Alessandro Vanelli-Coralli is a Full Professor in the Department of Electrical, Electronic, and Information Engineering at the University of Bologna. He is an IEEE Senior Member and serves on the Editorial Board of the Wiley Journal on Satellite Communications and Networks. Nicolas Chuberre is the Technical Manager of the European project H2020 ICT SAT5G. He has chaired the SatCom Working Group of ISI and Networld2020 technology platforms and is a member of the Partnership Board of the 5G Infrastructure Association. Gino Masini is a Principal Researcher at Ericsson, Sweden. He was Chairman of RAN WG3, where he oversaw the standardization of 5G radio network architecture, interfaces, and protocols. He is the author of more than 50 patents. Alessandro Guidotti is an Adjunct Professor in the Department of Electrical, Electronic, and Information Engineering at the University of Bologna. He is a member of the IEEE Technical Panel on Glue Technologies for Space Systems and serves on the Editorial Board of Aerial and Space Networks. Mohamed El Jaafari is a Radio Access Network specialist engineer and Lead Delegate for RAN WG1 3GPP at Thales Alenia Space. He is an expert in RF Planning, Radio Network Optimization, and RAN System dimensioning.