Next Generation Networks, Service Oriented Architectures, and ...

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  • 1. First HUT – FOKUS IMS Workshop, Hanoi, Vietnam, June 2, 2008 Understanding the IP Multimedia System (IMS) in Face of g y ( ) Next Generation Networks, Service Oriented Architectures, and the Web 2.0 Prof. Dr. Thomas Magedanz TU Berlin / Fraunhofer Institute FOKUS, Germany Internet: www.fokus.fraunhofer.de/ngni Email: thomas.magedanz@fokus.fraunhofer.de Mobile: +49 171 172 70 70 1 T. Magedanz / N.Blum, Fraunhofer FOKUS, 2007 Agenda 1. Motivation for IMS as common control platform for converging networks – Business drivers: PSTN Emulation, FMC, Tripe Play, IPTV, Web 2.0 Telco Integration – The new value chain of convergence: Netcos, Service Cos, SalesCos – IMS Basics: Control (Intelligent Networks) + Internet (SIP) = the better Internet = IMS – IMS Architecture and Standards review – IMS vs. Service Delivery Platforms vs. Web 2.0 2. The need for open / independent IMS technology testbeds and toolkits – IMS Show stoppers - missing applications – Challenges of the telecommunications world – Lessons learned from the Internet 3. Fraunhofer FOKUS Overview – Fraunhofer Mission - high quality communications in face of convergence – The FOKUS R&D ecosystem - strategic cooperation is key y g p y – FOKUS R&D topics – The FOKUS open technology playground concept 4. FOKUS expertise and components for testbed set up around the globe – Getting started with IMS - The Open Source IMS Core and the Open IMS Playground – Integration of IMS with Web 2.0 - The Open SOA Telco Playground – Integration of IMS with IPTV = interactive TV - The Media Interoperability Lab – Integration of IMS with eGovernment - Towards innovative services for Citizens – Q&A 2 Page 1
  • 2. T. Magedanz / N.Blum, Fraunhofer FOKUS, 2007 About the Speakers Prof. Dr. Ing. habil Thomas Magedanz Thomas Magedanz (PhD) is professor in the electrical engineering and computer sciences faculty at the Technical University of Berlin, Germany, leading the chair for next generation networks (Architektur der Vermittlungsknoten – AV) supervising Master and PhD Students In addition, he is director of the “NGNI” division at the Fraunhofer Institute FOKUS, which also provides the national NGN/IMS test and development centre in Germany. Prof. Magedanz is one of the founding members of FOKUS (1988) and member of the management team. Furthermore he is principal consulant of Direct Link Consult e. V., a FOKUS Consulting spin off focussing on professional services, strategic studies and technology coaching. Prof. Magedanz is a globally recognised technology expert, based on his 18 years of practical experiences gained by managing various research and development projects in the various fields of today´´s convergence landscape (namely IT, telecoms, internet and entertainment). He acts often as invited tutorial speaker at major telecom conferences and workshops around the world. Prof. Magedanz is senior member of the IEEE, editorial board member of several journals, and the author of more than 200 technical papers/articles. He is the author of two books on IN standards and IN evolution. Since 2006 he is also extraordinary professor at the University of Pretoria and University of Cape Town in South Africa. 3 T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 Contact Prof. Dr.-Ing. habil Thomas Magedanz TUB Chair Next Generation Networks / Director FOKUS NGN Division magedanz@fokus.fraunhofer.de +49 171 172 70 70 +49 30 3463 7229 Kaiserin Augusta-Allee 31 14513 Berlin, Germany 4 Page 2
  • 3. T. Magedanz / N.Blum, Fraunhofer FOKUS, 2007 Agenda 1. Motivation for IMS as common control platform for converging networks – Business drivers: PSTN Emulation, FMC, Tripe Play, IPTV, Web 2.0 Telco Integration – The new value chain of convergence: Netcos, Service Cos, SalesCos – IMS Basics: Control (Intelligent Networks) + Internet (SIP) = the better Internet = IMS – IMS Architecture and Standards review – IMS vs. Service Delivery Platforms vs. Web 2.0 2. The need for open / independent IMS technology testbeds and toolkits – IMS Show stoppers - missing applications – Challenges of the telecommunications world – Lessons learned from the Internet 3. Fraunhofer FOKUS Overview – Fraunhofer Mission - high quality communications in face of convergence – The FOKUS R&D ecosystem - strategic cooperation is key y g p y – FOKUS R&D topics – The FOKUS open technology playground concept 4. FOKUS expertise and components for testbed set up around the globe – Getting started with IMS - The Open Source IMS Core and the Open IMS Playground – Integration of IMS with Web 2.0 - The Open SOA Telco Playground – Integration of IMS with IPTV = interactive TV - The Media Interoperability Lab – Integration of IMS with eGovernment - Towards innovative services for Citizens – Q&A 5 T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 Evolution towards Converged Networks Fixed PSTN Networks ISDN Information DSL Technologies Mobile SMS WiFi WiMax Networks WAP Analogue GSM UMA GPRS UMTS HSDPA FMC Converged Web 2.0 Triple WWW Portals NGN FTP email IPTV Play P2P IM VoIP Internet Quad Play iTV VoD Content Sharing Broadcast Cable Home Networks Networks 6 Page 3
