International Telecommunication Union NGN in ITUT ChaeSub LEE
International Telecommunication Union NGN in ITU-T Chae-Sub, LEE Chairman of FG NGN Page WTSA 2004. 7 October, Florianopolis Brazil
Contents 1. Why NGN ? 2. NGN Standardization 3. Key Features 4. Future Issues 5. Conclusion 19. 06. 2021 WTSA 2004. 7 October, Florianopolis Brazil 2
1. Why NGN ? Packet based Environments Expected Future Transition Trend : End-End Packets Past : Seper. of Voice & Data Transp. Circuit Switch. Access Capa. Circuit Switch. Transp. Capa. Packet Switch. Transp. Capa. Present : Sep. of V & D Access Circuit Switch. Access Capa. Packet Switch. Access Capa. Circuit Switch. Transp. Capa. Packet Switch. Transp. Capa. x. DSL / FTTx Future : Integration of V & D Access and Transp. Near Future : Integration of V & D Transport Circuit Switch. Access Capa. Packet Switch. Transp. Capa. Packet Switch. Access Capa. Circuit Switch. Transp. Capa. Packet Switch. Transp. Capa. Vo. IP / VTo. A 19. 06. 2021 WTSA 2004. 7 October, Florianopolis Brazil 3
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 Video Services (TV, movie, etc) Data Services (WWW, e-mail, etc) Telephone Services API Transport ACCESS 19. 06. 2021 WTSA 2004. 7 October, Florianopolis Brazil CORE ACCESS 4
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. Pol. A Reg. a Pol. B Reg. b Service-based Pol. /Reg. Pol. C Reg. c Voice Internet Video Phone Internet IP-Net Mobile IP (Future Packet ? ) Platform Pol. X Reg. x x. DSL/Optic based Fixed-Mobile Current Policy Regulation Environment (Vertical) 19. 06. 2021 Pol. Reg. M-Ph NGN PSTN MM Resource-based Pol. /Reg. New Policy Regulation Environment (Horizontal) WTSA 2004. 7 October, Florianopolis Brazil 5
1. Why NGN ? NGN triggering Convergence Telecom. mixed with Broadcast. Voice Data Video Telecom Network Broadca. Network Telecom Services Broadca. Services Contents Video Data Start Convg. Tele-Broadcast. Telecom Network Broadca. Network Telecom Services Broadca. Services Convg. NGN 3 M* Services * 3 M : Multimedia, Multiparty, Multicasting A B • Sep. Reg. Authority • Stable Bus. Structure • Stable Tech. Infras. 19. 06. 2021 A B • Sep. defini. (each side) • Comp. btw. Reg. Aut. • Exten. each Bus. area • Comp. btw. Bus. Play. • Exten. of Tech. capa. • Comp. btw. Tech. Inf. WTSA 2004. 7 October, Florianopolis Brazil A·B Convg. • Integ. Reg. Auth. • Confirmed Bus. Area • Stable Tech. Infras. 6
2. NGN Standardization ITU-T : NGN Project 2004 (2001 ~ 2004) ITU-T NGN WS SG 2 SG 9 SG 4 SG 12 SG 11 (01 ~ 03) 3 GPP/2 SG 16 Q 1 0 Q 5 Q 16 x. DSL Forum SG 15 SG 13 Q 1 SG 17 Q 6 ITU-T JRG-NGN (2003. 9 ~ 2004. 6) ATIS CCS A TTC TTA ETSI ITU-T FG NGN (’ 04. 6 ~ ’ 05. 5) 19. 06. 2021 WTSA 2004. 7 October, Florianopolis Brazil 7
2. NGN Standardization NGN 2004 Project o A new ITU Project on NGN : SG 13, Nov. 2002 o Project description document has been prepared (http: //www. itu. int/ITU-T/studygroups/com 13/ngn 2004/index. html ) o Fundamental characteristics for defining NGN 1. Packet-based transfer 2. Separation of control functions for bearer - call/session – service 3. Decoupling of services and network, provision of open I/F 4. Wide range of services (RT/ streaming/ non-RT/ multimedia) 5. BB capabilities with e 2 e transparency, incl. AN utilization 6. Interworking with legacy networks 7. Generalized mobility 8. Unfettered access from users to competing SPs and services 19. 06. 2021 WTSA 2004. 7 October, Florianopolis Brazil 8
2. NGN Standardization JRG on NGN • ITU-T SG 13 launched JRG-NGN at 1 st 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 19. 06. 2021 WTSA 2004. 7 October, Florianopolis Brazil 9
