Fine frequency offset estimation and calculation and use to improve communication system performance
US7123670B2 · kind B2 · utility
43Cited by
17References
67Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2001 |
| Grant date | Oct 17, 2006 |
| Priority date | — |
| Expiry date | Mar 24, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2675
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for correcting influence of frequency offset between a receiver and a transmitter by evaluating training symbols received during a preamble period. The method includes producing, based on at least one long training symbol, a first vector whose first vector angle is indicative of a fine offset between the receiver and the transmitter, producing a fine offset estimate based on the first vector angle, and multiplying, with a signal having a frequency based upon the fine offset estimate, data symbols that are received after the at least one long training symbol is received.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.