The letter C in C-Band could stand for any one of Chaos, Calamity or Confusion, with many companies battling for the best ideas of how to reallocate the lucrative slice of US wireless midband spectrum. Eventually, it has all proved too much for satellite fleet operator Eutelsat, which this week threw in its C-Band Alliance membership towel. The issue is crucial to the future of US 5G services as the country, unlike most of the world, has limited availability of the midband spectrum which is ideal for capacity-oriented 5G and less difficult than millimeter wave. Sprint owns most of the 2.5 GHz airwaves, while most of the 3.5 GHz bands are in federal or satellite hands. The CBRS scheme will…