For more than two years now, the FCC has been evaluating the necessity and feasibility of opening up the 6 GHz band to unlicensed users of a wide variety of devices. They’ve published multiple notices of their findings, and on April 2, 2020, FCC Chairman Ajit Pai issued a draft version of the official rules, allowing unlicensed operation in the 6 GHz band—over the entire 1,200 MHz spectrum of that band. A final vote on April 23 opened the door to Wi-Fi 6e.
Point-to-point microwaves links are the de facto standard for connecting infrastructure over vast distances quickly and cost-effectively. Lower frequencies, like 6 GHz, allows a network to span long distances with high capacity while maintaining robust availability, especially during rain fade. These characteristics have led to rapid, widespread adoption with more than 40000 links in the 6 GHz frequency band deployed across the US.