Method and system for realizing self-compensation 1588 link asynchronous time delay

一种非对称性、自动补偿的技术，应用在时分多路复用系统、多路复用通信、电气元件等方向，能够解决耗费人力物力、降低时间同步质量、无法自动测量出非对称时延等问题，达到解决非对称性问题、节约人力物力成本的效果
CN102932905AInactive Publication Date: 2013-02-13ZTE CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZTE CORP
Publication Date
2013-02-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method and a system for realizing self-compensation 1588 link asynchronous time delay. The method comprises the steps of: measuring and calculating an asynchronous time delay value between an uplink and a downlink of a 1588 link; when the asynchronous time delay value exceeds a set synchronous offset range, carrying out asynchronous time delay compensation; or else, continuing 1588 normal time synchronization. With adoption of the method and the system disclosed by the invention, the asynchronous time delay can be corrected automatically so as to ensure the quality of 1588 time synchronization.
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Description

technical field

[0001] The invention relates to the technical field of 1588 clock network, in particular to a method and system for automatically compensating the asymmetric time delay of 1588 links. Background technique

[0002] With 3G (3 rd Generation, the third generation of mobile communication technology) with the rapid development of the network, the 1588 time synchronization protocol has received more and more attention and application in the communication network. Domestic and foreign operators continue to use the 1588 protocol for time synchronization, and gradually replace the time synchronization with GPS (Global Positioning System, Global Positioning System).

[0003] Such as figure 1 As shown, in 1588 time synchronization, the synchronization method is as follows:

[0004] Depend on figure 1 The following formula can be obtained:

[0005] A=t 1 -t 0 =Delay+Offset; (1)

[0006] B=t 3 -t 2 = Delay-Offset; (2)

[0007] Then according to the above formu...

Claims

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