CN113810131B

CN113810131B - Neighbor detection method, communication device, computer-readable storage medium and chip

Info

Publication number: CN113810131B
Application number: CN202010556410.XA
Authority: CN
Inventors: 俞居正; 马志
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2023-01-06
Anticipated expiration: 2040-06-17
Also published as: CN113810131A

Abstract

The utility model provides a neighbor detection method and a communication device, which relate to the communication field and can establish a relatively complete and accurate neighbor relation for an AP. The method comprises the following steps: the access point can also send a channel detection instruction to the terminal equipment to instruct the terminal equipment to detect the channel with the neighbor detection failure. The channel detection indication comprises a channel identifier, and a channel corresponding to the channel identifier is a channel which fails to be detected by the access point neighbor; the access point may also receive the sounding results for the channel from the terminal device.

Description

Neighbor detection method, communication device, computer-readable storage medium and chip

Technical Field

The present application relates to the field of communications, and in particular, to a neighbor detection method and a communication apparatus.

Background

In a Wireless Local Area Network (WLAN), an Access Point (AP) may acquire a Basic Service Set Identifier (BSSID) sent by another AP through channel probing to discover a neighbor AP. The neighbor AP can be recommended to the terminal equipment as a better roaming target, the frequency spectrum resources can be fully utilized by considering the neighbor AP when the radio frequency parameters are adjusted, and load balance can be realized among a plurality of APs.

However, under the influence of a network environment, an AP may not necessarily detect a neighbor AP with a close physical distance, and the establishment of the neighbor relation is incomplete, so that the accuracy of radio frequency management may be affected, and problems of common frequency of air interfaces between neighboring APs, high delay of a terminal, low rate and the like may be caused.

Disclosure of Invention

The application provides a neighbor detection method and a communication device, which can establish a relatively complete and accurate neighbor relation for an AP as far as possible.

In a first aspect, a neighbor detection method is provided, including: the access point can switch channels to perform neighbor detection, and the access point can also send a channel detection instruction to the terminal device to instruct the terminal device to detect the channels with the neighbor detection failure. The channel detection indication comprises a channel identifier, and a channel corresponding to the channel identifier is a channel which is failed in neighbor detection of the access point; the access point may also receive the sounding results for the channel from the terminal device.

In the method provided by the application, the AP can send the identifier of the channel with the neighbor detection failure to the terminal equipment, and the terminal equipment detects the channel with the neighbor detection failure so as to determine the neighbor AP of the AP according to the detection result. The method is not limited by the network environment among the APs, and a more accurate and complete neighbor relation table can be constructed. More accurate management can be realized by means of accurate and complete neighbor relations, for example, load balancing is realized through neighbor APs, the neighbor APs are recommended to be roaming objects, channel co-frequency between the neighbor APs is avoided, and experience of terminal equipment is improved.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the detection result includes: a correspondence of the signal strength value and the basic service set identity. The signal strength value is used to characterize the channel quality, and may be a received channel strength value, for example, a received channel strength value measured by the terminal device.

The application also provides specific implementation of the detection result, and provides a basis for determining the neighbor AP. Whether the AP where the BSS corresponding to the basic service set identifier is located is a neighbor AP may be determined according to the basic service set identifier, or whether the AP where the BSS corresponding to the basic service set identifier is located is a neighbor AP may be determined according to the service set identifier and a signal strength value corresponding to the service set identifier.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the method further includes: the access point sends a detection result to the WLAN control equipment; the access point receives from the WLAN control device an identification of the neighbors of the access point based on the probing result.

In the method provided by the present application, the access point may report the detection result of the terminal device to the WLAN control device, so that the WLAN control device finds a potential air interface neighbor according to the detection result of the terminal device, for example, an air interface neighbor that is not found by the access point in a network environment.

With reference to the first aspect or the first or second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the channel corresponding to the channel identifier is a channel supported by the terminal device.

In the method provided by the application, the access point can screen out the channels supported by the terminal equipment from the channels with failed neighbor detection, instruct the terminal equipment to detect the channels, and discover potential empty neighbors of the access point while not colliding with the capability of the terminal equipment.

With reference to the first aspect or any one of the first to third possible implementation manners of the first aspect, in a fourth possible implementation manner of the first aspect, the channel identifier includes a first channel identifier and a second channel identifier, and a channel corresponding to the first channel identifier and a channel corresponding to the second channel identifier belong to different frequency bands.

In the method provided by the application, the detection of the duplex channel is supported, so as to discover potential air-interface neighbors of the access point.

In a second aspect, a neighbor detection method is provided, including: the WLAN controller receives a detection result of a channel from an access point, wherein the channel is a channel for which the access point fails to detect a neighbor node; the WLAN controller may determine the neighbors of the access point according to the detection result; the WLAN controller may also send the access point an identification of the neighbor.

In the method provided by the application, the WLAN controller may obtain a detection result of the channel, that is, a result of the terminal device detecting the channel in which the neighbor detection fails. The WLAN controller may also determine the AP's neighbor APs based on the probing results. The method is not limited by the network environment among the APs, and a more accurate and complete neighbor relation table can be constructed. More accurate management can be achieved by means of accurate and complete neighbor relations, for example, load balancing is achieved through neighbor APs, the neighbor APs are recommended to be roaming objects, channel co-frequency between the neighbor APs is avoided, and experience of terminal equipment is improved.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the detection result includes a correspondence between the signal strength value and the basic service set identifier. The signal strength value is used to characterize the channel quality, and may be a received channel strength value, for example, a received channel strength value measured by the terminal device.

The application also provides specific implementation of the detection result, and provides a basis for determining the neighbor AP. Whether the AP where the BSS corresponding to the basic service set identifier is located is a neighbor AP may be determined according to the basic service set identifier, or whether the AP where the BSS corresponding to the basic service set identifier is located is a neighbor AP may be determined according to the service set identifier and a received signal strength value corresponding to the service set identifier.

With reference to the second aspect or the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the method further includes: the WLAN controller obtains a signal strength value between the terminal device and the access point from the access point.

In the method provided by the application, the WLAN controller may further receive a signal strength value between the terminal device and the currently accessed AP, so as to provide a reference for the decision of the air interface neighbor.

With reference to the second aspect or the first or second possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the determining, by the WLAN controller, the neighbor of the access point according to the detection result includes: the WLAN controller determines that the access point corresponding to the basic service set identification is a neighbor.

In the method provided by the present application, the access point corresponding to the basic service set identifier in the detection result may be directly determined as an air interface neighbor of the access point.

With reference to the second aspect or the first or second possible implementation manner of the second aspect, in a fourth possible implementation manner of the second aspect, the determining, by the WLAN controller, a neighbor of the access point according to the detection result includes: the WLAN controller determines a first basic service set identifier corresponding to a signal strength value which is greater than a first threshold value in the detection result; the WLAN controller determines that the access point corresponding to the first basic service set identifier is a neighbor.

