BASE STATION, MOBILE STATION AND METHOD THEREOF

摘要

The embodiment of the invention discloses a base station, a mobile station and a method thereof. The communication method for a mobile station which is served by a base station having at least one transmission point each equipped with multiple transmit antennas includes determining a best subset of transmit antennas for each transmission point which is selected, based on channel gains, among the multiple transmit antennas of the transmission point; and reporting to the base station quantized channel state information CSI for the transmit antennas in the best subset. The embodiments of the invention can reduce the feedback overhead.