Method and apparatus for mapping and de-mapping in an optical transport network
US8948205B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2010 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | May 19, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/1652
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The embodiments of the present invention disclose method and apparatus for mapping and de-mapping in an optical transport network, where the mapping method includes: constructing an Optical Channel Data Tributary Unit (ODTU) according to an amount M of time slots of a High Order Optical Channel Payload Unit (HO OPU) to be occupied by a Low Order Optical Channel Data Unit (LO ODU); mapping the LO ODU to a payload area of the ODTU in a M-byte granularity; encapsulating overhead information to the overhead area of the ODTU; and multiplexing the ODTU, which has been mapped the LO ODU and encapsulated with the overhead information, to the HO OPU, so as to provide a high-efficient and universal mode for mapping the LO ODU to the HO OPU.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.