Method and device for fine synchronization of a digital telecommunication receiver
US7471754B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 15, 2002 |
| Grant date | Dec 30, 2008 |
| Priority date | — |
| Expiry date | Jul 17, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/70757
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for the synchronization of a digital telecommunication receiver comprises the steps of:—storing a plurality of consecutive samples E−1, E, M, L, L+1 of an incoming spread spectrum signal in a delay line 56;—determining by interpolation between consecutive samples of the incoming spread spectrum signal, by means of a first digitally controlled interpolator 26, an interpolated early sample (e) anticipating an optimal sampling time instant;—determining by interpolation between consecutive samples of the incoming spread spectrum signal, by means of a second digitally controlled interpolator 24, an interpolated middle sample (m) corresponding to the optimal sampling time instant;—determining by interpolation between consecutive samples of the incoming spread spectrum signal, by means of a third digitally controlled interpolator 28, an interpolated late sample (l) delayed with respect to the optimal sampling time instant;—calculating an error signal ξ as the difference between the energy of the symbols computed from the interpolated early sample (e) and the interpolated late (l) sample;—extracting the sign of the error signal ξ—accumulating the sign of the error signal ξ for the…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.