iptv – an overview
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![Page 1: IPTV – an Overview](https://reader031.vdocuments.mx/reader031/viewer/2022020715/546c9794af795962298b5083/html5/thumbnails/1.jpg)
The
Gre
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Chi
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IPTV
Ove
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IPTV – an Overview
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Outline
IPTV Not Just a STBDigital ContentBandwidth Considerations
IPTV TodayTelco'sContent Providers
IPTV for CableBusiness IssuesProblemsSolutions - DIBA
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What is IPTV?
IPTV is:A managed network for delivering video, voice, and data with guaranteed Quality of Service.
IPTV is not:Real time video services delivered over the public Internet.
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IPTV and IP-Video are real!!!
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What is the Next Generation of TV?
Converged Experiences
Mobility Across Networks
Take it AnywhereDeliver it Anywhere
Mobility Across Devices
Converged Content
RULES, RIGHTS, CONTROL
RECOMMENDATIONS, TIME SHIFTING, NDVRSEARCH, MULTI-SCREEN, ADVERTISING
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240.9
135.8
93.480
65.142.2 32.6
11.60
50
100
150
200
250
aver
age
min
utes
per
day
per p
erso
n
television computeruse
internet radio music phone video(VCR,DVD)
gameconsoles
Daily Usage of Media by Source
THE AMERICAN MEDIA DIET
Sources: bar graph from “How the Internet is Changing Consumer Behavior and Expectations,” by Lee Rainie, Pew Internet & American Life Project (5/9/06)
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VOICE
(.120 Mbps
per stream)
WHO’S HOGGING THE BANDWIDTH?
VIDEO
(8 - 10 Mbps for HD in MPEG-4 or 14-16Mbps
in MPEG2)
DATA
(1.5 to 5 Mbps)
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VIDEO IS FUELING DATA DEMANDS
Image courtesy of www.ced.com
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My lifestyle would change drastically without the internet
My expectations and demands are far greater than my parents for rich media experiences
and on-the-go broadband access
I want to be able to have access to TV programs where I am, whenever I want
Quite a bit to almost all of the time
Some of the time
None
Would like to have DVR
Would like to have HD
Have Cable or Satellite
Having archived TV programs and movies on demand
Ability to pause TV program in one room and resume play in another
room of the house
Ability to download TV programs from a DVR to a memory device for
use on a mobile player
Have DVR
Have HD
9%
27%
64% 76%
70%
70%
84%
86%
83%
40% 42%
46% 43%
85%
Source: Motorola Research, 2008
The Millennial GenerationThe Millennial GenerationWatching TV on DVR
Prime Time to My Time HD on Demand
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What is the Next Generation of TV?
Converged Experiences
Mobility Across Networks
Take it AnywhereDeliver it Anywhere
Mobility Across Devices
Converged Content
RULES, RIGHTS, CONTROL
RECOMMENDATIONS, TIME SHIFTING, NDVRSEARCH, MULTI-SCREEN, ADVERTISING
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AND DIGITAL CONTENT DEVICES ARE MULTIPLYING
Parks Associates, “Connected Entertainment Opportunities in the Home,” Harry Wang ©2006
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Video Explosion
Internet – Hulu.com Internet Video
52.3 videos per viewer on YouTube.com
Duration of average video viewed online at Hulu
11.9mins compared to all online videos at 3.1mins
Average online video viewer watched 273 minutes of video
33% increase in online video watching in Nov 2008 than the previous year
Sources : comScore
2009
Jul Oct Nov
105M
221M
( M, US)
Aug Sep
142M
107M
206M
Total Video Streams per month on Hulu.com
Jun
82M
Sources : Nielsen VideoMetrix
and comScore
2008
2008
241M250M
332M
Dec Jan Feb
2009
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NBC Universal’s new Total Audience Measure Index (TAMi)
Eris Quod SumThe Lyin’, the Bitch and the
Wardrobe
Do-OverEmployee Transfer
A Hard Day’s Knight
Money
From Prime Time to “My Time”
