METHOD AND APPARATUS OF CODEBOOK TRANSFORMATION FOR INTERFERENCE MITIGATION IN CODEBOOK-BASED MIMO PRECODING

摘要

PURPOSE: A method for modifying a code book of a multi input/output preprocessing based on a code book which plans to relax the interference is provided to prevent funcation deterioration in a closed loop MIMO transmission based on code book considering neighboring communication device interference through demodulating of a code book. CONSTITUTION: A second receiver presumes a channel to first transmitter by usage of a reference signal(S102). If the first transmitter presumes a channel, the first transmitter calculated a reception correlation matrix through the estimated channel(S103).