Patent ID: 8837616

Claim:
A method comprising: at a receiver, coarsely correlating a received orthogonal frequency division multiplexed (OFDM) signal against a pilot reference to obtain a coarse channel estimate, the received OFDM signal comprising a distributed pilot signal and an OFDM data signal; coarsely equalizing the received OFDM signal based on the coarse channel estimate; removing the distributed pilot signal from the received OFDM signal after coarsely equalizing to generate a coarse data signal estimate; removing the coarse data signal estimate from the received OFDM signal using the coarse channel estimate to generate a residual pilot signal; finely correlating the residual pilot signal against the pilot reference to obtain a fine channel estimate; finely equalizing the received OFDM signal based on the fine channel estimate; and removing the distributed pilot signal from the received OFDM signal after fine equalization to generate a fine data signal estimate from which data is recoverable.