Patent ID: 8270349

Claim:
A wireless communication system comprising: a plurality of base stations configured to set up a wireless communication with a mobile station; and a management server which manages the plurality of base stations, wherein each of the base stations comprises: a carrier sensing unit which performs carrier sensing for one or more other base stations; a list generating unit which generates a monitor list by listing a difference in frame timing between the base station and each of the one or more other base stations for which the carrier sensing is performed; and a base station transmitter which transmits the monitor list to the management server, and wherein the management server comprises: a management receiver which receives the monitor lists from the plurality of base stations; a calculation unit which calculates a shift amount by which the frame timing of a target base station is to be shifted, based on the monitor lists, and calculates differences in frame timing among the plurality of base stations when the calculated shift amount is reflected to the target base station; and a shift instructing unit which instructs to shift the frame timing of the target base station by the calculated shift amount if the differences in frame timing among the plurality of base stations when reflecting the calculated shift amount is improved from those before reflecting the calculated shift amount.