Wireless local communication systems and methods from WAN fallback
US9144103B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 30, 2013 |
| Grant date | Sep 22, 2015 |
| Priority date | — |
| Expiry date | Nov 29, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method, a mobile device, and a wireless system provide wireless local communication systems and methods from Wide Area Network (WAN) fallback allowing proximate users to maintain connectivity therebetween while WAN connectivity is lost. The wireless local communication systems and methods leverage access point credentials for the WAN to set up local wireless communication amongst the mobile devices when WAN connectivity is lost or when commanded to do so. Local mobile device users can maintain communication such as in a talkgroup while WAN connectivity is disrupted or undesired. The systems and methods include an algorithm where a first mobile device identifies the loss of WAN connectivity and becomes a WAN access point for other proximate mobile devices which share common preconfigured credentials. Subsequent mobile devices which detect the loss of WAN connectivity can associate with the AP thereby maintaining local communication using local wireless connectivity techniques.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.