Method and apparatus for estimation of orthogonal frequency division multiplexing symbol timing and carrier frequency offset
US7218691B1 · kind B1 · utility
30Cited by
37References
84Claims
0Family size
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Key dates
| Filing date | Feb 4, 2002 |
| Grant date | May 15, 2007 |
| Priority date | — |
| Expiry date | May 15, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2695
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method estimates symbol timing of long training symbols and coarse carrier frequency offset in an orthogonal frequency division multiplexing receiver of a wireless local area network. The system and method estimates the symbol timing and coarse carrier frequency offset during short training symbols of a preamble of a data packet. Fine carrier frequency offset is estimated during long training symbols. Channel estimates during a data portion of the data packet are adapted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.