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

Why NGN ? NGN Standardization Key Features Future Issues Conclusion Contents Why NGN ? NGN Standardization Key Features Future Issues Conclusion 26.12.2018

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. 26.12.2018

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, e-mail, etc) Video Services (TV, movie, etc) ACCESS CORE API 26.12.2018

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. 26.12.2018

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 26.12.2018

NGN Standardization ITU-T : NGN Project 2004 SG 2 SG 9 SG 12 SG 16 WS (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 (2003. 9 ~ 2004. 6) Q1 Q5 Q10 Q16 Q6 26.12.2018

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 (http://www.itu.int/ITU-T/studygroups/com13/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 26.12.2018

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 26.12.2018

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 26.12.2018

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 26.12.2018

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 26.12.2018

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 26.12.2018

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 26.12.2018

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 26.12.2018

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. 26.12.2018

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. 26.12.2018

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 26.12.2018

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 26.12.2018

Evolution Aspects of NGN 3. Key Features Evolution Aspects of NGN 4 Scenarios for PSTN evolution to NGN 3rd Scenario 4th Scenario 26.12.2018

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. 26.12.2018

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, e-mail, etc) Telephone Services Services API Transport ACCESS CORE ACCESS Future Packets (?) Ethernet or others xDSL Optic 26.12.2018

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 26.12.2018

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 26.12.2018

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 26.12.2018