Protection method and system in flexible bandwidth optical networks with multi-core fiber
US11387897B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2020 |
| Grant date | Jul 12, 2022 |
| Priority date | — |
| Expiry date | Jul 24, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/052
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention provides a protection method and system in flexible bandwidth optical networks with multi-core fiber. The method includes steps of: selecting an appropriate working path for a connection request, and selecting a working core as a transmission channel on the working path; allocating, on the selected working path and working core, a spectrum resource that satisfies spectral continuity, spectral consistency, and a crosstalk threshold constraint; selecting, for the connection request, a dedicated protection path that does not intersect a link of the working path, and selecting a protection core as a transmission channel on the protection path; and finally, allocating, on the selected protection path and protection core, the spectrum resource that satisfies the spectral continuity, the spectral consistency, and the crosstalk threshold constraint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.