Qucell 4G/LTE Small Cell System Manual Version: 0.0.3
Qucell Confidential 21 2018-08-29
Figure 13. E-UTRAN Small Cell network configuration diagram with CBRS
In CBSD – SAS interface, CBSD should send request messages according to the CBSD state. Following
figure describes CBRS registration state. When CBSD is unregistered state, CBSD sends registration
request message to register state which means CBSD can request grant. And CBSD can send
deregistration message to deregister from the SAS.
Figure 14. CBRS Registration State Diagram
Following figure describes CBRS Granted state. CBSD can send grant request with user desired
parameter. If grant request is acceptable, SAS allocate grant with “Granted” status which means not
yet authorized. CBSD sends heartbeat request in order to Authorize the Grant. After SAS sends
Summary of Contents for SC-220
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