Method and system for automatic seamless mobility
US8447303B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2008 |
| Grant date | May 21, 2013 |
| Priority date | — |
| Expiry date | Feb 11, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W8/30
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A telecommunication system and method for automatically and seamlessly switching voice calls on a wireless mobile device between different wireless network services during the same conversation without user interaction and without being noticeable to the parties on the call. For example, a voice call at a mobile device using the services of a wireless wide area network (e.g., GSM/GPRS cellular network) may be switched over to a wireless local area network (e.g., 802.11 wireless network), and vice versa, while the call is in progress and without any input from the parties on the call. The system and method also provide a mechanism for maintaining a voice over Internet Protocol (VoIP) call while the mobile device moves between wireless access points (AP) and has automatic reconnection in case there is a dropped call.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.