Citizens Broadband Radio Service
An Update
NSMA May 16, 2018
Mark Gibson
© 2018 Comsearch, A CommScope Company | v18.522
• CBRS Background
• Incumbent Protection
• Some Use Cases
• Timeline & Certification
• Regulatory Status
• Other Potential Bands
Citizens Broadband Radio Service
Background
Available for sharing in Location, Frequency and Time
What is Spectrum Sharing? Location
Time
Frequency
5 © 2018 Comsearch, A CommScope Company | v18.5
Incumbent
Primary
Access
Secondary Access
Registers w/Database
Might be high power
Possible spectrum fees
Possible allowance for “public good”
General Authorized Access
Low Power
Sensing and/or database used to determine access
availability
No spectrum fee
July, 2012
3-Tier Concept The Federal Government, using industry
partners, [should] establish a new Federal
Spectrum Access System (SAS) that will
serve as an information and control
clearinghouse for band-by-band spectrum
registrations and conditions of use and
allow non-Federal users to access
underutilized spectrum in Federal bands.
The SAS will put into practice the
fundamental principle that underutilized
spectrum capacity should be used or
shared to the greatest possible extent.
Authorized Federal and Grandfathered FSS
Grandfathered Wireless Broadband
“Use It Or Share It”
Reverts to
GAA in 2020
© 2018 Comsearch, A CommScope Company | v18.566
PCAST Spectrum Access System
© 2018 Comsearch, A CommScope Company | v18.57
What is CBRS?
CBRS is the Citizens Broadband Radio Service, which is a new shared-
spectrum scheme is being introduced in the U.S. at 3.5 GHz.
It promises to unblock the logjam by opening up new spectrum for almost
anyone to use with standard LTE on future mainstream smartphones.
CBRS users’ spectrum operations are managed by a Spectrum Access
System (SAS) and Environmental Sensing Capability (ESC)
© 2018 Comsearch, A CommScope Company | v18.588
Spectrum Availability:
Band Allocations in 2900-3700 MHz
2900 MHz 3000 MHz 3100 MHz 3200 MHz 3300 MHz 3400 MHz 3500 MHz 3600 MHz 3700 MHz
MOBILE
RADIOLOCATION
MARITIME
RADIONAVIGATION
Earth exploration-satellite
Space research
FIXED
FIXED SATELLITE
Mobile
Amateur
Fixed Radiolocation
SPN-43 Radar
3500-3700 MHz
AN/SPY-1 Radar (Aegis)
3100-3500 MHz
Band 22 Band 22
Band 42 Band 43
Band 48
3.5 GHz CBRS Band
3550-3700 MHz
9 © 2018 Comsearch, A CommScope Company | v18.5
FSS
3600 MHz
Channel
1
Channel
2
Channel
3
Channel
4
Channel
5
Channel
6
Channel
7
Channel
8
Channel
9
Channel
10
Channel
11
Channel
12
Channel
13
Channel
14
Channel
15
CBRS Band Plan
© 2018 Comsearch, A CommScope Company | v18.51010
Citizens Broadband Radio Service Devices (CBSDs)
Device
Type
Maximum EIRP
(dBm/10 MHz)Limitations
Category A
CBSD
30
(1W)
•Outdoor antenna height limited to 6m HAAT
• If operation exceeds antenna height or max Cat A
powers, it’s subject to Cat B limitations
Category B
CBSD
47
(50W)
•Can only be authorized for use after an ESC is approved
and commercially deployed
• Limited to outdoor operation
•Must be professionally installed
End User
Device (EUD)
23
(200mW)
•Can operate only if they can positively receive and
decode an authorization signal transmitted by a CBSD
•Subject to Cat A/B classification if it operates at power
higher than specified for EUD
