Smooth handoff via state exchange in wireless networks
US7154868B1 · kind B1 · utility
67Cited by
1References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2002 |
| Grant date | Dec 26, 2006 |
| Priority date | — |
| Expiry date | Oct 19, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W80/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method for providing a handoff of a call from a mobile node. The call has associated state information. The call is established between the mobile node and a first RNN and the mobile node and a first PDSN. Thereafter, the mobile node roams and establishes a link between the mobile node and a second RNN. A second PDSN is selected to service the mobile node. A direct communication path is established between the first PDSN and the second PDSN.State information of the call is exchanged between the first PDSN and the second PDSN using the communication path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.