The multi-tiered access system devised in the USA for the CBRS spectrum is likely to be emulated in other bands where there are incumbent users, and the potential to share airwaves between different providers. A good example is the 6 GHz band, which was opened up for wireless broadband by the FCC last year and has mainly been associated with WiFi. But many stakeholders want it to be available for cellular also (some countries, like China, are likely to allocate it almost entirely to 5G). In the USA, it can only currently be used in low power mode for shared use but a spectrum coordination system would allow for standard power outputs and therefore outdoor applications, and is likely to…