Network service continuity in IP multimedia subsystem layer
US12295069B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 2022 |
| Grant date | May 6, 2025 |
| Priority date | — |
| Expiry date | Jul 8, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W8/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods, media, and systems are provided for continuity of a telecommunications network service in an IP Multimedia Subsystem (IMS) layer providing telecommunications network services to devices located on an island. The IMS layer may comprise a Call Session Control Function (CSCF) or an application server. A diameter routing agent (DRA) or other diameter traffic controller associated with the CSCF transmits a request to a Home Subscriber Server (HSS) (e.g., that is located on a mainland). The CSCF, application server, or both have a skip HSS flag comprising instructions for connectivity loss with the HSS. Based on determining a loss of connectivity with the HSS, a Serving CSCF associated with the island is automatically selected or the Serving CSCF automatically transmits a response indicating the request was successful registering a user device, such that the user device continues working remotely on the island.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.