Clock synchronizing method and equipment

A technology of clock synchronization and clock synchronization information, applied in time division multiplexing systems, electrical components, multiplexing communications, etc., can solve the problems of frequency and phase fluctuations of downstream equipment, affecting the stability of clock synchronization networks, etc., to achieve security stable effect

Active Publication Date: 2011-10-19
ZTE CORP
View PDF4 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] From the above analysis, it can be seen that if the parent device selected by the downstream device does not lock the frequency or the phase is not

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Clock synchronizing method and equipment
  • Clock synchronizing method and equipment
  • Clock synchronizing method and equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] In order to realize in the clock synchronization network, to avoid the frequency and phase fluctuation of the downstream device caused by the selection of the faulty upstream device as the parent device tracking by the downstream device, which will affect the stability of the clock synchronization network, the embodiment of the present invention provides a clock Synchronize methods and devices.

[0026] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention, and in the absence of conflict, the present invention The embodiments and the features in the embodiments can be combined with each other.

[0027] Such as figure 2 As shown, it is a schematic diagram of the implementation flow of the clock synchronization method pro...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a clock synchronizing method and equipment, which is used for avoiding the frequency fluctuation and phase fluctuation of downstream equipments due to the tracking of selecting the failed previous equipment, thus ensuring the stability of the clock synchronizing network. The clock synchronizing method comprises the following steps that the clock transmission messages sent by all upstream equipment are received by the downstream equipment; according to the clock synchronizing information carried in the clock transmission message, the upstream equipment except those with unusual clock synchronization is selected as the previous equipment to be tracked when the corresponding upstream equipment having unusual clock synchronization is determined by the downstream equipment, or neglect the cock synchronizing information carried in the clock transmission messages sent by the upstream equipment with unusual clock synchronization is neglected, and the upstream equipment is selected from the all upstream equipment to be taken as the previous equipments to be tracked; and before the clock synchronization unusualness of the corresponding upstream equipment is determined, all upstream equipment is selected as the previous equipment so as to be tracked.

Description

technical field [0001] The present invention relates to the technical field of clock synchronization, in particular to a clock synchronization method and equipment. Background technique [0002] In the communication network, the clock synchronization network is an indispensable part, and different services have different requirements for synchronization. With the rapid development of the 3G network, there are two types of feasible technologies to realize the transmission of frequency and phase synchronization signals in the packet network: one is the synchronization technology based on the physical layer, such as the synchronous Ethernet technology of ITU-TG.8261; The second is packet-based synchronization technology, such as IEEE 1588 V2. SyncE can only support the transmission of frequency signals, not the transmission of phase signals, so the simple syncE solution is only suitable for scenarios that do not require phase synchronization requirements; IEEE 1588V2 is a prec...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04J3/06
CPCH04J3/0667
Inventor 赵洪广瞿艳霞蔡磊
Owner ZTE CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap