APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING MULTIPLE-ANTENNA NETWORKS

摘要

The present invention relates to an apparatus and a method for transmitting and receiving data in a multiple antenna system of a closed loop method based on a codebook. A reception method in the multiple antenna system based on the codebook according to an embodiment of the present invention comprises the steps of estimating a magnetic channel and an interference channel; determining a codebook index using the magnetic channel, the Hermitian of the magnetic channel, and the interference channel; and giving feedback on the codebook index to a transmitter. According to an embodiment of the present invention, a multiple transmission and reception antenna system removes interference transmitted to other cells and maximizes the gain of the magnetic signal when the number of terminal reception antennas is more than the number of reception streams, and designs a low complexity codebook having better performances than a grassmannian codebook in the environment.