Patent ID: 6810075
Filing Date: 2004-10-26
Classification: H04B

Abstract:
A CDMA receiver comprising:an AD converter for converting analog receiving signals from a plurality of base stations into digital signals and outputting a plurality of branch signals to be transmitted through different propagation paths; a path searcher for assigning the branch signals to fingers according to delay profiles thereof; a plurality of finger portions to be assigned to the branch signals according to a finger assignment performed in said path searcher; and a rake combiner for performing a maximum ratio combining of powers of a plurality of mutually delayed signals obtained from said fingers, wherein said path searcher comprises: a plurality of peak detectors provided correspondingly to the respective branch signals for detecting correlation peaks of the respective branch signals from the delay profiles of the branch signals and producing a peak information of the branch signals, respectively; a plurality of finger assignors provided correspondingly to the respective branch signals for assigning the branch signals to said finger portions according to the peak information and outputting path timings of the plurality of said finger portions; and a finger distributor for setting an aimed number of fingers to be assigned to each of said finger portions such that the number of fingers assigned to each of said finger portions is even for the plurality of the branch signals and feeding the numbers of fingers assigned to said respective finger portions, branch numbers of said fingers and the timing information back to said finger assignors.