standardization trends for the next-generation network (ngn) and its transport networks

1Copyright (C) 2006 NTT Advanced Technology CorporationAPNOMS 2006, Busan, Korea

September 28, 2006

ITU-T SG15 Chairman, NTT Senior Advisor

NTT Advanced Technology Corporation

Yoichi MAEDA

Standardization Trends for the Next-Generation Network (NGN) and

its Transport Networks


OutlineOutline

1.1. Overview of NGN StandardizationOverview of NGN Standardization1.1. Overview of NGN StandardizationOverview of NGN Standardization

2. Transport Networks for NGN2. Transport Networks for NGN2. Transport Networks for NGN2. Transport Networks for NGN

3. Transport Network Standards in SG153. Transport Network Standards in SG153. Transport Network Standards in SG153. Transport Network Standards in SG15

4. Future Trend of NGN related Standards4. Future Trend of NGN related Standards4. Future Trend of NGN related Standards4. Future Trend of NGN related Standards


Why NGN?

The NGN concept takes into consideration new realities in the telecommunication industry characterized by factors such as: the need to converge and optimize the operating networks and the extraordinary expansion of digital traffic (i.e., increasing demand for new multimedia services, increasing demand for mobility, etc.).


Background: ITU-T’s NGN Work

In July 2003, the Joint Rapporteur Group on NGN (JRG-NGN) was established in SG13 to study NGN requirements, the general reference model, functional requirements and architecture of the NGN, and evolution to NGN.

In June 2004,the JRG-NGN produced two Recs. Y.2001; General overview of NGN and Y. 2011; General principles and ref. model for NGN, and a Focus Group on NGN (FGNGN) was formed to accerelate NGN activities initiated by JRG-NGN.

In November 2005, the FGNGN provided a scope of NGN Release 1 and its mandate was extended.


NGN Global Standards Initiative

Now this NGN work is carried forward by ITU-T’s NGN-Global Standards Initiative (NGN-GSI) to encompass all NGN work across ITU-T SGs and to provide the global standards of NGN.

NGN-GSI Objectives and Goals: to address the market needs for NGN standards, to produce global standards for NGN, to further strengthen the ITU-T’s leading role amongst the groups in NGN standard work, to keep visibility of the work spread between different technical groups in ITU-T.


NGN Study Topics

ITU-T activities are related to the establishment of architectures, interface specifications, and implementation guidelines in the form of ITU-T Recommendations for the realization of NGN. NGN study topics include;

Evolution of existing networks to NGN QoS (Quality of Service) for NGN Interoperability between different sys. & NWs Security issues in architecture, QoS, NW management, mobility, charging and payment Generalized Mobility Service Capabilities and Architecture


NGN Release 1 at July 2006Rec. Title SG Status

Y.2000 Sup. NGN Release 1 scope SG13 ---

Y.2201 NGN Release 1 Requirements SG13 TAP

Y.2012 Functional requirements and architecture of the NGN SG13 AAP

Y.2012 Sup. Session/Border Control (S/BC) functions SG13 ---

Y.2021 IMS for Next Generation Networks SG13 AAP

Y.2031 PSTN/ISDN emulation architecture SG13 AAP

Y.2111Resource and admission control functions in Next Generation Networks

SG13 AAP

Y.2171Admission control priority levels in Next Generation Networks

SG13 AAP

Y.2701 Security requirements for NGN Release 1 SG13 TAP

Y.2261 PSTN/ISDN evolution to NGN SG13 AAP

Y.2271 Call server based PSTN/ISDN emulation SG13 AAP

Y.2091 Terms and definitions for Next Generation Networks SG13 AAP

Q.1706 Mobility Management Requirements for NGN SG19 AAP




3.3. Transport Network Standards in SG15Transport Network Standards in SG153.3. Transport Network Standards in SG15Transport Network Standards in SG15



Definition of NGN and the Transport

Rec. Y.2001 defines NGN as “A packet-based network able to provide telecommunication services and able to make use of multiple broadband, QoS-enabled transport technologies, and in which service-related functions are independent from underlying transport-related technologies. It enables unfettered access for users to networks and to competing service providers and/or services of their choice. It supports generalized mobility which will allow consistent and ubiquitous provision of services to users.”

