Publication: Publication Date: 2021/09/01 Vol. E104-BNo. 9pp. 1000-1008 Type of Manuscript: Special Section PAPER (Special Section on Technology Trials and Proof-of-Concept Activities for 5G Evolution and Beyond) Category: Keyword: 5G evolution, massive MIMO, ultra high-mobility, high speed train, 28GHz band,
Publication: Publication Date: 2021/09/01 Vol. E104-BNo. 9pp. 1089-1096 Type of Manuscript: Special Section PAPER (Special Section on Technology Trials and Proof-of-Concept Activities for 5G Evolution and Beyond) Category: Keyword: 5G, massive-MIMO, multi-user MIMO, hybrid beamforming, low-complexity,