© 2018 Comsearch, A CommScope Company | v18.51111
CBSD Examples
© 2018 Comsearch, A CommScope Company | v18.51212
CBRS Device OEMs
© 2018 Comsearch, A CommScope Company | v18.51313
SAS/ESC Providers
F I R S T WAV E ( C O N D I T I O N A L LY C E R T I F I E D ) S E C O N D WAV E
(ESC Only)
Incumbent Protection
PRIVATE AND CONFIDENTIAL © 2018 Comsearch, A CommScope Company | v18.415 © 2018 Comsearch, A CommScope Company | v18.515
Incumbents
Navy Shipborne Radar (SPN-43)3550-3650 in coastal areasOn only 19 shipsTo be replaced in 2025(?) with SPN-50
Military Ground-Based RadarsProtected at three sites:
Pensacola, FLPascagoula, MSSt Inigoes, MD
Operations can extend below 3550 MHz at several sitesOver 50 total GB radars
Fixed Satellite Systems (FSS)In band (3600-3700 MHz) at 35 sitesAdjacent-band operation (3700-4200 MHz) at thousands of sites, but only TT&C sites protected
Wireless Broadband Systems…
PRIVATE AND CONFIDENTIAL © 2018 Comsearch, A CommScope Company | v18.416 © 2018 Comsearch, A CommScope Company | v18.516
Grandfathered Wireless Systems
Operate in 3650-3700 MHz band
“NN” licenses in ULS
Protected from harmful interference until April 2020
Specifically, “grandfathered” licensees will be protected from harmful interference within a contour around base or fixed stations only if:
• (1) the stations were registered in the ULS on or before April 17, 2015; and
• (2) as of a year later (April 17, 2016) the stations are constructed, in service, and fully compliant with the relevant operating rules
Registered: fixed and base stations that have been properly registered with ULS.
Constructed: all infrastructure is in place and operational, including siting, FCC-certified radio equipment, backhaul, power, etc.
In service: network provides ongoing service to unaffiliated, paying subscribers (e.g., broadband service from a Wireless Internet Service Provider) or for bona fide private uses (e.g., utility networks, network backhaul).
Compliance: in compliance with all applicable FCC rules (or operating pursuant to a waiver of those rules).
PRIVATE AND CONFIDENTIAL © 2018 Comsearch, A CommScope Company | v18.417 © 2018 Comsearch, A CommScope Company | v18.517
Graphical representation of
the GWPZ methodology
PRIVATE AND CONFIDENTIAL © 2018 Comsearch, A CommScope Company | v18.418 © 2018 Comsearch, A CommScope Company | v18.518
Registered Grandfathered Wireless Protection Zones
© 2018 Comsearch, A CommScope Company | v18.51919
Zoomed In Example
PRIVATE AND CONFIDENTIAL © 2018 Comsearch, A CommScope Company | v18.420 © 2018 Comsearch, A CommScope Company | v18.520
Fixed Satellite Systems
© 2018 Comsearch, A CommScope Company | v18.52121
Federal Radar Systems: Original Concept (Protection Zones)
© 2018 Comsearch, A CommScope Company | v18.52222
Federal Radar Systems: New Concept: Dynamic Protection Areas (DPAs)
© 2018 Comsearch, A CommScope Company | v18.52323
Federal Radar Systems: CONUS DPAs
Dynamic Protection Areas detail
regions applicable for military radar
protection
DPAs are large enough to ensure
DoD’s OpSec geolocation
obfuscation requirement of 65
nautical miles
DPAs start 10km from the coastline
and extend 200km offshore
DPAs for major ports extend into
the port
DPA size and shape determined by
NTIA/DoD.
