Base station and communication method of base station

摘要

Appropriate AAS control is achieved by a base station having a plurality of antennas for performing a radio communication with the mobile station by employing Time Division Duplex including an assignment unit for assigning a radio resource to the mobile station, a request unit for requesting the mobile station to transmit a reference signal using a reference signal area of an uplink radio resource in the same frequency band as a downlink radio resource, when the uplink radio resource for an uplink communication in the same frequency band as the downlink radio resource for a downlink communication is not assigned to the mobile station by the assignment unit, and a calculation unit for receiving the reference signal and, based on the reference signal, for calculating a weight used for transmitting a radio signal on the downlink communication channel.

主权项

1. A base station having a plurality of antennas for performing a radio communication with a mobile station by employing Time Division Duplex, comprising:
an assignment unit configured to assign a radio resource to the mobile station; a request unit configured to request the mobile station to transmit a reference signal, when an uplink radio resource for an uplink communication in the same frequency band as a downlink radio resource for a downlink communication is not assigned to the mobile station by the assignment unit, the reference signal using a reference signal area of the uplink radio resource in the same frequency band as the downlink radio resource; and a calculation unit configured to receive the reference signal and, based on the reference signal, to calculate a weight used for transmitting a radio signal on the downlink radio resource.