Patent ID: 7269204
Filing Date: 2007-09-11
Classification: H04B

Abstract:
1. A path diversity reception device for a spread spectrum communication system, comprising: a path detector comprising a plurality of correlator sets for detecting preamble signals or paths of message signals; a decoder comprising a plurality of RAKE receivers being provided corresponding to said each correlator set for using path information from said path detector for decoding said message signals; and a control portion for controlling these, wherein: said control portion comprises: control means for calculating frequency at which preamble signals are detected within constant time in said path detector, for decreasing the number of correlator sets used in detecting said preamble signals in a delay amount interval in which said detection frequency is low, and for lowering a sample rate of correlation value calculation, and setting means for using said decreased correlator sets in detecting paths of message signals or other channel signals and using its path information with said corresponding RAKE receivers for decoding said message signals or other channel signals.