【摘要】：隨著智能終端的不斷增多和LTE技術的不斷完善,基于IMS網絡的VoLTE語音解決方案,實現了數據與語音業務在同一網絡下的統一,為用戶提供了高質量語音服務和用戶體驗,已成為國內三大運營商推進的方向。但由于VoLTE業務在國內仍處于測試、商用初期階段,其VoLTE業務性能的評價也處于理論分析過程,因此,對聯通VoLTE業務性能的評價與技術改進策略研究,有助于其VoLTE業務的拓展和技術改進。論文在系統梳理VoLTE業務性能評價研究成果的基礎上,分析了聯通VoLTE業務架構、業務性能指標及其評價指標體系建立的途徑,利用魚刺圖和雷達圖指出了VoLTE業務性能指標改進的方向;其次,依據VoLTE業務性能測試的內容和雷達圖,提出了VoLTE業務技術改進的策略。按照VoLTE業務場景要求,論文通過對SPS、TTI Bundling、ROHC頭壓縮等的測試工作,分析了信令開銷的優化(魯棒性報頭壓縮(ROHC)、半靜態調度(SPS)的應用場景)和VoLTE覆蓋增強技術(包括TTI Bundling的應用場景)、VoLTE語音解決方案等問題。論文第一章主要介紹VoLTE業務發展的情況、論文研究的意義、相關研究文獻綜述,及論文研究的思路與方法;第二章主要介紹VoLTE業務架構、核心網IMS、VoLTE業務流程分析等;第三章主要分析VoLTE業務性能指標的構成及其影響因素、VoLTE業務性能評價方法及評價途徑;第四章為VoLTE性能測試途徑與技術改進策略,主要分析了聯通VoLTE性能測試內容和步驟,提出了VoLTE性能改進策略。
[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.
【學位授予單位】：南京郵電大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TN929.5

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本文編號：2311555