Coordinated multipoint control aparatus and method

摘要

A communication control server of the present invention comprises: a network interface (412); a memory unit (612) in which a cluster information table (613) and a channel state information table (614) are stored; a channel state information recovery unit (608) acquiring a feedback message of a user equipment (100, 200) within a cluster (301) from a base station (1 to 6) via a network interface (412), wherein the cluster information table (613) holds a joint codebook (704) shared by the base stations (1 to 6) within the cluster, wherein the joint codebook (704) holds an identifier for determining channel state information (803) and a distribution of the channel state information (803), and wherein the feedback message includes an identifier corresponding to the channel state information (803) of the user equipment (100, 200).