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Architectural Overview of ITU-T NGN (including Future Vision)

Architectural Overview of ITU-T NGN (including Future Vision). WORKSHOP ON NEXT GENERATION NETWORKS AND APPLICATIONS (Athens, Greece, 8 May 2009). Chaesub Lee Chairman of ITU-T SG 13. Athens, Greece, 8 May 2009. Content. NGN Architectures IPv6 NGN Future Vision

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Architectural Overview of ITU-T NGN (including Future Vision)

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  1. Architectural Overviewof ITU-T NGN(including Future Vision) WORKSHOP ON NEXT GENERATION NETWORKS AND APPLICATIONS (Athens, Greece, 8 May 2009) Chaesub Lee Chairman of ITU-T SG 13 Athens, Greece, 8 May 2009

  2. Content • NGN Architectures • IPv6 NGN • Future Vision • NGU(Ubiquitous)N(Networking) • Conclusion

  3. 1. NGN Architectures Definition of NGN 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. ITU-T Rec. Y.2001

  4. 1. NGN Architectures NGN in 4 words… • by Fixed • by Mobile • by Wireless NGN = Broadband Managed IP Network • for Services • for Businesses • for Players • for Users

  5. 1. NGN Architectures Key Principles of NGN • Open architecture: open to support service creation, service updating, and incorporation of service logicprovision 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.

  6. Applications ANI Application Support Functions & Service Support Functions Service User Profiles Service Control Functions Service stratum Transport User Profiles Management Functions Network Attachment Control Functions End-User Functions Resource and Admission Control Functions Other Networks Transport Control Functions Transport Functions UNI NNI Transport stratum Control Media Management Note: UNI/NNI/ANI are not meant to represent any specific interfaces. 1. NGN Architectures NGN architecture overview (Rec. Y.2012)

  7. intra- domain inter- domain Other NGNs 1. NGN Architectures Resource and Admission Control Functions Service Control Functions Service Stratum Rs Transport Stratum Rp Rd Policy Decision Function Transport Resource Control Function Network Attachment Control Functions Ru Ri Rt RACF Rc Rn Rw Transport Enforcement Function Policy Enforcement Function Transport Functions RACF • Augments native transport QoS support • Preempting transport congestion at the servicecontrol layer • Protecting ongoing premium traffic • Policy Decision Function • service facing, transport independent • Transport Resource Control Function • service independent, transport dependent, network-segment specific • Policy Enforcement Function • typically part of border transport elements

  8. 1. NGN Architectures High Level Requirements ofNACF • Dynamic provision of IP address and other user equipment configuration parameters (e.g. using DHCP). • User authentication, prior or during the IP address allocation procedure. • Authorization of network access, based on user profile. • Access network configuration, based on user profile. • Location management.

  9. 1. NGN Architectures Functional Architecture ofNACF NAC-FE (Network Access Control Functional Entity) AM-FE (Access Management Functional Entity) TLM-FE (Transport Location Management Functional Entity) TAA-FE (Transport Authentication and Authorization Functional Entity) TUP-FE (Transport User Profile Functional Entity) HGWC-FE (Home GateWay Configuration Functional Entity) AR-FE (Access Relay Functional Entity)

  10. Applications Service Stratum Application Support Functions and Service Support Functions T. User Profile Functions User Application Functions Profile Functions Service Control Functions S. User Profile Functions Other NGN Service Components PSTN/ISDN Emulation Service Component GW GW IP Multimedia Component IP Multimedia Service Component &PSTN/ISDN Simulation Other Networks Other Networks Legacy Terminals GW GW Network Attachment Control Functions (NACF) Resource and Admission Control Functions (RACF) Network Access Attachment Functions Legacy Terminals Access Transport CustomerNetworks Functions Core Transport Functions Access Network Functions Core transport Functions Edge Functions NGN Terminals Transport Stratum End-User Functions * Note: Gateway (GW) may exist in either Transport Stratum or End-User Functions. 1. NGN Architectures Service delivery platform making use of NGN easily Key Features of NGN Functions Evolution scenario of PSTN and short-term solution A variety of mobile and fixed terminals and their profile management targeting at FMC Re-use and adaptation of 3GPP IMS to provide multimedia services A unified IP network with improved security and QoS Border gateways enabling secure interworking Media processing to assist content delivery Broadband access able to provide IPTV

  11. 1. NGN Architectures Definition of IPTV IPTV is defined as multimedia services such as television/video/ audio/text/graphics/data delivered over IP based networksmanaged to provide the required level of QoS/QoE, security, interactivity and reliability More than TV distribution • Multimedia Services • Over IP based networks • Managed capabilities Scope Of IPTV IP QoS/QoE, Security Interactivity, Reliability

  12. 802.xx Access xDSL Domain 2DiffServ Domain 3MPLS-TE Domain 1IntServ Domain 4Over-Prov Cable 2G/3G Wireless Multi-Service Packet Transport Integrated QoS, Traffic control, Security, Multi services etc. NGN 1. NGN Architectures NGN as an Infrastructure for IPTV TV QoS, Traffic control, Security, X-casting, Accounting etc. IP

  13. 2. Why need IPv6 based NGN 2. IPv6 NGN Relationship between NGN and IP • NGN, by definition, is identified an infrastructure using packet technologies. • There is no specific mention which packet technology NGN should use, but generally assuming IP as a dominant packet technology today. • There are also no specific statement to specify the version of IP such as ‘version 4’, ‘version 6’ or ‘version 9,’ but most parts of NGN related ITU-T RECs are mainly assumed ‘version 4’ • ITU-T has been initiated the study on ‘Impacts of IPv6 into the NGN’ which looks for the usage of IPv6 features into the NGN. • ITU-T SG 13 Q.7 has been developed 4 draft RECs on IPv6 based NGN.

