Quality of service in an optical network
US8463122B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2012 |
| Grant date | Jun 11, 2013 |
| Priority date | — |
| Expiry date | Aug 13, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0084
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for performing a path based quality check for a specified bit rate in a wavelength division multiplexing optical network is described. According to one embodiment of the invention, a method selects from a database one of the available paths as a currently selected path. The database stores a representation of the available paths from an access node of the optical network to other access nodes of the optical network. The method further determines a cumulative noise, cumulative chromatic dispersion, and a maximum allowable chromatic dispersion for the currently selected path. In addition, the method determines whether the currently selected path passes the path based quality check based on whether the cumulative noise is less than the maximum allowable noise at a specific bit rate and whether the chromatic dispersion is less than the maximum allowable chromatic dispersion at the specified bit rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.