| 摘要 |
A radio communication system comprises a control device that controls a radio base station, which uses a plurality of first transmission antennas to transmit a first radio signal, for which a channel A is used, to a radio terminal and a radio base station, which uses a plurality of second transmission antennas to transmit a second radio signal, for which the channel A is used, to a radio terminal. The radio terminal, if having received the second radio signal, transmits, to the radio base station, interference information based on the arrival direction from which the second radio signal comes to the radio terminal. Based on the interference information received by the radio base station, the control device transmits, to the radio base station, control information to be used for directing, in the arrival direction, the null point of a directional beam formed by the second transmission antennas.
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