Method and system for selecting and providing a relevant subset of wi-fl location information to a mobile client device so the client device may estimate its position with efficient utilization of resources
US9392407B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2015 |
| Grant date | Jul 12, 2016 |
| Priority date | — |
| Expiry date | Feb 20, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In one embodiment, when it is determined that one or more Wi-Fi positioning system (WPS) tiles that are necessary to estimate a location of a mobile client device are not present in a WPS tile store on the mobile client device, or are present in the WPS tile store on the mobile client device but out of date, one or more new WPS tiles are requested from a remote server. Each WPS tile is a set of Wi-Fi access point data for Wi-Fi access points within a bounded geographical region. The one or more new WPS tiles are received from the remote server, and are cached in the WPS tile store on the mobile client device. Subsequent to the caching, one or more further locations of the mobile client device are estimated autonomously from the remote server, utilizing Wi-Fi access point data in the WPS tile store.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.