Importance

Loading Importance Indicators...

Abstract

A receiver of a CDMA system using a spread spectrum scheme is provided, which, particularly in a case where the RAKE synthesis is performed, stably extracts path timings to be synthesized and realize a reliable RAKE synthesis. Self correlation of a replica of a spreading code is calculated on the side of the receiver and an upper and lower threshold values obtained by incorporating the self correlation value thus calculated in an error range corresponding to a receiving signal quality are used as judge references for judging an output of a searcher circuit. When the output of the searcher circuit is within a range defined by the upper and lower threshold values, it is deemed as an invalid correlation value due to self correlation and, when the output of the searcher circuit is out of the range, it is deemed as effective path timing to be synthesized.

Loading the Abstract Image...

First Claim