1. Chae-Sub, LEE Chairman of FG NGN
NGN in ITU-T
Chae-Sub, LEE
Chairman of FG NGN

2. Why NGN ? NGN Standardization Key Features Future Issues Conclusion
Contents
Why NGN ?
NGN Standardization
Key Features
Future Issues
Conclusion

3. Packet based Environments
1. Why NGN ?
Packet based Environments
Expected Future Transition Trend : End-End Packets
Past : Seper. of Voice & Data Transp.
Circuit Switch.
Access Capa.
Transp. Capa.
Packet Switch.
Present : Sep. of V & D Access
xDSL / FTTx
Circuit Switch.
Access Capa.
Transp. Capa.
Packet Switch.
Near Future : Integration of V & D Transport
VoIP / VToA
Circuit Switch.
Access Capa.
Transp. Capa.
Packet Switch.
Future : Integration of V & D Access and Transp.
Packet Switch.
Transp. Capa.
Access Capa.

4. Separation btw. Services and Transport
1. Why NGN ?
Separation btw. Services and Transport
Key Feature of IP : Anything over IP, IP over Everything
Most of Services using IP as their connection platform
Most of Networks supporting transport of IP packet
IP plays a key role to separate Services with Transport
Transport
Services
Telephone Services
Data Services (WWW, , etc)
Video Services (TV, movie, etc)
ACCESS
CORE
API

5. Impacts to Policy and Regulation base
1. Why NGN ?
Impacts to Policy and Regulation base
NGN provide a platform separating Services with Transport
Politics and Regulation environment would be impacted with this
Current Vertical environment would be changed to Horizontal env.
Video
NGN
Voice
Internet
IP (Future Packet ?) Platform
xDSL/Optic based Fixed-Mobile MM
Pol.
Reg.
Pol. X
Reg. x
New PolicyRegulation
Environment (Horizontal)
Service-based Pol./Reg.
Phone
PSTN
Internet
IP-Net
M-Ph
Mobile
Pol. A
Reg. a
Current PolicyRegulation
Environment (Vertical)
Pol. B
Reg. b
Pol. C
Reg. c
Resource-based Pol./Reg.

6. NGN triggering Convergence
1. Why NGN ?
NGN triggering Convergence
Broadcast.
Telecom A B
Sep. Reg. Authority
Stable Bus. Structure
Stable Tech. Infras.
Voice
Data
Video
Network
Broadca.
Services
Start
Convg.
Telecom. mixed with Broadcast. A B
Comp. btw. Reg. Aut.
Comp. btw. Bus. Play.
Comp. btw. Tech. Inf.
Sep. defini. (each side)
Exten. each Bus. area
Exten. of Tech. capa.
Voice
Data
Video
Telecom
Network
Broadca.
Services
A·B Convg.
Integ. Reg. Auth.
Confirmed Bus. Area
Stable Tech. Infras.
Convg.
Tele-Broadcast.
* 3M : Multimedia, Multiparty, Multicasting
Contents
NGN
3 M *
Services

7. NGN Standardization ITU-T : NGN Project 2004 SG 2 SG 9 SG 12 SG 16WS
(01 ~ 03)
ITU-T : NGN Project 2004
(2001 ~ 2004)
SG 2
SG 9
SG 12
SG 16
SG 17
3GPP/2
xDSL Forum
ATIS
ETSI
TTA
TTC
CCSA
ITU-T FG NGN (’04.6 ~ ’05. 5)
SG 4
SG 11
SG 13
SG 15
ITU-T JRG-NGN
( ~ ) Q1 Q5
Q10
Q16 Q6

8. NGN 2004 Project A new ITU Project on NGN : SG13, Nov. 2002
2. NGN Standardization
NGN 2004 Project
A new ITU Project on NGN : SG13, Nov. 2002
Project description document has been prepared ( )
Fundamental characteristics for defining NGN
Packet-based transfer
Separation of control functions for bearer - call/session – service
Decoupling of services and network, provision of open I/F
Wide range of services (RT/ streaming/ non-RT/ multimedia)
BB capabilities with e2e transparency, incl. AN utilization
Interworking with legacy networks
Generalized mobility
Unfettered access from users to competing SPs and services

