Seminar on ITU-T hot topics for Standardization (Mar del Plata, Argentina, 2 September 2009)

Transcription

1 Seminar n ITU-T ht tpics fr Standardizatin (Mar del Plata, Argentina, 2 September 2009) Functinal requirements f NGN including verall architecture Marc Carugi ITU-T SG13 WP2 c-chair and Q.3/13 Rapprteur Mar del Plata, Argentina, 2 September 2009 Internatinal Telecmmunicatin Unin

2 Outline ITU-T NGN standardizatin Intrductin elements, service bjectives and capabilities High level functinal requirements and verall architecture elements Sme key cre NGN areas Sme emerging NGN areas 2

3 13 ITU-T Recmmendatins n NGN basic cncepts published in July 2006 ITU-T NGN Release 1 practically cmpleted in January 2008 Mre advanced services/features (IPTV, FMC etc.) currently in prgress ITU-T (NGN GSI) ITU-T NGN standardizatin timeline NGN Wrkshp (Jul. 2003) FG-NGN (2004/5-2005/12) FG-IPTV (2006/4-2007/11) SG NGN Service Release 1 Release 2 requirements and Cncept 13 architecture SG 11 NGN Signaling prtcls Structure Signaling prtcls Release1 ETSI TISPAN End f 2003~early GPP IETF Release 6 ~ end f 2004 SIP standard RFC3261 (Jun. 2002) Release 7 ~ mid 2007 Release2 Early 2006 ~ mid 2008 Cmmn IMS Release 8 ~ end f

4 NGN definitin and basic features Definitin f NGN (Rec. Y.2001) A NGN is a packet-based netwrk able t prvide telecmmunicatin services and able t make use f multiple bradband, QS-enabled transprt technlgies and in which service-related functins are independent frm underlying transprt-related technlgies. It enables unfettered access fr users t netwrks and t cmpeting service prviders and/r services f their chice. It supprts generalized mbility which will allw cnsistent and ubiquitus prvisin f services t users. Target Standards areas Generalized Mbility Unrestricted Access Service-Transprt Independence QS-enabled Transprt Multiple Bradband Fixed/Mbile Cnvergence Open Access Interfaces Architecture and Open APIs Manageable Bradband 4

5 Next Generatin Services Frm tday s netwrks Services are typically vertically integrated Services require specific infrastructure cmpnents fr their delivery t NGN : flexible service creatin and prvisining Hrizntal Cnvergence: services are n mre vertically integrated Netwrk functins are cmpnentised Standard capabilities as service enabling tlkit Key bjectives in ITU-T NGN standardizatin Nt just a new vice netwrk A Service Level equal r better than in circuit-switched netwrks Services specified in terms f required capabilities Service definitins are nt an bjective like in legacy wrld But Public Interest Services are a special case Service Shift as cnsequence f NGN service vs transprt stratum separatin 5

6 NGN Release 1 service bjectives (Y.2000-series Sup.1 NGN Rel. 1 scpe ) Services expected t be supprted in NGN Release 1 PSTN/ISDN Emulatin services PSTN/ISDN Simulatin services Multimedia services Data cmmunicatin services (including VPNs) Public Interest Services NGN is nt intended t preclude access t the Internet It s a Prvider decisin which services will be actually deplyed ITU-T NGN-GSI currently wrking n NGN Release 2 Service scenaris, service and functinal requirements and capabilities, architecture extensins, mechanisms and prtcls High level Rel.2 Requirements have been cmpleted Rel.1 activity still nging (mainly n prtcls) NOTE: Release cncept under replacement by Capability Set cncept 6

7 NGN Release 2 service bjectives (Y.2000-series Sup.7 NGN Rel.2 scpe ) Services expected t be supprted in NGN Release 2 IPTV services Managed delivery services NID related services Services using tag-based identificatin Ubiquitus Sensr Netwrk services Additinal multimedia services Visual surveillance services Multimedia Cmmunicatin Centre services Enterprise services (NGN supprt f services fr Enterprises) Virtual Leased Line, Business Trunking, Hsted services Services at Hme (NGN supprt f services in hme envirnments) 7