  • 4. T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 The Internet has changed the Telco World • Network technology impacts Circuit switched evolution towards All-IP networks • Service technology impacts SIP-centered service platforms (IMS), Web 2.0 / SOA • Business Modeling impacts open services market, Subscription vs. Advertisment payments • Communication services in the future will be strongly integrated with information services – traditional boundaries will blurr • St Strong shift f hift from person t person communications t to i ti towards group d communications Communities • Combinational services centered around presence information and contexts of live I-centric Communications / human-centric communications • The result is a Convergence of formerly different domains into one 7 T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2006 Fixed Mobile Convergence 8 Page 4
  • 5. T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2006 Triple Play brings new Players in the Market • Among traditional network operators (CATV / Telco) new players (i.e. equipment manufacturers and service providers) have joined the race for multimedia / triple play revenues. • Purpose of value creation around basic communication services is mostly to maintain competitiveness and profitability • Increasing competitive pressure drives the transformation of the Telco industry. 9 T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2006 Triple Play + Mobile = Quadruple Play 10 Page 5
  • 6. T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 Seamless Services – The Net doesn’t Matter • Network diversity and network innovation pace has lead to network abstraction based on IP as common denominator • Connectivity Services versus Multimedia Services • Users are interested in services – thus end systems and Service Platforms matter Common Applications GSM and Services UMTS EDGE CDMA WLAN WiMax IP – based NGN POTS/ mobility-enabled ISDN Network Diversity Wireline is not a problem xDSL anymore due to other All-IP evolution 11 T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 Who owns the customer? Service Providers !!! • IPTV and Quadruple Play can be provided on different broadband networks • Physical networks become transparent due to y p decreasing IP connectivity (i.e. flat rates) Market entry barriers for service providers are vanishing • Users are interested in content and services irrespective of the network access The Value Chain splits horizontally • The roles of the fixed mobile and cable operators is fixed, changing Who will own the subscriber? For what services users will pay in the future? Is there a life for operators besides bit pipe provisioning? 12 Page 6
  • 7. T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 The Emerging Split of Operator Roles So far Operators offered network specific services, but in the future they need to focus their business activities as - NetCos = Bitpipe Providers - ServiceCos = Platform Providers / Enablers / Brokers - Sales Cos = Customized Application Providers with direct Market Access Fixed ISP TV Mobile CRM/POS- Convergence on marketing level Management SalesCos. SalesCos. SalesCos. (Bundling, Cross-selling) SalesCos. Convergence on SalesCos. Devices SalesCos. device level SalesCos. Customer Convergence on SalesCos. SalesCos. Care/Billing tariff level ServCo. Content Convergence on ServCo. Value-added service level Services Basic Applications Convergence on NetCos. NetCos. Access network level NetCos. Networks NetCos. Transport DSL WLAN WiMAX Cellular Networks 13 T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 ServiceCos: enabling Services over Bipipes • Today: Service Offers are linked to network technologies and thus have a limited reach (compare with over the top providers, i.e. Google) • Tomorrow Operators have to focus their business activities as either – NetCos: Bitpipe Business • Efficient provision of Bitpipes • Enablement of several ServCos – ServicCos: the „middleman“ • Operate on top of many different NetCos • Provision of service enablers to various SalesCos – SalesCos: facing the customer • Make use of ServiceCo enabling services for high eficiency • Concentrates on Content and Customers 14 Page 7
  • 8. T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 Internet impact on Telecoms: Service Diversity Differentiation and Efficiency is needed to survive NGN Service platforms / IMS has the potential to link Internet / web 2.0 and telecommunications Strategy of the broadening „T(elecoms)“: Broad top, sleek bottom Consumers Business Customers Communities Kids Youth Families Retired Small SMEs Big nterprises MNE Web 2.0 SalesCos. Marketing and Sales SalesCos. SalesCos. SalesCos. SalesCos. Services and SalesCos. Contents Modular Open Interfaces and APIs Fast Differentiation! Segment specific ServCo. S C Service Control (IMS) Efficiency! Effective Connectivity Control One Platform Operations optimized NetCos. Net Telco Infrastructur(operations) NetCos. NetCos. 2.0 partialy outsourced 15 T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 From Separate Networks To Converged Networks Today Future Single-service networks Multi-service network Se ce Service Enabler ab e Services S Service Network Content Content S S S Data/IP Networks ellular Mobile TN/ISDN API P Mobile CATV PLMN llular Ce PST P Cel Connectivity/ MGW Backbone Network MGW MGW MGW Access Networks Access, Transport & Switching Networks 16 Page 8