9. 2. NGN Standardization
JRG on NGN
ITU-T SG 13 launched JRG-NGN at 1st August 2003 : 3 Meetings
Joint Special Rapporteur Group Activity within SG 13
Focus on “Foundational Documentation of NGN” until June. 2004
Draft Recommendations in AAP
Y.NGN-Overview (Y.2001)
Overview of the NGN
Y.NGN-GRM (Y.2011)
General principles and general reference model for NGN
Deliverables for further study 
Deliverables
Title
Y.NGN-GRQ
General requirements for NGN
Y.NGN- FRM
Functional requirements and architecture of the NGN
Y.NGN-CONV
Next Generation Networks – Convergence scenarios
Y.NGN-MOB
Mobility management requirements and architecture for NGN
Y.NGN-CMIP
Customer manageable IP network
Y.NGN-MIG
Migration of networks to NGN
Y.PSTN-NGN
PSTN migration to NGN

10. JRG on NGN Deliverables on QoS for further study Deliverables Title
2. NGN Standardization
JRG on NGN
Deliverables on QoS for further study 
Deliverables
Title
Y.NGN-QoS
General aspects of QoS and network performance in the NGN
Y.e2eqos.1
Requirements and framework for end-to-end QoS architecture for NGN
Y.e2eqos.2
An end-to-end QoS architecture based on centralized resource control for IP networks supporting NGN services
Y.123.qos
A QOS ARCHITECTURE FOR ETHERNET-BASED IP ACCESS NETWORK
Y.ipaqos
A QoS Framework for IP based access networks
Y.NGN-NHNperf
Network performance of hybrid networks in NGN

11. NGN Focus Group ITU-T Director launched NGN Focus Group at June 2004
2. NGN Standardization
NGN Focus Group
ITU-T Director launched NGN Focus Group at June 2004
Almost every two month meeting : 6, 7, 9, 11/2004 and 2, 4, 6/2005
Functional & Nomadicity Architecture (base on IMS & non-IMS)
QoS (include the xDSL Access)
Security Capability (inc. Authentication)
NGN Control and Signaling Capability
Evolution from CGN to NGN WG
Area
Deliverables
WG 1
SR (Service Requirements)
NGN Scope, Releases 1 / General Requirements, Servie and Capability, Mobility Services and Capabilities
WG 2
FAM (Functional Architecture, and Mobility)
Req. and Architecture, Functional Req. for NGN Mobility, Functional Req. for Soft Router
WG 3
QoS (Quality of Services)
TR-123.qos, TR-msnniqos, TR-NGN.qos, TR-NGN.NHNperf, TR-e2eqos.1, TR-enet, TR-atmipa, TR-racs, TR-ipaqos
WG 4
CSC (Control & Signalling)
TRQ.IP QoS.SIG.CS1
WG 5
SeC (Security Capability)
NGN Security Framework
WG 6
Evol (Evolution)
Evolution of Networks to NGN, PSTN evolution to NGN
WG7
FPBN (Future Packet-based Network)
Future Packet Network requirements

12. NGN Focus Group Deliverables on Service Requirements and Architecture
2. NGN Standardization
NGN Focus Group
Deliverables on Service Requirements and Architecture  WG
Title
Current Draft
Target
Date
Release
Status 1
NGN Scope
FGNGN-OD-00037
1Q05 D
Services & Capabilities
FGNGN-OD-00038
Mobility Services & Capabilities
TBD P
NGN Release 1 general requirements
FGNGN-OD-00036
2Q05
NGN general requirements (release-independent requirements) RI
NGN general services and capabilities (release independent) 2
Requirements & Architecture for NGN
FGNGN-OD-00035
Functional Requirements for NGN Mobility
FGNGN-OD-00042
Functional Requirement for Soft Router
FGNGN-OD-00043
Customer Manageable IP Network
FGNGN-OD-00044

