| 摘要 |
A communications device using an adaptive antenna allows for adaptive control of the weights provided as an input to each antenna elements of the downlink based on uplink arrival angle information regardless of the difference between the uplink and downlink frequencies, and thereby increase the system capacity of the communications system. The communication device includes an downlink weighting calculator which extracts arrival angle information for each user from uplink user signal information, simulated user signals corresponding to each antenna branch which are generated in a simulated user signals generator and a downlink weighting calculator which controls based on the arrival angle of a desired user, and the weights of the downlink applied to the respective antenna branches, based on an arbitrary adaptive algorithm using these simulated user signals.
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