CDN下沉技术在移动接入网中的应用研究  

Research on Application of CDN Sink Technology in Mobile Access Network

作　　者：张勍[1] 肖卫东 盛煜[1] 冯毅[1] Zhang Qing;Xiao Weidong;Sheng Yu;Feng Yi(China Unicom Network Technology Research Institute,Beijing 100048,China;National Defence University of People's Liberation Army,Beijing 100858,China)

机构地区：[1]中国联通网络技术研究院,北京100048 [2]国防大学联合勤务学院,北京100858

出　　处：《邮电设计技术》2019年第8期50-54,共5页Designing Techniques of Posts and Telecommunications

摘　　要：移动网络技术和智能终端的快速发展加速了移动互联网业务的发展,移动互联网业务也对移动网络提出了更低的时延要求,因此将CDN节点进一步下沉到移动接入网中将成为必然。在介绍了传统CDN系统的功能组成和物理组成后,提出了将CDN节点下沉到移动接入网中的系统架构,并分析了部署复杂度低的简易部署方案和边缘CDN节点受全局负载均衡器调度的全局部署方案的特点、实现方案和具体业务流程,最后给出了CDN下沉技术的主要应用场景。The rapid development of mobile network technologies and smart terminals has accelerated the development of mobile Internet services.Mobile Internet services also require lower latency on mobile networks.Therefore,it is inevitable that CDN nodes will further sink into mobile access networks.After introducing the functional composition and physical composition of the traditional CDN system,it proposes a system architecture for sinking CDN nodes into a mobile access network,and analyzes the simple deployment scheme with low-complexity,and analyzes the characteristics,implementation schemes and specific business processes of the global deployment scheme that the edge CDN nodes is scheduled by the global load balancer.Finally,the main application scenarios of the CDN sinking technology are given.

关 键 词：无线接入网 内容分发网络 边缘服务器 域名系统 内容存储器 

分 类 号：TN929.5[电子电信—通信与信息系统]