Apparatus and method for communicating high-speed data in communication system using multiple txs and rxs

The present invention to provide a mobile communication system including a MIMO, apparatus and method for transmitting and receiving high-speed packet data without any loss in the path to provide. The present invention determines the set presence or absence of a relay transmission system by using the base station the feedback information identifying a correlation between the number of the reception antennas of the transmission antennas in order to support high-speed data to the mobile terminal, and the relay transmission scheme depending on the setting fails to confirm that the number of the transmission antennas meet the service quality can be greater than the movement of the reception antenna terminal not meet the service quality of the mobile station the mobile station and adjacent relay stations from the path loss to a minimum in the RS through it characterized by transmitting the high speed data. SM (Spatial Multiplexing), beamforming (Beamforming), a relay station, the relay network