Broadband Access solutions to support NGN servicesADSL, VDSL, B-PON, G-PON, HomePNATransport networks to support Packet-based network.SDH, OTN, GFP, MPLS, Ethernet networking


NGN Transport

NGN Services

Telephone Services

Data Services (WWW, e-mail, etc)

Video Services (TV, movie, etc)

Point to point, Point to multipoint, Multipoint to multipoint

Point to point, Point to multipoint, Multipoint to multipoint

NGN - Convergence Model

Horizontally-Integrated Network

ITU-T Recommendation Y.2011


NGN Basic Functional Architecture

Y.2012; NGN functional requirements and architecture of the NGN

ControlMediaManagement

Transport stratum

Service stratum

Man

agem

ent

Fu

nct

ion

s

ANI

Transport Control Functions

Resource and Admission

Control Functions

Network AttachmentControl Functions

Network AttachmentControl Functions

NNIUNI

Application Support Functions & Service Support Functions

Applications

Transport Functions

End-

User

FunctionsOther

Networks

Service Control FunctionsService UserService UserProfiles

Transport User Transport User Profiles


SG15 responsibility and mandates

Optical and other transport network infrastructure

Focal point in ITU-T is for the development of standards on optical and other transport network infrastructures, systems, equipment, optical fibers, and the corresponding control plane technologies to enable the evolution toward intelligent transport networks. This encompasses the development of related standards for the customer premises, access, metropolitan and long haul sections of communication networks. Lead SG for: Access Network Transport (ANT) Optical Technology


SG15 Study Group Structure

WP 1/15 Optical and metallic access networkLead study activities on Access Network Transport standards

Access network related standards. (PON and xDSL) WP 2/15 Optical transport network technology

Optical transport network Layer 1 related standards.(Optical fibres & cables, terrestrial and submarine systems, interfaces, components & subsystems)

WP 3/15 Optical transport network structureLead study activities on Optical Technology standards (Network architecture; network protection/restoration, synchronization; signal & frame structure, interfaces; network management)


Hot Topics in WP1/15

Network Access Key achievements; B/G-PON, ADSL, VDSL2 Optical access: Higher bit rates; increased

reach; improved system resilience, management and control

DSL access: Reflect deployment experience; enhanced system mgmt.; new service requirements; increased reach and bit rates (100 Mbit/s); single ended line testing

Home Networking : New study area on Home Network architecture and the transport technologies over existing customer premises wiring.



OTN Technology Key achievements; CWDM, 40 Gbit/s NNI, FEC New fibre characteristics using other wavelength

regions More optical channels per fibre New transmission technologies (Soliton) High capacity DWDM and > 40 Gbit/s

transmission system. Free space optical line system interfaces Raman optical amplifiers Polarization Mode Dispersion compensators



OTN Structure Key achievements; SDH, GFP, T-MPLS, ASON,

Ethernetworking, etc. Improved network protection & restoration Enhancements to Ethernet and other packet

based data services over transport networks New architectures to deliver multipoint services Synchronization issues of packet based

networks Evolution of control plane technologies for

efficient connection configuration and fast optical network restoration


SG15 Public relations

Standards collaboration IEC, IEEE, IETF, MEF, OIF, TMF, ATIS SG4(TMN), SG6(Outside plant), SG13(NGN) JCA (Joint Coordination Activity)-NGN JCA-HN (Home Networking) FG (Focus Group)-IPTV

G-PON Interoperability Showcase at ITU Telecom World 2006 4-8 December 2006, Hong Kong, China (TBD)

Joint event of SG15 and IEEE(802.1 &802.3) May 31 & June 1, 2007, Geneva (TBD)


NGN Standardization Trends

ETSI TISPAN：• DSL access• 3GPP IMS core

network control

TSACC (Canada):• Cyber Security

ATIS (U.S.A.):• IPTV (IIF)• Network Security

and QoS

ACIF Australia):• NGN Project

Asia (CJK):• FTTH access• J: Ubiquitous • K: BcN• C: Soft Switch

ITU-T:• SG13 (NGN-GSI), SG11 (Protocol ）• SG19 (Mobility), SG4 (NGNM-FG)• SG16 (Multimedia) SG17 (Security)• SG15 (Transport) SG12 (QoS)• IPTV-FG


- NTT plans to provide FTTH services to 30M users by 2010.- Monthly user increment for FTTH passes ADSL in 2004.

Broadband service users in JapanBroadband service users in Japan

Users (thousand)

Monthly User Increment

March, 2006

(year)2001 2002 2003 2004 2005

ADSL

FTTH

100

10,000

CATV1,000

10

5.5M

14.5M

3.3M

2006


SG15 May 2005Total 259

Participants of ITU-T meetings

SG13 July 2006Total 262

SG4 September 2005Total 67

IPTV-FG April 2006Total 115

USAJapanChina

Germany

UK

Italy

Canada

France

Others

Korea

22

15

1411

87

521

30

62

44

3820

17

17

874

4217

9

55222

1

23

1

52

52

3735

19

9853

42


New topics in NGN space

The NGN space is expanding. New topics having an impact on NGN include: Home networking IPTV RFID (NID: Network aspects of Identification) Grids

The scope of the NGN programme will be expanded to include the necessary standards work


Thank you

The beckoning cat, Maneki Neko,brings Luck.

standardization trends for the next-generation network (ngn) and its transport networks

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