多标准数字广播网络终端切换技术研究  

Research on Handover Technique between Terminals in Multi-standard Digital Broadcasting Networks

作　　者：王悦[1] 薛永林[1] 李军[1] 刁梁[1] 

机构地区：[1]清华大学数字电视技术研究中心,北京100084

出　　处：《电视技术》2009年第10期35-37,43,共4页Video Engineering

基　　金：欧盟第六框架国际合作项目(045461)

摘　　要：首先介绍了移动终端在不同数字广播网络间(以DVB-H和DTMB为例)移动时得到无缝切换服务的需求与场景。随后介绍了欧洲的数字广播标准DVB-H,DVB-T和中国的数字广播标准DTMB,切换的判决条件以及节目的同步过程,终端进行切换的状态转换机制,以及实现切换功能的移动终端的模块结构设计。最后给出了实验结果。In this paper, the need and scenario of mobile terminal seamlessly switching between different digital broadcasting networks（like DVB-HfF and DTMB） are discussed. And then, DVB-H/T and DTMB standards, handover decision condition and the synchronization algorithm for programs in different broadcasting networks are introduced. Meanwhile, the state transition mechanisms of terminals, and the module structure design which can realize the switching function are also described. Finally, the experimental results are given.

关 键 词：全球移动与广播技术多协议网络融合 切换 DVB—H DTMB 

分 类 号：TN934.3[电子电信—信号与信息处理] TN87[电子电信—信息与通信工程]