Location inference using radio frequency fingerprinting
US7945271B1 · kind B1 · utility
102Cited by
11References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2007 |
| Grant date | May 17, 2011 |
| Priority date | — |
| Expiry date | Nov 18, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W64/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for inferring location of a mobile device is provided. A radio frequency fingerprint is taken for a mobile device, wherein the radio frequency fingerprint includes cell tower data and cell sector data that includes a cell sector through which the mobile device is not communicating. Whether the radio frequency fingerprint matches a previous radio frequency fingerprint associated with a location fix is determined. A location fix technology is executed for the mobile device in response to a determination that the radio frequency fingerprint does not match the previous radio frequency fingerprint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.