In the method provided by the present application, an access point with better channel quality (for example, higher signal strength value) may be determined as an air interface neighbor of the access point according to a detection result.

With reference to the second possible implementation manner of the second aspect, in a fifth possible implementation manner of the second aspect, the first basic service set identifier corresponding to the signal strength value that is greater than the first threshold value in the detection result is determined, and if the signal strength value between the terminal device and the access point is greater than the second threshold, the access point corresponding to the first basic service set identifier is determined to be a neighbor.

In the method provided by the present application, if the RSSI between the access point and the terminal device is high, which indicates that the channel condition is good, the air interface neighbor of the access point may be determined according to the measurement result reported by the terminal device.

With reference to the second possible implementation manner of the second aspect, in a sixth possible implementation manner of the second aspect, the determining, by the WLAN controller, the neighbor of the access point according to the detection result includes: determining a signal strength value between the terminal equipment and the access point and a weighted average value of each signal strength value in the detection result, and determining a second basic service set identifier corresponding to the weighted average value which is greater than a third threshold; and determining that the access point corresponding to the second basic service set identification is a neighbor.

In the method provided by the application, the air interface neighbor of the access point can be determined according to the RSSI between the access point and the terminal equipment and the RSSI between the terminal equipment and the potential neighbor AP.

In a third aspect, a communication apparatus is provided, including: the processing unit is used for generating a channel detection instruction, the channel detection instruction comprises a channel identifier, and a channel corresponding to the channel identifier is a channel which is failed in neighbor detection of the access point; a communication unit, configured to send a channel sounding indication to a terminal device; the communication unit is further configured to receive a sounding result of the channel from the terminal device.

With reference to the third aspect, the detection result in the third aspect includes: a correspondence of the signal strength value and the basic service set identity. The signal strength value is used to characterize the channel quality, and may be a received channel strength value, for example, a received channel strength value measured by the terminal device.

With reference to the third aspect or the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the communication unit is further configured to send a probe result to the WLAN control device; an identification of a neighbor of the access point based on the probing result is received from the WLAN control device.

With reference to the third aspect or the first or second possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, the channel corresponding to the channel identifier is a channel supported by the terminal device.

With reference to the third aspect or any one of the first to third possible implementation manners of the third aspect, in a fourth possible implementation manner of the third aspect, the channel identifier includes a first channel identifier and a second channel identifier, and a channel corresponding to the first channel identifier and a channel corresponding to the second channel identifier belong to different frequency bands.

In a fourth aspect, a communication apparatus is provided, which may be a terminal device or a component in a terminal device. The communication apparatus includes: a communication unit, configured to receive a detection result of a channel from an access point, where the channel is a channel in which the access point fails to detect a neighbor node; the processing unit is used for determining the neighbors of the access point according to the detection result; the communication unit is further configured to send an identification of the neighbor to the access point.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the detection result includes a correspondence between the signal strength value and the basic service set identifier. The signal strength value is used to characterize the channel quality, and may be a received channel strength value, for example, a received channel strength value measured by the terminal device.

With reference to the fourth aspect or the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the communication unit is further configured to obtain, from the access point, a signal strength value between the terminal device and the access point.

With reference to the fourth aspect or the first or second possible implementation manner of the fourth aspect, in a third possible implementation manner of the fourth aspect, the processing unit is specifically configured to determine that the access point corresponding to the basic service set identifier is a neighbor.

With reference to the fourth aspect or any one of the first to third possible implementation manners of the fourth aspect, in a third possible implementation manner of the fourth aspect, the processing unit is specifically configured to determine a first basic service set identifier corresponding to a signal strength value that is greater than a first threshold value in the detection result; and determining that the access point corresponding to the first basic service set identification is a neighbor.

With reference to the second possible implementation manner of the fourth aspect, in a fifth possible implementation manner of the fourth aspect, the processing unit is specifically configured to determine a first basic service set identifier corresponding to a signal strength value that is greater than a first threshold value in the detection result, and if the signal strength value between the terminal device and the access point is greater than a second threshold value, determine that the access point corresponding to the first basic service set identifier is a neighbor.

With reference to the second possible implementation manner of the fourth aspect, in a sixth possible implementation manner of the fourth aspect, the processing unit is specifically configured to determine a weighted average value of a signal strength value between the terminal device and the access point and each signal strength value in the detection result, and determine a second basic service set identifier corresponding to the weighted average value greater than a third threshold; and determining that the access point corresponding to the second basic service set identification is a neighbor.

In a fifth aspect, a communications apparatus is provided that includes at least one processor and a memory, the at least one processor coupled with the memory; the memory for storing a computer program;

the at least one processor is configured to execute the computer program stored in the memory to cause the apparatus to perform the method according to any one of the implementations of the first aspect and the first aspect described above, or the method according to any one of the implementations of the second aspect and the second aspect described above.

In a sixth aspect, a computer-readable storage medium is provided, comprising: the computer readable storage medium has instructions stored therein; when the computer readable storage medium is run on the communication apparatus according to any one of the above third aspect and third aspect implementation manners, the communication apparatus is caused to perform the communication method according to any one of the above first aspect and first aspect implementation manners.

In a seventh aspect, a computer-readable storage medium is provided, comprising: the computer readable storage medium has instructions stored therein; when the computer readable storage medium is run on the communication apparatus according to any one of the above-mentioned fourth aspect and fourth aspect, the communication apparatus is caused to perform the communication method according to any one of the above-mentioned second aspect and second aspect.

In an eighth aspect, a wireless communication device is provided, where the communication device includes a processor, and is applied to a communication device, for example, a system on a chip, to implement the method of the first aspect and any one implementation manner of the first aspect. In a possible implementation, the chip system further comprises a memory for storing program instructions and data necessary for implementing the functions of the method according to the first aspect.

A ninth aspect provides a wireless communication device, which includes a processor, and is applied to a communication device, for example, a chip system, to implement the functions or methods according to the second aspect and any implementation manner of the second aspect. In a possible implementation manner, the chip system further comprises a memory, and the memory is used for storing program instructions and data which are necessary for realizing the functions of the method of the second aspect.

The system-on-chip in the above aspect may be a system-on-chip (SOC), a baseband chip, and the like, where the baseband chip may include a processor, a channel encoder, a digital signal processor, a modem, an interface module, and the like.

A tenth aspect provides a communication system, which includes the communication apparatus and the terminal device described in any one of the third aspect, any one of the possible implementation manners of the third aspect, and any one of the possible implementation manners of the fourth aspect and the fourth aspect.

