Citizen Broadband Radio Service

Citizen Broadband Radio Service (CBRS) describes a three tiered dynamic spectrum sharing strategy in the 3.5 GHz (3550-3700 MHz) band between incumbent, licensed and unlicensed users. CBRS spectrum is compatible with LTE bands 42 and 48. and represents a radical departure from traditional spectrum acquisition for advanced wireless services.

Frequency band
3550 - 3700 MHz

Contact us for testing, trials, resources and pre-release pricing.

Pre-release Key Bridge CBRS services are presently under test and field trial.
Contact us for testing, trials, developer resources and pre-release pricing.

Citizen Broadband Radio Service (CBRS) provides for shared commercial use of the 3.5 GHz (3550-3700 MHz) band with the incumbent users such as military radars and fixed satellite stations. In the United States, CBRS is described under Part 96 of the Federal Communication Commission's rules.

CBRS represents approximately a 16% expansion of licensed spectrum below 4 Ghz. Current uses of the frequency band are dominated by military radar (at sea below 3650 MHz) and WiMAX broadband data services (over land above 3650 MHz).

CBRS spectrum is compatible with LTE bands 42 and 48 and is available on a licensed and unlicensed basis. Advanced wireless carrier technology without the traditional costs of spectrum acquisition presents many new and unique opportunities for innovation, including:

  • Fixed Wireless Access and 5G services on CBRS 150 MHz of spectrum inventory show promise of speeds comparable to cable and fiber
  • Small Cell Networks using CBRS spectrum significantly lowers the cost of capacity overlay and network gap-fill.
  • Private LTE networks promise secure, robust and lower cost wireless services for factory automation, industrial monitoring, physical security and more.
  • Enterprise neutral host could lower the cost of carrier deployment while creating new revenue opportunities for facility owners.
  • Industrial IoT based upon private LTE or carrier 5G networks promise increased performance, reliability and security with economics comparable to WiFi.
  • Rural broadband with high power macro cell coverage on emerging 5G CBRS technologies promises significantly lower cost deployments.
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