CLOCK SYNCHRONIZATION METHOD AND DEVICE IN DISTRIBUTED SYSTEM, AND SYSTEM

Title:

CLOCK SYNCHRONIZATION METHOD AND DEVICE IN DISTRIBUTED SYSTEM, AND SYSTEM

Document Type and Number:

WIPO Patent Application WO/2022/041936

Kind Code:

A1

Abstract:

The present application discloses a clock synchronization method in a distributed system, and a related device. The distributed system comprises a plurality of nodes, the plurality of nodes comprising a master node and a plurality of slave nodes. The master node acquires a plurality of local clock offset values, wherein each local clock offset value among the plurality of local clock offset values indicates a clock offset between two nodes in the distributed system; the master node determines, according to the plurality of local clock offset values, a global clock offset value of a target slave node relative to the master node, and sends the global clock offset value to the target slave node; and the target slave node acquires a clock reference value of a local clock, and then performs clock synchronization according to the clock reference value and the global clock offset value. According to the solution provided in the embodiments of the present application, global error sharing can be realized by determining a global clock offset value by means of a master node, which facilitates improving the accuracy of clock synchronization of each node. In the present application, the clock synchronization accuracy can reach 1 microsecond.

Inventors:

WANG JIANG (CN)
WANG RUI (CN)
ZHOU ZHAOQI (CN)

Application Number:

PCT/CN2021/099640

Publication Date:

March 03, 2022

Filing Date:

June 11, 2021

Export Citation:

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Assignee:

HUAWEI TECH CO LTD (CN)

International Classes:

H04J3/06

Foreign References:

CN106301653A	2017-01-04
CN111585683A	2020-08-25
CN106685564A	2017-05-17
CN110505683A	2019-11-26
CN104158647A	2014-11-19
US20180287725A1	2018-10-04
CN202010906862A	2020-08-31

Other References: