System and method for modification of satellite hop counter to reflect orbit type
US6449478B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 1999 |
| Grant date | Sep 10, 2002 |
| Priority date | — |
| Expiry date | May 6, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/18521
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A telecommunications system and method is disclosed for providing a more accurate measurement of the cumulative path delay present in a call to enable switches to make an informed decision as to the routing method to use. In one embodiment, the Integrated Services Digital Network User Part (ISUP) satellite hop counter field is expanded to include three fields, one for each type of delay: geostationary satellite hops, mid-earth orbit satellite hops and low-earth orbit satellite hops. In an alternative embodiment, a cumulative delay value in milliseconds or centiseconds, instead of the number of satellite hops, can be included in the expanded ISUP satellite hop counter field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.