  • 9. T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 Convergence requires ONE Service Platform • Technically convergence means to unite the currently still seperated fixed and mobile network operator domains into a single one • Ths convergence is not about a NEW MARKET, but just the combination / migration of several previously existing markets into one common (and probably one smaller market)! • Anyhow, convergence is a chance (or a war) for operators to expand their coverage • Technical prerequisite is a common service delivery platform on top of fixed, mobile and IP-based networks • The IP Multimedia System (IMS) is defined for that • Started in 3GPP and 3GPP2 for the mobile domain, IMS today is also considered by ETSI, ITU-T, ATIS for the future (IP-based) fixed network as well (under the banner of NGN) • Thus IMS represents the common denominator service platform 17 T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 Evolution of Service Delivery Platforms SOA Web 2.0 Web/Application 3rd Party Server Application Multimedia Application Services Services Server (Enterprises / Content) SIP App. Server Parlay X OSA / Parlay NGN / IMS SIP OSA/Parlay/JAIN Gateway Interface IN / CAMEL AAA Services Server SIP IN Platform Se e Server INAP/CAP Diameter Interface Stored Program Control Services = Services VoIP GSM PSTN GPRS/UMTS 18 Page 9
  • 10. T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 IMS Architecture Principles • IMS does NOT standardise specific services, but enablers • BUT supports inherently multimedia over IP, VoIP, IM, presence (SIP) • IMS enables the flexibility in providing IP-based applications !! IP based Architecture • Horizontal Architecture defining a MMApps Applications “docking station” for applications • Defines service enabler capabilities Presence GLMS IMS • Build on existing IETF and telco SDP g standards and IMS Service Enablers HSS • Provides compared to standard internet RAN SGSN GGSN IP (!) Networks • Better security, Service based QoS, flexible charging and single sign on 19 T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2006 Stand alone vs. IMS Approach 20 Page 10
  • 11. T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2006 IMS Service Differentiation / QoS preposition 21 T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2006 IMS Charging value preposition Pricing based on transport Instant Messaging € 1 per MByte Chat Sessions Mobile GGSN Voice Communication Operator Video Communication Pricing based on services IMS € 0,02 per Instant Message Mobile € 0,10 per Minute for 128 kbit/s Video Operator GGSN € 2 per Month for Presence IMS charging provides operators to be more than “bit pipe” provider 22 Page 11
  • 12. T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2006 Complete IMS Security urity Authentication & Key Agreement (AKA) IMS Home IMS Secu (S-CSCF / HSS) Network Domain Security Security Mechanism Agreement IMS Visited Secure Secure SIP UA ISIM (P-CSCF) Apps Apps pp Integrity Protection Non-secure GPRS Domain Existing GPRS Access Apps Security 23 T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2006 Internet Control vs. Telecommunications Control Elective Elective No single point of failure Server Server User has control of all All services enabled by applications and choice protocols: From ftp to web of servers f Internet R R USER R R USER “Dumb Network” Services supported by ITU Intelligent Network Control: interfaces and central POTS, ISDN, BISDN, FR, ATM, H.323, MEGACO/H.248, GSM controllers User has little Central Central Central Control Control Control control USER SW SW SW SW SW SW USER UNI NNI NNI UNI 24 Page 12
  • 13. T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2006 Next Generation Network 3 Tier Architecture • Enhanced services for the next generation network will be enabled by a tiered architecture where “Application Servers” will provide an independent p p Application pp service layer for the execution of Server enhanced services and content • Session / Call Control based on advanced signaling protocols (i.e. SIP) is performed in Softswitches, or “Session Session Servers” Servers • Transport of signaling and content (incl. Voice) data will be done by Routers in the classical IP fashion. Dedicated Media Servers nodes, i.e. “Media Gateways” and Routers “Media Servers” are in charge for processing content data controlled by the Call Servers. 25 T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 IMS Core Infrastructure Functionality • Implementing generic functionality in the infrastructure is most economical !! SIP Session-/Service Control Architecture Messaging support Single-Sign-On User-Authentication Applications PoC Subscription Handling QoS/Media Authorization Presence GLMS IMS Signaling Compression and Charging Support and Correlation HSS g IMS Enabling Services Routing/Addressing Support Regulatory Service Support (e.g. LI) RAN SGSN GGSN Network Conferencing Support PSTN Interworking Support Docking Station for Service Enablers Docking Station for Applications 26 Page 13
