| 摘要 |
In a base station having a plurality of antennas (101, 201), each of comparison circuits (301, 401) operates to compare correlation levels, which are obtained by subjecting received signals to despread every channel, with each other with respect to the antennas every channel. Each of transmission antenna selecting circuits (305, 405) operates to determine from which antenna the transmission signal is to be transmitted every channel in transmission. Each of multiplexing circuits (106, 206) operates to multiplex the transmission signals of the individual channels, which are obtained by the spread, every antenna. As a result, on the basis of the result of comparing the correlation levels with respect to the first and second antennas (101, 201), the transmission antenna is selected every channel, and the signals to be transmitted of the channels are multiplexed every antenna to transmit the resultant signal, whereby the base station transmission diversity is realized. |
