Application server node, user equipment and methods in a communications network
US12052295B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2020 |
| Grant date | Jul 30, 2024 |
| Priority date | — |
| Expiry date | Jun 10, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W60/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method performed by an Application Server (AS) node PCRM-AS for assisting a UE in restoring an association between an Internet protocol Multimedia Subsystem, IMS, node, and the UE via one or more first intermediate proxy nodes in a communications network is provided. When the AS node receives from the UE, a first registration relating to the association, monitor said association. The first registration registers the UE to an IMS network. The first registration comprises an identity identifying the UE and a Push Notification Service (PNS) node serving the UE. When any of the intermediate proxy nodes in the monitored association becomes unavailable, the AS node sends an instruction to the identified PNS node. The instruction instructs the PNS node to send a notification to the identified UE. The notification triggers the UE to restore the association between the IMS node and the UE via one or more available second intermediate proxy nodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.