Patent ID: 6377613
Filing Date: 2002-04-23
Classification: H04B

Abstract:
A communication apparatus used for a code divisionmultiple accessing mobile communication system, comprising:a radio frequency demodulator for demodulating a plurality of carrier frequency band signals received at a plurality of receiving antennas to a plurality of base band spread spectrum signals; a multiplexer for multiplexing a plurality of said base band spread spectrum signals in a time division manner; a matched filter for calculating a correlation between each of a plurality of said base band spread spectrum signals multiplexed in a time division manner and a spread code, thereby outputting a correlation value therebetween; a peak detector for detecting the predetermined number of peak values selected from peak values of said correlation values in descending order of received power factor; and a despreader for despreading a plurality of said base band spread spectrum signals using a spreading code whose phase is adjusted to a timing detected in said peak detector.