CN113115298A

CN113115298A - Method, apparatus and storage medium for triggering roaming of wireless client

Info

Publication number: CN113115298A
Application number: CN202110287833.0A
Authority: CN
Inventors: 田勇; 孙汉标; 刘力铭
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2021-03-17
Filing date: 2021-03-17
Publication date: 2021-07-13

Abstract

The present disclosure relates to a method, apparatus, and storage medium for triggering roaming of a wireless client. The method for triggering the roaming of the wireless client is applied to a wireless network access point, the wireless network access point is associated with the wireless client, and the method for triggering the roaming of the wireless client comprises the following steps: and determining the uplink signal intensity of the wireless client and the downlink signal intensity of the associated wireless network access point currently associated with the wireless client. And triggering the wireless network access point to send a roaming request to the wireless client based on the uplink signal strength and the downlink signal strength, wherein the roaming request is used for indicating the wireless client to roam to a target wireless network access point. By the method for triggering roaming of the wireless client, the target wireless network access point for guiding the wireless client to perform roaming triggering can be determined based on the uplink signal strength and the downlink signal strength, so that the roaming success rate is improved, and the roaming experience effect is enhanced.

Description

Method, apparatus and storage medium for triggering roaming of wireless client

Technical Field

The present disclosure relates to the field of wireless communications, and in particular, to a method, an apparatus, and a storage medium for triggering roaming of a wireless client.

Background

For large dwelling or multi-story buildings, a single router cannot cover every corner, and a solution for expanding signal coverage is urgently needed. Before the Mesh technology, schemes such as power line modems, wireless relays, AC + AP and the like are adopted to expand the signal coverage, but the defects of poor network speed experience, complex configuration, high wiring difficulty and the like still exist, Mesh networking has the advantages of synchronous configuration, network self-repair, seamless roaming and the like and is rapidly and widely applied, and various manufacturers or WIFI alliances actively promote the development of the Mesh technology, such as a high-pass WIFI-SON scheme and an Easy Mesh scheme of the WIFI alliance, and Easy Mesh can realize cross-platform Mesh communication deployment.

In the related art, when guiding roaming, factors such as signal strength, signal quality, bit error rate, number of missed beacon frames, and the like need to be considered, which results in poor roaming experience of users.

Disclosure of Invention

To overcome the problems in the related art, the present disclosure provides a method, an apparatus, and a storage medium for triggering roaming of a wireless client.

According to a first aspect of the embodiments of the present disclosure, there is provided a method for triggering roaming of a wireless client, which is applied to a wireless network access point, where the wireless network access point has associated therewith a wireless client, and the method for triggering roaming of the wireless client includes: and determining the uplink signal strength of the wireless client and the downlink signal strength of the associated wireless network access point currently associated with the wireless client. And triggering the wireless network access point to send a roaming request to the wireless client based on the uplink signal strength and the downlink signal strength, wherein the roaming request is used for indicating the wireless client to roam to a target wireless network access point.

In an embodiment, the triggering the wireless client to roam to a target wireless network access point based on the uplink signal strength and the downlink signal strength includes: and triggering the wireless client to roam to a target wireless network access point in response to the fact that the downlink signal strength is larger than or equal to a downlink signal strength threshold value for triggering roaming and the uplink signal strength is smaller than an uplink signal strength threshold value for triggering roaming.

In another embodiment, the triggering the wireless client to roam to a target wireless network access point based on the uplink signal strength and the downlink signal strength includes: and triggering the wireless client to roam to a target wireless network access point in response to the fact that the uplink signal strength of the wireless client is smaller than a measurement threshold for triggering wireless measurement and the downlink signal strength is smaller than a downlink signal strength threshold for triggering roaming.

In another embodiment, before triggering the wireless client to roam to the target wireless network access point based on the uplink signal strength and the downlink signal strength, the method for triggering the wireless client to roam further includes: and determining that the uplink signal strength of the wireless client is smaller than a measurement threshold, triggering the wireless client to perform wireless measurement, and acquiring wireless measurement information fed back by the wireless client. And determining that a target wireless network access point with downlink signal strength higher than that of the associated wireless network access point exists based on the wireless measurement information.

In yet another embodiment, the wireless measurement information includes: a plurality of candidate wireless network access points and downlink signal intensity corresponding to each of the candidate wireless network access points. The determining that there is a target wireless network access point with a downlink signal strength higher than that of the associated wireless network access point based on the wireless measurement information includes: and determining the target wireless network access point with the downlink signal intensity higher than that of the associated wireless network access point based on the downlink signal intensity corresponding to each candidate wireless network access point and the downlink signal intensity of the associated wireless network access point. And the intensity difference between the downlink signal intensity of the target wireless network access point and the downlink signal intensity of the associated wireless network access point is greater than an intensity difference threshold value.

According to a second aspect of the embodiments of the present disclosure, there is provided a method for triggering roaming of a wireless client, which is applied to a wireless client associated with a wireless network access point, the method for triggering roaming of the wireless client including: and acquiring a roaming request sent by an associated wireless network access point currently associated with the wireless client, wherein the roaming request is used for indicating the wireless client to roam to a target wireless network access point, and the associated wireless network access point determines and triggers based on the uplink signal strength of the wireless client and the downlink signal strength of the associated wireless network access point. And roaming to the target wireless network access point based on the roaming request.

According to a third aspect of the embodiments of the present disclosure, there is provided an apparatus for triggering roaming of a wireless client, which is applied to a wireless network access point, where the wireless network access point has a wireless client associated therewith, and the apparatus for triggering roaming of the wireless client includes: a determining unit, configured to determine an uplink signal strength of the wireless client and a downlink signal strength of an associated wireless network access point currently associated with the wireless client. And the triggering unit is used for triggering the wireless network access point to send a roaming request to the wireless client based on the uplink signal strength and the downlink signal strength, wherein the roaming request is used for indicating the wireless client to roam to a target wireless network access point.

