A method and a wireless communication control apparatus for handing off a
mobile station in a mobile communication system including at least two
wireless base stations. A handoff threshold which is set in the mobile
station is varied according to quality of a wireless link between the
mobile station and a first wireless base station which currently controls
the mobile station. Then, the processing for handing off the mobile
station from the first wireless base station to a second wireless base
station is performed based on the handoff threshold.