DSL线路速率分析与工程应用  

DSL line rate analysis and engineering application

作　　者：余辰东[1] 

机构地区：[1]中兴通讯股份有限公司上海研发中心,上海201203

出　　处：《电信工程技术与标准化》2014年第9期40-44,共5页Telecom Engineering Technics and Standardization

摘　　要：DSL作为宽带接入的主要方式,对用户速率要求日益严格。通过梳理不同宽带接入典型场景,比较其实现区别,总结出用户环路是影响DSL速率的关键因素。通过研究用户环路线路特性,总结了DSL线路基本要求。依据上述因素归纳了与线路速率相关的DSL重要参数及其之间关系。结合工程应用提出了DSL速率提升方法,并通过故障实例进行了探讨。As the primary way of broadband access, the requirements of user rate become more stringent for DSL.Through combing the typical scenarios,we compare the distinction of realization from different scenarios,the subscriber loop as the key factor affecting the DSL rate is reported. By studying the characteristicsof the subscriber loop line, this paper summaries the basic requirements of DSL line. Based on the abovefactors, it induces the important DSL parameters infl uencing the line rate and the relationship amongthem. Combined with engineering application, it raises the method to enhance the DSL rate and havecarried on the discussion through the fault instance.

关 键 词：数字用户环路 线路速率 线路噪声 载波服务区 

分 类 号：TN915.6[电子电信—通信与信息系统]