CN113747541B

CN113747541B - Terminal roaming guiding method, device, equipment and computer readable storage medium

Info

Publication number: CN113747541B
Application number: CN202010469753.2A
Authority: CN
Inventors: 孙福清; 马志; 张�浩; 白小飞; 包德伟
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2023-03-24
Anticipated expiration: 2040-05-28
Also published as: CN113747541A

Abstract

The application discloses a terminal roaming guiding method, a device, equipment and a computer readable storage medium, belonging to the technical field of network communication. The method instructs the second AP to execute the operation of promoting the terminal to roam to the second AP by sending the roaming promoting instruction to the second AP, and/or instructs the third AP to execute the operation of inhibiting the terminal from roaming to the third AP by sending the roaming inhibiting instruction to the third AP, so that when the terminal receives the roaming guide, the second AP can be preferentially taken as the target AP of the terminal roaming, the probability of the terminal roaming to the second AP is improved, and the accuracy of guiding the terminal roaming is improved.

Description

Terminal roaming guiding method, device, equipment and computer readable storage medium

Technical Field

The present application relates to the field of network communication technologies, and in particular, to a method, an apparatus, a device, and a computer-readable storage medium for guiding terminal roaming.

Background

When a terminal moves in a Wireless Local Area Network (WLAN), if the terminal is far away from an Access Point (AP) to which the terminal accesses, the signal strength of a wireless signal received by the terminal becomes weak, and in order to enable the terminal to always receive a strong wireless signal, the AP may guide the terminal to roam to a target AP located in the moving direction of the terminal, so that the target AP provides the terminal with a strong wireless signal.

Currently, the guiding procedure of terminal roaming may be: when the terminal moves, the AP accessed by the terminal takes the neighbor AP positioned in the moving direction of the terminal as a target AP, and guides the terminal to roam from the AP to the target AP, the terminal can detect the network information of a plurality of neighbor APs of the AP, if the network condition indicated by the network information of the target AP in the plurality of neighbor APs is the best, the terminal disconnects the AP from the AP and accesses the target AP, namely, the AP roams to the target AP.

In the above-mentioned guiding process of terminal roaming, when the terminal detects the network information of multiple neighbor APs, there may be some external interference, which causes the network information of the target AP detected by the terminal to have a deviation, and for the terminal, the network condition of the target AP may not be optimal relative to the network conditions of other neighbor APs, and the terminal may roam from the currently accessed AP to other neighbor APs instead of the target AP, which causes the terminal to be unable to accurately roam to the target AP, that is, the accuracy of guiding the terminal to roam is low.

Disclosure of Invention

The embodiment of the application provides a method, a device and equipment for guiding terminal roaming and a computer readable storage medium, which can improve the accuracy of guiding the terminal roaming. The technical scheme is as follows:

in a first aspect, a method for guiding terminal roaming is provided, where the method includes:

determining a second AP and at least one third AP from a plurality of neighbor APs of a first access point AP accessed by a terminal;

sending a roaming facilitation instruction to the second AP, wherein the roaming facilitation instruction is used for instructing the second AP to execute the operation of facilitating the terminal to roam to the second AP;

and/or for any third AP in the at least one third AP, sending a roaming suppression instruction to the third AP, where the roaming suppression instruction is used to instruct the third AP to perform an operation of suppressing the terminal from roaming to the third AP;

and guiding the terminal to roam from the first AP to the second AP.

The method instructs the second AP to execute the operation of promoting the terminal to roam to the second AP by sending the roaming promoting instruction to the second AP, and/or instructs the third AP to execute the operation of inhibiting the terminal from roaming to the third AP by sending the roaming inhibiting instruction to the third AP, so that when the terminal receives the roaming guide, the second AP can be preferentially taken as the target AP of the terminal roaming, the probability of the terminal roaming to the second AP is improved, and the accuracy of guiding the terminal roaming is improved.

In one possible implementation, the facilitating roaming of the terminal to the second AP includes facilitating at least one of operations 1-6;

promotion operation 1: if a probe request sent by the terminal is received, sending a probe response carrying the network information of the second AP to the terminal, wherein the network information of the second AP is used for indicating the network condition of the second AP;

the promotion operation 2: if the detection request sent by the terminal is not received in the target time period in the roaming guide time period, the network information of the second AP is actively sent to the terminal;

facilitating operation 3: sending the network information of the second AP to the terminal at a first power which is larger than the working power of the second AP;

the facilitating operation 4: sending first target network information to the terminal, wherein the network condition indicated by the first target network information is superior to the actual network condition of the second AP;

the promotion operation 5: within the roaming guide time period, the network information of the second AP is sent to the terminal for multiple times, and the sending interval of two adjacent times is smaller than the staying time of the terminal in a single channel;

the facilitating operation 6: and the second AP is used for indicating to actively send the network information of the second AP to the terminal.

Based on the possible implementation manners, the second AP can ensure that the network information of the second AP can be obtained when the terminal obtains the network information of the second AP in an active detection manner by performing the promotion operations 1 and 2; the second AP performs the promotion operation 3, which not only can prevent the network information from being sent to the terminal, but also facilitates the terminal to detect that the third AP has stronger signal strength; the second AP performs the facilitating operation 4, so that the terminal may consider the network condition of the second AP to be better based on the first target network information, so as to increase the probability that the second AP becomes a target AP for the terminal to roam; the second AP executes the suppression operation 5, so that the terminal can acquire the network information of the second AP within the retention time of the terminal in the channel of the second AP; the second AP can ensure that the network information of the second AP can be acquired when the terminal acquires the network information of the second AP in a passive listening manner by executing the suppression operation 6, so that the second AP can promote the terminal to roam to the second AP by executing at least one of the promotion operations 1 to 6.

In one possible implementation, the first target network information includes a first channel utilization and/or a first number of access terminals, the first channel utilization is lower than an actual channel utilization of the second AP, and the first number of access terminals is lower than an actual number of access terminals of the second AP.

Based on the possible implementation manners, since the channel utilization rate in the first target network information sent by the second AP to the terminal is lower than the actual channel utilization rate of the second AP, and/or the number of access terminals is lower than the actual number of access terminals of the second AP, the terminal considers that the current load of the second AP is smaller, that is, the terminal is informed that the second AP has a better network condition, and in order to obtain more network resources, the terminal may preferentially use the second AP as the target AP for terminal roaming.

In one possible implementation, before sending the roaming facilitation instruction to the second AP, the method further includes:

and determining to promote the terminal to roam to the second AP based on the acquisition behavior characteristics of the terminal, wherein the acquisition behavior characteristics are used for indicating the behavior characteristics of the terminal when the terminal acquires the network information of the AP.

acquiring an acquisition behavior characteristic of the terminal, where the acquisition behavior characteristic includes an active identifier and/or a passive identifier, the active identifier is used to instruct the terminal to acquire network information of an AP corresponding to at least one first channel by sending a probe request to the at least one first channel, the passive identifier is used to instruct the terminal to listen to the network information sent to the terminal by the AP corresponding to the at least one second channel on the at least one second channel, and a channel of the second AP is any one of the at least one first channel and/or the at least one second channel;

determining operation to facilitate roaming of the terminal to the second AP as facilitating at least one of modes 1-5 of operation based on the active identity;

and/or determining operation to facilitate roaming of the terminal to the second AP as facilitating at least one of modes 3-6 of operation based on the passive identity.

In a possible implementation manner, the obtained behavior feature further includes the stay duration and the roaming duration of the terminal, where the roaming duration is the duration of the roaming guiding time period.

In one possible implementation, the roaming facilitation instruction includes a facilitation operation identifier indicating facilitation of roaming of the terminal to the second AP.

In one possible implementation, the operation of suppressing the terminal from roaming to the third AP includes at least one of the following suppression operations 1-2 or the following suppression operation 3;

suppression operation 1: sending network information of the third AP to the terminal at a second power smaller than the working power of the third AP, wherein the network information of the third AP is used for indicating the network condition of the third AP;

suppression operation 2: sending second target network information to the terminal, wherein the network condition indicated by the second target network information is inferior to the actual network condition of the third AP;

suppression operation 3: and triggering not to send the network information of the third AP to the terminal in the roaming guide time period.

In a possible implementation manner, the second target network information includes a second channel utilization rate and/or a second number of access terminals, where the second channel utilization rate is higher than an actual channel utilization rate of the third AP, and the second number of access terminals is higher than an actual number of access terminals of the third AP.

Based on the possible implementation manner, when the third AP performs the suppression operation 1, since the second power is smaller than the working power of the third AP, the signal strength of the network information received by the terminal is weak, and thus the terminal may not preferentially use the third AP as the target AP for roaming of the terminal. When the third AP performs the suppression operation 2, since the network condition indicated by the second target network information sent to the terminal is inferior to the actual network condition of the third AP, the terminal may consider that the network condition of the third AP is poor, and may avoid the terminal using the third AP as the target AP for the terminal to roam, and when the third AP performs the suppression operation 3, the terminal may avoid acquiring the network information of the third AP, and may also avoid the terminal using the third AP as the target AP for the terminal to roam, and since the 3 suppression operations may all avoid the terminal using the third AP as the target AP for the terminal to roam, the terminal may also be prevented from roaming to the third AP.

In a possible implementation manner, the roaming suppression instruction includes a suppression operation identifier, and the suppression operation identifier is used for indicating an operation of suppressing the terminal from roaming to the third AP.

In a possible implementation manner, the execution subject of the method is a control node or the first AP.

In a second aspect, a terminal roaming guiding method is provided, and is applied to a second AP, and the method includes:

receiving a roaming facilitation instruction for instructing the second AP to perform an operation for facilitating roaming of the terminal to the second AP;

performing an operation of facilitating roaming of the terminal to the second AP based on the roaming facilitation instruction.

the promotion operation 5: in the roaming guide time period, the network information of the second AP is sent to the terminal for multiple times, and the sending interval of two adjacent times is less than the staying time of the terminal in a single channel;

the facilitating operation 6: and the second AP actively sends the network information of the second AP to the terminal.