8 NGN Requirements and Capabilities Y.2201: High level requirements and capabilities t supprt NGN Release 1 service bjectives apprved in April 07 Only netwrk capabilities (n user equipment capabilities) N requirements related t specific services Identified capabilities were mainly derived frm functinalities develped in varius SDOs and ready fr use at Rel.1 time N precise functinal requirements fr specific NGN entities, rather guidelines fr the NGN architecture in rder t supprt these capabilities and assciated requirements (detailed deliverables develped fr the varius functinal areas) Y.2201 Rev.1 (frmerly NGN Rel.2): High level requirements and capabilities fr ITU-T NGN frmal apprval in Mar del Plata Includes user related and service-specific requirements NOTE: each specific NGN realisatin may supprt an arbitrary set f services, thus requiring the implementatin f an arbitrary set f capabilities 8

9 The NGN capabilities identified in Y.2201 Transprt cnnectivity Cmmunicatin mdes Multicast Media resurce management Cdecs Access Netwrks, netwrk attachment User netwrks Intercnnectin, Interperability and Interwrking Numbering, naming, addressing Identific., authentic., authriz. Security Ruting Y.2201 Rev.1 QS OAM and Survivability Accunting and Charging Management Mbility handling Service enablers Open service envirnment Prfile management Plicy management PSTN/ISDN emulatin and simulatin Public Interest Services supprt Critical infrastructure prtectin Nn disclsure f inf acrss NNI Inter-prvider exchange f userrelated infrmatin Cntext management Identity management Cntent management IPTV services supprt capabilities Enterprise Netwrks supprt capabilities IPV6 supprt capabilities 9

10 Y.2012 Rel.1 : the initial basic functinal view f NGN Applicatins ANI Applicatin Supprt Functins & Service Supprt Functins Management Fu unctins End-User Functins Service User Prfiles Service stratum Netwrk Attachment Cntrl Functins Transprt User Prfiles Service Cntrl Functins Transprt Cntrl Functins Resurce and Admissin Cntrl Functins Other Netwrks Transprt Functins UNI Transprt stratum Cntrl Media Management NNI 10

11 Dimensins and sme key study areas in ITU-T SG13 ( Future netwrks including mbile and NGN ) Requirements and capabilities Architectures QS, Security and IdM Mbility Future Fixed FMC Mbile Cre NGN areas Emerging NGN areas Open Service Envirnment 3 rd Party apps and Web based IPTV services NID & Ubiquitus Sensr Netwrks Ubiquitus Netwrking NGN in Hme and in Vehicles Peer-t-Peer appraches Others Infrastructural Framewrks 11

12 IP-based mbility A variety f mbile and fixed terminals and their prfile management Legacy Terminals Legacy Terminals Custmer Netwrks NGN Terminals End-User Functins GW GW NGN functinal cmpnents: high level view (Y.2012 Rev.1) Service Stratum T. User Prfile Functins S. User Prfile Functins Access Access Transprt Netwrk Functins Functins Bradband access able t supprt high bandwidth service demands Applicatins Applicatin Supprt Functins and Service Applicatin Supprt Functins (ASF&SSF) Netwrk Attachment Cntrl Functins (NACF) Edge Functins Other NGN Service Cmpnents IPTV Service Cmpnent PSTN/ISDN Emulatin Service Cmpnent Mbility Mgt and Cntrl Functins (MMCF) Netwrk attachment IP Multimedia IP Multimedia Cmpnent &PSTN/ISDN Service Cmpnent Simulatin Resurce and Admissin Cntrl Functins (RACF) Cre Transprt Cre transprt Functins Functins Transprt Stratum "Service platfrm" fr agile and rich service prvisining Service Cntrl Functins IPTV services prvisining Evlutin scenari f PSTN and shrt-term slutin Re-use and adaptatin f 3GPP IMS t prvide multimedia services Other Netwrks A unified IP netwrk with imprved security and QS Brder gateways enabling secure interwrking 12

