Security anchor function in 5G systems
US10848967B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 24, 2019 |
| Grant date | Nov 24, 2020 |
| Priority date | — |
| Expiry date | May 24, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for handling change of serving Access and Mobility Managing Function for a user equipment. The method comprises sending of a context request to a source Access and Mobility Managing Function. This sending is performed from a target Access and Mobility Managing Function. In the target Access and Mobility Managing Function, a context is received (S3) in reply from the source Access and Mobility Managing Function. The context comprises a parameter which identifies a Security Anchor Function Access and Mobility Managing Function. The Security Anchor Function Access and Mobility Managing Function keeps a key, which is shared with the user equipment. A method for handling a change of serving Access and Mobility Managing Function in a user equipment is also disclosed as well as Access and Mobility Managing Function and User Equipments therefore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.