Patent ID: 6466791
Filing Date: 2002-10-15
Classification: H04W

Abstract:
A transmission power control system for controlling, with a mobile station and two or more base stations simultaneously connectable to said mobile station, base stations and transmission power from said base stations to said mobile station, comprising:a control means for determining on a base station to be handed off based on information about a transmission strength of a pilot signal which each of said base stations transmits to said mobile station and information about a strength of said pilot signal received at said mobile station which is transmitted by said base station to control transmission power before and after handoff, wherein said control means comprises connecting information holding means for grasping a base station being currently connected with said mobile station and storing the base station as connection information, control desired value obtaining means for obtaining information of a desired value of transmission power of said base station being currently connected, pilot signal obtaining means for obtaining transmission strength information of current said pilot signal of a base station which can be handed off by said mobile station, and simultaneous communication means for simultaneously transmitting handoff information which is information about handoff between said mobile station and each said base station to said currently connected base station and said base station which can be handed off.