Title:
POSITIONING SYSTEM, POSITIONING METHOD, AND RECORDING MEDIUM
Document Type and Number:
WIPO Patent Application WO/2020/045206
Kind Code:
A1
Abstract:
In order to derive the position of communication device even when it is difficult to derive the position of the communication device using GPS and radio waves in an allocated frequency band, this positioning system is provided with a reception processing unit for deriving second frequency band quality information, which is information representing the quality of second frequency band radio waves received from a second frequency band communicator which emits the second frequency band radio waves, which are radio waves in a second frequency band, being a frequency band that does not overlap a first frequency band allocated for radio communications performed by the communication device, and a deriving unit for deriving and outputting second frequency band position information, which is information representing the position of the communication device derived by means of the second frequency band quality information relating to each of three or more second frequency band communicators, wherein the position of at least the reception processing unit among the reception processing unit and the deriving unit lies within the communication device.
Inventors:
AOYAMA AKIO (JP)
Application Number:
PCT/JP2019/032732
Publication Date:
March 05, 2020
Filing Date:
August 22, 2019
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
G01S5/14
Foreign References:
| JP2003075164A | 2003-03-12 | |||
| JP2011133331A | 2011-07-07 | |||
| JP2018026643A | 2018-02-15 | |||
| US20160057577A1 | 2016-02-25 | |||
| JPH10239416A | 1998-09-11 | |||
| JP2017127015A | 2017-07-20 | |||
| JP2018160680A | 2018-10-11 |
Other References:
See also references of EP 3845921A4
Attorney, Agent or Firm:
SHIMOSAKA Naoki (JP)
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