Drawings

Fig. 1 is an architecture diagram of a communication system provided in an embodiment of the present application;

fig. 2 is another architecture diagram of a communication system according to an embodiment of the present application;

fig. 3 is another architecture diagram of a communication system provided by an embodiment of the present application;

fig. 4 is a schematic diagram of neighbor detection provided in an embodiment of the present application;

fig. 5 is a block diagram of a communication device according to an embodiment of the present disclosure;

fig. 6 is a schematic flowchart of a neighbor detection method according to an embodiment of the present application;

fig. 7 is another schematic flow chart of a neighbor detection method according to an embodiment of the present application;

fig. 8 to 11 are block diagrams of another structure of the communication device according to the embodiment of the present application.

Detailed Description

Fig. 1 is a schematic diagram of a communication system to which the technical solution provided in the present application is applicable, where the communication system may include at least one AP (fig. 1 shows AP 10 and AP 20) and at least one terminal device (fig. 1 shows only terminal device 30). The terminal device 30 can access an upper network, such as a core network or the internet, through the AP. Fig. 1 is a schematic diagram, and does not limit the application scenarios of the technical solutions provided in the present application.

Among them, APs (e.g., AP 10 and AP 20) are common devices for establishing a wireless lan, and can be considered as a bridge connecting a network and a wireless network. The AP may convert the electrical signal into a radio signal and transmit the radio signal out, forming a coverage of the wireless network. The terminal device can establish wireless connection with the AP and connect the Ethernet through the AP.

For example, referring to fig. 2, the communication system shown in fig. 1 may further include a device 40, and the AP 10 and the AP 20 may be interconnected through the device 40, where the device 40 may be a switch (switch) or other AP. The device 40 has the functions of routing table management, data packet forwarding and the like.

Optionally, referring to fig. 3, the communication system shown in fig. 1 may further include a WLAN controller responsible for managing all APs. For example, the AP may be radio frequency managed and the STA may be authorized. The radio frequency management comprises the steps of setting transmission power for an AP, allocating a working channel, configuring an air interface neighbor and the like; the authorization management comprises the management of user access authority and mode, the management of user access authority, the management of user roaming and the like. Different working channels can be allocated to the empty neighbors, and the same frequency of the neighbor APs is avoided; or, configuring the transmission power for the AP according to the neighbor relationship, so as to avoid that the transmission power of the AP is too large, and the neighbor APs cause large interference, which results in poor roaming initiative of the terminal device. The WLAN controller may be an Access Controller (AC) or may be a central AP.

The terminal device (for example, the terminal device 30) is a device with a wireless transceiving function, and can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; can also be deployed on the water surface (such as a ship and the like); and may also be deployed in the air (e.g., airplanes, balloons, satellites, etc.). The terminal device may be a workstation (Station), a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a vehicle-mounted terminal device, a wireless terminal in self-driving (self-driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety, a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), a wearable terminal device, and the like. The embodiments of the present application do not limit the application scenarios. A terminal may also be referred to as a terminal device, user Equipment (UE), access terminal device, in-vehicle terminal, industrial control terminal, UE unit, UE station, mobile station, remote terminal device, mobile device, UE terminal device, wireless communication device, UE agent, or UE device, among others. The terminals may also be fixed or mobile. The terminal device of the present application may also be an on-board module, an on-board component, an on-board chip, or an on-board unit built into the vehicle as one or more components or units, and the vehicle may implement the method of the present application through the built-in on-board module, on-board component, on-board chip, or on-board unit.

First, terms related to the embodiments of the present application are explained:

(1) Basic service set (basic service set, BSS)

An AP may include one or more radio entities, one radio entity corresponding to one or more BSSs, which provide services to terminals. Therefore, one AP may correspond to a plurality of BSSs. In addition, one radio frequency entity operates in one channel X, and all BSSs corresponding to the radio frequency entity correspond to the channel X. Among them, the BSS has a unique identification called Basic Service Set Identification (BSSID).

In the embodiment of the present application, a BSS included in one AP may be considered as a BSS corresponding to the AP, and the AP may be referred to as an AP where the BSS is located. The BSSID of the BSS may also be considered to correspond to the AP. For example, AP1 includes BSS1, bss1 is identified as BSSID 1, and then the AP corresponding to BSSID 1 is said AP 1.

(2) Neighbor AP

Neighbor APs generally refer to APs that are logically topologically closer together. Among them, the AP which is closer to the AP logical topology may be understood as the AP with higher received signal strength. In one possible implementation, the neighbor APs may be physically close APs.

The neighbor APs may be recommended to the user as roaming objects. For example, the AP2 is a neighbor AP of the AP1, and the terminal device may access the upper network through the AP1, and when the terminal device roams from the coverage of the AP1 to the coverage of the AP2, the terminal device may access the upper network through the AP 2.

(3) Neighbor detection

After the working channel finishes data transmission, the AP can be switched to other channels for neighbor detection. For example, whether the neighbor AP exists is detected by means of Passive scanning (Passive Scan) or Active scanning (Active Scan).

For example, referring to fig. 4, the operating channel of the ap is channel 1, and the ap may switch to channel 2, channel 3, or channel 4 for neighbor detection.

Taking channel 2 as an example, the AP may listen to Beacon (Beacon) frames on channel 2 in a passive scanning manner, and the Beacon frames may carry basic service set information sent by other APs. The basic service set information includes, but is not limited to, BSSID, load condition of BSS, transmission power of BSS, and the like. The load condition of the BSS may be the load of the BSS itself, or may be the load of the radio frequency where the BSS is located; the transmission power of the BSS may be the transmission power of the BSS itself or may be the transmission power of the radio frequency in which the BSS is located.

The active scanning mode, that is, the AP may send a Probe Request (Probe Request) frame on the channel 2, and after receiving the Probe Request frame on the channel 2, the other APs send basic service set information on the channel 2.

The AP may discover neighbor APs based on the acquired basic service set information.

Since WLAN deployment is typically indoors, there may be occlusions between APs that cannot be detected even by physically close APs. Illustratively, in the communication system shown in fig. 1, there is a barrier between AP 10 and AP 20. The AP 10 cannot detect the AP 20, so that the AP 10 cannot establish a complete neighbor relationship. Furthermore, the WLAN controller cannot perform power adjustment, channel allocation, etc. according to the exact neighbor relation. The co-frequency of different APs may be caused, so that the experience of the terminal device is deteriorated, or the transmission power of the AP is excessively high, so that the roaming initiative of the terminal device is deteriorated.

The embodiment of the application provides a neighbor detection method, an AP can send an identifier of a channel with neighbor detection failure to a terminal device, and the terminal device detects the channel with neighbor detection failure so as to determine a neighbor AP of the AP according to a detection result. The method is not limited by the network environment among the APs, and a more accurate and complete neighbor relation table can be constructed. More accurate management can be achieved by means of accurate and complete neighbor relations, for example, load balancing is achieved through neighbor APs, the neighbor APs are recommended to be roaming objects, channel co-frequency between the neighbor APs is avoided, and experience of terminal equipment is improved.