In a third aspect, a method for guiding terminal roaming is provided, where the method is applied to a third AP, and the method includes:

receiving a roaming suppression instruction, wherein the roaming suppression instruction is used for instructing the third AP to execute the operation of suppressing the terminal from roaming to the third AP;

and executing the operation of restraining the terminal from roaming to the third AP based on the roaming restraining instruction.

In one possible implementation, the operation of suppressing roaming of the terminal to the third AP includes at least one of the following suppression operations 1-2 or the following suppression operation 3;

In a fourth aspect, a terminal roaming guiding apparatus is provided, configured to execute the terminal roaming guiding method. Specifically, the terminal roaming guiding apparatus includes a functional module configured to execute the terminal roaming guiding method provided in the first aspect or any optional manner of the first aspect.

In a fifth aspect, a terminal roaming guiding apparatus is provided, which is configured to execute the terminal roaming guiding method. Specifically, the terminal roaming guiding apparatus includes a functional module for executing the terminal roaming guiding method provided by the second aspect or any optional manner of the second aspect.

In a sixth aspect, a terminal roaming guiding apparatus is provided, which is configured to execute the terminal roaming guiding method. Specifically, the terminal roaming guiding apparatus includes a functional module configured to execute the terminal roaming guiding method provided in the third aspect or any optional manner of the third aspect.

In a seventh aspect, a control device is provided, where the control device includes a processor and a memory, where the memory stores at least one instruction, and the instruction is loaded by the processor and executed to implement the operations performed by the terminal roaming guidance method according to the first aspect or any one of the optional manners of the first aspect.

In an eighth aspect, a network device is provided, which includes a processor and a memory, where the memory stores at least one instruction, and the instruction is loaded and executed by the processor to implement the operations performed by the terminal roaming guidance method according to the first aspect or any one of the optional manners of the first aspect.

In a ninth aspect, a network device is provided, which includes a processor and a memory, where the memory stores at least one instruction, and the instruction is loaded and executed by the processor to implement the operations performed by the terminal roaming guidance method according to the second aspect or any optional manner of the second aspect.

In a tenth aspect, a network device is provided, which includes a processor and a memory, where the memory stores at least one instruction, and the instruction is loaded and executed by the processor to implement the operations performed by the terminal roaming guidance method according to the third aspect or any optional manner of the third aspect.

In an eleventh aspect, a computer-readable storage medium is provided, in which at least one instruction is stored, and the instruction is loaded and executed by a processor to implement the operations performed by the above-mentioned terminal roaming guiding method.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic diagram of a terminal roaming guidance system according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a control device provided in an embodiment of the present application;

fig. 3 is a schematic structural diagram of a network device according to an embodiment of the present application;

fig. 4 is a flowchart of a method for guiding roaming of a terminal according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a terminal roaming guidance apparatus according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a terminal roaming guidance apparatus according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a terminal roaming guidance apparatus according to an embodiment of the present application.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

A plurality of APs are involved in guiding the terminal to roam, and here, taking any terminal as an example in the embodiment of the present application, the following description is made for the terminal and the plurality of APs involved in guiding the terminal to roam.

The first AP of the terminal is an AP to which the terminal is currently accessed, and is configured to guide the terminal to roam from the first AP to a target AP, where the target AP may be an AP with the best network condition among multiple neighboring APs of the first AP and is located in a moving direction of the terminal.

And the second AP of the terminal is a target AP screened from a plurality of neighbor APs of the first AP for the control node or the first AP, can be also regarded as a target AP recommended to the terminal by the control node or the first AP, and is used for executing the operation of promoting the terminal to roam to the second AP so as to promote the terminal to regard the second AP as the target AP for roaming of the terminal and roam to the second AP.

The third AP of the terminal, which is a non-target AP screened from the multiple neighbor APs of the first AP by the control node or the first AP, may be regarded as a candidate target AP, and is not a target AP recommended to the terminal by the control node or the first AP, and is configured to perform an operation of inhibiting the terminal from roaming to the third AP, so as to prevent the terminal from regarding the third AP as a target AP for the terminal to roam, and prevent the terminal from roaming to the third AP.

The target AP that the terminal roams may be an AP that the terminal accesses after roaming is completed, and may be a target AP recommended to the terminal by the control node or the first AP, or may not be the target AP recommended to the terminal by the control node or the first AP.

The network information of one AP may include an identifier of the AP, an identifier of a channel of the AP, a frequency band of the AP, and load information of the AP to indicate a network condition of the AP, where the load information of the AP may include a channel utilization rate and/or a number of access terminals, where the channel utilization rate included in the load information may be an actual channel utilization rate of the AP, or may also be a channel utilization rate of the AP in case of being fake, and in case of being a second AP, the fake channel utilization rate is lower than the actual channel utilization rate of the second AP to optimize the network condition of the second AP, and in case of being a third AP, the fake channel utilization rate is higher than the actual channel utilization rate of the third AP to degrade the network condition of the second AP. The number of access terminals included in the load information may be the actual number of access terminals of the AP, or may also be the number of access terminals assumed by the AP, where, for example, the second AP is used, the number of assumed access terminals is lower than the actual number of access terminals of the second AP, so as to optimize the network condition of the second AP, and for example, the third AP is used, the number of assumed access terminals is higher than the actual number of access terminals of the third AP, so as to degrade the network condition of the third AP.

Fig. 1 is a schematic diagram of a terminal roaming guidance system according to an embodiment of the present disclosure, and referring to fig. 1, the system 100 includes a control node 101, a plurality of terminals (STAs) 102, and a plurality of APs 103 (e.g., APs 103a to 103c in fig. 1). The system 100 may be overlaid with a WLAN.

The control node 101 is configured to obtain various acquisition behavior characteristics of the terminal 102, where the acquisition behavior characteristics are used to indicate behavior characteristics of the terminal 102 when acquiring the network information of the AP. For any terminal 102, the control node 101 is further configured to determine whether the terminal 102 needs to roam, when the terminal 102 needs to roam, the control node 101 may further determine, according to the acquisition behavior feature of the terminal 102, to facilitate the terminal 102 to roam to the second AP, and issue, to the second AP, an operation that facilitates the terminal 102 to roam to the second AP, where the second AP performs the operation that facilitates the terminal 102 to roam to the second AP, so as to facilitate the terminal 102 to roam to the second AP. The control node is further configured to determine to perform an operation of suppressing the terminal 102 from roaming to a third AP, and send the operation of suppressing the terminal 102 from roaming to the third AP to at least one third AP of the terminal, where each third AP performs the operation of suppressing the terminal 102 from roaming to the third AP, so as to suppress the terminal 102 from roaming to the third AP. After the control node 101 completes the operation of facilitating the terminal 102 to roam to the second AP and the operation of suppressing the terminal 102 from roaming to the third AP, the control node 101 may also issue a roaming guidance instruction to the first AP currently accessed by the terminal 102 to instruct the first AP to guide the terminal 102 to roam from the first AP to the second AP. For example, the AP103a in fig. 1 is a first AP that the terminal 102 currently accesses, the AP103b is a second AP of the terminal 102, and the AP103c is a third AP of the terminal 102, then the control node 101 may issue, to the AP103b, an operation that facilitates the terminal 102 to roam to the second AP, so that the AP103b performs the issued operation, issue, to the AP103c, an operation that inhibits the terminal 102 from roaming to the third AP, so that the AP103c performs the issued operation, and send a roaming guidance instruction to the AP103a to instruct the AP103a to guide the terminal 102 to roam from the AP103a to the AP103b, and the AP103a may send a roaming guidance message to the terminal 102 to instruct the terminal 102 to roam from the AP103a to the AP103 b. The control node 101 may be a server, which may be an independent physical server, a server cluster or a distributed system formed by a plurality of physical servers, or a cloud server providing cloud computing services.

Any terminal 102 in the multiple terminals 102 is configured to receive the roaming guidance packet sent by the first AP, acquire network information of multiple neighbor APs of the first AP, compare network conditions indicated by the network information of the neighbor APs, determine a target AP where the terminal roams from the multiple neighbor APs based on a comparison result, and roam from the first AP to the target AP where the terminal roams. The terminal 102 may be an electronic device such as a mobile phone with a wireless interface, an intelligent wearable device, a tablet computer, and a notebook computer.

Any AP103 of the plurality of APs 103 is configured to access at least one terminal 102, and may provide network services, such as channels, wireless fidelity (WiFi) signals, and the like, for each terminal 102 that is accessed. For any terminal 102 accessed by the AP103, the AP103 is further configured to direct the terminal 102 to roam from the first AP to the second AP based on the roaming guidance instruction sent by the control node 101. When the AP103 is a second AP, the AP103 is further configured to receive an operation of facilitating the target terminal to roam to the second AP, where the operation is issued by the control node 101, and perform an operation of facilitating the target terminal to roam to the second AP, so as to facilitate the target terminal to connect with itself. When the AP103 is a third AP, the AP103 is further configured to receive an operation of suppressing the target terminal from roaming to the third AP, where the operation is issued by the control node 101, and execute the operation of suppressing the target terminal from roaming to the third AP, so as to avoid the target terminal from connecting with itself, where the target terminal is any terminal accessing to another AP 103.

It should be noted that, in a possible implementation manner, all or part of the functions of the control node 101 may also be implemented on the AP103, for example, the control node 101 is only responsible for acquiring the acquisition behavior characteristics of various terminals 102, and issues the acquisition behavior characteristics of various terminals 102 to each AP103, and the AP103 determines whether the terminal 102 accessed by the AP needs to roam, and when the terminal 102 needs to roam, the AP103 may further determine, according to the acquisition behavior characteristics of the terminal 102, an operation of facilitating the terminal 102 to roam to the second AP and a suppression operation, and send the operation of facilitating the terminal 102 to roam to the second AP, send an operation of suppressing the terminal 102 from roaming to the third AP to at least one third AP, and guide the terminal 102 to roam to the second AP.

The control node may be the control device shown in fig. 2, where fig. 2 is a schematic structural diagram of a control device provided in an embodiment of the present application, and the control device 200 includes a relatively large difference that may occur due to a difference in configuration or performance, and may include one or more processors (CPUs) 201 and one or more memories 202, where the memories 202 store at least one instruction, and the at least one instruction is loaded and executed by the processors 201 to implement steps performed by the control node in methods provided in the following method embodiments. Of course, the control device 200 may also have components such as a wired or wireless network interface, a keyboard, and an input/output interface, so as to perform input and output, and the control device 200 may also include other components for implementing device functions, which are not described herein again.

