Low power positioning techniques for mobile devices
US9733361B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2014 |
| Grant date | Aug 15, 2017 |
| Priority date | — |
| Expiry date | Oct 7, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Techniques for managing power consumption of a Global Navigation Satellite System (GNSS) receiver of a mobile device are provided. These techniques include a method that includes deriving a GNSS search window for the GNSS receiver based on a position uncertainty (PUNC) and a time uncertainty (TUNC), selecting a GNSS search mode based on the GNSS search window and resources available for searching for signals from GNSS satellite vehicles (SVs), wherein an estimated power consumption associated with execution of a GNSS search associated with the GNSS search mode does not exceed a power consumption limit specified for the GNSS receiver conducting the GNSS search using the GNSS search mode, and estimating a position of the mobile device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.