CBRS Certified Professional Installer Review Questions and Answers

A CPI needs to record the _______ and _______ with in 50 meters or better. latitude and longitude CBRS Citizens broadband radio service and shared spectrum. CBRS band MHz frequency range and established by FCC in 2015. CBRS vision Used for fixed and mobile broadband services. advantages of CBRS 1. Efficient 2. Time to market. 3. Cost 4. Feasibility SAS (Spectrum access system) Is the centralized cloud service that manages CBRS transmission to protect higher priority users from interference. The three main entities for CBRS 1. FCC 2. Winnforum 3. CBRS Alliance CPI (certified professional installer) Ensures data entered into the SAS is correct and has the right data. The SAS needs this information to protect higher end users. CBRS Three tiers Tier 1. Incumbent Tier 2. PAL ( Priority Access License) Tier 3. GAA (General Authorized Access) Tier 1 Incumbents Services using the band before CBRS was around. Tier 2 PAL CBRS user that pay for a license at auction to receive interference protection. Tier 3 GAA Is free to use by any opportunistic users. What does the SAS do? The SAS gathers information from data bases maintained by the FCC to ensure lower priority user are not interfering with higher priority users. CBSD Are devices that transmit in the CBRS band to end users. CBSD need what before that can transmit in the CBRS band? CBSD need authorization from the SAS before transmitting to ensure there is no interference to higher priority users. Some CBSD communicate through a ________ to access the SAS. Domain Proxy EUD End User Device. The SAS can ________ or __________ access. Allow or disallow When the SAS detects an incumbents user all lower end user must get out of the way within _______. 5 minutes ESC Environmental sensing capability ESC detect when a incumbent user is broadcasting in the CBRS band and communicates with the _______ to alert all lower end tiers. SAS