Time correction method, device and system and storage medium

A technology of time correction and the first time, which is applied in the field of communication, can solve the problems of large forwarding delay of switching chips, unstable path delay, and inaccurate time information, etc.

Active Publication Date: 2020-07-07
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the switch chip has the problem of relatively large forwarding delay and unstable path delay
Therefore, it will lead to the problem of inaccurate time information transmitted across business sub-frames

Method used

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  • Time correction method, device and system and storage medium
  • Time correction method, device and system and storage medium
  • Time correction method, device and system and storage medium

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Embodiment Construction

[0035] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.

[0036] The present application provides a time correction method, device, system and storage medium, which can alleviate the problem of inaccurate time information transmitted between cross-service subracks in the prior art, and improve the accuracy of time information transmitted between cross-service subracks sex.

[0037] First, a t...

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PUM

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Abstract

The invention relates to a time correction method, device and system and a storage medium, and the method comprises the steps: obtaining a first time synchronization message which carries a time synchronization timestamp and a preset code; recording a first timestamp corresponding to the moment when the preset code is detected, and deleting the preset code in the first time tick message to obtainan original time tick message; extracting a time synchronization timestamp in the original time synchronization message; and correcting the timestamp of the timestamp counter by using the time synchronization timestamp and the first timestamp, so that the timestamp of the timestamp counter and the timestamp of the timestamp counter sending the first time synchronization message have the same valueat the same moment. According to the method, the problem that the time information transmitted between the cross-service sub-frames is inaccurate in the prior art can be relieved, and the accuracy ofthe time information transmitted between the cross-service sub-frames is improved.

Description

technical field [0001] The present application relates to the communication field, and in particular to a time correction method, device, system and storage medium. Background technique [0002] With the further increase of the operator's demand for subrack cross-connection capacity, the operator's demand for high-precision time transfer between cross-service subracks is becoming stronger and stronger. In a traditional single subrack, the main control board transmits time information to each service board through the same 1pps backplane wiring. In the environment of cross-service subracks, in order to ensure the business cross-communication between business sub-racks and the same local time stamp of each business sub-rack, the transmission of high-precision time information between sub-racks is a function that must be implemented . [0003] In order to meet the requirement of high-precision time transfer between service subracks, in the prior art, time stamp information is...

Claims

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Application Information

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IPC IPC(8): H04J3/06H04L12/26
CPCH04J3/0661H04J3/0605H04J3/0682H04L43/16H04J3/06
Inventor 毕英明吴琼
Owner ZTE CORP
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