13. NGN Focus Group Deliverables on Quality of Services
2. NGN Standardization
NGN Focus Group
Deliverables on Quality of Services  3
A QoS control architecture for Ethernet-based IP access networks (TR-123.qos)
FGNGN-OD-00010
Feb. ’05 1 D
Multi Service Provider NNI for IP QoS (TR-msnniqos)
FGNGN-OD-00027
Feb. ‘05
General aspects of QoS and network performance in NGN (TR-NGN.QoS)
FGNGN-OD-00045 RI
Network performance of non-homogeneous networks in NGN (TR-NGN.NHNperf.).
FGNGN-OD-00025
Requirements and framework for end-to-end QoS in NGN (TR-e2eqos.1)
FGNGN-OD-00032
July ‘05
A QoS architecture for Ethernet networks (TR-enet)
FGNGN-OD-00026
A QoS control architecture for ATM-based IP access networks (TR-atmipa)
TBD P
Resource and admission control sub-system (TR-racs)
FGNGN-OD-00031
A QoS Framework for IP-based access networks (TR-ipaqos)
FGNGN-OD-00033
Performance measurement and management for NGN (TR-pmm)
FGNGN-OD-00024
May ‘05

14. 2. NGN Standardization
NGN Focus Group
Deliverables on Signaling, Security, Migration and Future  4
TRQ.IP QoS.SIG.CS1
FGNGN-OD-00030
TBD D 5
NGN Security Framework
FGNGN-OD-00034 6
Evolution of Networks to NGN
FGNGN-OD-00039
1Q05 1
PSTN Evolution to NGN
FGNGN-OD-00040 7
Problem Statement
FGNGN-OD-00028
4Q04
Requirements
FGNGN-OD-00029
2Q05
High Level Architecture
3Q05 P
Candidate Technologies

15. Definition & Features of NGN
3. Key Features
Definition & Features of NGN
Definition
of NGN
(Draft
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 offers unrestricted access by users to different service providers.
It supports generalized mobility which will allow consistent and
ubiquitous provision of services to users.
Target Standards Area
Generalized Mobility
Convergence btw. Fixed & Mobile
Unrestricted Access
Open Access I/F
Separation Services with Transport
Architecture and Open API
QoS-enabled Transport
Multiple-Broadband
Manageable Broadband

16. Functional Architecture Model
3. Key Features
Functional Architecture Model
KT is covering the wired and wireless areas with its broadband access network such as xDSL, Ethernet, W-LAN, and others. We are also preparing to build other networks such as FTTH, as well as 2.3GHz wireless Portable Internet.
There are many types of terminals, such as desktop PC, laptop, image phone, PDA, and others, that will benefit from these access networks.
If Broadband wired and wireless access networks are connected to a backbone network, and the services offered through those access networks from various terminals are converged and inter-operated, we can say that this is a convergence service.
The service offers streaming video, multimedia message, VPN, on-line game, and others in mobile environment.

17. Customer Manageable Capability
3. Key Features
Customer Manageable Capability
Capabilities to support user manageability on IP network.
Users can allocate, configure, control, and manage
the resources of NGN Network elements
KT is covering the wired and wireless areas with its broadband access network such as xDSL, Ethernet, W-LAN, and others. We are also preparing to build other networks such as FTTH, as well as 2.3GHz wireless Portable Internet.
There are many types of terminals, such as desktop PC, laptop, image phone, PDA, and others, that will benefit from these access networks.
If Broadband wired and wireless access networks are connected to a backbone network, and the services offered through those access networks from various terminals are converged and inter-operated, we can say that this is a convergence service.
The service offers streaming video, multimedia message, VPN, on-line game, and others in mobile environment.

