In a Citizens Broadband Radio Service (CBRS) system, high-power customer premises equipment (HP-CPE) transmits a registration request to a spectrum access system (SAS), which determines a CPE device type for the HP-CPE and transmits a positive registration response to the HP-CPE. The HP-CPE transmits a grant request to the SAS, which transmits a positive grant response to the HP-CPE. The HP-CPE transmits a heartbeat request to the SAS, which relies on the CPE device type to approve the heartbeat request without relying on a corresponding Coordinated Periodic Activity among SASs (CPAS) process, and transmits a positive heartbeat response to the HP-CPE. In one method, the SAS determines the CPE device type using a database that maps FCC model numbers to device types. In another method, the registration request contains a field with the CPE device type. Both methods enable immediate HP-CPE authorization without the delay of a CPAS process.