| 摘要 |
It is possible to improve the signal quality when executing the SDMA. In the uplink line, a signal processing unit (14) receives signals from a plurality of terminal devices (26) multiplex-connected by time division. Furthermore, transmission path characteristics for reception corresponding to the terminal devices (26) in time slot unit are respectively extracted. Moreover, in the downlink line, the signal processing unit (14) extracts transmission path characteristics for transmission from the extracted transmission path characteristics for reception and transmits a signal to each of the terminal devices (26) subjected to the SDMA, according to the extracted transmission path characteristics for transmission. A control unit (20) allocates a channel to each of the terminal devices (26) so as to connect the terminal devices (26) by the SDMA for the downlink line and connect the terminal devices (26) by the TDMA for the uplink line. ® KIPO & WIPO 2007
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