Method and device for recovering OTUk frame, and system for transporting OTUk frame
US8848747B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2012 |
| Grant date | Sep 30, 2014 |
| Priority date | — |
| Expiry date | Apr 19, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/1652
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for recovering an OTUk frame includes: receiving an optical signal sent by using a method of multi-lane distribution from the OTUk frame to an interface of an optical module; converting the optical signal into an electrical signal, performing electrical equalization and demodulation on the electrical signal, and recovering multi-lane data from the demodulated signal; aligning and rearranging the data on each lane, according to a lane sequence identifier included in an overhead frame header of the data on each lane; and recovering the OTUk frame according to the aligned and rearranged data. According to the present invention, lane rearrangement is performed by detecting the lane sequence identifier, and the recovery of the OTUk frame is achieved. Therefore, a training sequence overhead does not need to be additionally introduced, and the influence on the system performance is avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.