Determination of the time delay and/or power of a multicarrier signal
US7711058B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2003 |
| Grant date | May 4, 2010 |
| Priority date | — |
| Expiry date | Jul 25, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2675
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
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 nΔf where n is a natural integer and Δf is a constant. An inverse Fourier transform is applied to the phase variations between components of the signal carried by carriers separated by kΔf for consecutive values of k in order to obtain the impulse response (RI) of the signal and the time shift τ0 and/or the power of the received signal is/are determined from the impulse response by observation of the highest level amplitude peak.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.