Maintaining reachability of a mobile node
US7539159B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2005 |
| Grant date | May 26, 2009 |
| Priority date | — |
| Expiry date | Mar 17, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W80/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system for selectively updating an address of a mobile node capable of roaming in a home communication network and at least one visited network. The system including a database for storing at least one data entry which is a mapping between a humanly-readable identifier indicating the mobile node and a machine-readable identifier indicating a physical address at which the mobile node can be reached. A home agent in the home network has a connection to the database, and is operable to receive an update message from the mobile node when the mobile node roams into the visited network. Also there are units for determining whether the machine-readable identifier of the at least one entry in the database should be updated, wherein the database is updated if the update message additionally includes the humanly-readable identifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.