Title:
POWER SAVING METHODS FOR COMMUNICATION IN LOCALIZATION SYSTEMS
Document Type and Number:
WIPO Patent Application WO/2019/074048
Kind Code:
A1
Abstract:
Systems and methods are provided and include a control module (8) that establishes a secure wireless communication connection with a portable device (20). A sensor receives connection information about the secure wireless communication connection, eavesdrops on the secure wireless communication connection based on the connection information, measures signal information of a communication signal (30) sent from the portable device (20) to the control module (8) during the secure wireless communication connection, compares the measured signal information with wakeup criteria information, and reports the measured signal information to the control module (8) in response to the measured signal information satisfying the wakeup criteria. The control module (8) receives the measured signal information from the sensor and determines a location of the portable device (20) based on the measured signal information. The measured signal information includes at least one of received signal strength indicator information, angle of arrival information, and time difference of arrival information.
Inventors:
GOLSCH KYLE (US)
SUTE STEVEN (US)
ATENCIO PETER (US)
SUTE STEVEN (US)
ATENCIO PETER (US)
Application Number:
PCT/JP2018/037906
Publication Date:
April 18, 2019
Filing Date:
October 11, 2018
Export Citation:
Assignee:
DENSO INT AMERICA INC (US)
DENSO CORP (JP)
DENSO CORP (JP)
International Classes:
G07C9/00; B60R25/24; H04W4/40; H04W4/80; G01S5/02
Foreign References:
| US20140188348A1 | 2014-07-03 | |||
| FR3023314A1 | 2016-01-08 | |||
| EP0965710A2 | 1999-12-22 | |||
| US20170018128A1 | 2017-01-19 |
Other References:
None
Attorney, Agent or Firm:
JIN Shunji (JP)
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