Authentication of termination messages in telecommunications system
US7046992B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 2002 |
| Grant date | May 16, 2006 |
| Priority date | — |
| Expiry date | Oct 29, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/30
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An authentication mechanism renders a communications network impervious to unauthorized requests for interaction termination or cessation. In a release authentication mode of operation, the authentication mechanism protects against an unauthorized connection release message directed to a mobile node (30) of the network, e.g., a mobile station such as a user equipment unit, thereby thwarting an attempt to request an unauthorized connection release procedure concerning a connection involving the mobile node. In a detach authentication mode of operation, the authentication mechanism protects against an unauthorized detach message deceptively transmitted on behalf of a mobile node, thereby thwarting an attempt to request an unauthorized detach procedure for the mobile node. In its modes of operation, the authentication mechanism involves a first node (Ni) of the communications network at which authentication key is provided. The first node of the network uses the authentication key to derive an authentication indicia related to the authentication key. The first node (Ni) provides the authentication indicia to a second node (Nr) of the network. Subsequently, when an interaction terminat…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.