IP Video over DOCSIS Is Cable ready for IPTV? · Market and Business Drivers • Competitive...

IP Video over DOCSISIs Cable ready for IPTV?

Michael AdamsVice President, Applications Software Strategy

Confidential | www.tandbergtv.com

Agenda

Current state of DOCSIS

Market and business drivers for DOCSIS

Evolution of video delivery

What's to come

Summary


Current State of DOCSIS 3.0

• Is DOCSIS 3.0 ready to become IP video transport king?

– Much faster speeds, initially up to 155 Mbps downstream, and 120 Mbps upstream, even potentially more if service providers bond more then 4 channels

– More users per channels through statistical multiplexing efficiency benefits of higher bandwidths (roughly 15-20% more, compared to DOCSIS 2.x)

– Native and enhanced support (SSM, header suppression, etc) for IP multicast

– Decoupling of bonded channels, and use of Universal Edge-QAMs

– Enhanced Security and monitoring

– IPV6 support


Current State of DOCSIS 3.0

• Certification levels and wave status– CableLabs has many CMTS vendors qualified at bronze, silver,

and even full certification

– Currently many certified Cable-Modems

• Certifications are done in “wave”, latest qualification was “wave 58”

• Certification levels are based on support of specific functionality (such as upstream bonding support

• Cable Modem must support “ALL” requirements to pass


Technical and Engineering Status

• DOCSIS 3.0 certification

• Modular CMTS? Not a requirement, but promises lower downstream costs by using EQAM technology

• New monitoring tools and techniques (no more analog, or even traditional Digital)

• Common timing requirements

• Complex new systems architecture requires new OSS/BSS development

• New Security requirements

• New DSG STB

• IPV6 management and support

• New protocol requirements, such as IPDR


Early Adopters

• Service Providers (such as Videotron in Canada) have already been deploying non-standards based bonded channel services

• Comcast is already offering services up to 100Mbps in certain markets

• Many other MSO in technical trials as we speak• Some MSO are hedging their bets by slowing down SDV

deployments, in exchange for accelerating DOCSIS 3.0 rollouts


Agenda




What's to come

Summary


Market and Business Drivers

• Competitive pressure from FTTH/FTTM service providers (i.e. Verizon, AT&T, etc.)

• Interestingly DOCSIS 3.0 can outpace (with just 4 bonded channels) the fastest of currently available FTTH broadband services available today

• Better suited for small and medium business, which often require symmetrical speeds of a higher order

• As more bandwidth and spectrum is shifted to DOCSIS, better means of utilization and efficiencies are investigated. VOD, HD,“Over-the-top content” channel delivery for example

• The advent of DSG Set-top-boxes


• IP Video over DOCSIS now offers the possibility of new services, such as :– Localized and personalized ad-insertion (down the tuner level)– Personalized video channels for sharing home videos and

content (imagine end-users creating their own TV channel that friends and family can join to watch your content)

– Highly specialized and customizable video portals (i.e. Video mosaic portals, etc.)

• Dramatically reduced the threat of FTTH services providers, and in some cases (FTTN providers), reverses the positions

• Often overlooked, and under-valued, more “upload”capacity

• Along with new DSG STB, comes support MPEG-4 AVC, fast channel change, and reliable UDP transmission protocols

Market and Business Drivers


2.4 Kbps

Peak Modem Throughput (bps)

1982 1986 1990 1994 19981

10

100

1K300 bps

2002 2006

56 Kbps

10K

100K

1M

1.2 Kbps9.6 Kbps

14.4 Kbps

28 Kbps33 Kbps

10M

100M

1G

128 Kbps

256 Kbps512 Kbps

1 Mbps 5 Mbps

50 Mbps

The Era ofDial-Up Modems

The Era ofCable Modems

The Era ofWideband

Cable Modems

2010 Year2014

10G

100G

12 Mbps

1 Gbps10 Gbps

100 Gbps

2016

Trend Predicts 200 Mbps Modems in 2016*

Bandwidth (bps)

30 Kbps90 Kbps

100 Kbps

1 Mbps

* with thanks to Tom Cloonan, ARRIS

Constant Increase = ~1.4835x every year

Average per-sub bandwidth will increase by a factor of ~100 over the next 8 years!

