Frequency offset estimation method and apparatus in optical transmission network and storage medium
US10153926B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Sep 12, 2014 |
| Grant date | Dec 11, 2018 |
| Priority date | — |
| Expiry date | Nov 24, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2027/0026
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Disclosed are a frequency offset estimation method and apparatus in an optical transmission network and a storage medium. The method comprises: acquiring a data symbol to be frequency offset estimated, and eliminating a noise phase, a phase generated by a light source and an information phase in the data symbol to be frequency offset estimated; and performing a correlation operation on a data symbol with a set interval in the data symbol after the elimination processing and using a correlation operation result to determine a frequency offset estimation value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.