Patent ID: 9749169
Date: 2017-08-29
CPC Classifications: H03H,H03L,H04L

Claim:
1. A method for data recovery (DR) from a received orthogonal frequency division multiplexing (OFDM) signal comprising multiple tones or sub-carriers carrying transmitted data, wherein the data recovery is based on a recovery of the tones or sub-carriers, wherein the DR method comprises the steps of: oversampling of the received OFDM signal; sampling of frequencies occurring in the oversampled OFDM signal in order to recover the tones or sub-carriers from the oversampled OFDM signal, wherein the sampling of frequencies and the recovery of the tones or subcarriers are implemented with a real time processor driven by clocks synchronous to frames of the received OFDM signal; processing the recovered tones or sub-carriers in order to estimate amplitudes and phases of singular half-cycles or cycles of the recovered tones or sub-carriers; transforming the estimated amplitudes and phases by reversing distortions introduced by a transmission channel supplying the received OFDM signal; using the transformed amplitudes and phases for recovering data symbols encoded originally in a transmitted OFDM signal.