In the U.S., Verizon and AT&T are both rolling out commercial 5G service using millimeter wave spectrum to provide consumers with an enhanced mobile broadband experience with early testing showing over the air transmissions in excess of 1 Gbps. But that comes with trade-offs–given the propagation of millimeter waves, dense coverage will require a major investment in street-level small cells and building penetration, particularly in newer construction, will be highly limited. But that’s not to say 5G using millimeter wave doesn’t have a place in in-building wireless systems.
