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A synchronization method, device and system

A technology for equipment and time synchronization, applied in the field of communications, can solve the problem of high equipment deployment costs, and achieve the effects of reducing intermediate transmission network elements, improving stability, and reducing costs

Active Publication Date: 2017-10-10
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a synchronization method, equipment and system to solve the problem of high equipment deployment costs

Method used

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  • A synchronization method, device and system
  • A synchronization method, device and system
  • A synchronization method, device and system

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0022] The synchronization method provided by the embodiment of the present invention, such as figure 1 shown, including the following steps.

[0023] S101. The switch node acquires synchronization time from the master control node.

[0024] Optionally, before this step, the master control node and the GPS connected to it perform time synchronization through a phase-locked loop, so as to obtain a synchronized time.

[0025] S102. The switching node sends the sync...

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Abstract

Embodiments of the present invention provide a synchronization method, device, and system, which relate to the communication field and can reduce device deployment costs and improve device synchronization stability. The method includes: a switching node acquires synchronization time from a master control node; the switching node sends the synchronization time to each controlled node respectively connected to the switching node, so that each controlled node can communicate with the master control node The nodes perform time synchronization.

Description

technical field [0001] The present invention relates to the communication field, in particular to a synchronization method, device and system. Background technique [0002] GSM (global system for mobile communications, Global System for Mobile Communications), UMTS (universal mobile telecommunications system, Universal Mobile Communications System), LTE (long termevolution, long-term evolution) require frequency synchronization and time synchronization between base stations for service timing and positioning function, optional frequency synchronization methods include synchronous Ethernet, E1 line clock (30-channel pulse code modulation in Europe is referred to as E1), 1588V2 (precise clock synchronization protocol standard for network measurement and control systems), GPS, etc., optional Time synchronization methods include 1588V2, GPS, etc. [0003] In the prior art, each base station needs to install a GPS device to obtain time and frequency information using GPS, and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W56/00
CPCH04W56/002H04J3/00H04J3/0667H04W56/00H04W56/0015
Inventor 马书涛
Owner HUAWEI TECH CO LTD