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1 NGN Service KRnet 지능망서비스개발팀 황진경 서비스개발연구소

2 목차 I. NGN 서비스환경 II.NGN 서비스구조 III.NGN 서비스동향 IV. KT-NGN 서비스방안 V. 결언 References 2/38 KRnet 2003

3 I. NGN 서비스환경 [1] 1. NGN 서비스특징 2. NGN 서비스의비즈니스환경 3. NGN 서비스의기술환경 4. So what 3/38 KRnet 2003

4 1. NGN 서비스특징 1/2 О NGN provides Capabilities to allow all kinds of Services possible : All kinds of media (audio, visual, audiovisual) All kinds of encoding schemes (PCM, MPEG,..) All kinds of data services Conversational, Unicast, Multicast, Broadcast Messaging Realtime, Non-realtime data transfer Delay sensitive, Delay tolerant services Different Bandwidth demands (x kbps ~ xxx Mbps) Guaranteed or non-guaranteed. 4/38 KRnet 2003

5 1. NGN 서비스특징 2/2 О Decoupling of Services and Network Offered separately & evolve independently Separated functions for Services and for Transport О Functional entities for Service control Policy, Session, Media, Resources, Service delivery, Security,.. they are distributed over existing and new infrastructure.. О NGN-aware End-Terminal devices POTS, Fax, Mobile devices, SIP, H323 phone О Generalized mobility Consistent provision of services to a user with different terminals, whatever they are. 5/38 KRnet 2003

6 2. NGN 서비스의비즈니스환경 О Telcos are under threat: Lower growth of PSTN High growth of Data Revenue growth can come from: Unique/hard to replicate communication service (in terms of deployed network or customers) Complete solution to customer needs by enhancing service values And many regulatory obligations: Legal interception Malicious call handling Number portability 6/38 KRnet 2003

7 3. NGN 서비스의기술환경 О Affordable terminals Multimedia IP phones, PC, hand-held computers, application enabled mobile phone,.. О Fluent Web-based services Multimedia contents, ecommerce,.. О New network access technologies xdsl, WLAN, FTTH,.. О Emergence and growth of digital media products MP3, DVD, console games 7/38 KRnet 2003

8 4. So what Rich set of new, high value services Use diverse terminals and media Focus on net-centric value-added Open software procurement Profitable NGN services & Every party is happy^^ Multiple value-chain players 8/38 KRnet 2003

9 II. NGN 서비스구조 1. NGN 서비스구조표준동향 2. 계층별지능 3. NGN 서비스개념구조 Application Plane Management Plane Control Plane Transport Plane SCN 9/38 KRnet 2003

1. NGN 서비스구조표준동향 1/4 О International Packet Communications Consortium (IPCC) Reference Architecture (20

10 1. NGN 서비스구조표준동향 1/4 О International Packet Communications Consortium (IPCC) Reference Architecture ( ver.2.0) [2] Media Gateway Controller Function (MGC-F), Media Gateway Function (MG-F), Applications Server Function (AS-F), Media Server Function (MS-F), Accounting Function (A-F), 10/38 Signaling Conversion Function including signaling gateway function and signaling routing function KRnet (SC-F) 2003

11 1. NGN 서비스구조표준동향 2/4 О MSF Reference Architecture (Rel. 2) Application Plane Signaling Transport Signaling ix Control Plane sg Adaptation Plane Network Edge Control Function np Service Information Function di Service Logic Function sc Service Coordination Function sa Network Service Instance Control Function Sig G wy Sig N twk Function Function MCF HOCF RACF Call & Bearer Signaling Switching Plane st mb es bs' Logical Port Function bc Bearer Control Function bs Virtual Switch Control Function sp vsc Virtual Switch Function is Logical Media Endpoint Function Call Signaling ic ia Partitioning Function sdm i/fs vscm sm Service Creation Environment Function Sub-Ordinate Management Function vsm scm Service Management Function Super-Ordinate Management Function Management Plane Service Logic Function (SLF), Service Information Function (SIF), Service Coordination Function 11/38 KRnet (SCF) 2003

12 1. NGN 서비스구조표준동향 3/4 О 3GPP IMS Functional Architecture for service provision 3GPP TS (v5.2.0, ) AS AS Sh SCIM SIP SIP Application Application Server Server ISC HSS Si Cx S-CSCF ISC ISC OSA OSA service service capability server server (SCS) (SCS) OSA OSA application server server OSA API Mr AS : Application Server IM-SSF SCIM : Service Capability Interaction Manager MAP HSS: Home Subscriber Server CAP MRFC S-CSCF: Serving Call Session Control Function IM-SSF: IP Multimedia Service Switching Function Camel Camel Service CAMEL : Customized Applications for Mobile Service Environment network Enhanced Logic MRFC : Media Resource Function Controller OSA : Open Service Access 12/38 KRnet 2003