  • 14. T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 IMS Motivation – Flexible Service Provision Provision of service enablers and dynamic service portfolio extension - Presence and Group server are considered key for the future - Application Servers can be control and/or content servers pp Messaging Server Presence Server Any new Application Content Server Call / Session Server Servers IP Multimedia Signalling (SIP) System (IMS) Transport (RTP) Packet Network (Core) Access Networks Access Networks (WLAN, UMTS, DSL) (WLAN, UMTS, DSL) 27 T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 3GPP IMS Architecture: IMS Core and Applications IMS Service IMS enabler HSS Application Framework Presence (AAA) Server IMS enabler Group Mgt Media P-CSCF I-CSCF S-CSCF S-CSCF Server MFRC + MFRP PDF Media IMS Core Gateway G t System SGW, MGCF, MGF Interworking with Access Networks Legacy Networks (WLAN, UMTS, DSL) Underlying IP Core Network (GSM, ISDN, DVB) Note: IMS Charging Architecture is not reflected on this slides = Diameter Interfaces to many entities 28 Page 14
  • 15. T. Magedanz / N.Blum, Fraunhofer FOKUS, 2007 IMS Major Components • The IMS is an Overlay Session/Service Control architecture on top of the packet domain (GPRS, UMTS, WLAN, DSL) based on IP technologies and IETF protocols (e.g. SIP, Diameter): – IMS Core C • S-CSCF (Serving Call Session Control Function) the IS anker point in the home network • I-CSCF (Interrogating Call Session Control Function) providing topology hiding • P-CSCF (Proxy Call Session Control Function) Entrypoint into IMS world • MS (Media Server) – Media Server hosting special resources • MGF (Media Gateway) for Interworking with legacy networks • PDF (Policy Decision Function) for QoS Control using Polícies (COPS) – IMS Application Layer • HSS (Home Subscriber System) for maintaining subscriber and AS profiles • AS (Application Server Function) for hosting applications • IMS enablers (e.g. Presence, Group Mgt.) are specific ASs with generic functions – And the IMS end system (IMS Client) plays an important role real multimedia / IMS services 29 T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 IMS Enablers = Reusable IMS Application Servers • IMS did not address the standardisation of specific application by purpose • Only major AS interfaces are defined = IMS is a „docking station“ for ASs! • Open Mobile Alliance (OMA) is supposed to do service specific standardistaion on top of IMS • Examples include Presence, Group Management, Instant Messaging (IM), Push to Talk over Cellular (PoC), etc. • Over time it become clear that there is a set of common servers, i.e. enabling servers IMS Enablers, which can be used in the implementation of more complex IMS services • Major enablers today to be used in IM, PoC and Group Video Calls, etc.: – XML Document Management System (XDMS) enabler for group configuration – Presence Server (PS) enabler for maintaining presence information – Device Management (DM) enabler is used for client system configuration,as ASs and enablers may need specific software on the client system! 30 Page 15
  • 16. T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 IMS integrates different Communication Services Pre-IMS Communication IMS Communication (“Service Islands”) (“Combinational Services”) Voice Voice / Video SMS TV SMS Instant Instant Messaging Messaging MMS MMS PoC From the usage of specific individual communication services ... ... to the integrated usage of different communication services centered around presence information and within groups ( communities) 31 T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 Overall NGN Architecture (ITU-T) Converged NGN (all-IP) 32 Page 16
  • 17. T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 NGN – An extensible Control Platform for IP P/ISDN VOIP, Videoconf., IPTV Web 2.0 Emulation IM, FMC, Presence What about other IP P/ISDN Applications IP Multimedia Streaming/IPTV Emulation Subsystem Subystem Converged Subsystem VoIP/Skype NGN (all-IP) Best Reusable Transport p effort Internet Support Systems PSTN 33 T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 NGN – An extensible Control Platform for IP P/ISDN VOIP, Videoconf., IPTV Web 2.0 Emulation IM, FMC, Presence What about other IP P/ISDN IMS IP Multimedia Streaming/IPTV ? Applications Emulation Subsystem Subystem Converged Subsystem supports all VoIP/Skype NGN (all-IP) Best effort Reusable Transport p Internet Support Systems PSTN 34 Page 17
  • 18. T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 NGN Global Standards Cooperation Open Mobile Alliance Leveraging IMS in wireline ITU- ITU-T NG Focus Group Starting Foc Group on NGN CJK Chin Japan Korea Agreement on reuse of 3GPP/3GPP2 IMS in co TISPAN –ETSI body on Next Gene Alliance for Telecommunication Industry Solutions Defining IMS services, e.g. Instant Messaging, Push-to-Talk Not strictly mobile oriented, driving wireline services also The Parlay Group / Java Community Process Near GN Integral to IMS architecture, define standard API frameworks g , na e ring agreement to use 3GPP/3GPP IMS cus American National Standards Institute T1.679 covers interworking between ANSI ISUP and SIP International Telecommunication Union Q.1912.SIP covers interworking between ITU-T ISUP and SIP H.248 for media control 3rd Generation Partnership Project 3rd Generation Partnership Project2 Project2 Define IMS network elements and infrastructure P2 ns eration Network omprehensive NGN plans for mobile environments