  14. 2. Why need IPv6 based NGN 2. IPv6 NGN IPv6 Drive • Ubiquitous network • Grid networking • Mobile computing • Integration of Wireless and Wireline • Home Appliances • Peer-2-Peer applications • Virtual Private Networks • Multi-user gaming • Internet-enable new devices • Military applications

  15. 1. Key Feature of IPv6 2. IPv6 NGN IPv4… it looks like…

  16. 1. Key Feature of IPv6 2. IPv6 NGN Possible solutions • Lack of IP addresses: efficient use of v4 but move to v6 • Reliability • Improve bandwidth: xDSL, Optics etc. • Managed Routing: MPLS etc. • Quality of Service: Managed by SLA, Session based • Security: being developed now but intrinsic difficulties • Mobility: Mobile/Wireless accesses, Mobile IP • Configurability: Auto-configuration functions

  17. 4. Requirements and Architecture 2. IPv6 NGN Requirements of IPv6 based NGN • General requirements of IPv6–based NGN are identified requirements which influenced by IPv6 features • IPv6 based NGN shall share NGN R1 requirements generally • Further requirements according to IPv6 features identified as IPv6 requirements • IPv6 related requirements would be incorporated into NGN R2 requirements General Requirements of IPv6 based NGN • IPv6 based NGN shall accommodate the IPv6 addressing schemes. • IPv6-enabled FEs should differentiate the control information from the IPv6 packets. • IPv6-based NGN shall support the address transition and interworking without affecting the service provided to users. • IPv6-based NGN shall support the IPv6 extension headers and options.

  18. 3. Definition and Scope 2. IPv6 NGN Scope of IPv6 based NGN

  19. 4. Requirements and Architecture 2. IPv6 NGN Relationship with other networks

  20. 3. Future Vision Overall FutureDirections

  21. 3. Future Vision Clue for the FuturePreparation Future should direct to the Convergence • Vision: Any Time, Any Where, Any Services and Any Devices • FMC should be the 1st instantiation • 2nd should be the IPTV • Any information/services over any transport infrastructures: VoDSL, TVoMobile, etc. Convergence classifies into following: • Internal Convergences (within a industry): FMC, IPTV and others • External Convergences: between/among different industries, e.g., Telematics/ITS, USN, e-Health, Networked Robotics and others

  22. 3. Future Vision The vision of ubiquitous networking Services on the Convergences • Always on with Any devices • Anytime, anywhere and in any form • Voice and multimedia • Self service, intuitive • Simple for the end user • Secure, trusted and reliable

  23. 3. Future Vision Extension of “Quality of Service” Meaningful QoS over NGUN Services over ‘Connecting to Anything’ Quality of Mobility Quality of Media Quality of Personalization Quality of Security • RT Mobility control • Service Continuitycontrol • Security support • End-End QoS • QoS Monitoring • Service Policy handover • One-stop Service • Service AAA • Personalized serviceOpen/Control • Network AAA;Terminal, User,Mobility, Access etc. Need further study in more details

  24. Full Converged MM Terminal Radio/Wireless Spectrum: fi Wave Length: λi 3. Future Vision Physical Communication Infrastructure

  25. Mobile Phone Nr Fixed Phone Nr User Id: Earth-Korea-Man:LeeChaesub-19yy-mm-dd WiFi/WiBro Id - Certified by UN - Cable/IPTV Id Internet Id 3. Future Vision Logical Communication Infrastructure

  26. Fixed Phone Mobile Phone One Integrated Bill WiFi WiBro Internet Cable/IPTV 3. Future Vision Business Communication Infrastructure

  27. Customer ID Comm. ID Service ID Content Owner ID Mobile Phone Nr Provider ID Family 1 Media ID Fixed Phone Nr Session ID TCP/UDP Port ID WiFi WiBro Id Family 2 IP Address ATM/Ethernet ID Cable/ IPTV Id Family 3 MAC ID E.164 ID Internet Id Line ID Family 4 3. Future Vision Key theme of Future Control Plane: Identity Processing User ID User Id: Earth-Korea-Man:LeeChaesub-19yy-mm-dd - Certified by UN -

  28. 3. Future Vision Key theme of Future Management Plane: ABC Processing Accounting: Set of functions required for Usage Metering, Charging and Billing (ITU-T Rec. Q.825) Billing: 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) Charging: The set of functions needed to determine the price assigned to the service utilization (ITU-T Rec. Q.825) D 4 4 3 3 C 2 2 B 1 1 A Int. Bill (1 or 2) : User Conv. Billing and Bill Providers Family Charging Family Account

