End-to-end location privacy in telecommunications networks
US6999437B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2002 |
| Grant date | Feb 14, 2006 |
| Priority date | — |
| Expiry date | Nov 1, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/005
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and system for routing messages between hosts while maintaining end-to-end location privacy are disclosed. In order to make routing more efficient, while maintaining location privacy, an encapsulation cache may be created in access routers that have a trust relationship with the respective home networks of the hosts. The encapsulation cache can be used to store home-address to care-of-address correspondences so that the access router, when a host is roaming, can route a message directly to the message's intended recipient, yet still maintain location privacy for the sending host by replacing the host's care-of address at the roaming network with the host's home address.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.