| 摘要 |
A communication system (1) causes a base station (100a-100e) to transmit a downlink control signal to a mobile station (200a-200b) through a downlink control channel, and causes the base station to transmit a downlink data signal to the mobile station through a downlink data channel. The communication system (1) includes a diversity judging unit configured to judge whether or not transmission diversity control for adjusting a carrier phase difference between multiple downlink signals transmitted through multiple antennas is performed. The communication system (1) also includes a power offset value deciding unit configured to control transmission power of the downlink control signals based on a result of judgment by the diversity judging unit. |
