Invention Grant
- Patent Title: Offline radio maps for GNSS-denied areas
-
Application No.: US17128037Application Date: 2020-12-19
-
Publication No.: US11592517B2Publication Date: 2023-02-28
- Inventor: Lauri Aarne Johannes Wirola , Petri Rauhala , Marko Luomi
- Applicant: HERE GLOBAL B.V.
- Applicant Address: NL Eindhoven
- Assignee: HERE GLOBAL B.V.
- Current Assignee: HERE GLOBAL B.V.
- Current Assignee Address: NL Eindhoven
- Agency: Here Global B.V.
- Agent Jeffrey R. Moisan
- Main IPC: G01S3/02
- IPC: G01S3/02 ; G01S5/02

Abstract:
Disclosed is an approach to enable radio map download for Global Navigation Satellite System (GNSS)-denied areas. In particular, processor(s) (e.g., of positioning server(s)) could identify GNSS-denied area(s) in an initial radio map, the GNSS-denied area(s) being (i) one or more areas in which at least one GNSS signal is or was unavailable and (ii) a subset of a plurality of areas represented by the initial radio map. Subsequently, the processor(s) could generate a partial radio map representing radio data only for the GNSS-denied area(s) identified in the initial radio map, and could then transmit the partial radio map to a mobile device for storage at the mobile device. In this way, the mobile device could optimize resource usage and perform radio-based position estimations at least in the GNSS-denied area(s) that were identified.
Public/Granted literature
- US20220196784A1 OFFLINE RADIO MAPS FOR GNSS-DENIED AREAS Public/Granted day:2022-06-23
Information query