Virtual private network for cellular communications
US6885864B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2001 |
| Grant date | Apr 26, 2005 |
| Priority date | — |
| Expiry date | May 14, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/16
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The virtual private network for cellular communications implements a secure local area voice and data network for use by members of an organization, such as a corporate customer. The virtual private network is implemented in the existing non-terrestrial cellular communications network in the form of software and routing tables that isolate the calls in the virtual private network from the existing cellular communications network infrastructure. This isolation can be effected, for example, by assigning fictitious station identifiers, such as telephone numbers, to the cellular subscriber stations served by the virtual private network. These fictitious numbers are identified by the gateway cellular switch that serves a customer's facility as subscribers served by the virtual private network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.