1588v2在电信网应用的标准化进程  

Standardization of 1588v2 for Application in Telecommunication Networks

作　　者：宿飞[1] 何力[1] 李争齐[1] 

机构地区：[1]中兴通讯股份有限公司,广东深圳518055

出　　处：《中兴通讯技术》2011年第4期52-57,共6页ZTE Technology Journal

摘　　要：文章介绍了1588v2在电信网领域应用的背景、需求和主要标准组织ITU-T的相关工作进展,包括频率同步应用和时间同步应用。通过分析目前1588v2电信应用规范中的热点问题,如影响1588v2频率恢复性能的网络分组延时变化(PDV)指标、1588v2端到端频率传送的应用场景和协议规范,提出1588v2在电信网络部署的可靠性、可管理维护等特点和基本思路,并对未来标准化需要解决的问题进行总结。This article introduces the requirements of 1588v2 for application in telecommunication networks and discusses 1588v2 standardization in the ITU-T with reference to frequency and time/phase synchronization.Issues affecting the application of 1588v2 include network Packet Delay Variation（PDV） limits（which impact 1588v2 frequency recovery）,and application scenarios and specifications for 1588v2 end to end frequency transmission.This paper also discusses the characteristics and basic thought of 1588v2 in telecommunications deployment.Problems arising during standardization are discussed in conclusion.

关 键 词：精确定时协议 1588v2 网络分组延时变化 全球导航卫星系统 

分 类 号：TN915.02[电子电信—通信与信息系统]