PPT presentation

International Telecommunication Union NGN in ITU-T Chae-Sub, LEE Chairman of FG NGN WTSA 2004. 7 October, Florianopolis Brazil Contents 1. Why NGN ? 2. NGN Standardization 3. Key Features 4. Future Issues 5. Conclusion 20.08.2009 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. Present : Sep. of V & D Access Circuit Switch. Transp. Capa. Circuit Switch. Access Capa. Circuit Switch. Transp. Capa. Circuit Switch. Access Capa. Packet Switch. Transp. Capa. Packet Switch. Access Capa. Packet Switch. Transp. Capa. xDSL / FTTx Future : Integration of V & D Access and Transp. Near Future : Integration of V & D Transport Circuit Switch. Transp. Capa. Circuit Switch. Access Capa. Packet Switch. Access Capa. Packet Switch. Transp. Capa. Packet Switch. Access Capa. Packet Switch. Transp. Capa. VoIP / VToA 20.08.2009 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 (Any/All Applications e.g. voice , data , video) Services Anything & Everything Internet Protocol (IP) Scope Of “Internet” Video Services (TV, movie, etc) Data Services (WWW, e-mail, etc) Telephone Services Services Transport Everything (Any & All Network technologies) Transport ACCESS CORE API ACCESS Two Policy Domains 20.08.2009 WTSA 2004. 7 October, Florianopolis Brazil 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 Pol. C Reg. c Service-based Pol./Reg. Voice Internet Video MM Pol. Reg. Phone Internet M-Ph NGN PSTN IP-Net Mobile IP (Future Packet ?) Platform xDSL/Optic based Fixed-Mobile Pol. X Reg. x Resource-based Pol./Reg. Current PolicyRegulation Environment (Vertical) New PolicyRegulation Environment (Horizontal) WTSA 2004. 7 October, Florianopolis Brazil 5 20.08.2009 1. Why NGN ? NGN triggering Convergence Telecom Voice Data Broadcast. Video Telecom. mixed with Broadcast. Voice Data Tele-Broadcast. Contents Video Telecom Network Broadca. Network Start Convg. Telecom Network Broadca. Network Convg. NGN 3M* Services Telecom Services Broadca. Services Telecom Services Broadca. Services * 3M : Multimedia, Multiparty, Multicasting A B A B A B A·B Convg. • Integ. Reg. Auth. • Confirmed Bus. Area • Stable Tech. Infras. 6 • Sep. Reg. Authority • Stable Bus. Structure • Stable Tech. Infras. 20.08.2009 • 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 2. NGN Standardization NGN Standardization ITU-T : NGN Project 2004 (2001 ~ 2004) ITU-T NGN SG 2 SG 4 SG 9 SG 11 3GPP/2 xDSL Forum SG 12 SG 13 Q1 Q16 Q5 SG 16 SG 15 Q1 0 Q6 SG 17 WS (01 ~ 03) CCS A TTC TTA ITU-T JRG-NGN (2003. 9 ~ 2004. 6) ATIS ETSI ITU-T FG NGN (’04.6 ~ ’05. 5) 20.08.2009 WTSA 2004. 7 October, Florianopolis Brazil 7 2. NGN Standardization NGN 2004 Project o A new ITU Project on NGN : SG13, Nov. 2002 o Project description document has been prepared (http://www.itu.int/ITU-T/studygroups/com13/ngn2004/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 e2e transparency, incl. AN utilization 6. Interworking with legacy networks 7. Generalized mobility 8. Unfettered access from users to competing SPs and services 20.08.2009 WTSA 2004. 7 October, Florianopolis Brazil 8 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) Y.NGN-GRM (Y.2011) Overview of the NGN General principles and general reference model for NGN Deliverables for further study Deliverables Title Y.NGN-GRQ General requirements for NGN Y.NGN- FRM Y.NGN-CONV Y.NGN-MOB Y.NGN-CMIP Y.NGN-MIG Y.PSTN-NGN 20.08.2009 Functional requirements and architecture of the NGN Next Generation Networks – Convergence scenarios Mobility management requirements and architecture for NGN Customer manageable IP network Migration of networks to NGN PSTN migration to NGN WTSA 2004. 