Patent ID: 7991092
Filing Date: 2011-08-02
Classification: H04L

Abstract:
1. Method for receiving a multicarrier signal comprising a sequence of symbols in time, each symbol comprising a plurality of carriers carrying data, at least one of the symbols comprising at least one reference pilot, wherein the method includes the following steps: a first estimation of a propagation channel by a receiver device, from at least a first set of said data, according to a first estimating technique taking account of said at least one reference pilot; at least a second estimation of said propagation channel by the receiver device, from said first set, according to a second estimating technique distinct from said first estimation technique; comparison between said first and second estimations, outputting an error signal; detection of at least one interfering signal in said propagation channel, by analysis of said error signal; and correcting at least one of said first or second estimations depending on said error signal, so as to output a corrected estimation, wherein said error signal has at least one error peak corresponding to the at least one interfering signal, and wherein the step of correcting is implemented for at least one of said error peaks and implements a reduction of a confidence value associated with at least one of said plurality of carriers of the multicarrier signal, which are close to at least one of said error peaks in the time/frequency domain.