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TV for Mobile Devices

Technology Retreat 2006

Tom McDonoughSenior Engineering Consultant, AZCAR

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Today’s Agenda

• Introduction

• Mobile TV Defined / Market Opportunity

• Mobile TV Broadcast Technologies (Mobile Media Multicast)

• Modeo Mobile TV Broadcast Network

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What is Mobile TV?

• Yet Another Content Delivery Platform

• Television-like Services to Wireless Handheld Devices− Mobile Phones, Laptops, Portable Media Players, PDAs

• Higher Speed Data Broadcasting (Datacasting) to Handheld Devices

• Multiple Media Types− Linear Channels / Live A/V Streams− Non-linear Channels / A/V File Transfer (Pod or Clip casting)

• Integrated with Cellular (Low speed) Data Services (Web Interactivity)

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Expanding Content Opportunity

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Motivation for Mobile TV

• Last Frontier for Convergence− Broadcasting TV Content to Mobile Devices

• TV-like Services Highly Desirable – Market Research

• Download Short Clips Available Today – 2.5G / 3G

• Single “Media” Device Desirable

• Feature-rich Mobile Phones Becoming a Commodity

• Carriers Need for Enhanced Mobile Services

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Use Cases

• Relaxation at Idle Times− Business Users and Travelers− Movies, Clips, Info Channels, etc…

• Information for Business Users / Travelers− Stock Charts, Weather Forecasts, News

• iPod Generation

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Market Opportunity

• Opportunity for Content Providers− New Content / Channels− Brand Tie-In with Current Channels/Networks

• Opportunity for Telecom Network Providers− New / Enhanced Mobile Services

• New Opportunity for Multicast Network Operators− MediaFLO USA− Modeo (Crown Castle Mobile Media)

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Mobile TV Rollout Timing

• 2004− Early Field Tests in Specific Cities

• 2005− Early Consumer Trials of DVB-H and ISDB-T Worldwide

• 2006− Larger Consumer Trials / Initial Deployments

• 2007− Mass Deployment of Consumer Mobile TV

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Mobile TV Content

• From Giant Screen to Tiny Screen

• New / Re-purpose Content Channels• New Content Providers / New Channel Formats• Choice of Content is Key

• Mobile TV Content Must be Short(er)• Successful 3G Services Provide Valuable Lessons

− Mobisodes Successful Short Content− Specialized Content (Podcast) in High Demand

• New Usage Patterns / Demographics / Advertising Models

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Target Content Format

• Image Resolution - 320 x 240• Frame Rate - 20-30fps• Encoded Bit Rate Range - 200-300kbps• Video Coding – H.264/AVC, VC-1• Audio Coding

− HE AACv2 (MPEG4 High Efficient Profile Advanced Audio Codec)

− AMR-WB+ (Extended Adaptive Multi-Rate - Wideband )− Windows Media Audio Pro LBR (Low Bitrate)

• Small Screen but Quality Expected (iPod, PSP)

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Mobile Media Services Value Chain

• Users

• Content Providers

• Broadcasters (Localized Content)

• Mobile Telecom Operators

• Mobile Multicast Network Operators

• Manufacturers

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Mobile TV Business Model

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Mobile TV Challenges

• Right Mix of Services at Right Price

• Secure Content and Support DRM Efforts

• New and Different Sources of Revenue− Standard TV Services− Enhanced Services (PPV, Interactive)

• Handset Manufacturers− Balance Feature/Function Meets Consumer Expectation− Battery Life, Battery Life, etc…

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Key Requirements

• Transmission System Enable Reception Chain Power Off Cycles− Extend Precious Battery Life

• Service Continuity – Node to Node, Intra/Inter Region

• Robust RF Environment − Enabling Reception Indoor, Outdoor, Moving Vehicle− Immunity to Man-made Noise

• Flexibility in Transmission Bands and Channel Bandwidths

• Independent of Media Data Type/Format

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Mobile Media Multicast Technologies

• Reliable Delivery of High-quality Multimedia/IP Data

• Provide Robust RF Infrastructure

• Multicast Capable

• Hybrid Network Topologies− Cellular Network (Voice Lower Speed Two-way Data)− Multicast Network (High Speed Media Multicast)

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Mobile TV Technologies

• Integrated Services Digital Broadcasting (ISDB-T)

• Digital Multimedia Broadcast (DMB)

• Qualcomm MediaFLO (Forward Link Only)

• Digital Video Broadcast – Handhelds (DVB-H)

