RADIO RECEIVER AND RADIO RECEPTION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a radio receiver that executes repetitive path search and repetitive channel estimate with high accuracy even when receiving a signal multiplexed with channels having a different transmission power ratio. SOLUTION: A multiplier 109 multiplies a gain factor βc with a PL (Pilot) part of a PL signal and a multiplier 110 multiplies a gain factor βd with data of a data part. A weight control circuit 112 controls the gain factors βc, βd. An adder 111 sums the PL signal and the data with the gain factors multiplied therewith and provides an output of a sum PL signal to a delay profile generating circuit 113. The delay profile generating circuit 113 uses the sum PL signal to generate a delay profile and outputs it to a path selection circuit 104, in which path search is conducted and information of selected reception timing is outputted to a RAKE synthesis circuit 105 and a channel estimate circuit 115.