Audience for converged content viewing
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1 DEVICE ≠
1 STREAM
MLB
HD signal
MLB
MOSAIC
SD signal 1
MLB
MOSAIC
SD signal 2
MLB
MOSAIC
SD signal 3
EPG
interactive trivia game & streaming
stats
HD
PVR
Recording
= 8 Mbps=9 Mbps= 17Mbps=17.5Mbps= 18 Mbps
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The Internet connects content providers to playback devices
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Next Generation Television: Service Provider Challenges
TV STUDIOS NEW AGGREGATORS
USER GENERATED CONTENT
MY CONTENT
ControlRULES DATABASECONTENT STORAGE
iTunes 7
• DRM• Content Mgt
• Rules Obedience• Usage Tracking• Advertising
• Content Format Resolution• Transcoding/
Adaptation
Content & Advertising Management, Billing & Settlement
Metadata
Managing “Infinite” Content
Compelling & Effective Content Navigation On Multiple ScreensMerchandising “Infinite” Content
• Context Driven Navigation• Recommendation, Search & ‘Found’
• 3 Screen Storefront• Bundling & promotions
• Subscription, Rental, Pay to Own• Affiliate offers
Managing The End User Experience
Operator Network
Home & Mobile• Managed Home Network• Service Extension To CE Devices • Mobilize The DVR Experience
• Link Home & Mobile Content Offers
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Content to IP clients
IP Clients = PCs, IP Set Tops, Handhelds
Central transcode
Transcode at the edge
Implement DRM
SIP/ISA conversion
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The Promise: A new Consumer ExperienceAny content on any device . . .
. . . anywhere you want it
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The
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ater
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IPTV
Ove
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Content Providers
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IPTV Content Providers
Who are they?Hulu, Netflix, Vudu, CNN, ABC, Sony, Disney……
What are they doing?Delivering content directly to consumers via the Public Internet
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6.9
8.9
1 1 .0
1 8.3
20.8
24.6
27 .0
28.8
32.6 32.333.5
0
1 0
20
30
Ju n -05 Oct-05 Ma r -06 Ma r -07 Ma y -07 Sep-07 Nov -07 Ja n -08 Ma r -08 Ma y -08 Ju l-08
Source: ComScore
In July, 33.5 Billion Minutes per Month were Spent Watching Video Online
Total Minutes Watching Online Video per MonthAt Home, Work, and Universities
(in Billions)
YouTube accounts for over one-third of all time spent watching online video
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Just 9% of Those Who Watch Video Online Strongly Agree that they Watch TV Less Often
Strongly disagree (1-3)
74%
(4-7)17%
Watch TV less often - strongly
agree (8-10)9%
Using a 1-10 scale with 10 being strongly agree and 1 being strongly disagree, how much do you agree or disagree with… since I began watching video online I now watch TV less often
Using a 1-10 scale with 10 being strongly agree and 1 being strongly disagree, how much do you agree or disagree with… since I began watching video online I now watch TV less often
Watch TV Less Often Since Watching Video Online (1-10)
Results are similar to last year
16% of men age 18-34 who have watched video online strongly agree that they watch TV less often now – compared to 6% of all others
From LRG study Emerging Video Services II
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Content protection
Content monetization models
Diverse content format requirements
Network performance
IPTV Content Providers – Problems
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Losing Ad revenue to online advertisingThus Hulu
Losing viewers to alternate consumption modelsie Netflix challenged by VOD
Fragmented market with content explosionThe dreaded “long tail”
IPTV Content Providers – Business Issues
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The
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IPTV
Ove
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Bandwidth Considerations
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SO HOW MUCH CAPACITY DO WE REALLY NEED?
