Wireless Devices

Spectrum Details for CBRS Frequency Band

Summary
Band CBRS
Band Name Citizens Broadband Radio Service
Frequency 3550 - 3700 MHz
Allocated Use Cellular
Used in Countries United States
Duplex Mode TDD
TDD Band (MHz) 3550 - 37001
Bandwidth 150 MHz
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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.

Technical Details

Legal Details

Kama Thuo, PLLC Wireless Telecommunications Law Firm has compiled legal details on CBRS.

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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

The CBRS plays a pivotal role in expanding cellular connectivity by enabling private LTE and 5G networks, particularly for enterprises, industrial IoT, and rural broadband. In LTE it is designated as LTE Band 48 and in 5G as NR n48.

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Licensing Details
Band Portion License Type License Eligibility
3550-3650 MHz (licensed - PAL) Auction Licensed Any Person or Entity
3550-3700 MHz (unlicensed - GAA) Licensed By Rule Any Person or Entity
3550-3650 MHz (incumbents) Government Exclusive Government Only

For legal details on CBRS (or for counseling on spectrum licensing and allocation generally), see information at Kama Thuo, PLLC Wireless Telecommunications Law Firm.

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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.