Location based determination to perform a ranging procedure
US8872701B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2011 |
| Grant date | Oct 28, 2014 |
| Priority date | — |
| Expiry date | Sep 3, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W60/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and systems are described for using location-based information to determine whether to perform a ranging procedure. A change in location of a device is identified. The identified change in location represents the distance the device has moved during an interval between ranging procedures. The identified change in location is analyzed to determine whether the change exceeds a threshold distance. If the change in location does not satisfy the threshold distance, a change in a signal quality metric of the device from the location associated with the previously performed ranging procedure to the current location is identified. The identified change in signal quality metric is analyzed to determine whether the change exceeds a threshold value. If the change in location of the device is less than the threshold distance and the change in the signal quality metric is less than the threshold value, the next scheduled ranging procedure is bypassed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.