Method and device for controlling wireless access point

Abstract

Embodiments relate to a method for controlling a wireless access point (3), executed by a control device (2), comprising: receiving (S1), from a target wireless access point (3), management data representative of, for respective wireless end points (4) associated with the target wireless access point (3), a received signal strength and a number of retransmissions, and IDs associated with neighboring wireless access points (3) detected by the target wireless access point (3), identifying (S2) at least one wireless end point (4) affected by a hidden node problem in function of the correspondingreceived signal strength and number of retransmissions, identifying (S3) at least one potential hidden node in function of a channel used and a received signal strength of the detected neighboring wireless access points (3), identifying (S4) a hidden node wireless access point (3) by comparing the wireless access points (3) detected by the wireless end point (4) identified as affected by a hiddennode problem and the identified potential hidden node.

Description

technical field [0001] The present invention relates to the field of telecommunications. In particular, the present invention relates to methods and devices for controlling wireless access points, especially considering the hidden node problem. Background technique [0002] One of the most common problems with Wi-Fi networks is related to interference. Dense deployment of Wi-Fi access points (APs) results in overlapping coverage, which can negatively impact end-user performance when adjacent APs operate on the same or adjacent non-orthogonal (distance less than 5) WLAN channels influences. [0003] Two situations should be clearly distinguished: [0004] (1) Exposed node scenario, where neighboring APs (operating on the same or adjacent channels) sense each other and conform their transmissions to the CSMA protocol. In this case there is no direct interference between them (no packet collision). Instead, common resources (frequency) are shared, which results in lower ac...

AI Technical Summary

Problems solved by technology

[0010] - Hidden node removal driven by Physical Carrier Sense (PCS) threshold adjustment, which results in reduced coverage (reduced maximum link length) and potential exposed node issues

[0011] However, the techniques described above are tested and validated at the simulation level with a number of assumptions and simplifications, and thus may be difficult to implement

Also, no feasible way to overcome the hidden node problem has been found

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