Wireless handoffs between multiple wireless networks
US8811991B2 · kind B2 · utility
169Cited by
9References
52Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2006 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | May 23, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W92/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A wireless communications device is disclosed. The wireless communications device is configured to support a call over a cellular network or an IP network to a remote communications device. The wireless communications device is further configured to handoff the call between the cellular network and the IP network. An Interworking Function (IWF) is configured to maintain a call between a wireless communications device and a communications device as the wireless communications device is handed off between a cellular network and an IP network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.