In an embodiment, the triggering unit triggers the wireless client to roam to a target wireless network access point based on the uplink signal strength and the downlink signal strength in the following manner: and triggering the wireless client to roam to a target wireless network access point in response to the fact that the downlink signal strength is larger than or equal to a downlink signal strength threshold value for triggering roaming and the uplink signal strength is smaller than an uplink signal strength threshold value for triggering roaming.

In another embodiment, the triggering unit triggers the wireless client to roam to a target wireless network access point based on the uplink signal strength and the downlink signal strength in the following manner: and triggering the wireless client to roam to a target wireless network access point in response to the fact that the uplink signal strength of the wireless client is smaller than a measurement threshold for triggering wireless measurement and the downlink signal strength is smaller than a downlink signal strength threshold for triggering roaming.

In yet another embodiment, before triggering the wireless client to roam to a target wireless network access point based on the uplink signal strength and the downlink signal strength, the triggering unit is further configured to determine that the uplink signal strength of the wireless client is smaller than a measurement threshold, trigger the wireless client to perform wireless measurement, and acquire wireless measurement information fed back by the wireless client. The determining unit is further configured to determine, based on the wireless measurement information, that there is a target wireless network access point having a downlink signal strength higher than that of the associated wireless network access point.

In yet another embodiment, the wireless measurement information includes: a plurality of candidate wireless network access points and downlink signal intensity corresponding to each of the candidate wireless network access points. Before determining that there is a target wireless network access point having a downlink signal strength higher than that of the associated wireless network access point, the determining unit is further configured to determine the downlink signal strength of the associated wireless network access point. The triggering unit determines that a target wireless network access point with downlink signal strength higher than that of the associated wireless network access point exists based on the wireless measurement information as follows: and determining that a target wireless network access point with downlink signal intensity higher than that of the associated wireless network access point exists based on the downlink signal intensity corresponding to each candidate wireless network access point and the downlink signal intensity of the associated wireless network access point. And the intensity difference between the downlink signal intensity of the target wireless network access point and the downlink signal intensity of the associated wireless network access point is greater than an intensity difference threshold value.

According to a fourth aspect of the embodiments of the present disclosure, there is provided an apparatus for triggering roaming of a wireless client, which is applied to a wireless client associated with a wireless network access point, the apparatus for triggering roaming of the wireless client comprising: an obtaining unit, configured to obtain a roaming request sent by an associated wireless network access point currently associated with the wireless client, where the roaming request is used to instruct the wireless client to roam to a target wireless network access point, and the associated wireless network access point determines and triggers based on an uplink signal strength of the wireless client and a downlink signal strength of the associated wireless network access point. And the roaming unit is used for roaming to the target wireless network access point based on the roaming request.

According to a fifth aspect of the embodiments of the present disclosure, there is provided an apparatus for triggering roaming of a wireless client, including: a memory to store instructions; and a processor for invoking the instructions stored in the memory to perform any of the above methods for triggering roaming of a wireless client.

According to a sixth aspect of the embodiments of the present disclosure, there is provided a computer-readable storage medium storing instructions that, when executed by a processor, perform any one of the above methods for triggering roaming of a wireless client.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: by the method for triggering roaming of the wireless client, the target wireless network access point for guiding the wireless client to perform roaming triggering can be determined based on the uplink signal strength and the downlink signal strength, so that the roaming success rate is improved, and the roaming experience effect is enhanced.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic diagram illustrating a network topology in accordance with an exemplary embodiment.

Fig. 2 is a flow chart illustrating a method of triggering roaming of a wireless client according to an example embodiment.

Fig. 3 is a flow chart illustrating another method of triggering roaming of a wireless client, according to an example embodiment.

Fig. 4 is a flow chart illustrating yet another method of triggering roaming of a wireless client, according to an example embodiment.

Fig. 5 is a flow chart illustrating yet another method of triggering roaming of a wireless client, according to an example embodiment.

Fig. 6 is a diagram illustrating interaction of management frames in a Mesh network according to an example embodiment.

Fig. 7 is a block diagram illustrating an apparatus for triggering roaming of a wireless client, in accordance with an example embodiment.

Fig. 8 is a block diagram illustrating another apparatus for triggering roaming of a wireless client, in accordance with an example embodiment.

Fig. 9 is a block diagram illustrating a wireless client device according to an example embodiment.

Fig. 10 is a block diagram illustrating an apparatus for triggering roaming of a wireless client, in accordance with an example embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

The Mesh network is a wireless Mesh network and has the characteristics of rapid deployment, easy installation, strong expandability, high reliability and the like. An application scenario of the Mesh network may be as shown in fig. 1. FIG. 1 is a schematic diagram of a network topology, shown in accordance with an exemplary embodiment. In the Mesh network, based on the internet 100, the seamless roaming of the Wireless client 105 is realized by a plurality of AP (Wireless Access Point) terminals and the Wireless client 105 together. The AP may include, but is not limited to, the following wireless network access points: wireless network access point AP1101, wireless network access point AP2102, wireless network access point AP3103, and wireless network access point AP 4104.

In the related art, when the wireless client 105 performs physical space movement within the coverage area of the Mesh network, factors such as but not limited to signal strength, signal quality, bit error rate, and number of missed beacon frames need to be considered to determine whether to guide the wireless client to perform roaming, which results in poor user roaming experience.

In the Mesh network, the AP can monitor the uplink Signal Strength rssi (Received Signal Strength Indication) of the associated wireless client, and the uplink Signal Strength is positively correlated with the transmission power of the wireless client. The wireless client can monitor the downlink signal strength rcpi (Received Channel Power parameter) of the associated AP, and the downlink signal strength is positively correlated with the transmission Power of the AP.

