Title:
ERROR ADJUSTMENT METHOD AND SYSTEM FOR TIME SYNCHRONIZATION
Document Type and Number:
WIPO Patent Application WO/2021/190080
Kind Code:
A1
Abstract:
Disclosed are an error adjustment method and system for time synchronization, which relate to the technical field of communications. The method comprises: a source-end adjustment procedure, and the source-end adjustment procedure comprises the following steps: obtaining a first time difference Δt1 according to a signal time difference between a transmitted signal and a received signal that is fed back; obtaining a second time difference Δt2 according to a signal time difference between the current transmitted signal and a received signal that is fed back and processed by means of a timestamp correction algorithm; according to Δt1 and Δt2, obtaining a time difference value Δta to be adjusted of a source end; and according to Δta, using the timestamp correction algorithm to perform time error adjustment. In the present invention, measurement is performed on the basis of a signal timestamp of a source end or a destination end, and a time delay situation is corrected, thereby reducing the influence of a static error in a time synchronization process.
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Inventors:
CHEN CHI (CN)
CHEN ZHAOHUI (CN)
CHEN ZHAOHUI (CN)
Application Number:
PCT/CN2021/070738
Publication Date:
September 30, 2021
Filing Date:
January 08, 2021
Export Citation:
Assignee:
FIBERHOME TELECOMMUNICATION TECH CO LTD (CN)
International Classes:
H04J3/06
Foreign References:
| CN111478744A | 2020-07-31 | |||
| CN101958745A | 2011-01-26 | |||
| CN104602141A | 2015-05-06 | |||
| CN109787703A | 2019-05-21 | |||
| US9912426B1 | 2018-03-06 |
Attorney, Agent or Firm:
WUHAN ZHIQUAN PATENT AGENT, LLP. (CN)
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