Method and system for hybrid protection in optical networks
US7840133B2 · kind B2 · utility
1Cited by
8References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2005 |
| Grant date | Nov 23, 2010 |
| Priority date | — |
| Expiry date | Nov 1, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0297
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A technique for carrying out protection of data traffic in a multi-channel multi-section optical communications network by simultaneously using Optical Multiplexed Section (OMS) protection and Optical Channel (OCH) protection; the technique comprises selection of a working optical signal in an OCH protected optical channel, in case of a fault in a section of the network, by relying on an indication associated with OMS switching functionality that is required to overcome the mentioned fault.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.