A METHOD AND APPARATUS FOR MEASURING CHANNEL INFORMATION AND FEEDBACK IN A COMMUNICATION SYSTEM USING BEAMFORMING

摘要

The present invention provides a method for letting a terminal feedback channel information in a communication system using beamforming, which comprises the steps of: determining an optimal reception beam based on strength of received reference signals with respect to each of all the transmission beams of a base station for a first cycle through a first frequency chain; and determining an optimal transmission beam among all the transmission beams based on the strength of the reference signals received via the optimal reception beam for a second cycle through a second frequency chain, and feeding back the channel information, including information on the reference signals received via the optimal transmission beam and the optimal reception beam, to the base station.