Transcript TV for Mobile Devices, Tom McDonough

TV for Mobile Devices
Technology Retreat 2006
Tom McDonough
Senior 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
4
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
IP Multicast-based
Services
IP-based
Services
DVB-H IP Datacasting
Streaming
Streaming
Files
Files
ESG
ESG
DVB-H Systems
MPE
MPE-FEC
DVB-H
IP Decapsulator
Additional
IP Encapsulator
DVB-H
IP Encapsulator
MPE
Receiver
MPE-FEC
Timeslicing
Power Control
Timeslicing
Transmitter
MPEG-TS (Data)
DVB-H
MPEG Transport Stream
Concentrator
DVB-H
Modulator
4k
DVB-H TPS
DVB-H
Demodulator
MPEG-TS (Data)
RF Channel
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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
Electronic Services Guide
Service
Layer
Media Streams
(Audio/Video)
Media Files
(Audio/Video)
XML, SDP, HTML
RTP / MSB (Live)
FLUTE (Data Carousel)
UDP
IP
Layer
IP (Multicast)
MPE Encapsulation
Network
Layer
MPEG2/DVB Transport Stream
DVB-H Physical Layer
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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
MediaFLO
•COFDM Modulation Scheme
•Target Format QVGA@2030fps
•Data Throughput ~6.2Mbps
(RF channel Dependant)
•Proprietary Technology
•Single Vendor (Currently)
•Initial Trials
•Better Performance
•Network Operator
•Verizon Partnership
DVB-H
•COFDM Modulation Scheme
•Target Format QVGA@2030fps
•Data Throughput ~6.2Mbps
(RF Channel Dependant)
•Open Standards
•Broad Vendor Support
•Completed Trials
•Good Performance
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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
ult
ipl
ex
of
All
R
eg
ion
s
Region SFN (One Node)
AS
IM
DVB-H Signal (1670MHz)
Network
Multiplex
Broadcast NOC
Single Region
Satellite TX
Satellite RX /
Deconcentrator
DVB-H TX
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Network Technical Details
•
TRANSMITTERS
•
BROADCAST BAND AND FREQUENCY
•
DVB-H PARAMETERS
•
VIDEO / AUDIO FORMAT
•
•
INTERACTIVITY PLATFORM n/a
CONDITIONAL ACCESS / DRM TYPE AND PROVIDER
•
HEADEND EQUIPMENT
•
RECEIVER / TERMINAL EQUIPMENT
− 9 transmitters (2kW EIRP) in SFN, covering Pittsburgh.
− 1670-75MHz
− Crown Castle owns 5MHz of L-band spectrum nationwide in USA which was won in
FCC auction, 2003
− 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: Windows Media WMV9 , QVGA, 25fps, 250kbps
− Audio: Windows Media WMAPro, 32-48kbit/s
− Windows Media DRM
− Thales WM Encoders and servers, Thales IP encapsulators, Axcera and Thales
transmitters, Kathrein antennas
− DiBcom SD module with PDA’s, plus prototype devices from several different vendors
transmitters
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Modeo Headend Data Flow
Live Channel Encoding
Content
Ingest
Content
Source
SDI(Embedded)
WM9
Encoder
ASF / IP
WM
Services
MSB / IP MC
DVB-H
Headend
Services
DVB-H Service Headend
WM
Services
File Services
MSB / IP MC
IP MC
Timeslice
MPEG TS / ASI
SFN
MIP Inserter
MPEG TS / ASI
Additional
Regions
MPEG TS / ASI
DVB-H
Region
Network
Distribution
Stream
Concentrator
Region
IP Encapsulator
FLUTE
ESG
IP MC
MPE-FEC
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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
•Mobile TV Forum
− www.mobiletv.nokia.com
•MediaFLO Forum
− www.floforum.org
•Open Mobile Alliance
− www.openmobilealliance.org
•IP Datacast Forum
− www.ipdc-forum.org
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Technology Retreat 2006
Questions?
[email protected]
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