Patent ID: 8385434

Claim:
A system for synchronization of an orthogonal frequency division multiplexing (OFDM) signal having a first frequency, the system comprising: a plurality of filters configured to i) receive the OFDM signal, and ii) output a plurality of second signals, each of the plurality of second signals corresponding to a respective one of a plurality of different frequency bands of the OFDM signal, wherein each of the plurality of second signals includes a corresponding synchronization symbol associated with the OFDM signal, wherein the synchronization symbols of each of the plurality of second signals are the same; and a Fourier transform circuit configured to i) receive the plurality of second signals from each of the plurality of filters and ii) output the plurality of second signals, wherein each of the plurality of second signals output from the Fourier transform circuit has a second frequency that is less than the first frequency, wherein the system is configured to i) detect the synchronization symbols in the plurality of second signals having the second frequency and ii) detect a start of OFDM symbols in the OFDM signal based on the detected synchronization symbols, wherein the start of the OFDM symbols corresponds to an average of a plurality of estimations of the start of the OFDM symbols.