1 Brain Storming on NGN 21 May 2001 Chae-Sub, LEE.

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Brain Storming on NGN

21 May 2001

Chae-Sub, LEE

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Contents

1. Scope and ToR2. Service requirements3. Environments analysis4. Continuation of GII5. Implementation issues6. Role of ITU-T and SG 13

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1. Scope and ToR Make common understanding of what is next step

Try to sketch it brief as requirements

Find contribution area and work items

Role of ITU-T and SG 13

Beyond IP Continue with IP

Services and Environments Horizontal and Vertical views

Standard areas Other SDOs

Target Time

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2. Service requirementsMoving Trend of Service Requirements

Telex

Voice

FAX

FAX

Voice

Data

Image/Video

FAX

Voice

WEB

Vo IP

Vo ATM

Vo MPLS

Vo DSL

Vo Ethernet

mid 1970 ~ 1980 mid 1980 ~ 1990 mid 1990 ~ today

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Service Requirements in Near Future

MultimediaChatting

Tele-gaming

PacketVoice

Others (?)CAMCORDER with Ethernet

VHE(Ethernet)

or(others)

?

Impact

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Requested Target Services for Next

Until 2004 after 2004 ~ 2008

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Circuit based

Electronic based

Packet based transport

Optic based transmission

Integrated Telecommunication Infrastructure

Voice

Data

Datainc.

VoiceIntegrated Service

Clientto

Server

Endto

EndUser friendly control

Full Open and Competition Environments

Telecom. Business

Broadcasting BusinessTele-Broadcasting Business

3. Environments AnalysisChange of Environment

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Network Evolution Trends

• Optical Infrastructure– Capacity imperative

• Packet Based Transport & Switching– Multi-service flexibility

• Location of Intelligence (Core vs Edge)– QoS and Bandwidth Granularity/Control

• Convergence of Control & Management Aspects– E.g., Dynamic routing vs protection switching

• Interworking with Legacy Systems

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Voice

Data

Video

Media IntegratedMultimedia

Telecom-basedMultimedia

Broadcas.-basedMultimedia

Internet-basedMultimedia

Service/Business IntegratedMultimedia Business Model

Refer. Point of Interc.

Service Requirements

Opera. & Provis. Guide

Impacting Areas

Towards Tele-Broadcasting

Simplified Features of Wireless World

Simplified Features of Wire World

Regulation

Standard

Regulation

Standard

Tele-Broadcasting

World

10

30

1996 199919981997 20032000 2001 2002

Fixed telephone serviceCellular & PCS

Internet service users

40

20

50

10

Pen

etra

tio

n

(%)

Market Changes and its Push

Circuit based

Packet over

Circuit

Packet based

Circuit over

Packet

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User Terminal Environments of Today

Phone

FAX

PC

TV

PC FAX

PC TV

Multimedia PC

Data inc.Everything

• Real Time DATA• Non-Real Time DATA

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Expected Future Transition Trend

Past : Seper. of Voice & Data Transp.

Circuit Switch.Access Capa.

Circuit Switch.Transp. Capa.

Packet Switch.Transp. Capa.

Present : Sep. of V & D Access

xDSL / FTTx

Circuit Switch.Access Capa.

Circuit Switch.Transp. Capa.

Packet Switch.Transp. Capa.

Packet Switch.Access Capa.

Near Future : Integration of V & D Transport

VoIP / VToA

Circuit Switch.Access Capa.

Circuit Switch.Transp. Capa.

Packet Switch.Transp. Capa.

Packet Switch.Access Capa.

Future : Integration of V & D Access and Transp.

Packet Switch.Transp. Capa.

Packet Switch.Access Capa.

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Changing Role of IP

C Transp. of Inform. M

Functional components of IP

Current Role of IP

Future Role of IP

C Transp. of Inform. M

Transp of Cont. Sig. U M

Functional components of IP

C U Transp. Of Mang. Sig.

IP based Control (IP Dial-tone)

IP based Multimedia (?)

IP based Management

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4. Continuation of GII

GII

64 kbps basedISDN

ATM/B-ISDN

IP basednetwork

Multi-Protocolbased network NGN

Recognized unique name for Information Societywithout implementation of Technologies

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Net.1

App.a

Net.2

App.b

Net.3

App.c

Net.4

App.B

Net.1

App.a

Net.2

App.b

Net.3

App.c

Net.4Net.1

IP Platform

Net.2

App.a, b, c

Net.3

App.B

Net.4Net.1

IP Platform

Net.2

App.a, b, c, B

Net.3

NGNPlatform

Past Present

Near future Future

Narrowband Broadband

Expected Evolution Trend toward GII

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5. Implementation IssuesServer based Configuration