Cablelabs / PacketCable Define IMS network elements and infrastructure for IPTV and Triple Play Internet Engineering Task Force Defines SIP, SDP and other protocols underlying IMS IMS is driving some of the work in IETF 35 T. Magedanz / N.Blum, Fraunhofer FOKUS, 2007 Overall TISPAN NGN Architecture Applications Based on 3GPP IMS IP Connectivity Other Multimedia Access Network Data Other Networks O Components … C t And related functionality Base PSTN / ISDN Emulation (SIP-I based) IP Multimedia ICF Component (Core IMS) (SIP based) IPTV Streaming Subsystem “Gq” Legacy PSTN / IS Legacy Terminals interface Terminals Network Attachment Resource and Admission GW Functionality Control Functionality NASS RACS SDN Legacy L GW “Go” Terminals interface TGW NGN Terminals Customer MBG Networks HGW IP Core transport Access Transport Network Network NGN Terminals 3GPP IP-CAN 3GPP Terminals 36 Page 18
  • 19. T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 NGN Application Layer – IMS as docking station SOA-based Seamless Multimedia Communication & Content Applications Web 2.0 CORBA / C++ / Java OMA Web Services Web 2.0 APIs OSA / Parlay / JAIN OSE Parlay X Mesh ups p Service Enablers SDP Plain VoIP Intelligent Unified NGN SIP Servers Networks / CAMEL session control AAA Servers Session Control system NGN Bearer Control with QoS IP Core Network Streaming SS Mobile Access Fixed Access Cable / TV Fixed and Mobile Networks Networks Networks Internet Access (GSM, GPRS) (PSTN/ISDN) NGN 37 T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 SOA, Telecommunications and Web 2.0 • Service Oriented Architecture (SOA) approach for the integration of – NGN architecture (IMS-based core network) – Application Enablers (OMA Service Environment) – 3rd party interfaces (Parlay X) – Web 2.0 Applications Web 2.0 Parlay X SOA OSE IMS 38 Page 19
  • 20. T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 A Service Delivery Platform enables Seamless Services SDP Service Creation SOA App1 App1 App2 App1 App3 App1 Exposure Portals Google CRM VASP Gaming OSA Enablers MRF Service Execution Service Execution Environment Exposure Parlay /X www Internet LBS (incl. Content OMA Content Environment Layer blogs Billing Delivery) Skype yp 3rd Party ASP Delivery Abstraction Layer DB OTA MRF icq Abstraction Layer HLR HSS Presence MMSC SMSC USSD Gw MediaGW tion & Maintenance Provisioning IVR Control Layer Control Layer IMS (MSC-Server, CSCF, AAA,..) Connectivity Layer fitsBackbone IP- IP- here Public network Private network Operat Mobile Access Fix Access Mobile Access Fix Access CDM Cabl GSM A Access Network Layer PSTN WiFi LAN Supervision UMTS e IMS Satellit GPRS e xDS WiFi DECT PBX EDGE L 39 The Role of SOA in Telecommunications • Unifying Architecture – Strategic enterprise alignment – Cost reduction, agile delivery, innovation • Service Delivery for IMS – IMS provides the session control infrastructure and network enables – In addition it needs the service delivery, service assembly – it needs applications. • IMS is being deployed incrementally – the reality is a mix of 2G/PSTN service control and IMS parts – The challenge for operators is to use their suite of intelligent service infrastructure. – SOA provides a solution to integrate the old with the new and compose applications across the infrastructure. infrastructure • Open platforms changes the delivery model for applications – Applications traditionally were provided by NEPs with limited internal development – SOA enables applications to be used along side operator driven developments. • OSS/BSS needs to be part of the application development – SOA promotes the inclusion of billing, provisioning and services management as an integral part of the application development 40 Page 20
  • 21. T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 Evolution of SOA Concepts in Telecoms OMA Policy Evaluation & Service Brokering Enforcement Mgt ( (SCIM)) Telecom Web Service APIs Parlay X Web 2.0 Open APIs OSA/Parlay/JAIN IP Multimedia System (IMS) S t Intelligent Network (IN) CAMEL Servlets (IN in Mobile) Internet Protocols 41 T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 Telcoms vs. Internet - IMS and Web 2.0 ? The Internet / Web 2.0 will recieve increasingly acceptance. Telcos have to learn. Web 2.0 Telco 2.0 – with IMS ? User generated contend Telcos have to learn f from internet Peer to peer traffic Differentiation based on customer expectations Extreme market segmentation Fast innovation at service level Social networks 3rd Party Enabling, Service Brokerage Communities „Long Tail“ Efficient and low cost „Production“ Speed: 1 Additional Differentiation by: Creator Always best connected Instant Provisioningg 10 Synthesizer Single User Identity (Identity Broker) Fast Single i Si l sign on innovations 100 Consumer Real Presence Information Billing, cash collection, clearing Plus: inreasing M2M communications Many more services, but much less Grid Computing revenues per services “Communicating Cars” More customers, but less ARPU … 42 Page 21
