| 摘要 |
<p>A transmitter-receiver of this embodiment includes a plurality of antennas (15-a - 15-d) for receiving signals in which a plurality of data are spatially multiplexed, a plurality of RF receivers (16-a - 16-d) and a plurality of demodulators (18-a - 18-d) respectively corresponding to the plurality of antennas, and a network interface (111) and power supply/clock controller (110) for activating only an RF receiver and demodulator corresponding to one of the plurality of antennas in a reception standby period. In the reception standby period, other RF receivers and demodulators are stopped. This makes it possible to largely reduce the power consumption in a communication system having a long reception standby period.</p> |
