Inter-access network handover
US8855083B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2009 |
| Grant date | Oct 7, 2014 |
| Priority date | — |
| Expiry date | Apr 10, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W80/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a wireless network environment comprising first and second packet-switched access networks, each access network using a tunnelling-type micro-mobility protocol and a Quality of Service (QoS) routing protocol to route packet data to and from mobile nodes attached thereto, and each access network comprising an access router to which a mobile node may attach, a mobility agent with which said mobile node may register and a gateway, a method of facilitating network layer handover of said mobile node from said first access network to said second access network, said mobile node registered in said first access network with a serving mobility agent, which method comprises the steps of: said mobile node receiving a router advertisement from said second access network, which router advertisement comprises a network-layer address of a target mobility agent in said second access network with which said mobile node may register; and said mobile node forwarding said network-layer address to said serving mobility agent, whereby said serving mobility agent may communicate with said target mobility agent to facilitate network-layer handover of said mobile node to said second access network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.