The method provided by the embodiment of the present application is applicable to the communication device 50 shown in fig. 5. As shown in fig. 5, the communication device 50 includes at least one processor 501, at least one memory 502, at least one transceiver 503, at least one network interface 504, and one or more antennas 505. The processor 501, memory 502, transceiver 503 and network interface 504 are coupled, for example, via a bus. An antenna 505 is connected to the transceiver 503. The network interface 504 is used for connecting the communication device to other communication equipment via a communication link, for example, the communication device is connected to a core network element via an S1 interface. In the embodiment of the present application, the connection may include various interfaces, transmission lines, buses, and the like, which is not limited in this embodiment. Alternatively, communication device 50 may not include memory 502.

The processors in the embodiments of the present application, for example, the processor 501, may include at least one of the following types: a general Processing Unit (CPU), a Digital Signal Processor (DSP), a microprocessor, an Application-Specific Integrated Circuit (ASIC), a Microcontroller (MCU), a Field Programmable Gate Array (FPGA), or an Integrated Circuit for implementing logic operations. For example, the processor 501 may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. The at least one processor 501 may be integrated in one chip or located on multiple different chips.

The memory in the embodiment of the present application, for example, the memory 502, may include at least one of the following types: read-only memory (ROM) or other types of static memory devices that may store static information and instructions, random Access Memory (RAM) or other types of dynamic memory devices that may store information and instructions, and may also be Electrically erasable programmable read-only memory (EEPROM). In some scenarios, the memory may also be, but is not limited to, a compact disk-read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact disk, laser disk, optical disk, digital versatile disk, blu-ray disk, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.

The memory 502 may be separate and coupled to the processor 501. Optionally, the memory 502 may also be integrated with the processor 501, for example, within one chip. The memory 502 can store program codes for executing the technical solutions of the embodiments of the present application, and the processor 501 controls the execution of the program codes, and various executed computer program codes can also be regarded as drivers of the processor 501. For example, the processor 501 is configured to execute the computer program code stored in the memory 502, so as to implement the technical solution in the embodiment of the present application.

The transceiver 503 may be used to support the reception or transmission of radio frequency signals between the communication device and the terminal equipment, and the transceiver 503 may be connected to an antenna 505. In particular, one or more antennas 505 may receive a radio frequency signal, and the transceiver 503 may be configured to receive the radio frequency signal from the antenna, convert the radio frequency signal into a digital baseband signal or a digital intermediate frequency signal, and provide the digital baseband signal or the digital intermediate frequency signal to the processor 501, so that the processor 501 performs further processing on the digital baseband signal or the digital intermediate frequency signal, such as demodulation processing and decoding processing. In addition, the transceiver 503 may be used to receive a modulated digital baseband signal or digital intermediate frequency signal from the processor 501, convert the modulated digital baseband signal or digital intermediate frequency signal to a radio frequency signal, and transmit the radio frequency signal via the one or more antennas 505. Specifically, the transceiver 503 may selectively perform one or more stages of down-mixing and analog-to-digital conversion processes on the rf signal to obtain a digital baseband signal or a digital intermediate frequency signal, and the sequence of the down-mixing and analog-to-digital conversion processes is adjustable. The transceiver 503 may selectively perform one or more stages of up-mixing and digital-to-analog conversion processes on the modulated digital baseband signal or the digital intermediate frequency signal to obtain the radio frequency signal, where the order of the up-mixing and the digital-to-analog conversion processes is adjustable. The digital baseband signal and the digital intermediate frequency signal may be collectively referred to as a digital signal. A transceiver may be referred to as a transceiving circuit, a transceiving unit, a transceiving device, a transmitting circuit, a transmitting unit, a transmitting device, or the like.

The communication device 50 may be a complete communication device, a component or assembly for implementing the function of the communication device, or a communication chip. When the communication device 50 is a communication chip, the transceiver 503 may be an interface circuit of the chip, which is used to read in and output a baseband signal.

An embodiment of the present application provides a neighbor detection method, as shown in fig. 6, the method includes the following steps:

601. the access point sends a channel detection indication to the terminal equipment, wherein the channel detection indication comprises a channel identifier, and a channel corresponding to the channel identifier is a channel which fails to be detected by the neighbor of the access point.

In a specific implementation, the access point may be an AP described in the foregoing embodiments of the present application. The access point may switch to other channels than the working channel for neighbor detection. The probing mode may be active scanning or passive scanning, for example, sending Probe Request frame or listening to Beacon frame. If the access point does not acquire the basic service set information sent by other APs on a certain channel in an active scanning or passive scanning manner, it may be considered that the neighbor detection performed by the access point on the channel is failed, that is, the channel is a channel for which the neighbor detection fails.

The basic service set information includes, but is not limited to, basic Service Set Identification (BSSID), load condition, transmission power, and the like.

The reason for the failure of neighbor detection may be that no other access point sends basic service set information on a channel, or that the network environment between the access point and the other access point is poor, and the access point cannot find an air interface neighbor through neighbor detection. For example, there is a barrier between the access point and the access point 1, which results in that the access point cannot listen to the Beacon frame sent by the access point 1, or the access point 1 cannot receive the Probe Request frame sent by the access point, and the access point cannot discover the access point 1.

In the embodiment of the present application, the identifier of the channel in which the neighbor detection fails may be sent to the terminal device, and the terminal device may be instructed to perform detection on the corresponding channel, so as to discover an empty neighbor that is not detected due to the influence of a network environment in the neighbor detection process, which is helpful for establishing a complete neighbor relationship of the access point.

In a possible implementation manner, the access point may send a channel identifier to the terminal device through a channel detection indication, indicating a channel on which neighbor detection fails. Illustratively, an access point sends a channel detection indication to a terminal device, where the channel detection indication includes a channel identifier, and a channel corresponding to the channel identifier is a channel in which the neighbor detection of the access point fails.

The channel identifier is used to uniquely identify a channel, and may be a channel number or a channel ID.

In one possible implementation, the access point may send a Beacon Request (Beacon Request) to the terminal device, where the Beacon Request carries a channel report element (channel report element) field, and the channel report element field includes a channel number (channel number). The channel indicated by the channel number includes a channel in which neighbor detection fails, or the channel indicated by the channel number is a channel in which neighbor detection fails.

602. And the terminal equipment performs channel detection according to the channel detection indication to obtain a detection result of the channel.

In a specific implementation, after receiving the channel detection indication, the terminal device may obtain a channel identifier, and determine a channel to be detected according to the channel identifier. The channel to be detected comprises a channel in which the neighbor detection of the access point fails, or the channel to be detected is a channel in which the neighbor detection of the access point fails.

The terminal equipment can also be switched to a channel to be detected for scanning to acquire basic service set information sent by other access points.

