Method for handling the simultaneous mobility of mobile hosts in infrastructure-based networks
US7319689B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2005 |
| Grant date | Jan 15, 2008 |
| Priority date | — |
| Expiry date | Jul 12, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/182
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In infrastructure-based networks devices often move from one attachment point in the network or a sub-network thereof to another attachment point. Communications sessions may be established between Mobile Hosts attached to such nodes. Communications sessions between nodes established using Session Initiation Protocol (SIP), Mobile Internet Protocol with Location Registers (MIP-LR) or Mobile Internet Protocol version 6 (MIPv6) may fail if there is simultaneous mobility of two Mobile Hosts in an ongoing communication session. Stationary binding update proxies and stationary location proxies are introduced into such communications networks in order to provide a solution to the problem of simultaneous mobility of Mobile Hosts. Specific implementation for SIP, MIP-LR and MIPv6 are provided. IN SIP networks, the SIP server for the mobile hosts acts as the stationary binding update proxy and the stationary location proxy. In MIP-LR networks, the Home Location Register (HLR) functions as the stationary binding update proxy and the intercepting is performed by the Foreign Agent or Advertisement Agent. In MIPv6 networks, the home agent of each the first and second mobile host functions as th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.