Patent ID: 7848286

Claim:
A channel selection method of a wireless local area network (WLAN) station, the method comprising: capturing, for a determined measuring time, packets from WLAN service channels which are provided by at least one access point (AP) and calculating, from the captured packets, busy factors indicative of a load on each WLAN service channel to confer a priority between the WLAN service channels, and selecting a WLAN service channel according to the conferred priority, and wherein selecting the WLAN service channel according to the conferred priority comprises: sorting the captured packets by WLAN service channel; checking, by WLAN service channel, destination address fields and source address fields in the captured packets to calculate a number of stations held by the respective WLAN service channels; calculating the busy factors by WLAN service channel from a mean value of an interval ratio which is a channel-busy indicator within each clear channel assessment (CCA) interval in a set monitoring period; and conferring the priority between the WLAN service channels according to the calculated busy factors by WLAN service channel in such a way that, if a difference between busy factors is less than a reference value, a priority is conferred upon a WLAN service channel holding less stations by comparing the numbers of stations held by the respective WLAN service channels.