In view of this, the present disclosure provides a method for triggering roaming of a wireless client applied to a wireless network access point, which can determine a target wireless network access point where an associated wireless network access point guides roaming based on uplink signal strength of the wireless client and downlink signal strength of the associated wireless network access point currently associated with the wireless client, and further trigger the wireless client to roam to the target wireless network access point, thereby improving a roaming success rate and a roaming experience effect. The target wireless network access point may be characterized as a wireless network access point in the Mesh network other than the associated wireless network access point.

Fig. 2 is a flow chart illustrating a method of triggering roaming of a wireless client according to an example embodiment. As shown in fig. 2, the method of triggering roaming of a wireless client includes the following steps S11 and S12.

In step S11, the uplink signal strength of the wireless client and the downlink signal strength of the associated wireless network access point with which the wireless client is currently associated are determined.

In the embodiment of the present disclosure, through the uplink signal strength, the strong and weak states of the wireless client transmitting the wireless signal can be determined. The strength state of the wireless signal transmitted by the associated wireless network access point currently associated with the wireless client can be determined through the downlink signal strength.

When determining whether to trigger the wireless client to roam, if only the uplink signal strength or the downlink signal strength is used as a trigger factor for triggering the wireless client to roam, the roaming is easy to be abnormal. The roaming anomaly may include: wireless communication anomalies or situations where a wireless client refuses to direct roaming. For example: when the stronger one of the uplink signal strength and the downlink signal strength is used as a trigger factor for roaming, the associated wireless network access point is likely to not guide the wireless client to roam, so that the signal strength of the other party is weaker, the wireless communication state cannot be stabilized, and normal wireless communication is affected. For another example: if the uplink signal strength is used as a trigger factor for roaming, when the uplink signal strength of the wireless client is too strong, the wireless client easily rejects guidance of the associated wireless network access point, resulting in roaming failure.

Therefore, in order to avoid the above situation, before triggering the wireless client to roam to the target wireless network access point, the uplink signal strength of the wireless client and the downlink signal strength of the associated wireless network access point are both determined, so that when the wireless client is triggered to roam, wireless communication can be ensured, meanwhile, the possibility that the wireless client receives guided roaming is improved, and further, the roaming experience effect and the roaming success rate are improved.

In step S12, the wireless network access point is triggered to send a roaming request to the wireless client based on the uplink signal strength and the downlink signal strength, where the roaming request is used to instruct the wireless client to roam to the target wireless network access point.

The roaming request includes basic information such as BSSID of the target wireless network access point.

In embodiments of the present disclosure, the target wireless network access point may be characterized as: the wireless client needs a new wireless network access point that is directed to roam by the associated wireless network access point. Based on the uplink signal strength and the downlink signal strength, the associated wireless network access point can determine the possibility of abnormal roaming in the process of triggering and guiding the wireless client to roam, so that the roaming success rate and the roaming experience effect are improved.

By the embodiment, the uplink signal strength and the downlink signal strength are used as the trigger factors for the wireless network access point to determine the wireless client to roam to the target wireless network access point, so that the signal strength difference between the wireless client and the currently associated wireless network access point is balanced, and the roaming success rate and the roaming experience effect are improved in the process of determining the wireless client to roam to the target wireless network access point.

In one embodiment, the triggering of the wireless client to roam to the target wireless network access point may be determined based on a relationship between the downlink signal strength and the downlink signal strength threshold and the uplink signal strength threshold. The downlink signal strength threshold may be characterized as a lowest downlink signal roaming threshold that can trigger the associated wireless network access point to direct roaming. If the downlink signal strength is greater than or equal to the downlink signal strength threshold, the representation of the current downlink signal strength can trigger the wireless client to roam. If the downlink signal strength is smaller than the downlink signal strength threshold, the current downlink signal strength is represented to trigger the wireless client to roam. The uplink signal strength threshold may be characterized as a lowest uplink signal roaming threshold at which a wireless client may refuse to be directed to roam by an associated wireless network access point. If the uplink signal strength is greater than or equal to the uplink signal strength threshold, the wireless client is rejected from being guided for roaming. If the uplink signal strength is less than the uplink signal strength threshold, then the wireless client is characterized as being capable of accepting guided roaming.

In an example, in response to determining that the downlink signal strength is greater than or equal to a downlink signal strength threshold that triggers roaming, it may be determined that the current downlink signal strength may trigger an associated wireless network access point to guide the wireless client to roam, and then, according to a magnitude relationship between the uplink signal strength and the uplink signal strength threshold, it may be determined that the wireless client may refuse to be guided to roam. If the uplink signal strength is smaller than the uplink signal strength threshold value for triggering roaming, the wireless client can be guided to roam, and then the associated wireless network access point is triggered to guide the wireless client to roam to the target wireless network access point, so that the roaming success rate is improved.

In another example, in response to determining that the downlink signal strength is less than the downlink signal strength threshold that triggers roaming, it is characterized that the current downlink signal strength requires triggering of the wireless client for roaming, and then the likelihood that the wireless client will reject guided roaming is determined according to the relationship between the uplink signal strength and the uplink signal strength threshold. When the uplink signal strength responding to the wireless client is smaller than the measurement threshold value triggering wireless measurement, the wireless client is characterized to be capable of receiving guided roaming, and then the associated wireless network access point is triggered to guide the wireless client to roam to the target wireless network access point, so that the roaming success rate is improved, and meanwhile, the stability of wireless communication is kept.

Fig. 3 is a flow chart illustrating yet another method of triggering roaming of a wireless client, according to an example embodiment. As shown in fig. 3, the method of triggering roaming of a wireless client includes the following steps S21 and S24.