200 Mbps

11 Mbps


Agenda




What's to come

Summary


How the video delivery model is changing

• Trends– From One-way to Two-way

– From Broadcast to On-demand

– From DVR to nPVR

– From TV to TV, PC and mobile (“3 screens”)

• Why?– Customers are demanding it

– Web leads them to expect it

– Targeted advertising requires it

• Where will this take us in a 5 year timeframe?– Network evolution

– Service convergence


From One-way to Two-way

• HFC enabled real-time, two-way by segmenting the network into small service groups with manageable ingress noise characteristics.

• Real-time, two-way signaling was first deployed in digital cable deployments starting in late 1990’s.

• Real-time, two-way was a key enabling technology for VOD• It also enables High Speed Internet and Voice over IP

services

• Transition completed by 2005 (major MSOs)


From Broadcast to Unicast

• TV is gradually moving from a broadcast to a unicast delivery model.

• This trend started with on-demand programming for example movies on-demand and subscription on-demand (e.g. HBO on demand).

• Even for live programming, such as sports and news, there are advantages to unicast delivery:– Advertising can be targeted according to individual customer

demographics and preferences– Splicing technology (called VOD play-listing) is now being

incorporated into VOD servers– nPVR services can be seamlessly added without the need for

an expensive DVR


From DVR to nPVR

• TiVo was the service so loved by consumers it was even profiled in “Sex in the City”, but DVRs have their drawbacks:– You have to remember to program them– Only so many tuners– Only so much storage– Prone to failure (hard disk)– Power hungry– Cost

• Only 20% of subscribers have a DVR in USA.• Network Personal Video Recorder (nPVR) emulates a DVR

and solves most of these problems.• nPVR is a significantly lower cost solution than DVR due to

VOD server commoditization.• TWC pioneered an effort to obtain programming rights

successfully with their “Start Over” service.


From TV to TV, PC and mobile devices

• For anyone who had graduated college by 2005, PC is seen as an additional way to view video programming.

• But for those younger, it is seen as a replacement!• MSOs are starting to acknowledge that their emerging new

competitors are iTunes, NetFlix, and Blockbuster.• Mobile video is the latest craze in Asia, and will likely

spread in Europe and America.


• SDV

– SDV should be considered an interim step.

– Even with universal EQAM, and spectrum sharing, services are still isolated, and bandwidth segmented and wasted.

– Although SDV could support IPTV type services, it doesn’t really make sense.

– To achieve a completely switched architecture using SDV, at least 650 Mbps would be required a 500 tuner service group, and you still need to allocate 4 to 8 QAM channels for DOCSIS, “X” channels for nPVR, “Y” channels for VOIP.



• IP Video over DOCSIS– With 8x4 bonded channels (which is currently being field

tested by some MSO), up to 310 Mbps is available– True “Services” bandwidth sharing is now possible. Remember,

customers don’t buy “technology” (i.e.. DOCSIS), they purchase “Services” (TV, VOIP, HSI, etc.)

– Efficiencies in multicast video, both at the edge and the core, make DOCSIS specially suited for high volume distribution. At any given time 80% of customers watch on average the same top 20 channels.



Agenda




What's to come

Summary


A Five Year Vision for Video Services

• Everything On-Demand– Startover, nPVR, Library model

• Any Device– STB, PC, Mobile Handset, Portable Media Player

• Anywhere– Living room, Study, Car, Airplane, Train, …– Push & pull model delivery models

• Any Network– Since video is an applications, we should strive for network

independence. For example, although MSOs deliver video over HFC networks today, they will expand their footprint using IP and wireless technologies.


Everything On-Demand

• Linear television is becoming less important over time; this is a generational change. Today’s college-age kids have already discovered how to obtain their entertainment video in a non-linear world.

• “All you need is On-demand” if and only if:– Powerful, natural guide – yet to be perfected

– Library model – unlimited long-tail content combined with powerful search and recommendation engines

– Targeted Advertising support

• Cable will gain a strategic advantage over satellite by moving rapidly to “everything-on-demand”


Any Device

• MPEG-4 AVC provides up to a 50% reduction in bandwidth for equivalent quality over MPEG-2.

• It has become established as the universal choice of CODEC for nearly all devices (STBs, PCs, PDAs, etc.)

• In a DOCSIS 3.0 environment, a per-house cable modem could provide the network termination for all services (voice, video, and data).