For example, the terminal apparatus transmits a Probe Request (Probe Request) on a channel indicated by the channel identifier. If an access point receives a probe request sent by a terminal device through the channel, basic service set information is sent through the channel, wherein the service information includes but is not limited to basic service set identification and signal strength value. The signal strength value is used to characterize the channel quality, and may be a Received Signal Strength Indication (RSSI). For example RSSI measured by the terminal device. The basic service set identification is used to characterize the basic service set and may be a BSSID.

The terminal device may obtain a detection result on a channel indicated by the channel identifier, where the detection result may include a correspondence between the signal strength value and the basic service set identifier. It is understood that after the terminal device sends the probe request, multiple sets of basic service set information may be received, and the Basic Service Set Identification (BSSID) and the signal strength value included in one set of basic service set information are corresponding to each other. BSSIDs respectively represent signal strength values between the terminal device and a certain BSS, and the BSSIDs are IDs of the BSS.

603. And the terminal equipment sends the detection result to the access point.

In a specific implementation, the terminal device may send a detection result to the access point, so as to construct a complete neighbor relation for the access point according to the detection result.

In one possible implementation, the access point may determine the neighbor AP according to the detection result.

For example, the access point may determine the neighbor APs from the BSSID in the probe result. Illustratively, the access point to which the BSSID corresponds is determined to be a neighbor AP.

Alternatively, the access point may determine the neighbor AP according to the BSSID and the signal strength value in the probe result. For example, screening out a signal strength value greater than a first threshold value, determining a BSSID corresponding to the signal strength value greater than the first threshold value, and determining an access point corresponding to the BSSID as a neighbor AP.

Illustratively, the detection result includes BSSID 1, RSSI 1, BSSID 2, and RSSI 2, where BSSID 1 corresponds to RSSI 1, and is the basic service set information transmitted in channel 1 for AP 1. BSSID 2 corresponds to RSSI 2 and is basic service set information transmitted by AP2 on channel 2. If RSSI 1 is greater than a threshold value (e.g., the first threshold value described in this embodiment), and RSSI 2 is less than the first threshold value, the access point may determine that AP1 is a neighbor AP of the access point.

In a possible implementation manner, the access point may send a detection result of the terminal device to the WLAN controller, and the WLAN controller determines the neighbor APs of the access point according to the detection result. For example, the following steps 604-605 may be performed to determine neighbor APs for the access point.

604. The access point sends the probing result of the channel to a WLAN controller.

The access point may send the detection results of these channels to the WLAN controller, so that the WLAN controller determines the neighbor APs of the access point according to the detection results.

605. And the WLAN controller determines the neighbors of the access point according to the detection result.

In specific implementation, the WLAN controller may determine whether an Access Point (AP) corresponding to the BSSID in the detection result and the access point belong to the same network (e.g., WLAN), and determine whether the access point corresponding to the BSSID is an air interface neighbor of the access point according to the determination result.

For example, if the access point corresponding to the BSSID in the detection result and the access point belong to the same network, it is determined that the access point corresponding to the BSSID in the detection result is an air interface neighbor of the access point, and the access point is recorded in a neighbor relation of the access point, so that a complete and correct neighbor relation can be constructed for the access point. And if the access point corresponding to the BSSID in the detection result and the access point do not belong to the same network, recording the access point corresponding to the BSSID in the detection result as an interference source record, and prompting a user that the access point is possibly an illegal hotspot.

In a possible implementation manner, the WLAN controller may further perform radio frequency management according to a neighbor relation of the access point. For example, different channels are allocated to the access point and the air interface neighbor, so that the problem that the STA experience is deteriorated due to the same frequency of the access point and the air interface neighbor is avoided.

In a possible implementation manner, the WLAN controller may further perform roaming recommendation or load balancing according to the signal strength value in the detection result. For example, the signal strength value in the detection result is greater than the first threshold, which indicates that the Path loss (Path loss) between the access point (hereinafter referred to as the first access point) corresponding to the BSSID corresponding to the signal strength value and the terminal device is low, and the first access point may be recommended to the terminal device as a better roaming target. Or, the first access point may also serve as a target for load balancing of the access points, and when the load of the access point is large, a part of the load may be shunted to the first access point, so as to reduce the load of the access point.

In the method provided by the embodiment of the present application, the WLAN controller may determine the neighbors of the access point in the following possible manners. The specific description is as follows:

the first method is to determine an access point corresponding to a Basic Service Set Identifier (BSSID) as an air interface neighbor of the access point.

For example, the WLAN controller determines that the basic service set in the probe result identifies the corresponding access point as the neighbor. In the embodiment of the present application, the access point corresponding to the basic service set identifier is an access point where the BSS indicated by the basic service set identifier is located.

Illustratively, the probe result includes BSSID 1, RSSI 1, BSSID 2, and RSSI 2. BSSID 1 corresponds to RSSI 1, and BSSID 1 and RSSI 1 are basic service set information transmitted by AP1 in channel 1. BSSID 2 corresponds to RSSI 2, and BSSID 2 and RSSI 2 are basic service set information transmitted by AP2 on channel 2. It is understood that the AP where the BSS indicated by BSSID 1 is located is AP1, and the AP where the BSS indicated by BSSID 2 is located is AP 2.

The WLAN controller may determine that AP1 and AP2 are air interface neighbors of the access point.

And secondly, taking an access point with low path loss with terminal equipment in the access points corresponding to Basic Service Set Identifiers (BSSIDs) as an air interface neighbor of the access point.

For example, the WLAN controller determines a first basic service set identifier corresponding to a signal strength value greater than a first threshold value in the probing result. It may also be determined that the access point corresponding to the first basic service set identification is a neighbor of the access point.

Illustratively, the probe result includes BSSID 1, RSSI 1, BSSID 2, and RSSI 2, where BSSID 1 corresponds to RSSI 1, and is the basic service set information transmitted by AP1 in channel 1. BSSID 2 corresponds to RSSI 2, and is basic service set information transmitted by AP2 in channel 2. If the RSSI 1 is greater than the first threshold value and the RSSI 2 is less than the first threshold value, the WLAN controller may determine that the AP1 is an air interface neighbor of the access point.

And thirdly, determining the air interface neighbor of the access point according to the detection result of the terminal equipment and the signal strength value between the terminal equipment and the access point signal.

In a possible implementation manner, when the signal strength value between the terminal device and the access point is higher, the air interface neighbor of the access point is determined according to the detection result of the terminal device.

For example, the WLAN controller may also obtain a signal strength value between the terminal device and the access point from the access point.

And the WLAN controller determines a first basic service set identifier corresponding to a signal strength value which is greater than a first threshold value in the detection result, and if the signal strength value between the terminal equipment and the access point is greater than a second threshold value, determines that the access point corresponding to the first basic service set identifier is the neighbor node.

