【作者】 李欣；

【导师】 邹华；

【作者基本信息】 北京邮电大学 ， 计算机科学与技术， 2007， 硕士

【摘要】 随着网络体系结构的演变和电信业务需求的不断发展，传统网络向下一代网络的演进已成为人们的共识。开放与融合是下一代网络的关键字，而屏蔽底层异构网络，向上层提供统一的业务接口，则是下一代网络的重要目标之一。因此，业务生成已成为下一代网络的关键技术，而能否快速高效地生成和部署个性化丰富多彩的增值业务将是下一代网络能否成功的核心问题。本文希望在下一代网络业务生成环境中引入业务能力融合的概念，从业务能力特征上进一步充实电信领域，从而拓宽电信业务的思路，并缩短个性化、定制业务的开发周期。本文包括三个部分。第一部分首先简要说明了本项目的背景、国内外研究现状，其中着重介绍了北京邮电大学网络与交换技术国家重点实验室在承担863项目“支持多媒体和移动业务的软交换系统”过程中实现的基于Parlay API和业务构件技术的业务生成环境，本文所做的主要工作都是基于该系统之上。其次，介绍了下一代网络和业务支撑环境的基本概念和发展状况。最后，对下一代业务生成技术的国内外研究现状进行了简单的介绍，包括开放式业务开发接口Parlay API、SIP Servlet，以及基于业务构件的业务生成技术，并对各种技术的特点进行了粗略的分析。第二部分提出了业务能力融合的概念，并阐述了能力融合对当前业务生成方式的影响。而后，针对业务能力融合所需实现的两个关键模块SIP Servlet构件化与WSDL2ACU模块和进行了深入地研究与分析，以达到将电信领域SIP协议以及Web服务能力特征引入当前业务生成环境的目的。接着，文章对已实现的模块WSDL2ACU进行了业务测试，并客观分析了测试结果，提出了当前的不足。最后，本文对研究生阶段的研究工作进行了总结，针对系统的缺陷提出了进一步的研究计划。更多还原

【Abstract】 Along with the evolvement of network system structure and the development of telecommunication service requirement, the tendency of Next Generation Network (NGN) in place of traditional network has been increasingly clear and distinct. Open and convergence are the two key words of NGN, while shielding the difference of the underlying network details and providing uniform service interface for application layer are the most important targets of NGN. Therefore, service creation has become one of the most essential technologies. People have soberly realized that the fast and effective creation and deployment of value-added service is the core problem that whether NGN can be successful. This paper is try to raise the concept of service capability convergence in SCE, in order to bring new service capabilities to telecommunication domain, open up ways of service creation, and finally decrease the customized service development cycle.The paper is composed of three parts. The first part gives a brief introduction to the background, the research progress recently, and mainly introduces SCE which is based on service component and Parlay API developed by State Key Laboratory of Network and Switching Technology of Beijing University of Posts and Telecommunications in the project of national 863 Program named as "Softswitch Supporting Multimedia Service and Mobile Service". The main work of this paper is based on this system. Then the paper gives an expatiation to the concept and development condition of NGN and Service Support Environment. It introduces the SCE - an important part of Service Support Environment, and in particular the footprint of service creation technologies, including open service development interface, such as Parlay API, SIP Servlet, as well as service component.The second part raises the concept of service capability convergence in SCE, and introduces the influence which service composition brings to current service creation methods. After that, aiming at the two key components of service compositon, SIP Servlet 2 ACU and WSDL 2 ACU, the paper goes along with analyse and research, in order to bring capabilities represented by SIP protocol in telecommunication domain, as well as Web Service capabilities into SCE. Then, the paper shows a service test to WSDL 2 ACU module, analysis the result impersonality, and points out the short comings of current work.Finally, the paper summarizes the work of the author in the graduate time, and indicates the next research aspect.更多还原