5G Communications Market Size, Share, Report - By Communication Infrastructure (Small Cell, Macro Cell), By Core Network Technology (Software-Defined Networking (SDN), Network Function Virtualization), By Network Architecture (5G NR Non-Standalone (LTE Combined), 5G Standalone), By Operational Frequency (Sub 6 GHz, and Above 6 GHz), By End User (Residential, Commercial, Industrial, and Government)- Global Opportunity Analysis and Industry Forecast, 2021 – 2030