The AP may be the network device shown in fig. 3, fig. 3 is a schematic structural diagram of a network device provided in this embodiment, and the network device 300 includes a network device that may have a relatively large difference due to different configurations or performances, and may include one or more processors 301 and one or more memories 302, where the memory 302 stores at least one instruction, and the at least one instruction is loaded and executed by the processor 301 to implement the steps performed by the AP in the methods provided in the following method embodiments. Of course, the network device 300 may further have a wired or wireless network interface 303, and may also have components such as an input/output interface, etc. to facilitate input and output, and the network device 300 may further include other components for implementing device functions, which are not described herein again.

In an exemplary embodiment, a computer-readable storage medium, such as a memory, including instructions executable by a processor in a control device or a network device to perform a terminal roaming guidance method in the following embodiments is also provided. For example, the computer-readable storage medium may be a read-only memory (ROM), a Random Access Memory (RAM), a compact disc-read-only memory (CD-ROM), a magnetic tape, a floppy disk, an optical data storage device, and the like.

For further explaining the process of the control node guiding the terminal to roam according to the acquired behavior characteristics of the terminal, refer to a flowchart of a terminal roaming guiding method provided in the embodiment of the present application as shown in fig. 4.

401. The control node determines that the terminal needs to roam.

The terminal is any terminal, and the terminal is currently accessed to the first AP. The control node may determine whether the terminal needs to roam according to the motion state of the terminal and/or the service type of the service currently performed by the terminal.

When the terminal is away from the first AP, the signal strength between the first AP and the terminal may be weakened, and in order to avoid bringing a bad experience to the terminal user, the terminal may need to roam at this time. If the terminal is performing a target service, the terminal roaming may affect the target service performed by the terminal, and the terminal does not need to roam at this time, the target service may be any service previously specified by a technician, and the target service may be a real-time service, such as video chat.

In a possible implementation manner, when the motion state of the terminal indicates that the terminal is far away from the first AP, and/or the service type of the service currently performed by the terminal is a target service type, the control node determines that the terminal needs to roam, otherwise determines that the terminal does not need to roam, where the target service type is the service type of the target service. For example, the control node determines that the terminal needs to roam as long as the motion state of the terminal indicates that the terminal is moving away from the first AP. For another example, as long as the service type of the service currently performed by the terminal is the target service type, the control node determines that the terminal needs to perform roaming. For another example, the control node may determine that the terminal needs to roam only when the motion state of the terminal indicates that the terminal is away from the first AP and the service type of the service currently performed by the terminal is the target service type.

402. And the control node acquires the acquisition behavior characteristics of the terminal, wherein the acquisition behavior characteristics are used for indicating the behavior characteristics of the terminal when the terminal acquires the network information of the AP.

The method for acquiring the network information of the AP by the terminal may include an active detection method or a passive listening method, where the active detection method is as follows: for any first channel of at least one first channel to be probed, the terminal may send a probe request (probe request) to the first channel, where an AP corresponding to the first channel may receive the probe request from the first channel, and based on the received probe request, send a probe response (probe response) carrying network information of the AP from the first channel to the terminal, the terminal receives the probe response sent by the AP and obtains the network information of the AP from the probe response, and after the terminal sends a probe request to the first channel, after a probe duration elapses, the terminal leaves the first channel, goes to another first channel of the at least one first channel, and sends a probe request to another first channel to obtain a probe response sent by an AP corresponding to another first channel, where the probe duration is a duration of staying of a single channel of the terminal.

The at least one first channel is also a channel that can be detected by the terminal through an active detection mode. In a possible implementation, some terminals have no special requirement on the channel range of active probing, that is, all channels can be actively probed, and in this case, the at least one first channel may be a channel within the full channel range, that is, the at least one first channel includes all channels. In another possible implementation manner, some terminals have specific requirements on the channel range of the active probing, and in this case, the at least one first channel may constitute a first channel set actively probed by the terminal, that is, the first channel in the first channel set is a channel that can be actively probed by the terminal. For example, a Dynamic Frequency Selection (DFS) channel exists in a 5GHz band, but a terminal can only perform active detection on a non-DFS channel, but cannot perform active detection on the DFS channel, and then the non-DFS channels in the 5GHz band may be grouped into a first channel set.

The passive interception mode is as follows: for any one second channel in at least one second channel to be intercepted, within an intercepting time period, the terminal may intercept, on the second channel, network information that is actively sent to the terminal by an AP corresponding to the second channel, and if the network information of the AP is intercepted, after a dwell time period elapses, regardless of whether the terminal can intercept the network information of the AP, the terminal leaves the second channel, goes to another second channel in the at least one second channel, and intercepts, on another second channel, network information that is sent to the terminal by an AP corresponding to another second channel. The AP corresponding to the second channel may send a unicast beacon frame carrying the network information of the AP to the terminal, and may also send a probe response carrying the network information of the AP to the terminal, so as to send the network information to the terminal.

The at least second channel is also the channel that the terminal can listen to by passive listening. In a possible implementation, there are terminals that have no specific requirements on the range of channels to be sensed, i.e. all channels can be sensed, and in this case, the at least one second channel may be a channel within the full channel range, i.e. the at least one second channel includes all channels. In another possible implementation manner, the channel ranges of the same frequency band of the wireless networks in different regions may be different, so that the terminal may not be able to listen to all channels within the full channel range of each region, and at this time, the at least one second channel may form a second channel set listened by the terminal, that is, the second channel in the second channel set is a channel that the terminal can listen to. For example, in a region where DFS channels exist in a 5GHz band covered by the terminal, the DFS channels in the 5GHz band may be grouped into a second set of channels, and the terminal can only actively detect on non-DFS channels but not on DFS channels.

The obtaining behavior feature may include an active identifier and/or a passive identifier, where the active identifier is used to indicate the active probing manner, that is, to indicate the terminal to obtain the network information of the AP corresponding to the at least one first channel by sending a probe request to the at least one first channel. The passive flag is used to indicate the passive listening mode, that is, to indicate that the AP corresponding to the at least one second channel listens to the network information sent to the terminal on the at least one second channel.

The behavior obtaining characteristics may further include a staying time period during which the terminal stays in a single channel and a roaming time period of the terminal, where the roaming time period of the terminal is a time period from when the terminal receives a roaming guidance message sent by the first AP to when the terminal completes roaming, and the roaming guidance message is used to instruct the terminal to roam.

The control node may acquire the acquisition behavior feature of the terminal in the following manner 1 or manner 2.

In the mode 1, the control node may obtain the stored obtaining behavior characteristics of the terminal.

The control node may generate the acquisition behavior feature of each terminal first, and then store the acquisition behavior feature of each terminal in the feature table, so that a subsequent control node may find the acquisition behavior feature of the terminal from the feature table according to the identifier of the terminal. In a possible implementation manner, when the acquisition behavior feature of the terminal can be queried in the feature table, the control node may acquire the acquisition behavior feature of the terminal from the feature table, otherwise, the control node may generate the acquisition behavior feature of the terminal and then acquire the generated acquisition behavior feature of the terminal, or acquire the acquisition behavior feature of the terminal in the following manner 2, and after the control node acquires the acquisition behavior feature of the terminal, the acquired acquisition behavior feature of the terminal may be stored in the feature table for subsequent lookup.

The characteristic table may include a plurality of acquisition behavior characteristics and an identifier of a terminal corresponding to each acquisition behavior characteristic. The identifier of the terminal may include at least one of a number of the terminal, a Media Access Control (MAC) address of the terminal, a type identifier of the terminal, a system version identifier of the terminal, and a manufacturer version identifier of the terminal, where the type identifier of the terminal is used to indicate a type of the terminal, such as whether the terminal is a smart phone or a laptop, the type identifier of the terminal is used to identify a type of the terminal, such as whether the terminal is a huawei p30 pro type phone or a honor 10 type phone, the system version identifier of the terminal is used to indicate a version of a system used by the terminal, such as Android 10, and the manufacturer version identifier of the terminal is used to indicate a manufacturer version of the terminal, such as an emotional user interface (EUMI) 10.

For example, the characteristic table shown in table 1, the full channel set may include all channels, and terminal 1 may perform active probing on all channels, and the full channel set may be composed of a first channel set and a second channel set, where terminal 2 may perform active probing on a first channel in the first channel set and may also listen to a second channel in the second channel set, and terminal 3 may listen to all channels.

TABLE 1

Identification of terminal	Detecting behavioral characteristics
		Terminal 1	Active identification
Terminal 2	An active identifier, a first set of channels; passive identification, second set of channels
		Terminal 3	Passive marker
...	...

A technician may test the terminal to determine whether the acquisition mode of the terminal for acquiring the network information of the AP is an active probing mode or a passive listening mode. When the acquisition mode of the terminal is an active probing mode and the terminal has no special requirement on the channel range of the active probing, the acquisition behavior characteristics of the terminal may only include an active identifier. When the acquisition mode of the terminal is an active detection mode and the terminal can only perform active detection on a first channel in the first channel set, the acquisition behavior characteristics of the terminal may include an active identifier and the first channel set, where the first channel set corresponds to the active identifier. When the acquisition mode of the terminal is a passive listening mode and the terminal has no special requirement on the range of the monitored channel, the acquisition behavior characteristic of the terminal may only include a passive identifier. When the acquisition mode of the terminal is a passive listening mode and the terminal can only listen in a second channel in the second channel set, the acquisition behavior characteristics of the terminal may include a passive identifier and the second channel set, where the second channel set corresponds to the active identifier. When the terminal can not only detect at least one first channel but also listen to at least one second channel, the acquiring behavior characteristics of the terminal include an active identifier, a passive identifier, a first channel set and a second channel set. When the roaming duration and the staying duration of the terminal are tested, the acquiring behavior characteristics of the terminal may further include the roaming duration and the staying duration of the terminal.

