Method and circuit for frequency offset estimation in frequency domain in the orthogonal frequency division multiplexing baseband receiver for IEEE 802.11a/g wireless LAN standard
US7843805B2 · kind B2 · utility
1Cited by
4References
15Claims
0Family size
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Key dates
| Filing date | Mar 9, 2009 |
| Grant date | Nov 30, 2010 |
| Priority date | — |
| Expiry date | Apr 9, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03414
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for frequency offset estimation in frequency domain is provided. The method comprises the following steps. First, a phase angle of a signal field of the input signal after processed by Fast Fourier Transformation (FFT) and channel equalization is calculated. A frequency offset error originated from at least one frequency offset estimation process in time domain is then estimated according to the phase angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.