METHOD FOR FEEDING BACK CHANNEL STATE INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR

摘要

A method for feeding back Channel State Information (CSI) using a common subband at a user equipment in a wireless communication system is disclosed. The method includes transmitting first CSI to at least one base station at a first transmission time point according to a first CSI feedback configuration, and transmitting second CSI to the at least one base station at a second transmission time point according to a second CSI feedback configuration, wherein the second CSI is generated based on the common subband when the second transmission time point is within a prescribed SubFrame Threshold (SFT) from the first transmission time point.