Telecommunications
US7640017B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 10, 2004 |
| Grant date | Dec 29, 2009 |
| Priority date | — |
| Expiry date | Apr 26, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W80/045
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention relates to apparatus for and methods of performing a binding procedure in respect of a mobile node in a foreign packet data network, the mobile node having roamed from a an home packet data network and having a home packet data protocol address, the method comprising the steps of: the mobile node sending its home packet data protocol address to a node of the network responsible for allocating packet data protocol addresses to mobile nodes for use in the foreign network (the allocating node); the allocating node allocating or participating in the allocation of a packet data protocol address to the mobile node; the allocating node receiving a packet data protocol address of a receiving node; and in dependence on the received home packet data protocol address, the receiving node packet data protocol address, and the allocated packet data protocol address, the allocating node sending or arranging for another network node to send a message to the receiving node, the message indicating a binding between the allocated packet data protocol and the home packet data protocol address of the mobile node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.