论文编号:XXLW117 论文字数:19085,页数:46

 摘要
 传输网作为各种业务网和业务的传送载体，是整个电信运营网络的基础。本文主要分析和讨论了本地同步数字体系（SDH）传输网络的现状，对分层式网络结构、环网络结构、设备配置中再生段的计算和网络同步问题，及其应用条件作了较为详尽的描述，并从实用的角度出发以XX市本地传输网为例介绍了如何对SDH网络进行规划和分析，并且对本地SDH传输网络的发展和规划作了深入浅出的论述，强调了传输网络规划在通信网建设中的重要性[1]。    论文介绍了XX市传输网的现状，并提出了网络规划的具体步骤。首先提出传输网规划建设的总体指导原则，在此基础上提出构建传输网的三个基本网络（管道网、光缆网和设备网）；其次在遵循上述原则的基础上，结合XX市的具体情况，给出该市传输网络规划的详细方法和过程，在规划方案中明确了关于传输汇聚点和汇聚层的关键作用；根据实际业务需求以及面向3G网业务的需要，明确了基于SDH的MSTP技术解决方式；最后，通过分析得出XX市传输网发展仍应采用基于SDH的MSTP技术，并且在ASON技术成熟后可以在核心骨干层采用MSTP OVER ASON或WDM OVER ASON，而在汇聚接入层仍以MSTP为主的结论。
 
 关键词　：同步数字体系;网络规划;自愈环;STM-N;MSTP.

ABSTRACT
 
 Transmission Network is the foundation of the whole Telecom Operation Netwok,as a transmission vector of Business Network and business. This paper anlyses and dicusses the status quo of local SDH Transmission Network, made a detailed description of the Hierarchical Network structure, Ring Network architecture, the computing problem of device configuration renewable paragraph , network synchronization and application conditions, at the same time, from a practical point of view to the local Transmission Network in XX City as an example to introduce how to SDH Network planning and analysis, and local SDH Transmission Network development and planning were discussed in simple terms, stressed the importance of Transmission Network planning in Communication Networks construction .
 The paper dicussed the status quo of Transmission Network in XX city , and proposed concrete steps to network planning.  First of all, proposed the overall guiding principles of the planning and construction of Transmission Network, in this based proposed methods of network planning and design and planning principles of three basic networks for the building  Transmission Network ( Pipeline Networks, Cable Networks and Equipment Networks)；the second, on the basis of the above-mentioned principles in combination with the specific circumstances of the city XX city, given the city a detailed planning methods and process in Transmission Network, in planning program cleared on the key role of aggregation point and the transmission convergence layerthe transmission; in accordance with the actual business needs, as well as business-oriented needs of 3G networks, cleared the solutions of the SDH-based MSTP technology; Finally, analysis of the development of XX city Transmission Network should be based on SDH technology of MSTP, and can be used in the core backbone layer MSTP OVER ASON or WDM OVER ASON when ASON technology is mature, and converged access layer is still the main conclusions of MSTP. 
 
Keywords: SDH planning networks, Self-Healing Ring, STM-N, Multi-Service Transport Platform
 
目 录
摘要 i
ABSTRACT ii
第1章  前言 1
§1．1 SDH传输网络背景 1
§1．2 SDH传输网络规划原则 1
第2章 SDH网络简介 2
§2．1 传送网络的发展历史 2
§2．2 SDH网络的工作方式 3
§2．3 SDH网络的特点 4
§2．4 SDH网络的拓朴 4
第3章SDH网络规划考虑因素 6
§3．1 业务层面 6
§3．2 网络层面 6
§3．3 自愈保护 6
3．3．1线性复用段保护方式 8
3．3．2二纤单向复用段保护环 9
3．3．3二纤双向复用段保护环 14
3．3．4四纤双向复用段保护环 14
3．3．5子网连接保护 14
3．3．6通道保护 14
§3．4 设备硬件（以华为公司产品为例） 13
§3．5 配套规划 13
第4章 SDH网络规划设计步骤 14
§4．1 当前网络信息收集 14
§4．2 增长预测 14
4．2．1分析现网结构 14
4．2．2 各层次带宽确定 15
4．2．3 各层次保护机制的选择 15
§4．3预算光功率与色散 17
§4．4 进行网络的冗余度和生存性计算 18
§4．5 设备选择 18
§4．6 网络同步设计 20
§4．7 公务设计 21
§4．8网络监控设计 21
第5章SDH网络规划实例 23
§5．1 XX区本地传输网络概况(出于信息安全具体地区不做说明) 23
§5．2网络承载的业务 23
5．2．1业务局向上的业务量分布 24
 §5．3节点上的业务终端 25
5．3．1节点上的终端业务量 26
5．3．2节点上的终端业务局向 26
§5．4网络资源分配与自愈保护 27
5．4．1保护子网链路总容量上的VC4服务层路径负荷 28
5．4．2保护子网链路总容量上的业务路径负荷 30
5．4．3自愈保护 32
第6章 某市XX区网络评估分析 32
§6．1业务提供能力与网络容量效率评估 32
§6．2拓扑分析及瓶颈链路识别 33
§6．3生存性评估 33
§6．4 离散业务评估 33
§6．5 结论 34
结束语 35
致谢词 36
参考文献 37

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