| 摘要 |
A communication control method is applied to a mobile communication system including a base station that transmits a downlink signal through a plurality of antenna ports, and a user terminal that feeds back precoder matrix information to the base station, the downlink signal being precoded using a precoder matrix, the precoder matrix information indicating a precoder matrix preferred to be used in a downlink. The communication control method comprises: a step A of notifying, by the user terminal, the base station of antenna port information indicating an antenna port with low degree of contribution at a time of transmission from the base station when the precoder matrix information is fed back to the base station. |
