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NGN Drivers: Acces s and core Networks, legacy services migration issues;

NGN Drivers: Acces s and core Networks, legacy services migration issues;. Dr. Sathya Rao Telscom Consulting Rao@telscom.ch. An initiative to develop the NGN Roadmap. The Network Evolution. New Generation Communications. Wireline. Full Services IP Internet. Gateways. Telephone

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NGN Drivers: Acces s and core Networks, legacy services migration issues;

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  1. NGN Drivers: Access and core Networks, legacy services migration issues; Dr. Sathya Rao Telscom Consulting Rao@telscom.ch

  2. An initiative to develop the NGN Roadmap Workshop on Next Generation Networks: What, When & How?

  3. The Network Evolution New Generation Communications Wireline Full Services IP Internet Gateways Telephone System Wireless Evolving Internet Communications Workshop on Next Generation Networks: What, When & How?

  4. Services IP Access Core Key Technologies Management QoS Mobility Security Workshop on Next Generation Networks: What, When & How?

  5. NGN CONCEPT SIP Billing VHE Proxy Server DHCP WAP AAA Operator’s Server Farm ISP Server Farm SGSN GGSN IP backbone Global Internet Gateway ADSL Router IP backbone WLAN Access Mobile Router Router Workshop on Next Generation Networks: What, When & How?

  6. Network Capacity AccessSpeeds Processor Performance Number of Transistors inIntel's LatestComputer Chip Mbps kbps 1,200,000 Mbps 28,000,000 7,500,000 5,500,000 3,100,000 512 kbps 1,200,000 2,400 Mbps 56 kbps 155 Mbps 134,000 19.2 kbps 2.4 kbps 2 Mbps Fiber Optics Doubling every 9 months "Moore's Law" Doubling every 18 months The ”First Km" Tremendous rise in data transmission capabilities Enormous increase in ability to generate and process information bottle- neck Broadband (Access) for All Some obvious limitation to overcome: Access Crunch Workshop on Next Generation Networks: What, When & How?

  7. Global 2005 Broadband Access Market Forecast 3% 2% 12% 39% BFWA 44% Source: the Yankee Group Workshop on Next Generation Networks: What, When & How?

  8. Broadband AccessTechnologies Satellite, FWA 100% Optical Fibre Cable (coaxial, HFC) DSL POTS + ISDN 0% 2000 2005 2010 Workshop on Next Generation Networks: What, When & How?

  9. xDSL Technologies Workshop on Next Generation Networks: What, When & How?

  10. Ethernet Access Network • Why Ethernet in the last mile • Network designers can build networks with IP and Ethernet and avoid the cost and complexity of protocol conversion • Ethernet supports all services (data, voice and video) and all media types copper & fiber • Standardisation in IEEE 802.3 • Point to multipoint on optical fiber • point to point on optical fiber • point to point on copper Workshop on Next Generation Networks: What, When & How?

  11. Wireless Access Technologies IEEE 802.15.x (PAN) HomeRF 802.11x (WLAN) HiperLAN GSM GPRS EDGE UMTS Global 1000 Mobile Telecomunication Networks 100 Wireless Office Networks Wireless Device Connections 10 Data Rate [Mbps] Range [m] 0.1 1 10 16 100 Workshop on Next Generation Networks: What, When & How?

  12. WLAN, a disruptive technology ? Source : Analysys US Market Forecast 2002-2007 Workshop on Next Generation Networks: What, When & How?

  13. Past Paradigms Present Demand Future Solutions Local Area - On campus - At home WLAN Unlicensed Bands Fixed Data • Personal mobility • High data rate • Incremental infrastructure • Start 1998 Mobility with Network Connectivity (Data + Voice) “3G” WCDMA Wide Area - On the road Mobile Voice Licensed Bands • Full mobility • Modest data rate • All new infrastructure • Start 2002 Wireless IP Networking Revolution Workshop on Next Generation Networks: What, When & How?

  14. The Future Network • Different types of network infrastructures are linked through common protocol • All communication will be based on packets running on circuit, packet and wireless networks • There will be convergence at service level to reach any one from anywhere at any time IPv6 Workshop on Next Generation Networks: What, When & How?

  15. Media Gateways ContentCommunication Application Content Tools Optical FibreBackbone Network Wireless Access Wireline Access Cable Access Applications & Services On the Move In the Home Personal Area Broadband Networks & Services Workshop on Next Generation Networks: What, When & How?

  16. Wireless Dream towards reality • Deployment of WLAN in hot spot areas • Big ISPs have invested in WLAN • Major vendor communities support: Cisco, Intel, Nokia.. • Wireless IP solutions have lots of momentum! • People desire wireless IP terminals and access devices • WLAN offers a good mobile solution for indoor IP access • Added value for the user - Flexibility, user mobility • Added value for ISP - solution for public high IP access • WLAN standards are converging - IEEE 802.11b and IEEE802.11a • Interoperability and roaming issues are being seriously worked out Workshop on Next Generation Networks: What, When & How?

  17. Internet 3G/"HLR" Gateway "WLAN GGSN" GGSN Access Router SGSN WLAN RAN 3G/GPRS RAN WLAN AP BTS Multimode terminal with 3G user identity 3G & WLAN integration Summary of features: - Integrated authentication and billing - WLAN security and mobility with IP terms - AAA work is a must!!! Workshop on Next Generation Networks: What, When & How?

