1. ITU-T Next Generation Networks
ITU Telecommunication Standardization Bureau
Version November 2006

2. OUTLINE ITU-T NGN Milestones JRG-NGN 2003 FG-NGN 2004-2005
NGN-GSI 2006
Overall Coordination
Latest ITU-T NGN achievements

3. 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.)
NGN also aims to tackle important concerns raised from the use of current IP-based services: (i.e. QoS and security)

4. ITU-T NGN Milestones Present / Future Past 2003 JRG-NGN Y.2001 Y. 2011
11 draft Recs
FG-NGN
30 documents
collected in the
Proceeding book
2006
NGN-GSI
..on going..
Many Recs.
approved
in various SGs
Present / Future
Past

5. ITU-T NGN Milestones Present / Future Past 2003 JRG-NGN Y.2001 Y. 2011
11 draft Recs
FG-NGN
30 documents
collected in the
Proceeding book
2006
NGN-GSI
..on going..
Many Recs.
approved
in various SGs
Present / Future
Past

6. JRG-NGN “Joint Rapporteur Group on NGN”
Formed by experts from across all relevant Questions of Study Group 13
Key topics:
NGN requirements, the general reference model, functional requirements and architecture of the NGN, evolution to NGN
Outputs:
SG 13 approved two fundamental Recommendations:
Y.2001: “General overview of NGN”
Y. 2011: “General principles and general reference model for next generation networks”
and transferred the remaining work to FG-NGN (11 draft texts)

7. Definition of NGN: Y.2001 (1/2)
ITU-T SG 13: Rec. Y.2001
A NGN is 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.

8. Definition of NGN: Y.2001 (2/2)
NGN is characterized by the following fundamental aspects:
Packet-based transfer;
Separation of control functions among bearer capabilities, call/session, and application/ service;
Independence of service-related functions from underlying transport technologies;
Broadband capabilities with end-to-end QoS and transparency;
Unrestricted access by users to different service providers;
Generalized mobility;
Converged services between fixed/mobile;
Interworking with legacy networks via open interfaces;
Support for a wide range of services, applications and mechanisms based on service building blocks (including real time/ streaming/ non-real time services and multi-media)
Unified service characteristics for the same service as perceived by the user;
Compliant with all regulatory requirements (e.g. emergency, privacy etc.)
Decoupling of service provision from network, and provision of open interfaces;
A variety of identification schemes which can be resolved to IP addresses for the purposes of routing in IP networks

9. ITU-T NGN Milestones Present / Future Past 2003 JRG-NGN Y.2001 Y. 2011
11 draft Recs
FG-NGN
30 documents
collected in the
Proceeding book
2006
NGN-GSI
..on going..
Many Recs.
approved
in various SGs
Present / Future
Past

10. Next-Generation Networks
FG-NGN
ITU-T Focus Group on
Next-Generation Networks
Lifetime
1,5 years
Established in May 2004 in order to continue and accelerate NGN activities initiated by the JRG-NGN
FG-NGN addressed the urgent need for an initial suite of global standards for NGN.
FG-NGN’s mandate was extended through November 2005 as it was clearly attracting significant participation and input from the membership.

11. 2004-05 FG-NGN Preserving Continuity
FG-NGN inherited ~ 11 draft Recs from JRG-NGN
ITU-T Study Group 13 “Next Generation Networks” became parent group of FG-NGN (per decisions of WTSA-04)
Highly flexible means to progress technical work
Face-to-face meeting every two months (9 meetings in 18 months)
Open to any individual from a country which is an ITU member
more than 1,200 input documents and 1,400 participants
Main output is: a two-part Proceedings book (collection of 30 documents: release independent, release 1 and post release 1 deliverables)
Partners: xDSL Forum, ETSI TISPAN, ATIS, MFA, Metro Ethernet Forum, OIF, ITU-D Study Group 2, TTA, TTC and CCSA.

