APPARATUS AND METHOD FOR SURPPORTING MULTIPLE-INPUT MULTIPLE-OUTPUT AND BEAMFORMING SIMULTANEOUSLY IN WIRELESS COMMUNICATION SYSTEM

摘要

PURPOSE: A device and a method for simultaneously supporting multiple-input multiple-output and beamforming in a wireless communication system are provided to transmit a data stream using an improved STC BF technique. CONSTITUTION: A scheduler(100) maps a plurality of data streams on a plurality of transmitting antennas. CDD(Cyclic Delay Diversity) phase sequence multipliers(118-1~118-4) multiply a CDD phase sequence by the second data stream among the data streams. Beamforming coefficient multipliers(124-1~124-4) multiply a beamforming coefficient on the data streams.