Mobile device-type locking
US9055443B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2012 |
| Grant date | Jun 9, 2015 |
| Priority date | — |
| Expiry date | Oct 25, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A device-type locking procedure is disclosed, where a trusted execution environment (TEE) of a user device retrieves a telecommunication service plan type identifier stored on an identification module of the user device. The TEE of the user device then initiates a service authentication procedure for a telecommunication service provider of the user device, based on the received plan type identifier and in conjunction with an optional service plan provisioning process. A service plan indicated by the plan type identifier is subsequently compared to a designated user device service plan via the TEE. Based on the comparison results, a determination is then made as to whether the user device should be locked or unlocked, depending on the device's current operating state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.