On Thursday, the FCC voted unanimously to open up high frequency spectrum bands for 5G networks, as proposed earlier in the year. This certainly sees the US taking a lead in pushing millimeter wave wireless networks forward, rather than just talking about them. But while Verizon, AT&T and T-Mobile are racing ahead, for most operators round the world, millimeter wave is a distant prospect. Senior MNO executives continue to issue warning statements, calling on the industry to slow down and ensure that LTE continues to be enhanced for a decade or more to come. And even for those operators which believe they know what 5G will be, and aim to deploy it in the early 2020s, the first focus –…