Citizens Broadband Radio Service | Corning

Large enterprises, where reliable wireless connectivity is mission critical, benefit most from CBRS. Here are a few examples:

• Production facilities with machine-to-machine communication needs.
• Airport back-office and security operations requiring private networks.
• Oil refineries where installing network cables is cost prohibitive.

3.55-3.7 GHz, also identified as ITU Band 48.

A cloud service called Spectrum Access System (SAS) manages requests and grants spectrum based on fifteen 10 MHz-wide channels. There are many providers of SAS services for organizations to choose from.

SAS manages spectrum grants in the following priority order:

• Incumbents: Naval radar and fixed satellite services.
• Priority Access Licenses (PAL) that are guaranteed and reliable: 3.55-3.65 GHz, geographic license by county.
• General Authorized Access (GAA), ad-hoc grants, like Wi-Fi: 3.55-3.7 GHz, any open channel that is not shared by nearby CBRS networks.

SAS channel grants take geographic location and infrastructure radio information into account so different CBRS networks can be assigned channels that won’t interfere with each other.

SAS has its own network for Environmental Sensing Capability (ESC) to detect incumbent traffic and protect it by dynamically shifting PAL/GAA traffic out of the way of the incumbents. For example, naval radar, when activated, is detected by SAS ESC and triggers affected CBRS networks to shift channels.

You don’t need to do anything to gain GAA usage. If you currently have or are installing CBRS infrastructure equipment, it will automatically access GAA for you via the SAS.

Yes. If you need guaranteed spectrum, you can acquire a PAL license from an FCC auction or sublease from an existing PAL license holder. The CBRS infrastructure must be provisioned with the PAL information before connecting to the SAS.

It’s a closed LTE network that supports associated devices that can only attach to that network. A private LTE network has its own core network and SIMs that operate independent of mobile operators. Devices linked to the private network are invisible to mobile operators.