The reference signal generating method in the presence of frequency offsets in a communications station with spatial processing function

摘要

(57) A method for generating a reference signal from a modulated signal transmitted to the communication station with a spatial processing means and Abstract antenna element array, the method comprising: the signal received by the antenna elements, remote specific The separated using an initial spatial weight vector corresponding to the remote station of the particular copy signal corresponding to the signal transmitted by the station; have time alignment and frequency offset substantially the same as the received antenna signal from the terminal copy signal It consists in; used to calculate a new spatial weight vector by optimizing a cost function that uses the reference signal and the signal receiving antenna; determine the reference signal. For demodulation, the present invention further method comprises a step of extracting the sign of the modulation signal.