storage medium.

[0341] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using a software program, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When executing instructions on a computer and executing a computer, a process or function according to an embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. Computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server, data center, etc. that contains one or more servers that can be integrated with a medium. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a solid state disk (SSD)).

[0342] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An antenna configuration method, characterized in that: Applied to a wireless access network, the wireless access network includes an access controller AC and multiple wireless access points AP that use the same channel to transmit data, the multiple APs include a first AP, and the method is performed by the AC; the method includes: receiving a first message sent by the first AP, where the first message is used to report at least two antennas configured in the first AP, where a signal coverage area of ​​a first antenna of the at least two antennas is different from a signal coverage area of ​​a second antenna of the at least two antennas; A second message is sent to the first AP, where the second message indicates to activate a target antenna with a target transmit power, where the target antenna is one of the at least two antennas, and the target transmit power is the power of a signal to be transmitted input to the target antenna.

2. The method according to claim 1, characterized in that The method further comprises: A third message sent by the first AP is received, where the third message is used to notify whether the target antenna is successfully enabled with the target transmission power.

3. The method according to claim 2, characterized in that The first message, the second message and the third message are CAPWAP messages, which are control and configuration protocol for wireless access points.

4. The method according to claim 2 or 3, characterized in that: The first message includes a first type identifier, where the first type identifier is used to mark that the first message is a message used to report at least two antennas configured in the first AP; The second message includes a second type identifier, where the second type identifier is used to mark that the second message is a control message for indicating an antenna with the antenna configuration carried by the second message being effective; The third message includes a third type identifier, and the third type identifier is used to mark that the third message is a response message of the second message.

5. The method according to claim 4, characterized in that The first type identifier is carried in the message type field of the first message and / or the type field of the type length value TLV in the first message, the second type identifier is carried in the message type field of the second message and / or the type field of the TLV in the second message, and the third type identifier is carried in the message type field of the third message and / or the type field of the TLV in the third message.

6. The method according to any one of claims 1 to 5, characterized in that: The first message includes the number of the at least two antennas, where the number is used to determine the antenna identifier of each antenna in the at least two antennas, and the number is carried in the TLV of the first message; The second message includes the antenna identifier of the target antenna and the target transmit power, or the second message includes an antenna maintenance flag and the target transmit power, and the antenna maintenance flag indicates that the currently effective antenna is maintained unchanged; The antenna identifier of the target antenna, the antenna maintenance flag, and the target transmit power are carried in the TLV of the second message.

7. The method according to any one of claims 1 to 6, characterized in that Before sending the second message to the first AP, the method further includes: Determine a first co-channel interference matrix according to each antenna of the at least two antennas, wherein the first co-channel interference matrix includes interference intensity of co-channel interference caused by the first AP to other APs when the first AP activates each antenna at full power, and the other APs are APs other than the first AP in the wireless access network; Determine the target antenna and the target transmit power for the first AP according to the first co-channel interference matrix; Among them, the first interference strength difference corresponding to the target antenna is smaller than the second interference strength difference corresponding to other antennas, and the other antennas are antennas other than the target antenna among the at least two antennas; the first interference strength difference is the difference between the first interference strength and the interference threshold, and the first interference strength includes the interference strength of the co-channel interference caused by the first AP to the other APs when the first AP activates the target antenna at full power; the second interference strength difference is the difference between the second interference strength and the interference threshold, and the second interference strength includes the interference strength of the co-channel interference caused by the first AP to the other APs when the first AP activates the other antennas at full power; the target transmit power is: the transmit power of the target antenna when the interference strength of the co-channel interference caused by the first AP to the other APs when the target antenna is activated in the first AP is the interference threshold.

8. The method according to claim 7, characterized in that The determining of a first co-channel interference matrix according to each antenna of the at least two antennas comprises: The following processing is performed for a first antenna among the at least two antennas until the same processing is performed on each of the at least two antennas to obtain a co-channel interference detection result reported by the other APs when the first AP activates each antenna at full power: Sending a first control message to the first AP to control the first AP to activate the first antenna at full power; Controlling the other APs to start co-channel interference detection on the first AP; receiving the same-channel interference detection results reported by the other APs when the first AP uses the first antenna at full power; The first co-channel interference matrix is ​​determined according to the co-channel interference detection results reported by the other APs when the first AP activates each antenna at full power.

