Downstream data frame transmission method and device
US10855397B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2019 |
| Grant date | Dec 1, 2020 |
| Priority date | — |
| Expiry date | Jan 27, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0223
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A downstream data frame transmitting method includes: generating, by an optical line terminal (OLT), a downstream data frame, where the downstream data frame includes a frame header and a payload, the frame header includes a physical synchronization sequence (Psync) field, and the Psync field is used to identify the downstream data frame, where when a value of the Psync field is a first value, the Psync field is further used to indicate that payload data is protected by forward error correction (FEC); or when a value of the Psync field is a second value, the Psync field is further used to indicate that payload data is not protected by FEC; and sending, by the OLT, the downstream data frame. Embodiments of the present invention can reduce a bit error rate of a FEC indication status and improve reliability of the FEC indication status.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.