| 摘要 |
The invention relates to a method and an apparatus using smart antenna in frequency division duplex code division multiple access mobile communication system, for solving limitation of smart antenna use due to asymmetric propagation of uplink electric wave and downlink electric wave. In the wireless base station, there are transmitting smart antenna array and receiving smart antenna array and associated transmitters and receivers, respectively, and a common baseband signal processor. In the method, the main path direction is determined by signal direction of arrival, obtained from receiving signal; in the downlink beam forming, an expected transmitting beam form is based on the main path direction. The system can obtain advantages of smart antenna, improve cell coverage, increase system capacity and reduce cost. <IMAGE> |