9. The method according to any one of claims 1 to 8, characterized in that Before sending the second message to the first AP, the method further includes: Determine the co-channel interference matrix corresponding to each AP among the other APs except the first AP in the wireless access network; wherein, for a second AP among the other APs, the co-channel interference matrix corresponding to the second AP includes: when each antenna configured in the second AP is effective at full power, the interference intensity of the co-channel interference caused by the second AP to the APs other than the second AP in the wireless access network.

10. An antenna configuration method, characterized in that: The method is applied to a wireless access network, wherein the wireless access network includes an access controller AC and multiple wireless access points AP that use the same channel to transmit data, wherein the multiple APs include a first AP, and the method is performed by the first AP; the method includes: Sending a first message to the AC, where the first message is used to report at least two antennas configured in the first AP, where a signal coverage area of ​​a first antenna of the at least two antennas is different from a signal coverage area of ​​a second antenna of the at least two antennas; receiving a second message sent by the AC, where the second message indicates a target antenna to be activated with a target transmit power, where the target antenna is one of the at least two antennas, and the target transmit power is the power of a signal to be transmitted input to the target antenna; In response to the second message, the target antenna is activated at the target transmit power.

11. The method according to claim 10, characterized in that The method further comprises: A third message is sent to the AC, where the third message is used to notify whether the target antenna is successfully enabled with the target transmission power.

12. The method according to claim 11, characterized in that The first message, the second message and the third message are CAPWAP messages, which are control and configuration protocol for wireless access points.

13. The method according to claim 11 or 12, characterized in that: The first message includes a first type identifier, where the first type identifier is used to mark that the first message is a message used to report at least two antennas configured in the first AP; The second message includes a second type identifier, where the second type identifier is used to mark that the second message is a control message for indicating an antenna with the antenna configuration carried by the second message being effective; The third message includes a third type identifier, and the third type identifier is used to mark that the third message is a response message of the second message.

14. The method according to claim 13, characterized in that The first type identifier is carried in the message type field of the first message and / or the type field of the type length value TLV in the first message, the second type identifier is carried in the message type field of the second message and / or the type field of the TLV in the second message, and the third type identifier is carried in the message type field of the third message and / or the type field of the TLV in the third message.

15. The method according to any one of claims 10 to 14, characterized in that The first message includes the number of the at least two antennas, where the number is used to determine the antenna identifier of each antenna in the at least two antennas, and the number is carried in the TLV of the first message; The second message includes the antenna identifier of the target antenna and the target transmit power, or the second message includes an antenna maintenance flag and the target transmit power, and the antenna maintenance flag indicates that the currently effective antenna is maintained unchanged; The antenna identifier of the target antenna, the antenna maintenance flag, and the target transmit power are carried in the TLV of the second message.

16. The method according to any one of claims 10 to 15, characterized in that The first interference strength difference corresponding to the target antenna is smaller than the second interference strength difference corresponding to other antennas, and the other antennas are antennas other than the target antenna among the at least two antennas; Among them, the first interference intensity difference is the difference between the first interference intensity and the interference threshold, and the first interference intensity includes the interference intensity of the co-channel interference caused by the first AP to the other APs when the first AP activates the target antenna at full power; the second interference intensity difference is the difference between the second interference intensity and the interference threshold, and the second interference intensity includes the interference intensity of the co-channel interference caused by the first AP to the other APs when the first AP activates the other antennas at full power; the target transmit power is: when the target antenna is activated in the first AP, the interference intensity of the co-channel interference caused by the first AP to the other APs is the interference threshold, and the transmit power of the target antenna.

17. An antenna configuration device, characterized in that: An access controller AC applied to a wireless access network, wherein the wireless access network further comprises a plurality of wireless access points AP that use the same channel to transmit data, wherein the plurality of APs comprises a first AP, and the device comprises: a receiving unit, configured to receive a first message sent by the first AP, wherein the first message is used to report at least two antennas configured in the first AP, wherein a signal coverage area of ​​a first antenna of the at least two antennas is different from a signal coverage area of ​​a second antenna of the at least two antennas; A sending unit is used to send a second message to the first AP, where the second message indicates a target antenna to be effective with a target sending power, where the target antenna is one of the at least two antennas, and the target sending power is the power of a signal to be sent input to the target antenna.