13 Sme cre NGN areas 13

14 NGN Architecture bjectives and IMS The advanced bjectives f the NGN Architecture Supprt f a cmprehensive set f services ver a unifying IP layer netwrk Transprt stratum supprt f a multiplicity f access netwrks and a variety f mbile and fixed terminal types Services separable frm transprt stratum int service stratum Services nt limited t thse prvided by the hme netwrk Services able t traverse multiple prviders netwrks IMS is a cre cmpnent f the NGN Architecture IP Multimedia Service cmpnent The capabilities f 3GPP IMS can be used by the NGN but sme extensins f 3GPP IMS specificatins are required IMS alne is nt sufficient fr the NGN Y.2012 NGN Rel.1 functinal requirements and architecture Y.2021 IMS fr NGNs NGN Rel.1 deliverable 14

15 Key NGN architectural challenges Applicatin-driven QS QS classes Explicit bandwidth selectin Mapping & cntrl frm Service t Transprt Flw awareness (mnitring, accunting) Mbility Seamless handver Fixed Mbile Cnvergence (FMC) Scalability Multicast Ubiquitus netwrking 15

16 Mbility multiple dimensins Users basic requirements Access frm a variety f envirnments with a variety f terminals with varying capabilities Glbal raming, ubiquitus and seamless slutins Mbility Service cntinuity Service discntinuity Seamless Handver Handver madicity Prtability Q.1706/Y

17 Limited Mbility capabilities in NGN Release 1 NGN Release 1 requires supprt f Nmadism The ability t change netwrk access pint n mving, withut maintaining service cntinuity T be supprted between netwrks and within a netwrk Tw types f mbility [Y.2201, Q.1706] Persnal Mbility: the user mves (between terminals) Terminal (Device) Mbility: the device mves (with its binded user) N new interfaces defined fr Release 1 Mbility Nmadism is the initial step twards Generalized Mbility and Fixed Mbile Cnvergence 17

18 Service cntinuity as step 2 f mbility [Y.2201 Rev.1] NGN supprt f service cntinuity is recmmended in Intra-AN and Inter-AN scenaris fr persnal and terminal mbility Implementatin levels may vary Fr vice services, service cntinuity required fr terminal mbility NGN is recmmended t allw adaptatin fr service cntinuity when users reqts and netwrk cnditins mismatch (e.g. (re)negtiatin f netwrk QS and terminal parameters (cdec)) Mbility radmap : an imprtant nging activity Wrking n a multi-dimensin matrix which includes the varius mbility features, mbility scenaris and existing slutin specificatins 18

19 Twards Fixed Mbile Cnvergence: functinal scenaris f cnvergence - Q.1762/Y.2802 Charging and Billing Functins Applicatins Applicatin /Service Supprt Functins Manageme nt Layer Applicati n Layer Cnvergence may be happen at different functinal levels Fixed etw rk Service Cntrl Functins Fixed access netwrk Service Cntrl Functins Mbile access netwrk Mbile etwrk Cntrl Layer Example f cnvergence at Applicatin/Service Supprt Functins level Y.2802: FMC characteristics, requirements, capabilities, scenaris Y.2803: FMC service using legacy PSTN/ISDN as fixed AN fr mbile users Y.2808: FMC with a cmmn IMS sessin cntrl dmain 19

20 Intercnnectin Intercnnectin at Netwrk t Netwrk Interface Between multiple NGN dmains, between NGN and ther netwrks Tw types f Intercnnectin between NGN dmains Cnnectivity-riented Intercnnect (CIx) is required (Y.2201) Simple IP cnnectivity, irrespective f interperability levels N service awareness, n specific requirements assurance Service-riented Intercnnect (SIx) is required (Y.2201 Rev.1) Services ffered with defined levels f interperability Surce fr figure: ETSI TISPA 20