DPAs do not overlap
DPAs are defined for all 50 states,
Puerto Rico and Guam
DPAs are established at some
inland radar sites
PRIVATE AND CONFIDENTIAL © 2018 Comsearch, A CommScope Company | v18.424 © 2018 Comsearch, A CommScope Company | v18.524
DPA Protection
Generate a superset of move list for
each DPA
• For each protection point in DPA, a ranked list is created, taking into account of the antenna gain in each beam direction
• Superset is created over all protection points in the DPA
Most offending CBSD list will be
maintained for each DPA
DPA i
Sample ESC locations for DPA i
Category B CBSDs
Category A CBSDs
Dynamic Protection Area (DPA)
AI < DPA_Th on and inside the contour
Radar beam width
Mean side lobe
level, all other
azimuths
PRIVATE AND CONFIDENTIAL © 2018 Comsearch, A CommScope Company | v18.425 © 2018 Comsearch, A CommScope Company | v18.525
Move List Computation
• Base station impact to shipborne radar is
pre-calculated
• Calculations based on all ten 10MHz
channels independently for each
Dynamic Protection Area (DPA)
• Calculations determine which base
stations impact the incumbent shipborne
radar and must either:
• Suspend transmission
• Move to another channel
© 2018 Comsearch, A CommScope Company | v18.52626
Environmental Sensing Capability (ESC)
• Be managed and maintained by a non-governmental entity;
• Accurately detect federal frequency use in the 3550-3700 MHz
band and adjacent frequencies;
• Communicate information about detected frequency use to an
approved SAS;
• Maintain security of detected and communicated signal
information;
• Comply with all Commission rules and guidelines governing the
construction, operation, and approval of ESCs;
• Be available at all times to immediately respond to requests from
authorized Commission personnel for any information collected
or communicated by the ESC;
• Ensure that the ESC operates without any connectivity to any
military or other sensitive federal database or system;
• Ensure that the ESC does not store, retain, transmit, or disclose
operational information on the movement or position of any
federal system or any information that reveals other operational
information of any federal system that is not required to
effectively operate the ESC by Part 96.
3.5 GHz Dynamic Protection Areas
Some Use Cases
PRIVATE AND CONFIDENTIAL © 2018 Comsearch, A CommScope Company | v18.428 © 2018 Comsearch, A CommScope Company | v18.528
CBRS Supports a Mix of Business Applications, Deployment Types & Technologies
Key applications (MobileExperts):
Mobile operators adding capacity
Cable operators/MVNOs reducing cost of mobile coverage
Neutral hosts covering venues and public buildings
Private networks/LTE covering the factory in the industrial area
FWA connecting residential and enterprise broadband
© 2018 Comsearch, A CommScope Company | v18.52929
IIoT (Industrial IoT)
Timeline & Certification
© 2018 Comsearch, A CommScope Company | v18.53131
Market Timeline
Source: CBRS WInnForum Standards
2 0 1 6Q 1 Q 2 Q 3 Q 4
2 0 1 7Q 1 Q 2 Q 3 Q 4
2 0 1 8Q 1 Q 2 Q 3 Q 4
SASs
Software Development + ESC Deployment
FCC
2nd R&O (5/16)
SAS Certification Process
CBSD/Proxy Certification Process
ESC Certification Process
SAS Test & Certification Specs Rel 1
CBSD Test & Certification Specs Rel 1
Release 1 CBSD Test Code Development
Wave 1 Test Lab Accreditation
WIN
NFO
RU
M
GAA Cat A & B
Deployment Starts (Q4)
SAS Cert
ESC CertCBSD IOT
Customer TrialsSAS-SAS IOT
R&O by 6/18(?)
SAS Test & Certification Specs Rel 2
Public Trials
Release 1 SAS Functional Test Code
CPI Certification
Commercial Launch
CBRS GAA deployments should be able to commence in 4Q
© 2018 Comsearch, A CommScope Company | v18.53232
Multi-stakeholder Groups: WinnForum & CBRS Alliance
Detailing common industry and government functionality and
architecture for Spectrum Access Systems (SAS), sensors, and
devices
Interoperability requirements and protocol definition to allow for
open competitive and well-functioning systems
Common framework for testing and integration of components of
spectrum sharing technologies to allow for rapid certification
and deployment and predictability, thus expanding the
ecosystem and increasing utility of the spectrum
Details of requirements, processes, and methods for protection of
incumbent users as required by the spectrum rules
Operational procedures definition for the well -functioning of the
system as it pertains to spectrum assignment, managements,
and interoperability
Evangelize LTE-based CBRS technology, use cases and
business opportunities
Drive technology developments necessary to fulfill the
mission, including multi-operator LTE capabilities
Establish an effective product certification program for LTE
equipment in the US 3.5 GHz band ensuring multi-vendor
interoperability
PRIVATE AND CONFIDENTIAL © 2018 Comsearch, A CommScope Company | v18.433 © 2018 Comsearch, A CommScope Company | v18.533
WInnForum & CBRS Alliance Standards
© 2018 Comsearch, A CommScope Company | v18.53434
Created to “evangelize” LTE-based CBRS technology, uses cases, and business opportunities.