Illustratively, the probe result includes BSSID 1, RSSI 1, BSSID 2, and RSSI 2, where BSSID 1 corresponds to RSSI 1, and is the basic service set information transmitted by AP1 in channel 1. BSSID 2 corresponds to RSSI 2 and is basic service set information transmitted by AP2 on channel 2. The RSSI between the terminal device and the access point is greater than the second threshold, the RSSI 1 is greater than the first threshold, and the RSSI 2 is less than the first threshold, and the WLAN controller may determine that the AP1 is an air interface neighbor of the access point.

In another possible implementation, the WLAN controller calculates a weighted average of the signal strength value between the terminal device and the access point and each of the signal strength values in the probing results. And determining a second basic service set identifier corresponding to the weighted average value greater than a third threshold, and further determining that the access point corresponding to the second basic service set identifier is the neighbor point.

The weighted average may be an average value or a quantized value determined from the weight coefficient.

Illustratively, the AP 3 sends the channel identifier of the neighbor detection failure to the STA, and the detection result reported by the STA to the AP 3 includes BSSID 1, RSSI 1, BSSID 2, and RSSI 2, where the BSSID 1 corresponds to the RSSI 1 and is the basic service set information sent by the AP1 in the channel 1. BSSID 2 corresponds to RSSI 2 and is basic service set information transmitted by AP2 on channel 2.

In addition, the STA may also report a received channel strength value RSSI3 with the AP 3 to the AP 3.

The AP 3 may report the detection result and the RSSI3 to the WLAN controller, and the WLAN controller makes a decision. For example, a weighted average of RSSI3 and RSSI 1 may be calculated, e.g., a weighted average of RSSI3 and RSSI 1 a = x (RSSI 3) + y (RSSI 1). Wherein x and y are weight coefficients. For example, x =0.5, y =0.5.

A weighted average of RSSI3 and RSSI 2 is calculated, e.g., weighted average B = x (RSSI 3) + y (RSSI 2) of RSSI3 and RSSI 2.

And if A is larger than a third threshold and B is smaller than the third threshold, determining that AP1 corresponding to BSSID 1 corresponding to RSSI 1 is an air interface neighbor of the access point.

In the embodiment of the present application, the first threshold, the second threshold, and the third threshold are all threshold values of a signal strength value. The first threshold, the second threshold, and the third threshold may be the same or different, and this is not limited in this embodiment of the application.

Optionally, the WLAN control device may further send information of an air interface neighbor to the access point, so that the access point recommends the air interface neighbor as a roaming object to the terminal device.

Optionally, if the channel in which the neighbor detection fails is a channel supported by the terminal device, the access point available channel detection instruction is sent to the terminal device, and the terminal device is instructed to detect the channel in which the neighbor detection fails. That is to say, the channel corresponding to the channel identifier is a channel supported by the terminal device.

Optionally, for a channel supporting dual-frequency, the channel identifier may include a first channel identifier and a second channel identifier, where a channel corresponding to the first channel identifier and a channel corresponding to the second channel identifier belong to different frequency bands.

For example, the channels support 2.4GHz and 5GHz, the first channel identifier may indicate a channel with a frequency band of 2.4GHz, and the second channel identifier may indicate a channel with a frequency band of 5 GHz.

Or, the channel supports 2.4GHz, 5GHz and 6GHz, and the channel identifier may include a first channel identifier, a second channel identifier and a third channel identifier. The first channel identifier may indicate a channel with a frequency band of 2.4GHz, the second channel identifier may indicate a channel with a frequency band of 5GHz, and the third channel identifier indicates a channel with a frequency band of 6 GHz.

Optionally, there may be multiple channels in which neighbor detection fails, and the access point may send multiple channel identifiers to the terminal device, and instruct the terminal device to perform detection on the multiple channels in which neighbor detection fails. Illustratively, the access point sends a channel report element to the terminal device, where the channel report element includes a plurality of channel numbers, and a plurality of channels indicated by the plurality of channel numbers form a channel set.

The channel set may include a plurality of channels on which neighbor detection fails and may also include channels on which known neighbor detection succeeds. In addition, the plurality of channel numbers in the channel report element may be arranged in a descending order, or randomly arranged, or arranged in an order configured by the WLAN controller.

The neighbor detection method according to the embodiment of the present application is described below with reference to specific examples, where an operating channel of AP1 is channel 1, and AP1 can perform neighbor detection on channel 6 and channel 11, as shown in fig. 7, the method includes the following steps:

the basic process of the technology is as follows:

701. the AP1 performs neighbor detection on the channel 6, and acquires BSSID 2 and RSSI 2.

In a specific implementation, after the AP1 finishes data transmission on the channel 1, it may switch to the channel 6 to perform neighbor detection in an active scanning or passive scanning manner. Assuming that the network condition of the channel 6 is ideal, the AP1 acquires the BSSID 2 transmitted by another AP on the channel 6. Accordingly, the reception channel strength value RSSI 2 may also be measured.

702. The AP1 reports BSSID 2 and RSSI 2 to the AC.

The AC may be a WLAN controller according to the embodiment of the present application.

703. The AC matches BSSID 2 as one BSSID of AP2, adds AP2 into a neighbor list of AP1, and records a corresponding receiving channel strength value as RSSI 2.

704. The AP1 fails neighbor detection on channel 11.

Specifically, when the AP1 switches to the channel 11 for active scanning or passive scanning, due to the influence of the network environment, the AP1 cannot acquire the BSSID x sent by the AP x in the channel 11. If not, the AC may configure the same channel for AP1 and AP x, and the STA experience may be seriously affected by the co-frequency of AP1 and AP x.

705. The AP1 sends a channel sounding indication to the STA, which includes the channel identification of the channel 11.

In one possible implementation, the channel identification is a channel number.

Specifically, AP1 may transmit a Beacon Request including a Channel Report element field including a Channel Number, which =11.

706. The STA performs sounding on the channel 11 according to the channel sounding indication transmitted by the AP 1.

In a specific implementation, after receiving the Beacon Request, the STA may determine a Channel to be detected, for example, the Channel 11 in the embodiment of the present application, according to the Channel Number in the Channel Report element field.

In addition, the STA may frame a Beacon (Beacon) frame on the channel 11 to obtain the BSSID x sent by the AP x; alternatively, a Probe Request (Probe Request) frame is transmitted on the channel 11, and BSSID x transmitted by AP x is received.

Accordingly, the measurement obtains a reception channel strength value RSSI x.

If the channel sounding indication includes a plurality of channel identifiers, the STA performs sounding on the plurality of channels indicated by the plurality of channel identifiers, respectively.

707. The STA transmits the sounding result of the channel 11 and the current signal strength value to the AP 1.

If the STA performs sounding on a plurality of channels, respectively, according to the channel sounding indication in step 706, the sounding result for each channel is transmitted to the AP 1. The probe result includes, but is not limited to, BSSID and RSSI. For example, the STA reports BSSID x and RSSI x to AP 1.