21 NGN capabilities and specificatins fr Intercnnectin Intercnnectin capabilities (bjectives) ruting; signalling interwrking; numbering, naming and/r addressing interwrking; accunting and charging related infrmatin exchange; security interwrking; QS interwrking; user and terminal prfile infrmatin exchange; media interwrking; management interwrking; plicy management NNI deliverables develped in SG11 Q.3401 NGN NNI signalling prfile (prtcl set 1) services Q Nt an intercnnectin specificatin but useful in defining SIP-I 21

22 Evlutin twards NGN preserving the existing services In evlutin path t NGN, NGN Release 1 shall supprt: legacy terminal equipment (e.g. PSTN/ISDN phnes) PSTN/ISDN-like capabilities PSTN/ISDN Emulatin Frm the end user perspective, the NGN appears supprting the same types f services ffered by the existing PSTN/ISDN Legacy terminals are enabled t cntinue t use existing telecmmunicatin services while cnnected t NGN PSTN/ISDN Simulatin NGN terminals in an NGN netwrk are enabled t use PSTN/ISDNlike service capabilities But legacy terminals with terminal adaptatins may be used t Implemented ver IP-based cntrl infrastructure (e.g. using SIP) 22

23 Develpments cncerning Evlutin t NGN Generalities: Scenaris fr PSTN/ISDN evlutin t NGN: Y.2261 three Call Server scenaris (start frm Lcal Exchanges, start frm Transit Exchanges, ne-step) ne-step evlutin f cre netwrk t IMS xdsl Access netwrk evlutin t NGN Generalities n PSTN/ISDN Emulatin and Simulatin: Y.2262 tw types f adaptatin functins (ADF) fr legacy access equipment PSTN/ISDN Emulatin Tw appraches: Call Server (SftSwitch) based (Y.2271), IMS based PSTN/ISDN Emulatin architecture (Y.2031) PSTN/ISDN Simulatin Based n IMS capabilities (a.k.a. MMedia Telephny in 3GPP) Y.2211 (stage 1) has identified additinal service features Wrk is nging n prtcl aspects - SG11, alignment with 3GPP 23

24 Sme emerging NGN areas 24

25 Drivers fr advanced applicatin scenaris: the NGN service enablers These are a grup f capabilities (as named in Y.2201) prviding features fr specific r advanced services, and/r enabling access t, and/r handling f, specific infrmatin that they can prvide The currently identified service enablers largely inherit frm develpments f ther Standards Develpment Organisatins, mainly 3GPP (IMS) and Open Mbile Alliance Grup management Persnal infrmatin management Message handling Presence Lcatin management Push Device management Sessin handling Web-based applicatin supprt Data synchrnizatin 25

26 Reusable Capabilities : twards an pen service platfrm in NGN End Users 3 rd Parties NGN Prviders Generic cncept f ANI (Applicatin t Netwrk Interface) Applicatins Reusable capabilities Service envirnment NGN resurces Reusable set f Capabilities fr reduced service develpment csts Open service envirnment fr flexible and agile service creatin, executin and management Service platfrm cncept (NGN SDP) Rapid change is key fr satisfying the changing custmer needs New business pprtunities via an envirnment integrating applicatins and telecm infrastructure 26

27 Twards an pen service envirnment in NGN Open service envirnment key attributes Expsure f capabilities via standard applicatin netwrk interfaces Leveraging capabilities frm different netwrk dmains (Internet/Web 2.0, Bradcast Netwrks, Mbile Netwrks etc.) Prtability and re-usability f capabilities acrss netwrk dmains (e.g. frm the Internet t NGN, and frm NGN t the Internet) Flexible develpment f services (applicatins) and capabilities by NGN Prviders as well as by Applicatin Prviders (and End Users) Enabling interwrking with ther service creatin envirnments (recmmended fr supprt in NGN Release 1): IN-based service creatin envirnment (INAP, CAMEL, WIN, ) IMS-based service creatin envirnment Open service creatin envirnment (OSA/Parlay, OMA, ) Framewrk fr value added applicatins leveraging netwrk capabilities (COMMUNICATIONS-ENABLED APPLICATIONS) 27

