System for communicating channel quality information

The mobile subscriber station in a communication system, channel quality information: when transmitting the (CQI Channel Quality Information), the mobile subscriber station receives the information on the modulation to be applied to the CQI and the CQI channel allocation information from the base station. Here, the CQI channel signal is generated on the basis of the CQI and the modulation information corresponding to the measured channel status, the CQI channel signal is transmitted to the base station via the allocated CQI channel. Receive antennas, the modulation vector sequence set, CQI channel, the modulation vector, CQI reception performance