12. 2004-05 FG-NGN Key topics addressed by FG-NGN:
Services requirements and capabilities
Functional architecture and mobility
Quality of service (QoS)
Control aspects (including signalling)
Security capability (including authentication)
Migration of current networks into NGN (e.g. PSTN, ISDN etc.)
Future packet based network requirements
Work progressed in 7 Working Groups

13. FG-NGN Working Groups Title Mandate SR FAM QoS CSC SeC Evol FPBN WG
(Service Requirements)
Development of scope, service requirements and capabilities according to Release Plan
WG 2
FAM
(Functional Architecture, and Mobility)
Development of Functional Architecture in general and specific instance views including Mobility aspects
WG 3
QoS
(Quality of Service)
Development of End-End QoS releated deliverables including network performance aspects
WG 4
CSC
(Control & Signalling)
Development of control related standards
WG 5
SeC
(Security Capability)
Development of Security Framework under NGN environment
WG 6
Evol
(Evolution)
Evolution of current networks into NGN (e.g. PSTN/ISDN)
WG7
FPBN
(Future Packet-based Bearer Network)
Identify current packet based network problems and development of Future Packet Network requirements

14. FG-NGN Deliverables
FG-NGN final output was a total of 30 documents collected in the NGN FG Proceeding book
It is freely available at:
The deliverables cover the seven working areas previously described, and has been transferred to the relevant Study Groups for their further consideration.
Deliverables are classified by Release concept

15. FG-NGN Release Concept
A Release is a method of prioritizing by identifying a set of services to be addressed in a certain time frame
Define service requirements and capabilities in NGN
Work progressed by the FG to be submitted to the appropriate ITU-T Study Group(s)
Possibility to develop more generic (release independent) capabilities, the collation of services, requirements and issues for future releases.
Successor groups to work starting from the scope defined by FG in Release 1 [Suppl. 1 Y.2000-series: “NGN release 1 scope”]
[Approved July 2006]

16. Coverage of FG-NGN Release 1
Resource and Admission
Control Functions
RACF
Network Access
Attachment Functions
NAAF
Other Multimedia
Components …
Streaming Services
Application Functions
Core transport
Functions
Access Transport
NGN
Terminals
Customer
Networks
User
Profile
Other Networks
Legacy GW
PSTN / ISDN Emulation
IP Multimedia
Component
NNI
Transport Stratum
Service Stratum
UNI
Edge Funtions
Access
Service
and
Control
Customer and
Terminal Funct.
QoS
Aspects and one part of Control aspect
(IP
signaling Requirement)
Release 1 coverage

17. ITU-T NGN Milestones Present / Future Past 2006 NGN-GSI ..on going..
Many Recs.
approved
in various SGs
2003
JRG-NGN
Y.2001
Y. 2011
11 draft Recs
FG-NGN
30 documents
collected in the
Proceeding book
Present / Future
Past

18. NGN Industry event Global Standards Initiative
When and where: 18 November 2005, London, UK
Who: ITU together with sponsors (BT, Cisco, Lucent Technologies, Motorola, Nortel and Siemens)
marked a milestone in ITU's work on NGN.
What: 1) Completion of FG-NGN work and overview of work so far:
2) Future direction for NGN: creation of NGN-GSI
FG-NGN
Release 1
What: ITU together with sponsors BT, Cisco, Lucent Technologies, Motorola, Nortel and Siemens held a one day event to mark a new milestone in ITU's work on next-generation networks (NGN). The event presented an overview of NGN work so far, details on future direction and some of the business drivers for NGN. In addition to announcing this completion of work on the Release 1 standards for NGN by ITU-T's Focus Group on Next-Generation Networks (FGNGN), the event communicated the next phase of NGN work to be progressed under the banner of the NGN Global Standards Initiative (NGN-GSI). Morning sessions focused on technical aspects of the NGN work, while the afternoon was devoted to market/business drivers.  Why: Operators from around the globe are implementing NGN strategies and plan to invest billions of dollars in the eventual rollout of new packet-based networks. Their involvement in global standards stimulates innovation and superior technology; enables interoperability enabling multi-vendor product offering; protects current and future investment.  The operators, systems vendors and governments that have driven this standardization work see NGN as delivering substantial cost savings due to the economies of scope inherent in a single converged network. They believe that standards will facilitate an open market for systems, lowering costs and allowing a mix and match approach to implementation, while also allowing interoperability on a global scale. NGN will see consumers benefit from innovative new services, greater control and personalisation, ease of migration between services as well as offering continuity for existing services.  Who: The event aimed at those involved in product planning and service creation, whether from systems vendors or service providers. Typically that will mean systems designers or product implementers from systems vendors and those involved in service development from service providers. 
Global
Standards
Initiative