  • 22. T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 Import and Export of „Services Enablers“ Web 2.0 World Players and Services (Google Maps, YouTube, RSS Feeds, etc.) • Re-use what is publicly available Import • Create recognised user interfaces of Export Web APIs of Telco • Resell available capabilities Enablers • Enable value added services Service Brokering Telco 2.0 Enablers (Calls, Messaging, QoS, Charging, Identity Mgt., Security) Network Abstraction 43 T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 Web-based Telco Enabler Exposure Examples • British Telecom´s 21c Web SDK based on extended Parlay X Web Services based interfaces (http://web21c.bt.com/) – New possibility of defining user specific call flows in XML for user-specific enabler orchestration – Authentication, conference call, inbound SMS, messaging, voice call • Orange Partner API based on Web Services (French market only) and XML-RPC (http://www.orangepartner.com) ( p g p ) – Authentication, Personal Calendar, Personal Contacts, Personal Messages, Personal Photos, Personal Profile – SMS, Email, – Web-based widgets (bubbletop dev platform) 44 Page 22
  • 23. T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 Web-based Telco Enabler Exposure Examples 2 • T-Online Open Developer Forum based on Web Services and XML- RPC (http://developer.telekom.de) – official start in Q3/4 2008 – Voice Call, send SMS • Sipgate API based on XML-RPC (http://www.sipgate.de/user/download_api.php) – German VoIP ISP – Voice call, send SMS, send Fax – Billing data, call lists 45 T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2005 SOA Service Broker Workflow based Telco / Web 2.0 service compositon and simulataneous integration of composed services into the B/OSS infrastructure with the aim of – reduction of time to market through automation of the service lifecycle: • service creation / composition • service deployment • service activation • service fulfillment • service assurance • service billing – reduction of opex through: • autonomic mechanisms • closed control loops • Policy based Management 46 Page 23
  • 24. Sebastian Wahle – Fraunhofer FOKUS – 2008 Putting IMS in the SOA/SDP context 47 T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 How should Operators use IMS and NGN ? The Question of how to survive: Efficiency vs. Innovation PSTN Reloaded vs. Programmable Secure Multimedia Internet Traditional PSTN business model Closed SDP + “PSTN reloaded” l d d” closed product Device Carrier controls experience Architecture Carrier controls value chain complete PSTN NGN with „IMS“ inside – hidden Proprietary One dominant (IMS) Control monolithic outside capabilities business model Instable balance, high sensitivity against disruptions Carrier defines Carrier and business model shifts business model Intranet/VPN Open SDP + “Programmable Internet” Value Added Device Services open product Architecture experience Competition on content & service areas, new entrants Call Handling Open IMS Signaling & IN exposure of (Control) Exploitation of innovation capabilities Robust eco system, based Internet upon partnering TDM-Transport 48 Page 24
  • 25. T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 Any Questions? 49 T. Magedanz / N.Blum, Fraunhofer FOKUS, 2007 Agenda 1. Motivation for IMS as common control platform for converging networks – Business drivers: PSTN Emulation, FMC, Tripe Play, IPTV, Web 2.0 Telco Integration – The new value chain of convergence: Netcos, Service Cos, SalesCos – IMS Basics: Control (Intelligent Networks) + Internet (SIP) = the better Internet = IMS – IMS Architecture and Standards review – IMS vs. Service Delivery Platforms vs. Web 2.0 2. The need for open / independent IMS technology testbeds and toolkits – IMS Show stoppers - missing applications – Challenges of the telecommunications world – Lessons learned from the Internet 3. Fraunhofer FOKUS Overview – Fraunhofer Mission - high quality communications in face of convergence – The FOKUS R&D ecosystem - strategic cooperation is key y g p y – FOKUS R&D topics – The FOKUS open technology playground concept 4. FOKUS expertise and components for testbed set up around the globe – Getting started with IMS - The Open Source IMS Core and the Open IMS Playground – Integration of IMS with Web 2.0 - The Open SOA Telco Playground – Integration of IMS with IPTV = interactive TV - The Media Interoperability Lab – Integration of IMS with eGovernment - Towards innovative services for Citizens – Q&A 50 Page 25
  • 26. T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 IMS - One Language but different Dialects The scope of 3GPP should be extended to include the requirements coming from other communities. A mechanism should be put in place to ensure efficient requirements capture. 3GPP should be responsible for producing one set of IMS specifications that satisfies these requirements. It is expected that these new arrangements will be put in place during 2007. 51 T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 IMS Adoption Inhibitors 52 Page 26
  • 27. T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 IMS Show Stopper No.1 Today – The IMS Client 53 T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 Show Stopper No.2: IMS Development Kits 54 Page 27
  • 28. T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 IMS Introduction Challenges – IMS Integration Challenges • Core Network, SCE&SDP, OSS/BSS, Charging System Applications SCE and SDP Infrastructure ? OSS / Charging BSS ? IMS ? System ? Core Network Infrastructure 55 T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 Problem: IMS fells onto segmented Organisations 56 Page 28
