NGN in ITU-T

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NGN in ITU-T

• Chae-Sub, LEE
• Chairman of FG NGN

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Contents

1. Why NGN ?
2. NGN Standardization
3. Key Features
4. Future Issues
5. Conclusion

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1. Why NGN ?
Packet based Environments
Expected Future Transition Trend End-End Packets
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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

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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.

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1. Why NGN ?
NGN triggering Convergence
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2. NGN Standardization
NGN Standardization
ITU-T NGN Project 2004 (2001 2004)
SG 2
SG 9
SG 12
SG 16
SG 17
SG 15
SG 4
SG 11
SG 13
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NGN 2004 Project
2. NGN Standardization

• A new ITU Project on NGN SG13, Nov. 2002
• Project description document has been
  prepared(http//www.itu.int/ITU-T/studygroups/com
  13/ngn2004/index.html )
• 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

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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
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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
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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
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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 1 D
1 Services Capabilities FGNGN-OD-00038 1Q05 1 D
1 Mobility Services Capabilities TBD 1Q05 1 P
1 NGN Release 1 general requirements FGNGN-OD-00036 2Q05 1 D
1 NGN general requirements (release-independent requirements) TBD 2Q05 RI P
1 NGN general services and capabilities (release independent) TBD 2Q05 RI P
D
2 Requirements Architecture for NGN FGNGN-OD-00035 1Q05 1 D
2 Functional Requirements for NGN Mobility FGNGN-OD-00042 1Q05 1 D
2 Functional Requirement for Soft Router FGNGN-OD-00043 TBD 2 D
2 Customer Manageable IP Network FGNGN-OD-00044 TBD 2 D
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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
3 Multi Service Provider NNI for IP QoS (TR-msnniqos) FGNGN-OD-00027 Feb. 05 1 D
3 General aspects of QoS and network performance in NGN (TR-NGN.QoS) FGNGN-OD-00045 Feb. 05 RI D
3 Network performance of non-homogeneous networks in NGN (TR-NGN.NHNperf.). FGNGN-OD-00025 Feb. 05 RI D
3 Requirements and framework for end-to-end QoS in NGN (TR-e2eqos.1) FGNGN-OD-00032 July 05 1 D
3 A QoS architecture for Ethernet networks (TR-enet) FGNGN-OD-00026 July 05 1 D
3 A QoS control architecture for ATM-based IP access networks (TR-atmipa) TBD July 05 1 P
3 Resource and admission control sub-system (TR-racs) FGNGN-OD-00031 July 05 1 D
3 A QoS Framework for IP-based access networks (TR-ipaqos) FGNGN-OD-00033 July 05 1 D
3 Performance measurement and management for NGN (TR-pmm) FGNGN-OD-00024 May 05 1 D
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2. NGN Standardization
NGN Focus Group
Deliverables on Signaling, Security, Migration
and Future 
4 TRQ.IP QoS.SIG.CS1 FGNGN-OD-00030 TBD TBD D

5 NGN Security Framework FGNGN-OD-00034 TBD TBD D

6 Evolution of Networks to NGN FGNGN-OD-00039 1Q05 1 D
6 PSTN Evolution to NGN FGNGN-OD-00040 1Q05 1 D

7 Problem Statement FGNGN-OD-00028 4Q04 TBD D
7 Requirements FGNGN-OD-00029 2Q05 TBD D
7 High Level Architecture TBD 3Q05 TBD P
7 Candidate Technologies TBD 3Q05 TBD P
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3. Key Features
Definition Features of NGN
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.
Definition of NGN (Draft Rec. Y.2001)
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3. Key Features
Functional Architecture Model
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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

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3. Key Features
QoS Aspects of NGN
General reference configuration for NGN QoS, NP
and QoE
Man-Machine Interface
Man-Machine Interface
Network Interface
Network Interface
TE
TE
User
User
Network Performance for NGN
QoE
QoE
Quality of Service for NGN
Quality of Experience Quality of Service Network Performance
User oriented 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
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3. Key Features
Mobility Aspects of NGN
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3. Key Features
Evolution Aspects of NGN

• 4 Scenarios for PSTN evolution to NGN

3rd Scenario
4th Scenario
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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
Packet based Network
Mobile Access
TDM based Network
Fixed Access
Broadcasting Net.
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4. Future Issues
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
Video Services (TV, movie, etc)
Data Services (WWW, e-mail, etc)
Telephone Services
Services
API
Transport
ACCESS
ACCESS
CORE
Future Packets (?)
Ethernet or others
xDSL
Optic
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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.

NGN Release 1
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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
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5. Conclusion
NGN Nothing new, but upgrading, adding Value
Up-grading Current Infrastructure