© 2006 Cisco Systems, Inc. All rights reserved. 1

Horváth Róbert

Mérnök tanácsadó

rohorvat@cisco.com

The Converging Cable Network -Docsis 3.0

© 2006 Cisco Systems, Inc. All rights reserved. 2

Traditional STB

IP STB

Internet

Mobile

21st Century Video Delivery Requirements� Any Content� Any Device� Any Location� Any Time

Broadcast TV

QAM

Broadband

3G/4G Wireless

On-Demand TV

Games and

Music

Online Video

� More Content Sources� More Content Destinations� More Access Networks

© 2006 Cisco Systems, Inc. All rights reserved. 3

Worldwide IPTV Deployments

Carrier Country IPTV Subs Broadband Subs

1 Iliad (Free) France 2,170,000 2.77 Million

2 France Telecom France 975,000 6.90 Million

3 PCCW Hong Kong 818,000 1.18 Million

4 Neuf Cegetel France 600,000 3.12 Million

5 Telefonica Spain 469,067 4.34 Million

6 Chunghwa Telecom Taiwan 358,000 4.07 Million

7 China Telecom China 310,000 35.1 Million

8 Belgacom Belgium 249,434 1.20 Million

9 TeliaSonera Sweden 216,000 1.03 Million

10 Fastweb Italy 170,000 1.25 Million

From Light Reading Report “Top Ten IPTV Carriers” is sued Jan 14, 2008Verizon FiOS is not included since its broadcast cha nnels are not delivered via IPTV

4 of top 5, 7 of top 10 IPTV deployments are in Europe

© 2006 Cisco Systems, Inc. All rights reserved. 4

The Challenges & the MSO ToolkitB

andw

idth

Driv

e Unlimited Content

HD Expansion

Content Personalization

� Fiber Node Splits

� 1GHz Plant Upgrade

� Analog Reclamation

� Switched Video

� QAM Sharing

� H264 Video Encoding

Anyone

Anywhere

Any Device

Any Content

� IPTV over DOCSIS

� Converged network

Con

verg

ence

Driv

e

© 2006 Cisco Systems, Inc. All rights reserved. 5

Digital Broadcast and Digital Simulcast

DNCS

Business Management

System HFC

Headend Hub

IP

DATA Control

IPG

BFSRF

Mux/Splicer

EAS

Satellite

Off the Air

IRT/RTE

MuxSplicer

Local Contents

ADs

QAMs

TED

© 2006 Cisco Systems, Inc. All rights reserved. 6

Switched Digital Video

Switched Channels Everyone could get

their own special channels: increased

appeal of overall package to ALL

subscribers

Broadcast Channels

Next 10

5-10 Viewers

Next 30

1-5 Viewers Next 200+

< 1Viewer

Typical Viewership at a Node

Top 4

>30 Viewers

Aud

ienc

e

Broadcast Channels

Current Analog & Digital Broadcast Approach

Only the most popular channels are offered due

to capacity constraintsUnused

Capacity

SDV: Paradigm Shift from Production to Consumption Model

“The Long Tail”

SDV opens more bandwidth capacity because NOT every

channel is delivered at the same time

© 2006 Cisco Systems, Inc. All rights reserved. 7

How Does Switched Digital Video Work?

Headend

Headend Hub

Today’s Broadcast System

Our Switched Digital Video (SDV) System

Service Group

Service Group

All programs are broadcast to all subscribers all the time

Programs are transmitted to a service group only when a subscriber in that group is actively watching them

SDV sends programs to subscribers only in areas whe re programs are being requested in real-time

Hub

© 2006 Cisco Systems, Inc. All rights reserved. 8

Switched Digital Video

DNCS

Business Management

SystemHFC

TED

Headend Hub

IP

DATA Control

ADs

Groomer/SplicerSDV Contents

Bulk Encryptor

SDV Svr

IPG

BFSRF

QAMs

QPSK

© 2006 Cisco Systems, Inc. All rights reserved. 9

Video on Demand

DNCS

Business Management

System

Asset Management

System

VOD Server

HFC

Content Catcher

TED

App Server

Headend Hub

ISA

IP

RTE

DATA Control

QAMs

QPSK

© 2006 Cisco Systems, Inc. All rights reserved. 10

Control Plane: Session & Resource Management

Switching Admission Control Resource Allocation

Session Signaling

Handles session signaling from the client

-- VoD session request

-- SDV channel change

Request session resources from various resource manager

-- QAM, Encryption

Normally application specific

-- VOD SM, SDV SM

Session Manager Edge Resource Manager

Manages resources

-- QAM, encryption, streaming, storage

-- Admission control

-- Resource sharing

Application agnostic

CCP/IGMP RTSP/GQI RTSP

© 2006 Cisco Systems, Inc. All rights reserved. 11

Universal QAM and QAM Sharing

0.00

1.00

2.00

3.00

4.00

5.00

6.00

7.00

8.00

9.00

10.00

11.00

12.00

13.00

14.00

15.00

16.00

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

0 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12

Time of Day

QA

M D

S C

hann

els

HSD/IPTV

VOD

SDV

Applications Combined

Example Serving Group

Utilization without QAM Sharing vs.

