Real-time network selection and mobile subscriber identity update for inter-standard network roaming
US8934894B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2009 |
| Grant date | Jan 13, 2015 |
| Priority date | — |
| Expiry date | Oct 1, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/16
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for inter-standard network roaming is provided. Upon roaming into a visited network, an access terminal may send a location update message that includes its current mobile subscriber identity. A roaming gateway receives the update message and uses the current mobile subscriber identity to determine whether the access terminal should be assigned a new mobile subscriber identity for operation in the visited network. If the current mobile subscriber identity indicates that the access terminal is not using a preferred roaming sponsor for the visited network, then the roaming gateway generates or selects a new mobile subscriber identity associated with the preferred roaming sponsor. The new mobile subscriber identity is securely transmitted to the access terminal which uses it for communications over the visited network thereafter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.