The current signal strength value may be a received signal strength value RSSI 1 between the STA and the AP 1.

708. The AP1 receives the sounding result of the channel 11 and the current signal strength value from the STA, and transmits the sounding result of the channel 11 and the current signal strength value to the AC.

For example, AP1 reports BSSID x, RSSI x, and RSSI 1 to the AC. Optionally, the corresponding relationship between the detection result and the channel identifier may also be reported. For example, AP1 reports the correspondence between BSSID x, RSSI x, and Channel Number "11" to the AC.

709. And the AC determines the air interface neighbor of the AP1 according to the detection result reported by the AP1 and the current signal strength value.

In a specific implementation, the AC determines the RSSI x and the RSSI 1, and if both the RSSI x and the RSSI 1 are higher than a threshold value (e.g., a first threshold value described in this embodiment), the AP x is considered as an empty neighbor of the AP 1.

The AC may add AP x to the neighbor list of AP1, and may also allocate different channels to AP x and AP1, thereby avoiding the co-channel between AP x and AP 1. In addition, the AP x may also be used as a load balancing target of the AP1, and if the load of the AP1 is too large, a part of the load may be shunted to the AP x, so as to reduce the load of the AP 1.

Fig. 8 shows a schematic diagram of a possible structure of the communication device according to the above embodiment, in the case of dividing each functional module according to each function. The communication device shown in fig. 8 may be the access point described in the embodiment of the present application, a component in the access point for implementing the foregoing method, or a chip applied to the access point. The Chip may be a System-On-a-Chip (SOC) or a baseband Chip with a communication function. As shown in fig. 8, the communication apparatus includes a processing unit 801 and a communication unit 802. The processing unit may be one or more processors and the communication unit may be a transceiver or a communication interface.

Processing unit 801 may, for example, be used to support an access point performing internal processing such as message generation or message parsing, e.g., to support an access point generating a channel sounding indication, and/or other processes for the techniques described herein.

A communication unit 802 to support communication between the access point and other communication apparatuses, e.g., to support interaction between the access point and a second device, to support the access point to perform steps 601, 603, 604, 705, 707, etc., and/or other processes for the techniques described herein.

All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.

As shown in fig. 9, the communication apparatus may further include a storage unit 803, the storage unit 803 being used to store program codes and/or data of the communication apparatus.

The processing unit 801 may comprise at least one processor, the communication unit 802 may be a transceiver or a communication interface, and the storage unit 803 may comprise a memory.

In the above embodiments of the communication device, each unit may also be referred to as a module or a component or a circuit, respectively.

Fig. 10 shows a schematic diagram of a possible structure of the communication device according to the above-described embodiment, in a case where each functional module is divided according to each function. The communication device shown in fig. 10 may be the WLAN controller according to the embodiment of the present application, or may be a component of the WLAN controller that implements the foregoing method, or may be a chip applied to the WLAN controller. The Chip may be a System-On-a-Chip (SOC) or a baseband Chip with a communication function. As shown in fig. 10, the communication apparatus includes a processing unit 901 and a communication unit 902. The processing unit may be one or more processors and the communication unit may be a transceiver or a communication interface.

The processing unit 901 may be used, for example, to support the WLAN controller to perform steps 605, 703, 709, etc., and/or other processes for the techniques described herein.

A communication unit 902 for supporting communication between the WLAN controller and other communication devices, e.g., supporting interaction between the WLAN controller and the WLAN controller, supporting the WLAN controller to perform step 604, step 702, step 704, step 708, etc., and/or other processes for the techniques described herein.

All relevant contents of the steps related to the method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.

As shown in fig. 11, the communication device may further comprise a storage unit 903, the storage unit 903 being adapted to store program codes and/or data of the communication device.

The processing unit 901 may comprise at least one processor, the communication unit 902 may be a transceiver or a communication interface, and the storage unit 903 may comprise a memory.

The embodiment of the application provides a computer-readable storage medium, wherein instructions are stored in the computer-readable storage medium; the instructions are for performing a method as shown in fig. 6 or fig. 7.

Embodiments of the present application provide a computer program product comprising instructions which, when run on a communication device, cause the communication device to perform a method as shown in fig. 6 or fig. 7.

It is clear to those skilled in the art from the foregoing description of the embodiments that, for convenience and simplicity of description, the above-mentioned division of the functional modules is merely used as an example, and in practical applications, the above-mentioned function distribution may be completed by different functional modules according to needs, that is, the internal structure of the communication device may be divided into different functional modules to complete all or part of the above-mentioned functions.

The processor in the embodiment of the present application may include, but is not limited to, at least one of the following: various computing devices running software, such as a Central Processing Unit (CPU), a microprocessor, a Digital Signal Processor (DSP), a microcontroller unit (MCU), or an artificial intelligence processor, may each include one or more cores for executing software instructions to perform operations or processing. The processor may be a single semiconductor chip or integrated with other circuits to form a semiconductor chip, for example, an SoC (system on chip) with other circuits (such as a codec circuit, a hardware acceleration circuit, or various buses and interface circuits), or may be integrated in the ASIC as a built-in processor of the ASIC, which may be packaged separately or together with other circuits. The processor may further include necessary hardware accelerators such as Field Programmable Gate Arrays (FPGAs), PLDs (programmable logic devices), or logic circuits implementing dedicated logic operations, in addition to cores for executing software instructions to perform operations or processes.

The memory in the embodiment of the present application may include at least one of the following types: read-only memory (ROM) or other types of static memory devices that may store static information and instructions, random Access Memory (RAM) or other types of dynamic memory devices that may store information and instructions, and may also be electrically erasable programmable read-only memory (EEPROM). In some scenarios, the memory may also be, but is not limited to, a compact disk-read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact disk, laser disk, optical disk, digital versatile disk, blu-ray disk, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.

In the present application, "at least one" means one or more. "plurality" means two or more. "and/or" describes the association relationship of the associated object, indicating that there may be three relationships, for example, a and/or B, which may indicate: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple. In addition, in order to facilitate clear description of technical solutions of the embodiments of the present application, in the embodiments of the present application, terms such as "first" and "second" are used to distinguish the same items or similar items having substantially the same functions and actions. Those skilled in the art will appreciate that the terms "first," "second," etc. do not denote any order or quantity, nor do the terms "first," "second," etc. denote any order or importance.