13 SCN End-User/Terminal 1. NGN 서비스구조표준동향 4/4 О ITU-T SG11 NGN Functional Architecture (D.432, , FT) [3] Admission Control Function (ACF), Admission Control DB Function (ACDF), Address Allocation Function (ALF), Access Management Function (AMF), Access Relay Function (ARF), Content Delivery Function (CDF) Content Delivery Control Function (CDCF), NAPT Function (NAPTF) NAPT Control Proxy Function (NCPF), Firewall Control Proxy Function (FCPF), Firewall Function (FWF), SCN Media Gateway Control Function (SMGCF), SCN Media Gateway Function (SMGCF), Resource Control Proxy Function (RCPF), Resource Control Function (RCF), Service Control Proxy Function (SCPF), Specialized Resource Control Function (SRCF), Specialized Resource Processing Function (SRCF), Transport Policy Enforcement Function (TPEF), User Location Function (ULF), User Profile Control Function (UPCF) U4 U0 U3 U1 U2 ALF AMF ARF NCPF UPCF ULF Application Plane 13/38 KRnet 2003 FCPF ACDF ACF RCPF RCF Transport Plane SCPF CDCF SRCF SMGCF NAPTF FWF TPEF CDF SRPF SMGF To other SCPF or end users

14 2. 계층별지능 О Intelligence & Services in each Plane Plane Application Plane (SCP, SA, AS, MS, WAS, PS..) Services Service Provider, ASP: - App. svc: mm-conference, LBadvertise, mm-ums, ecommerce, Personal Agent, mmgroupcomm.,.. Control Plane (SSP, CA, SSW,..) Access Plane (xdsl, PSTN, WLAN,..) SA: Service Agent, CA: Call Agent, WAS: Web AS PS: Presence Server Network Operator: - Basic svc: call/session connection - Supplementary svc: call hold, call transfer, call forwarding,.. Access Provider: - Basic svc: bandwidth-on-demand, jitter-on-demand, delay-on-demand - Retail svc: VoD, online game, highspeed internet access, video chat, multicast, IPVPN,.. 14/38 KRnet 2003

resources 15/38 KRnet 2003 AAA Session Control MS MG WLAN MG Internet - AS : Application Server - MM : Multimedia - MS :

15 3. NGN 서비스개념구조 ws ws ws ws ws Web services AS UDDI 개인형기업형호스팅 Applications 3 rd party SP Game V-Enterprise Contents E-commerce 3 rd Party Services PCS/ MG IMT-2000 Location Presence MG PSTN Call Control Billing SSW NGN MG xdsl,lan Media resources 15/38 KRnet 2003 AAA Session Control MS MG WLAN MG Internet - AS : Application Server - MM : Multimedia - MS : Media Server - MG : Media or Mediation Gateway - SSW : Softswitch - WS : Web Services - UDDI : Universal Description, Discovery, Integration

16 III. NGN 서비스동향 1. OSA/Parlay 기반서비스 2. SIP 기반서비스 3. Killer apps. from each party 4. Common Features 5. NGN 서비스생성기술 16/38 KRnet 2003

Not standardized OSA Internal API HLR CSE

17 1. OSA/Parlay 기반서비스 1/5 О 서비스제공구조 Application server Application OSA API framework User Location Call control Service capability servers interface class Not standardized OSA Internal API HLR CSE WGW WPP Servers E.g. Location server Billing server 17/38 KRnet 2003

18 1. OSA/Parlay 기반서비스 2/5 (Eurescom P1110) О Buddy List Mobile version of messenger services Features Call buddies Locate buddies Notify when buddies are near Chat with buddies Subscription / BuddyList management О InTouch Web-based configuration of calling numbers with specified actions Features Contact number management: fixed, mobile, voic number Calling number management: rules for actions such as call forwarding to mobile, voic or reject О Service scheduler To realize all around availability of user s scheduler using Outlook infrastructure: When outdoors outlook schedule data is reachable by phone (PSTN/PLMN): From the phone, the schedule data can be changed О Location-based advertisement О Voting Manager 18/38 KRnet 2003

19 1. OSA/Parlay 기반서비스 3/5 Service Scheduler 제공구조 19/38 KRnet 2003

20 1. OSA/Parlay 기반서비스 4/5 О Virtual Terminal 서비스 All available devices and terminals are considered as components of one big Virtual Terminal for a user Different Input, Output and Computing Capabilities Initiating, receiving, using multiple devices, configuring, administrating Virtual Terminals Plain-old phone Mobile phone PDA Camcorder Digital camera Laptop as H323/SIP terminal Workstation Printer Laptop Virtual Terminal Cordless phone PC as H323/SIP terminal Interactive TV Microphone App DUS NGN 20/38 KRnet 2003

