Apparatus and method for calibrating channel in radio communication system using multiple antennas

摘要: Provided is an apparatus and method for calibrating a channel in radio communication system using multiple antennas. A base station the includes estimator calculator. The receives UL sounding signal to estimate first CSI weighted with DL second CSI. calculator calculates calibration values respective antenna pairs Information necessary transmitted received analog format. Accordingly, it possible minimize waste of resource time calibration.