No sooner had the first 3GPP 5G specifications been completed (see separate item) than all four major US MNOs were clamoring to announce support and describe their latest trials. Sprint, which has not so far joined the race to be first to 5G in the US – arguing that it has plenty of 4G spectrum and capacity still to use – nonetheless crowed that had succeeded in getting its primary band, 2.5 GHz, into the 5G specs. That means its greatest competitive asset, more than 100 MHz of this spectrum per market, can be used for either wireless generation according to business case. Meanwhile, AT&T and Verizon reiterated plans to trial and deploy fixed wireless access (FWA) using 5G in…