CBRS Exam Questions & Answers
A CPI needs to record the _______ and _______ with in 50 meters or better. - ANS - latitude and
longitude
CBRS - ANS - Citizens broadband radio service and shared spectrum.
CBRS band - A
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CBRS Exam Questions & Answers
A CPI needs to record the _______ and _______ with in 50 meters or better. - ANS - latitude and
longitude
CBRS - ANS - Citizens broadband radio service and shared spectrum.
CBRS band - ANS - 3550 - 3700 MHz frequency range and established by FCC in 2015.
CBRS vision - ANS - Used for fixed and mobile broadband services.
advantages of CBRS - ANS - 1. Efficient
2. Time to market.
3. Cost
4. Feasibility
SAS (Spectrum access system) - ANS - Is the centralized cloud service that manages CBRS
transmission to protect higher priority users from interference.
The three main entities for CBRS - ANS - 1. FCC
2. Winnforum
3. CBRS Alliance
CPI (certified professional installer) - ANS - 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 - ANS - Tier 1. Incumbent
Tier 2. PAL ( Priority Access License)
Tier 3. GAA (General Authorized Access)
Tier 1 Incumbents - ANS - Services using the band before CBRS was around.
Tier 2 PAL - ANS - CBRS user that pay for a license at auction to receive interference
protection.
Tier 3 GAA - ANS - Is free to use by any opportunistic users.
What does the SAS do? - ANS - The SAS gathers information from data bases maintained by the
FCC to ensure lower priority user are not interfering with higher priority users.
CBSD - ANS - Are devices that transmit in the CBRS band to end users.
CBSD need what before that can transmit in the CBRS band? - ANS - 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. - ANS - Domain Proxy
EUD - ANS - End User Device.
The SAS can ________ or __________ access. - ANS - Allow or disallow
When the SAS detects an incumbents user all lower end user must get out of the way within
_______. - ANS - 5 minutes
ESC - ANS - 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. - ANS - SAS
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