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HOUSEHOLD SEGMENTED BY TECHNOLOGY ADOPTION
Source: Parks Associates, “Media Servers: Analysis & Forecasts, p. 2 of Resource Book
2006
2011
Non-Internet Households
Non-Internet Households
Laggards
Early Adopters
Laggards
Early Adopters
Tier 4 9%
36%
Tier 5 5%
Tier 0, 9%Tier 1, 13%
Tier 2, 16%
Tier 3 12%
Tier 3 10%Tier 4
20%Tier 5 14%
Tier 0, 6%
Tier 2, 8%Tier 1, 11%
31%
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0
10
20
30
40
VOIP1 Mbps
SD-DVR2 Mbps
HDTV8 Mbps
2006 2011
Mbp
s
SDTV
HDTV
DVRBROADBAND
POTS Broadband 5 Mbps
Source: Parks Associates, “Media Servers: Analysis & Forecasts, p. 2 of Resource Book; Motorola 2007
SDTV (2)4 Mbps
20 Mbps
PEAK BANDWIDTH USAGE BY LAGGARDS (Tiers 0 –
2 = 25%)
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0
10
20
30
40
PEAK BANDWIDTH USAGE BY EARLY ADOPTERS (Tiers 3 & 4 = 30%)
HDTV (2)16 Mbps
SDTV (2)4 Mbps
PIP2 Mbps
VoIP1 Mbps
43 Mbps
Mbp
s
2006 2011
SDTV
HDTV
BROADBAND
VOIP
HD DVR
PIP
Source: Parks Associates, “Media Servers: Analysis & Forecasts, p. 2 of Resource Book; Motorola 2007
Broadband12 Mbps
HD DVR 8 Mbps
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0
10
20
30
40
50
60
70
80
PEAK BANDWIDTH USAGE BY FRINGE (Tier 5 = 14%)
HDTV (4)32 Mbps
HD PIP 8 Mbps
Broadband15 Mbps
72 Mbps
Mbp
s
2006 2011
SDTV
HDTVDVR
VOIP: VIDEO CONFERENCINGHD PIP
HD DVR
VoIP1 Mbps
Source: Parks Associates, “Media Servers: Analysis & Forecasts, p. 2 of Resource Book; Motorola 2007
HD DVR (2)16 Mbps
Broadband
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Estimated Bandwidth Usageby U.S. Household Segments
0
24
48
72
96
NOW 2010
Ban
dwid
th C
onsu
med
(Mbp
s)
Estimate Bandwidth Usage by USA Household Segments
20406080
100
120140
160
ndw
idth
Con
sum
er (M
bps)
THE RESULT…
Estimate Bandwidth Usage by USA Household Segments
020406080
100120140160
Today 2011Ban
dwid
th C
onsu
mer
(Mbp
s)
LAGGARDSEARLY ADOPTERS
FRINGE USERS
20
43
72
Tiers 3 to 5 = 44% of HHs
(63 M)
25% of HHs(29 M)
30% of HHs(36 M)
14% of HHs(17 M)
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BUT WAIT! THERE’S MORE…
Source are listed in the notes
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Why Ultra Broadband ?
HDTV and HD-DVR becoming more common
Half of all TVs sold in US this year are HD capable The second HDTV or HD-DVR challenges typical copper deployments
High upstream capacityHD quality conferencingOnline gaming
Enabling PlatformDOCSIS 3.0 Channel bondingHigh-speed GPON (2.4G/1.2G) FTTP serviceGigabit Ethernet interfaces on RFoG
10 Mbps
2 Mbps
9 Mbps
9 Mbps
2 Mbps
2 Mbps
100 Kbps100 Kbps100 Kbps100 Kbps
35+ Mbps
Service Quantity
VoIP 4SDTV 2HDTV 2VOD/Gaming 1
HSI 1
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The
Gre
ater
Chi
cago
Cha
pter
SC
TE -
IPTV
Ove
rvie
w
Telco IPTV
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Telco IPTV – Business Issues
Losing wireline customers to CableATT losing 4% per year
Need to Develop New Lines of Business
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Telco IPTV - Problems
Last mile network is bandwidth constrainedDSL ~ 6Mbps to VDSL2+ > 48 Mbps
No experience with video
No experience with programming acquisition
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BANDWIDTH IN THE BACKGROUND –
THE DVR
+8
15 M
9 M
18 M
13 M
19 M
17 M
20 M
23 M
20 M
28 M
0
5000
10000
15000
20000
25000
30000
35000
40000
45000
50000
U.S.