  • 29. T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 How competes IMS with the Web2.0 P/ISDN VOIP, Videoconf., IPTV Web 2.0 Emulation IM, FMC, Presence What about other IP P/ISDN IMS IP Multimedia Streaming/IPTV ? Applications Emulation Subsystem Subystem Converged Subsystem supports all VoIP/Skype NGN Best (all-IP) effort Reusable Transport p Interne Support Systems t PSTN 57 T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 IMS vs NON-IMS Applications 58 Page 29
  • 30. T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 Web 2.0 = Communities and new User Experience 59 Porter´s Five Major Market Forces Michael E. Porter: "How competitive forces shape strategy”, Harvard Business Review, Vol. 57, Issue 2, pp.137- 145, March-April 1979 60 Page 30
  • 31. M. Porter´s Five Forces within the Telco Market Bargaining Power of Suppliers: Consolidation in the vendor market - Consolidation in the operator market - Threat of New Entrants: Vendor lock vanishes - Absolute barriers: low investment costs of ISPs - Exclusionary barriers: deregulation - Strategic barriers: large customer base + high potential of incumbents to build strategic barriers + 61 T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 Open Source in Telecommunications • Lessons learned from the Internet: Open Source software is good and brings innovation as the developer base is huge compared to closed software developments – Examples: Linux, Tomcat, Eclipse, MySQL … • In face of decreasing ARPUs and increasing customer demands open source software becomes attractive in the telecommunications field as well • VoIP and open standards are an excellent starting point: – for PBXes (FOKUS SIP Express Router (www.sip-router.org), ( p ( p g) Asterisk (www.asterisk.org), SIPX (www.sipfoundry.org/sipX)) – SIP Servlets (JSR 116) – JAIN SLEE platform (Mobicent project) 62 Page 31
  • 32. T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 While the VoIP lists many Open Source Projects … – General directories • PJSIP.org (www.pjsip.org/links.htm) • SIPf SIPfoundry ( d (www.sipfoundry.org) i f d ) – SIP Proxies (SER, OpenSER, sipX …) – SIP user agents • Windows (SIP Communicator, …) • Linux (Kphone, Linphone, Ekiga …) • MacOS X (FreeSWITCH …) ( ) – Test tools (SIPp, SIPbomber …) • …there are NO IMS specific Open Source projects so far 63 T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 SER – Facts and Usage – Each CSCF implemented as a SER module – SER = SIP Express Router • a high-performance, carrier-grade, open source, configurable SIP server written in C • ported to Linux (PC, iPaq) and Solaris (Sun) • throughput thousands of CPS (calls per second) on a dual-CPU PC (capacity needed to cover San Francisco’s Bay Area) and hundreds of CPS on Compaq iPaq • support for both IPv4 and IPv6 • small footprint size: 300k core, all common modules around 600k • extended flexibility through script-like configuration if (method==“INVITE” || method==“SUBSCRIBE” || • Usage example: method==“MESSAGE”) { if (!P_is_registered(“open-ims.org”)){ – Excerpt from the Proxy-CSCF sl_send_reply(“403”,”Forbidden – You must register first”); configuration file break; – steps are applied in } order in the routing P_add_P_Charging_Vector(); script: P_add_P_Visited_Network_ID(“Visited Network Number 1”); } 64 Page 32
  • 33. T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 Beyond SER – What is needed for IMS • The SIP sessions in IMS need various 3GPP specific extensions compared to todays VoIP infrastructure – P-Charging headers (e.g for charging, asserting identities, …) P Charging – subscription to registration events in other SIP routers • set-up of IPsec secured up and downstream channels based on authentication keying material • Ability to communicate with a centralized user repository via the Diameter protocol – tight integration of a Diameter stack – perform DB look-up • Ability to dynamically apply filter rules for SIP traffic on a per-user basis – Application of initial Filter criteria in the Serving Call Session Control Function 65 T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 Beyond SER - The FOKUS OPEN SOURCE IMS Core • A version of the Open IMS Core (OSIMS) is currently being developed and was already successfully tested with commercial IMS products. – provides first time implementations of core IMS components • Call Session Control Functions • Home Subscriber Server – offers an Open Source IMS platform to make use of the ISC interface – can act as a tool for IMS services proof-of-concept – allows to test alpha/beta versions of commercial IMS products – does not intend to compete with carrier grade developments but wants to create an Open IMS community and to accelerates IMS adoption – This software is for establishing IMS testbeds only, not for implementing commercial IMS systems! – Note: Users have to check potential IMS patents and standards licenses! 66 Page 33
