| 摘要 |
There is provided a communication device capable of transmitting a transfer rate request signal while reducing it and reducing the interference and power consumption when the transfer rate request signal is transmitted substantially without lowering the transmission efficiency in the MIMO communication method. In this device, a modulation encoding unit (125) encodes and modulates transmission data transmitted to a communication partner of the MIMO communication method and the transfer rate request signal in the plurality of transmission antennas. A transmission unit (132) and a transmission antenna (134) transmit a signal from the modulation encoding unit (125). A transmission control unit (120) controls transmission of a signal transmitted from the transmission antenna (134) and transmits a transfer rate request signal of one transmission antenna via the transmission antenna (134) according to a comparison result between a difference of the transfer rate request signal in the respective transmission antenna of the communication partner and a predetermined value. |