28 Appraches fr an pen service envirnment in NGN Hw t pen Adpting a Service Oriented Architectures (SOA) framewrk frm the Infrmatin Technlgy wrld, and enhance it as apprpriate Telecm SOA Using enhanced Web Services (WS) as implementatin tl set f the Telecm SOA framewrk but ther tls (e.g. REST) are nt excluded What t pen (expsing via standard interfaces) NGN capabilities t Applicatins Telecm APIs NGN capabilities t ther NGN capabilities 28

29 Telecm SOA and enhanced Web Services: new challenges in the develpment f NGN standards Key values f a SOA framewrk Crss-platfrm and highly reusable Mst SOA implementatins identify Web Services as the means fr realizing a SOA But new requirements have t supprted fr a Telecm SOA Web Services enhancements are required, e.g. Carrier grade reliability and perfrmance Service traceability WS standards cnvergence and harmnizatin T a cmmn set f Telecm APIs reusable acrss different implementatins f NGN service platfrm 29

30 Initial ITU-T wrk items in the NGN service platfrm area ITU-T SG13 is increasing its activities in this area Y.2234: Open service envirnment capabilities fr NGN (Sep08) Y.OSE-arch OSE functinal architecture fr NGN (launch in Jan09) Y.NGN-SIDE-Req: Requirements fr NGN Service Integratin and Delivery Envirnment (launch in May09) Y.2212: Requirements f Managed Delivery Services (Jan08) Y.2232: NGN cnvergence service mdel and scenari using WS (Feb08) Y.2235: Cnverged web-brwsing service scenaris in NGN (Dec08) Deliverables based n past OCAF Fcus Grup activities (Dec06) Y.2901/Y Carrier grade pen envirnment mdel/cmpnents Other ITU-T activities in Telecm SOA and WS include M.3060: Principles fr NGN management (March06) (ITU-T SG4) SOA/WS related security aspects (ITU-T SG17) Middleware aspects fr IPTV and USN (ITU-T SG16) 30

31 New business mdels: 3rd Party services (an example frm Y.2212) NGN service cntrl capabilities can be made available thrugh ANI and via MDS by the NGN Prvider t 3rd Party Prviders and their custmers 3rd Party Prviders can then ffer enhanced services t their custmers Example f MDS Business Mdel 3 rd Party Y.2212 Prvider 3 rd Party Prvider Service Charge User/ Custmer Service Netwrk Capability Cnnectin Fee NGN Prvider <Current Business Mdel> Service Charge+ User/ Custmer Service+ Cst Netwrk Capability+ Cnnectin Fee <MDS Business Mdel> QS, Ruting thers NGN Prvider MDS A win-win situatin fr bth 3rd Party Prvider and NGN Prvider 31

32 Multimedia Services Over IP based netwrks Managed capabilities A key differentiatr f future NGN service fferings: IPTV Mre than TV distributin IP QS/QE, Security Interactivity, Reliability Scpe Of IPTV Key features f IPTV Supprtable by NGN Bi-directinal netwrks Real time and nn-real time service delivery A large spectrum f IPTV services and business mdels Current discussin abut a phased apprach f related standardizatin IPTV high level requirements specified in Y.1901 (nt NGN specific) Much wrk nging n IPTV ver NGN E.g. detailed requirements fr IPTV netwrk cntrl, business scenaris etc. 32

33 IPTV dmains and business mdels End-user Netwrk prvider Service Prvider Cntent prvider PDA Gaming Cnsle Music Statin Hme Cmputer Hme Office Phne Encders TV Prgrams Mvies Management Office Phne Office Cmputer TV VOD / Middleware Cnditinal access EAS These dmains d nt define a business mdel A Prvider may play in multiple dmains prvisining an actual service 33

34 IPTV Functinal Architecture Y.1910 Open interfaces t supprt multiple business mdels within an unified functinal architecture Tw appraches fr NGN supprt: nn-ims based IPTV, IMS based IPTV ITU-T is engaged in the standardisatin f interfaces between IPTV cmpnents 34

