Patent ID: 7764752

Claim:
A method for reducing interference due to handshake tones in the frequency domain in a communication system, the method comprising the steps of: receiving an input signal X t in the frequency domain at bin q and time-symbol t, wherein the input signal comprises a short correlation time component and a long correlation time component, wherein the long correlation time component corresponds to a disturbance signal due to handshake tones; attaining near zero correlation for the short correlation time component in the received input signal by delaying the input signal by a time-symbol value N, wherein N is an integer such that the generated delayed signal is X t-N ; estimating the disturbance signal by generating a prediction signal with long correlation properties based at least in part on the delayed signal; comparing the input signal and the prediction signal; and correlating the received input signal to the disturbance signal by reducing a variance between the received input signal and the prediction signal, wherein the steps are performed in a transceiver within the communication system.