Process and apparatus for performing initial carrier frequency offset in an OFDM communication system
US8442135B2 · kind B2 · utility
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1References
13Claims
0Family size
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Key dates
| Filing date | Dec 29, 2009 |
| Grant date | May 14, 2013 |
| Priority date | — |
| Expiry date | Dec 29, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2675
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A carrier frequency offset between a base station and a receiver of an Orthogonal Frequency Division Multiplex communication system is estimated by maximizing a function depending on the carrier frequency offset. The function is built using a sequence received by the transmitter when the base station emits a pilot sequence, taking into consideration a variance of the noise and a presumed length of the channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.