35 Netwrk aspects f Identificatin systems (NID) NID cmpnents: Tag (+ Sensr), Reader (Writer), Data prcessing system (lcal system, netwrk, server,..), Middleware Services using tag-based identificatin ID tag ID terminals Lcal / Glbal Netwrk Middleware Middleware Transprt Mgmt Warehuse Mgmt Order Mgmt Visibility System Prductin Scheduling POS Shelf Inventries Enterprise System 35

36 Services using tag-based identificatin ver NGN: reference architecture mdel (Y.2213) TTI Reader1 r-id UNI Applicatin supprt functins & service supprt functins ANI Tag id Reader2 Writer Others r-id w-id -id Netwrk attachment Service cntrl functins Service stratum Transprt cntrl functins ID terminal Transprt functins id identifier Transprt stratum r-id reader identifier w-id writer identifier NGN Scpe -id thers identifier TTI Tag Terminal Interface UNI User Netwrk Interface ANI Applicatin Netwrk Interface ID terminal Services are prvided t end users via the fllwing peratins: identifier reading identifier reslutin infrmatin access (frm ID terminal s pint f view) UNI 36

37 Twards the Internet Of Things: Ubiquitus Sensr Netwrks (USN) services U SN Services Disaster/crisis m anagem ent Structural health Lgistics, SC M m nitring Agricultural cntrl D isaster Surveillance M ilitary Field U SN Applicatins U SN Applicatins U-H ealth care Ubiquitus w eb services Cntext m deling and m anagem ent U SN M iddlew are U SN M iddlew are USN D irectry service M anagem ent Cntents m anagem ent Service rchestratin N G N Access Netw rk Access Netw rk Access Netw rk Access Netw rk Access Netw rk Access G atew ay Mbile RFID Reader RFID Reader U SN G atew ay Sensr nde U S N G atew ay Sensr N etw rks Sensr N etw rks Sensr N etw rks U SN G atew ay Sink nde NGN as flexible and scalable netwrk platfrm fr supprt f a large number f ptential applicatins A number f standardisatin areas t be prgressed (NGN capabilities, architecture, security, middleware etc.) 37

38 Ubiquitus netwrking as future target Enabling Any Service, Any Time, Any Where, Any Device peratins in NGN via enhanced capabilities Supprt f human-t-human, but als human-t-machine and machine-t-machine cmmunicatins PDA PC TV Human-t-Object Cmmunicatin Vehicle Hme Electrnics RFID tag Sensrs Camera Human-t-Human Cmmunicatin G Database, Web, applicatin server Object-t-Object Cmmunicatin Wearable PC Hme server, gateway Mbile Phne Human-t-Object Cmmunicatin Smart Card Telematics, Navigatin Device Medical Device Humans with Attached Devices Ubiquitus etwrking Objects (Remte Mnitring and Infrmatin Devices) 38

39 Thank yu fr yur attentin Questins? 39

40 Backup 40

41 NGN Recmmendatins: Y-series Framewrks and functinal architecture mdels Y.2000 Y.2099 Quality f service and perfrmance Service aspects: Service capabilities and service architecture Service aspects: Interperability f services and netwrks in NGN Numbering, naming and addressing Netwrk management Netwrk cntrl architectures and prtcls Security Generalized mbility Y.2100 Y.2199 Y.2200 Y.2249 Y.2250 Y.2299 Y.2300 Y.2399 Y.2400 Y.2499 Y.2500 Y.2599 Y.2700 Y.2799 Y.2800 Y

42 NGN Recmmendatins: Q-series General Q.3000 Q.3029 Netwrk signalling and cntrl functinal architecture Q.3030 Q.3099 Netwrk data rganizatin within the NGN Bearer cntrl signalling Signalling and cntrl requirements and prtcls t supprt attachment in NGN envirnments Resurce cntrl prtcls Service and sessin cntrl prtcls Service and sessin cntrl prtcls supplementary services NGN applicatins Testing fr NGN netwrks Q.3100 Q.3129 Q.3130 Q.3179 Q.3200 Q.3249 Q.3300 Q.3369 Q.3400 Q.3499 Q.3600 Q.3649 Q.3700 Q.3849 Q.3900 Q