7 October, Florianopolis Brazil 9 2. NGN Standardization JRG on NGN Deliverables on QoS for further study Deliverables Y.NGN-QoS Title General aspects of QoS and network performance in the NGN Requirements and framework for end-to-end QoS architecture for NGN An end-to-end QoS architecture based on centralized resource control for IP networks supporting NGN services A QOS ARCHITECTURE FOR ETHERNET-BASED IP ACCESS NETWORK Y.e2eqos.1 Y.e2eqos.2 Y.123.qos Y.ipaqos Y.NGNNHNperf A QoS Framework for IP based access networks Network performance of hybrid networks in NGN 20.08.2009 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) • QoS (include the xDSL Access) • Security Capability (inc. Authentication) • NGN Control and Signaling Capability • Evolution from CGN to NGN WG WG 1 WG 2 Area SR (Service Requirements) FAM (Functional Architecture, and Mobility) Deliverables NGN Scope, Releases 1 / General Requirements, Servie and Capability, Mobility Services and Capabilities Req. and Architecture, Functional Req. for NGN Mobility, Functional Req. for Soft Router WG 3 WG 4 WG 5 WG 6 WG7 20.08.2009 QoS (Quality of Services) CSC (Control & Signalling) SeC (Security Capability) Evol (Evolution) TR-123.qos, TR-msnniqos, TR-NGN.qos, TR-NGN.NHNperf, TR-e2eqos.1, TR-enet, TR-atmipa, TR-racs, TR-ipaqos TRQ.IP QoS.SIG.CS1 NGN Security Framework Evolution of Networks to NGN, PSTN evolution to NGN Future Packet Network requirements FPBN (Future Packet-based Network) WTSA 2004. 7 October, Florianopolis Brazil 11 2. NGN Standardization NGN Focus Group Deliverables on Service Requirements and Architecture WG Title Current Draft Target Date Release Status 1 1 NGN Scope Services & Capabilities FGNGN-OD-00037 FGNGN-OD-00038 1Q05 1Q05 1 1 D D 1 1 1 1 Mobility Services & Capabilities NGN Release 1 general requirements NGN general requirements (releaseindependent requirements) NGN general services and capabilities (release independent) TBD FGNGN-OD-00036 TBD TBD 1Q05 2Q05 2Q05 2Q05 1 1 RI RI P D P P D 2 2 2 2 20.08.2009 Requirements & Architecture for NGN Functional Requirements for NGN Mobility Functional Requirement for Soft Router Customer Manageable IP Network FGNGN-OD-00035 FGNGN-OD-00042 FGNGN-OD-00043 FGNGN-OD-00044 1Q05 1Q05 TBD TBD 1 1 2 2 D D D D 12 WTSA 2004. 7 October, Florianopolis Brazil 2. NGN Standardization NGN Focus Group Deliverables on Quality of Services 3 3 3 3 A QoS control architecture for Ethernet-based IP access networks (TR-123.qos) Multi Service Provider NNI for IP QoS (TRmsnniqos) General aspects of QoS and network performance in NGN (TR-NGN.QoS) Network performance of non-homogeneous networks in NGN (TR-NGN.NHNperf.). FGNGN-OD-00010 FGNGN-OD-00027 FGNGN-OD-00045 FGNGN-OD-00025 Feb. ’05 Feb. ‘05 Feb. ‘05 Feb. ‘05 1 1 RI RI D D D D 3 3 3 3 3 3 20.08.2009 Requirements and framework for end-to-end QoS in NGN (TR-e2eqos.1) A QoS architecture for Ethernet networks (TRenet) A QoS control architecture for ATM-based IP access networks (TR-atmipa) Resource and admission control sub-system (TRracs) A QoS Framework for IP-based access networks (TR-ipaqos) Performance measurement and management for NGN (TR-pmm) FGNGN-OD-00032 FGNGN-OD-00026 TBD FGNGN-OD-00031 FGNGN-OD-00033 FGNGN-OD-00024 July ‘05 July ‘05 July ‘05 July ‘05 July ‘05 May ‘05 1 1 1 1 1 1 D D P D D D 13 WTSA 2004. 