Patent ID: 7366538
Filing Date: 2008-04-29
Classification: H04B,H04W

Abstract:
1. A mobile station having radio channels being set between the mobile station and a plurality of base stations, and performing communication with the plurality of base stations in a communication condition such that one base station selected among the plurality of base stations transmits a user data signal which transmission power is controlled, and that the plurality of base stations including the selected base station transmit signals including a control data signal which transmission power is controlled in a similar way as the user data signal, said mobile station comprising: a measurement section measuring quality of the control data signal transmitted with the transmission power controlled; a selector selecting the base station transmitting the user data signal, based on the quality of the control data signal from each base station measured in the measurement section; and a transmitter transmitting identification information for identifying the base station selected by the selector, to the plurality of base stations, wherein the user data signal is transmitted from the base station only when the identification information represents the base station of interest.