On September 20, LightReading reported on an application submitted to the FCC by AT&T, Ericsson, and Nokia that seeks permission to test wireless network operations in several sites across the country in the 3.45-3.55 GHz band. This band is schedule for public auction by the FCC beginning October 5 of this year. The importance of clearing this spectrum as well as adjacent spectrum for licensed commercial use was the subject my February 2021 Perspectives from FSF Scholars titled "Fast Action on the Lower 3 GHz Band Will Secure America's 5G Future."
The upcoming auction is important because it will put more mid-band spectrum into commercial use for 5G services. And hopefully, it will be followed by successive auctions of lower 3 GHz spectrum that will further increase 5G capacity and capabilities in the United States.