Patent ID: 7873014
Filing Date: 2011-01-18
Classification: H04B,H04W

Abstract:
1. A handover method for controlling a communication between a mobile station and at least one base station, in a wireless communication system including the mobile station and a plurality of base stations, said method comprising: an act of measuring qualities of signals transmitted from at least some of said plurality of base stations, the measured qualities of signals including a measured quality of a signal received from a certain base station; an act of identifying the certain base station as an addition candidate based on the measured quality of the signal received from the certain base station exceeding an addition threshold; after the act of identifying the certain base station as an addition candidate, an act of detecting that the measured quality of the signal received from the addition candidate has further exceeded an active threshold which is greater than the addition threshold, wherein the active threshold is determined in accordance with a quality of a signal transmitted from one or more active base stations; in response to the act of detecting, an act of notifying one or more of the plurality of base stations of information about the addition candidate; and an act of performing a handover process based on the information in the notification; wherein the notification includes the measured quality.