7 October, Florianopolis Brazil 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 6 6 7 7 7 7 NGN Security Framework Evolution of Networks to NGN PSTN Evolution to NGN Problem Statement Requirements High Level Architecture Candidate Technologies FGNGN-OD-00034 FGNGN-OD-00039 FGNGN-OD-00040 FGNGN-OD-00028 FGNGN-OD-00029 TBD TBD TBD 1Q05 1Q05 4Q04 2Q05 3Q05 3Q05 TBD 1 1 TBD TBD TBD TBD D D D D D P P 20.08.2009 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, 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 Unrestricted Access Separation Services with Transport Convergence btw. Fixed & Mobile Open Access I/F Architecture and Open API Manageable Broadband 15 QoS-enabled Transport Multiple-Broadband 20.08.2009 WTSA 2004. 7 October, Florianopolis Brazil 3. Key Features Functional Architecture Model A-1 Application Server Function (may include own Authentication, Authorization and Accounting) Application Network Border A-2 Application Gateway Function S-14 CDR CDR S-9 S.Authentication & Authorization Function S-10 Registration Function CDR S-13 PGCF CDR Charging Collection Function (CCF) User Profile DB Function Other NGN Session & Call Control S-4 S-17 LS Function CDR S-1 Terminal Function S-18 CDR Session Control Proxy Function T-16 Session Control Function S-11 Media Resource Control Function S-12 MGCF? Transport Adaptation Transport Resource / Policy Control Function T-12 SGF other IP MM Network (e.g. IMS) NMS EMS Proxy Function Management T-18 T. Authentication T-11 &Authorization Media Function Resource T-20 Processing T.Network Access Function T-7 T-13 Access Relay Control Function T-4 Function Traffic CDR T.Network Access T-15 Measurement Transport Process Function Function CCF Resource & T-8 Enforcement Mobility Support Functions T-6 Function T-1 AMGF Packet Transport Function T-3 Internet PGF Transport T-9 TMGF PSTN/ISDN Scope of NGN All lines of this type attach to the corresponding input line at the CCF within session & call control Connection point 20.08.2009 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 Manageable NGN Network Soft Switch Functions AAA Service Control Addressing, Naming Signaling, OAM C/M-Plane Service Management/Call Center FCAPS Management Subscriber Management QoS/SLA Management Routing, Signaling, OAM Various Server Network Existing Wireline/ Wireless Network PSTN/ Cable/TV Network U-Plane CMTS CMTS Customer Premises Network Remote Access Switch Remote Access Switch DSLAM/ONU DSLAM/ONU Access Access Gateway Gateway Edge BE Router Edge BE Router Ingress LER Ingress LER Edge MCU Edge MCU Core BE Router Core BE Router Core LSR Core LSR Core Multicast Node Core Multicast Node L1/L2 Node L1/L2 Node Edge BE Router Edge BE Router Egress LER/GW Egress LER/GW Edge MCU or GW Edge MCU or GW L1/L2 Node/GW L1/L2 Node/GW Metro Metro Switch Switch L1/L2 Node L1/L2 Node UNIz 20.08.2009 UNIy UNIx NNIx NNIy NNIy NNIz 17 WTSA 2004. 