Invention Grant
- Patent Title: Supporting a secure terrestrial transmitter based positioning
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Application No.: US15681532Application Date: 2017-08-21
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Publication No.: US10405292B2Publication Date: 2019-09-03
- Inventor: Nicolas Neubauer , David Falla Cepeda
- 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: Lempia Summerfield Katz LLC
- Main IPC: H04W64/00
- IPC: H04W64/00 ; H04B17/318

Abstract:
A device with transmitter broadcasts packets including a transmitter identifier via a radio interface with varying timings of transmissions. It determines a current timing of transmissions based on clock signals and a secret code, using a cryptographic function. A mobile device detects radio signals conveying such packets and performs measurements on the signals. It determines a currently used timing of transmissions, assembles a positioning request including the transmitter identifier, results of the measurements and an indication of the timing of transmissions, and transmits the request. A server receives the request. It generates for the transmitter an expected timing of transmissions using a cryptographic function, based on a signal of a master clock and based on a stored secret code assigned to the transmitter. It provides position information as trusted position information only in the case of a match between the indicated and the expected timing of transmissions.
Public/Granted literature
- US20190059068A1 SUPPORTING A SECURE TERRESTRIAL TRANSMITTER BASED POSITIONING Public/Granted day:2019-02-21
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