In step S21, the uplink signal strength of the wireless client and the downlink signal strength of the associated wireless network access point with which the wireless client is currently associated are determined.

In step S22, it is determined that the uplink signal strength of the wireless client is smaller than the measurement threshold, the wireless client is triggered to perform wireless measurement, and wireless measurement information fed back by the wireless client is acquired.

In the embodiment of the present disclosure, the measurement threshold is an uplink signal strength threshold for triggering the wireless client to perform wireless measurement by associating with the wireless network access point. If the associated wireless network access point determines that the uplink signal strength of the wireless client is smaller than the measurement threshold value by monitoring the uplink signal strength of the wireless client, the transmission power of the wireless client is small or the physical distance between the wireless client and the associated wireless network access point is too long, which may affect normal wireless communication, and it needs to be further determined whether the wireless client needs to be guided to roam, so as to ensure normal wireless communication. If the uplink signal strength of the wireless client is determined to be greater than or equal to the measurement threshold, the association between the wireless client and the associated wireless network access point is represented to be normal, and the wireless client does not need to be guided to roam without the associated wireless network access point. In one example, the associated wireless network access point may periodically monitor the uplink signal strength of the wireless client according to a specified time interval, so as to save power consumption while determining the association state between the wireless client and the associated wireless network access point.

And after determining that the uplink signal strength of the line client is smaller than the measurement threshold value, the associated wireless network access point triggers the wireless client to perform wireless measurement. And the wireless client responds to the triggering wireless measurement, executes the wireless measurement and sends the returned wireless measurement information to the associated wireless network access point. The wireless measurement information may include a plurality of wireless network access points existing around the wireless client and downlink signal strength of each wireless network access point, and the associated wireless network access point may determine a target wireless network access point that may need to guide the wireless client to roam according to the acquired wireless measurement information fed back by the wireless client.

In one example, if the wireless client refuses to perform the wireless measurement or the measurement fails, the associated wireless network access point continues to monitor the uplink signal strength of its associated wireless client.

In step S23, it is determined that there is a target wireless network access point having a downlink signal strength higher than that of the associated wireless network access point based on the wireless measurement information.

In the embodiment of the present disclosure, based on the downlink signal strength of each wireless network access point in the wireless measurement information, a magnitude relationship between the downlink signal strength of each wireless network access point and the downlink signal strength of the associated wireless network access point may be determined. The target wireless network access point may be: a wireless network access point having a downlink signal strength that is higher than a downlink signal strength of an associated wireless network access point. The downlink signal intensity is higher than that of the associated wireless network access point, so that the wireless network access point is more suitable for roaming with a wireless client compared with the associated wireless network access point, and the stability of wireless communication is improved. If it is determined that a wireless network access point with downlink signal strength higher than that of the associated wireless network access point exists in the wireless measurement information, it can be determined that a target wireless network access point which can be guided to roam exists around the wireless client.

In an example, if a wireless network access point which does not have the downlink signal strength of the associated wireless network access point is determined based on the downlink signal strength of each wireless network access point in the wireless measurement information, the associated wireless network access point continues to monitor the uplink signal strength of the associated wireless client.

In step S24, the wireless network access point is triggered to send a roaming request to the wireless client based on the uplink signal strength and the downlink signal strength, where the roaming request is used to instruct the wireless client to roam to the target wireless network access point.

In an embodiment, if it is determined that a plurality of wireless network access points with downlink signal strength higher than that of the associated wireless network access point exist in the wireless measurement information, the wireless network access point with downlink signal strength higher than that of the associated wireless network access point may be used as the candidate wireless network access point. That is, the wireless measurement information may include a plurality of candidate wireless network access points and downlink signal strengths corresponding to the candidate wireless network access points. When the target wireless network access point is selected, the target wireless network access point can be screened from a plurality of candidate wireless network access points based on the designated downlink signal intensity threshold value.

In one example, the downlink signal strength corresponding to each candidate wireless network access point is compared with a specified downlink signal strength threshold, and if one downlink signal strength greater than or equal to the specified downlink signal strength threshold exists in the downlink signal strengths corresponding to each candidate wireless network access point, the candidate wireless network access point corresponding to the downlink signal strength is the target wireless network access point. For example: the downlink signal strength of the specified downlink signal strength threshold is-65, and the downlink signal strength corresponding to each candidate wireless network access point is respectively as follows: -60, -70, -69, -74, -80. Comparing-60, -70, -69, -74 and-80 with-65 respectively, and if the downlink signal strength with the downlink signal strength of-60 is greater than-65, taking the candidate wireless network access point corresponding to-60 as the target wireless network access point.

In another example, if a plurality of downlink signal strengths greater than or equal to the specified downlink signal strength threshold exist in the downlink signal strengths corresponding to the candidate wireless network access points, the final target wireless network access point is determined based on the priority order among the following factors and the position of each candidate wireless network access point in the following factors. Several factors include: the number of hops of each candidate wireless network access point, the theoretical maximum rate of connection between the wireless client and the candidate wireless network access point, and the uplink signal strength monitored by each candidate wireless network access point. When the ranking is performed based on the hop frequency of each candidate wireless network access point, the lower the hop frequency is, the higher the corresponding ranking position is. For example: the sequencing position of the candidate wireless network access point with the hopping frequency of 0 is larger than that of the candidate wireless network access point with the hopping frequency of 1; the candidate wireless network access point with hop count of 1 is greater than the candidate wireless network access point with hop count of 2. When the ranking is carried out based on the theoretical maximum rate of the connection between the wireless client and the candidate wireless network access point, the faster the theoretical maximum rate of the connection between the wireless client and the candidate wireless network access point is, the higher the corresponding ranking position is. When sequencing is carried out based on the uplink signal intensity monitored by each candidate wireless network access point, the higher the uplink signal intensity of the candidate wireless network access point is, the more front the corresponding sequencing position is. And determining the final target wireless network access point based on the sequencing position of each candidate wireless network access point in each factor and the priority of each factor.

