Apparatus and method for interference cancellation in multi-antenna system

The present invention is a multi-cell, and relates to a multi-antenna system, apparatus and method for canceling interference in a multi-user environment, the inter-cell interference for at least one reception end the channel state information and each receiving end of the of the which is located in the service area to eliminate interference and inter-cell interference between the received stages included in the channel identification unit, and a scheduler for using the channel state information of the receiving end selecting at least one reception end of providing services, the same cell to confirm the information transmitter configured to transmit the interference canceller, and the pre-processed transmission signal to line processes the transmission signal using the channel state information and the inter-cell interference information of the receiving end to provide the service to the receiving stages selected for providing the services to including the interference and inter-cell interference between the user contained in the same cell There is an advantage that can increase the dwell reception. A multi-antenna system in a multi-user environment, block diagonalization (Block Diagonalization), pre-coding (Precoding), inter-cell interference removed