In the several embodiments provided in the present application, it should be understood that the disclosed database access apparatus and method may be implemented in other ways. For example, the above-described database access device embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, multiple units or components may be combined or integrated into another device, or some features may be omitted, or not executed. In addition, the shown or discussed coupling or direct coupling or communication connection between each other may be an indirect coupling or communication connection through some interfaces, database access devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may be one physical unit or a plurality of physical units, that is, may be located in one place, or may be distributed in a plurality of different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially or partially contributed to by the prior art, or all or part of the technical solutions may be embodied in the form of a software product, where the software product is stored in a storage medium and includes several instructions to enable a device (which may be a single chip microcomputer, a chip, or the like) or a processor to execute all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A neighbor detection method, comprising:

the method comprises the steps that an access point sends a channel detection instruction to a terminal device so that the terminal device can acquire a channel identifier after receiving the channel detection instruction and carry out access point neighbor detection on a channel corresponding to the channel identifier, wherein the channel detection instruction comprises the channel identifier, and the channel corresponding to the channel identifier is a channel which fails in the access point neighbor detection;

and the access point receives a detection result of the terminal equipment on the channel.

2. The method of claim 1, wherein the probing results comprise: a correspondence of signal strength values and basic service set identities.

3. The method according to claim 1 or 2, characterized in that the method further comprises:

the access point sends the detection result to a Wireless Local Area Network (WLAN) control device;

the access point receives from the WLAN control device an identification of a neighbor of the access point based on the probing result.

4. The method according to claim 1 or 2, wherein the channel corresponding to the channel identifier is a channel supported by the terminal device.

5. The method according to claim 1 or 2, wherein the channel identifier comprises a first channel identifier and a second channel identifier, and a channel corresponding to the first channel identifier and a channel corresponding to the second channel identifier belong to different frequency bands.

6. A neighbor detection method, comprising:

a Wireless Local Area Network (WLAN) controller receives a detection result of a channel from a terminal device through an access point, wherein the detection of the channel by the terminal device is the access point neighbor detection which is performed on the channel corresponding to a channel identifier by the terminal device after the terminal device receives a channel detection instruction from the access point, the channel detection instruction comprises the channel identifier, and the channel corresponding to the channel identifier is a channel in which the access point fails to detect neighbor nodes;

the WLAN controller determines the neighbors of the access point according to the detection result;

the WLAN controller sends the identification of the neighbor to the access point.

7. The method of claim 6, wherein the probing result comprises a correspondence between a signal strength value and a basic service set identifier.

8. The method of claim 7, further comprising:

the WLAN controller obtains a signal strength value between the terminal device and the access point from the access point.

9. The method of claim 7 or 8, wherein the WLAN controller determines the neighbors of the access point according to the probing results, comprising:

and the WLAN controller determines that the access point corresponding to the basic service set identification is the neighbor.

10. The method of claim 7 or 8, wherein the WLAN controller determines the neighbors of the access point according to the probing results, comprising:

the WLAN controller determines a first basic service set identifier corresponding to a signal strength value which is greater than a first threshold value in the detection result;

and the WLAN controller determines that the access point corresponding to the first basic service set identification is the neighbor.

11. The method of claim 8, wherein the WLAN controller determines the neighbors of the access point according to the probing results, comprising:

and if the signal strength value greater than a first threshold value and the corresponding first basic service set identifier exist in the detection result, and the signal strength value between the terminal equipment and the access point is greater than a second threshold value, determining that the access point corresponding to the first basic service set identifier is the neighbor.

12. The method of claim 8, wherein the WLAN controller determines the neighbors of the access point according to the probing results, comprising:

determining a weighted average value of the signal strength value between the terminal device and the access point and each signal strength value in the detection result, and determining a second service set identifier corresponding to the weighted average value larger than a third threshold;

and determining that the access point corresponding to the second service set identifier is the neighbor.

13. A communications apparatus, comprising:

a processing unit, configured to generate a channel sounding indication, where the channel sounding indication includes a channel identifier;

a communication unit, configured to send the channel detection indication to a terminal device, so that the terminal device obtains the channel identifier after receiving the channel detection indication and determines a channel to be detected according to the channel identifier, where the channel to be detected corresponding to the channel identifier is a channel for which detection by a neighbor of the access point fails;

the communication unit is further configured to receive a detection result of the channel from the terminal device.

14. The communications apparatus of claim 13, wherein the probing results comprise: a correspondence of the signal strength value and the basic service set identity.

15. The apparatus according to claim 13 or 14, wherein the communication unit is further configured to send the probing result to a wireless local area network WLAN control device;

receiving, from the WLAN control device, an identification of a neighbor of the access point based on the probing result.

16. The apparatus according to claim 13 or 14, wherein the channel corresponding to the channel identifier is a channel supported by the terminal device.

17. The communication apparatus according to claim 13 or 14, wherein the channel identifier comprises a first channel identifier and a second channel identifier, and a channel corresponding to the first channel identifier and a channel corresponding to the second channel identifier belong to different frequency bands.

18. A communications apparatus, comprising:

a communication unit, configured to receive, through an access point, a detection result of a channel to be detected from a terminal device, where the channel to be detected is obtained by the terminal device after receiving a channel detection instruction from the access point and is determined according to the channel identifier, the channel detection instruction includes the channel identifier, and the channel to be detected corresponding to the channel identifier is a channel in which the access point fails to detect a neighbor node;

the processing unit is used for determining the neighbors of the access point according to the detection result;

the communication unit is further configured to send the identifier of the neighbor to the access point.

19. The communications apparatus of claim 18, wherein the probing results comprise a correspondence between signal strength values and basic service set identifications.

20. The apparatus according to claim 19, wherein the communication unit is further configured to obtain a signal strength value between the terminal device and the access point from the access point.

21. The communications apparatus as claimed in claim 19 or 20, wherein the processing unit is specifically configured to determine that the access point corresponding to the basic service set identifier is the neighbor.

22. The communications device according to claim 19 or 20, wherein the processing unit is specifically configured to determine a first basic service set identifier corresponding to a signal strength value that is greater than a first threshold value in the detection result;

and determining that the access point corresponding to the first basic service set identification is the neighbor.

23. The communications apparatus as claimed in claim 20, wherein the processing unit is specifically configured to determine that the access point corresponding to the first bss identity is the neighbor if the detection result includes a signal strength value greater than a first threshold and a corresponding first bss identity, and the signal strength value between the terminal device and the access point is greater than a second threshold.

24. The communications apparatus as claimed in claim 20, wherein the processing unit is specifically configured to determine a weighted average of the signal strength value between the terminal device and the access point and each signal strength value in the detection result, and determine a second service set identifier corresponding to a weighted average greater than a third threshold;

and determining the access point corresponding to the second service set identification as the neighbor.

25. A communications apparatus comprising a processor coupled with a memory;

a memory for storing a computer program;

a processor for executing a computer program stored in the memory to cause the apparatus to perform the method of any of claims 1 to 12.

26. A computer-readable storage medium comprising a program or instructions which, when executed by a processor, causes the method of any one of claims 1 to 12 to be performed.

27. A chip comprising a processor and interface circuitry, the interface circuitry being coupled to the processor, the processor being configured to execute a computer program or instructions such that the method of any of claims 1 to 12 is performed.