In another example, if the downlink signal strength corresponding to each candidate wireless network access point is less than the downlink signal strength of the designated downlink signal strength threshold, the target wireless network access point does not exist in each candidate wireless network access point, and the candidate wireless network access point needs to be determined again or roaming is terminated.

In another example, for convenience of description, a wireless network access point whose strength difference between the downlink signal strength and the downlink signal strength of the associated wireless network access point is greater than a strength difference threshold is simply referred to as a first wireless network access point. If a plurality of first wireless network access points exist at the same time, one first wireless network access point can be selected as a target wireless network access point so as to accelerate the process of guiding the wireless client to roam.

In another embodiment, after the wireless client is triggered to roam to the target wireless network access point, if the wireless client accepts that the wireless client is guided to the target wireless network access point by the associated wireless network access point to roam, the associated wireless network access point sends the associated Basic information such as a Basic Service Set (BBS) identity identification number (ID) of the target wireless network access point to the wireless client, so that the wireless client can perform authentication, association and handshake with the target wireless network access point to establish communication connection. And if the wireless client is refused to be guided to the target wireless network access point by the associated wireless network access point for roaming, the associated wireless network access point continues to monitor the uplink signal intensity of the associated wireless client.

In one implementation scenario, the determination process to trigger roaming of a wireless client may be as shown in fig. 4. Fig. 4 is a flow chart illustrating yet another method of triggering roaming of a wireless client, according to an example embodiment.

The wireless client establishes roaming relation after being connected to a wireless network access point in the Mesh wireless network, and the wireless network access point roaming with the wireless client is called as an associated wireless network access point. And the associated wireless network access point continuously and periodically monitors the uplink signal strength of the wireless client according to the specified time interval. And if the uplink signal intensity is smaller than the measurement threshold, triggering the wireless client to perform wireless measurement, and acquiring wireless measurement information fed back by the wireless client. And if the uplink signal strength is greater than or equal to the measurement threshold, the associated wireless network access point continues to monitor the uplink signal strength of the associated wireless client.

And if the wireless client side is successful in measurement and feeds back the obtained wireless measurement information to the associated wireless network access point, determining whether the target wireless network access point exists in the wireless measurement information. And if the wireless client fails to measure or the obtained wireless measurement information cannot be fed back to the associated wireless network access point, the associated wireless network access point continues to monitor the uplink signal strength of the associated wireless client.

And if the target wireless network access point exists in the wireless measurement information, determining whether the downlink signal strength of the associated wireless network access point is smaller than a downlink signal strength threshold value. And if the target wireless network access point does not exist in the wireless measurement information, the associated wireless network access point continues to monitor the uplink signal intensity of the associated wireless client.

And if the downlink signal intensity of the associated wireless network access point is smaller than the downlink signal intensity threshold value, triggering the associated wireless network access point to guide the wireless client to roam to the target wireless network access point. And if the downlink signal strength of the associated wireless network access point is greater than or equal to the downlink signal strength threshold, determining whether the uplink signal strength of the wireless client is less than the uplink signal strength threshold. And if the uplink signal strength of the wireless client is smaller than the uplink signal strength threshold, triggering the associated wireless network access point to guide the wireless client to roam to the target wireless network access point. And if the uplink signal strength of the wireless client is greater than or equal to the uplink signal strength threshold, the associated wireless network access point continues to monitor the uplink signal strength of the associated wireless client.

And if the wireless client determines to accept the guidance of the associated wireless network access point for roaming based on the trigger, and the wireless client roams with the target wireless network access point, the associated wireless network guides the wireless client to roam to the target wireless network access point. And if the wireless client refuses the guidance of the associated wireless network access point based on the trigger, the associated wireless network access point continues to monitor the uplink signal intensity of the associated wireless client.

Based on the same concept, the embodiment of the present disclosure also provides another method for triggering roaming of a wireless client. The method for triggering the roaming of the wireless client is applied to the wireless client, and the wireless client is associated with a wireless network access point.

Fig. 5 is a flow chart illustrating yet another method of triggering roaming of a wireless client, according to an example embodiment. As shown in fig. 5, the method of triggering roaming of a wireless client includes the following steps S31 and S32.

In step S31, a roaming request sent by the associated wireless network access point with which the wireless client is currently associated is obtained.

In the embodiment of the present disclosure, the roaming request is used to instruct the wireless client to roam to the target wireless network access point, and is determined and triggered by the associated wireless network access point based on the uplink signal strength of the wireless client and the downlink signal strength of the associated wireless network access point. Through the roaming request, the fact that a target wireless network access point which is suitable for the associated wireless network access point to guide the wireless client to roam exists around the wireless client can be determined. And after determining that the associated wireless network access point capable of guiding the wireless client to roam is arranged, the associated wireless network access point currently associated with the wireless client sends a roaming request to the wireless client to request the wireless client to accept the guidance. And the wireless client acquires the roaming request according to the roaming request sent by the associated wireless network access point to obtain the roaming request.

In step S32, the target wireless network access point is roamed to based on the roaming request.

In the embodiment of the disclosure, the wireless client triggers a roaming request guided to the target wireless network access point to respond based on the associated wireless network access point, and if the wireless client accepts the guidance of the associated wireless network access point, the wireless client performs authentication, association and handshake with the target wireless network access point under the guidance of the associated wireless network access point to establish communication connection, so that the wireless client can roam with the target wireless network after the associated wireless network access point completes the guidance. The associated wireless network access point may adopt any one of the above methods for triggering roaming of the wireless client, and determine a target wireless network access point for guiding the wireless client to roam. And the wireless client roams to the determined target wireless network access point based on the communication connection between the target wireless network access points.

