BASEBAND PROCESSING DEVICE FOR WIRELESS COMMUNICATION SYSTEM AND WIRELESS COMMUNICATION SYSTEM

摘要

Embodiments of the present invention provide a baseband processing apparatus in a radio communication system, a radio communication system, and a baseband processing method. The apparatus includes a first unit and a second unit that implement different baseband processing functions, where the second unit is configured to generate a precoding matrix of a downlink CoMP user, generate precoding control information according to the precoding matrix, and send the precoding control information to the first unit; and the first unit is configured to receive the precoding control information sent by the second unit, and perform downlink joint baseband processing on downlink CoMP user data in downlink user data according to the precoding control information, so as to generate jointly sent baseband data for radio sending; and the first unit is further configured to send uplink CoMP user data in uplink user data to the second unit; and the second unit is further configured to complete uplink joint baseband processing on the uplink CoMP user data sent by the first unit. The technical solutions can reduce a transmission bandwidth between baseband processing units and obtain a system capacity gain at the same time.