Key Features of ITU-T T NGN and Future Vision

Transcription

1 Key Features of ITU-T T NGN and Future Vision Chae Sub Lee (chae-sub.lee@ties.itu.int) Vice-Chairman of ITU-T SG13 Vice-Chairman of ITU-T FG Content 1. Key Features of ITU-T NGN 2. Impacts of ITU-T NGN 3. Ultimate Goal of User 4. Future Study Direction 5. Conclusion 1

2 1. Key Features of ITU-T NGN Definition of NGN ITU-T Rec. Y.2001 Next Generation Network (NGN): 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 enables unfettered access for users to networks and to competing service providers and/or services of their choice. It supports generalized mobility which will allow consistent and ubiquitous provision of services to users. 1. Key Features of ITU-T NGN NGN in 4 words by Fixed by Mobile by Wireless NGN = Broadband Managed IP Network for Services for Businesses for Players for Users 2

3 1. Key Features of ITU-T NGN Key Principles of NGN Open architecture: open to support service creation, service updating, and incorporation of service logic provision by third parties and also support Distributed control as well as enhanced security and protection. Independent provisioning: service provision process should be separated from network operation by using distributed, open control mechanism to promote competition. Multiplicity: The NGN functional architecture shall offer the configuration flexibility needed to support multiple access technologies. 1. Key Features of ITU-T NGN Key Features of ITU-T NGN Packet-based transfer; Separation of control functions among BC, call/session, and application/ service; Decoupling of service provision from transport; Support for a wide range of services based on service building blocks; Broadband capabilities with end-to-end QoS; Interworking with legacy networks via open interfaces; Generalized mobility; Unfettered access by users to different service providers; A variety of identification schemes; Unified service characteristics for the same service as perceived by the user; Converged services between fixed/mobile; Independence of service-related functions from underlying transport technologies; Support of multiple last mile technologies; Compliant with all regulatory requirements (e.g. emergency, privacy, lawful interception, etc.) 3

4 1. Key Features of ITU-T NGN Overall NGN Architecture NGN= Service Stratum + Transport Stratum Basic = User + Control + Management Applications ANI Application Support & Service Support Management End-User Service User Profiles Service stratum Network Attachment Control Transport User Profiles Service Control Transport Control Resource and Admission Control Other Networks UNI Transport stratum Transport Control Media ITU-D/ITU-T Seminar on Standardization and Development Management of NGN for Arab Region NNI 2. Impacts of ITU-T NGN Impacts of NGN Principles Pre-NGN Video Services (TV, movie, etc) Telephone Services Data Services (WWW, , etc) New Policy Regulation Environment (Horizontal) Service-based Pol./Reg. Voice Video MM Video Services Network Pol. Reg. Telephone Services Network Data Services Network Access Network Provider Domain ANP 1 (DSL) New Business Environment (Compositional) Service/Application Provider Domain SP1SP2SP3 SPm ANP 2 (DSL) IP (Future Packet?) Platform Pol.. X Reg. x ANP 3 (Opt) CNP 1 CNP 2 xdsl/optic based Fixed-Mobile User ANP N (Cable) CNP 3 Resource-based Pol./Reg. Core Network Provider Domain 4

5 2. Impacts of ITU-T NGN Addition of Service Components Applications Service Stratum Application Support Application and Service Support Legacy Terminals Legacy Terminals GW GW S. User Profile Access T. User Network Attachment Profile Control Attachment (NACF) Other NGN Service Components Service Component PSTN / ISDN Emulation Service Component IP Multimedia IP Multimedia Component &PSTN/ISDN Service Component Simulation Resource and Admission Control (RACF) Service Control Other Networks Customer Networks NGN Terminals Access Transport Network Edge Core Core transport Transport End-User Transport Stratum Figure 1. Future revision of Figure 8/Y.2012: NGN components including service component * Ref: NGN-GSI Output Document T05-NGN.GSI-0067R1 2. Impacts of ITU-T NGN Enabling for Convergence Business/Application oriented projects Limited Services FMC RFID Others BE IP Limited BB N G N Managed IP Converged Broadband Simple linkage btw layers Simple business relationships Simple players Simple linkage btw layers with dynamics Diverse and Flexible business relationships Diverse business models and players 5

6 2. Impacts of ITU-T NGN NGN; a Convergence Platform Combination IP with Broadband accelerating intrinsic convergence Service convergence: Web based service provisioning Network convergence: IP over any broadband transport networks Advanced Mobile and Wireless technology initiate business convergence such as Fixed-Mobile convergence Broadband Fixed, Wireless and Mobile technology boost another business convergence, called Multiple Play: Tele-Broadcasting FMC Tele- Broadcasting NGN 2. Impacts of ITU-T NGN NGN Architecture Enabling RFIDs/USN 6

7 2. Impacts of ITU-T NGN NGN Architecture Enabling 3. Ultimate Goal of User Physical Communication Infrastructure Full Converged MM Terminal Radio/Wireless Spectrum: fi Wave Length: λi 7

8 3. Ultimate Goal of User Logical Communication Infrastructure Mobile Phone Nr User Id: Earth-Korea- Man:LeeChaesub -19yy-mm-dd Fixed Phone Nr Id - Certified by UN - Cable/ Id Id 3. Ultimate Goal of User Business Communication Infrastructure Fixed Phone Mobile Phone One Integrated Bill WiFi WiBro Cable/ 8

