Patent ID: 6665287
Filing Date: 2003-12-16
Classification: H04B,H04W

Abstract:
A radio mobile station apparatus comprising:time alignment information generating means for generating first time alignment information using a signal transmitted from a main base station in current communication with said mobile station and a signal transmitted from a sub base station in next communication with said mobile station, said first time alignment information for being transmitted from said mobile station to said main base station; decoding means for decoding another signal transmitted from said main base station and a time aligned signal transmitted from said sub base station; control means for, when received power of data from said main base station is higher than received power of data from said sub station, carrying out time alignment for said main base station; and hand-over control means for, when received power of data from said sub base station becomes higher than received power of data from said main station, performing a hand-over from said main base station to said sub base station after performing time alignment for said sub base station.