Copyright (C) 2008 Nippon Telegraph and Telephone Corporation. All rights reserved. 1

International Institute of Communications2008 Annual Conference in Hong Kong

NTT’s Next Generation NTT’s Next Generation Network DevelopmentNetwork DevelopmentNTT’s Next Generation NTT’s Next Generation Network DevelopmentNetwork Development

Takashi Ebihara

Next Generation Network Office Technology Planning Department

Nippon Telegraph and Telephone Corporation

November 2008

Copyright (C) 2008 Nippon Telegraph and Telephone Corporation. All rights reserved. 2

Agenda

• Broadband Deployment in Japan

• NTT’s NGN Development

– Key Features of NGN

– Deployment Plan

– Open Innovation through NGN

• Conclusion

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0

5

10

CATV

15MBroadband Mkt Share

29M

42%

CATV13%

45%

32%

41%27%13M

ADSL

FTTH

ＮＴＴWEST

ＮＴＴEASTOthers

Broadband Deployment in Japan

As of Jun 08 (Source: MIC)

FTTH Mkt Share

JUN 03

DEC 03

JUN 04

DEC 04

JUN 05

DEC 05

JUN 06

DEC 06

JUN 07

DEC 07

JUN 08

Annual Growth<Jun 07 Jun 08>

FTTH: +35%FTTH: +35%

AADSL: -11%DSL: -11%

ADSL

FTTH 12M

4M

13M

CATV

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3G Mobile Deployment in Japan

Source: Telecommunications Carriers Association of Japan

20

40

60

80

100M

2004 2005 2006 2007As of Dec 07

下り 3.6Mbps 上り 384Kbps

833M<83%>

172M<17%>

HSDPA launched by NTT Docomo in Aug 06

３Ｇ　

２Ｇ

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Why NGN Now?

DependableSocial

Infrastructure

New Business OpportunitiesProductivity Enhancement

Agility to Market

Safe & SecureMore Fun

More Convenient

Society

Business Individuals

Economic GrowthEmerging Social Issues

<Aging, Medical & Health Care, Education, Disaster Management etc.>

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Background of NGN Development

NTT GroupIncreasing Internet traffic

Emerging converged services

Maturing IP technology

Standardization activities

Market & Technology

Secured full IP NetworksSecured full IP Networks

Revenue Generation thru new service

Simple & economical networks

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Key Features of NTT’s NGN

NGNNGN

Open InterfacesOpen InterfacesEnhanced ReliabilityEnhanced Reliability

Increased SecurityIncreased SecurityService Quality AssuranceService Quality Assurance

One of the world-first NGNs commercially implementedCombining the advantages of traditional telephone networks and

IP-based networks

One of the world-first NGNs commercially implementedCombining the advantages of traditional telephone networks and

IP-based networks

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UNIEdge Node

Call Admission Signal

Network Control Server

Core NetworkOptical Access

NGN

Three prioritized classes to fulfill variety of customer needs e.g. -High-Definition TV conference

-7KHz high-quality voice telephony-Retransmission of over-the-air TV programs

Three prioritized classes to fulfill variety of customer needs e.g. -High-Definition TV conference

-7KHz high-quality voice telephony-Retransmission of over-the-air TV programs

1. End-to-end Quality Assurance

Top Prioritized

High Prioritized

Prioritized

Best Effort

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2. Increased Security

Blocking spoofing and unauthorized access

- Unique NGN circuit ID is allocated and checked for spoofing protection - Blocking unauthorized access and unwanted traffic at edge nodes

Blocking spoofing and unauthorized access

- Unique NGN circuit ID is allocated and checked for spoofing protection - Blocking unauthorized access and unwanted traffic at edge nodes

Edge node

Control signal

Voice & Data

Unauthorized access

spoofing

Network Control Server

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3. Enhanced Reliability

Designed to be as reliable and stable as traditional telephone networks

- Network architecture with scalability to tens of millions customers

- Reliability enhanced with redundancy and management capabilities etc.

Designed to be as reliable and stable as traditional telephone networks

- Network architecture with scalability to tens of millions customers

- Reliability enhanced with redundancy and management capabilities etc.

