Gx session recovery for policy and charging rules function
US11316708B2 · kind B2 · utility
0Cited by
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20Claims
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Key dates
| Filing date | Jun 29, 2020 |
| Grant date | Apr 26, 2022 |
| Priority date | — |
| Expiry date | Dec 11, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/24
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A Policy and Charging Rules Function (PCRF) can maintain a mapping table that associates gateway identifiers of gateways in a packet core network with corresponding IP address ranges. Based on an IP address of user equipment (UE), the PCRF can identify which of the IP address ranges in the mapping table over the UE's IP address, and which gateway identifier is mapped to that IP address range. The PCRF can accordingly contact the identified gateway to establish a Gx session for the UE with the gateway, such as restoring a previous Gx session or establishing a new Gx session.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.