System and method for a previously activated mobile station to challenge network mobile station knowledge during over the air activation
US6195547A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1998 |
| Grant date | Feb 27, 2001 |
| Priority date | — |
| Expiry date | Sep 24, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/06
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
There is disclosed a system and method for over the air (OTA) activation of a previously activated mobile station in a wireless telecommunications network. During the new activation, an over the air processor requests the data configuration of the mobile station. The mobile station may issue a first challenge to the over the air processor and in so doing transmits a challenge message including certain mobile station parameters to the over the air processor. The over the air processor then communicates this information to the network authentication center which produces a challenge return message from the certain mobile station parameters and sends the challenge return message to the mobile station. The mobile station validates the challenge return message and if validation is successful the mobile station completes the transfer of mobile station data configuration to the over the air processor. The authentication center uses one of the Shared Secret Data Challenge (SSD_C) and Shared Secret Data Subsidy (SSD_S) security locks not broadcast over the air in the generation of the challenge return message. The authentication center stores the SSD_C and SSD_S for this purpose and is advi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.