Title:
TIMESTAMP JITTER COMPENSATION METHOD AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/004005
Kind Code:
A1
Abstract:
The present invention relates to the field of time synchronization, and disclosed are a timestamp jitter compensation method and system. The method is applicable to a packet that has a timestamp. The method comprises the step of: a receiving end compensates for the timestamp of a current packet according to a sending time interval between the current packet and a previous packet and a receiving time interval between the current packet and the previous packet. In the present invention, the timestamp of the current packet is compensated and corrected by means of the sending time interval and the receiving time interval of two adjacent packets. That is, delay jitter and time synchronization jitter are prevented by means of the sending time interval and receiving time interval, which not only significantly improves clock synchronization accuracy and effectively reduces the impact of link delay jitter on synchronization stability, but also does not need to take into consideration the location and clock frequency of a timestamp record, i.e. hardware does not need to be improved.
Inventors:
CHEN CHI (CN)
WU QIAN (CN)
WU QIAN (CN)
Application Number:
PCT/CN2019/124990
Publication Date:
January 14, 2021
Filing Date:
December 13, 2019
Export Citation:
Assignee:
FIBERHOME TELECOMMUNICATION TECH CO LTD (CN)
WUHAN FISILINK MICROELECTRONICS TECH CO LTD (CN)
WUHAN FISILINK MICROELECTRONICS TECH CO LTD (CN)
International Classes:
H04J3/06; H04W56/00
Domestic Patent References:
| WO2019036943A1 | 2019-02-28 |
Foreign References:
| CN101252429A | 2008-08-27 | |||
| CN108632105A | 2018-10-09 | |||
| CN105680969A | 2016-06-15 |
Attorney, Agent or Firm:
WUHAN ZHIQUAN PATENT AGENT, LLP. (CN)
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