  • 34. T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 FOKUS OSIMS Download … • > 40.000 visits • > 13.000 unique visitors • Approx. 150 visitors/day • Region breakdown Asia Americas Europe 67 T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 The Role of Open Testbeds • Network convergence and the new multimedia servce world is a subject of huge complexity • Required infrastrucutre is expensive • The IP Multimedia System (IMS) becomes of fundamental importance for unifying the seamless multimedia applications delivery above several network types • Operator specific or vendor specific testbeds are not sufficient for addressing this complex market, as they are limited in technology exploitation and business models and likely will not address the needs of end users adequately ( technology push model) • Learning from the internet, a huge number of application developers acting on an open infrastructure (the internet) is needed to enable succesful market driven services ( technology p model) gy pull ) • Thus open testbeds are key for exposing the network variety and complex service platforms to an open set of developers and to provide a • Adequate software toolkits are of help to start working without a testbed first • The testbed infrastructure provides the technological basis for early platform component testing and applications prototyping and thus interoperable solutions and vendor independence 68 Page 34
  • 35. T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 Getting started with IMS – An IMS Testbed • Operators and vendors are challenged strongly by the ongoing convergence (VoIP, FMC, Triple Play, Internet multimedia / web 2.0) • IMS is a complicated subject due to convergence domains • Success of IMS will depend strongly on open / interoperably solutions and many niche market services • Instead of deciding for one or two vendors and/or integrators the establishment of a local IMS/NGN testbed enables all players to gain early insight into the IMS • Currently many international testbeds are under development y y p • Testbeds and related tools allow to engage all players of the emerging convergence ecosystem at an early stage to develop many and really demanded services • Universities could be part of this approach to educate staff as soon as possible 69 T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 Distributing the IMS Playground • Since ist opening in 2004, there has been huge interest in the IMS Playground concept • Many operators, integrators, and vendors around the world have used the IMS playground facilities (infrastructure and staff expertise) • As this demand is increasing, FOKUS has decided to distribute the Open Source IMS core system for free, allowing operators, integrators, vendors as well as research organisations and universities to setup their own IMS testbed • Open Source Core can be enhanced by local partner components and own d developments l t • Optionally, FOKUS add on components and professional services allow for fast testbed set up 70 Page 35
  • 36. Sebastian Wahle – Fraunhofer FOKUS – 2008 FOKUS Open IMS Playground Concept 1 Free Download Universities Platform & R&D C t Centers NGN Open NGN Open Testbeds NGN Open Testbeds Testbeds Cooperation FOKUS IMS Components + Industry IMS Components Operators 2 & Vendors Industry IMS Testbed Industry Testbeds IMS Testbed Industry Testbeds IMS Testbed Testbeds IMS Testbed Remote Testbeds Local Operator–specific Testbeds at FOKUS 71 T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2007 Towards your own IMS Testbed – we can help! • Train the relevant staff on general IMS concepts and technologies – 2-3 day onsite tutorial for all people • Install Open Source IMS Core System – Train the related technical staff onsite and optionally at FOKUS – Obtain remote support for 12 month and more • Optionally extend the IMS Core by additional components (IMS Client, Application Server, demo applications, add on modules, etc.) • Optionally interconnect the IMS testbed with the FOKUS IMS playground to get access to the most recent demos and vendor components t • Optionally setup remote testbeds at relevant local Universities to start innovation from there • Optionally obtain customisation of components from FOKUS • Develop own extensions and components locally • Develop a common roadmap of developments with FOKUS 72 Page 36
  • 37. T. Magedanz / N.Blum, Fraunhofer FOKUS, 2007 Agenda 1. Motivation for IMS as common control platform for converging networks – Business drivers: PSTN Emulation, FMC, Tripe Play, IPTV, Web 2.0 Telco Integration – The new value chain of convergence: Netcos, Service Cos, SalesCos – IMS Basics: Control (Intelligent Networks) + Internet (SIP) = the better Internet = IMS – IMS Architecture and Standards review – IMS vs. Service Delivery Platforms vs. Web 2.0 2. The need for open / independent IMS technology testbeds and toolkits – IMS Show stoppers - missing applications – Challenges of the telecommunications world – Lessons learned from the Internet 3. Fraunhofer FOKUS Overview – Fraunhofer Mission - high quality communications in face of convergence – The FOKUS R&D ecosystem - strategic cooperation is key y g p y – FOKUS R&D topics – The FOKUS open technology playground concept 4. FOKUS expertise and components for testbed set up around the globe – Getting started with IMS - The Open Source IMS Core and the Open IMS Playground – Integration of IMS with Web 2.0 - The Open SOA Telco Playground – Integration of IMS with IPTV = interactive TV - The Media Interoperability Lab – Integration of IMS with eGovernment - Towards innovative services for Citizens – Q&A 73 Page 37