CBRS Overview Todd Gore VP Sales 3.5 GHz CBRS Update | Commercial in confidence | © Ericsson AB 2017 | 2017-08-25 | Page 2

Overlaps Global Bands 42 & 43 3.5 GHz (CBRS) – innovation band 150mhz of shared spectrum to spur innovation 150 MHz Spectrum Overlaps Global Bands 42 & 43 Spectrum Band Structure 3550 MHz 3650 MHz 3700 MHz Incumbent Uses, Priority Access Licenses and General Authorized Access A B C D E F G PAL Incumbent Uses, WISPs and General Authorized Access Federal FSS GAA 3GPP B48 – CBRS TDD Federal Incumbents Priority Access Licensees General Authorized Access (licensed by rule / unlicensed) Spectrum Band Architecture SAS ESC Coverage FSS Protection … 150 MHz of shared spectrum Spectrum Access System (SAS) provides spectrum management Incumbents – Naval radars that use the band infrequently; FSS; WISPs Priority Access – finite term license for interference protection General Authorized Access – no license required, SAS authorization for unprotected usage Todd Gore 3.5 GHz CBRS Update | Commercial in confidence | © Ericsson AB 2017 | 2017-08-25 | Page 3

Division of the 3.5 GHz band CBRS as proposed by FNPRM Light. Lic. Originally proposed mobile allocations + WISP rules in light licensing band Radar FSS Incumbents WISP Part 90 Commercial Users 3550 3600 3650 3700 Tier 1 Radar FSS C-band downlink Tier 2 PAL (≤ 70 MHz) WISP GAA (80-150 MHz) Current status: CBRS Report and order WISP Users grandfathered until April 2020 or license expiry and eligible for GAA as per Part 96 rules Tier 3 Todd Gore 3.5 GHz CBRS Update | Commercial in confidence | © Ericsson AB 2017 | 2017-08-25 | Page 4

Todd Gore 3.5 GHz CBRS Update | Commercial in confidence | © Ericsson AB 2017 | 2017-08-25 | Page 5

Todd Gore 3.5 GHz CBRS Update | Commercial in confidence | © Ericsson AB 2017 | 2017-08-25 | Page 6

Execute CBRS PAL Petitions Execute CBRS & Pal Changes CTIA Petition 10 Year License Term With Renewal Expecations PEA (416) Instead of Census Tracts (74K+) CBSD Registration Information Confidentiality T-Mobile Petition (CTIA Petition+) Auction all 150 megahertz of spectrum in the 3.5 GHz band as PALs, with GAA use opportunistically throughout the band Make all PALs available at auction, regardless of the number of applications received Permit bidding on specific PAL blocks Make minor changes to the technical rules governing the 3.5 GHz band (OOBE, Power Levels) Execute Execute

CBRS NPRM Adopted October 24 Seeks comment on changes to PAL license terms: License Area (Census Tracts?, PEAs? Counties?) 10 years terms Expectation of renewal Allow partitioning / disaggregation Splitting up the 10 MHz licenses into smaller license areas to be planned by the SAS to enable sub-licensing. Technical rule changes: Revisions for facilitating wider bandwidths Remove obligation to publish registration data T-Mobile request for PALs across the band is denied in the Order.

NEW CBRS Timelines 2017 2018 2019 Device Ecosystem PAL Petitions FCC 3Q 4Q 1Q 2Q 3Q 4Q 1Q 2Q 3Q 4Q Device Ecosystem B42 Trial Devices B48 Trial Devices (QC X16 & GCT) B48 Commercial Quality Devices (QC X20 & GCT) B48 Capable Smartphone CTIA & TMO Petitions & Comments PAL Petitions NPRM – PAL Petitions 3rd Report & Order PAL Auction PAL Operations FCC Infrastructure Certification Device FCC Certification CBSD FCC Certification SAS FCC Certification ESC FCC Certification & Launch GAA Operation PAL Operation Todd Gore 3.5 GHz CBRS Update | Commercial in confidence | © Ericsson AB 2017 | 2017-08-25 | Page 9

Specifications Todd Gore 3.5 GHz CBRS Update | Commercial in confidence | © Ericsson AB 2017 | 2017-08-25 | Page 10

Commercial CBRS Devices GAA Launch End 3Q18 Smartphone – Maybe 2H 2018?? With Qualcomm Commercial X20 Chipset: NOW Baicell CPE BEC CPE ZMTel CPE Sierra Wireless Modules With GCT commercial chipsets: NOW Infomark MiFi Device Sercomm MiFi Dongle SeowonIntech CPE BEC CPE

