METHOD AND APPARATUS FOR EFFICIENT FEEDBACK IN A WIRELESS COMMUNICATION SYSTEM SUPPORTING MULTIPLE ANTENNA

摘要

PURPOSE: An efficient feedback method and an apparatus there in a multiple antenna support wireless communication system are provided to supply increased system capacity by support of MIMO(Multi Input Multi Output) transmission through transmission antennas. CONSTITUTION: A terminal generates CSI(Channel State Information) information about DL(DownLink) transmission(S3310). The terminal generates a broadband second PMI(Precoding Matrix Indicator) and a broadband CQI(Channel Quality Indicator)(SS330). The CSI is generated based on the omitted first PMI. The CSI is generated based on the transmitted first PMI(S3360).