international telecommunication union global standards role in strategic planning for next...

International Telecommunication Union

Global Standards role in strategic planning for Next Generation

Networks & migration

Arshey Odedra Arshey Odedra ©©

Counsellor ITU-T [[email protected]]Counsellor ITU-T [[email protected]]International Telecommunication UnionInternational Telecommunication Union[ITU Forum for RWG for Asia Pacific Region, New Delhi 3-5 April [ITU Forum for RWG for Asia Pacific Region, New Delhi 3-5 April

2007 ]2007 ]

ITU Forum for RWG for Asia Pacific Region, New Delhi 3-5 April 2007ITU Forum for RWG for Asia Pacific Region, New Delhi 3-5 April 2007 Arshey Odedra ITU-T ©©

• ITU Overview

• Functional blocks in NGN.

• Q o S – Quality of Service in NGN& customer Q o E

• Migration of legacy to NGN services, Emulation and simulation

Global Standards role in strategic planning for Next Generation Networks & migration


ITU Structure

General Secretariat: Coordinates and manages the administrative and financial aspects of the Union’s activities

ITU-R: Coordinates radio communications, radio-frequency spectrum management and wireless services.

ITU-D: Technical assistance and deployment of telecom networks and services in developing and least developed countries to develop communication services.

ITU-T: Telecommunication standardization on a world-wide basis. Ensures the efficient and on-time production of high quality standards covering all fields of telecommunications (technical, operating and tariff issues).The Secretariat of ITU-T (TSB) provides services to ITU-T participants.

Plenipotentiary Conference

ITU Council

ITU-T

World Telecommunication Standardization Assembly

ITU-RWorld Radiocommunication

ConferenceRadiocommunication

Assembly

ITU-D

World Telecommunication Development Conference

GeneralSecretariat

ITU-TTSB

World Telecommunication Standardization Assembly


Standardization Groups

Study Groups• This is where the standardization work take place. • Responsibility and mandates of each Study Group, including

study questions, is set out by WTSA. • TSAG may review priorities, programmes, and provide

guidelines for SGs.

Focus Groups• Create forum-like entities under ITU-T Study Group, on a well-

defined topic, scheduled for completion at a specific short time.

• Goal: encourage participation of non-members / members of other organizations (forums/consortiums) [Recent examples: FG IdM, FG IPTV, FG NGN etc.]

Regional Groups• According to WTSA-04 Res.54, regional groups can be

established in order to facilitate developing counties participation in ITU-T activities.


SG 2: Operational aspects of service provision, networks and performance

SG 3: Tariff and accounting principles, telecommunication economic and policy issues

SG 4: Telecommunications ManagementSG 5: Protection against electromagnetic

environment effectsSG 6: Outside Plant and related indoor installationsSG 9: Integrated broadband cable networks and

television and sound transmissionSG 11: Signalling requirements and protocolsSG 12: Performance and Quality of ServiceSG 13: Next Generation NetworksSG 15: Optical and other Transport Network

InfrastructuresSG 16: Multimedia Terminals, Systems and

ApplicationsSG 17: Security, Languages and Telecommunications

SoftwareSG 19: Mobile telecommunication networks

ITU-T Study Groups


Characteristics of ITU-T

1. Work (mostly) done in Study Groups (13 of them)2. ITU-T Product: Recommendations (= “standards”)

Example: Q.931, G992.1 (ADSL)

3. Unique partnership of private sector (SM-Sector Members) & government (MS-Member States)

Today, 95% work (technical) driven by private sector (SM), 5% work (regulatory issues) by attention of MS

4. Truly global5. Consensus decisions6. Very flexible7. Fast & transparent procedures8. Global Brand name9. IPR Policy and copyright


Functional blocks in NGN.Functional blocks in NGN.

Functional Architecture


NGN Architectures Today’s networks

o Built on “service=technology” pipes.

o Every network service has its own network platform:• FR, ATM, MPLS IP VPN,

Internet, PSTN etc.

Internet

Fram

e Relay

AT

M

SD

H


What’s New:Horizontally-integrated Network

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

ITU-T Recommendation Y.2011


Key Concepts for NGN Architecture

o NGN Architectures are based on a few key NGN concepts:

• Separation between service and transport

• Personal and Terminal Mobility

• Resource and admission control

• QoS selection & control

• Accommodation of legacy terminals and systems

NGN Architectures


NGN Functional Architecture Overview (Rec. Y.2012(09/2006)/FRA)

Transport stratum

Service stratum

ControlMedia

Man

agem

ent

Func

tions

Management

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-UserFunctions

OtherNetworks

Service ControlFunctions

Service UserProfiles

Service UserProfiles

Transport User Profiles

Transport User Profiles


QoS - Quality of Service in QoS - Quality of Service in NGNNGN

& customer QoE& customer QoE


Why QoS need in NGN?

