METHOD AND APPARATUS FOR PREDICTING RADIO CHANNEL IN WIRELESS COMMUNICATION SYSTEM

摘要

A method for predicting a wireless channel in a wireless communication system, and an apparatus thereof are provided to accurately calculate the beamforming or precoding weight of a transmitter through the prediction of a downlink channel using the Kalman filter in a TDD system. A method for predicting a wireless channel in a wireless communication system comprises the following steps of estimating the current uplink channel; predicting the current uplink channel from an estimated predetermined previous uplink; and predicting the next downlink channel from the uplink channel prediction. The process of predicting the current uplink channel from the estimated previous uplink is implemented by the following steps. The predetermined previous uplink channel predictive value is filtered to predict the current uplink channel. A parameter for correcting the predicted uplink channel is calculated. The uplink channel value is corrected by using the parameter.