IMS selection for multi-HSS route advance
US11910474B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2021 |
| Grant date | Feb 20, 2024 |
| Priority date | — |
| Expiry date | Mar 10, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W60/005
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a multi-HSS domain, in which some HSSs support a custom route advance (RA) logic and others do not, a P-CSCF may receive a request for service from a UE associated with one of the HSSs, and send the request to an assigned S-CSCF (S-CSCF1) associated with the UE. Upon failing to receive a response from the S-CSCF1 within a preset time period, the P-CSCF may send the request to the I-CSCF. Based on information included in the request, the I-CSCF may discover an address of a second S-CSCF (S-CSCF2) from the associated HSS and sending the request to the S-CSCF2 based on the discovered address of the S-CSCF2, or send a message indicative of the requested service being unavailable to the P-CSCF.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.