Impacts of NGN and Future Direction
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1 Impacts of NGN and Future Direction Chae Sub Lee Vice-Chairman of ITU-T SG13 Vice-Chairman of ITU-T FG Content 2. Ultimate Goal of User 3. Future Study Direction 4. Conclusion 1
2 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. NGN in 4 words by Fixed by Mobile by Wireless NGN = Broadband Managed IP Network for for Businesses for Players for Users 2
3 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-APT Workshop, Bangkok Thailand, 16~17 Management March 2007 NNI Towards for Agnostic Pre-NGN Video (TV, movie, etc) Telephone Data (WWW, , etc) Transport Agnostic Video Network Telephone Network Data Network Access Agnostic Service-based Pol./Reg. Voice Video MM Pol. Reg. Access Network Provider Domain ANP 1 (DSL) Service/Application Provider Domain SP1SP2SP3 SPm ANP 2 (DSL) IP (Future Packet?) Platform Pol.. X Reg. x xdsl/optic based Fixed-Mobile Resource-based Pol./Reg. User ANP 3 (Opt) ANP N (Cable) CNP 1 CNP 3 CNP 2 Core Network Provider Domain 3
4 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 Enabling for Convergence Business/Application oriented projects Limited 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 4
5 NGN Architecture Enabling RFIDs/USN NGN Architecture Enabling 5
6 Use case of NGN Architecture: Enabling Transport (Access and Core) Agnostic 2. Ultimate Goal of User Physical Communication Infrastructure Full Converged MM Terminal Radio/Wireless Spectrum: fi Wave Length: λi 6
7 2. 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 2. Ultimate Goal of User Business Communication Infrastructure Fixed Phone Mobile Phone One Integrated Bill WiFi WiBro Cable/ 7
8 Clue for the Future Study Convergence should be a critical framework for Future Vision: Any Time, Any Where, Any 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 -DOC-56: ITU-APT Workshop, Architecture Bangkok Thailand, 16~17 March
9 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 Providers 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 ITU-APT Workshop, Family Account Family Charging Bangkok Thailand, 16~17 March 2007 Int. Bill (1 or 2) : User Conv. Billing and Bill 9
10 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 10
11 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. 11
12 3. Requirements for Future Voice Voice (Audio) over Convergence 32kbps kbps All All IP IP Network kbps kbps kbps Premium Voice over various converged infrastructure 4. 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 12
13 Thank you for your attention!!! 13
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