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Time synchronization method and device

A time synchronization and time technology, applied in the field of communication, can solve the problems of affecting the synchronization results and the large correction range of time difference, and achieve the effect of improving quality and stability

Inactive Publication Date: 2013-06-05
ZTE CORP
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  • Description
  • Claims
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Problems solved by technology

[0006] Aiming at the problem in the related art that the network clock is used to directly correct the time difference between the device and the network time source at one time, which may cause the time difference correction range to be too large and affect the synchronization result, the present invention provides a time synchronization method and means to solve at least the above problems

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Embodiment Construction

[0032] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0033] figure 2 is a flowchart of a time synchronization method according to an embodiment of the present invention. Such as figure 2 As shown, the method mainly includes the following processing:

[0034] Step S202: Obtain the time deviation between the network clock slave device and the network time source;

[0035] Step S204: gradually adjust the time deviation between the network clock slave device and the network time source.

[0036] In related technologies, the usual way to adjust the time deviation between the network clock slave device and the network time source is to perform a one-time correction based on the calculated time deviation, which may affect the quality of time synchroniza...

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Abstract

The invention discloses a time synchronization method and a device. According to the above method, the time deviation of a network clock from a device and a network time source is obtained; and the time deviation of the network clock from the device and the network time source is adjusted step by step. According to the technical scheme of the time synchronization method and the device, the effect that the reliability and the stability of time synchronization are improved is achieved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a time synchronization method and device. Background technique [0002] At present, there are many commonly used time synchronization methods, including: Precision Time Protocol (Precision Time Protocol, referred to as PTP), Network Time Protocol (Network Time Protocol, referred to as NTP), Global Positioning System (Global Positioning System, referred to as GPS) and other protocols and methods, the purpose of which is to synchronize the network time from the time of the device to the network time source. [0003] The synchronization result of the time synchronization protocol will eventually be issued and corrected on the device to correct the running time of the device. The usual way to correct the running time is to compare the time of the device with the time calculated by the time synchronization protocol, and then make the time of the device track the time calculated by t...

Claims

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Application Information

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IPC IPC(8): H04J3/06
CPCH04J3/06H04J3/0685
Inventor 王斌张君辉
Owner ZTE CORP
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