Patent ID: RE39275

Claim:
A demodulator for a CDMA adaptive antenna array system comprising: correlators bank means for receiving digital baseband signals of a chip-level received through an antenna array of a base station and computing correlation values with a local code sequence; beamforming means for receiving the digital baseband signals and calculating beamforming weight vectors on the basis of the correlation values of said correlators bank means; beamforming complex multiplying means for a multipath searcher, for receiving the digital baseband signals, performing a complex multiplication for the beamforming weight vector from said beamforming means and the respective signals, and summing up them; searchers bank means for receiving output signals from said beamforming complex multiplying means provided for the multipath searcher, executing a multipath search to output multipath search timing information, and inputting and outputting data from/to said beamforming means for a selection diversity; beamforming complex multiplying means for a finger, for receiving the digital baseband signals, performing the complex multiplication for the beamforming weight vector from said beamforming means and the respective signals, and summing up them; finger bank means for receiving output signals from said beamforming complex multiplying means provided for the finger, executing a multipath tracking on the basis of the multipath search timing information of said searchers bank means, and supplying traced multipath tracking timing information to said correlators bank means; and multipath-combining means for receiving output signals from said finger bank means, performing a multipath combination for the output signals on a time base, and outputting it.