Apparatus and methods for home agent resiliency for mobile IPv4
US7443786B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2005 |
| Grant date | Oct 28, 2008 |
| Priority date | — |
| Expiry date | Nov 8, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W80/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Providing resiliency for mobile terminal data sessions, wherein the data sessions rely on Internet Protocol Version 4 and wherein at least one Home Agent node maintains a mobility bindings database for all registered mobile terminals while they are away from a home network. A first aspect of the invention provides physical Home Agent redundancy, perceived by each mobile node as Home Agent IP address redundancy, and a second aspect provides session resiliency. While the second aspect of the invention provides for session resiliency, it uses a mechanism of the former for master failure detection and Home Agent IP address take-over by a backup Home Agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.