After determining the acquisition behavior characteristics of the terminal, a technician can upload the acquisition behavior characteristics of the terminal on an acquisition behavior characteristic generation interface of the control node; when the control node detects that the technician uploads the terminal acquisition behavior characteristics on the interface, the control node can be triggered to acquire the contents uploaded by the technician so as to generate the acquisition behavior characteristics of the terminal.

And 2, the control node receives the acquired behavior characteristics of the terminal sent by the target equipment.

The target device is any device except the control node for generating the acquisition behavior feature of the terminal, and after the target device generates the acquisition behavior feature of the terminal, the acquisition behavior feature of the terminal can be sent to the control node, so that the control node can receive the acquisition behavior feature of the terminal. The process of generating the behavior obtaining characteristic of the terminal by the target device is the same as the process of generating the behavior obtaining characteristic of the terminal by the control node, and here, the process of generating the behavior obtaining characteristic of the terminal by the target device is not described in detail in the embodiments of the present application.

In a possible implementation manner, the control node or the target device may also learn the acquisition behavior characteristics of various terminals on line based on an Artificial Intelligence (AI) model.

403. The control node determines a second AP and at least one third AP from a plurality of neighbor APs of a first access point AP accessed by the terminal.

The control node may determine multiple candidate target APs from the multiple neighbor APs, where signal strengths between the multiple candidate target APs and the terminal may all be higher than a signal strength between the first AP and the terminal.

The control node may also determine at least one second AP and at least one third AP from the plurality of candidate target APs. In order to avoid this situation, the control node may use at least one candidate target AP located in the moving direction of the terminal as at least one second AP, that is, at least one target AP, in order to avoid the situation, where the terminal does not need to perform frequent roaming operations during the moving process of the terminal, and once the terminal roams to an AP located in a non-moving direction, for example, an AP located in a reverse direction to the moving direction of the terminal, the strength of the wireless signal received by the terminal may be weakened along with the movement of the terminal, and the subsequent terminal needs to perform frequent roaming to enable the terminal to always receive a stronger wireless signal.

In a possible implementation manner, the control node may use an AP located in the terminal moving direction and having the best or better network condition among the candidate target APs as the second AP, and use an AP other than the second AP among the candidate target APs as the third AP. In the embodiment of the present application, only one second AP is taken as an example for description. The channel of the second AP may be any one of at least one first channel that the terminal can detect, or may also be any one of at least one second channel that the terminal can listen to.

404. The control node determines to facilitate roaming of the terminal to the second AP based on the obtained behavior feature.

Facilitating roaming of the terminal to the second AP may include facilitating at least one of operations 1-6 described below.

Promotion operation 1: and if the probe request sent by the terminal is received, sending a probe response carrying the network information of the second AP to the terminal, wherein the network information of the second AP is used for indicating the network condition of the second AP.

Considering that the second AP may receive the probe request of the terminal, but the second AP may not necessarily return a probe response to the terminal, when the second AP does not return a probe response to the terminal, the terminal may not acquire the network information of the second AP, which may result in that the terminal may not use the second AP as a target AP for roaming of the terminal. For example, after the second AP receives more probe requests, if the second AP replies one probe response based on each received probe request, the number of the replied probe responses is large, a probe storm is likely to occur, and thus, air interface resources of the second AP are wasted, and the second AP may ignore part of the probe requests and reply only part of the probe requests in order to avoid the waste of the air interface resources, so that for the ignored probe requests, the second AP may not send a probe response to the terminal that sent the probe request, and thus the terminal may not obtain network information of the second AP. For this case, the control node may issue a promotion operation 1 to the second AP to indicate that the second AP must return a probe response to the terminal as long as the second AP receives the probe request sent by the terminal, so as to promote the terminal to acquire the network information of the second AP.

The promotion operation 2: and if the detection request sent by the terminal is not received in the target time period in the roaming guide time period, actively sending the network information of the second AP to the terminal.

The roaming guidance time period is determined by a roaming time duration of the terminal, the roaming guidance time period may be the roaming time duration, and the target time period may be any time duration within the roaming guidance time period, for example, a time duration 200ms after the first 500ms of the roaming guidance time period may be the target time period, where the first 500ms may be a time duration during which the control node transmits an operation for facilitating the terminal to roam to the second AP, and the 200ms may be a time duration during which the terminal stays in the second AP channel. Alternatively, the time length of the first 700ms of the roaming guidance time period is directly used as the target time period. The target time period is not specifically limited in the embodiment of the present application.

Considering that if the probe request sent by the terminal to the second AP is lost in the channel of the second AP, and the probe request cannot reach the second AP, the second AP will not receive the probe request sent by the terminal, and the second AP will not send a probe response to the terminal, which will cause the terminal to be unable to obtain the network information of the second AP, and the terminal will not use the second AP as the target AP for roaming of the terminal. The control node may also issue the facilitation operation 2 to the second AP to instruct the second AP to actively send network information to the terminal, so as to facilitate the terminal to acquire the network information of the second AP.

Facilitating operation 3: and sending the network information of the second AP to the terminal at a first power which is larger than the working power of the second AP.

The working power of an AP is the power used by the AP to send network information to the terminal under normal conditions. Taking the example that the second AP sends the network information to the terminal by returning the probe response to the terminal, when the second AP sends the probe response to the terminal, if the terminal is interfered, the signal strength of the probe response received by the terminal may be low, and subsequently, the terminal may not use the second AP as a target AP for roaming of the terminal, for example, the signal strength of the probe response received by the terminal is reduced due to shielding of a building. The control node may issue a facilitation action 3 to the second AP to instruct the second AP to send a probe response to the terminal by increasing power, so as to increase the signal strength of the probe response, so that after the probe response passes through the building, the strength of the probe response received by the terminal is still relatively large.

The facilitating operation 4: and sending first target network information to the terminal, wherein the network condition indicated by the first target network information is superior to the actual network condition of the second AP.

Considering that the terminal may preferentially select the AP with a better network condition when selecting the target AP where the terminal roams, the control node may issue the facilitation operation 4 to the second AP to instruct the second AP to send the first target network information to the terminal, so that the terminal may consider that the network condition of the second AP is better based on the first target network information, so as to increase the probability that the second AP becomes the target AP where the terminal roams.

In order to ensure that the network condition indicated by the first target network information is better than the actual network condition of the second AP, the load condition indicated by the load information in the first target network information may be lower than the actual load condition of the second AP. In a possible implementation manner, the first target network information may include a first channel utilization rate and/or a first number of access terminals, where the first channel utilization rate is lower than an actual channel utilization rate of the second AP, that is, a false channel utilization rate, and the first number of access terminals is lower than an actual number of access terminals of the second AP, that is, a false number of access terminals, so that the network information of the second AP may be beautified by the first target network information, and therefore, the terminal may consider that the load of the second AP is small and the network condition of the second AP is good based on the first target network information.

The promotion operation 5: and in the roaming guide time period, the network information of the second AP is sent to the terminal for multiple times, and the sending interval of two adjacent times is less than the staying time of the terminal in a single channel.

In order to avoid that the terminal cannot acquire the network information of the second AP in the roaming guidance time period, the control node may issue the promotion operation 5 to the second AP to instruct the second AP to send the network information to the terminal for multiple times, so that the terminal may acquire the network information of the second AP within the retention time of the terminal in the channel of the second AP.

The facilitating operation 6: and the second AP is configured to instruct to actively send the network information of the second AP to the terminal.

When the terminal listens to the network information of the second AP in a passive listening manner, the second AP does not necessarily send the network information to the terminal, so that the terminal cannot listen to the channel of the second AP and send a probe response to the second AP, and the terminal cannot preferentially use the second AP as a target AP for roaming of the terminal. The control node may issue the facilitation operation 6 to the second AP to instruct the second AP to actively send network information to the terminal, so as to facilitate the terminal to acquire the network information of the second AP.

A plurality of the facilitating operations 1-6 described above may be combined together as an operation to facilitate roaming of the terminal to the second AP, for example facilitating operation 1 and facilitating operation 3 may be combined as: and if the probe request sent by the terminal is received, sending a probe response carrying the network information of the second AP to the terminal at a first power which is larger than the working power of the second AP. The embodiment of the present application does not specifically limit the combination manner in the operation promoting manner.

The control node may determine to facilitate roaming of the terminal to the second AP based on the acquisition behavior indicated by the acquisition behavior feature, and in one possible implementation, the control node may determine to facilitate roaming of the terminal to the second AP as at least one of facilitated modes 1-5 based on an active identification in the acquisition behavior feature, and/or determine to facilitate roaming of the terminal to the second AP as at least one of facilitated modes 3-6 based on a passive identification in the acquisition behavior feature.

405. For any of the at least one third AP, the control node determines to refrain from roaming for the terminal to the third AP.

The operation of suppressing the terminal from roaming to the third AP includes at least one of the following suppression operations 1-2 or the following suppression operation 3.

Suppression operation 1: and sending the network information of the third AP to the terminal at a second power smaller than the working power of the third AP, wherein the network information of the third AP is used for indicating the network condition of the third AP.

Considering that the terminal may preferentially use the AP with higher network strength as the target AP for the terminal to roam, the control node may send suppression operation 1 to the third AP to instruct the third AP to send the network information to the terminal at lower power, so that the terminal determines that the network strength of the third AP is lower based on the probe response carrying the network information of the third AP, and may suppress the terminal from roaming to the third AP.

Suppression operation 2: and sending second target network information to the terminal, wherein the network condition indicated by the second target network information is inferior to the actual network condition of the third AP.

In order to ensure that the network condition indicated by the second target network information is inferior to the actual network condition of the third AP, the load condition indicated by the load information in the second target network information may be higher than the actual load condition of the third AP. In a possible implementation manner, the second target network information may include a second channel utilization rate and/or a second number of access terminals, where the second channel utilization rate is higher than an actual channel utilization rate of the third AP, that is, a false channel utilization rate, and/or the second number of access terminals is higher than an actual number of access terminals of the third AP, that is, a false number of access terminals, so that the network information of the third AP may be degraded by the second target network information, and therefore, based on the second target network information, the terminal may consider that the load of the third AP is small, the network condition of the third AP is poor, and thus the terminal may be inhibited from roaming to the third AP.

