CBRS/Private LTE

150 megahertz of spectrum in the 3.5 GHz band (3550 MHz-3700 MHz). Usage rights are available on an opportunistic basis — spectrum in the band is generally available for commercial use on a use-it-or-lose-it basis.

Tier 1 is for the incumbent government, satellite users and Wireless ISP’s (moving to Tier 2 or Tier 3).

Tier 2 is for Priority Access Licenses (PALs) that will have access to 70 megahertz of the total 150 megahertz available. These licenses were sold by the FCC during the summer of 2020. Here is a report on the new owners of this spectrum. JMA Wireless - CBRS PAL Result Maps PAC

Tier 3 is for General Authorized Access (GAA) users who can access the spectrum on an opportunistic basis. There are 80 megahertz of spectrum in every market as well as the 70 megahertz of PAL spectrum when it is not being used by PAL licensees.

The spectrum is managed and assigned on a dynamic, as-needed basis using a Spectrum Access System (SAS), across these three tiers of access. The FCC certified CommScope, Federated Wireless, Google and Sony as Spectrum Access System administrators in January 2020.

The SAS will ensure that every CBRS radio, known as a CBSD, that transmits in this band complies with FCC Part 96 rules for sharing spectrum. To protect against interference with Navy radar, the SAS will be connected to a network of sensors called Environmental Sensing Capability (ESC). The ESC network will monitor for Navy radar operation and will alert the SAS when it detects activity. In such an event, the SAS will coordinate the CBSD transmit levels and channels to ensure that no harmful interference is caused.

Graybar: https://www.graybar.com/store/en/gb/cm/solutions/wireless

JMA Wireless: https://jmawireless.com/enterprise-private-networks/

Commscope: https://www.commscope.com/solutions/enterprise-networks/private-networks/?utm_source=ruckus&utm_medium=redirect

Corning: https://www.corning.com/in-building-networks/worldwide/en/home/applications/cellular-solutions/knowledge-center/small-cell-resources/cbrs-private-lte.html

Geoverse: https://www.geoverse.io/

Extenet: https://extenetsystems.com/

CBRS has developed an end-user device ecosystem that includes 10 different makes and models of handsets from iconic vendors that support the CBRS band (b48).

Many of these handsets also support new and game-changing technologies called embedded Subscriber Identity Module (eSIM) and Dual SIM Dual Standby (DSDS). eSIM enables remote provisioning of multiple operator profiles on a single handset, providing an opening for business innovation and customer choices. DSDS allows the handsets to stay registered on multiple operator networks simultaneously. For example, customers can select which operator network they prefer for data or voice based on the service cost. Additionally, a customer can instruct the phone to prefer a particular operator’s (e.g., CBRS) network for data services when more than one network is available.