Toward 6G TK$\mu$ Extreme Connectivity: Architecture, Key Technologies and Experiments

Xiaohu You; Yongming Huang; Shengheng Liu; Dongming Wang; Junchao Ma; Chuan Zhang; Hang Zhan; Cheng Zhang; Jiao Zhang; Jin Li; Min Zhu; Jianjie You; Dongjie Liu; Shiwen He; Guanghui He; Fengyi Yang; Yang Liu; Jianjun Wu; Jianmin Lu; Ge Li; Xiaowu Chen; Wenguang Chen; Wen Gao

arXiv · 2208.01190

Toward 6G TK$\mu$ Extreme Connectivity: Architecture, Key Technologies and Experiments

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Abstract

Sixth-generation (6G) networks are evolving towards new features and order-of-magnitude enhancement of systematic performance metrics compared to the current 5G. In particular, the 6G networks are expected to achieve extreme connectivity performance with Tbps-scale data rate, Kbps/Hz-scale spectral efficiency, and $\mu$s-scale latency. To this end, an original three-layer 6G network architecture is designed to realise uniform full-spectrum cell-free radio access and provide task-centric agile proximate support for diverse applications. The designed architecture is featured by super edge node (SEN) which integrates connectivity, computing, AI, data, etc. On this basis, a technological framework of pervasive multi-level (PML) AI is established in the centralised unit to enable task-centric near-real-time resource allocation and network automation. We then introduce a radio access network (RAN) architecture of full spectrum uniform cell-free networks, which is among the most attractive RAN candidates for 6G TK$\mu$ extreme connectivity. A few most promising key technologies, i.e., cell-free massive MIMO, photonics-assisted Terahertz wireless access and spatiotemporal two-dimensional channel coding are further discussed. A testbed is implemented and extensive trials are conducted to evaluate innovative technologies and methodologies. The proposed 6G network architecture and technological framework demonstrate exciting potentials for full-service and full-scenario applications.

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Xiaohu You, Yongming Huang, Shengheng Liu, Dongming Wang, Junchao Ma, Chuan Zhang, Hang Zhan, Cheng Zhang, Jiao Zhang, Jin Li, Min Zhu, Jianjie You, Dongjie Liu, Shiwen He, Guanghui He, Fengyi Yang, Yang Liu, Jianjun Wu, Jianmin Lu, Ge Li, Xiaowu Chen, Wenguang Chen, Wen Gao. 2022-08-02. Toward 6G TK$\mu$ Extreme Connectivity: Architecture, Key Technologies and Experiments. https://arxiv.org/abs/2208.01190

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