联通VoLTE业务性能评价与技术改进策略

发布时间：2018-11-05 08:48

【摘要】：随着智能终端的不断增多和LTE技术的不断完善,基于IMS网络的VoLTE语音解决方案,实现了数据与语音业务在同一网络下的统一,为用户提供了高质量语音服务和用户体验,已成为国内三大运营商推进的方向。但由于VoLTE业务在国内仍处于测试、商用初期阶段,其VoLTE业务性能的评价也处于理论分析过程,因此,对联通VoLTE业务性能的评价与技术改进策略研究,有助于其VoLTE业务的拓展和技术改进。论文在系统梳理VoLTE业务性能评价研究成果的基础上,分析了联通VoLTE业务架构、业务性能指标及其评价指标体系建立的途径,利用鱼刺图和雷达图指出了VoLTE业务性能指标改进的方向;其次,依据VoLTE业务性能测试的内容和雷达图,提出了VoLTE业务技术改进的策略。按照VoLTE业务场景要求,论文通过对SPS、TTI Bundling、ROHC头压缩等的测试工作,分析了信令开销的优化(鲁棒性报头压缩(ROHC)、半静态调度(SPS)的应用场景)和VoLTE覆盖增强技术(包括TTI Bundling的应用场景)、VoLTE语音解决方案等问题。论文第一章主要介绍VoLTE业务发展的情况、论文研究的意义、相关研究文献综述,及论文研究的思路与方法;第二章主要介绍VoLTE业务架构、核心网IMS、VoLTE业务流程分析等;第三章主要分析VoLTE业务性能指标的构成及其影响因素、VoLTE业务性能评价方法及评价途径;第四章为VoLTE性能测试途径与技术改进策略,主要分析了联通VoLTE性能测试内容和步骤,提出了VoLTE性能改进策略。
[Abstract]:With the increasing number of intelligent terminals and the continuous improvement of LTE technology, the VoLTE voice solution based on IMS network realizes the unification of data and voice service under the same network, and provides high quality voice service and user experience for users. Has become the three major domestic operators to promote the direction. However, the VoLTE service is still in the testing stage in China, and the evaluation of its VoLTE service performance is also in the process of theoretical analysis. Therefore, the performance evaluation and technical improvement strategy of Unicom VoLTE service are studied. Contribute to the expansion of its VoLTE business and technical improvements. On the basis of systematically combing the research results of VoLTE service performance evaluation, the paper analyzes the VoLTE service architecture, business performance index and the way to establish the evaluation index system of Unicom. The improvement direction of VoLTE service performance index is pointed out by using fish-burr map and radar map. Secondly, according to the content of VoLTE service performance test and radar diagram, the improvement strategy of VoLTE service technology is put forward. According to the requirement of VoLTE service scenario, the paper analyzes the optimization of signaling overhead (robust header compression (ROHC),) by testing SPS,TTI Bundling,ROHC header compression and so on. Semi-static scheduling (SPS) application scenarios and VoLTE coverage enhancement technology (including TTI Bundling application scenario), VoLTE voice solution) and other issues. The first chapter mainly introduces the development of VoLTE business, the significance of the research, the literature review, and the ideas and methods of the paper, the second chapter mainly introduces the VoLTE business architecture, core network IMS,VoLTE business process analysis and so on. The third chapter mainly analyzes the composition of VoLTE service performance index and its influencing factors, VoLTE service performance evaluation method and evaluation approach; The fourth chapter is the VoLTE performance testing approach and technical improvement strategy, mainly analyzes the Unicom VoLTE performance testing content and steps, and proposes a VoLTE performance improvement strategy.
【学位授予单位】：南京邮电大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN929.5

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