WIRELESS LAN WITH CHANNEL SWAPPING BETWEEN DFS APS

摘要

PURPOSE: A wireless LAN(Local Area Network) with a channel swapping between DFS(Dynamic Frequency Selection) APs(Access Points) is provided to enhances a DFS algorithm used in the wireless LAN by adding a channel swapping mechanism. CONSTITUTION: A swap requesting AP(AP1) selects an optimum channel by mutually swapping channels with another AP using a channel swapping mechanism. The AP1 is operated on the first channel(C1) for calculating and storing a swap specific channel quality parameter(ssCSIQ) for every responding access point(AP2) operated on the second channel(C2). The swapping specific channel quality parameter(ssCSIQ) is calculated under the assumption that the AP2 and the AP1 have already swapped channels. The swap specific channel quality parameter(ssCSIQ) is used in the channel swapping mechanism.