• Next generation IP-only STB’s will be much cheaper because they do not require tuners and return transmitters, only a single Ethernet interface ($20 - $40)


HD Resolutions and Frame RatesExample bit-rate requirements

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

18.0

0.0 2.0 4.0 6.0 8.0

Resolution pels * frame rate (normalized to D1)

Bit

Rat

e (M

bps) MPEG-2

MPEG-4 AVC

1280x720p@24

1280x720p@50SD @60

1920x1080i@30


Anywhere

• Living room, Study, Car, Airplane, Train– Sometimes termed the “three screen approach”, Operators

must have a single content delivery infrastructure to support all of these scenarios

• Push & pull model delivery models required– Some devices will be fixed (large display), others portable

(medium display size), and other mobile (PDA, cell-phone, media player)

– Some devices will be tethered to the network and stream from it

– Some devices will contain significant storage (32 GB FLASH announced in January) and will play independently of the network.


Any Network

• HFC• IP over DOCSIS• Mobile• IPTV

• The common factor is Internet Protocol


All services over IP over DOCSIS over HFC

Why consolidate all traffic over IP over DOCSIS?

• A single logical network is simpler to maintain than multiple logical networks operating over a single physical network.

• Channel bonding in DOCSIS 3.0 supports much larger logical channel capacity:– M-CMTS approach should reduce cost-per-bit by leveraging the

cost curve of high-density E-QAM devices.

– The larger the bandwidth of the channel in comparison to that of an individual stream, the better the statistical multiplexingefficiency.

• A multi-service mix of video, voice and web traffic is the perfect mix. – During traffic peaks, best effort traffic can be discarded to

force re-transmit and TCP-IP window adjustment.


Web traffic

• A significant increase in efficiency and reduction of complexity is possible by moving to a bigger pipe.

Multi-Service Statistical Multiplexing

Video traffic

Video traffic

Video traffic

Web traffic

Video traffic

38.8 Mbps

38.8 Mbps

38.8 Mbps

38.8 Mbps

155 Mbps


Enhancing customer experience using IP Video

• Picture in picture viewing• Video mosaic EPGs• Multi-angle / multi-channel


Network Evolution and Service Convergence

• Even if we only consider video services delivered to the TV, Headend Processing is getting more and more complicated because each new service (VOD, nPVR, SDV) adds a new subsystem, which is separately provisioned, managed, and operated.

• What if we could consolidate these subsystems into a single, integrated video services platform?

• What if we could use that same integrated video services platform to deliver to PCs and mobile devices in addition to TVs?


Broadcast Video Delivery with Ad Insertion


Addition of Video On Demand


Addition of network Personal Video Recording

IRD Receiver

8VSBReceiver

Digital

Over air

GigE Router/ Switch

Optical Transport Network

GigE Router/ Switch

eQAM HFC Set top

Splicer

Ad Content Server

Ad Manager

Traffic and Billing

System

Encoder

Ad Content

Asset Mgt

System

VOD Server

VOD Back Office

MPEG2 Encoder

BroadcastContent

Cable Networks

Over the Air Broadcast

Control System

Term. DeviceFiber Mux

BroadcastContent

Analog ReceiverAnalog

Analog

Stream Processor

Real Time Ingest


Addition of Switched Digital Video


Everything-on-Demand Video Delivery

Content Providers

Advertising Operator Ad Sales

MPEG TSoverHFC

Content Processing Video Services

CDNNode

Dynamic Advertising

On-Demand

Content Ingestand

Management

RealTimeIngest

StaticContentIngest

Video ServicesBack Office

VideoServer

Advertiser/Ad

ClearingHouse

AdvertiserCampaign

Management

AdBilling

OperatorCampaign

Management

POIS SIS

CIS

VOD nPVR SDVBCast

ADM

IPoverHFC

Ad SalesAdBilling

Ad Operations

ETVAdMarkup OverlayTrans-

codingTrickFile

ADS

SubscriberMgt

(Billing)

CatalogMgmt

IPover

Wireless

Pricingand

PromotionsVideoServer

VideoServer

Live

CDNNode


Agenda




What's to come

Summary


Summary

• IP Video over DOCSIS is the next logical step for video services delivery to the TV– Low-cost IPTV STBs and low-cost DOCSIS 3.0 modems

become available– M-CMTS drives reduction in cost per bit.

• MPEG-4 AVC is becoming the universal CODEC and has the flexibility to support 3 screen applications.

• A single, integrated video service platform can economically replace today’s disjoint video subsystems and brings:– Operational savings– Better service reliability– Additional service offerings– Increased Advertising revenues through targeting

IP Video over DOCSIS Is Cable ready for IPTV? · Market and Business Drivers • Competitive...

Documents

Transcript of IP Video over DOCSIS Is Cable ready for IPTV? · Market and Business Drivers • Competitive...