Patent Number: 7,711,058

Title: Determination of the time delay and/or power of a multicarrier signal

Abstract: The invention relates to a method of determining the time shift and/or the power of a received signal incorporating a reference sequence (3) and transmitted by multicarrier modulation on a set (M) of carriers spaced from each other by a distance n.DELTA.f where n is a natural integer and .DELTA.f is a constant. An inverse Fourier transform is applied to the phase variations between components of the signal carried by carriers separated by k.DELTA.f for consecutive values of k in order to obtain the impulse response (RI) of the signal and the time shift .tau.0 and/or the power of the received signal is/are determined from the impulse response by observation of the highest level amplitude peak.

Inventors: Legouable; Rodolphe (Cesson-Sevigne, FR), Callonnec; Denis (Rennes, FR), Helard; Maryline (Rennes, FR)

Assignee: France Telecom

International Classification: H04K 1/10 (20060101)

Expiration Date: 5/04/12018