# In NGN Multiple QoS technologies and Operator Domains - Coexistence- interworking

# With End to End QoS

# QoS study topics include, e.g.:• General terminology, QoS classes, traffic attributes and network performance metrics• Interworking and harmonization of QoS classes• Signalling desired end to end QoS• Resource control (dynamic, policy based)• Performance monitoring and measurement

ISP-1(Intserv)

ISP-2(over-prov)

BB-1(Diffserv)

BB-2(MPLS-TE)

Cable

xDSL

3GPP


1.Users evaluate quality in terms of perceived utility for a task or experience (value)

2.Predictable, consistent quality valued more highly than variable, “best available”

3.Cost of service (financial and user effort) influences that perception

4.Important to meet (and hence know) user expectations of QoSLow QoE during Wireless

• 65% - Try another access technology• 22% - Forget it• 13% - Try later

Low QoE during Wireless• 65% - Try another access technology• 22% - Forget it• 13% - Try later

QoE drives service usageQoE drives service usage

Why QoE ?


o QoS - Quality of Service QoS (ITU-T E.800, 08/1994)

• Collective effect of service performances which determine

the degree of satisfaction of a user of the service

o NP- Network Performance (ITU-T I.350, 03/1993)

• To be measured in terms of parameters which are

meaningful to the network provider and are used for the

purposes of system design, configuration, operation and

maintenance

• To be defined independently of terminal performance and

user actions

o QoE - Quality of Experience (ITU-T SG12 2004)

• Quality of Experience (QoE) is a measure of the overall

acceptability of an application or service, as perceived by

the user.

QoS, NP and QoE


Migration of legacy to NGN Migration of legacy to NGN services Emulation and services Emulation and

simulation simulation


PSTN/ISDN services

Questions to consider:• emulate all services? • values to operators and end-users? • be conservative in selecting services for emulation or

simulation?

Questions to consider:• emulate all services? • values to operators and end-users? • be conservative in selecting services for emulation or

simulation?

Call waiting VPNCalling Line ID 800/900

COLP/COLR

Billing

MCID Coin op phonesCalling name ID P Carrier Selection

Calling name ID R CentrexMLPP

ResidentialCall Baring Business

Outgoing Call Baring LNP

Call Transfer

Operator services

Call Hold Long distance

Conference Calling Emergency svc


Two terms defined:

Emulationo Provision of PSTN/ISDN service capabilities

and interfaces using adaptation to an IP infrastructure

[ Legacy terminals to continue to use existing telecommunication services while connected to an NGN network ].

Simulationo Provision of PSTN/ISDN-like service

capabilities using session control over IP interfaces and infrastructure

[ NGN terminals in an NGN network for telecommunication services similar to legacy PSTN/ISDN services]


ITU-T Recommendations:

o Y.2261 - PSTN/ISDN evolution to NGN (Approved 09/2006) Describes possible ways of evolving PSTN/ISDNs to NGNs. It describes

scenarios for evolution of PSTN/ISDN transport, management, signalling and control parts to NGN

o Y.2262 PSTN/ISDN emulation and simulation (Approved 12/2006) Describes PSTN/ISDN emulation and simulation. PSTN/ISDN Emulation

could potentially provide PSTN/ISDN service capabilities and PSTN/ISDN Simulation could potentially provide PSTN/ISDN-like service capabilities.

o Y.2031 - The PSTN emulation architecture (Approved 09/2006) Describes the functional architecture for PSTN/ISDN emulation

o Y.2271 – Call server based PSTN/ISDN emulation (Apprvd. 09/2006)


Many separate Networks & Interworking….

• Multiple, interworked, interdependent networks• Each network has its own control plane and management plane• Diverse control and management architectures

• Multiple, interworked, interdependent networks• Each network has its own control plane and management plane• Diverse control and management architectures

IWF

IP

EthernetNetworks

Frame Relay

PSTN/ISDN

PLMN

ATM

IWFIWF

IWF

IWF

IWF

IWF

IWF

IWF

IWF


Convergences

Fixed NetworkFixed Network

InternetInternet

ICTICT

Convergence

BroadcastingBroadcasting

Cable TVCable TV

othersothers

WirelessWireless

MobileMobile


International SDOs: ISO, IEC, WSC; ISO/IEC JTC1

Regional SDOs: TIA, ATIS (US carrier requirements), TSACC, TTA, TTC, ARIB, CCSA, ETSI(TISPAN,3GPP), ACIF, GSC

For internet: IETF/ISOC (IPv6, SIP extensions, MPLS, etc), ICANN, ccTLDs, etc.