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Technology Highlights

• Integrated Services Digital Broadcasting (ISDB-T)− National Transmission Standard for DTV/DAB in Japan− Broadcasting Modes for HDTV and Datacasting / MobileTV− OFDM Transmission, Segmented Band of 13 OFDM Sub-

bands− 1 Sub-band Allocated for Mobile Media Services

• Digital Multimedia Broadcast (DMB)− Data, Radio, TV to Mobile Devices− Satellite (S-DMB) or Terrestrial (T-DMB) Transmission− Based on Eureka 147 / DAB Technology w/ Video− Trials in South Korea, now to China and India− Protocol Stack Raw MPEG4, No IP Layer

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Technology Highlights

• Qualcomm MediaFLO (Forward Link Only)− Purpose-built Media Distribution Technology− Complete System; Systems, Software, Chips− Full Capability, Good Performance, IP for Data Service Only− Proprietary Technology; Compression, Modulation, etc

• Digital Video Broadcast – Handhelds (DVB-H)− Based on DVB-T Standards, Enhancements for Mobile− Data, Radio, TV Services to Mobile Devices− All Services IP-based, Future Proof− Open Standards, Full Capability, Good Performance

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Qualcomm MediaFLO

• Purpose-built Media Distribution Technology• A Complete Mobile Media Distribution System

− Systems, Software, Chips• Optimized for Delivery of Multicast Content

− Streaming A/V− Non-realtime Multimedia File Delivery− IP Data Service

• Forward-Link-Only (FLO) Multicast Network− Separate (Overlay) From Cellular Network− FLO Receivers Integrated into Mobile Phones

• Cellular Network Service Integration− Interactive Applications− Authentication and Authorization

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MediaFLO System Elements

• FLO Technology: New Air Interface− Layered Codec, Layered Modulation, 2-11Mbps/6MHz Channel− Dynamic Channelization / Independent Coding Rate and

Modulation− Wide Area / Local Area channel Integration− UHF Spectrum (>700MHz, up to 2.6GHz), 5-8MHz Bandwidth

• MediaFLO Media Distribution System (MDS)− Software Systems for Content / Service Management− Content Channels, Program Guides, System Information (SI)− Access Control, Subscription and License Management

• MediaFLO USA, Inc.− Network Operator / Service Provider− Nationwide Multicast Network Deployment− Delivers Wireless Operators a Base Package of Audio/Video

Content

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DVB-H

• Primary Enhancements to DVB-T Standards• Additional Feature to Support Handheld Mobile Reception

− Battery Savings− Mobility with High Data Rates, − Single Antenna Reception, SFN Multicast Networks− Impulse Noise Tolerance− Increased General Robustness− Support for Seamless Handover

• “H” Additions− Service Timeslicing (Receiver Off-Time) for Power Savings− MPE-FEC (Multiprotocol Encapsulation) for Additional RF

Robustness − 4K Transmission Mode for Mobility / Network Design Flexibility− 5MHz Mode for Non-Broadcast (DVB-T) Environments

• DVB-H is for IP-based Services via MPE insertion

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DVB-H Functional Blocks

DVB-H Systems

IP Multicast-basedServices

DVB-H IP Datacasting

DVB-HIP Encapsulator

Streaming

Files

ESG

MPE

MPE-FEC

Timeslicing

DVB-HMPEG Transport Stream

Concentrator

DVB-HModulator

IP-basedServices

DVB-HIP Decapsulator

Streaming

Files

ESG

MPE

MPE-FEC

Timeslicing

Ad

ditio

nal

IP E

ncap

sula

tor

DVB-HDemodulator

4k DVB-H TPS

Power Control

Transmitter

Receiver

RF Channel

MPEG-TS (Data)

MPEG-TS (Data)

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DVB-H Specifics

• Service Time-slicing− Reduce Average Power Consumption− Enable Smooth and Seamless Service Handover− Sending Service Data in Bursts at Higher Bitrate− Burst Timing Information Sent (Delta-T for Next Burst)− Receiver Off Between Bursts− May Increase Channel Changing Time

• MPE-FEC− Improved C/N and Doppler Performance in Mobile Channels− Additional Levels of RS Error Correction at MPE Layer− Parity Information (from IP Datagrams) in Separate Sections− Flexible FEC Scheme to Optimize Data-throughput

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DVB-H Content Delivery

• Streaming Media Delivery− VC1/Microsoft WM9Series, H.264/AVC− RTP (Real-time Transport), MSB (Multicast) Protocol− SDP (Session Description) for Stream Information

• File Delivery− Electronic Service Guide (Programming and Services)− Signaling / Bootstrapping Information (SDP and NSC Files)− Audio and Video Media Files (Podcasts)− FLUTE (File Delivery over Unidirectional Transport - RFC3926)− FLUTE Provides Additional FEC Coding

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DVB-H IP Datacast Protocol Stack

Media Streams(Audio/Video)