Hou
seho
lds
(in m
illio
ns)
2007 2008 2009 2010 2011
DVR PenetrationStandard Definition Units vs. High Definition Units
HD DVRsSD DVRs
HD DVRs begin to out sell SD DVRs
Source: IMS Research
Able to record up to 4 steams concurrently
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DSLAM
A Typical IPTV Network
Network Operations Center
Subscriber Management
Network Monitoring and Control
Content Management, Presentation, & IPRM
Video Hub Office
Video Acquisition System
VOD Servers
MPEG-4 Encoders
MPEG-4 Splicer
Central Office
Edge Router
Remote DSLAM
Network Monitoring and Control
MPEG-4 Encoders
MPEG4 Splicer
Content Management, Presentation,
& IPRM
Fiber Backbone CPERemote
DSLAMDSLAMGuide,
Middleware VOD App
Edge Router
VOD Servers
Video Acquisition
System
Fiber Backbone
Acquisition & Distribution Network Access Network Consumer Network
Video Acquisition System
MPEG-4 Encoders
InternetEcosystem
Super Headend
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The
Gre
ater
Chi
cago
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pter
SC
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IPTV
Ove
rvie
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IPTV for Cable
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IPTV for Cable
Does Cable need to jump on the IPTV bandwagon?
Is it “IPTV”, Video over IP, or Video over the internet?
What’s involved?
Where can we assist?
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IPTV for Cable – Business Issues
Losing Subscribers to Telcos
Loss of revenue to Over-the-Top services
Limited number of suppliers / perceived cost issue
Slow addition of consumer applications
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MSO Perception
Comcast: “IPTV is coming and it will likely be big”*Comcast content (and Internet) to PC and eventually any IP clientComcast (and all MSOs) migrating to >> narrowcast
80% of spectrum digital in 3-5 yrsConsiderable new spectrum for HD and SD digital servicesAt least 50% unicast + multicastServing group sizes continue to shrink
3-5 yr expectations80% of spectrum digital>50% unicast & multicast
IPTV via DOCSIS pipe requires up to 30x CMTS growthSolution needed to match MPEG/QAM video costsUnified CPE
MPEG/QAM and MPEG/IPSTB/Gateway converts QAM↔IP
* July 2008 NGNA Kick-off
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TWC:“The VIP architecture is intended to augment the existing video distribution network to allow the delivery of TWC video services to non-traditional devices (ie: PCs, personal media devices, cellphones, IP STBs, etc)”
“The intent is to deliver live broadcast/linear video and video on demand services to IP STBs where those IP STBs do not contain RF tuners but instead use only an Ethernet port”
MSO Perception
*July 2008, Video-over-IP RFI
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Ecosystem Evolution
Internet applications via cable
MSO licensed content to IP clients•
PCs, IP STBs, Handhelds
Integration of IP Set Tops into the cable ecosystem
IPTV 2.0•
Sharing of content between networks and “three screen”
devices
IPTV for Cable – Solutions MPEG-2/RF to IPTV in Four Stages
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OCAP HN1 Enables PC Content SharingOCAP HN2 Enables Multi-Room DVROCAP HN3 (now 2.5) Enables Tuner SharingOther extensions to facilitate the Ecosystem over timeMotorola is participating/contributing to the development of theall the HN extensions
Evolution of Home Networking in CableLabs and OCAP HN to an Overall Ecosystem
CableLabs Initiatives
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HomeNet I
Enables STB access to PC content
PC/HMG
STBSharing
AppOCAP
Guide
LAN Tnr CC
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HomeNet II
Adds Whole Home DVR
PC/HMG
Hub STBSharing
AppOCAP
Guide
LAN Tnrs CC HD
Client STBSharing
AppOCAP
Guide
LAN Tnr CC
Client can get to DVR contentClient can get to PC content
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HomeNet II.5
Enables LightWeight Client
STB w/HD Client STBSharing
App
OCAP
Guide
LAN Tnrs CC HD
Sharing App
OCAP
Guide
LAN Tnr CC
Light-weight Client STB
Sharing App
OCAP
Guide
LAN
PC /
HMG
Client can get to PC contentClient can get to DVR contentClient can get to Tuner and Cable Card Resources
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HomeNet II.5 Enables Single Triple-Play Box
Single box for triple play of services
PC/HMG
OCAP
Guide
LAN Tnrs CC HD CM SLC
Data Voice
SMG/HMG series
OCAP
Guide
LAN
Sharing App
LW Client STB