18. The device according to claim 17, characterized in that The receiving unit is further used to receive a third message sent by the first AP, where the third message is used to notify whether the target antenna is successfully enabled with the target transmission power.

19. The device according to claim 18, characterized in that The first message, the second message and the third message are CAPWAP messages, which are control and configuration protocol for wireless access points.

20. The device according to claim 18 or 19, characterized in that The first message includes a first type identifier, where the first type identifier is used to mark that the first message is a message used to report at least two antennas configured in the first AP; The second message includes a second type identifier, where the second type identifier is used to mark that the second message is a control message for indicating an antenna with the antenna configuration carried by the second message being effective; The third message includes a third type identifier, and the third type identifier is used to mark that the third message is a response message of the second message.

21. The device according to claim 20, characterized in that The first type identifier is carried in the message type field of the first message and / or the type field of the type length value TLV in the first message, the second type identifier is carried in the message type field of the second message and / or the type field of the TLV in the second message, and the third type identifier is carried in the message type field of the third message and / or the type field of the TLV in the third message.

22. The device according to any one of claims 17 to 21, characterized in that The first message includes the number of the at least two antennas, where the number is used to determine the antenna identifier of each antenna in the at least two antennas, and the number is carried in the TLV of the first message; The second message includes the antenna identifier of the target antenna and the target transmit power, or the second message includes an antenna maintenance flag and the target transmit power, and the antenna maintenance flag indicates that the currently effective antenna is maintained unchanged; The antenna identifier of the target antenna, the antenna maintenance flag, and the target transmit power are carried in the TLV of the second message.

23. The device according to any one of claims 17 to 22, characterized in that The device also includes: A processing unit, configured to determine a first co-channel interference matrix according to each of the at least two antennas before sending a second message to the first AP, and determine the target antenna and the target transmit power for the first AP according to the first co-channel interference matrix; wherein, The first co-channel interference matrix includes the interference intensity of co-channel interference caused by the first AP to other APs when the first AP activates each antenna at full power, and the other APs are APs other than the first AP in the wireless access network; The first interference strength difference corresponding to the target antenna is smaller than the second interference strength difference corresponding to other antennas, and the other antennas are antennas other than the target antenna among the at least two antennas; the first interference strength difference is the difference between the first interference strength and the interference threshold, and the first interference strength includes the interference strength of the co-channel interference caused by the first AP to the other APs when the first AP activates the target antenna at full power; the second interference strength difference is the difference between the second interference strength and the interference threshold, and the second interference strength includes the interference strength of the co-channel interference caused by the first AP to the other APs when the first AP activates the other antennas at full power; the target transmit power is: the transmit power of the target antenna when the interference strength of the co-channel interference caused by the first AP to the other APs when the target antenna is activated in the first AP is the interference threshold.

24. The device according to claim 23, characterized in that The device further performs the following processing on a first antenna of the at least two antennas until the same processing is performed on each of the at least two antennas to obtain a co-channel interference detection result reported by the other APs when the first AP activates each antenna at full power: The sending unit is further configured to send the first control message to the first AP to control the first AP to activate the first antenna at full power; The processing unit is further used to control the other APs to start co-channel interference detection on the first AP; The receiving unit is further used to receive the same-channel interference detection results reported by the other APs when the first AP uses the first antenna at full power; The processing unit is further configured to determine the first co-channel interference matrix according to co-channel interference detection results reported by the other APs when the first AP activates each antenna at full power.

25. The device according to any one of claims 17 to 24, characterized in that The device also includes: A processing unit is used to determine, before sending a second message to the first AP, a co-channel interference matrix corresponding to each AP in the wireless access network other than the first AP; wherein, for a second AP among the other APs, the co-channel interference matrix corresponding to the second AP includes: when each antenna configured in the second AP is effective at full power, the interference intensity of the co-channel interference caused by the second AP to the APs in the wireless access network other than the second AP.

