Location processing in a volte network
US9635636B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2015 |
| Grant date | Apr 25, 2017 |
| Priority date | — |
| Expiry date | Dec 31, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W80/10
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Systems and methods for processing location or time zone information updates during a VoLTE call session teardown are provided. In one aspect, a Network Element (NE) of the IP Multimedia Subsystem (IMS) transmits a Session Initiation Protocol (SIP) session end message to a subscriber User Equipment (UE) to teardown a VoLTE session. The NE generates (but does not send) an Accounting Charge Request (ACR) STOP message for the VoLTE session. The NE receives a SIP response message, and determines if it includes an update to the UE's last known User Location Information (ULI) or the UE's last known Time-Zone (TZ). The NE includes the any updates to the ULI or TZ in the generated ACR STOP message if included in the SIP response, and, transmits the ACR STOP message to an Offline Charging System (OFCS) of the telecommunications network using the Diameter Protocol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.