Patent ID: 8855085

Claim:
A wireless local area network handover method based on fuzzy rules, wherein the method comprises: S 1 : a mobile station receives probe frames sent in predefined time interval from a current associated access point and an adjacent access point during a preset time period, then the mobile station obtains and stores at least one signal strength of the current associated access point and at least one signal strength of the adjacent access point; S 2 : the mobile station performs fuzzy processing of the at least one signal strength of the current associated access point, the at least one signal strength of the adjacent access point, a change rate of signal strength of the current associated access point during the preset time period, a change rate of signal strength of the adjacent access point during the preset time period, respectively via fuzzy control method, and obtains fuzzy data that characterizes levels of the signal strength and levels of the change rate of signal strength; S 3 : the mobile station performs fuzzy reasoning taking the fuzzy data as input variables according to an organized collection of fuzzy rules, obtains reasoning outputs that contain handover modes of the mobile station based on the fuzzy reasoning, and determines a target access point according to at least one of the reasoning outputs, wherein the reasoning outputs are designated as current status, normal handover, and abnormal handover; S 4 : the mobile station authenticates with the target access point, based on at least one of the handover modes contained in the reasoning outputs; S 5 : the mobile station sends a re-association request frame to the target access point after the mobile station has authenticated with the target access point, wherein the handover method is completed after the mobile station receives a re-association response frame from the target access point.