Patent ID: 8804861
Filing Date: 2014-08-12
Classification: H04L

Abstract:
1. A method comprising: multicarrier transmission by a transmitter of a signal representing a source signal, comprising symbols including a set of subcarriers, transmitted simultaneously and comprising pilot subcarriers intended for at least one processing operation for assisting and/or improving decoding in at least one receiver, and data subcarriers, the location in time-frequency space and a reference value of said pilot subcarriers being known to the at least one receiver, wherein transmission comprises: a phase of modifying, for a given symbol, the reference value of at least one subset of said pilot subcarriers, by correction data configured to correct phase and/or amplitude for each of said pilot subcarriers of said subset, so as to minimise peak-to-average power ratio, said correction data taking at least three distinct correction values, a transition between the correction values of two successive pilot subcarriers of said subset on a frequency axis being constant, and wherein the transition is predetermined according to a multiplicative or additive transition law.