4G网络上提供直播和点播业务的关键技术探讨  

Key Technology Discussion of Live and VOD Streaming Service Provided on the 4G Network

作　　者：施唯佳[1] 吕冠中[1] 

机构地区：[1]中国电信股份有限公司上海研究院,上海200122

出　　处：《电信科学》2015年第4期28-32,49,共5页Telecommunications Science

摘　　要：随着4G网络的建设,电信运营商迫切需要填充具有高带宽和大流量特性的应用,因此视频流媒体服务成为首选。在4G网络上开展直播、点播等移动流媒体业务,将涉及网络组网架构改变、大流量点播并发、多播服务提供、媒体内容引入、移动终端能力支持等4G网络新面临的关键技术问题。在分析4G移动网络现状的基础上,提出了开展移动流媒体服务的关键资源需求和技术建议,同时进行了业务实施部署的可行性分析,从而为运营商在4G网络上建设和部署直播和点播等流媒体服务提供借鉴。With the development of 4G networks, telecom operators are urgent to find the service that can use the high speed broadband. Video streaming service became the first choice. But providing video streaming service on the 4G network, operators faced many technical problems like network architecture changing, large flow concurrency, muhicast solution, content distribution, UE＇s ability and so on. And the key resource requirement and technology suggestion of providing video streaming service on 4G networks were studied and proposed, based on the analysis of current network status. At the same time, the feasibility analysis of the service deployment was also given, and then some references were provided to operators.

关 键 词：LTE EMBMS E—UTRAN 演进分组核心网 eNode B 内容分发网络 分组数据网关 用户终端 

分 类 号：TN929.5[电子电信—通信与信息系统]