Patent ID: 8009580

Claim:
A method for selecting antennas in an OFDMA wireless network including a base station and a mobile station having a available antennas, comprising: measuring, by the mobile station, channel states of a downlink channel using a downlink subframe received in the mobile station from the base station using different subsets of the available antennas, in which each subset has an associated index, and each antenna has an associated identity; selecting, by the mobile station, a subset of receive antennas for downlink reception based on the channel states between the base station and the different subsets of antennas at the mobile station; measuring, by the base station, a channel state of an uplink channel using an uplink subframe received in the base station from the mobile station; and selecting, by the base station, a subset of transmit antennas at the mobile station for uplink transmission based on the channel states between the base station and different subset of antennas at the mobile station.