Optical transport network frame structure with in-band data channel and forward error correction
US7278081B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2002 |
| Grant date | Oct 2, 2007 |
| Priority date | — |
| Expiry date | Sep 28, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/004
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An optical transport network data frame structure is configured to provide an in-band data channel. The in-band channel data is contained in the data frame space that would otherwise be allocated to forward error correction (“FEC”) bytes. Consequently, the provision of the in-band data channel does not affect the number of client data bytes contained in the data frame structure. In accordance with a practical embodiment, the data frame structure is compliant with Intra Domain Interface (IaDI) specifications set forth in International Telecommunication Union Telecommunication Standardization Sector (ITU-T) Recommendation Guide For Recommendation, G.709/Y.1331.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.