Patent ID: 8175123

Claim:
A method for communication, the method comprising: receiving, over a communication channel, a first orthogonal frequency division multiplexing (OFDM) symbol and a second OFDM symbol, wherein the first OFDM symbol comprises a cyclic prefix of a cyclic prefix length and a plurality of frequency division multiplexed (FDM) symbols and is characterized by a first arriving path (FAP) and a last arriving path (LAP), the FAP and the LAP being separated by a delay spread; estimating a channel location from a channel impulse response of the communication channel; choosing a point relative to the channel location; and placing a beginning of a Fourier transform function collection window for the second OFDM symbol at the point, wherein: the point is chosen at a first location relative to the channel location using a first algorithm if the delay spread is less than a predetermined length, and the point is chosen at a second location relative to the channel location using a second algorithm if the delay spread is greater than the predetermined length, the second algorithm being different from the first algorithm; and transforming the symbols to time-domain samples.