Title:
SYNCHRONOUS SCANNING TERRESTRIAL NETWORKS FOR MEASUREMENTS FOR CROWDSOURCING AND POSITIONING
Document Type and Number:
WIPO Patent Application WO/2018/022241
Kind Code:
A3
Abstract:
A mobile device synchronously scans different terrestrial networks for positioning measurements to align the scans in time. With minimal time difference between the scans, the positioning measurements from the different terrestrial networks may be used for crowdsourcing or position determination. The mobile device may synchronously scan a wireless wide area network (WWAN) and a local area wireless network so that positioning measurement derived from the scans are aligned in time. A local area wireless network is, e.g., a wireless local area networks (WLANs) or wireless personal area network (WPANs) but does not include cellular networks or satellite networks. The scans may be scheduled at a hardware level to ensure tight synchronization with near-zero time difference between the scans. Alternatively, the scans may be synchronized at a software level with only scans that occur within a time difference threshold from each other are used for crowdsourcing or positioning.
Inventors:
PON RAYMAN (US)
DO JU-YONG (US)
DO JU-YONG (US)
Application Number:
PCT/US2017/039716
Publication Date:
March 08, 2018
Filing Date:
June 28, 2017
Export Citation:
Assignee:
QUALCOMM INC (US)
International Classes:
G01S5/02
Domestic Patent References:
| WO2011016804A1 | 2011-02-10 | |||
| WO2015070052A1 | 2015-05-14 | |||
| WO2002010987A1 | 2002-02-07 |
Foreign References:
| EP2578031B1 | 2014-04-16 | |||
| US20130281110A1 | 2013-10-24 |
Attorney, Agent or Firm:
HALBERT, Michael J. (US)
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