【作者】 余颖；

【导师】 杨放春；

【作者基本信息】 北京邮电大学 ， 计算机科学与技术， 2006， 硕士

【摘要】 下一代网络是一个能够提供包括语音、视频、图像和数据等多种业务在内的综合开放网络。以软交换技术为核心的下一代网络已经成为目前国内外网络界的研究热点之一。 软交换网络构建于IP之上，而且实现了业务／控制与传送／接入的分离，跨区域成为软交换的一个重要特征，复合区域管理正是针对软交换的这一特征引入的管理机制。软交换中的号码分析和路由作为通信过程中必不可少的环节，必须支持这一重要特征，本文的主要工作就是设计和实现支持复合区域管理的软交换中号码分析和路由功能。 通过研究软交换网络的结构特点，论文在软交换中引入了运营区域和工作组的概念，并提出了基于逻辑运营区域管理和工作组管理的复合区域管理模式。这种多层次逻辑管理机制，从用户管理和资源管理的角度为软交换管理提供了更加灵活的方式。以传统电话网中号码分析和路由作参照，论文详细分析了引入复合区域管理机制后软交换中号码分析和路由需要完成的功能，进而针对这些功能要求，提出了基于“分析树”的号码分析设计方案和基于策略的路由选择方案，并详细阐述了实现过程和测试结果，证明了号码分析和路由模块设计思想的可行性。 论文的主要创新点在于针对软交换跨区域的特征，提出了适合软交换的复合区域管理模式。基于这种新的管理模式，对号码分析和路由的功能需求进行了深入分析，并通过分析的结果提出了软交换中号码分析和路由的设计方案。更多还原

【Abstract】 The Next Generation Network (NGN) is an integrated and open network, which can provide multiple services, such as voice, video, image and data services, over a common infrastructure. As the core control device in NGN, Softswitch has become the hot spot in the domain of telecommunication.The Softswitch is based on IP, and realizes not only the separation of service logic and call control functions, but also the separation of call control and bear connection functions, cross-zone has become one of the important characters of Softswitch. Composite zone management is just for this. As the essential part in communications, number analysis and routing selection must provide support for it. This paper mainly focuses on the design and implementation of number analysis and routing in composite zone management enabled Softswitch.Having analyzed the characters of Softswitch network, the paper presents the concept of logic zone and logic centrex, and proposes the model of composite zone management, which is based on the management of logic zone and logic centrex. The composite zone management provides a more flexible way for Softswitch. Compare with the function of number analysis and routing in traditional telephone network, the paper analyzes the function of the number analysis and routing in composite zone management enabled Softswitch, then brings forward the way for the design of the number analysis based on analysis tree and the design of the Policy Routing. In the last part, the paper describes the implementation and testing to prove the feasibility of the design and implementation method concerning the number analysis & Routing in Softswitch.The innovation of this paper is the presentation of composite zone management, which is more customize for Softswitch. Based on this kind of management model, the paper analyzes the function of number analysis & Routing, and brings forward the design of number analysis and routing in Softswitch based on the result of the analysis.更多还原