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MATERI KULIAH 6 SP 2005 PENJASTEL

MATERI KULIAH 6 SP 2005 PENJASTEL. Next Generation Networks ( NGN ). Adapted from PT. INTI internal documents for teaching purposes. Realization of Convergence of the telecommunication networks Using Distributed Control Architecture instead of Traditional common control architecture.

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MATERI KULIAH 6 SP 2005 PENJASTEL

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  1. MATERI KULIAH 6 SP 2005 PENJASTEL

  2. Next Generation Networks( NGN ) Adapted from PT. INTI internal documents for teaching purposes

  3. Realization of Convergenceof the telecommunication networks Using Distributed Control Architecture instead of Traditional common control architecture Next-G networks: Definitions

  4. Traditional Networks: Separated Networks Distinct services: voice, mobile, data Different equipment for different services Different regulations SS7 Network CL5 Switch IMT IMT PSTN PRI CL5 Switch CL4 Switch C4 Switch Corp PBX MSC PSTN CL5 Switch ISP RAS ISP RAS CL5 Switch Internet ISP ISP Traditional Networks Separated Networks

  5. PSTN uses a circuit-switched network to carry voice Proven, reliable, QoS, feature rich, intelligence is in network PSPDN uses a packet-switched network to carry data Open interfaces, flexible bandwidth, lower costs, intelligence is in CPE Traditional Networks Separated Networks Access Switch DLC Central Office Switch Point of Presence PSTN PSPDN

  6. This situation is expensive and inefficient: Many solutions are proprietary Many resources are duplicated and cannot be shared Separate management system for each network The future belongs to data networks but the money is in voice! The Data Network expands, but voice is still the main revenue-generator Traditional Networks Problems

  7. Data: Superior “Traffic Volume” Total Average Bit rate (Gbit/s) Source: Siemens

  8. Voice: Key “Revenue Generator” Operator Revenues (billion DM ) 29 % 25 % 20 % Source: Siemens

  9. The next-generation network seamlessly blends the public switched telephone network (PSTN) and the public switched packet data network (PSPDN), creating a single multi-service network. This is called convergence End Office Switch End Office Switch Corporate Network IMT Internet IMT PRI PRI ISP RAS ATM PSTN Convergence Switch Convergence Switch Corp PBX ATM Core IAD Convergence Network Definition

  10. Switch Switch Switch Convergence Missing Link Multimedia Service Platform Feature Rich Flexible bandwidth QoS OpenI I/F Reliable Lower costs Proven Intelligence is in network Data Networks Voice Networks Intelligence is in CPE • To fill the missing link between voice & data networks, you need wirespeed, cost efficient mediation devices at the junction points of networks, controlled by centralized intelligence of a powerful call and feature server ...

  11. IP TDM ATM Intelligence Distributed Control Architecture • Intelligence • Old Architecture: • Larger • Centralized (common) • Expensive • Proprietary • New Architecture: • Smaller • Distributed • Cheaper • Open

  12. IP TDM ATM Distributed Control Architecture • Common Control Architecture • Proprietary H/W and S/W • Wait for generic S/W release to launch application/services • Long application development time • Open Distributed Architecture • More applications, more revenues • Service creation at network edge, close to the customer • Lower cost, faster application development

  13. Packet Network IP or IP over ATM ITU Layer Model of Next-G Network App Server Softswitch OSS Central Service Server APIs for 3rd party app development Service & Control Layer Call Server Control Signal to SS7 GW Control Signal to Internet GW Core Network GW (SS7 Network) Gateway Interconnect GW to the Internet Transport & Connectivity Layer Access GW Mobile CATV Fixed Access Layer Phone WAP CATV AN PSTN Voice-data Int access

  14. Circuit-switch vs. Softswitch The Softswitch will play a strategic role in the next-generation public network infrastructure for voice, video and data communications Circuit-Switched Soft-Switched Services, Applications & Features (Management, Provisioning and Back Office) PROPRIETARY Services & Applications Open Protocols APIs Call Control & Switching Softswitch Call Control Open Protocols APIs TransportHardware Transport Hardware Softswitch Objectives • Flexible distribution of switching functionality • Interoperability among functional elements • Carrier selection of best-in-class components • Rapid introduction of innovative new services

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