Core network

Edge network

Core node

Edge node

Network control server

Redundancy in architectureRedundancy in architecture

Traffic control in case of congestedTraffic control in case of congested

Prioritize critical communications in times of disasters

Prioritize critical communications in times of disasters

Non-prioritized Communications

Prioritized Communications

Traffic Control SystemTraffic Control System

・・

・

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4. Open Interfaces for Innovation

Open access to NTT’s NGN by publishing interconnection interfaces

- Creates eco-system for a rich diversity of new businesses and services

- Enables collaborative partners to develop new innovative business models that best utilize NGN

Open access to NTT’s NGN by publishing interconnection interfaces

- Creates eco-system for a rich diversity of new businesses and services

- Enables collaborative partners to develop new innovative business models that best utilize NGN

VoD

SNISNINNINNI

UNIUNI

Other NGNOther NGN

Ethernet service providersEthernet service providers

Internet service providersInternet service providers

IPbroadcasting

IPbroadcasting VODVOD

TelephoneVideophoneTelephone

VideophoneISP

accessISP

access IntranetIntranet

IP broadcast

NGN

HGW

Multicast Unicast

Interactive(inside network)

Interactive(network-to-network)

Internetconnection

Ethernetservice

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NGN Deployment Plan

Mar 08: NGN commercial launch in Tokyo & OsakaMar 08: NGN commercial launch in Tokyo & Osaka

Mar 2008End of FY2010End of FY2008

FY 2010: Expand to entire current fiber access areasFY 2010: Expand to entire current fiber access areas

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Evolution of NGN in Future

Expand NGN service area to current fiber access service area

FY 2010 FY 2012FY 2008

NGN + LTENGN + LTE<Full IP Network><Full IP Network>

NGN + LTENGN + LTE<Full IP Network><Full IP Network>

● 地域ＩＰ網からＮＧＮへのマイグレーション完了NGN <fixed>NGN <fixed>

++3G Mobile3G Mobile

NGN <fixed>NGN <fixed>++

3G Mobile3G Mobile

Full-fledged Full-fledged Service Service

ConvergencConvergencee

Full-fledged Full-fledged Service Service

ConvergencConvergencee

FY 2011FY 2009

LTE to be launched

20 M FTTx subs (10M NGN subs)

Migration from existing IP network to NGN to be completed

Creating and rolling out broadband and ubiquitous services in line with customer needs by leveraging full-IP network infrastructureCreating and rolling out broadband and ubiquitous services in line with customer needs by leveraging full-IP network infrastructure

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Broadband Ubiquitous Society

Mobile

HomeBusiness

Telepresence

Presence

Mobile broadcasting

IPTV N-VOD

Digital cinema

Virtual cohabitation & Virtual officeBroadband

Ubiquitous Society

Home control

7-khz high-quality telephony

Mobile Computing

Femtocell

One-number phone

Telemedicine

Digital signage

Metaverse (Virtual space sharing)

Healthcare

SaaS

Telework

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Joint-Development of Innovative Services

Internet

NGN

ApplicationPlatform

SNISNI NNI

user

Broadcasting FinanceConsumerElectronics

Collaboration with other industry partners

UNI

A variety of IP-enabled devices

ISPISP

Videodistribution

Open Innovation&

Value Creation

Other NGN, etc

New collaborative opportunities by the NGN’s open interfaces so as to create new applications that best utilize NGNNew collaborative opportunities by the NGN’s open interfaces so as to create new applications that best utilize NGN

Medicine AdvertisementEducationHealthcare

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Next-Generation Services Joint-Development Forum

Service Creation & Business Development

Next-GenerationServices

Joint-DevelopmentForum

　　　　　　　　　　

Business Partners

Info & Environment Incubation Support

Biz & Tech Seminar Marketing & Technology Consulting

NGN Test Beds

NTT’s R&D InputsExhibition Space

Value-added Interfaces

Capital

- Joint-development with business partners from various industries- Eco-system for service creation & business development- Joint-development with business partners from various industries- Eco-system for service creation & business development

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Conclusion

FTTH > ADSL & 80+% 3G penetration

Time to go for NGN to leverage ultra-fast access

NGN: Taking best parts of PSTN and IP networks

Reliable, Secure, Service Assurance & Open Interfaces

20M fiber access by FY2010 and

complete NGN migration by FY2012

Various collaborative opportunities for service creation

Conducive to tackling social issues