Enables LightWeight ClientClient can get to PC contentClient can get to DVR contentClient can get to Tuner and Cable Card Resources
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Transport Gateway
Current CPE development that can act as MPEG and DOCSIS termination
8 MPEG or DOCSIS tunersMultiple LAN and device interfacesDLNA protocolsDRM bridge to IPRM or DTCP
Video distribution solutions within the Home Net exist for either MPEG or DOCSIS delivery of IP video
Solution could provide a flexible platform for serving both MPEG video and IP video/data with IP distribution over the over Home Net
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DOCSIS IP-video Bypass Architecture•
The standard digital broadcast is distributed over an IP backbone.•
Video packets go a last-hop router/switch and then directly to the EdgeQAM and HFC plant
•
Typically, IP/DOCSIS content goes through the CMTS core
•
CMTS core processing is at least 4 times as expensive as EdgeQAM processing
•
With DIBA, IPTV and IP-video same path as digital broadcast• DIBA bandwidth cost -> digital video bandwidth cost
DIBA is Essential to IP-VOD and IPTV for Cable
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Cable Network with IP Backbone, IP/DOCSIS service and Digital Video Service
Cable ModemTermination
System(CMTS)
DOCSIS Cable
Modem
EdgeRouter
LocalNetwork
VODServer
TVfeed
MPEGEdge-QAM
(RF modulator)
DOCSIS Channels
Digital Set-top
TV
Digital Video Carriers
Internet
PC
Common IPBackboneNetwork
DOCSIS: Data over cable service interface specification
Primary (MAC enabled)
Non-PrimaryNon-Primary
Upstream
Video/IP Multicast
DOCSIS 3.0 allows multiple downstream channels to single Cable Model
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DOCSIS Bandwidth via Modular CMTS Architecture is more expensive than Digital Video
IntegratedCMTS
DOCSIS 3.0 CM
LocalNetwork
VODServer
IP set-top
DOCSISEdge-QAM(RF modu-
lator)
DOCSIS Channels
Primary Downstream
Downstreams
• Modular CMTS architecture introduces DOCSIS Edge-QAMs•
Allows additional downstream channels to accommodate IP-video and IPTV without adding additional upstreams
• IP-video packets still transit the CMTS and edge router (twice)• Additional cost compared to digital video• Tunnel from CMTS to Edge-QAM
TVfeed
Internet
TV
EdgeRouter Tunnel
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DOCSIS IP-video Bypass Architecture (DIBA)Reduces the cost of Digital Video
IntegratedCMTS
DOCSIS 3.0 CM
LocalNetwork
VODServer
IP set-top
DOCSISEdge-QAM(RF modu-
lator)
DOCSIS Channels
Primary Downstream
Non-Primary Downstreams
• IP-video packets follow the same path as digital video• Edge Router to Edge-QAM modulator to customer•
Unicast flows tunnel from router to Edge-QAM (which is not a router)•
Multicast IPTV sessions are joined by the Edge-QAM (just like in digital video)
• Edge-QAM performs the necessary DOCSIS encapsulation•
DOCSIS channels from Edge-QAM are ‘non-primary’ meaning they do not have full MAC layer functionality
TVfeed
Internet
TV
EdgeRouter
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IPTV on DOCSIS with DIBA
• Similar issues to Switched-Digital-Video
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Network Popularity RankingsAve
rage
Num
ber o
f Sub
s Vi
ewin
g Ea
ch T
itle
Channel Popularity (i.e., …NBC, CNN, ….TOON……)
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To conserve Bandwidth, IPTV is ‘Switched’ just like Switched Digital Video
The MSO wants to offer more networks (CNN, FOX, …) than will physically fit into the available bandwidth
The most popular titles (FOX, CNN, etc) are transmitted across the entire plant from one set of ‘broadcast’modulators. This is the standard approach to digital broadcast.In addition, the plant is divided into serving areas (MAC domains), with sets of dedicated modulators for each serving area. These dedicated modulators are used for the SDV titles.The less popular titles (TOON, TVLand, etc) are switched. These titles are only transmitted to a serving area (“switched on”) if at least one STB is tuned to that service.
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All Broadcast – Requires Too Much Bandwidth
Switch
APEX
APEX
APEX
IP Multicast over Metro Network
Vide
o fr
om s
atel
lite
feed
and
ser
vers
All shows, all nodes, all the time
All services go to all service areas, regardless of whether anyone is watching those services.
Digital video over HFC plant
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Switched Digital Video – Conserves BandwidthFor switched services, only the services being watched in a particular service group are transmitted.
