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About CBRS

A lot of the wireless spectrum in the United States is exclusively licensed and can only be used by one organization at a time. The Citizens Broadband Radio Service (CBRS) band, defined as the frequencies between 3550 and 3700 MHz,  is different because it's a shared spectrum. When operating in a shared spectrum, users with different levels of priority have access to the band.

There are 3 tiers of users in CBRS:

  • Tier 1 (higher priority): Naval aircraft carriers, Fixed Satellite Stations, GWBL/GWPZ
  • Tier 2: Priority Access Licensee (PAL)
  • Tier 3: General Authorized Access (GAA)

Higher priority users must be protected from interference by lower-priority users.

The CBRS band is defined as the frequencies between 3550 and 3700 MHz. 

The FCC’s Part 96 regulations govern commercial use of the CBRS band. The Wireless Innovation Forum (WInnForum) is an international group of stakeholders who have developed the standards used in the CBRS band.
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