In an embodiment, the wireless client responds to the request for triggering the wireless measurement by the wireless network access point, and performs wireless measurement on the surrounding wireless network access points to acquire wireless measurement information. The wireless measurement information is used for associating the wireless network access point to determine a target wireless network access point for guiding the wireless client to roam. By acquiring the wireless measurement information, the associated wireless network access point can determine whether a target wireless network access point which can be guided to roam exists in the periphery of the wireless client. The wireless measurement information may include a plurality of wireless network access points existing around the wireless client and downlink signal strength of each wireless network access point.

In an implementation scenario, the interaction process for directing the wireless client by the associated wireless network access point with which the wireless client is currently associated may be as shown in fig. 6. Fig. 6 is a schematic diagram illustrating interaction of management frames in a Messh network according to an exemplary embodiment. For ease of description, only the wireless client, the associated wireless network access point associated with the wireless client, and the target wireless network access point are illustrated in fig. 6, but are not limited in practical application to the number of wireless network access points and the number of wireless clients.

Based on the periodic monitoring of the associated wireless network access point, after determining that the uplink signal strength is smaller than the Measurement threshold, the associated wireless network access point initiates a wireless Measurement Request (Radio Measurement Request frame) to the wireless client, and triggers the wireless client to perform wireless Measurement. The wireless client responds to the measurement Request sent by the associated wireless network access point through a Probe Request frame (Probe Request), and broadcasts the measurement Request to a plurality of wireless network access points in the Mesh network to perform wireless measurement. The wireless client obtains wireless Measurement information according to the Response of each wireless network access point through a Probe Response frame (Probe Response frame), and feeds back the wireless Measurement information to the associated wireless network access point through a wireless Measurement Report frame (Radio Measurement Report frame). After the associated wireless network access point determines the target wireless network access point according to the acquired wireless measurement information, a BBS wireless network Management Request frame (BSS transmission Management Request frame) (which is equivalent to the roaming Request) is sent to the wireless client, and the wireless client is requested to be guided to roam to the target wireless network access point. Wherein, the BSS transmission Management Request frame includes the BSSID of the target wireless network access point and other relevant basic information. The wireless client responds through a BBS wireless network Management Response frame (BSS Transmission Management Response frame) to reply whether the associated wireless network access point receives the guidance of the associated wireless network access point. If the wireless client accepts the guidance of the associated wireless network access point, the wireless client requests Authentication from the target wireless network access point by sending an Authentication Request frame (Authentication Request frame). The target wireless network access point responds to the wireless client through an Authentication Response frame (Authentication Response frame) to perform Authentication. The wireless client requests authentication from the target wireless network access point by sending an association Request frame (a response Request frame). The target wireless network access point responds to the wireless client through an association Response frame (a association Response frame) to perform association. And the wireless client and the target wireless network access point perform handshaking based on the 4key frame to establish communication connection. After the wireless client and the target wireless network access point finish roaming, the roaming is disconnected with the associated wireless network access point through a disconnection frame (disconnection frame).

Based on the same conception, the embodiment of the disclosure also provides a device for triggering the roaming of the wireless client. The device for triggering the roaming of the wireless client is applied to a wireless network access point, and the wireless network access point is associated with the wireless client.

It is understood that the device for triggering roaming of a wireless client provided by the embodiments of the present disclosure includes a hardware structure and/or a software module for performing the above functions. The disclosed embodiments can be implemented in hardware or a combination of hardware and computer software, in combination with the exemplary elements and algorithm steps disclosed in the disclosed embodiments. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.

Fig. 7 is a block diagram illustrating an apparatus for triggering roaming of a wireless client, in accordance with an example embodiment. Referring to fig. 7, the apparatus 200 for triggering roaming of a wireless client includes a determining unit 201 and a triggering unit 202.

A determining unit 201, configured to determine an uplink signal strength of the wireless client and a downlink signal strength of an associated wireless network access point currently associated with the wireless client.

A triggering unit 202, configured to trigger the wireless network access point to send a roaming request to the wireless client based on the uplink signal strength and the downlink signal strength, where the roaming request is used to instruct the wireless client to roam to a target wireless network access point.

In an embodiment, the triggering unit 202 triggers the wireless client to roam to the target wireless network access point based on the uplink signal strength and the downlink signal strength by the following method: and triggering the wireless client to roam to the target wireless network access point in response to the fact that the downlink signal strength is larger than or equal to the downlink signal strength threshold value for triggering roaming and the uplink signal strength is smaller than the uplink signal strength threshold value for triggering roaming.

In another embodiment, the triggering unit 202 triggers the wireless client to roam to the target wireless network access point based on the uplink signal strength and the downlink signal strength by the following method: and triggering the wireless client to roam to a target wireless network access point in response to the fact that the uplink signal strength of the wireless client is smaller than a measurement threshold value for triggering wireless measurement and the downlink signal strength is smaller than a downlink signal strength threshold value for triggering roaming.

In yet another embodiment, before triggering the wireless client to roam to the target wireless network access point based on the uplink signal strength and the downlink signal strength, the triggering unit 202 is further configured to determine that the uplink signal strength of the wireless client is smaller than the measurement threshold, trigger the wireless client to perform wireless measurement, and acquire wireless measurement information fed back by the wireless client. The determining unit 201 is further configured to determine, based on the wireless measurement information, that there is a target wireless network access point having a downlink signal strength higher than that of the associated wireless network access point.

