Patent ID: 8472540

Claim:
A method comprising: determining, by a receiver, a frequency offset in a signal comprising a set of orthogonal frequency division multiplexed (OFDM) symbols, the determining including: determining a first difference in phase angles between an n th OFDM symbol and an n th +1 OFDM symbol on a common OFDM carrier and a first difference in phase angles between the n th +1 OFDM symbol and an n th +2 OFDM symbol on the common OFDM carrier, and determining a second difference in phase angles between the first difference in phase angles between the n th OFDM symbol and the n th +1 OFDM symbol and the first difference in phase angles between the n th +1 OFDM symbol and the n th +2 OFDM symbol to identify the frequency offset, wherein nε{1, . . . , N}; and correcting, by the receiver, the signal using the determined frequency offset.