9th November 2016Technologies and Experience of CDN Based Broadcasting Platform

Yong-Hwan HoManager of Network Technology R&D CenterSK Telecom

Technologies and ExperienceOf CDN Based Broadcasting Platform

Nov 9, 2016

1. SK Telecom Overview

2. SK Telecom LTE Experience

3. Change of CDN Business in Korea

4. CDN Based Broadcast Technologies

- Media Platform Architecture

- Mobile IPTV / T Live Streaming

- Mobile Social Broadcast Platform

5. 5G [R]evolution

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【 Corporate Strategy 】

1. SK Telecom Overview

SK Telecom(SKT) provides integrated telecommunication services and pursues growth biz.through transforming to Lifestyle, IoT and Media Platform Provider

【 Subscriber & ARPU Trends 】

SK Telecom is on the verge of transforming into a next generation platform player

- Lifestyle Platform: enrich user life style value

- Media Platform : provide optimally personalized contents and seamless user experience

- IoT Platform : Improve convenience and productivityby collecting/analyzing data from all things

LTE Market/Tech Leadership boosts penetration subscribers and steady growth in ARPU

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SKT is Korea’s first mobile communication company and one of the global leading ICT companies.

LTE Technology Leadership

Awarded in Small Cell Industry 2015“Commercial Deployment & Judge’s Choise”

Awarded in Telecom Asia2015“Most Innovative Telecom”

Awarded in MWC 2016“Best Technology Enabler”

Top ranking in Korea Customer Satisfaction Indexfor 18 Consecutive years

18 years 18 years 16 years 9 years

2. SK Telecom LTE Experience

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SKT took fast LTE Roll-out completing nationwide coverage for coping with data traffic explosion and improving customer’s QoE via relevant Multi-Carrier & CA technologies

【 Data Usage & Traffic Forecast 】 【 Rollout Strategy based MC/CA 】

Monthly LTE Data Usage per subscriber has reached about 6.1 times of 3G’s (‘15.4Q)

SKT took fast LTE overlay Roll-out via MC/CA technologies for market and customer demand

850MHz

Seoul(‘11.2Q) 84 Cities(’11.1Q) Nation-wide(’12.2Q)

1.8 & 2.1GHz

World First 800MHz+1.8GHz2 Band CA (‘13.6)

World First Wideband

Nation-wide (’14.6)

World First Wideband

+ 3Band CA (’15.1)

2. SK Telecom LTE Experience

※ 3 Band: 850MHz + 1.8GHz + 2.1GHz

Most of traffic is a Multimedia(60%) and it is expected it will be almost 80% in 2019.

LTE User Traffic = 4.3GB

3G User Traffic = 0.7 GB

※ Source: SK Telecom

’16 ’17 ’18 ’19

CAGR57%

Total TrafficMultimedia Traffic

60%

79%

※ Source: Cisco VNI, 2015

- Secure new spectrum and launch Carrier Aggregation

- Secure nation-wide coverage in a year

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Market size by CDN Solution ($Million)

Online Video Sol. 862 1099 1415 1835 2409 3171 4190 30.2

CDN Delivery 826 966 1341 1584 1873 1873 2218 17.9

Analytic &Monitor

85 91 99 108 118 130 144 9.24

Encode & DRM 982 1205 1493 1866 2338 2944 3730 24.9

Transparent Cache

250 343 473 661 933 1328 1882 40.0

0

2000

4000

6000

8000

10000

12000

2013 2014 2015 2016 2017 2018 2019

$ M

illion

[Video Portal] [Broadcast] [E-learning] [Advertisement]

3. Change of CDN Business in Korea

Ref: Markets and Markets Analysis, 2014

CDN Market Size In Korea ($Million)

CAGR 4.4%

$ Million

53.3 59.4 69.4 78 90

117 120 123 125.5 128.8

0

100

200

300

14 15 16 17 18

Local to Global Local to Local

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SKT has set up media platform architecture to offer not only media delivery but also whole function to make internet broadcasting service

Media Platform Architecture4. CDN Base Broadcast Technologies

Media

S

erv

ice L

ayer

Media

Infr

a La

yer

B2C 서비스 포탈B2B Service Portal(VCase, MCN Portal.)

B2C 서비스 포탈B2C Service Portal(Oksusu, OTT, IPTV)

API La

yer

SubscriberMgmt.

Billing &Auth.

Op

en M

ed

ia C

om

mon P

latf

orm

MobileNetwork

Global Network

FixedNetwork

Live Contents

VoD Contents File Uploader

IP Only

SDI/IP Converter

IP Only

IP/SDI Converter

File Downloader

OTT

IPTV

Broadcast

MCN

Media Service Management API

Media Platform Open API & SDK

vCache vStreamerMedia Accel.

