Method for switching between a first and a second logical UICCS comprised in a same physical UICC
US9037193B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2011 |
| Grant date | May 19, 2015 |
| Priority date | — |
| Expiry date | Apr 13, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for switching between first and second logical UICCs in the same physical UICC. Each logical UICC has an area for storing overlapped volatile data and an area for storing overlapped persistent data. The physical UICC also has an OS area. When a switch order is received to switch from the first logical UICC to the second logical UICC. Overlapped volatile data from the OS area is backed up to the area for storing overlapped volatile data of the first logical UICC. Overlapped persistent data from the OS area is backed up to the area for storing overlapped persistent data of the first logical UICC. Volatile data from the area for storing overlapped volatile data from the second logical UICC is restored to the OS area. Persistent data from the area for storing overlapped persistent data from the second logical UICC is restored to the OS area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.