Method for improving location accuracy in multi-channel wireless networks
US9445226B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2014 |
| Grant date | Sep 13, 2016 |
| Priority date | — |
| Expiry date | May 5, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S5/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present disclosure discloses a method and network device for improving location accuracy in multi-channel wireless networks. Specifically, to coordinate with other Access Points (APs) and improve location accuracy of client devices, each access point can (a) obtain a schedule of another neighboring AP; (b) switch to the operating channel of the neighboring AP at a scheduled time for communication exchanges between the neighboring AP and the client device, (c) listen to the communication exchanges between the neighboring AP and the client device; (d) collecting signal samples, e.g., signal strength associated with messages originated from the client device; and (e) send the report to the location engine to allow the location engine collect more signal samples associated with the client device, thereby more accurately determine the location of the client device; etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.