1. [1] “DOCOMO 5G White Paper,” Nttdocomo.co.jp, 2018. [Online]. Available: https://www.nttdocomo.co.jp/english/corporate/technology/whitepaper_5g/
2. [2] NGMN, “NGMN-5G White Paper,” Ngmn.org, 2018. [Online]. Available: https://www.ngmn.org/5g-white-paper/5g-white-paper.html
3. [3] “5GMF White Paper “5G Mobile Communications Systems for 2020 and beyond” Ver.1.1,” Fifth Generation Mobile Communication Promotion Forum, 2018. [Online]. Available: https://5gmf.jp/en/whitepaper/5gmf-white-paper-1-1/
4. [4] “5G System Integrated Verification Trial Report-5G Utilization Project Plan-Ver.1.0,” Fifth Generation Mobile Communication Promotion Forum, 2018. [Online]. Available: https://5gmf.jp/en/whitepaper/5g-tpg-report-1-0/
5. [5] F. Hasegawa, A. Taira, H. Nishimoto, A. Okazaki, A. Okamura, G. Noh, B. Hui, J. Lee, and I. Kim, “3GPP standardization activities in relay based 5G high speed train scenarios for the SHF band,” 2017 IEEE Conference on Standards for Communications and Networking (CSCN), Sept. 2017. 10.1109/cscn.2017.8088610