In yet another embodiment, the wireless measurement information includes: a plurality of candidate wireless network access points and downlink signal intensity corresponding to each candidate wireless network access point. The triggering unit 202 determines that there is a target wireless network access point having a downlink signal strength higher than that of the associated wireless network access point, based on the wireless measurement information, as follows: and determining the target wireless network access point with the downlink signal intensity higher than that of the associated wireless network access point based on the downlink signal intensity corresponding to each candidate wireless network access point and the downlink signal intensity of the associated wireless network access point. And the intensity difference between the downlink signal intensity of the target wireless network access point and the downlink signal intensity of the associated wireless network access point is greater than the intensity difference threshold value.

Based on the same concept, the embodiment of the present disclosure also provides another apparatus for triggering roaming of a wireless client. The device for triggering the roaming of the wireless client is applied to the wireless client, and the wireless client is associated with a wireless network access point.

Fig. 8 is a block diagram illustrating another apparatus for triggering roaming of a wireless client, in accordance with an example embodiment. Referring to fig. 8, the apparatus 300 for triggering roaming of a wireless client includes an acquiring unit 301 and a roaming unit 302.

An obtaining unit 301, configured to obtain a roaming request sent by an associated wireless network access point currently associated with a wireless client, where the roaming request is used to instruct the wireless client to roam to a target wireless network access point, and the associated wireless network access point determines and triggers based on an uplink signal strength of the wireless client and a downlink signal strength of the associated wireless network access point.

A roaming unit 302, configured to roam to the target wireless network access point based on the roaming request.

With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.

Fig. 9 is a block diagram illustrating a wireless client device according to an example embodiment. For example, the wireless client device 400 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.

Referring to fig. 9, wireless client device 400 may include one or more of the following components: a processing component 402, a memory 404, a power component 406, a multimedia component 408, an audio component 410, an input/output (I/O) interface 412, a sensor component 414, and a communication component 416.

Processing component 402 generally controls the overall operation of wireless client device 400, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 402 may include one or more processors 420 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 402 can include one or more modules that facilitate interaction between the processing component 402 and other components. For example, the processing component 402 can include a multimedia module to facilitate interaction between the multimedia component 408 and the processing component 402.

Memory 404 is configured to store various types of data to support operation at wireless client device 400. Examples of such data include instructions for any application or method operating on wireless client device 400, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 404 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

Power components 406 provide power to the various components of wireless client device 400. Power components 406 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for wireless client device 400.

The multimedia component 408 includes a screen that provides an output interface between the wireless client device 400 and the user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 408 includes a front facing camera and/or a rear facing camera. The front-facing camera and/or the back-facing camera may receive external multimedia data when the wireless client device 400 is in an operational mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

The audio component 410 is configured to output and/or input audio signals. For example, audio component 410 includes a Microphone (MIC) configured to receive external audio signals when wireless client device 400 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 404 or transmitted via the communication component 416. In some embodiments, audio component 410 also includes a speaker for outputting audio signals.

The I/O interface 412 provides an interface between the processing component 402 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

The sensor component 414 includes one or more sensors for providing various aspects of state assessment for the wireless client device 400. For example, sensor component 414 may detect an open/closed status of wireless client device 400, the relative positioning of components, such as a display and keypad of wireless client device 400, sensor component 414 may also detect a change in the position of wireless client device 400 or a component of wireless client device 400, the presence or absence of user contact with wireless client device 400, the orientation or acceleration/deceleration of wireless client device 400, and a change in the temperature of wireless client device 400. The sensor assembly 414 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 414 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 414 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 416 is configured to facilitate wired or wireless communication between the wireless client device 400 and other devices. Wireless client device 400 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 416 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 416 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the wireless client device 400 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors, or other electronic components for performing the above-described methods.

In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as memory 404 comprising instructions, executable by processor 420 of wireless client device 400 to perform any of the above methods of triggering roaming of a wireless client is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.

Fig. 10 is a block diagram illustrating an apparatus for triggering roaming of a wireless client, in accordance with an example embodiment. For example, the apparatus 500 for triggering roaming of wireless clients may be provided as a server. Referring to fig. 10, an apparatus 500 for triggering roaming of a wireless client includes a processing component 522 that further includes one or more processors and memory resources, represented by memory 532, for storing instructions, such as applications, executable by the processing component 522. The application programs stored in memory 532 may include one or more modules that each correspond to a set of instructions. Further, processing component 522 is configured to execute instructions to perform any of the above-described methods for triggering roaming of a wireless client

The apparatus 500 for triggering wireless client roaming may further include a power supply component 526 configured to perform power management of the apparatus 500 for triggering wireless client roaming, a wired or wireless network interface 550 configured to connect the apparatus 500 for triggering wireless client roaming to a network, and an input/output (I/O) interface 558. The means for triggering roaming of a wireless client 500 may operate based on an operating system stored in memory 532, such as Windows Server, Mac OS XTM, UnixTM, Linux, FreeBSDTM, or the like.

It is further understood that the use of "a plurality" in this disclosure means two or more, as other terms are analogous. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. The singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It will be further understood that the terms "first," "second," and the like are used to describe various information and that such information should not be limited by these terms. These terms are only used to distinguish one type of information from another and do not denote a particular order or importance. Indeed, the terms "first," "second," and the like are fully interchangeable. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure.

It will be further understood that, unless otherwise specified, "connected" includes direct connections between the two without the presence of other elements, as well as indirect connections between the two with the presence of other elements.

It is further to be understood that while operations are depicted in the drawings in a particular order, this is not to be understood as requiring that such operations be performed in the particular order shown or in serial order, or that all illustrated operations be performed, to achieve desirable results. In certain environments, multitasking and parallel processing may be advantageous.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A method for triggering roaming of a wireless client is applied to a wireless network access point, the wireless network access point is associated with the wireless client, and the method for triggering roaming of the wireless client comprises the following steps:

determining the uplink signal intensity of the wireless client and the downlink signal intensity of an associated wireless network access point currently associated with the wireless client;

and triggering the wireless network access point to send a roaming request to the wireless client based on the uplink signal strength and the downlink signal strength, wherein the roaming request is used for indicating the wireless client to roam to a target wireless network access point.

