Establishing an IP multimedia subsystem session
US11096242B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2019 |
| Grant date | Aug 17, 2021 |
| Priority date | — |
| Expiry date | Apr 5, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W36/144
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Apparatuses, methods, and systems are disclosed for establishing an IP multimedia subsystem session. One method includes receiving, at a first network entity from a user device, a first session initiation protocol message comprising a session description protocol, wherein the first session initiation protocol message is used to establish an internet protocol multimedia subsystem session for an application. The method includes transmitting, from the first network entity to a second network entity, a first message comprising an internet protocol address and an identifier for the application. The method includes receiving, at the first network entity from the second network entity, a status of a radio access technology of the user device, wherein the status of the radio access technology of the user device is received by the second network entity from a third network entity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.