Method of configuring an optical path, a path computation engine and an optical communications network node
US9325446B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2011 |
| Grant date | Apr 26, 2016 |
| Priority date | — |
| Expiry date | Dec 11, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0267
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method of configuring an optical path, comprising: selecting a path from a first to a second node in an optical communications network; identifying each wavelength that may be used continuously across the path and selecting a transmission wavelength for the optical path one of the identified wavelengths for which: a fixed wavelength direction-bound add/drop transponder add operable at said wavelength is available at each node; if that first requirement is not met, a fixed wavelength direction-bound add/drop transponder or a fixed wavelength directionless add/drop transponder operable at said wavelength is available at each node; and if that second requirement is not met, a tunable wavelength direction-bound add/drop transponder or a tunable wavelength directionless add/drop transponder operable at said wavelength is available at each node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.