Title:
HIGH-PRECISION TIME SYNCHRONIZATION METHOD
Document Type and Number:
WIPO Patent Application WO/2019/169820
Kind Code:
A1
Abstract:
Provided by the present invention is a high-precision time synchronization method, which improves the traditional IEEE 1588 network time synchronization protocol and introduces periodic transmission time disturbance between any two nodes in a time synchronization network, wherein said disturbance may be achieved by changing the transmission path or by a transceiver using clocks of different frequencies to introduce clock phase disturbance. The described method may eliminate the correlation of multiple synchronization result errors, further compensate introduced disturbance by means of a method of statistical average, and reduce the synchronization errors caused by insufficient clock resolution of synchronous nodes. The present invention has obvious advantages over existing traditional time synchronization methods, such as IEEE 1588, and may achieve the time synchronization accuracy up to the nanosecond.
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Inventors:
HUA NAN (CN)
LUO RUIJIE (CN)
ZHENG XIAOPING (CN)
LUO RUIJIE (CN)
ZHENG XIAOPING (CN)
Application Number:
PCT/CN2018/095822
Publication Date:
September 12, 2019
Filing Date:
July 16, 2018
Export Citation:
Assignee:
UNIV TSINGHUA (CN)
International Classes:
H04J3/06
Foreign References:
| CN101465704A | 2009-06-24 | |||
| CN106452650A | 2017-02-22 | |||
| EP1720022A1 | 2006-11-08 |
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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