19. 2006 NGN-GSI Why NGN-GSI What is NGN-GSI Preserving Continuity
Maintain and develop the FG-NGN momentum
What is NGN-GSI
Events (or Environments) where experts from various SGs, and “invited” non members, meet together `
Preserving Continuity
NGN-GSI inherited FG-NGN output documents
ITU-T Study Group 13 “Next Generation Networks” is responsible for leading the NGN work, overall management of the NGN ‘project’ and coordination of the NGN-GSI activities.
NGN-GSI Events
Geneva, Switzerland, January 2006
Kobe, Japan, April 2006
Geneva, Switzerland, July 2006
Geneva, Switzerland, (24th October - 3rd November) 2006
Planned meeting in 2007: (8-12 January, Beijing, China; April, Geneva, Switzerland;)

20. FG-NGN and NGN-GSI Possible Roadmap

21. Main SGs addressing NGN
SG 13 “Lead study group for NGN”
Functional requirements, services and architectures
SG 11 Network signaling requirements, control functional architectures and protocols in emerging NGN environments
SG 19 Fixed and Mobile Convergence (FMC) and Mobility Management
Almost ALL Study Groups include NGN aspects
SG 12 for Performance and quality of service, SG 15 for broadband access and transport, SG 16 for multimedia terminals and applications, SG 4 for NGN Management, SG 2 for numbering naming and addressing, SG 17 for NGN Security, SG 9 for cable and television networks etc.

22. Other Groups NGN-MFG Since 2004: NGN Management Focus Group (NGNMFG)
Contribute to the specification of NGN management
NGNMFG info
Established under the parentship of SG 4 (2004)
Confirmed by SG 4 in February 2005, September 2005 and May 2006
Expected to complete activities in early 2007
Report to SG 4
NGNMFG activities contribute to the ITU-T NGN-GSI
Objective and tasks
Develop set of interoperable specifications as solution for the management of NGN services and networks.
Develop NGN Management Specification Roadmap for Release 1

23. Other Groups OCAF-FG
Since 2004: Open Communications Architecture Forum
(OCAF) Focus Group
OCAF-FG info
Established under SG 13 by ITU-T and OCAF in May 2004
Organized under three Work Groups:
the Solution Work Group
the Carrier Grade Open Environment (CGOE) Work Group
the CGOE component Work Group 
OCAF-FG activities contribute to ITU-T NGN-GSI
Objective and tasks
agree on specifications for a set of components for a new carrier grade open platforms that will accelerate deployment of NGN infrastructure and services
deliverables will be in the form of Technical Specifications and Technical Reports and may form input to the ITU-T SGs work

24. 2006 NGN-GSI Co-located Joint Activity : SG 11, 13, 19 + others
Coverage
Release 2 Services and Capabilities
Functional Architectures and Requirements
Mobility Management and FMC
IPv6 application into NGN
End-to-End QoS
NGN Signaling with Resource Admission Control
Migration and Interworking aspects (inc. IWF)
NGN Security
Home Networking (JCA-HN established March 2005)
Network aspects of Identification systems (inc. RFID)
(JCA-NID established July 2006)
IPTV (IPTV-FG established on April 2006)
Others…

25. Example of NGN Realization
Chae-Sub, LEE - Chairman of FG NGN - NGN Technical Workshop 14 ~ 15 March 2005, Jeju, Korea

26. NGN example of service domains (Appendix I Figure I.5 of Y.2012)

27. OUTLINE Overall Coordination ITU-T NGN Milestones
JRG-NGN
FG-NGN
NGN-GSI
Overall Coordination
Latest ITU-T NGN achievements

28. Overall Coordination (1/4)
Since 2004:
Joint Coordination Activity (NGN-JCA)
September 2006:
NGN-Project Management Tool (database)
November 2005:
NGN-GSI TSR (Technical and Strategic Review)