Media Files(Audio/Video)

Electronic Services Guide

FLUTE (Data Carousel)

XML, SDP, HTML

RTP / MSB (Live)

UDP

IP (Multicast)

MPE Encapsulation

MPEG2/DVB Transport Stream

DVB-H Physical Layer

ServiceLayer

IPLayer

NetworkLayer

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DVB-H Trials (Worldwide)

•Australia− Sydney Trial Services

•Czech Republic− Brno Trial Services

•Finland− Trials, Commercial

Services

•France− Multiple Trial Services

•Germany− Multiple Trial Services

•Italy− Turin Trial (Olympics)

•Netherlands− The Hague Trials

•Portugal− Lisbon Trials

•Singapore− Trials

•Spain− Multiple trials

•United Kingdom− Multiple trials

•United States− Modeo− MediaFLO USA

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US Mobile TV Turf Wars

•COFDM Modulation Scheme•Target Format QVGA@20-30fps•Data Throughput ~6.2Mbps (RF channel Dependant)•Proprietary Technology•Single Vendor (Currently)•Initial Trials•Better Performance•Network Operator•Verizon Partnership

•COFDM Modulation Scheme•Target Format QVGA@20-30fps•Data Throughput ~6.2Mbps (RF Channel Dependant)•Open Standards•Broad Vendor Support•Completed Trials•Good Performance

DVB-HMediaFLO

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Modeo Mobile TV Network

• Crown Castle Mobile Media becomes Modeo LLC

• Crown Castle International Subsidiary− Largest Independent Owner/Operator Wireless Infrastructure− Over 10,000 Tower Sites in US

• Acquired 5MHz Unencumbered Nationwide Spectrum (1670MHz)

• Currently Operating DVB-H Mobile TV Network− Nine Site SFN Network in Pittsburgh PA− Successful Completion of Pilot/Consumer Trial in 2005− Planning Commercial Launch in 2006 Major Markets (NYC)− Targeting Top 30 Markets by 2007− Complete Service Headend Upgrade for Commercial Operation

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Modeo Network Overview

Broadcast NOC

AS

I Mul

tiple

x of

All

Reg

ions

DVB-H TXSatellite TX

DVB-H Signal (1670MHz)

Satellite RX /Deconcentrator

NetworkMultiplex

Single Region

Region SFN (One Node)

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Network Technical Details

• TRANSMITTERS − 9 transmitters (2kW EIRP) in SFN, covering Pittsburgh. 

• BROADCAST BAND AND FREQUENCY− 1670-75MHz − Crown Castle owns 5MHz of L-band spectrum nationwide in USA which was won in

FCC auction, 2003 • DVB-H PARAMETERS 

− 2k mode, QPSK 2/3 or 16QAM 1/2, GI 1/4, time-sliced with MPE-FEC AMOUNT OF BANDWIDTH USED FOR DVB-H Full bandwidth of multiplex in 5 MHz channel, typically ~4 Mbit/s net 

• VIDEO / AUDIO FORMAT  − Video: Windows Media WMV9 , QVGA, 25fps, 250kbps− Audio: Windows Media WMAPro, 32-48kbit/s 

• INTERACTIVITY PLATFORM  n/a • CONDITIONAL ACCESS / DRM TYPE AND PROVIDER  

− Windows Media DRM • HEADEND EQUIPMENT 

− Thales WM Encoders and servers, Thales IP encapsulators, Axcera and Thales transmitters, Kathrein antennas 

• RECEIVER / TERMINAL EQUIPMENT − DiBcom SD module with PDA’s, plus prototype devices from several different vendors

transmitters

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Modeo Headend Data Flow

WMServices

ContentSource

WM9Encoder

WMServices

DVB-HHeadendServices

RegionIP Encapsulator

Timeslice

SDI(Embedded) ASF / IP MSB / IP MC

MPE-FEC

MSB / IP MC

ESG

SFNMIP Inserter

MPEG TS / ASI

DVB-HRegionStream

Concentrator

MPEG TS / ASI

IP MC AdditionalRegions

MPEG TS / ASI

Live Channel Encoding

File ServicesFLUTE

IP MC

DVB-H Service Headend

ContentIngest

NetworkDistribution

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More Information on Mobile TV

•Mobile TV Alliance− www.mdtvalliance.org

•Modeo Mobile TV Network− www.modeo.com

•DVB-H Online− www.dvb-h-online.org

•IP Datacast Forum− www.ipdc-forum.org

•Mobile TV Forum− www.mobiletv.nokia.com

•MediaFLO Forum− www.floforum.org

•Open Mobile Alliance− www.openmobilealliance.org

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Questions?

tom.mcdonough@azcar.com

Technology Retreat 2006