Patent ID: 7983213

Claim:
A radio communication apparatus associated with a first radio communication terminal and a second radio communication terminal, the apparatus comprising: a first transceiver unit configured to transmit and receive a first radio signal to and from the first radio communication terminal; a second transceiver unit configured to transmit and receive a second radio signal to and from the second radio communication terminal; a channel state estimating unit configured to estimate a first channel state between the first radio communication terminal and the radio communication apparatus and a second channel state between the second radio communication terminal and the radio communication apparatus based on the received first radio signal and the received second radio signal; an assignment unit configured to simultaneously assign the first transceiver unit and the second transceiver unit to one of the first radio communication terminal and the second radio communication terminal based on the first estimated channel state and the second channel state; a first switch group configured to switch a first state of the first transceiver unit and the second transceiver unit; and a second switch group configured to switch a second state of the first transceiver unit and the second transceiver unit, wherein each of the first transceiver unit and the second transceiver unit comprise an antenna, a radio frequency conversion unit, and a modulation and demodulation unit, the first switch group being provided between the antenna and the radio frequency conversion unit, the second switch group being provided between the radio frequency conversion unit and the modulation and demodulation unit, and the first transceiver unit and the second transceiver unit transmitting and receiving the first radio signal and the second radio signal by setting the first state and the second state, respectively.