0 SK Telecom Proprietary 2018

1 SK Telecom Proprietary 2018

1996~2002 2006 2011.7 2012.7 2013.6 2014.6 2014.12

5G

~10Gbps

800MHzBandwidth

28GHz

World’s First Korea’s First World’s First World’s First World’s First World’s First

2016.6 2019~

World’s First

100MHzBandwidth

3.5GHz2G3G 4G/LTE

75Mbps2CC CA(20MHz)

Multi-Carrier

LTE-A500Mbps

LTE-A Pro700~900M

bps

LTE-A Pro1Gbps

LTE-A300MbpsLTE-A

225MbpsLTE-A

150Mbps

2CC CA(30MHz)

3CC CA(40MHz)

3CC CA(40MHz)

256QAM

5CC CA(70MHz)

256QAM

2017.6

3CC CA(50MHz)

900Mbps

700Mbpsor

2018.1H

CDMA1x & EVDO WCDMA/HSDPA

World’s First

2CC 4x4

256QAM

3CC CA(50MHz)

3CC 4x4

256QAM

leading mobile network evolution to 5G

SK Telecom Mobile Network History and 5G

2 SK Telecom Proprietary 2018

5G Commercialization and Services

3GPP5G standard

2017 2018 2019 2020

5G SI

‘17.3 ‘19.12

Release 15

‘18.6

Release 16

5G NR WI Phases 1

R15 early-drop completion

(NSA)

5G phase 1 (SA) completion

‘17.12 ‘18.6 ‘19.12 (tentative)

Release 17

5G NR WI Phases 2

5G phase 2 completion

R15 late-drop completion

‘18.12

5G Commercial Service (with 3GPP compliant infra/device)

5G Commercialization

Remote SurgeryVirtual Education Autonomous DrivingSmart Factory

5G Commercialization will be initiated in 2019 1Q

3 SK Telecom Proprietary 2018

Beyond 5G Technologies Requirement for Telecom Operators

5G service may be expensive

1. Cost effective with better performance2. Innovative Services

Customer’s satisfaction

Beyond 5G TechnologyRequirement

Source : Forbes

The goal is to provide innovative services with less investment

4 SK Telecom Proprietary 2018

Fiber Optics to Wireless

Expensive for rent, construction, and management

Internet

First version to wirelessFWA (Fixed Wireless Access)

Multi-10G Fronthaul/backhaul networksWireless terabit networks

Source: Samsung

The last wired network needs to be replaced with wireless networks with tera bps

5 SK Telecom Proprietary 2018

Terahertz Band Communications

• Broad bandwidth• Very small antenna • Power consumption (DAC/ADC, RF/PHY)• Short coverage

Data Center

Terahertz TerahertzTerahertz

NR (>6GHz)NR (<6GHz)

【 Terahertz Network Architecture 】

Terahertz band communications will play a key role for substitute for fiber optics

【 Characteristics and challenges】

6 SK Telecom Proprietary 2018

Cell-based to Cell-free Network Architecture

Cell-based Network• Inter-cell interference at cell edge• Same investment for areas with a few mobile users

Less Investment &Better Performance

Cell-free Network• Low interference due to user centric coverage• Less investment using cooperative beamforming

Cell-free network allows to maximize network performance with less investment

7 SK Telecom Proprietary 2018

Massive MIMO and RAN Virtualization for Cell-free Network

Data Center

VirtualizedN/W functions

• Base station with only antenna and RF• Flexibility for rollout • Maximizing network performance • Cost-effective network configuration

Cloud RAN

VirtualizedN/W functions

E2EControl

Massive MIMO

Fully virtualized RAN with Massive MIMO supports cell-free network

8 SK Telecom Proprietary 2018

5G V2X for Autonomous Driving

5G V2X

ITS

IoT

V2X

ADASSensor

MissionCritical Service

V2XMap

HUD/AR

Low latency high reliability Realtime processing Big data transmission

V2X using 5G RANs is currently being standardized for autonomous driving

9 SK Telecom Proprietary 2018

Non-Terrestrial Networks for Autonomous Flight/Voyage

Broad coverage Long latency Low Capacity (~100Mbps)

NTNsNon-Terrestrial Networks with extremely broad coverage are essential for autonomous flight in the sky and autonomous voyage at sea in the future

【 Characteristics 】

10 SK Telecom Proprietary 2018

Evolution of Non-Terrestrial Networks

Delay Requirement ~10msec

Ultra-high throughput NTNs with low latency become a fundamental technologyin the future where everything moves freely on its own

Source: Fraunhofer

Source: 3GPP

11 SK Telecom Proprietary 2018

Enabling Technologies for Future Networks

1. Terabit Communications with Tera Hertz Waves

2. Full RAN Virtualization with Massive MIMO for Cell-free Networks

3. Ultra-high Throughput Non-Terrestrial Networks with Low Latency for Autonomous Flight/Voyage

12 SK Telecom Proprietary 2018