Patent ID: 7512187

Claim:
A mobile station comprising: a radio receiver circuit adapted to receive first and second signals from first and second antennas of a base station; a plurality of fingers connected to said radio receiver circuit and each adapted to demodulate said first and second signals for one propagation path; and a Rake combiner connected to said fingers and adapted to combine demodulated signals of said fingers by removing phase fluctuations among said fingers, each of said fingers comprising: a correlator adapted to descramble said first and second signals for said propagation path; a channel coefficient calculating section adapted to calculate first and second channel coefficients of said descrambled first and second signals; first and second average channel coefficient calculating sections adapted to calculate first and second average channel coefficients of said first and second channel coefficients, respectively; a synchronous detector adapted to perform a synchronous detection upon said descrambled first and second signals in accordance with said first and second average channel coefficients; and a channel coefficient clearing section adapted to detect a path switching of said first and second signals to clear either one of said first and second channel coefficients or one of said first and second average channel coefficients.