CBRS

The Citizens Broadband Radio Service (CBRS) is a chunk of 3.5GHz spectrum that the FCC has set aside for future use for 4G/LTE cellular, 5G, and other innovative uses. When used for LTE, CBRS is defined as LTE Band 48.  

CBRS is pioneering an innovative approach to sharing access to spectrum - with military radar and existing satellite operations grandfathered in while in use, then there is a second tier of Priority Access Licenses (PAL) that are being auctioned off to telecommunications companies for 5G and expanded LTE service.

Finally, there is a third tier of access that is open to anyone without a license - similar to Wi-Fi. Devices operating at this level will have to be a good neighbor with other nearby devices.