WIRELESS COMMUNICATION APPARATUS, WIRELESS COMMUNICATION METHOD, AND WIRELESS COMMUNICATION SYSTEM

摘要

An overhead accompanying feedback from a UE terminal is reduced.;The UE terminal selects not only M subbands with high quality but also M subbands with poor quality. Alternatively, the UE terminal selects M subbands to be fed back by increasing a priority of a subband with a high degree to which the quality of the subband is to be improved by the feedback or a subband having a high possibility of unnecessary eNodeB being removed from the CoMP set by the feedback. In addition, the UE terminal performs measurement and feedback in units of subband groups which can be collectively handled.

主权项

1. A wireless communication apparatus comprising:
a reference signal measurement unit that performs measurement of reference signals transmitted from respective base stations in a wideband and respective subbands, under a communication environment in which an entire system bandwidth is used as the wideband and a plurality of subbands obtained by dividing the system bandwidth are used; a measurement result selection unit that selects measurement results to be fed back in order to determine a cooperative group of the base stations which performs Coordinated Multi Point Transmission/Reception (CoMP) for its own apparatus, among measurement results obtained in the wideband and the respective subbands by the reference signal measurement unit; and a feedback unit that feeds back the measurement results selected by the measurement result selection unit to the base station.