7 October, Florianopolis Brazil 3. Key Features QoS Aspects of NGN General reference configuration for NGN QoS, NP and QoE Man-Machine Network Interface Interface Network Man-Machine Interface Interface CPN AN CN AN CPN TE User TE User Network Performance for NGN QoE Quality of Service for NGN QoE Quality of Experience User behaviour attribute Focus on userexpected effects User subject Quality of Service User oriented Service attribute Focus on userobservable effects Between (at) service access points Network Performance Provider oriented Connection/Flow element attribute Focus on planning, development (design), operations and maintenance End-to-end or network elements capabilities 18 20.08.2009 WTSA 2004. 7 October, Florianopolis Brazil 3. Key Features Mobility Aspects of NGN Mobility Service Continuity Service Discontinuity Seamless Handover Handover Roaming Portability Border (Gateway) Node Access Network Access Node Intermediate Node Access Node Mobile Terminal (1) Mobile Terminal Intra-AN Mobility NGN CN Border Node Border Node (2) Mobile Terminal Inter-AN Mobility Border (Gateway) Node Access Network Intermediate Node Access Node NNI Border Node NGN CN Border Node (3) Mobile Terminal Access Node Mobile Terminal Inter-CN Mobility (4) Inter-TE Mobility Inter-TE Mobility Border (Gateway) Node Access Network Intermediate Node (4) Fixed Terminal 20.08.2009 WTSA 2004. 7 October, Florianopolis Brazil 19 3. Key Features Evolution Aspects of NGN • 4 Scenarios for PSTN evolution to NGN 3rd Scenario UAM11 UAM31 4th Scenario UAM11 UAM31 LE3 AN32 AN12 LE1 TE TE TE AN12 LE1 TE TE TE LE3 AN32 PBX13 PBX33 PBX13 PBX33 UAM21 UAM41 UAM21 UAM41 AN22 LE2 LE4 AN42 PBX23 PBX43 AN22 LE2 LE4 AN42 PBX23 UAM11 UAM31 PBX43 AN12 LE1 TE TE TE LE3 AN32 PBX13 PBX33 UAM11 CS UAM31 AN12 CS LE1 LE3 AN32 PBX13 SG SG SG PBX33 PSN TG PSN TG UAM21 TG TG UAM41 AN22 AG21 New AG AG41 New AG LE2 LE4 AN42 PBX23 PBX43 20.08.2009 AN22 PBX23 AN42 PBX43 WTSA 2004. 7 October, Florianopolis Brazil 20 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 Mobile Access Packet based Network Near GN Fixed Mobile Conv. Access Packet based Network Next GN BB X-casting MM Fixed Mobile Conv. BB Access Packet Based Tele-Broad conv. Network Fixed Access TDM based Network QOS Mobility TDM based Network Broadcasting Net. 20.08.2009 Broadcasting Net. WTSA 2004. 7 October, Florianopolis Brazil 21 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 FG NGN Standards Recommendations & Technical Reports Rec. Y.NGN-FRM Services Rec. Y.NGN-MOB TR. e2e.qos.1 TR. enet Rec. Y.NGN-CMIP Transport ACCESS CORE API ACCESS TR. 123.qos TR. atmipa TR. NGN.qos NGN Release 1 NGN Release 2 NGN Release 3 Future Packets (?) Ethernet or others xDSL 20.08.2009 IMS Beyond IMS 22 Optic WTSA 2004. 7 October, Florianopolis Brazil 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 NGN Release 3 •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+ A2 •FA&S 2 = FA&S 1 + B2 •IAI 2 = IAI 1 + C2 •MIG 2 = MIG 1 + D2 20.08.2009 •FPS Based (?) WTSA 2004. 7 October, Florianopolis Brazil 23 5. Conclusion Simplified Realization Model of NGN  Content-based Delivery Network Infrastructure  Service Broker Infrastructure  Information Broker Infrastructure Users Terminals / Appliances S E R V I C E B R K Convergence Integration Mobility (Uniq. ID) Program Providers I N F B R O K E R Service Providers NGN Infrastructure WTSA 2004. 7 October, Florianopolis Brazil 24 20.08.2009 5. Conclusion NGN : Nothing new, but upgrading, adding Value Up-grading Current Infrastructure Adding Value Current Generation-Beach 20.08.2009 Next Generation-Water Park 25 WTSA 2004. 7 October, Florianopolis Brazil