Apparatus and method for efficient interference cancellation in cooperate relay networks in the mimo cellular system

The invention in a mobile communication system a plurality of transmission antennas and reception antennas, in particular, the case of using the relay network according to the supports the high speed packet data with a device for removing the interference signals transmitted from the multiple transmit antennas and to provide a method. The present invention is distinguished from the data signal and the noise to be using spreading variables set the processes and the aligned signal for aligning the directly transmitted signal and the relay transmission signals despread for each transmission antenna, and transmitting by the transmission antennas process with the step of the above from the recovered data signal to regenerate the transmitted signal transmitted through the transmission antennas to determine the data component of the interference signal component and to remove the interference signal component from the transmission signal transmitted by the transmission antennas It characterized in that it comprises the process. SM (Spatial Multiplexing), beamforming (Beamforming), a relay station, the relay network, signal interference removal, MMSE