2. NGN Standardization JRG on NGN Deliverables on Qo. S for further study Deliverables Title Y. NGN-Qo. S General aspects of Qo. S and network performance in the NGN Y. e 2 eqos. 1 Requirements and framework for end-to-end Qo. S architecture for NGN Y. e 2 eqos. 2 An end-to-end Qo. S 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 Qo. S Framework for IP based access networks Y. NGNNHNperf Network performance of hybrid networks in NGN 19. 06. 2021 WTSA 2004. 7 October, Florianopolis Brazil 10
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) • Qo. S (include the x. DSL Access) • Security Capability (inc. Authentication) • NGN Control and Signaling Capability • Evolution from CGN to NGN WG Area Deliverables WG 1 SR (Service Requirements) WG 2 FAM (Functional Architecture, Req. and Architecture, Functional Req. for NGN Mobility, Functional Req. for Soft Router and Mobility) WG 3 Qo. S (Quality of Services) TR-123. qos, TR-msnniqos, TR-NGN. qos, TRNGN. NHNperf, TR-e 2 eqos. 1, TR-enet, TR-atmipa, TRracs, TR-ipaqos WG 4 CSC (Control & Signalling) TRQ. IP Qo. S. SIG. CS 1 WG 5 Se. C (Security Capability) NGN Security Framework WG 6 Evol (Evolution) Evolution of Networks to NGN, PSTN evolution to NGN WG 7 Future Packet Network requirements FPBN (Future Packet-based WTSA 2004. 7 October, Florianopolis Brazil Network) 19. 06. 2021 NGN Scope, Releases 1 / General Requirements, Servie and Capability, Mobility Services and Capabilities 11
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 1 Q 05 1 D 1 Services & Capabilities FGNGN-OD-00038 1 Q 05 1 D 1 Mobility Services & Capabilities TBD 1 Q 05 1 P 1 NGN Release 1 general requirements FGNGN-OD-00036 2 Q 05 1 D 1 NGN general requirements (releaseindependent requirements) TBD 2 Q 05 RI P 1 NGN general services and capabilities (release independent) TBD 2 Q 05 RI P D 2 Requirements & Architecture for NGN FGNGN-OD-00035 1 Q 05 1 D 2 Functional Requirements for NGN Mobility FGNGN-OD-00042 1 Q 05 1 D 2 Functional Requirement for Soft Router FGNGN-OD-00043 2 D 2 Customer Manageable IP Network FGNGN-OD-00044 2 D 19. 06. 2021 WTSA 2004. 7 October, Florianopolis Brazil TBD 12
2. NGN Standardization NGN Focus Group Deliverables on Quality of Services 3 A Qo. S 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 Qo. S (TRmsnniqos) FGNGN-OD-00027 Feb. ‘ 05 1 D 3 General aspects of Qo. S and network performance in NGN (TR-NGN. Qo. S) 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 Qo. S in NGN (TR-e 2 eqos. 1) FGNGN-OD-00032 July ‘ 05 1 D 3 A Qo. S architecture for Ethernet networks (TRenet) FGNGN-OD-00026 July ‘ 05 1 D 3 A Qo. S control architecture for ATM-based IP access networks (TR-atmipa) TBD July ‘ 05 1 P 3 Resource and admission control sub-system (TRracs) FGNGN-OD-00031 July ‘ 05 1 D 3 A Qo. S 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 19. 06. 2021 WTSA 2004. 7 October, Florianopolis Brazil 13
2. NGN Standardization NGN Focus Group Deliverables on Signaling, Security, Migration and Future 4 TRQ. IP Qo. S. SIG. CS 1 FGNGN-OD-00030 TBD D 5 NGN Security Framework FGNGN-OD-00034 TBD D 6 Evolution of Networks to NGN FGNGN-OD-00039 1 Q 05 1 D 6 PSTN Evolution to NGN FGNGN-OD-00040 1 Q 05 1 D 7 Problem Statement FGNGN-OD-00028 4 Q 04 TBD D 7 Requirements FGNGN-OD-00029 2 Q 05 TBD D 7 High Level Architecture TBD 3 Q 05 TBD P 7 Candidate Technologies TBD 3 Q 05 TBD P 19. 06. 2021 WTSA 2004. 7 October, Florianopolis Brazil 14
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, Qo. S-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 Qo. S-enabled Transport Multiple-Broadband 19. 06. 2021 Manageable Broadband WTSA 2004. 7 October, Florianopolis Brazil 15
3. Key Features Functional Architecture Model 19. 06. 2021 WTSA 2004. 7 October, Florianopolis Brazil 16