Considering that the terminal may preferentially select an AP with a better network condition when selecting a target AP where the terminal roams, the control node may issue the suppression operation 2 to the third AP to instruct the third AP to send the second target network information to the terminal, so that the terminal may consider that the network condition of the second AP is worse based on the second target network information.

The control node issues the suppression operation 3 to the third AP, so that the third AP may trigger not to send the network information of the third AP to the terminal within the roaming guidance time period when executing the suppression operation mode 3, thereby avoiding that the terminal acquires the network information of the third AP, and avoiding that the third AP becomes a target AP for the terminal roaming.

And when the operation of inhibiting the terminal from roaming to the third AP includes an inhibition mode 1 and an inhibition mode 2, inhibiting the operation of inhibiting the terminal from roaming to the third AP, that is, sending the second target network information to the terminal at a second power less than the operating power of the third AP.

When the terminal is based on the active probing manner or the passive listening manner, the terminal may obtain the network information of the third AP from the probe response sent by the third AP, and then the control node may send at least one of the suppression operations 1-2 or the suppression operation 3 to the third AP to suppress the terminal from roaming to the third AP.

It should be noted that, both step 404 and step 405 are optional steps, and when the control node does not execute step 404 or step 405, the specific promotion operation may also be determined by the second AP, or the specific suppression operation may also be determined by the third AP. When the control node executes step 404 and step 405, step 405 may be executed first, and then step 404 is executed, or step 404 and step 405 may be executed simultaneously, and the execution sequence of step 404 and step 405 is not specifically limited in this embodiment of the application.

406. The control node sends a roaming facilitation instruction to the second AP based on an operation to facilitate roaming of the terminal to the second AP, the roaming facilitation instruction being used for instructing the second AP to perform an operation to facilitate roaming of the terminal to the second AP.

The roaming facilitation instruction may also be for instructing the second AP to facilitate roaming of the terminal to the second AP. When the operation to facilitate the terminal roaming to the second AP is determined by the second AP, the roaming facilitation instruction may include only a first target identifier and address information of the terminal, the first target identifier being used to instruct the second AP to perform the operation to facilitate the terminal roaming to the second AP and also being used to instruct the second AP to facilitate the terminal roaming to the second AP. The address information of the terminal may be a MAC address of the terminal.

When the operation to facilitate roaming of the terminal to the second AP is determined by the control node, the roaming facilitation instruction may further include a facilitation operation identification indicating that the operation to facilitate roaming of the terminal to the second AP is to be facilitated, e.g., when the operation to facilitate roaming of the terminal to the second AP includes facilitation operations 1 and 3, then the facilitation operation identification includes an identification to facilitate operation 1 and an identification to facilitate operation 3. The roaming facilitating instruction may further include a roaming duration, a stay duration, and a duration of time for the terminal to transmit the roaming facilitating instruction from the control node to the second AP, so that the second AP may perform facilitating operations to facilitate the terminal roaming to the second AP according to the roaming duration, the stay duration, and the duration of time for the roaming facilitating instruction to transmit from the control node to the second AP.

It should be noted that the process shown in step 406 is also a process in which the control node sends a roaming promotion instruction to the second AP.

407. For any third AP of the at least one third AP, the control node sends a roaming suppression instruction to the third AP based on the operation of suppressing the terminal from roaming to the third AP, where the roaming suppression instruction is used to instruct the third AP to perform the operation of suppressing the terminal from roaming to the third AP.

The roam-inhibit instruction may also be used to instruct the third AP to inhibit the terminal from roaming to the third AP. When the operation of suppressing the terminal from roaming to the third AP is determined by the third AP, the roaming suppression instruction may only include a second target identifier and address information of the terminal, where the second target identifier is used to instruct the third AP to perform the operation of suppressing the terminal from roaming to the third AP, and may also be used to instruct the third AP to suppress the terminal from roaming to the third AP.

When the operation of suppressing the terminal from roaming to the third AP is determined by the control node, the roaming suppression instruction may further include a suppression operation identifier, which is used to indicate an operation of suppressing the terminal from roaming to the third AP, for example, the operation of suppressing the terminal from roaming to the third AP includes a suppression operation 3, and then the suppression operation identifier includes an identifier of the suppression operation 3. The roaming suppression instruction may further include a roaming duration, a staying duration, and a duration of transmission of the roaming suppression instruction from the control node to the third AP, so that the third AP may perform a suppression operation according to the roaming duration, the staying duration, and the duration of transmission of the roaming suppression instruction from the control node to the third AP, so as to suppress roaming of the terminal to the third AP.

It should be noted that the process shown in step 407 is also a process in which the control node sends a roaming suppression instruction to the third AP. The control node may execute step 406 and this step 407 at the same time, or may execute this step 407 first and then execute step 406, and the execution sequence of steps 406 to 407 is not specifically limited in this embodiment of the application.

408. And the control node sends a roaming guiding instruction to the first AP, wherein the roaming guiding instruction is used for indicating the first AP to guide the terminal to roam from the first AP to the second AP.

The roaming direction may include an identification of the second AP, an identification of a guidance protocol supported by the terminal, and address information of the terminal. The process shown in this step 408 is also a process in which the control node directs the terminal to roam from the first AP to the second AP.

It should be noted that, the control node may perform steps 406 to 408 simultaneously, that is, may transmit the roaming facilitation instruction, the roaming suppression instruction and the roaming guidance message simultaneously, at this time, the roaming facilitation instruction may include a time length for the roaming facilitation instruction to be transmitted from the control node to the second AP, so that the second AP determines an occasion for performing the facilitation operation, and the roaming suppression instruction may include a time length for the roaming suppression instruction to be transmitted from the control node to the third AP, so that the third AP determines an occasion for performing the suppression operation. In a possible implementation manner, the control node may also send the roaming guidance instruction to the first AP after the roaming promotion instruction reaches the second AP and the roaming suppression instruction reaches the third AP, which may be understood as: after the control node sends the roaming promotion instruction and the roaming suppression instruction, a roaming guide instruction is sent after a target time length, wherein the target time length is the larger time length of the roaming promotion instruction transmitted from the control node to the second AP and the time length of the roaming suppression instruction transmitted from the control node to the third AP. Then the roaming facilitation instruction may not include a duration for transmitting the roaming facilitation instruction from the control node to the second AP, or the roaming suppression instruction may not include a duration for transmitting the roaming suppression instruction from the control node to the third AP, and when the roaming facilitation instruction is received by the second AP, the facilitation operation may be performed, and when the roaming suppression instruction is received by the third AP, the suppression operation may be performed.

409. And the first AP receives the roaming guide instruction and sends a roaming guide message to the terminal based on the roaming guide instruction, wherein the roaming guide message is used for indicating the terminal to roam from the first AP to the second AP.

The first AP may determine a terminal to be guided according to address information of the terminal carried by the roaming guidance instruction, determine a guidance protocol supported by the terminal to be guided according to an identifier of the guidance protocol carried by the roaming guidance instruction, and encapsulate the roaming guidance instruction into a roaming guidance packet based on the guidance protocol supported by the terminal. The process shown in this step 409 is also a process in which the first AP directs the terminal to roam from the first AP to the second AP.

410. And the terminal receives the roaming guide message and acquires the network information of the second AP and the at least one third AP based on the roaming guide message.

When the terminal receives the roaming guidance message, it indicates that the terminal needs to roam, and the terminal may acquire the network information of the second AP and the at least one third AP in an active detection manner or a passive listening manner, so that the terminal screens out a target AP where the terminal roams from the second AP and the at least one third AP based on a roaming condition built in the terminal.

411. The second AP receives a roaming facilitation instruction.

412. The second AP performs an operation of facilitating roaming of the terminal to the second AP based on the roaming facilitation instruction.

The second AP may determine a terminal to be transmitted based on the address information of the terminal in the roaming promotion instruction. When the roaming facilitation instruction does not include a facilitation operation identification, then the second AP may determine to facilitate operation of the terminal to roam to the second AP. Here, the process that the second AP determines to facilitate the operation that the terminal roams to the second AP is the same as the process that the control node determines to facilitate the operation that the terminal roams to the second AP, and here, the embodiment of the present application does not repeat the process that the second AP determines to facilitate the operation that the terminal roams to the second AP.

When the roaming facilitation instruction includes a facilitation operation identification, the second AP may determine to facilitate the operation of the terminal roaming to the second AP based on the facilitation operation identification. The second AP may further determine a roaming guidance time period according to the roaming duration included in the roaming facilitation instruction, and determine an opportunity to perform an operation for facilitating roaming of the terminal to the second AP based on the duration of transmission of the roaming facilitation instruction from the control node to the second AP included in the roaming facilitation instruction. In one possible implementation, the second AP may perform an operation of facilitating roaming of the terminal to the second AP from the initial time of the roaming guidance period by a duration that the roaming facilitating instruction is transmitted from the control node to the second AP.

The second AP may facilitate roaming of the terminal to the second AP by performing an operation that facilitates roaming of the terminal to the second AP, that is, sending network information of the second AP to the terminal. The second AP may send its own network information to the terminal by sending a probe response or a unicast beacon frame carrying the second AP network information to the terminal. In a possible implementation manner, when the second AP is sending its own network information to the terminal, the second AP may also first compose the identifier of the second AP, the identifier of the channel of the second AP, the frequency band of the second AP, the load information of the second AP, and other basic information of the second AP into the network information of the second AP, and the second AP may further generate a probe response or a unicast beacon frame based on the network information of the second AP, and send the probe response or the unicast beacon frame to the terminal by performing an operation that facilitates the terminal to roam to the second AP, so as to facilitate the terminal to roam to the second AP.

In a possible implementation manner, when the operation of facilitating the terminal to roam to the second AP includes facilitating operation 1, the second AP may wait for the terminal to send a probe request, and if the probe request sent by the terminal is received, send a probe response carrying network information of the second AP to the terminal, so as to facilitate the terminal to roam to the second AP.