21 1. OSA/Parlay 기반서비스 5/5 - Virtual Terminal 제공구조 21/38 KRnet 2003

22 2. SIP 기반서비스 1/3 О 서비스제공구조 (3GPP) Application Server Service Logic HSS Service Platform Trigger Points SIP Interface ifc sfc SIP S - CSCF SIP S P T Filter Criteria SIP 22/38 KRnet 2003

23 2. SIP 기반서비스 2/3 О IP telephony / teleconference О Centrex/PBX services О Multimedia retrieval service О Presence and instant messaging О Calendar-based call setup О Address book-based call setup.. 23/38 KRnet 2003

24 2. SIP 기반서비스 3/3 О Call features Call Hold Consultation Hold Music on Hold Call Waiting Whispered Call Waiting Blind Transfer Unattended Transfer Attended Transfer Consultative Transfer Call Park Call Pickup Call Monitoring Barge in Auto-answer Intercom Speakerphone Paging Speed Dial Click to Dial Hotline Inbound Call Screening Outbound Call Screening Find Me Call Forwarding Do Not Disturb Voice Message Screening Message Waiting Distinctive Ringing Call Return Automatic Redial/CallBack Conference Call Presence Enabled Conferencing IM Conference Alerts Single Line Extension Prepaid Calling Voice Portal 24/38 KRnet 2003

25 3. Killer Apps from each party 1/2 О 3G (KTICOM) Moving picture phone service О 3G (KTF) Music plaza Live bell / Live screen Cinema complex / Video mail Live broadcasting Traffic information О 3G (J-Phone) Graphic-based contents(education, medical service(video)) Video chat/video mail On-line game, mp3, karaoke,vod location-based contents(city-guide, traffic information) О Data oriented service (Motorola) Messaging Java games /apps Location services Broadcast service Download and DRM NG services (Lucent) - Broadcast video - Video on demand - Consumer video conferencing - Online gaming - Personal portal 4G mobile multimedia service (ETRI) Visual communication(video mail/realtime video telephony/virtual school) Mobile TV Telepresence (virtual meeting/ training/ education/ traveling) Telematics/telemetry(location/ position-based supp. Services) Entertainment (3D network games) Telemedicine M-business/M-life/M- Emergency 25/38 KRnet 2003

26 3. Killer Apps from each party 2/2 О IP biz solution features (Nortel) Point-to-point video calling Video conferencing Messaging/presence Collaboration Integrated communication desktop Flexible IP display desktop Web-based call screening/routing Personal receptionist (with singlenumber) Customer/vendor portal О New apps ideas (Nortel) Transportation(instant flight information, video check-in kiosk) Home improvement center (in-store information kiosk) University (integrated campus communication solution) Banking (personal service portal for top tier customers) ALLUP-prime (KT VOIP) 1:1 communication (video/group/voice) 1:N communication (video/voice conference/video lecture/video chatting) Message communication (UMS/SMS/MMS/IM/ /ENUM) Open contents: info. Search Closed contents: local life, VOD, AOD Existing service bundling (Telcordia) Content delivery service bundle(cp+call) Personal management service bundle(calendar+reminder+confer ence call) Presence management and messaging service bundle(multiple IMs+call+SMS) 26/38 KRnet 2003

27 4. Common Features О NGN service will have the common features told from all the parties.. Voice, text, video communication Call supplementary services Presence-based Location-based Personal Information Management-based Messaging (multimedia real/non-realtime) Contents-based 27/38 KRnet 2003

28 5. NGN 서비스생성기술 - Overall assessment of service creation technologies [5] 28/38 KRnet 2003

29 IV. KT-NGN 서비스방안 1. KT-NGN 서비스도입방안 2. KT-NGN 서비스가입자및서비스환경 3. KT-NGN 서비스망구조 4. KT-NGN 서비스제공방안 5. 단계별디플로이방안 29/38 KRnet 2003

30 1. KT-NGN 도입방안 О 1 단계 : 액세스게이트웨이도입 (2002) 노후반전자교환기를 AG 로대체 (with V5.2) 패킷전달망확보 О 2 단계 : 소프트스위치도입 (2003~2004) Class4 및 5 급으로 MG(AG,TG) 를제어 VoP음성및부가서비스 QoS보장패킷전달망확대및서비스플랫폼확보 О 3 단계 : VoP 확대 (2005~2006) 소프트스위치및미디어게이트웨이확대공급 응용서비스플랫폼확대구축 VoP 기반멀티미디어서비스 О 4 단계 : All IP(2007~) TD 교환기 AG 로대체 음성 + 데이터의 end-to-end VoP 완성 PSTN 음성 VoP 기반멀티미디어서비스 음성 + 데이터멀티미디어서비스 30/38 KRnet 2003