29. Overall Coordination (2/4)
Since Joint Coordination Activity (NGN-JCA)
coordinates NGN activities across all ITU-T Study Groups and
other SDOs
Set up by WTSA-04
Purpose to augment the Lead study group role of Study Group 13 for NGN and to coordinate among various Study Groups (2, 4, 11, 12, 13, 15, 16, 17, 19) involved in NGN studies  
1st meeting: Dec 2004
6th meeting: 25 July 2006 agreed to coordinate the development of
a handbook: “General guidelines for testing of the NGN”
Next meeting: April 2007 (during the NGN-GSI event)
Handbook on General Guidelines for testing of the NGN
Proposed Scope
The ultimate aim of NGN standardisation is to enable interoperability on a global scale. Well-defined and unambiguous Recommendations, together with appropriate testing, are crucial elements in achieving that goal.
This Handbook provides general guidelines on how interoperability testing could be carried out, noting that NGN, per se, may include convergence of many network types and delivering a variety of "e-services" that
Citizens can enjoy with confidence.
It should be emphasised that this Handbook does not provide “conformance and/or conformance testing” requirements.
Proposed Objectives:
The NGN standardisation covers the work of many ITU-T SGs and therefore presents a challenge to enable interoperability on a global scale. Well-defined and unambiguous Recommendations, together with appropriate testing, are crucial elements in achieving that goal. Ultimately, it is the protocol Recommendations that form the basis for interoperability testing.
The primary objective of this Handbook should be to assist in removing the Technical Barriers to Trade (TBT) as defined by WTO and should provide the basis for testing methodology that conforms with the WTO Code of Good Practice, contained in Annex 3 of the WTO TBT Agreement that provides disciplines, including those related to transparency, for the preparation, adoption and application of standards by all central governmental, local government, non-governmental and regional standardizing bodies.
Modelling and simulation techniques may be used to show that a standard is correct and consistent and that it really describes the functionality it is supposed to standardise.
Therefore, this Handbook should provide Guidelines on how the protocol Recommendations should be tested so as to provide a level of confidence that different implementations of the NGN Recommendations will provide NGN services and applications across different networks.
The Handbook should also provide a brief description of the model architectures and simulation tools necessary for carrying out the testing with further references to the ITU Recommendations providing further details.

30. Overall Coordination (3/4)
To help SG 13 (particularly Q.1/13) in the overall management of the NGN ‘project’
September 2006: Implemented NGN Project Management Tool (database)
Web-based database
Provide consolidated information (acting as a repository) on NGN standardization work in ITU-T and other relevant SDOs.
Key features:
on line
ability to see the latest versions of documents.
ability to sort out work items by function or entity

31. Overall Coordination (4/4)
To reinforce the role of the NGN-JCA and ensure visibility
November 2005 established NGN-GSI TSR
NGN-GSI Technical and Strategic Review
ensure technical coherence to NGN studies
provide inputs to NGN-GSI for strategic and technical co-ordination to NGN work
Each NGN-GSI event will comprise TSR meeting(s), which will report to
NGN-JCA any issues requiring guidance or recommendations for action
(e.g. concerning work allocation)

32. Latest ITU-T NGN achievements
OUTLINE
ITU-T NGN Milestones
JRG-NGN
FG-NGN
NGN-GSI
Overall Coordination
Latest ITU-T NGN achievements

33. Latest ITU-T NGN achievements (November 2006)
Rec. N. SG
Status
Title
Y.2012 13 LC
Functional requirements and architecture of the NGN
Y.2091 ~
Consent
Terms and definitions for Next Generation Networks
Y.2111
Approved
Resource and admission control functions in NGN
Y.2171
Admission control priority levels in Next Generation Networks
Y.2021
IMS for Next Generation Networks
Y.2261
PSTN/ISDN evolution to NGN
Y.2031
PSTN/ISDN emulation architecture
Y.2271
Call server based PSTN/ISDN emulation
Y.2201
TAP
NGN release 1 requirements
Y.2701
Security requirements for NGN release 1
Q.1706/Y.2801 19
Mobility management requirements for NGN
Q.3900 11
Method of testing and model network architecture for NGN Technical means testing as applied to public telecommunication networks
M.3343 4
Requirements and analysis for NGN trouble administration across B2B and C2B interface
Y.1542 12
Framework for achieving end-to-end IP performance objectives  

34. NGN Recommendations
Y.2000–Y Frameworks and functional architecture models
Y.2001 General overview of NGN
Y.2011 General principles and general reference model for next generation networks
Y.2012 (Y.NGN-FRA)
Y.2021 (Y.IFN)
Y.2031 (Y.PIEA)
Y.2091 (Y.term)
Y.2100–Y Quality of Service and performance
Y.2111 (Y.RACF)
Y.2171 (Y.CACPriority)
Y.2200–Y Service aspects: Service capabilities and service architecture
Y.2201 (Y.NGN-R1-Reqts)
Y.2250–Y Service aspects: Interoperability of services and networks in NGN
Y.2261 (Y.piev)
Y.2262 (Y.emsim)
Y.2271 (Y.csem)

