Subscriber identity module activation for NB-IoT devices
US11051158B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2020 |
| Grant date | Jun 29, 2021 |
| Priority date | — |
| Expiry date | Aug 24, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Processes and systems for locking a NB-IoT device to a NB-IoT SIM before connecting the NB-IoT device to a cellular network are discussed herein. The NB-IoT device may include a status flag that determines whether the NB-IoT device requires a NB-IoT SIM to access NB-IoT-specific functions provided by a cellular network. In one example, a Group Identifier Level 1 (GID1) of the IoT SIM may be queried and compared against a reference value to determine whether the IoT SIM is an NB-IoT SIM, and if confirmed, the NB-IoT device may connect to a cellular network and access the NB-IoT-specific functions. In an example, an NB-IoT device associated with a status flag indicating that the device does not require an NB-IoT SIM may connect to a cellular network, but may not access NB-IoT-specific functions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.