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http:/www.froninvest.com

邬贺铨:边缘计算发展这十大问题非常值得关注

随着5G、物联网等发展,让边缘计算产业变得非常火热。但在中国工程院院士邬贺铨看来,现在边缘计算发展仍存在不少问题。在今日举行的2018边缘计算技术峰会上,邬贺铨更是提出了边缘计算十问。

边缘计算的发展这十大问题非常值得关注
 

一问:5G边缘计算下沉在什么位置?

边缘计算可以在CU,也可以在DU。与云计算相比,边缘计算越低越靠近信源,时延性能越好,但越低则数量越多,成本可能不合算,边缘计算放在什么位置是值得研究的。

二问:计算能力是一级还是多级设置?

在采用边缘计算的前提下,要不要采用云计算?在云计算和边缘计算之间,是否需要雾计算?一个云计算节点联接的移动边缘计算节点数量多少算合理?

三问:计算能力如何在边缘计算和云计算之间优化配置?

在5G网络里,后台有云计算,基站有边缘计算,这两种能力怎么分配,是固定分配还是动态调整,两者之间要互相交换什么?

四问:边缘计算间通过云计算节点互通还是直接通信?

边缘计算节点之间要不要互通,或者说必须间接互通。例如,在无人驾驶场景下,马路的网络中,汽车可能不止一个边缘计算节点,有可能同时连到两个边缘计算节点。也许不同的车会连到不同的计算节点,但同时,它们之间可能是要交互的。要不要边缘计算直接交互,它们非要通过最上面一层云计算才能交互,这是值得研究的问题。

五问:边缘计算需要IaaS、PaaS、SaaS等服务能力吗?

云计算有PaaS层、Iaas层、SaaS层,但是边缘计算究竟需要具备哪些功能?以手机人脸识别场景为例,一般来讲边缘计算是在数据建模和根据大数据训练来调整模式,智能终端就是推算。假如通过边缘计算增强人脸识别能力,边缘计算至少具备PaaS功能,还需要可能具有一些视频转码的功能就是SaaS,有可能需要IaaS功能。

六问:5G边缘计算需要同时具备接入,转发和控制云功能吗?

未来云化的5G网络在接入云需要实现资源协同管理;在控制云需要对无线资源管理,实现能力开放,网络资源编排等;在转发云上需要实现内容存储转发。而处于网络边缘的边缘计算究竟需要那些能力需要考虑。

七问:边缘计算要不要跟网络切片结合?

网络切片是5G最基本的一个特征。不同的边缘计算对应不同的应用。目前,边缘计算是按业务来配置的,但将来边缘计算还会是这样吗?

八问:位于C-RAN的MEC需要按业务来分配吗?

九问:边缘计算是独立设置还是跟其他功能集成?

十问:边缘计算需要软件定义吗?

此外,邬贺铨认为,MEC的引入会减轻云计算对数据分析对压力,但数据过滤但准确性需要保证;MEC的引入将增加传输延时,还可能包含缓存功能,uRLLC还能使用MEC吗?MEC的管理是由控制面还是由管理面来实施?MEC的安全防护能力不会比云计算强,分布的MEC可能成为DDoS攻击的对象。

技术专区

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  • 边缘计算的发展这十大问题非常值得关注
  • 边缘计算是支撑行业数字化的关键使能技术
  • 上海联通5G率先入场打造智慧世博会
  • 中国移动正在从四方面推动边缘计算产业的发展

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