  18. Optical Transport Network Architecture Workshop on Next Generation Networks: What, When & How?

  19. Global / WAN 10/40Gbps/l meshed 10/40Gbps/l ring / meshed l l l l l l l l l l l l ONT l l l l ONT Metro Network DWDM IP/MPLS, MPlS BS BS BS ONT ONT BS BS Public Area WLAN (IEEE 802.11x) NG Metro/Access Network Structure Large business, Enterprises 10 Gigabit Ethernet Customer Premises DSL FTTC (E)PON VDSL 10Gbps/l downstream up to 2.5 Gbps/l upstream • Private customers and SOHOS • Low density housing estates with small (single family) houses PS Passive Splitter Access Network (D)WDM, IP/MPLS Point-to-Point Link UMTS Pico/Micro Cells • Private customers and SOHOS • High density housing estates with large dwelling houses FTTB WLAN/UMTS Roaming UMTS Macro Cells Workshop on Next Generation Networks: What, When & How?

  20. The Evolution of the Core and Access Networks Network Providers require: - plan-able networks - networks that are easy to manage - to offer their resources to as many service providers as possible - return on investment - convergence (where realistic) in order to maximise efficiency and minimise costs Workshop on Next Generation Networks: What, When & How?

  21. Trends in Network Evolution • CPN: Trend towards high speed wireless (over a • short distance) • Access: Trend towards GPRS/UMTS (high-speed ?)/ WLAN for “hot-spots”, xDSL, Cable, PON/FTTH/FTTC • Core: Optical (Trend towards higher DWDM) Workshop on Next Generation Networks: What, When & How?

  22. Trends in Network Evolution (network layer) • CPN: The ubiquity of IP applications has driven the biggest change ever seen in telecommunications networks • Access: An encapsulation of the IP packets is generally made in the access network. IP must be modified for wireless usage • Core: Core networks are essentially containers carrying bits. The overhead (time and loss of capacity) for encapsulation is insignificant Workshop on Next Generation Networks: What, When & How?

  23. The Evolution of the Core and Access Networks Problems of Convergence • Diversity of user requirements (mobility, high bandwidth, real- time response, security, low cost …) • Diversity of service requirements. This leads to the fact that certain network topologies and protocols are more efficient than others. • Diversity of network capabilities • Market forces and proprietory solutions matching the requirements. • Efficient interoperability is key. • Network layer (IP) convergence is the only visible solution Workshop on Next Generation Networks: What, When & How?

  24. The Evolution of the Core and Access Networks Strong trend towards the use of IP as the converged network protocol in the home, access network and backbone. A common protocol for conveying the data from the source to the destination brings (in theory) economies in terms of the network devices, management and maintenance. Workshop on Next Generation Networks: What, When & How?

  25. Technology Development • Some of the key technologies for NGNs wouldhave to include: • - middleware and distributed systems (to enable Service Provider - Network Provider separation) • - IP: IPv6, broadband, QoS, security, mobile and wireless • - multi-domain network management (for seamless roaming and QoS support) • - seamless interworking between core and access networks • - micro and opto-electronics • - cross-media content • - multi-modal and adaptive interfaces • - multi-lingual dialogue mode • - embedded intelligence Workshop on Next Generation Networks: What, When & How?

  26. Technology Development • facilities for (mobile) transitioning between networks owned by different providers mid-session (and the corresponding charging issue) • QoS may be demanded from the network or, alternatively, accounted for by(adaptive) applications • - QoS parameters have to be agreed between Network Providers • - the same service used on a different terminal, or transmitted over a different access network, will require different QoS values • - QoS on IP has been a research topic for several years. The solution usuallyproposed in the literature is the use of Intserv in the access network and Diffserv or MPLS in the core. However, the deployment of Intserv is difficult, since existing Internetapplications are not QoS aware and do not have signalling capability. Workshop on Next Generation Networks: What, When & How?

  27. Application Layer Operations & Business Support Systems SOFTSWITCH Management Control Policy Interpreter Network DB Billing Interface AAA Interface App. Servers Interface QoS Controller QoS Routing Features & Services SLA Management PolicyBased Routing Call Control & MGC DB cNAPS SS7 ISDN H.323 SIP MGCP MEGACO cNAPS Virtual Channels Control SLA Verification RTP Forwarding QoS Measurement Media Gateways Media Servers IP End Points Transport Layer Simplified NGN Architecture Workshop on Next Generation Networks: What, When & How?

  28. Multi-Service Softswitch…delivering multiple services using aFeature Rich Edge Feature Rich Broadband Edge NGN Packet Infrastructure Multi-service Gateway Service Specific Interfaces Broadband Multiple Service Access Workshop on Next Generation Networks: What, When & How?

  29. NGN Features & Benefits • Features • Multiple applications and media types • Enhanced connectivity, accessibility and availability • Benefits • Increase revenue opportunities through new services and products • Significant Reduction of operational costs Workshop on Next Generation Networks: What, When & How?

  30. NGN: Conclusions • The NGN will deliver new ways of communicating that most can’t conceive of today • The NGN is not about rate arbitrage • IP will rule from network core to the desktop • The value of the NGN grows exponentially in relation to the number of applications it supports • The NGN is by nature global • The NGN is the integration of communications with IT and lifestyle • The transformation of the NGN is already occurring - don’t miss the boat Workshop on Next Generation Networks: What, When & How?

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