With QAM Sharing

13

HeadRoom

12+1

13

WithoutSharing

WithSharing

19% QAM DS Channels savings with QAM Sharing (16 vs. 13)

• = Peak Usage

7+1

43+1

HeadRoom

HeadRoom

16

© 2006 Cisco Systems, Inc. All rights reserved. 12

Switching in IPTV over DOCSIS

Video Source

Video Source CMTS

Static Multicast

Dynamic Multicast

Service Group

Service Group

Limited number of channels, especially for 4x4 CM

RF spanning may provide some cost benefits

Bandwidth efficient

Need smaller service group to really benefit

CMTS

© 2006 Cisco Systems, Inc. All rights reserved. 13

Video over DOCSIS 3.0 – truly converged network

DOCSIS Evolution New Functionality

Ubiquitous IP Video Device

Video Mosaic

Fast Channel Change

Connected home

QAMQAMQAMQAMQAMQAMQAM

DOCSIS 3.0

• Bonded Channel

• Enhanced Multicast

DOCSISMAC

ETH

US

IPM-CMTSEQAM

DEPI

DTI

DOCSIS M-CMTS

• Universal QAM

• Lower QAM cost

© 2006 Cisco Systems, Inc. All rights reserved. 14

DOCSIS Last Mile Architecture

DTCC

WAN

WAN

Wideband SPA GE

uBR10K

MC5x20 LinecardMC5x20 LinecardMC5x20 Linecard

DTI Server

EQAMWideband

CM

Legacy CM

Upstream

Downstream

CM Choice: WCM300 (8x1), DPC3000 (4x4)

EQAM Choice: RFGW-1, RFGW-10

Spectrum design needed based on CM selection

© 2006 Cisco Systems, Inc. All rights reserved. 15

HFCNetwork

IPTV over DOCSIS Control Plane

PCMM

PCMM

RSVP IGMP

CiscoCMTS

CableModem

Policy Server

VoD Server or Linear source

STB

VoD Session Manager or SDV Session Manager

IGMP RSVP/IGMP PCMM

Switching Admission Control Policy Control

© 2006 Cisco Systems, Inc. All rights reserved. 16

M-CMTS

Making the Transition to Cable IPTV

STB

VoIP

Linear VideoNiche Programming

XoD, nPVR

Cable Modem

Router

PacketCable

HSD

On Demand

VoD

PersonalChannels

PhoneCMTSPacket Shelf

Linear TV

Broadcast/EdgeQAMs

© 2006 Cisco Systems, Inc. All rights reserved. 17

M-CMTS

Making the Transition to Cable IPTV

VoIP

Linear VideoNiche Programming

XoD, nPVR

Router

PacketCable

HSD

On Demand

VoD

PersonalChannels

PhoneCMTSPacket Shelf

Linear TV

Broadcast/EdgeQAMs

IP STBCable Modem

© 2006 Cisco Systems, Inc. All rights reserved. 18

Future #1 – Tiers w/Resource Mgmt

Forward Path (Downstream)

85 150 200 250 300 350 400 450 500 550 600 650 700 750 800 860

Ana

log

TV

(Ban

d III

)

FM

Rad

io

Dig

ital

Bro

adca

st

SDV VOD

DO

CS

IS3.

0

The next thing

IPTVDOCSIS

Frequency Tiers

Analogue TierBroadcast Digital Tier

HSD TierSwitched Digital Tier

VOD TierIPTV DOCSIS Tier

“The Next Thing” Tier

EdgeResource Mgr

© 2006 Cisco Systems, Inc. All rights reserved. 19

Future #1 – Tiers w/Resource Mgmt

Forward Path (Downstream)

85 150 200 250 300 350 400 450 500 550 600 650 700 750 800 860

Ana

log

TV

(Ban

d III

)

FM

Rad

io

Dig

ital

Bro

adca

st

SDV VOD

DO

CS

IS3.

0

The next thing

IPTVDOCSISBypass

Frequency Tiers

Analogue TierBroadcast Digital Tier

HSD TierSwitched Digital Tier

VOD TierIPTV DOCSIS Tier

“The Next Thing” Tier

EdgeResource Mgr

© 2006 Cisco Systems, Inc. All rights reserved. 20

Future #2 – Channel Bonding

Forward Path (Downstream)

85 150 200 250 300 350 400 450 500 550 600 650 700 750 800 860

Ana

log

TV

(Ban

d III

)

FM

Rad

io

N-channel bonded DOCSISBroadcast video, VOD,

HSD, VoIP, nPVR

N-channel bonded DOCSIS 3.0 IP pipe carrying all services

2008: N= 3, 4, 82015: N= ?

© 2006 Cisco Systems, Inc. All rights reserved. 21

Future #2 – Channel Bonding

Forward Path (Downstream)

85 150 200 250 300 350 400 450 500 550 600 650 700 750 800 860

Ana

log

TV

(Ban

d III

)

FM

Rad

io

N-channel bonded DOCSISBroadcast video, VOD,

HSD, VoIP, nPVR

© 2006 Cisco Systems, Inc. All rights reserved. 22

A look inside the pipe

0 Mbps

300-5000 Mbps

Voice Streams

All remaining bandwidth supports data services

Unified control point for:Authentication, QoS, Network Mgmt, Monitoring

HD MPEG-4 VBR StreamsSDV-VOD-VideoConference

© 2006 Cisco Systems, Inc. All rights reserved. 23

Cable IPTV Benefits

� VBR Video Services

� Fat Pipes

� Ease of Deployment in Multi-Phy Systems

� One Network - Operational Efficiencies

� Single Control Point for Service Control, Acceleration

� Reduced STB Cost

� End-to-End IP Connectivity

� Easier Access to Multiple/Varied CPE Devices

© 2006 Cisco Systems, Inc. All rights reserved. 24

� Cable is becoming a converged network-- Universal edge resource and management

-- Linear and on-demand video service convergence

-- IP provides a converged transport for all services

� DOCSIS and IP emerges as a new transport for video-- With enhanced experience and bandwidth efficiency

� Switched video delivery provides bandwidth efficiency-- Both SDV and VDOC provide such capabilities

Summary

© 2006 Cisco Systems, Inc. All rights reserved. 25