| 摘要 |
PROBLEM TO BE SOLVED: To provide a communication system, a base station, a mobile station and a communication control method, beam forming by the base station when frequency bands of an uplink radio resource and a downlink radio resource are different.SOLUTION: In a communication system 100, a base station 101, including a plurality of antennas, radio communicates with a mobile station 103 using an adaptive array system, and allocates to the mobile station 103 a downlink radio resource and a reference signal downlink radio resource in the same frequency band as the downlink radio resource, to transmit the reference signal using the reference signal downlink radio resource. The mobile station 103, on receiving the reference signal from the base station 101 with the same number of antennas as the base station 101, obtains information related to an antenna weight for beam forming of the base station 101, on the basis of the reference signal, to transmit the information to the base station 101. On receipt of the information related to the antenna weight based on the reference signal, the base station 101 executes beam forming on the basis of the information. |