IP Multicast over Metro NetworkVi
deo
from
sat
ellit
e fe
ed a
nd s
erve
rsDigital video over HFC plant
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SD+MPEG2 Computed Channels Viewed
0.00
20.00
40.00
60.00
80.00
100.00
120.00
140.00
0 200 400 600 800 1000 1200 1400 1600 1800Active viewers per serving area with SD and MPEG2
SDV
title
s pe
r ser
ving
are
aTotal SDV titles to each serving area, versus number of active subs.
Active Viewers per Serving Area
Ave
rage
Tra
nsm
itted
Titl
es p
er S
ervi
ng A
rea
More and smaller serving areas
Comparison to all uni-cast transmission to each subscriber:100 viewers require 100 separate transmissions
Saved spectrum = “benefit”
Having multiple viewers per ‘show’ saves spectrum compared to all unicast• Drives network toward large serving areas• Uses up more spectrum
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"Extra" QAMs versus plant segmentation(based on allocated QAMs for target blocking probability)
0.00
500.00
1000.00
1500.00
2000.00
2500.00
3000.00
3500.00
0 50 100 150 200 250 300
Segments
Extr
a Q
AM
s re
quire
d
Mean usageAllocation for target blocking probability
More and smaller serving areas
“Cost” = Number of ‘extra’ QAMs required due to same SDV content being transmitted to multiple serving areas by different modulators
Cos
t = E
xtra
QA
Ms
Req
uire
d
Number of Serving Areas
Limited spectrum for all ‘shows’ means size of serving area is also limited• Less than the entire plant
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SwitchedVideoManager
DigitalQAM
MulticastVideo Feeds
Digital Storage Media – Command and Control
Switched Digital Video Signaling
DigitalSet-top
EdgeResourceManager
DigitalQAM
Request for TV show•Set-top MAC address•ServiceGroup ID•Video SourceId
ERM •
Knows what video sessions are on what QAM carriers•
Assigns new video sessions to QAM carriers and Program IDs
Response /w TV show info• Carrier Freq• Program ID (PID)
• QAM joins multicast session• Strips IP header•
Forwards video on given carrier and PID
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MPEG-2 (SPTS)UDP
IP MulticastMulticast MAC
DOCSIS MACDSID
MPEG2-TS
MPEG-2 (SPTS)UDP
IP MulticastMulticast MAC
MPEG-2 (SPTS)UDP
IP Multicast
Multicast MAC
Last HopRouter
Edge- QAM
CM IPSTB
LocalNetwork
DOCSIS RF HFC
Home IPMetroNetwork
MPEG-2 (SPTS)UDP
IP Multicast
Multicast MAC
DIBA Encapsulation of IP Multicast
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65Motorola Confidential Restricted. 65
POTS Phone
via NCS
Current E2E Video Ecosystem
Laptop
Line Extender Amp Tap Cable
Termination Unit
Analog & QAM Video
Return Path Demodulator
Optical NodeAnalog / Digital
Edge Modulator
Set-Top & TV
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66Motorola Confidential Restricted.
Motorola’s Vision of the Evolved Ecosystem: Mostly IP today
Remote DSLAM66
IP IP
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67Motorola Confidential Restricted. 67
RF Plant
MSOs Migrating to IP Core, QAM at the Edge
GuideServer
DSGOr OOB
Edge QAMFor Guide
VODServer
SRM
Edge QAMFor SDV
Edge QAM For VOD
SVM
BroadcastInput
IP Network
Edge QAMFor Broadcast
QAMSTB
ISA/NGOD EncrypterCA
Controller
BillingSystem
Purple is Guide DataRed is Provisioning, AuthenticationGold is Signaling For SessionsGreen is Content
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Laptop
Set-Top & TV
Motorola’s Video Ecosystem
POTS Phone
via NCS
Laptop
Set-Top & TV
POTS Phone
via VoIP
Laptop
Wireless Access(WiMAX, LTE, DVB-H)
Telco IPTV QOS(xDSL & GPON)
Digital Cable(Hybrid Fiber Coax – HFC)
Common Digital Video Headend
Core Services Framework(Applications cluster/Back Office)
Goal: Add IPTV / DOCSIS. Solution: DIBA
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Provider and Platform Independence at the NCTA ’09 Show in Washington, DC.