Patent ID: 6405021
Filing Date: 2002-06-11
Classification: H04W,Y02D

Abstract:
A method of controlling transmission power in a cellular system having a plurality of cells, a plurality of base stations disposed respectively in the cells, and a mobile station disposed in one of the cells and having a link established with one or more of said base stations for communicating therewith with a transmission power based on a first control command transmitted from the base station, comprising the steps of:determining transmission power of the base stations based on a second control command transmitted from the mobile station; measuring reception quality in the base stations of a signal transmitted from the mobile station; comparing the measured reception quality with target reception quality; determining an increment for the transmission power of the base stations which has been determined based on said second control command, based on a compared result; incrementing the transmission power of the base stations by the determined increment; and transmitting the first control command for controlling transmission power of the mobile station from the base stations to the mobile station, with the incremented transmission power.