Engine

Media Deliver Indicator

Infrastructure Abstraction

Media Process Scheduler

vEncoderDB/

BigData

Media ServiceApp.

Container

Resoure Alloc. App Distributer Multi Commander App Repo.

Recording /Archive

StreamSwitch &Time Shift

360 AR / VR

Live/VoDEncoding / Trans.

Smart URLIndicator

BroadcastProgramming

DRM

Analytics

One time URLgenerator

Processing PublisherSecurity & Analysis

ChattingInjector

Ads. Mgmt.& Injector

Device&RegionDetector

Value added

Media vInfra Management API

Policy

Flow

Mgr.

Analy

sis

Sta

tist

ics

Orchestrator

Repository

Storage Memory

Processor

CPU GPU

B2C 서비스 포탈SKT Video Solution(T View, T Real)

Open H/W (Head End/IDC/AWS)

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SKT provides mobile IPTV service called Oksusu and has developed LTE convergence solution for more valuable broadcast service through lower delay

【 Mobile IPTV : Oksusu 】

Provide premium media contents for LTEsubscriber(movie, entertainment show, etc.)

Live broadcasting, movie, VoD

HD/FHD support Curation and

recommendation etc.

Mobile IPTV4. CDN Base Broadcast Technologies

【 T Live Streaming 】

[In T V B roadcasting] [In M obile Live T V ][In T V B roadcasting] [In M obile Live T V ]

SKT/B BTV Mobile User Other’s Mobile User

More than 10s

Low-delay real-time broadcasting service- Only 3 secs delay comparing to conventional mobile

broadcasting services

- Improve user QoE with synchronization between UEs

True real-time live streaming adaptation service- Change video resolution, packet and buffer size rapidly

according to network environment

Low-delay broadcasting streaming service- Provide personal broadcasting streaming with very low

delay and also inter-connecting with multiple devices

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Broadcast Platform

Encoding, DVR, DRM, Schedule, NVoD, CMS…Live

Casting

MCN Channel

Social Network

TutoringService

MobileIPTV

T-Live Streaming

AdInjection

Publishing Site

Broadcasting Delay : ~5 Sec, Difference between Devices : ~1 Sec

Seoul

Busan

Mobile Social Broadcast Platform4. CDN Base Broadcast Technologies

Cloud Broadcasting Platform

- B2B2C platform for who want to make internet

broadcast service

- Whole function supported to make broadcast

service as a cloud

Low delay mobile broadcast

- End to end delay 5sec in LTE

Enterprise grade broadcasting platform

- Camera SDK/Live Production Tool/CMS/Transcoder

monetize/ DVR/Archiving /N Player…etc

Location based personalize advertisement

SKT developed Mobile Social Broadcast Platform for MCN, personal contents service provider as a cloud service

【 Overview 】 【 3 Major Features】

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SK Telecom’s 5G architecture consists of 3 layers: 1) Hyper-connected radio, 2) All-IT infrastructure, and 3) Innovative services

【 SKT 5G Architecture 】

【 5G Roadmap】

5. 5G [R]evolution Roadmap to 5G

Telco

service

UHD &

Hologram

Massive

IoT

Mission-

Critical IoT

Network slices

Telco/IT functions

Virtualization

O&

M

Low-costsmall cell

Massive MIMO

f1

Unlicensed,

Millimeter-wave

f2

fn…

fm

New waveformCloud-RAN

Cloud

Core

Orch

estra

tion

Cloud-RAN

Telco API

UnifiedTransport

Hyper-connected radio

Innovative Servicesfor virtual experience, massive IoT, critical IoT

All-IT Infrastructurefor value creating network, monetization

for massive and multi-Gbps connectivity

Trial service in 2017 and commercialize in 2020

’16 ’17 ’18 ’19 ’20

Trial Service Commercial5G

TestBed/Pilot

Rel-14 Rel-15(1st) Rel-16(2nd)

5G Requirements Spectrum > 6GHz

Spectrum< 6GHz Spec. Freeze

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With the aim to secure leadership in the upcoming era of 5G, space to provide 5G customer experience and develop 5G service technologies

5. 5G [R]evolution 5G Services

• 5G Based Live Production

Together with Sony, ‘4K UHD live

broadcasting system’ in 5G era

without relay equipment

• 5G Robot

Teleoperation of 5G humanoid

robot by transmitting control signal

from motion suit to humanoid

• T-AR for Tango

One-stop service for users to easily

develop and execute an AR service

by accurately learning 3D space

• Remote AR

Remote Augmented Reality built

with space recognition and

gesture/motion sensing tech..

• Beyond Surface

Table-top device providing

multiple users with futuristic

experience and independent tasks

• Immersive Experience Room

Virtual environment through action

camera and ultra-low latency

streaming equipment

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