Failover to a backup policy and charging rules function (PCRF) node
US11778490B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2021 |
| Grant date | Oct 3, 2023 |
| Priority date | — |
| Expiry date | Mar 28, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/1403
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A telecommunication network associated with a wireless telecommunication provider can be configured to use a backup PCRF when a primary PCRF is detected as exhibiting a failure condition. Instead of the backup PCRF synchronizing with the primary PCRF as in a redundancy mode, the backup PCRF receives a copy of messages sent to the primary PCRF and maintains session information independently from the primary PCRF. In some configurations, a node within the call flow, such as a Diameter Routing Agent (DRA) transmits a copy of the message sent to the primary PCRF to the backup PCRF. In this way, the backup PCRF will not receive data from the primary PCRF that may be corrupted. When a routing agent detects a failure condition of the primary PCRF, the routing agent seamlessly transitions to use of the backup PCRF.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.