  29. 4. NGU(Ubiquitous)N(Networking) Vision and Goals of NGUN Vision • Everything of value is connected to the network • Physical mobility & Service mobility Goals • Widespread interconnection of computing and communication devices • Pervasive networks that include both wireline and wireless segments • Mobile-to-fixed; mobile-to-mobile architectures • Includes public and private information spaces • Embedded intelligence, anywhere and anytime

  30. 4. NGU(Ubiquitous)N(Networking) Key Requirements for NGUN • More connectivity for whenever, whoever, wherever, whatever, etc; • More realityfor subconscious connectivity to provide connectable real world environments; • More intelligencefor innovative communication to accelerate value creation.

  31. 4. NGU(Ubiquitous)N(Networking) Definition of Ubiquitous in ITU-T Temporary definition in ITU-T Draft Rec. Y.NGN-UbiNet:‘Overview and Principles for Ubiquitous Networking in NGN’ “The term used for networking capabilities to support various classes of applications/services which require “Any Services, Any Time, Any Where and Any Devices” operation using NGN enabled capabilities. This networking capability should support human-to-human, human-to-object (e.g., device and/or machine) and object-to-object communications.”

  32. 4. NGU(Ubiquitous)N(Networking) Four Key Technology Enablers • Tagging Things: RFID • enabling real-time identification and tracking • Sensing Things: Sensor technologies • enabling detection of environmental status and sensory information • Thinking Things: Smart technologies • building intelligence into the edges of the network • enabling smart homes, smart vehicles etc • Shrinking Things: Nanotechnology • making possible the “networking” of smaller and smaller objects (more powerful?!)

  33. 4. NGU(Ubiquitous)N(Networking) Basic conceptual Model of NGUN Home Electronics Human-to-Object Communication Sensors PC TV Vehicle RFID tag Camera PDA NGN Database, Web, application server Object-to-Object Communication Human-to-Human Communication Home server, gateway Wearable PC Smart Card Telematics, Navigation Device Human-to-Object Communication Mobile Phone Medical Device Objects (Remote Monitoring and Information Devices) Ubiquitous Networking Humans with Attached Devices

  34. 4. NGU(Ubiquitous)N(Networking) Technologies for NGUN Ultra-small One-Chip Components, RFID, Sensors, Smart Things New PDA’s for Ubiquitous Environments, Digital Home Appliances, Wearable Computers IPv6, Security, Seamless Network, QoS over Heterogeneous Networks, Sensor Networks Devices Network Applications Ubiquitous Networking Contents, Services Personalized Services, Content Distribution, Steaming Data Distribution, Digital Rights Management High Performance Computing, 3G-2-4G, ISO Standards Infrastructure Impacts Ubiquitous Society, Mobility vs. Ubiquity, Business Models, Government Regulations

  35. 4. NGU(Ubiquitous)N(Networking) Functional Architecture of NGUN based on NGN

  36. 4. NGU(Ubiquitous)N(Networking) Identity Processing for NGUN Layered Architecture Ubiquitous Identity Processing Ubiquitous Networking Services Applications(Human, Objects) User/Object Identities Name (Attributes) Identity Management Services Context-Aware Services Identification/ Authorization RFID, Content ID, Telephone number, URL/URI, etc Location Management Services Services (Service stratum) Service IDs Directory Services, Domain Name Services Mapping/ Binding Networked ID Services Session/Protocol ID, IP Address, MAC Address, etc Networks (Transport stratum) Communication IDs

  37. 5. Conclusion Overview of IPv6 based NGN NGN: Currently IP based … • IPv6-based NGN: This is a NGN which support addressing, routing protocol and mechanisms of IPv6 • IPv4-based NGN: This is a NGN which support addressing, routing protocol and mechanisms of IPv4 • IPv6-based Non-NGN: This is an IPv6 based packet network which is not comply with NGN • IPv4-based Non-NGN: This is an IPv4 based packet network which is not comply with NGN ASTAPXX/FRXX/XX/XX

  38. Business/Application oriented projects FMC RFID IPTV Others Managed IP N G N Converged Broadband 5. Conclusion NGN: Enabler for Convergence Limited Services BE IP Limited BB • 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

  39. Video Services (TV, movie, etc) Telephone Services Data Services (WWW, e-mail, etc) Video Services Network Telephone Services Network Data Services Network Service-based Pol./Reg. Transport Agnostic Access Agnostic Service/Application Provider Domain Access Network Provider Domain Pol. Reg. SP3 SP1 SP2 SPm Voice Internet Video MM ANP 1 (DSL) ANP 2 (DSL) CNP 1 CNP 2 ANP 3 (Opt) IP (Future Packet ?) Platform Pol. X Reg. x CNP 3 User xDSL/Optic based Fixed-Mobile ANP N (Cable) Resource-based Pol./Reg. Core Network Provider Domain 5. Conclusion NGN: Changing Regulation Frameworks Pre-NGN

  40. Thank you foryour attention !!!

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