Net. A

Net. CNet. D

Net. B

Service /Application 1

Service /Application 2

Service /Application 3

Service /Application 4

Connectivity Network

NamingServer

PolicyServer

FeatureServer

Subscrib.Server

ResourceServer

Server (Middleware)Network

Service /Application 1

Service /Application 2

Service /Application 3

Service /Application 4

Service /Application

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Switching

Routing

Backbone Transmission NetworkBackbone Transmission Network

Access Switching Access Switching NetworkNetwork

Access Access NetworkNetwork

Accessing- ISDN- ADSL- Cable Modem- FLC- FTTH

Addressing- IPv4, v6- E.164- NSAP

NetworkNetworkManagementManagement

Multiplexing- IP- ATM- F/R- SDH/PDH- WDM

Transmission- ATM- SDH- WDM

Switching & Routing- IP- MPLS- ATM

ManagementPlatform- CMIP- SNMP- JAVA- CORBA- DCOM

Backbone Switching NetworkBackbone Switching Network

Diversity of Access Technologies

PolicingAdaptation

PolicingAdaptation

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C.S. LEE’s stupid idea No. 1 to be implemented in NGN

New Standards on Access

Data inc. Voice

ADSL

Voice + DATA

Full DATA

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A.N

A.N

A.N

A.N

QoS 1QoS 2

QoS 3

QoS 1

3.1 kHz AudioBearer Network

64 kbps CM/PMBearer Network

~ 2 Mbps FMBearer Network

ATMBearer Network

IPBearer Network

ApplicationServer

PolicingServer

AccessNet. Part

CoreNetwork

• Same service but different path• Use current bearer networks in Multimedia era with integrated Access Network

Points of Intelligence

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C.S. LEE’s stupid idea No. 2 to be implemented in NGN

Core Net(VariousBearer)

IntegratedAccess Unit

(e.g. NGN Set Top Box)

IntelligentAccess Server

New Signaling Mechanism or Protocol

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ADSLNT

PPP enc. in PPPoE

DSLAM

termination : PPPoE

PPP enc. in L2TP ISP X

termination: PPP ISP X

PoP

RadiusServer

ISP X

Service

Selection

Gateway

PoP

ISP X*

Radius Server

Network Operator A Network Operator B ISP X, X*

termination: PPP ISP X*

( L2TP)

(Network Operator B*)

Complication of Networking (1)

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ATM

AAL

Ethernet

PPP

IP

ATM

AAL

Ethernet

PPP

IP

Ethernet

PPP

IP

PPP

IP

IP

ADSLNT

DSLAM

BB-PoP

Ethernet-physics

ADSL-physics STM-1physics physics

Complication of Networking (2)

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C.S. LEE’s stupid idea No. 3 to be implemented in NGN

ATM

AAL

Ethernet

PPP

IP

physics

ATM

AAL

Ethernet

PPP

IP

AAL

Ethernet

PPP

IP

Ethernet

PPP

IP

PPP

IP IP

Need to make simple structure

And think about others (beyond IP)

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Computer/Consumer Technologies

Broad-castingInfra.

Telec.Infra.

IP Platform or Others

Structural Model of Convergence

Tele-gaming

TVMail

Interac.TV

WebTV/FM

TVInternet

E-Comm.

New Technologiesand their Products

Interworking between twoInfrastructures andtheir convergence

Networking Technologiesand their Adaptations

New Applications and theirService Interworking

RelationsEnterprise Model Regulation

UserOperator

ProgramProvider

RegulatorPossible Convergence Model of Tele-Broadcasting

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C.S. LEE’s stupid idea No. 4 to be implemented in NGN

Broad-castingInfra.

Tele-com.Infra.

Convergence /Integration

Continue IP Platformor New Platform

Optic

DBS

Analysis of mutual impacts

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6. Role of ITU-T and SG 13

• Application of IP technology into Telecom infra and• specify Interworking between IP and Telecom service/network

IP IssuesPacket based infrastructure

• New architecture for full Packet based infrastructure (inc.Voice)• Migration path from Circuit based to Packet based infra (inc. Interworking)• Service and network capabilities for providing Packet based services• New access technology, OAM and Performance study based on full Packet infra

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Multi-protocolNetworks

64kbps based ISDN

ATM based ISDN

Service classification and definition

PRM

UNINNI

Archi.&

Spec.

Accounting, Charging & Billing

Functional Model

Ref. Config. Model

U/C/M-pl. related Protocol

QoS/NP

Addressing/Naming

Interworking

OAM&P

I SeriesRec.

Y SeriesRecommendation

Network Evolution and its required Functional Study Areas

ITU-TActivity

NGN

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C.S. LEE’s stupid idea No. 5 to be implemented in NGN

SDO1 SDOn

ITUSDO1 SDOn

SDO1 SDOn

ITU

NGN Project Which type ?

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Standard Bodies(ITU, IETF, ATM-F……)

MPLS

MPOA IPOA

Thank you foryour attention