Mobile terminal identity protection through home location register modification
US7215943B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2003 |
| Grant date | May 8, 2007 |
| Priority date | — |
| Expiry date | Aug 11, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Secure access by a mobile wireless terminal of a wireless telephony network is achieved by having a Home Location Register store the terminal's temporary and permanent identities. Upon accessing the network following initial registration, the terminal sends a temporary identity to a Serving GPRS Support Node (SGSN). If no serving node in the network knows the terminal, the terminal need not sent its permanent identity in clear as was previously required. Rather, the serving node need only query the HLR since the HLR can map the terminal's temporary identity to its permanent identity. In this way, the permanent identity of the mobile wireless terminal remains secure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.