As mobile stakeholders continue to lobby the FCC either to speed up progress on opening up the 3.5 GHz CBRS band, or to change the rules, there is significant progress in making the shared spectrum system commercially workable. However, while stakeholders like Google press the FCC to speed up its efforts, the CTIA is concerned that the US is, once again, adopting a band plan which does not align with the global norm, and that may create a disadvantage in 5G. Federated Wireless is one of two companies which are trialling spectrum access systems (SAS) to manage the sharing of airwaves and prevent interference (the other being Google). It says it has now racked up about 40 trials, including technology…