BASE STATION, COMMUNICATION CONTROL METHOD, AND PROCESSOR

摘要

In a mobile communication system that supports downlink multi-antenna transmission, a base station managing a cell receives beamforming control information fed back from each of a plurality of beamforming target terminals connected to the cell, and null steering control information fed back from a null steering target terminal. When there exists no beamforming target terminal that feeds back the beamforming control information that coincides with the null steering control information, the base station selects, as a pair terminal, a beamforming target terminal that feeds back the beamforming control information containing a predefined rank indicator.

主权项

1. A base station for managing a cell in a mobile communication system that supports downlink multi-antenna transmission, comprising:
a receiver configured to receive beamforming control information fed back from each of a plurality of beamforming target terminals connected to the cell, and null steering control information fed back from a null steering target terminal; and a controller configured to select, as a pair terminal to be paired with the null steering target terminal, a beamforming target terminal that feeds back the beamforming control information that coincides with the null steering control information, wherein the beamforming control information contains a rank indicator that indicates preferred number of signal sequences to be applied to the downlink multi-antenna transmission, and when there exists no beamforming target terminal that feeds back the beamforming control information that coincides with the null steering control information, the controller selects, as the pair terminal, a beamforming target terminal that feeds back the beamforming control information containing a predefined rank indicator.