For some operators, neither fixed wireless access nor old-style mobile broadband will be the services that justify investing heavily in 5G. They are looking for entirely new revenue streams, often from industrial, IoT and mission critical communications. For most of these applications, high frequency spectrum is unnecessary, and companies are far more interested in questions of the most efficient air interface, channelization methods and coding techniques to support IoT services optimally. For some, these have been neglected in favor of the interests of a small group of early adopters which are heavily focused on fixed wireless and high capacity mobile data. But the majority are more focused on squeezing as much out of LTE as they can for the coming…