Wireless communication device and method for over-the-air application service
US7319757B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 2, 2003 |
| Grant date | Jan 15, 2008 |
| Priority date | — |
| Expiry date | Sep 12, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A communication network provides over-the-air (OTA) applications and application services to wireless devices in a way that provides authentication and helps insure confidentiality and/or information integrity. An authentication center authenticates a wireless device by comparing a signed response from the device with a predicted signed response. The signed responses may be generated from a random number, the device's identification number and user key. When the wireless device is authenticated, the OTA application may be sent to the wireless device in protocol data units (PDUs). Prior to sending the PDUs, a random number may be added to one of the PDUs. When receiving the PDUs, the device may extract the random number and calculate a cipher key using the number and a user key. The OTA application may be accepted when the calculated cipher key matches a prior generated cipher key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.