Citizens Broadband Radio Service - Spectrum Management · 2018-05-16 · Citizens Broadband Radio Service An Update NSMA May 16, 2018 Mark Gibson

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


PCAST Spectrum Access System


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)


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


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


CBSD Examples


CBRS Device OEMs


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…


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).


Graphical representation of

the GWPZ methodology


Registered Grandfathered Wireless Protection Zones


Zoomed In Example


Fixed Satellite Systems


Federal Radar Systems: Original Concept (Protection Zones)


Federal Radar Systems: New Concept: Dynamic Protection Areas (DPAs)


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


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


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


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


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


IIoT (Industrial IoT)

Timeline & Certification


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


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


WInnForum & CBRS Alliance Standards


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


WIRELESS INNOVATION FORUM

250+ Participants, 60+ Organizations

Regulatory Status


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


License Market Areas: Census Tract


License Market Areas Example: CMA

Other Potential Bands


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


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!

Documents

Citizens Broadband Radio Service - Spectrum Management · 2018-05-16 · Citizens Broadband Radio Service An Update NSMA May 16, 2018 Mark Gibson