Patent ID: 7643582

Claim:
A method for detecting received symbol boundary timing in a multicarrier system, said method comprising: retrieving a first training symbol and a second training symbol from a storage device; computing a difference, on a processor, between (1) the retrieved first training symbol and (2) the retrieved second training symbol to produce a difference value, wherein the computing comprises: subtracting a first sample value of the first training symbol from a second sample value of the second training symbol to produce the difference value; accumulating the difference value with a previously computed difference value; and repeating the subtracting and accumulating over at most a factor of a symbol length; estimating noise due to inter-carrier and inter-symbol interference for different choices of symbol boundary timing; and selecting, based on the accumulated difference value produced by the repeating, the choice of symbol boundary timing with substantially a least estimated noise due to inter-carrier and inter-symbol interference.