18. 3. Key Features
QoS Aspects of NGN
General reference configuration for NGN QoS, NP and QoE
Man-Machine Interface
Network Interface
Network Interface
Man-Machine Interface
User TE
CPN AN CN AN
CPN TE
User
Network Performance for NGN
QoE
QoE
Quality of Service for NGN
Quality of Experience
Quality of Service
Network Performance
User oriented
Provider oriented
User behaviour attribute
Service attribute
Connection/Flow element attribute
Focus on user-expected effects
Focus on user-observable effects
Focus on planning, development (design), operations and maintenance
User subject
Between (at) service access points
End-to-end or network elements capabilities

19. Mobility Aspects of NGN
3. Key Features
Mobility Aspects of NGN
Mobility
Service
Continuity
Discontinuity
Seamless
Handover
Roaming
Portability
Intra-AN Mobility
Inter-AN Mobility
Inter-TE Mobility
Inter-CN Mobility

20. Evolution Aspects of NGN
3. Key Features
Evolution Aspects of NGN
4 Scenarios for PSTN evolution to NGN
3rd Scenario
4th Scenario

21. Standards for Near Generation, not Next
4. Future Issues
Standards for Near Generation, not Next
NGN stands for Next Generation, but targeted for Near Generation
NGN could be value added framework for all players :
Users, Operators, Providers and Regulators etc.
NGN could be evolved from Current Generation Network
NGN could be basement for making convergence world
(real Telecommunication World)
NGN Standards could be Globalize rather than Localize
boosting global village and shorten digital divide
ITU-T could be centre of NGN standards
CGN
QOS
Mobility
TDM based
Network
Packet based
Near GN
Fixed
Mobile
Conv.
Access
Broadcasting Net. BB
X-casting MM
Packet
Based
Tele-Broad
conv.
Network
Next GN
Fixed
Mobile
Conv.
Access
Mobile
Access
Packet based
Network
Fixed
Access
TDM based
Network
Broadcasting Net.

22. Future Issues of NGN Standardizations
NGN could be infrastructure for Broadband Services/Applications
NGN could be framework for “Convergence” : F↔M T↔B
NGN - Convergence Model
IMS
Beyond IMS
NGN
Release 1
Release 2
Release 3
Recommendations &
Technical Reports
Rec. Y.NGN-FRM
Rec. Y.NGN-CMIP
TR. 123.qos
TR. NGN.qos
Rec. Y.NGN-MOB
TR. atmipa
TR. enet
TR. e2e.qos.1
FG NGN Standards
Video Services (TV, movie, etc)
Data Services (WWW, , etc)
Telephone Services
Services
API
Transport
ACCESS
CORE
ACCESS
Future Packets (?)
Ethernet or others
xDSL
Optic

23. Development of NGN Releases
4. Future Issues
Development of NGN Releases
Target dates : Realization of NGN
Services and Capabilities (include Network and Control Capability)
Architecture and their components
Specifications for Interfaces, etc.
(?)
FPS Based (?)
I/F 1
End of 2005 (TBD)
Services & Capabilities : S&C 1
Functional Arc. & Spec. : FA&S 1
IW and Interconnection : IAI 1
Migration : MIG 1
I/F 2
End of 2006 (TBD)
S&C 2 = S&C 1+ A2
FA&S 2 = FA&S 1 + B2
IAI 2 = IAI 1 + C2
MIG 2 = MIG 1 + D2
NGN
Release 3
NGN
Release 2
NGN Release 1

24. Simplified Realization Model of NGN
5. Conclusion
Simplified Realization Model of NGN
Content-based Delivery Network Infrastructure
Service Broker Infrastructure
Information Broker Infrastructure
Convergence
Integration
Mobility (Uniq. ID)
Terminals /
Appliances
Service
Providers
Users
Program
Providers
NGN Infrastructure S E R V I C B K I N F B R O K E

25. NGN : Nothing new, but upgrading, adding Value
5. Conclusion
NGN : Nothing new, but upgrading, adding Value
Up-grading
Current
Infrastructure
Current Generation-Beach
Adding
Value
Next Generation-Water Park