Route search and wavelength allocation method in optical network and device thereof
US8977122B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 27, 2010 |
| Grant date | Mar 10, 2015 |
| Priority date | — |
| Expiry date | Jan 29, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0293
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention provides a method and device for routing and wavelength assignment in an optical network. The method comprises: a topology step in which a topology network of the optical network is obtained; a route calculation step in which at least one route in the topology network is calculated, a first node and a last node of the route being predetermined, and the at least one route being part of all routes from the first node to the last node; and a wavelength assignment determination step in which for each node on the route, it is determined whether link attribute information of the node meets a predetermined constraint condition, if the predetermined constraint condition is met, the route is selected as a working route, and the method ends; if the predetermined constraint condition is not met, the method returns to the route calculation step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.