26. An antenna configuration device, characterized in that: The device is applied to a first AP among a plurality of wireless access points AP that use the same channel to transmit data in a wireless access network, wherein the wireless access network further includes an access controller AC; the device includes: a sending unit, configured to send a first message to the AC, where the first message is used to report at least two antennas configured in the first AP, where a signal coverage area of ​​a first antenna of the at least two antennas is different from a signal coverage area of ​​a second antenna of the at least two antennas; a receiving unit, configured to receive a second message sent by the AC, wherein the second message indicates a target antenna to be activated with a target transmit power, the target antenna being one of the at least two antennas, and the target transmit power being a power of a signal to be transmitted input to the target antenna; A processing unit is used to respond to the second message and activate the target antenna with the target transmission power.

27. The device according to claim 26, characterized in that The sending unit is further used to send a third message to the AC, where the third message is used to notify whether the target antenna is successfully activated with the target sending power.

28. The device according to claim 27, characterized in that The first message, the second message and the third message are CAPWAP messages, which are control and configuration protocol for wireless access points.

29. The device according to claim 27 or 28, characterized in that The first message includes a first type identifier, where the first type identifier is used to mark that the first message is a message used to report at least two antennas configured in the first AP; The second message includes a second type identifier, where the second type identifier is used to mark that the second message is a control message for indicating an antenna with the antenna configuration carried by the second message being effective; The third message includes a third type identifier, and the third type identifier is used to mark that the third message is a response message of the second message.

30. The device according to claim 29, characterized in that The first type identifier is carried in the message type field of the first message and / or the type field of the type length value TLV in the first message, the second type identifier is carried in the message type field of the second message and / or the type field of the TLV in the second message, and the third type identifier is carried in the message type field of the third message and / or the type field of the TLV in the third message.

31. The device according to any one of claims 26 to 30, characterized in that The first message includes the number of the at least two antennas, where the number is used to determine the antenna identifier of each antenna in the at least two antennas, and the number is carried in the TLV of the first message; The second message includes the antenna identifier of the target antenna and the target transmit power, or the second message includes an antenna maintenance flag and the target transmit power, and the antenna maintenance flag indicates that the currently effective antenna is maintained unchanged; The antenna identifier of the target antenna, the antenna maintenance flag, and the target transmit power are carried in the TLV of the second message.

32. The device according to any one of claims 26 to 31, characterized in that The first interference strength difference corresponding to the target antenna is smaller than the second interference strength difference corresponding to other antennas, and the other antennas are antennas other than the target antenna among the at least two antennas; Among them, the first interference intensity difference is the difference between the first interference intensity and the interference threshold, and the first interference intensity includes the interference intensity of the co-channel interference caused by the first AP to the other APs when the first AP activates the target antenna at full power; the second interference intensity difference is the difference between the second interference intensity and the interference threshold, and the second interference intensity includes the interference intensity of the co-channel interference caused by the first AP to the other APs when the first AP activates the other antennas at full power; the target transmit power is: when the target antenna is activated in the first AP, the interference intensity of the co-channel interference caused by the first AP to the other APs is the interference threshold, and the transmit power of the target antenna.

33. An antenna configuration device, characterized in that: include: A memory, a network interface and one or more processors, wherein the one or more processors receive or send data through the network interface, and the one or more processors are configured to read program instructions stored in the memory to execute the method according to any one of claims 1 to 9 or claims 10 to 16.

34. An antenna configuration system, characterized in that: The system includes an access controller AC and multiple wireless access points AP that use the same channel to transmit data, the multiple APs include a first AP; the AC is used to execute the method as described in any one of claims 1 to 9, and the first AP is used to execute the method as described in any one of claims 10 to 16, so as to enable the first AP to activate a target antenna with a target transmit power, the target antenna is one of at least two antennas configured in the first AP, and the target transmit power is the power of the signal to be sent input to the target antenna.

35. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes program instructions, and when the program instructions are executed on a computer or a processor, the computer or the processor executes the method of any one of claims 1 to 9 or claims 10 to 16.

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