In a possible implementation manner, when the operation of facilitating the terminal to roam to the second AP includes facilitating operation 2, the second AP waits for the terminal to send the probe request in a target time period within the roaming guidance time period, and if the probe request sent by the terminal is not received in the target time period, it is described that packet loss may occur in the probe request sent by the terminal to the second AP, and the second AP actively sends network information to the terminal, so that a situation that the second AP does not reply a probe response to the terminal due to packet loss of the probe request sent by the terminal can be avoided, and since the target time period is within the roaming guidance time period, the terminal can acquire the network information of the second AP within the roaming duration, so as to facilitate the terminal to roam to the second AP.

In one possible implementation, when facilitating the roaming of the terminal to the second AP includes facilitating operation 3, if the second AP transmits network information to the terminal, the network information of the second AP is transmitted to the terminal at a first power that is greater than an operating power of the second AP. Taking the example of sending the network information to the terminal through the probe response, since the first power is greater than the working power of the second AP, the signal strength of the probe response sent by the second AP to the terminal is relatively high, so that the signal strength of the probe response can be increased to compensate for the signal strength with reduced interference, and the signal strength of the probe response received by the terminal can be relatively high, so that the terminal can preferentially use the second AP as a target AP for roaming of the terminal, so as to promote the terminal to roam to the second AP. The difference between the first power and the second operating power may be a first target difference, and the first target difference is not specifically limited in this embodiment of the application.

In a possible implementation manner, when the operation of facilitating the terminal to roam to the second AP includes facilitating operation 4, the second AP may send the first target network information to the terminal, but not send the actual network information of the second AP to the terminal, so that the terminal uses the first target network information as the actual network information of the second AP, and thus the terminal considers that the load of the second AP is less, and the network condition is better, so that the terminal may preferentially use the second AP as the target AP for the terminal to roam to facilitate the terminal to roam to the second AP.

In one possible implementation, when the operation of facilitating the terminal to roam to the second AP includes facilitating operation 5, the second AP may transmit the network information of the second AP to the terminal multiple times within the roaming guidance time period, where an interval between two adjacent transmissions is smaller than a dwell time of the terminal on a single channel. Since the sending interval of the two adjacent times is less than the staying time of the terminal in a single channel, it can be ensured that when the terminal actively detects or passively listens to the second AP within the roaming guiding time, the network information of the second AP can be acquired, so that the terminal can preferentially use the second AP as the target AP for the terminal to roam, so as to promote the terminal to roam to the second AP.

In a possible implementation manner, when the operation of facilitating the terminal to roam to the second AP includes facilitating operation 6, which indicates that the terminal listens to the probe request sent by the second AP, the second AP may actively send the network information of the second AP to the terminal, so that the terminal may listen to the network information of the second AP, so as to preferentially regard the second AP as a target AP for the terminal to roam, so as to facilitate the terminal to roam to the second AP.

In one possible implementation, when facilitating the roaming of the terminal to the second AP includes facilitating any combination of operations 1-6, then the second AP performs the facilitating operation that combines the facilitating operations to facilitate the roaming of the terminal to the second AP. For example, the operation of facilitating roaming of the terminal to the second AP includes facilitating operation 1 and facilitating operation 3, and the second AP transmits a probe response to the terminal at a first power greater than an operating power of the second AP if receiving the probe request transmitted by the terminal.

It should be noted that, when the operation of facilitating the terminal to roam to the second AP includes facilitating operation 4, the second AP may first generate the first target network information and then send the generated first target network information to the terminal, where the process of generating the first target network information by the second AP may be implemented by following steps 1 to 3.

Step 1, the second AP determines the actual channel utilization rate of the second AP and/or the actual number of access terminals of the second AP.

The second AP may measure a channel of the second AP to obtain an actual channel utilization rate of the second AP at the current time, and obtain an actual number of access terminals of the second AP at the current time according to a condition of the current access terminal.

And 2, the second AP determines a first channel utilization rate and/or a first access terminal number based on the actual channel utilization rate and/or the actual access terminal number, wherein the first channel utilization rate is lower than the actual channel utilization rate, and the first access terminal number is lower than the actual access terminal number.

The first channel utilization is also the channel utilization sent to the terminal, and the number of the first access terminals is also the number of the access terminals sent to the terminal. The second AP may first obtain a first channel rate threshold and/or a first number of terminals threshold, and when the first channel rate threshold is lower than the actual channel utilization rate, the second AP may use the first channel rate threshold as the first channel utilization rate, and/or when the first number of terminals threshold is lower than the actual number of access terminals, the second AP may use the first number of terminals threshold as the first number of access terminals. The first channel rate threshold and the first terminal number threshold are not specifically limited in the embodiments of the present application.

Or, the second AP may further perform a difference between the actual channel utilization rate and the first target channel utilization rate, where the obtained difference is a channel utilization rate lower than the actual channel utilization rate, and the difference is used as the first channel utilization rate. The second AP may further perform a difference between the actual number of access terminals and the first target number of access terminals, where the obtained difference is a number of terminals lower than the actual number of access terminals, and use the difference as the first number of access terminals. The first target channel utilization rate and the number of the first target terminals are not specifically limited in the embodiments of the present application.

And 3, the second AP generates the first target network information based on the first channel utilization rate and/or the number of the first access terminals.

The second AP may use the first channel utilization and/or the number of the first access terminals as fake load information, and compose the fake load information, the identifier of the second AP, the identifier of the channel of the second AP, the frequency band of the second AP, and the like into the first target network information, which is the fake network information of the second AP.

413. For any third AP of the at least one third AP, the third AP receives a roam suppression instruction.

414. And the third AP executes the operation of restraining the terminal from roaming to the third AP based on the roaming restraining instruction.

The third AP may determine the terminal to be suppressed based on the address information of the terminal in the roaming suppression instruction. When the roaming suppression instruction does not include the suppression operation identifier, the third AP may determine to suppress the operation of the terminal roaming to the third AP. Here, the process of determining to suppress the operation of roaming from the terminal to the third AP by the third AP is the same as the process of determining to suppress the operation of roaming from the terminal to the third AP by the control node, and here, the embodiment of the present application does not repeat the process of determining to suppress the operation of roaming from the terminal to the third AP by the third AP.

When the roaming facilitation instruction includes a suppression operation identifier, the second AP may determine to facilitate the operation of the terminal roaming to the second AP based on the suppression operation identifier. The second AP may further determine a roaming guiding time period according to the roaming duration included in the roaming suppression instruction, and determine an opportunity to perform an operation of suppressing the terminal from roaming to the second AP based on the duration of the roaming suppression instruction included in the roaming suppression instruction transmitted from the control node to the third AP. In a possible implementation manner, after the period of time that the roaming suppression instruction is transmitted from the control node to the third AP from the initial time of the roaming guidance time period, the third AP may perform an operation of suppressing the terminal from roaming to the second AP, so as to suppress the terminal from roaming to the third AP.

In one possible implementation, when the operation of suppressing the terminal from roaming to the third AP includes suppressing operation 1, the third AP may transmit the network information of the third AP to the terminal at a second power less than an operating power of the third AP as long as the third AP transmits the network information to the terminal. Taking the example of sending the network information to the terminal by sending the probe response carrying the network information of the third AP to the terminal, since the second power is less than the working power of the third AP, the signal strength of the probe response received by the terminal will be weak, and thus the terminal will not preferentially use the third AP as the target AP for roaming of the terminal, so as to inhibit the terminal from roaming to the third AP.

In a possible implementation manner, when the operation of suppressing the terminal from roaming to the third AP includes the suppression operation 2, the third AP may send the second target network information to the terminal, but not send the actual network information of the third AP to the terminal, so that the terminal uses the second target network information as the actual network information of the third AP, and thus the terminal considers that the third AP is heavily loaded and the network condition is poor, and the third AP will not be preferentially used as the target AP for the terminal to roam so as to suppress the terminal from roaming to the third AP.

In a possible implementation manner, when the operation of suppressing the terminal from roaming to the third AP includes suppression operation 3, the third AP is triggered not to send the network information of the third AP to the terminal, and if the third AP receives the probe request sent by the terminal, the third AP may ignore the probe request and may not return a probe response to the terminal. If the terminal listens to the network information of the third AP in a passive listening manner, the third AP will not actively send the network information of the third AP to the terminal, so that the terminal can be prevented from acquiring the network information of the third AP, and the terminal can be prevented from using the third AP as a target AP for the terminal to roam so as to inhibit the terminal from roaming to the third AP.

It should be noted that, when the operation of suppressing the terminal from roaming to the third AP includes the suppression operation 2, the third AP may generate the second target network information first and then send the generated second target network information to the terminal, where the generation of the second target network information by the third AP may be implemented by the following steps a to C.

And step A, the third AP determines the actual channel utilization rate of the third AP and/or the actual number of access terminals of the third AP.

The process shown in step a is the same as the process shown in step 1, and here, this step a is not described in detail in this embodiment of the present application.

And step B, the third AP determines a second channel utilization rate and/or a second access terminal number based on the actual channel utilization rate and/or the actual access terminal number, wherein the second channel utilization rate is higher than the actual channel utilization rate, and the second access terminal number is higher than the actual access terminal number.

The second channel utilization rate is also the channel utilization rate sent by the third AP to the terminal, and the number of the second access terminals is also the number of the access terminals sent by the third AP to the terminal. The third AP may first obtain a second channel rate threshold and/or a second number of terminals threshold, and when the second channel rate threshold is higher than the actual channel utilization rate, the third AP may use the second channel rate threshold as the second channel utilization rate, and when the second number of terminals threshold is higher than the actual number of access terminals, the third AP may use the second number of terminals threshold as the second number of access terminals. The second channel rate threshold and the second terminal number threshold are not specifically limited in the embodiments of the present application.

Alternatively, the third AP may also sum the actual channel utilization ratio and the second target channel utilization ratio, obtain a sum value of channel utilization ratios higher than the actual channel utilization ratio, and use the sum value as the second channel utilization ratio. The third AP may also sum the actual number of access terminals and a second target number of terminals, obtain a sum of the number of terminals higher than the actual number of access terminals, and use the sum as the second number of access terminals. The second target channel utilization rate and the number of the second target terminals are not specifically limited in the embodiment of the present application.

And step C, the third AP generates second target network information based on the second channel utilization rate and/or the second access terminal number.