2. KT-NGN 가입자및서비스환경 기존 PSTN 및초고속인터넷가입자대상 기존

PSTN 가입자 Best-effort 공중인터넷망 (4) LAN 가입자 (5)

31 2. KT-NGN 가입자및서비스환경 기존 PSTN 및초고속인터넷가입자대상 기존 PSTN 및 IP 망서비스와공존 (1) AGW수용 POTS 가입자 NGN AS 소프트스위치 NGN AS NGN AS NGN CP (2) RGW 수용 POTS 가입자 NGN 백본망 (3) AGW 수용 xdsl AGW QoS-enabled PSTN 가입자 Best-effort 공중인터넷망 (4) LAN 가입자 (5) WLAN 가입자 Internet AS Internet AS Internet CP 31/38 KRnet 2003

32 3. KT-NGN 서비스망구조 OSA 응용서버 Presence Server Location UMS Server Server MMS Server Web Server OSA API OSA게이트웨이 응용서버 SIP,HTTP SIP SIP/OSA API 피쳐서버 Softswitch MeGaCo Media Server Conference Server IVR 서버 vxml Server AGW MeGaCo SIP SIP POTS Phone IP Phone Soft Phone +Web 32/38 KRnet 2003

33 4. KT-NGN 서비스제공방안 О 주요공통기능 음성및영상통화 호부가서비스 프레젠스기반 위치기반 개인정보관리기반 메시징서비스 컨텐츠서비스 О 개인형서비스 mmpersonal Agent mmring, mmcallerid mmums, MMS. О 기업형서비스 mmconference mmgroupcommunication mmcentrex. О 호스팅 / 개방형서비스 컨텐츠기반통신 ecommerce 기반통신. 33/38 KRnet 2003

34 5. 단계별디플로이방안 1/3 통화 : VoP + MMoP О 1 단계데이터 : Presence/IM data 통화연결은 NGN SSW, 데이터는 Internet Server 특징 : 빠른적용가능. 다양한기존데이터서비스연계활용가능. 통화에대해서만과금 AS가 Presence Server (PS) 서비스접속을인증및중재 AS PS (Internet Server) SSW NGN 백본망 공중인터넷망 AGW 34/38 KRnet 2003

35 5. 단계별디플로이방안 2/3 통화 : VoP + MMoP О 2 단계데이터 : Presence/IM data 통화연결은 NGN SSW, 데이터는 NGN Server 특징 : 안전하고 QoS보장된데이터서비스가능. 통화및데이터과금 (AGW) 가능. AGW에패킷 usage count기능필요 AS PS (NGN Server) SSW NGN 백본망 AGW 35/38 KRnet 2003

36 5. 단계별디플로이방안 3/3 통화 : VoP + MMoP 데이터 : Presence/IM data О 3 단계 통화연결, 데이터연결모두 NGN SSW 특징 : 안전하고 QoS 보장된데이터서비스가능. 통화및데이터과금가능 (SSW). SSW 에서과금시, 데이터세션지속유지기능필요 (SSW 부하 ) AS PS (NGN Server) SSW NGN 백본망 AGW 36/38 KRnet 2003

37 V. 결언 О NGN 서비스환경은복합단말, 복합망상에서가능한모든서비스가가능 О NGN 서비스구조표준화가활발히진행 О NGN 생성기술은개방형인터넷기술기반 О KT-NGN 서비스비전 = 발전된통신서비스를통한고객의행복하고편리한삶 ^^ (2004~) 37/38 KRnet 2003

38 References [1] Michael Crowther, Telco service solution for a changing business and technology environment, BT exact tech. in the 8 th ICIN proceedings, pp. 9-14, [2] International Packet Communications Consortium(IPCC), Packet Communications Reference Architecture, April 2003, ver.2.0 [3] Bruno Chatras, NGN Functional Architecture, D432, ITU-T SG11, Geneva, [4] Oscar Mezquita, The ease use of OSA/Parlay APIs for Service Development, in the 8 th ICIN proceedings, pp , [5] Eurescom Project P1109, NGN: The services offering standpoint, [6] SIP 2003, Paris, 14 Jan /38 KRnet 2003

歯I-3_무선통신기반차세대망-조동호.PDF

歯I-3_무선통신기반차세대망-조동호.PDF KAIST 00-03-03 / #1 1. NGN 2. NGN 3. NGN 4. 5. 00-03-03 / #2 1. NGN 00-03-03 / #3 1.1 NGN, packet,, IP 00-03-03 / #4 Now: separate networks for separate services Low transmission delay Consistent availability