Coarse symbol boundary detection in OFDM receivers
US9729377B2 · kind B2 · utility
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3References
20Claims
0Family size
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Key dates
| Filing date | May 16, 2014 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | May 16, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2666
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for determining a symbol boundary in a data packet belonging to a received OFDM signal is provided. The data packet includes a first training filed and a second training field, which begins with a guard interval. The method includes detecting the beginning of the data packet, and starting an automatic gain control process. The method further includes, after the automatic gain control process is locked, determining autocorrelation peaks and estimating the symbol boundary from times of the autocorrelation peaks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.