CBRS ALLIANCE
A D O P T E R M E M B E R S
S P O N S O R M E M B E R S
F U L L M E M B E R S
SAS RAN/OEM
SAS RAN/OEMCarrier/MNO
Infrastructure
© 2018 Comsearch, A CommScope Company | v18.53535
WIRELESS INNOVATION FORUM
250+ Participants, 60+ Organizations
Regulatory Status
PRIVATE AND CONFIDENTIAL © 2018 Comsearch, A CommScope Company | v18.437 © 2018 Comsearch, A CommScope Company | v18.537
Current Rulemaking Issues
License Areas
Larger license areas in Urban areas
Smaller in Rural
Longer license and renewal time frames
Allow bidding on specific PAL license block
Spectrum Aggregation Limit
Emission limits
Protection of data on SASs
License Area Max # of Licenses
Census Tract (73,057) 511,399
County (3007) 21,049
CMA (734) 5,138
PEA (416) 2,912
MSA (374) 2,618
FSS
3600 MHz
Channel
1
Channel
2
Channel
3
Channel
4
Channel
5
Channel
6
Channel
7
Channel
8
Channel
9
Channel
10
Channel
11
Channel
12
Channel
13
Channel
14
Channel
15
© 2018 Comsearch, A CommScope Company | v18.53838
License Market Areas: Census Tract
© 2018 Comsearch, A CommScope Company | v18.53939
License Market Areas Example: CMA
Other Potential Bands
© 2018 Comsearch, A CommScope Company | v18.54141
U.S. Spectrum Proposed for SAS (MHz)
96 150 50 475 75
1600
500
3000
5000 5000
502 - 608 3550 - 3700 4940 - 4990 5250 - 5725 5850 - 5925 37000 - 38600 42000 - 42500 47200 - 50200 71000 - 76000 81000 - 86000
TV WHITE
SPACE
CBRS 4.9 GHZ U-NII 2 U-NII 4 37 GHZ 42 GHZ 47 GHZ 70 GHZ 80 GHZ
TV FED GOVT., FSS PUBLIC SAFETY FAA & TV
WEATHER
RADAR
DSRC FED GOVT. ADJ. RAS FSS FS LINKS FS LINKS, RAS
© 2018 Comsearch, A CommScope Company | v18.54242
Future Spectrum Possible for SAS (MHz)
20405
45
500 500350
1375
130
1000
500 500 550
750
2000
2400
1675 -
1695
3100 -
3505
3505 -
3550
3700 -
4200
5925 -
6425
6525 -
6875
7125 -
8500
10550 -
10680
10700 -
11700
11700 -
12200
12200 -
12700
12700 -
13250
13750 -
14500
17700 -
19700
21200 -
23600
1.6 GHZ 3 GHZ 3.5 GHZ 4 GHZ 6 GHZ 6.7 GHZ 7 / 8 GHZ 10 GHZ 11 GHZ 12 GHZ 12.5 GHZ 13 GHZ 14 GHZ 18 GHZ 23 GHZ
FED GOVT.FED GOVT.FED GOVT. FSS FS LINKS
& FSS
FS LINKS
& FSS
FED GOVT. FS LINKS FS LINKS
& FSS
FSS DBS,
MVDDS
BAS, CARS FSS, FED
GOVT.
FS LINKS FS LINKS
Mark [email protected]
Thanks!
Top Related