Transmitted clock implementing apparatus and method

A technology of transparent clock and implementation method, which is applied in the field of communication, can solve the problems of insufficient precision of data clock transparent transmission, unstable fluctuations, etc., and achieve the effect of stable acquisition method, high precision, and improved clock synchronization accuracy

Inactive Publication Date: 2009-05-06
ZTE CORP
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AI Technical Summary

Problems solved by technology

[0007] Considering the problems of insufficient precision, instability and large fluctuations in the transparent transmission of the 1588 protocol data clock in the related art, the present invention

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  • Transmitted clock implementing apparatus and method
  • Transmitted clock implementing apparatus and method
  • Transmitted clock implementing apparatus and method

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[0029] Functional Overview

[0030] Considering the problems of insufficient accuracy, instability, and large fluctuations of the 1588 protocol data clock transparent transmission existing in the related art, the embodiment of the present invention proposes a device and method for implementing a transparent transmission clock, wherein a hardware device is used to obtain data The residence time information in the switching node, and the time information carried in the data is corrected according to the residence time information, which can effectively realize the data transparent transmission clock, and the acquired residence time information has high accuracy and acquisition methods stable.

[0031] Before describing the embodiments of the present invention, the 1588 clock synchronization network will be described first. figure 1 Shows the network structure of 1588 clock synchronization according to related technologies, such as figure 1 As shown, the network is composed of a se...

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Abstract

The invention discloses a realizing device of a penetration clock, and a method thereof. The device is composed of a clock module, a data identification module and a data modification module, wherein the data identification module and the data modification module are respectively connected with the clock module which is used for providing clock information for the data identification module and the data modification module; the data identification module is used for receiving data and obtaining current time information from the clock module; the data modification module is connected with the data identification module, and is used for adding the positive value or the negative value of the current time information with time information carried in data according to the output direction of the data and outputting the added time information and the data. Because of the invention, time information of the data residing in an exchange node is obtained by a hardware device, and the time information is modified according to the residency time information. The invention can effectively realize the penetration clock of the data, and has the advantages that the information accuracy of the obtained residency time information is high, and the obtaining form is stable.

Description

technical field [0001] The present invention relates to the communication field, in particular to a device and method for implementing a transparent transmission clock. Background technique [0002] At present, network technology has been developed. Among them, Ethernet technology has gradually been widely used in many fields due to its openness, wide application and low price, such as the communication field of commercial computers and the field of process control. Information management and communication at the middle and upper levels. [0003] In distributed Ethernet, clock synchronization technology is one of the key technologies in Ethernet technology, and the clock synchronization problem directly affects the real-time performance of network communication. The IEEE1588 standard is a clock synchronization solution in Ethernet, and its basic function is to keep other clocks in the distributed network synchronized with the most accurate clock. The IEEE1588 standard defi...

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Application Information

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IPC IPC(8): H04L7/00H04L12/28
CPCG06F1/12H04J3/0682H04L43/106H04J3/0658H04J3/0673H04J3/0638H04J3/0661H04L43/0852H04J3/0667
Inventor 郭欣翟红健周昶陈红旗
Owner ZTE CORP
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