Method of providing hysteresis in detection of path timing by multiplying delay profile by weighting coefficient

Abstract

A method of allocating a plurality of paths to finger receivers by multiplying a delay profile by a weighting coefficient to provide hysteresis for detection of path timing is disclosed. Signals received at an antenna are down-converted at a high-frequency reception circuit and converted to digital signals at an A/D converter. A sliding correlator derives a delay profile from the digitally converted signals. A delay profile power adder averages path variations due to fading or the like for the delay profile. The delay profile after the path variations are averaged is multiplied by a weighting coefficient from a state weighting section at a multiplier in a weighting unit. A correlation peak position detecting unit detects upper N path timing from the delay profile multiplied by the weighting coefficient. The detected path timing is notified from a rake path allocating unit to respective finger receivers.