The third AP may use the second channel utilization and/or the number of the second access terminals as fake load information, and compose the fake load information, the identifier of the third AP, the identifier of the channel of the third AP, the frequency band of the third AP, and the like into the second target network information, which is the fake network information of the third AP.

415. The terminal determines that the second AP is a target AP of the terminal roaming based on the acquired network information of the second AP and the network information of the at least one third AP, and the first AP roams to the second AP.

After the second AP performs an operation that facilitates the terminal to roam to the second AP, the terminal may acquire the network information sent by the second AP. After the at least one third AP transmits the network information to the terminal at the second power lower than the operating power, the terminal may receive the network information transmitted by the at least one third AP.

Taking the example that the terminal acquires the network information from the probe responses sent by the second AP and the third AP, after acquiring the probe responses sent by the second AP and the at least one third AP, the terminal may further measure the acquired probe responses to acquire the signal strength of each probe response. Since the second AP may send the probe response with the first power that is greater than the working power of the second AP, the signal strength of the probe response sent by the second AP is relatively high, and if the third AP sends the probe response with the second power that is less than the working power of the third AP, the signal strength of the probe response sent by the third AP is relatively low, so that the terminal may preferentially use the second AP as a target AP for roaming of the terminal, so as to expect that a wireless signal with relatively high signal strength can be acquired subsequently.

After the network information sent by the second AP and the at least one third AP is acquired, the terminal may further compare load information in each acquired network information, and preferentially use the AP with a smaller load as a target AP for terminal roaming. Since the second channel utilization rate in the second target network information sent by the third AP is higher than the actual channel utilization rate of the third AP and/or the number of the second access terminals is also higher than the actual number of the access terminals of the third AP, for the terminal, the load of the third AP is excessive, the network resource utilization rate is high, and if the terminal roams to the third AP, the terminal cannot acquire more network resources, and the terminal cannot use the third AP as the target AP for terminal roaming. And the first channel utilization rate in the first target network information sent by the second AP is lower than the actual channel utilization rate of the second AP and/or the number of the first access terminals is also lower than the actual number of the access terminals of the second AP, then, for the terminal, the load of the second AP is less, the network resource utilization rate is low, if the terminal roams to the second AP, more network resources can be obtained, and the terminal will preferentially use the second AP as the target AP for terminal roaming.

When the at least one third AP executes the suppression operation 3, the at least one third AP does not send its network information to the terminal, and the terminal can only acquire the network information sent by the second AP and does not acquire the network information of the at least one third AP, and at this time, the terminal may directly use the second AP as a target AP for terminal roaming.

When the terminal uses the second AP as a target AP for terminal roaming, the terminal may disconnect from the first AP and access to the second AP to complete roaming, that is, the terminal roams from the first AP to the second AP.

The method provided by the embodiment of the application instructs the second AP to execute the operation of facilitating the terminal to roam to the second AP by sending the roaming facilitating instruction to the second AP, and/or instructs the third AP to execute the operation of suppressing the terminal from roaming to the third AP by sending the roaming suppressing instruction to the third AP, so that when the terminal receives the roaming guidance, the second AP can be preferentially used as the target AP for the terminal to roam, thereby improving the probability that the terminal roams to the second AP and improving the accuracy of guiding the terminal to roam. In addition, the second AP is positioned in the moving direction of the terminal, so that the terminal does not need to frequently perform roaming actions, and the roaming workload of the terminal is reduced. In addition, the second AP can ensure that the network information of the second AP can be acquired when the terminal acquires the network information of the second AP in an active probing manner by executing the promotion operations 1 and 2; the second AP performs the promotion operation 3, which not only can prevent the network information from being sent to the terminal, but also facilitates the terminal to detect that the third AP has stronger signal strength; the second AP performs the facilitating operation 4, so that the terminal can consider the network condition of the second AP to be better based on the first target network information, so as to increase the probability that the second AP becomes a target AP for the terminal to roam, so as to facilitate the terminal to roam to the second AP; the second AP executes the suppression operation 5, so that the terminal can acquire the network information of the second AP within the retention time of the terminal in the channel of the second AP; the second AP can ensure that the network information of the second AP can be acquired when the terminal acquires the network information of the second AP in a passive listening manner by executing the suppression operation 6, so that the second AP can promote the terminal to roam to the second AP by executing at least one of the promotion operations 1 to 6. The third AP performs suppression operation 1, so that the terminal determines that the network strength of the third AP is low based on the probe response carrying the network information of the third AP; the third AP performs the suppression operation 2, so that the terminal considers that the load of the third AP is small and the network condition of the third AP is poor based on the second target network information; the third AP may avoid the terminal acquiring the network information of the third AP by performing the suppression operation 3, and thus, the third AP may suppress the terminal from roaming to the third AP by performing the suppression operation 1-2 or the suppression operation 3.

It should be noted that, in a possible implementation manner, the control node may also direct the terminal to roam not based on the acquisition behavior feature of the terminal (that is, the processes shown in steps 401 to 415), but the first AP directs the terminal to roam based on the acquisition behavior feature of the terminal, where the process that the first AP directs the terminal to roam based on the acquisition behavior feature of the terminal is the same as the process that the control node directs the terminal to roam based on the acquisition behavior feature of the terminal, and the difference is that: the first AP does not need to generate a roaming guide instruction and send a roaming guide message to the terminal based on the roaming guide instruction, and after the first AP sends a roaming promotion instruction to the second AP and sends a roaming inhibition instruction to at least one third AP, the first AP can directly send the roaming guide message to the terminal to guide the terminal to roam from the first AP to the second AP.

Fig. 5 is a schematic structural diagram of a terminal roaming guidance apparatus according to an embodiment of the present application, where the apparatus 500 includes:

a determining module 501, configured to determine a second AP and at least one third AP from multiple neighbor APs of a first access point AP accessed by a terminal;

a sending module 502, configured to send a roaming facilitation instruction to the second AP, where the roaming facilitation instruction is used to instruct the second AP to perform an operation that facilitates the terminal to roam to the second AP;

and/or the sending module 502 is further configured to send, to any third AP in the at least one third AP, a roaming suppression instruction to the third AP, where the roaming suppression instruction is used to instruct the third AP to perform an operation of suppressing the terminal from roaming to the third AP;

a guiding module 503, configured to guide the terminal to roam from the first AP to the second AP.

Optionally, the facilitating roaming of the terminal to the second AP comprises facilitating at least one of operations 1-6;

Optionally, the first target network information includes a first channel utilization and/or a first number of access terminals, where the first channel utilization is lower than an actual channel utilization of the second AP, and the first number of access terminals is lower than an actual number of access terminals of the second AP.

Optionally, the apparatus 500 further comprises:

an obtaining module, configured to obtain an obtaining behavior feature of the terminal, where the obtaining behavior feature includes an active identifier and/or a passive identifier, where the active identifier is used to instruct the terminal to obtain network information of an AP corresponding to at least one first channel by sending a probe request to the at least one first channel, the passive identifier is used to instruct at least one second channel to monitor network information sent to the terminal by the AP corresponding to the at least one second channel, and a channel of the second AP is any one of the at least one first channel and/or the at least one second channel;

the determining module 501 is further configured to determine, based on the active identity, that the operation of facilitating roaming of the terminal to the second AP is at least one of facilitating operation modes 1-5;

and/or the determining module 501 is further configured to determine, based on the passive identity, that the operation of facilitating roaming of the terminal to the second AP is facilitating at least one of operation modes 3-6.

Optionally, the behavior feature obtaining unit further includes the staying duration and a roaming duration of the terminal, where the roaming duration is a duration of the roaming guiding time period.

Optionally, the roaming facilitation instruction comprises a facilitation operation identifier, which is used to indicate facilitation of roaming of the terminal to the second AP.

Optionally, the operation of suppressing the terminal from roaming to the third AP includes at least one of the following suppression operations 1-2 or the following suppression operation 3;

suppression operation 3: and triggering not to send the network information of the third AP to the terminal in a roaming guide time period.

Optionally, the second target network information includes a second channel utilization and/or a second number of access terminals, where the second channel utilization is higher than an actual channel utilization of the third AP, and the second number of access terminals is higher than an actual number of access terminals of the third AP.

Optionally, the roaming suppression instruction includes a suppression operation identifier, where the suppression operation identifier is used to indicate that the terminal is suppressed from roaming to the third AP.

Optionally, the apparatus 500 is a control node or the first AP.

Fig. 6 is a schematic structural diagram of a terminal roaming guidance apparatus according to an embodiment of the present application, where the apparatus 600 is a second AP, and the apparatus 600 includes:

a receiving module 601, configured to receive a roaming facilitation instruction, where the roaming facilitation instruction is used to instruct the second AP to perform an operation that facilitates roaming of the terminal to the second AP;

an executing module 602, configured to execute an operation of facilitating roaming of the terminal to the second AP based on the roaming facilitating instruction.

Fig. 7 is a schematic structural diagram of a terminal roaming guidance apparatus according to an embodiment of the present application, where the apparatus 700 is a third AP, and the apparatus 700 includes:

a receiving module 701, configured to receive a roaming suppression instruction, where the roaming suppression instruction is used to instruct the third AP to perform an operation of suppressing the terminal from roaming to the third AP;

an executing module 702, configured to execute an operation of suppressing roaming of the terminal to the third AP based on the roaming suppressing instruction.

suppression operation 1: sending network information of a third AP to the terminal at a second power smaller than the working power of the third AP, wherein the network information of the third AP is used for indicating the network condition of the third AP;

All the above optional technical solutions may be combined arbitrarily to form the optional embodiments of the present disclosure, and are not described herein again.

It should be noted that: in the terminal roaming guiding apparatus provided in the foregoing embodiment, when guiding the terminal roaming, only the division of the above functional modules is taken as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the apparatus is divided into different functional modules, so as to complete all or part of the above described functions. In addition, the embodiments of the terminal roaming guiding method provided by the above embodiments belong to the same concept, and specific implementation processes thereof are described in the embodiments of the method for details, which are not described herein again.

It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.