Many Forums/SDOs: such as IEEE (802.11x – Wi-Fi hotspots), 3GPPs( IMS), ATM/MPLS/FR, MEF, TMF(Standardised OSS components), DSL frum,OMA (Mobile) Applications, …

Regional Telecom organizations: APT, ATU, CITEL, RCC, CEPT, ETNO, …

etc…(SDO = Standards Development Organization)

International Cooperation


NGN-GSI (2006)http://www.itu.int/ITU-T/ngn/index.phtml

• Co-located Joint Activity : SG 11 + 13 + 19 and 2 + 12 + 15 + 16 + 17• Areas of coverage - Release 2 Services and Capabilities - Functional Architectures and Requirements - Mobility Management and FMC - IPv6 application into NGN - End-End QoS - NGN Signaling with Resource Admission Control - Migration and Interworking aspects - NGN Security - IPTV-FG from April 2006 - Home Networking (JCA-HN from March 2005) - Networked aspects of Identification services (JCA-NID from July 2006; FG Id Managt from

Feb 2007) ….others

• Co-located Joint Activity : SG 11 + 13 + 19 and 2 + 12 + 15 + 16 + 17• Areas of coverage - Release 2 Services and Capabilities - Functional Architectures and Requirements - Mobility Management and FMC - IPv6 application into NGN - End-End QoS - NGN Signaling with Resource Admission Control - Migration and Interworking aspects - NGN Security - IPTV-FG from April 2006 - Home Networking (JCA-HN from March 2005) - Networked aspects of Identification services (JCA-NID from July 2006; FG Id Managt from

Feb 2007) ….others


For more information

• ITU-T web site: http://itu.int/ITU-T

• NGN-GSI Global Standard Initiative:http://itu.int/ITU-T/ngn

• ITU-T workshops and seminars:http://itu.int/ITU-T/worksem

• Communication & Information centre:The Lighthouse: http://itu.int/ITU-T/lighthouse

email: [email protected]


Thank you for your attention!Thank you for your attention!


ADDITIONAL SLIDES


Latest ITU-T NGN achievementsRec. N. SG Status Title

Y.2012 13Apvd.09/0

6Functional requirements and architecture of the NGN

Y.2091 ~Apvd.02/0

7Terms and definitions for Next Generation Networks

Y.2111 ~ Apvd.09/0

6Resource and admission control functions in NGN

Y.2171 ~Apvd.09/0

6Admission control priority levels in Next Generation Networks

Y.2021 ~Apvd.09/0

6IMS for Next Generation Networks

Y.2261 ~Apvd.09/0

6PSTN/ISDN evolution to NGN

Y.2031 ~Apvd.09/0

6PSTN/ISDN emulation architecture

Y.2262 ~Apvd.12/0

6PSTN/ISDN emulation & Simulation

Y.2601 ~Apvd.12/0

6Characteristics & Reqts of future Packet based networks

Y.2611 ~Apvd.12/0

6High level architecture of future packet based networks

Y.2271 ~Apvd.09/0

6Call server based PSTN/ISDN emulation

Y.2201 ~TAP->04/07

NGN release 1 requirements

Y.2701 ~TAP->04/07

Security requirements for NGN release 1

M.3343 4 Apvd.01/07

Reqts & analysis for NGN trouble admin across B2B and C2B interface

Q.3900 11 Approved Method of testing and model network architecture for NGN Technical means testing as applied to public telecommunication networks

Y.1542 12 Approved Framework for achieving end-to-end IP performance objectives

Q.1706/Y.2801

19 AR Mobility management requirements for NGN


Cooperation between ITU-T and Universities

• New technologies academic and research communities

• ITU looking to increase involvement from universities and academic institutions

• January 2007 Consultation meeting ITU-T and Universitieshttp://itu.int/ITU-T/cooperation/universities

• Informal discussion group established to discuss ways to increase academia participation in ITU-T activities. To join the group send a request to [email protected]

• Kaleidoscope events: bridging Standardization and Research” ITU-T wishes to organize a series of regular events to bring together academia, research organizations and ITU-T members

• first event 15-16 May 2008 provisionally titled “Innovation in NGN”.


ITU-T Products

Non-normative

AppendicesSupplementsImplementers’ Guides

ManualsReports

NormativeRecommendationsAnnexes

Focus GroupsTechnical SpecificationsTechnical Reports, …

SG-related

Free web download since January 2007!


Approval of Recommendations

Traditional Approval ProcessTraditional Approval Process (TAP)For Recommendations subject to Policy or

Regulatory implicationsInitiated at any SG or WP meeting and completed,

for final approval, at the subsequent SG meeting (WTSA- Res 1)

Alternative Approval ProcessAlternative Approval Process (AAP)For Technical RecommendationsOnce the text is considered to be mature, it is

submitted for AAP at an SG or WP meeting (Rec A.8)

- AAP Approval time = 6-9 Weeks; (Av. 9.5 Weeks) - since January 2001 over 1000 Recs approved- Pre-published Recs. available on ITU-T website, few days to four weeks after approval


Simplified AAP flow chart

LC = Last Call: “ four weeks” SG = Study Group

AR = Additional Review: “ three weeks”

WP = Working Party

Draft Recommendation

input

Comments Received?

SG/WP Meeting

4 weeks

no

yes

3 weeks

ARComment Resolution

RecommendationApproved

Consent

LC

84.6% approved directly after LC, 12.6% approved after going through AR1.8% went back to SG meeting

SG

international telecommunication union global standards role in strategic planning for next...

Documents

secretariat of itu

itut activities

itut product

itut participants

arshey odedra itut sg

asia pacific region

arshey odedra itut whats

new delhi