Patent ID: 8605841
Filing Date: 2013-12-10
Classification: H04L

Abstract:
1. A method for processing received data symbols in an orthogonal frequency division multiplexing (OFDM) transmission scheme, comprising: determining noise level estimations and channel estimations from the received data symbols, for data demodulation and parameter estimation processing, wherein the step of determining noise level estimations comprises estimating time and frequency selective levels of combined noise and interference; computing noise normalization values (g,G) for a respective time-frequency region of a time-frequency plane that applies in the OFDM transmission scheme employed, from said time and frequency selective noise plus interference levels; applying said noise normalization values to the received data symbols to obtain normalized data symbols; applying said noise normalization values to the channel estimates, to obtain normalized channel estimates; determining communication parameter estimates from said normalized channel estimates; and determining demodulated and decoded data from said normalized data symbols using said normalized channel estimates.