The figure shows the Point to Multi-Point Network architecture for the license free CBRS band. At power up, every CBSD (Citizens Broadband Radio Service Device) is required to contact the shared Spectrum Access System (SAS) over the Internet and receive the operating parameters like channel and the RF power limit. The SAS provides this authorization in accordance with other CBSDs operating in the area. Once the CBSD receives the authorization from the SAS, it can then instruct the downstream EUD (End User Device) to begin the operation.
Doodle Labs has the complete portfolio of CBSD-A (self-installable) for urban use cases, high powered CBSD-B (professional installation) for rural-outdoor settings. Additionally the corresponding EUDs are available.