The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A terminal roaming guiding method is characterized in that the method comprises the following steps:

acquiring an acquiring behavior characteristic of a terminal needing roaming, wherein the acquiring behavior characteristic is used for indicating a behavior characteristic of the terminal when the terminal acquires network information of an Access Point (AP);

determining a second AP from a plurality of neighbor APs of a first AP accessed by the terminal;

determining, based on the acquired behavior characteristics of the terminal, an operation to facilitate roaming of the terminal to the second AP;

sending a roaming facilitation instruction to the second AP, wherein the roaming facilitation instruction is used for instructing the second AP to execute the operation of facilitating the terminal to roam to the second AP; and/or the presence of a gas in the gas,

determining a third AP from the plurality of neighbor APs;

determining to suppress roaming of the terminal to the third AP based on the acquired behavior characteristics of the terminal;

sending a roaming suppression instruction to the third AP, wherein the roaming suppression instruction is used for instructing the third AP to execute the operation of suppressing the terminal from roaming to the third AP;

and guiding the terminal to roam from the first AP to the second AP.

2. The method of claim 1, wherein the facilitating roaming of the terminal to the second AP comprises facilitating at least one of operations 1-6;

3. The method of claim 2, wherein the first target network information comprises a first channel utilization and/or a first number of access terminals, wherein the first channel utilization is lower than an actual channel utilization for the second AP, and wherein the first number of access terminals is lower than an actual number of access terminals for the second AP.

4. The method according to claim 2, wherein the behavior obtaining characteristic includes an active identifier and/or a passive identifier, the active identifier is used to instruct the terminal to obtain the network information of the AP corresponding to the at least one first channel by sending a probe request to the at least one first channel, the passive identifier is used to instruct at least one second channel on which to listen to the network information sent to the terminal by the AP corresponding to the at least one second channel, and the channel of the second AP is any one of the at least one first channel and/or the at least one second channel;

the determining, based on the obtained behavior characteristics of the terminal, to facilitate roaming of the terminal to the second AP comprises:

5. The method according to claim 4, wherein the acquiring behavior characteristics further include the staying duration and a roaming duration of the terminal, and the roaming duration is a duration of the roaming guidance time period.

6. The method of any of claims 1-5, wherein the roaming facilitation instruction comprises a facilitation operation identifier indicating facilitation of operation of the terminal to roam to the second AP.

7. The method of claim 1, wherein the operation of suppressing the terminal from roaming to the third AP comprises at least one of the following suppression operations 1-2 or the following suppression operation 3;

8. The method of claim 7, wherein the second target network information comprises a second channel utilization and/or a second number of access terminals, wherein the second channel utilization is higher than an actual channel utilization of the third AP, and wherein the second number of access terminals is higher than an actual number of access terminals of the third AP.

9. The method according to any of claims 1-5, 7 and 8, wherein the roaming suppression instruction comprises a suppression operation flag indicating that the terminal is to be suppressed from roaming to the third AP.

10. The method according to any of claims 1-5, 7 and 8, wherein the method is performed by a control node or the first AP.

11. A terminal roaming guiding method is applied to a second Access Point (AP), and comprises the following steps:

receiving a roaming promotion instruction, wherein the roaming promotion instruction is used for instructing the second AP to execute an operation for promoting the terminal to roam to the second AP, and the operation is determined based on an acquisition behavior characteristic of the terminal, and the acquisition behavior characteristic is used for instructing the terminal to acquire a behavior characteristic of the AP when network information is acquired;

performing an operation of facilitating roaming of the terminal to the second AP based on the roaming facilitating instruction.

12. The method of claim 11, wherein facilitating roaming of the terminal to the second AP comprises facilitating at least one of operations 1-6;

13. The method of claim 11 or 12, wherein the roaming facilitation instruction comprises a facilitation operation identifier indicating facilitation of roaming of the terminal to the second AP.

14. A terminal roaming guiding method is applied to a third Access Point (AP), and comprises the following steps:

receiving a roaming suppression instruction, wherein the roaming suppression instruction is used for instructing the third AP to execute an operation of suppressing the terminal from roaming to the third AP, the operation is determined based on an acquisition behavior characteristic of the terminal, and the acquisition behavior characteristic is used for instructing the terminal to acquire a behavior characteristic of the AP when the network information is acquired;

15. The method of claim 14, wherein the operation of suppressing the terminal from roaming to the third AP comprises at least one of the following suppression operations 1-2 or the following suppression operation 3;

16. The method according to claim 14 or 15, wherein the roaming suppression instruction comprises a suppression operation identifier, and the suppression operation identifier is used to instruct suppression of roaming of the terminal to the third AP.

17. The terminal roaming guiding device is characterized by comprising an acquisition module, a determination module, a sending module and a guiding module:

the acquisition module is used for acquiring the acquisition behavior characteristics of the terminal needing roaming, and the acquisition behavior characteristics are used for indicating the behavior characteristics of the terminal when the terminal acquires the network information of the access point AP;

the determining module is used for determining a second AP from a plurality of neighbor APs of a first AP accessed by the terminal;

the determining module is further configured to determine, based on the obtained behavior characteristics of the terminal, an operation to facilitate roaming of the terminal to the second AP;

the sending module is configured to send a roaming facilitating instruction to the second AP, where the roaming facilitating instruction is used to instruct the second AP to perform an operation that facilitates the terminal to roam to the second AP; and/or the presence of a gas in the gas,

the determining module is configured to determine a third AP from the plurality of neighboring APs, and determine to suppress the terminal from roaming to the third AP based on the acquired behavior characteristics of the terminal;

the sending module is configured to send a roaming suppression instruction to the third AP, where the roaming suppression instruction is used to instruct the third AP to perform an operation of suppressing the terminal from roaming to the third AP;

the guiding module is configured to guide the terminal to roam from the first AP to the second AP.

18. The apparatus of claim 17, wherein the facilitating the terminal roaming to the second AP comprises facilitating at least one of operations 1-6;

19. The apparatus of claim 18, wherein the first target network information comprises a first channel utilization and/or a first number of access terminals, wherein the first channel utilization is lower than an actual channel utilization for the second AP, and wherein the first number of access terminals is lower than an actual number of access terminals for the second AP.

20. The apparatus according to claim 18, wherein the obtaining behavior feature includes an active identifier and/or a passive identifier, the active identifier is configured to instruct the terminal to obtain network information of an AP corresponding to at least one first channel by sending a probe request to the at least one first channel, the passive identifier is configured to instruct at least one second channel to listen to the network information sent to the terminal by the AP corresponding to the at least one second channel, and a channel of the second AP is any one of the at least one first channel and/or the at least one second channel;

the determining module is further configured to determine, based on the active identity, that the operation of facilitating roaming of the terminal to the second AP is at least one of facilitating operation modes 1-5;

and/or the determining module is further configured to determine, based on the passive identity, an operation that facilitates roaming of the terminal to the second AP as at least one of facilitating operation modes 3-6.

21. The apparatus of claim 20, wherein the acquiring behavior further comprises the staying time duration and a roaming duration of the terminal, and wherein the roaming duration is a duration of the roaming guidance time period.

22. The apparatus of any of claims 17-21, wherein the roaming facilitation instruction comprises a facilitation operation identifier indicating facilitation of operation of the terminal to roam to the second AP.

23. The apparatus of claim 17, wherein the operation of suppressing the terminal from roaming to the third AP comprises at least one of the following suppression operations 1-2 or the following suppression operation 3;

24. The apparatus of claim 23, wherein the second target network information comprises a second channel utilization and/or a second number of access terminals, wherein the second channel utilization is higher than an actual channel utilization for the third AP, and wherein the second number of access terminals is higher than an actual number of access terminals for the third AP.

25. The apparatus according to any of claims 17-21, 23 and 24, wherein the roaming suppression instruction comprises a suppression operation flag indicating that the terminal is to be suppressed from roaming to the third AP.

26. The apparatus according to any of claims 17-21, 23 and 24, wherein the apparatus is a control node or the first AP.

27. A terminal roaming guidance apparatus, wherein the apparatus is a second access point AP, the apparatus comprising:

a receiving module, configured to receive a roaming promotion instruction, where the roaming promotion instruction is used to instruct the second AP to perform an operation of promoting the terminal to roam to the second AP, where the operation is determined based on an acquisition behavior feature of the terminal, and the acquisition behavior feature is used to instruct the terminal to acquire a behavior feature of the AP when the terminal acquires network information of the AP;

an executing module, configured to execute, based on the roaming facilitating instruction, an operation of facilitating roaming of the terminal to the second AP.

28. The apparatus of claim 27, wherein the operation facilitating roaming of the terminal to the second AP comprises at least one of facilitating operations 1-6;

29. The apparatus of claim 27 or 28, wherein the roaming facilitation instruction comprises a facilitation operation identifier indicating facilitation of roaming of the terminal to the second AP.

30. A terminal roaming guidance apparatus, wherein the apparatus is a third access point AP, the apparatus comprising:

a receiving module, configured to receive a roaming suppression instruction, where the roaming suppression instruction is used to instruct the third AP to perform an operation of suppressing roaming of the terminal to the third AP, where the operation is determined based on an acquisition behavior feature of the terminal, and the acquisition behavior feature is used to instruct the terminal to acquire a behavior feature of the AP when network information is acquired;

and the execution module is used for executing the operation of restraining the terminal from roaming to the third AP based on the roaming restraining instruction.

31. The apparatus of claim 30, wherein the operation of suppressing the terminal from roaming to the third AP comprises at least one of the following suppression operations 1-2 or the following suppression operation 3;

32. The apparatus according to claim 30 or 31, wherein the roaming suppression instruction comprises a suppression operation identifier, and the suppression operation identifier is used to instruct suppression of roaming of the terminal to the third AP.

33. A control device, characterized in that the control device comprises a processor and a memory, wherein at least one instruction is stored in the memory, and the instruction is loaded and executed by the processor to implement the operations performed by the terminal roaming guidance method according to any one of claims 1 to 10.

34. A network device, comprising a processor and a memory, wherein the memory stores at least one instruction, and the instruction is loaded and executed by the processor to implement the operation performed by the terminal roaming guidance method according to any one of claims 1 to 16.

35. A computer-readable storage medium, wherein at least one instruction is stored in the storage medium, and the instruction is loaded and executed by a processor to implement the operations performed by the terminal roaming guidance method according to any one of claims 1 to 16.