Patent ID: 8064553

Claim:
A method of estimating a coarse frequency offset in a receiver, said method comprising: providing at least one candidate frequency offset in Orthogonal Frequency-Division Multiplexing (OFDM) symbols having transmission and multiplexing configuration control (TMCC) bins and auxiliary channel (AC) bins; modulating said TMCC bins and AC bins using differential binary phase shift keying (DBPSK) modulation; estimating a phase difference between a first symbol and a second symbol for said candidate frequency offset of said TMCC and AC bins to obtain a resulting phase difference; correcting said resulting phase difference based on a difference between said candidate frequency offset and a Fast Fourier Transform (FFT) center bin to obtain a corrected phase difference; mapping said corrected phase difference to numeric numbers, wherein said numeric numbers correspond to at least one of +1 or −1; and adding said numeric numbers for said candidate frequency offset to obtain a summation result.