Wireless Device Info (WDI)

Spectrum Details for CBRS Frequency Band

Summary
Band CBRS
Band Name Citizens Broadband Radio Service
Frequency 3.5 GHz
Allocated Use Cellular
Used in Region North America
Duplex Mode TDD
TDD Band (MHz) 3550 - 37001
Bandwidth 150
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Radio Service

PART 96—CITIZENS BROADBAND RADIO SERVICE

Technical Summary

Part 96 governs the Citizens Broadband Radio Service (CBRS), enabling shared use of the 3550-3700 MHz band. It utilizes a three-tier model managed by the Spectrum Access System (SAS) to coordinate spectrum usage dynamically. Devices, known as Citizen Broadband Radio Service Devices (CBSDs), must be certified to interact with the SAS for frequency assignment and comply with power limits based on device categories. ESC systems detect incumbent activity to prevent interference.

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Legal Summary

Part 96 establishes the rules for the Citizens Broadband Radio Service (CBRS) in the 3550-3700 MHz band, enabling spectrum sharing across three tiers: Incumbent Access, Priority Access License (PAL), and General Authorized Access (GAA). The Spectrum Access System (SAS) dynamically manages spectrum usage to protect federal incumbents and licensed users while allowing shared access (§§ 96.1,3). PALs require auctioned licenses; GAA is unlicensed but must follow Part 96 rules.

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Spectrum Details

CBRS (Citizens Broadband Radio Service) at 3.5 GHz should not be confused with CB Radio (Citizens Band Radio) which is a two-way voice system at 27 MHz typically used by truckers.

CBRS spectrum

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Footnotes:
  1. Priority Access Licensees (PALs) 3.55-3.65 GHz; General Authorized Access (GAA) users 3.55-3.7 GHz.