5G与地面移动广播电视

5G and Terrestrid Mobile Broadcasting

第五代移动通信(5G)技术在数据速率、延时和接入密度等方面具有优异的技术指标,能够满足增强宽带、超可靠低时延和大规模机器通信等应用场景的需求。但是这些特性要在一定的技术条件下才能实现,而且经常是'或'而不是'与'的关系,5G不是无所不能。5G作为一个数据传输平台为广播和移动通信融合创造了条件。广播电视科学研究院提出了'无线交互广播电视'技术方案,国家广播电视总局科技司成立工作组具体开展研究和标准化推动工作,参与3GPP5G广播标准制定。通过使5G标准支持'大塔'广播实现广播电视进手机,实现人人通、终端通;通过采用5G移动通信'小塔'实现双向通信,支持交互业务及融合业务。现5G广播标准已经立项,计划于2019年底完成,工作组先导试验已在筹划中。

The ffth generation(5G)mobile communication technology has advantages in data speed,latency and density which can support enhanced Mobile Broadband(eMBB),ultra-Reliable Low Latency Communication(uRLLC)and massive Machine Type Communication(mMTC)scenarios.But these features can only be achieved under certain technical conditions and they usually have the relationship of'or'but not'and',which means 5G is not capable of everything at same time.5G is a data transport platform that paves the way for the convergence of broadcast and mobile communication.Academy of Broadcasting Science(ABS)proposed Advanced Interactive Broadcasting(AIB),and National Radio&Television Administration(NRTA)sets up the AIB working group to promote the research and standardization activities in 3 GPP.By having 5G to support broadcast,achieve the goal of'mobile TV to smartphone';by using 5G mobile communication,support interactive services and converged services.Now the work item for 5G broadcast has been approved in 3 GPP and will be freezed at the end of 2019.The pilot trail network is under planning.