面向6G物联网的主被动互惠传输关键技术

Key technologies of symbiotic transmission for 6G Internet of things

大规模机器类通信(mMTC,massive machine-type communication)被列为5G网络的三大应用场景之一,但真正成熟的万物互联需要到未来6G网络才能实现。6G物联网将同时提供高速率、低时延、高可靠、大连接等全方位服务,实现深度沉浸式泛在连接。首先,展望了6G技术和6G物联网的技术挑战,总结了现有物联网的物理层传输技术。然后,重点介绍和讨论了一类新型的面向6G物联网的主被动互惠传输技术,为6G物联网传输提供一种新的解决方案和实现途径。最后,讨论了在6G物联网主被动互惠传输方面具有重要意义的研究方向。

mMTC(massive machine-type communication)is one of the three major application scenarios of 5 G network,but it is highly likely that the truly mature Internet of everything may not be realized until the future 6 G network.In order to realize the deep immersive ubiquitous connection network,6 G IoT will simultaneously provide all-round services such as high data rate,low latency,high reliability and massive connections.Firstly,the 6 G was prospected and the technical challenges of 6 G IoT were summarized.Then the existing physical layer transmission technologies of IoT were reviewed.Next,the promising symbiotic transmission technologies for 6 G IoT were introduced and discussed,which enable the possibility that active transmission and passive transmission facilitates each other and provide a new solution for 6 G IoT transmission.Finally,some possible future research directions were presented for symbiotic transmission in 6 G IoT.