Patent ID: 9515687
Filing Date: 2016-12-06
CPC Classification: H04B,H04L

Claim Text:
1. A method of inter-carrier-interference (ICI) cancellation in an orthogonal frequency division multiplexing (OFDM) receiver comprising: receiving OFDM sub-carriers; performing a first ICI cancellation based on known pilot carriers of the received OFDM sub-carriers; slicing the received OFDM sub-carriers to generate an estimated OFDM sub-carriers performing a second ICI cancellation of the estimated OFDM sub-carriers; demodulating the estimated OFDM sub-carriers to create demodulated data; de-interleaving and de-mapping of the demodulated data; partial forward error correcting of the demodulated data to avoid delay in full error correcting; interleaving and mapping of the partially forward error corrected demodulated data to provide reconstructed estimates of the OFDM sub-carriers; performing a third ICI cancellation on the reconstructed estimates of the OFDM sub-carriers; de-interleaving and de-mapping of the reconstructed estimates of the OFDM sub-carriers; and forward error correcting the de-mapped reconstructed estimates of the OFDM sub-carriers.