2. The method of claim 1, wherein the triggering the roaming of the wireless client to a target wireless network access point based on the uplink signal strength and the downlink signal strength comprises:

and triggering the wireless client to roam to a target wireless network access point in response to the fact that the downlink signal strength is larger than or equal to a downlink signal strength threshold value for triggering roaming and the uplink signal strength is smaller than an uplink signal strength threshold value for triggering roaming.

3. The method of claim 1, wherein the triggering the roaming of the wireless client to a target wireless network access point based on the uplink signal strength and the downlink signal strength comprises:

and triggering the wireless client to roam to a target wireless network access point in response to the fact that the uplink signal strength of the wireless client is smaller than a measurement threshold for triggering wireless measurement and the downlink signal strength is smaller than a downlink signal strength threshold for triggering roaming.

4. The method of any of claims 1-3, wherein before triggering roaming of the wireless client to a target wireless network access point based on the uplink signal strength and the downlink signal strength, the method of triggering roaming of the wireless client further comprises:

determining that the uplink signal intensity of the wireless client is smaller than a measurement threshold, triggering the wireless client to perform wireless measurement, and acquiring wireless measurement information fed back by the wireless client;

and determining that a target wireless network access point with downlink signal strength higher than that of the associated wireless network access point exists based on the wireless measurement information.

5. The method of triggering roaming of a wireless client according to claim 4,

the wireless measurement information includes: a plurality of candidate wireless network access points and downlink signal intensity corresponding to each candidate wireless network access point;

before determining that there is a target wireless network access point with a downlink signal strength higher than that of the associated wireless network access point, the method for triggering roaming of the wireless client further includes:

determining the downlink signal strength of the associated wireless network access point;

the determining that there is a target wireless network access point with a downlink signal strength higher than that of the associated wireless network access point based on the wireless measurement information includes:

determining a target wireless network access point with downlink signal intensity higher than that of the associated wireless network access point based on the downlink signal intensity corresponding to each candidate wireless network access point and the downlink signal intensity of the associated wireless network access point;

and the intensity difference between the downlink signal intensity of the target wireless network access point and the downlink signal intensity of the associated wireless network access point is greater than an intensity difference threshold value.

6. A method for triggering roaming of a wireless client, the method being applied to the wireless client, wherein the wireless client is associated with a wireless network access point, and the method for triggering roaming of the wireless client comprises the following steps:

acquiring a roaming request sent by an associated wireless network access point currently associated with the wireless client, wherein the roaming request is used for indicating the wireless client to roam to a target wireless network access point, and the associated wireless network access point determines and triggers based on the uplink signal strength of the wireless client and the downlink signal strength of the associated wireless network access point;

and roaming to the target wireless network access point based on the roaming request.

7. An apparatus for triggering roaming of a wireless client, the apparatus being applied to a wireless network access point, the wireless network access point having a wireless client associated therewith, the apparatus for triggering roaming of the wireless client comprising:

a determining unit, configured to determine an uplink signal strength of the wireless client and a downlink signal strength of an associated wireless network access point currently associated with the wireless client;

and the triggering unit is used for triggering the wireless network access point to send a roaming request to the wireless client based on the uplink signal strength and the downlink signal strength, wherein the roaming request is used for indicating the wireless client to roam to a target wireless network access point.

8. The apparatus of claim 7, wherein the triggering unit triggers the roaming of the wireless client to a target wireless network access point based on the uplink signal strength and the downlink signal strength in the following manner:

9. The apparatus of claim 8, wherein the triggering unit triggers the wireless client to roam to a target wireless network access point based on the uplink signal strength and the downlink signal strength in the following manner:

10. The apparatus of any of claims 7-9, wherein before triggering the roaming of the wireless client to a target wireless network access point based on the uplink signal strength and the downlink signal strength,

the triggering unit is further configured to determine that the uplink signal strength of the wireless client is smaller than a measurement threshold, trigger the wireless client to perform wireless measurement, and acquire wireless measurement information fed back by the wireless client;

the determining unit is further configured to determine, based on the wireless measurement information, that there is a target wireless network access point having a downlink signal strength higher than that of the associated wireless network access point.

11. The apparatus for triggering roaming of a wireless client according to claim 10,

before determining that there is a target wireless network access point having a downlink signal strength higher than that of the associated wireless network access point, the determining unit is further configured to determine the downlink signal strength of the associated wireless network access point;

the triggering unit determines that a target wireless network access point with downlink signal strength higher than that of the associated wireless network access point exists based on the wireless measurement information by adopting the following steps:

12. An apparatus for triggering roaming of a wireless client, the apparatus being applied to a wireless client associated with a wireless network access point, the apparatus for triggering roaming of a wireless client comprising:

an obtaining unit, configured to obtain a roaming request sent by an associated wireless network access point currently associated with the wireless client, where the roaming request is used to instruct the wireless client to roam to a target wireless network access point, and the associated wireless network access point determines and triggers based on an uplink signal strength of the wireless client and a downlink signal strength of the associated wireless network access point;

and the roaming unit is used for roaming to the target wireless network access point based on the roaming request.

13. A triggering wireless client roaming device, the triggering wireless client roaming device comprising:

a memory to store instructions; and

a processor for invoking the memory-stored instructions to perform the triggered wireless client roaming method of any one of claims 1-5 or the triggered wireless client roaming method of claim 6.

14. A computer-readable storage medium having stored thereon instructions which, when executed by a processor, perform the method of triggering wireless client roaming according to any one of claims 1-5 or the method of triggering wireless client roaming according to claim 6.