5G还没来,华为等顶尖无线通信专家已经在畅想6G了

据媒体报道,在3月24日至26日,各国200多位顶尖无线通信专家齐聚芬兰莱维,参加了由芬兰奥卢大学主办的全球首个6G峰会,峰会主旨是“为6G到来铺平道路”。事实上,由于关于6G还没有清晰概念。所以只是头脑风暴、各抒己见。有的方案会被慢慢地否决,要么因为实现不了,要么是实现起来成本非常高。

也有一些已经实现的项目。比如,采用更高频段通信可能是6G的关键技术之一,广岛大学在全球最先实现了基于CMOS低成本工艺的300GHz频段的太赫兹通信。德国伍珀塔尔大学基于锗化硅(SiGe)材料构建了完整的信号收发系统,能够实现1米距离的260GHz频段太赫兹通信。并且他们认为如果采用直径6.5厘米的透镜天线,通信距离能够达到100米。

比较有意思的是,华为关于6G的畅想。与会人士回忆表示,华为认为6G时代将超出5G时代“物联网”,实现“万物互联”(Internet of Everything,简称IoE),即整个人文社会和外部物理世界实现紧密连接,因此6G的数据不是一个一个的大数据,很可能是无数的小数据汇成大数据。

而在通信维度方面,除了更高的速率、更宽的频谱,6G应该拓展到海陆空甚至水下空间。硬件方面,天线的角色也更为重要。随着通信频率提高,天线将会越来越小,甚至可能做到每颗芯片都有属于自己的天线,这对材料要求越来越高,对材料和加工精度都提出了更高的要求。软件方面,人工智能在6G通信中将扮演重要角色。

华为还提出了用6G时代通过大脑意念控制联网物品,以及利用WIFI、基站进行无线充电等概念。此外,华为甚至设想发射10000多颗小型低轨卫星,实现覆盖全球6G通信的设想,并且估算了成本——99亿美元。

你对6G有什么畅想呢?

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