Patent ID: 7693536

Claim:
A method for a communication network in which a mobile station transmits and receives wireless signals to and from a plurality of base stations, the method comprising: detecting movement of the mobile station; determining whether a reception quality of a wireless signal transmitted from a base station among the plurality of base stations in communication with the mobile station provides a best reception quality compared to reception qualities of other base stations in communication with the mobile station; and determining, based on the detected movement and the determination of the best reception quality, whether to modify a transmit power control of the base station, wherein the transmit power control instructs an increase or decrease of transmit power of the base station in accordance with a control step value, said control step value being a value of incremental change of transmit power that is increased or decreased when the transmit power control is modified, wherein the control step value of the transmit power control is modified when both the detection of movement indicates the mobile station is not approaching the base station and the determination of the best reception quality indicates the reception quality of the wireless signal transmitted from the base station does not provide the best reception quality.