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Title:
WIRELESS COMMUNICATION SYSTEM, WIRELESS TERMINAL, AND TIME SYNCHRONIZATION METHOD
Document Type and Number:
WIPO Patent Application WO/2017/200043
Kind Code:
A1
Abstract:
A time synchronization system comprises a first wireless device and a second wireless device. A wireless unit of the first wireless device wirelessly transmits timing information and time information separately, the time information relating to a transmission time which is the time at which the timing information was transmitted, as acquired from a first clock. A wireless unit of the second wireless device receives the wirelessly transmitted timing information and time information separately. A correction unit of the second wireless device corrects a second clock on the basis of a reference time which is a time indicated by the second clock when the wireless unit received the timing information, and a transmission time obtained from the time information.

Inventors:
TERUHI Shigeru (9-11 Midori-cho 3-chome, Musashino-sh, Tokyo 85, 〒1808585, JP)
KOBAYASHI Mamoru (9-11 Midori-cho 3-chome, Musashino-sh, Tokyo 85, 〒1808585, JP)
AKABANE Kazunori (9-11 Midori-cho 3-chome, Musashino-sh, Tokyo 85, 〒1808585, JP)
Application Number:
JP2017/018678
Publication Date:
November 23, 2017
Filing Date:
May 18, 2017
Export Citation:
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Assignee:
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (5-1 Otemachi 1-chome, Chiyoda-ku Tokyo, 16, 〒1008116, JP)
International Classes:
H04L7/00; G04G5/00; G04R20/26; H04W56/00
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (1-9-2, Marunouchi Chiyoda-k, Tokyo 20, 〒1006620, JP)
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