5G is coming. This time around the big decision for the “next generation” is not about selecting a specific radio technology but choosing the best way to combine a 5G New Radio (NR) solution with the 4G LTE network. This choice is often described in terms of “Non-Standalone” (NSA) and “Standalone” (SA) and a list of “options” referred to as 2, 3X, 4, 5 and 7X.