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 19. 06. 2021 WTSA 2004. 7 October, Florianopolis Brazil 17
3. Key Features Qo. S Aspects of NGN General reference configuration for NGN Qo. S, NP and Qo. E Man-Machine Network Interface TE User Network Man-Machine Interface CPN AN CPN TE User Network Performance for NGN Qo. E Quality of Service for NGN Quality of Experience Quality of Service User oriented Qo. E Network Performance Provider oriented User behaviour attribute Service attribute Connection/Flow element attribute Focus on userexpected effects Focus on userobservable effects Focus on planning, development (design), operations and maintenance User subject Between (at) service access points End-to-end or network elements capabilities 19. 06. 2021 WTSA 2004. 7 October, Florianopolis Brazil 18
3. Key Features Mobility Aspects of NGN Mobility Service Continuity Seamless Handover Service Discontinuity Handover Roaming Portability Intra-AN Mobility Inter-CN Mobility Inter-TE Mobility 19. 06. 2021 WTSA 2004. 7 October, Florianopolis Brazil 19
3. Key Features Evolution Aspects of NGN • 4 Scenarios for PSTN evolution to NGN 3 rd Scenario 19. 06. 2021 4 th Scenario WTSA 2004. 7 October, Florianopolis Brazil 20
4. Future Issues Standards for Near Generation, not Next l NGN stands for Next Generation, but targeted for Near Generation l NGN could be value added framework for all players : Users, Operators, Providers and Regulators etc. l NGN could be evolved from Current Generation Network l NGN could be basement for making convergence world (real Telecommunication World) l NGN Standards could be Globalize rather than Localize boosting global village and shorten digital divide l ITU-T could be centre of NGN standards CGN Mobile Access Fixed Access Packet based Network TDM based Network Broadcasting Net. 19. 06. 2021 Near GN QOS Mobility Fixed Mobile Conv. Access Packet based Network TDM based Network Next GN BB X-casting MM Fixed Mobile Conv. BB Access Packet Based Tele-Broad conv. Network Broadcasting Net. WTSA 2004. 7 October, Florianopolis Brazil 21
4. 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 FG NGN Standards Video Services (TV, movie, etc) Data Services (WWW, e-mail, etc) Telephone Services Recommendations & Technical Reports Rec. Y. NGN-FRM Services Rec. Y. NGN-MOB Rec. Y. NGN-CMIP API Transport ACCESS CORE TR. 123. qos ACCESS NGN Release 1 TR. e 2 e. qos. 1 TR. atmipa TR. NGN. qos NGN Release 2 TR. enet NGN Release 3 Future Packets (? ) Ethernet or others x. DSL 19. 06. 2021 IMS Beyond IMS Optic WTSA 2004. 7 October, Florianopolis Brazil 22
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. (? ) End of 2006 (TBD) End of 2005 (TBD) I/F 1 NGN Release 1 I/F 2 NGN Release 2 • Services & Capabilities : S&C 1 • Functional Arc. & Spec. : FA&S 1 • IW and Interconnection : IAI 1 • Migration : MIG 1 • S&C 2 = S&C 1+ A 2 • FA&S 2 = FA&S 1 + B 2 • IAI 2 = IAI 1 + C 2 • MIG 2 = MIG 1 + D 2 19. 06. 2021 WTSA 2004. 7 October, Florianopolis Brazil NGN Release 3 • FPS Based (? ) 23
5. Conclusion Simplified Realization Model of NGN § Content-based Delivery Network Infrastructure § Service Broker Infrastructure § Information Broker Infrastructure Users Terminals / Appliances Convergence Integration Mobility (Uniq. ID) Service Providers S E R V I C E Program Providers I N F B R O K E R B R K NGN Infrastructure 19. 06. 2021 WTSA 2004. 7 October, Florianopolis Brazil 24
5. Conclusion NGN : Nothing new, but upgrading, adding Value Up-grading Current Infrastructure Adding Value Current Generation-Beach 19. 06. 2021 Next Generation-Water Park WTSA 2004. 7 October, Florianopolis Brazil 25
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