9 Clue for the Future Study Convergence should be a critical framework for Future Vision: Any Time, Any Where, Any Services and Any Devices Fixed Mobile Convergence should be the 1 st instantiation Any information/services over any transport infrastructures: VoDSL, TVoMobile, etc. (because of transport agnostic) Changing Role of current network model; U-/C-/M- IP is the point for service offerings: Everything ov. IP ov. Anything Key role of below IP is providing connections; BW, QoS etc Signaling among distributed network element, not end-to-end Many different IDs for different services; E.164, Names, IP Add etc. User expectation for Management is changing; no interest for connection or operation, only for services and businesses New Paradigm: New model of User/Control/Management Key theme of Future User Plane: Media Processing System Management and Security C Media Provision Media Source B User Command End System D G Media Control A E F1 F2 Media Delivery A: Media Stream, B: Media Request, Descriptive Metadata/Media Info etc. C: Rights Management Interaction, G: Access Control System D: Service Interaction Message E: Media Location information, Billing information, Media Control Command, etc. F1: Presentation Control Signal, F2: Media Stream *Reference: FG ITU-D/ITU-T -DOC-56: Seminar on Architecture Standardization and Development of NGN for Arab Region 9

10 Key theme of Future Control Plane: Identity Processing User ID Customer ID Service ID Comm. ID Family 1 Mobile Phone Nr Fixed Phone Nr Content Owner ID Provider ID Media ID Session ID User Id: Earth-Korea- Man:LeeChaesub -19yy-mm-dd - Certified by UN - Family 2 Family 3 WiFi WiBro Id Cable/ Id TCP/UDP Port ID IP Address ATM/Ether net ID MAC ID E.164 ID Family 4 Id Line ID Key theme of Future Management Plane: ABC Processing Accounting: Billing: Charging: Mobile Ph A B C D Mobile Ph Mobile Fixed Ph Mobile Ph Fixed Ph Ph Fixed Ph Fixed Ph Set of functions required for Usage Metering, Charging and Billing (ITU-T Rec. Q.825) Administrative function to prepare bills to service customers, to prompt payments, to obtain revenues and to take care of customer reclaims (ITU-T Rec. Q.825) The set of functions needed to determine the price assigned to the service utilization (ITU-T Rec. Q.825) Mobile Ph Mobile Ph 1 Mobile Ph 1 Mobile Ph Mobile Fixed Ph Ph Mobile Mobile Fixed Acc Fixed Ph Ph Mobile Ph Fixed Chg Ph Fixed Ph Fixed Acc Fixed Ph Fixed Chg Acc Chg Acc Chg Acc Chg Providers Family Account Family Charging Int. Bill (1 or 2) : User Conv. Billing and Bill 10

11 Change Views: Extend Quality of Service Meaningful QoS for Multimedia over NGN Everything over Intelligent Seamless IP Quality of Personalization Quality of Security Quality of Mobility Quality of Media One-stop Service Service AAA Personalized service Open/Control Network AAA; Terminal, User, Mobility, Access etc. RT Mobility control Service Continuity control Security support End-End QoS QoS Monitoring Service Policy handover Need further study in more details Confirmed Killer-App over Convergence Network Convergence:, NGN etc. Service Convergence: FMC, etc. Terminal Convergence: PC, PDA, Int.Phones etc. Business Convergence: Triple Play, Q Play etc. Fundamental Core Service: Voice 11

12 7 khz Audio Class Status of Voice Quality During the last 20 years, big improvement in Use of Voice But during the last 20 years, no improve in Quality of Voice Cost/Price oriented policy, but change to Quality based 3.1 khz Audio Class PSTN ISDN 2G 3G VoIP NGN(?) Status of Voice Codecs PSTN: G.711 Mobile communication: AMR for 3GPP, EVRC for 3GPP2 VoIP: G.729, G.729.1, G.711, G.723.1, G.726, ILBC NGN? Too many speech codecs prevent VoIP interoperability. 12

13 Voice (Audio) over Convergence 32kbps kbps All All IP IP Network kbps kbps kbps Premium Voice over various converged infrastructure 5. Conclusion Framework Model for Future Study Mang. Target of Future Study User: RFID User: Voice Mang. Management Control Control User: TV Control CAC/Resource NACF RACF Agnostic Transport 13

14 FGNGN ( ~ ) 5. Conclusion NGN-GSI WG 1 WG 2 WG 3&4 WG 5 WG 6 WG 7 R1 Services R1 Capabilities FRA/IMS MOB CSF QoS Performance IP QoS Sig. RACF Security Migration FRW Migration SCR FPBN REQ Candidate Tec Convergence Services/Capabilities (MM Type) Convergence Services/Capabilities (Broadcasting Type) Networked ID services/capability Release 2 Services/Capabilities Functional Requirements to support Public Services Mobility and FMC Functional Architecture & Requirements Architecture to support fixed Broadcasting Networked ID Functional Architecture & Req. Release 2 Functional Architecture Model and Requirements Home Network Functional Architecture in NGN Environment Performance under Non-Heterogeneous Network Environment Home Network Signaling REQ Continuation of End-End QoS aspects over different access network IP QoS Signaling Protocol Home Network Signaling REQ NGN Signaling requirements NGN Signaling Protocol RACF relevant protocols Authentication requirements of Networked ID services (overall) Security/Authentication of RFIDs Security on Single Sign-On PSTN/ISDN Emulation Architecture PSTN/ISDN Emulation Protocols NGN Interworking Requirements NGN Interworking Scenarios migrate to NGN Home Gateway to connect NGN Gateway for Networked ID services (RF Parts) Candidate Technology for future packet based networks FPBN Architecture Thank you for your attention!!! 14