Patent ID: 7603135
Filing Date: 2009-10-13
Classification: H04W

Abstract:
1. A mobile station for use in a code-division multiple-access communications system, said mobile station comprising: a detection unit configured to receive a signal transmitted from a base station, and to detect an error of a downlink in the signal, said signal including a transmission-power control information for controlling transmission power of the mobile station; an extraction unit configured to extract the transmission-power control information from the signal; and a mobile-station transmission-power control unit configured to input a detection result of the error from said detection unit and the transmission-power control information from said extraction unit, and to control a transmission power of a radio transmission unit of the mobile station in accordance with the detection result of the error, referring to the transmission-power control information, a history of an uplink transmission power for immediately preceding m frames (m being a positive integer) and a history of the transmission-power control information for immediately preceding n frames (n being a positive integer).