3.5 GHz USE CASES FIXED WIRELESS ACCESS OUTDOOR (Capacity & Neutral Host) USE CASES IN-BUILDING (Capacity & Neutral Host) Private LTE Network Todd Gore 3.5 GHz CBRS Update | Commercial in confidence | © Ericsson AB 2017 | 2017-08-25 | Page 12 3.5 GHz CBRS Update | Commercial in confidence | © Ericsson AB 2017 | 2017-04-26 | Page 12

CBRS Architecture CBSD: Citizens Broadband Radio Service Devices eNodeB OSS CBSD: Citizens Broadband Radio Service Devices Basestation / eNodeB May interface SAS directly or via Proxy / Network Manager SAS: Spectrum Access System Database Allocates allowed spectrum and maximum transmission power to CBSDs based on location Provides interference protection: PAL/GAA to Incumbents, PAL to PAL, GAA to PAL ESC: Environmental Sensing Capability Detects signals from Incumbents and informs SAS SAS re-allocates CBSDs as needed Operator Network Figure 3 – Illustrative End-to-End Citizens Broadband Radio Service Architecture WinnForum now defining architecture further Todd Gore 3.5 GHz CBRS Update | Commercial in confidence | © Ericsson AB 2017 | 2017-08-25 | Page 13 3.5 GHz CBRS Update | Commercial in confidence | © Ericsson AB 2017 | 2017-04-26 | Page 13

CBRS Definition Ecosystem WInnForum Five Working Groups WG: Requirements, Security, Protocols, Certification, Operations Ten Task Groups PAL, Coexistence, Propagation, Information-sharing, Professional Installer, Domain Proxy, Exception Management, CBSD-CBSD, Measurement Reporting, PN 3650 3GPP Band Definition Shared Spectrum in 3.5 GHz FCC Regulation Second Report and order issued May 2, 2016 Leasing arrangements for PAL defined Power classes simplified CBRS Alliance Formed Charter: LTE-family approach to CBRS Todd Gore 3.5 GHz CBRS Update | Commercial in confidence | © Ericsson AB 2017 | 2017-08-25 | Page 14 3.5 GHz CBRS Update | Commercial in confidence | © Ericsson AB 2017 | 2017-04-26 | Page 14 3.5 GHz CBRS Update | Commercial in confidence | © Ericsson AB 2017 | 2017-04-26 | Page 14

3.5GHz C BAND STATUS Todd Gore

Band Allocations in 3100-4200 MHz 3200 3300 3400 3500 3600 3700 3800 3900 4000 4100 3GPP LTE Band 42 3GPP LTE Band 43 L-3 CyTerra through-wall radar 3GPP LTE Band 48 (US Only) Marine Coastal Radio Service RADIOLOCATION CBRS (3.5 GHz Band) Fixed P2P Microwave AN/SPY-1 Radar (Aegis) SPN-43 Radar Earth exploration-satellite Space Research Mobile Amateur FSS Rx-Only Earth Stations NOTE: Grandfathered Wireless Broadband Licensees occupy band from 3650-3700 MHz Todd Gore

5G Spectrum – C-BAND Potential for alignment with CBRS band Under consideration across the world Propagation and speed Ericsson’s comments: FCC should pursue licensed spectrum using market-based mechanisms to clear the 3.7-4.2 GHz band Pursue unlicensed technology in 5.9 – 6.4 GHz and licensed technology in 6.4 – 7.1 GHz provided incumbent fixed operations are protected across 6 GHz Proposal for FCC and NTIA to work to make 7.1 – 8.5 GHz a shared band between commercial and federal users of fixed services Todd Gore

MID-BAND COALITION Diverse membership, including operators, trade associations, manufacturers, and the Wi-Fi community. Focus on 3.7 – 4.2 GHz as a licensed band, 5.9 – 6.425 GHz unlicensed, and a question about how to treat 6.425 – 7.125 GHz. Sensitivities over fixed links in the 6 GHz band and incumbent satellite users. Intel/Intelsat proposal: market-based approach to allow terrestrial access to important markets. Apple, Broadcom, Cisco, Comsearch, Ericsson, Hewlett-Packard Enterprise, Intel, Google and Alphabet Access, Samsung, T-Mobile, and Verizon Todd Gore

Thank you Todd Gore