专利名称：CDMA Receiver with interference and phase
variation canceller
发明人：Ushirokawa, Akihisa, c/o NEC
CORPORATION,Yoshida, Shosei, c/o NECCORPORATION
申请号：EP94110661.9申请日：19940708公开号：EP0633677B1公开日：20050928
摘要：A receiver is disclosed for a DS/CDMA communication system wherein a symbolis spread with a predetermined spread code to produce a DS/CDMA signal which istransmitted on a radio frequency carrier. The receiver includes an interference cancellerfor cancelling signals from undesired sources introduced to a signal received from adesired source using a feedback signal. A phase variation canceller is provided forcancelling a phase variation that occurs in an interval between successive symbols of thereceived signal. Both cancellers are connected in series. A decision circuit compares aninput signal from the interference canceller or from the phase variation canceller with athreshold and produces an output representing one of two discrete values depending onwhether it is higher or lower than the threshold. A correction circuit derives a correctionsignal from a signal produced by the interference canceller and applies it to theinterference canceller as the feedback signal.
申请人：NEC CORP
地址：JP
国籍：JP
代理机构：Vossius & Partner
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