35. NGN Recommendations Y.2300–Y.2399 - Numbering, naming and addressing
Y.2400–Y Network management
Y.2401 Principles for the Management of the Next Generation Networks
Y.2500–Y Network control architectures and protocols
Y.2600–Y Reserved
Y.2601 (Y.FPBN-req)
Y.2611 (Y.FPBN-arch)
Y.2700–Y.2799 – Security
Y.2701 (Y.NGN Security)
Y.2800–Y Generalized mobility
Y.2801 = Q.1706
Y.2900-Y Reserved
scope: supplement 1 to Y.2000-series
S/BC: supplement 1 to Y.2012

36. SG 13: Latest Results (Oct 2006)
ITU-T Recs Q
Status
Title
Y.2012 3
(AAP) LC
Functional requirements and architecture of the NGN
Y.2021
Approved
IMS for Next Generation Networks
Y.2031
PSTN/ISDN emulation architecture
Y.2171 4
Admission control priority levels in Next Generation Networks
Y.2111
Resource and admission control functions in Next Generation Networks
Y.2261 7
PSTN/ISDN evolution to NGN
Y.2271
Call server based PSTN/ISDN emulation
Y.2091 11
Consent
Terms and definitions for Next Generation Networks
Suppl 1
Y.2000-series 1
NGN release 1 scope
Session/border control (S/BC) functions
[Y.2012: “Functional requirements and architecture of the NGN”]
Y.2201 2
TAP
NGN release 1 requirements
Y.2701 15
Security requirements for NGN release 1

37. SG 11 Latest Result (July 2006)
Q.3900: the first of a series of Recs on NGN testing
ITU-T
Rec. No. Q
Status
Title
Q.3900 8
Approved
Method of testing and model network architecture for
NGN technical means testing as applied to public
telecommunication networks
Reason:
NGN equipment testing become of primary importance for
compatibility testing of various vendors’ NGN equipment
compatibility testing of new services with the existing ones
Scope:
According to ITU-T Recs Y.2001 and Y.2011, defines a network structure to which the testing requirements can be related and gives the basic principle of NGN testing and technical methodology

38. * Jointly developed with SG13-Q6
SG 19 Latest Result (Nov 2006)
ITU-T
Rec. No. Q
Status
Title
Q.1706/
Y.2801* 2
Approved
Mobility management requirements for NGN
* Jointly developed with SG13-Q6
SG 19 role in NGN
Will conduct the approval process for deliverables for the joint activities of Q.2/19, Q.5/19 and Q.6/13 in the area of:
Mobility management
Fixed-mobile convergence (FMC)

39. SG 4 Latest Result (June 2006)
ITU-T
Rec. No. Q
Status
Title
M.3343 4
(AAP)
Consent
Requirements and analysis for NGN trouble
administration across B2B and C2B interface
ITU-T M.3343
This Recommendation contains the requirements and analysis for Trouble Administration functions for the Business to Business and Customer to Business interfaces in support of NGN
The requirements and analysis are provided using the TMN* interface specification methodology described in ITU-T Recommendation M.3020
Reminder: ITU-T M.3060/Y.2401: Principles for the management of Next Generation Networks
TMN* = Telecommunications Management Network

40. SG 12 Latest Result (June 2006)
ITU-T
Rec. No. Q
Status
Title
Y.1542 8
Approved
Framework for achieving end-to-end IP
performance objectives
Key QoS Challenge Tackled
New Rec. Y.1542 gives the groundwork for service providers to realize end-to-end network performance for services like VoIP and IPTV.
With Y.1542, NGN will be able to provide QoS across multiple network operators, and unusual topologies and distances.
Y.1542 is complementary to Y.1540 and Y.1541 which give network performance objectives for IP-based services
Y.1542 gives guidance to accelerate the planning, deployment and management of interoperable networks and systems

41. Next Direction of NGN Standardization
Construction for Business/Application
(Project oriented approach)
FMC
RFID
IPTV
Others
Managed IP
Implementable Standards
- For Converged Infrastructure
- For Migration
Converged Broadband
ITU-T
JCA-NID
ITU-T
IPTV FG

42. NGN-GSI Contacts
NGN GSI Secretariat: