NOVEMBER 4, 2020

One Large Undertaking:

How CBRS came to be in the USA

DAVE WRIGHT

© 2020 Dynamic Spectrum Alliance

Dave WrightPresident | CBRS Alliance

Dave played an instrumental role in the formation of the CBRS Alliance, collaborating with other founding members to create a robust multi-stakeholder organization focused on the optimization of LTE and 5G services in the CBRS band. He served as the Alliance’s first Secretary from its launch in August 2016 and was elected as the President of the Alliance in February 2018.

For his “day job”, Dave leads CommScope’s policy and standards initiatives, ensuring the intersection of CommScope’s technology and product innovations with suitable regulatory environments and technical specifications. Dave is a spectrum champion, advocating for unlicensed, licensed, and dynamic sharing frameworks - recognizing the vital role that all spectrum management regimes play in our increasingly wireless world.

Dave began his odyssey in networking/telecom/mobile/wireless in the early ‘90s while serving in the US Marine Corps. He then transitioned to the commercial sector as a systems engineer. In the intervening years he has spent much of his time in Technical Marketing, Standards Development, and Policy Advocacy. Dave is a Cisco Certified Internetworking Expert (CCIE) Emeritus (#2062), a Certified Wireless Network Administrator (CWNA), and a CBRS Certified Professional Installer (CPI).

Guest Speaker

One Large Undertaking:How CBRS came to be in the USA

What is CBRS? 3-Tiered Spectrum Sharing in the US

Opens 150 MHz of prime mid-band spectrum for widespread commercial use

Incumbents are protected from harmful interference from PAL and GAA

PAL has priority over GAA, licensed via auction, 10 MHz blocks, up to 7 licenses

GAA can use any available spectrum, yields to PAL and incumbents

Incumbents

Priority Access Licenses (PAL)

Tier 1

Tier 2

Tier 3

PAL

FWA (Part 90)

3550 3600 3700 MHz3650

GAA

FSS RxMilitary radar: Ship-based Ground-based

General Authorized Access (GAA)

CBRS Alliance Membership – 188 Strong and Growing

1 Accord Technologies, LLCABIT CorporationAccelleranAccuver Americas, IncADRF TechnologiesAffirmed Networks, IncAgri-Valley Communications, IncAirspan NetworksAirtower NetworksAirwavz SolutionsAlefEdgeAllen Vanguard Wireless, LLCAlpha WirelessAltiostar NetworksAmdocs Management LimitedAmit Wireless Inc.ANS Advanced Network Services, LLCAnterixAricentARQ, LLCArterra MobiliyAskey Computer Corp.ASOCSAT&TAthonetATN InternationalAvistaBaicells Technologies Co., Ltd.BallastBearcom

Mavenir Systems, IncMetro Network ServicesMicrosoftMidcontinent CommunicationsMobilitie, LLCMonogoto, LtdMS Benbow & AssociatesMulti-Tech Systems, IncNetNumberNextGen Global Resources, LLCNRTCNsightOnis SolutionsPanasonicParsec Technologies, IncPavlov Media, IncPCTESTPierson WirelessPivot Technology Services CorpPulse Signal SolutionsQuadGen WirelessQualcommQuantum WirelessQUCELLQulsarQuortus Ltd.Radio Frequency SystemsRadisys CorporationRakuten USA, IncRANlyticsRanplan Wireless, LLC

The Antenna CompanyThe QuiltThinkRF CorpTilson T-Mobile USATransit WirelessTrextel, LLCTruAccess NetworksTruConnectTulinx B.V.U.S. CellularUbicquiaUniversity of New MexicoVedanta Telecom, LLCVerizon CommunicationsVertical Bridge Holdings LLCVirtual Network Communications Inc.View, IncVivint Wireless, Inc. Widelity, IncWilson ElectronicsWinncom TechnologiesWireless Information NetworksWireless System SolutionsWispaWytec International, IncXchange TelecomZenFi NetworksZinwaveZyxel Communications Corporation

Barich, IncBEC Technologies, IncBlack BoxBLinQ NetworksBlueArcus TechnologiesBluegrass CellularBranch CommunicationsBTI WirelessCable Television Laboratories IncCambium NetworksCambridge ConsultantsCasa SystemsCellAntenna CorporationCelona, IncCenterline CommunicationsCharter CommunicationsCisco SystemsClearLink CommunicationsClearSky TechnologiesCodium NetworksComba Telecom, IncComcast CorporationConnected Devices, IncCorporationCTSConnectivity Wireless SolutionsContour NetworksCorning Optical CommunicationsCox CommunicationsCradlePointCrown Castle

