Spectrum coordination in optical line protection to minimize optical transceiver retuning
US11342988B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2020 |
| Grant date | May 24, 2022 |
| Priority date | — |
| Expiry date | Sep 3, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0293
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Systems and methods include, responsive to a fault affecting an optical service on an active path in an optical network operating at a frequency μ1 via an optical transceiver and having optical line protection via an optical protection switch, switching to an inactive path that now becomes the active path and finding a new route in the optical network for the inactive path that has the fault; responsive to being unable to find a route at the frequency μ1, switching the inactive path to a new route at a different frequency μ2; and implementing spectrum coordination relative to the inactive path to either determine the frequency μ1 is available on the new route or to find another new route for the inactive path where the frequency μ1 is available.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.