Highly scalable, lower precision idle mode locating method for wireless devices
US8509822B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2007 |
| Grant date | Aug 13, 2013 |
| Priority date | — |
| Expiry date | Jun 12, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/20
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods of determining and providing location information as to the whereabouts of a wireless device are disclosed which have less geographical precision that those based on GPS or triangulation algorithms, but which are much more scalable, efficient and less costly. The methods make use of SMS paging and in particular obtain cell and cell sector information from a wireless device from a response message to an SMS page to the device. The cell and cell sector is converted to user-friendly geographical information such as an address or name of a building using a database correlating cell sectors to landmarks, location or addresses, and this user-friendly information is returned to the requestor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.