CTIADEKRADell TechnologiesDigi InternationalDish NetworkDruid SoftwareEncore NetworksExteNet Systems, Inc. FacebookFibrolanFreedomFi, IncFrontier CommunicationsFujitsu Network CommunicationsGemtek Technology Co., LtdGlobal Technology AssociatesGranite TelecommunicationsHCL TechnologiesIbwaveInsta DefSec OyIOT4NET, Incip.access LimitedJ Plus, IncJMA WirelessKeysight Technologies, IncKLA Laboratories, IncKleos UK LtdKore WirelessLandMark Dividend, LLC

Rebel LTE, LLCRedline CommunicationsRF ConnectSamsung Electronics America Inc.SBA CommunicationsSeowonintech Co., LtdSequans CommunicationsSercomm USA, IncSGS North America, IncSierra WirelessSmart City HoldingsSolidSony CorporationSporton International, IncSquanStar Solutions International, IncStepCG, LLCSuper Micro Computer, IncSureSite Consulting Group, LLCSyniverse Technologies, LLCTango NetworksTeal CommunicationsTecore Government Services, LLCTeleworld Solution, IncTelitTelrad NetworksTelsasoftTerranet Communications, LLCTessco Technologies, IncTexas A & M University

Supporting a Wide Range of Use Cases

It’s been a Busy Year…

• Many Tens of Thousands of Base Stations• Category A (low power) & Category B

(higher power)• Indoor and Outdoor• Mobile Broadband, Fixed Wireless,

Private, & Inbuilding Cellular use cases

Ecosystem Expanding Rapidly• Equipment Authorizations (100+ Base

Stations, 140+ Client Devices)• 5 authorized SAS Administrators• ~2000 Certified Professional Installers• OnGo 5G NR Specs (Release 3)

Deployments since GAA Authorization

Unprecedented Industry / Government Collaboration

Bringing OnGo to market required close industry and government collaboration. There’s been an unprecedented amount of coordination and joint development.

• Dynamic Protection Areas (DPAs)• Environmental Sensing Capability (ESC) and Portal Activation• NTIA (ITS) Testing of SAS & ESC Systems

No reports of harmful interference to incumbent operations since ICD authorization in September 2019.

Dynamic Coordinationfrom “Experiment” to Commercial Reality

Priority Access License (PAL) Auction

data source: CommScope Spectrum Atlas

There were a total of 228 bidders who secured licenses

“This auction has already exceeded my most optimistic estimates.”Sasha Javid, COO

BitPath

“The 3.5 GHz auction has concluded, and I can say unequivocally: It was a resounding success.” FCC Chairman Ajit Pai

Challenges and Lessons Learned

• It was a Large and Entirely New Undertaking – and therefore took a good amount of time to develop, test, authorize, and commercialize

• Additional complexities associated with sharing with military systems (e.g. Operational Security), early government/industry engagement is key

• Sensor-based approach has introduced other “knock-on” impacts –e.g. protection of sensors from interference, next generation military systems, etc…

• Informing Incumbent Capability (IIC) is now the focus for the 3450-3550 MHz band, and may be applicable to CBRS as well

• Pending introduction of high power TDD services above 3700 MHz (C-Band) and below 3550 MHz (3450-3550 MHz)

Global Activity• Private / Local Spectrum Allocations

• Large and growing list of countries making some spectrumin mid-band (particularly 3.4 - 4.2 GHz) available*

e.g. UK, Germany, France (2.6 GHz), Brazil, Belgium, The Netherlands, Sweden, Poland, Croatia, and Slovenia

• The CBRS sharing framework is specific to 3550-3700 MHz in the United Statesand tailored to protect the unique incumbencies in the US

[Where dynamic coordination is implemented, we encourage the exploration of existing protocol interfaces, such as the WInnForum SAS-CBSD interface]

• However, much of the Alliance’s experience and work products may be helpful / relevant in these other countries and bands. Examples include:

• Formation of a large and diverse ecosystem• Private Network Deployment Guides• Neutral Host Architectures (NHN, MOCN, etc…)• Private Cellular Identifiers (Shared HNI, IMSI Blocks, etc…)

* Private Mobile Networks, October 2020, GSA

https://gsacom.com/paper/private-mobile-networks-october-2020-update/?utm=reports4g

One Large Undertaking: �How CBRS came to be in the USAGuest SpeakerOne Large Undertaking:�How CBRS came to be in the USAWhat is CBRS? 3-Tiered Spectrum Sharing in the USCBRS Alliance Membership – 188 Strong and Growing �Supporting a Wide Range of Use CasesIt’s been a Busy Year…Unprecedented Industry / Government CollaborationDynamic Coordination� from “Experiment” to Commercial RealityPriority Access License (PAL) AuctionChallenges and Lessons LearnedGlobal ActivitySlide Number 13