E911 location reporting without PSAP support
US8126423B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2006 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Jan 29, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/66
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A wireless communications device and network having the ability to detect when a call session with a public service access point (PSAP) has not transferred location information for the wireless device to the PSAP. In on embodiment, the detection means includes a location request timer (LRT), which is started when the emergency call is initiated. If the LRT expires before a request for location information is received by the wireless communications device, the wireless device concludes that the PSAP does not have the location information. In another embodiment the wireless network determines the PSAP does not have location information without a timer. The location information is then presented to a caller on the wireless device, which allows the caller of the wireless device to relay the information to a human PSAP operator. The location information may also be provided to a human PSAP operator in a automated manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.