Verizon and AT&T continue to pile up the tests in millimeter wave spectrum, aiming to steal a march in 5G capacity, at least for fixed wireless services. Their efforts must also be taking place with half an eye on the big threat of 5G – that its more flexible architectures and expanded spectrum will enable new entrants, and rob the telcos of their stranglehold on mobile services. In the responses to the FCC’s Spectrum Frontiers recommendations for high band 5G airwaves, the tensions were clear. Many bighitters are calling for mmWave bands to be licence-exempt, as 60 GHz already is – claiming that it is the IEEE, and the WiFi Alliance with its WiGig certifications in 60 GHz, which are…