Patent ID: 7010322

Claim:
A method for controlling power of common power control channels from a plurality of base stations in order to control transmission power of a mobile station in a mobile communication system including the mobile station and the base stations constituting an active set, comprising the steps of: receiving, by the mobile station, pilot signals from the base stations and selecting a base station that transmitted a pilot signal having a highest power level; transmitting to the selected base station, by the mobile station, information indicating a channel condition between the selected base station and the mobile station; determining a power control bit according to signal strengths received from the base stations, and transmitting the determined power control bit to the base stations; controlling, by the selected base station, the power of the common power control channel transmitted to the mobile station based on the channel condition; and controlling, by the non-selected base stations, the power of the common power control channels transmitted from non-selected base stations to the mobile station based on the received power control bits.