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Title:
SYNCHRONIZATION METHOD AND INFORMATION EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2021/111494
Kind Code:
A1
Abstract:
This synchronization method includes: a first step for transmitting, to a communication device that time-synchronizes with a base station device connected to a mobile body communication network, an inquiry command, a plurality of times, for requesting time information represented by a first unit lower in accuracy than time synchronization realized by the communication device; a second step for determining a timing of updating the time information acquired in response to the inquiry command; a third step for determining the next timing of transmitting the inquiry command on the basis of the timing of updating the time information; and a fourth step for acquiring time information with accuracy higher than that in the first unit on the basis of time information acquired in response to the inquiry command transmitted in the third step.

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Inventors:
TERUHI SHIGERU (JP)
YOSHIZAWA KENTO (JP)
AKABANE KAZUNORI (JP)
Application Number:
PCT/JP2019/046982
Publication Date:
June 10, 2021
Filing Date:
December 02, 2019
Export Citation:
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Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G06F13/00
Foreign References:
JP2013130562A2013-07-04
JP2014202734A2014-10-27
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (JP)
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