Apparatus, and associated method, for estimating frequency offset using filtered, down-sampled likelihood polynomials
US6975839B2 · kind B2 · utility
1Cited by
4References
20Claims
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Key dates
| Filing date | Sep 19, 2002 |
| Grant date | Dec 13, 2005 |
| Priority date | — |
| Expiry date | Apr 16, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2027/0065
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Apparatus, and an associated method, for facilitating frequency offset estimation between communication stations operable in a communication system. A likelihood polynomial is calculated and provided to a filter. The filter forms a filtered representation of the likelihood polynomial, and the filtered representations are down-sampled by a decimator. A sampled, filtered representation of the likelihood polynomial is thereby obtained. The filtered, sampled representation is applied to a root calculator that calculates the roots of the polynomial, thereafter, to be used to compensate for the frequency offset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.