Despite the high excitement in the US about millimeter wave spectrum, for most mobile services and mainstream devices, the short term focus will be on expanding capacity in the midrange bands. These do not require the same levels of engineering innovation or new regulation to make them practical and affordable for mass market services, beyond the fixed wireless area where Verizon and AT&T are experimenting with high frequencies. But they can significantly add to the device capacity and bandwidth that an operator can support with LTE or 5G (or a combination). The FCC recently voted to adopt a Notice of Inquiry (NOI) to explore opportunities in spectrum bands between 3.7 GHz and 24 GHz, and initiated comment periods related to…