Optimization of connection paths in a communications network
US6724881B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2000 |
| Grant date | Apr 20, 2004 |
| Priority date | — |
| Expiry date | Feb 10, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/12
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for optimizing an established call routed across a network from an originating exchange to a destination exchange over a first connection path. The first connection path features a path metric of interest, such as administrative weight. A second connection path is identified which features an improved path metric, the path is made operative and the call is directed over the second connection path. Thereafter, the first connection path may be dismantled. The second connection path is preferably identified by signalling a call set-up message over the network, wherein the message incorporates a reporting field and each transiting exchange propagating the message updates the reporting field until it specifies the path metric of the replacement connection path traversed by the call set-up message. A connect message incorporating the reporting field back is signalled back to the originating exchange from the destination exchange. If the reporting field specifies an improved path metric the replacement connection path is then identified; otherwise the process may be repeated until such time as the second path is found. Alternatively, if the call set-up message includes a desired …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.