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N EXT G ENERATION N ETWORK

N EXT G ENERATION N ETWORK. Next-G networks: Definitions. Realization of Convergence of the telecommunication networks Using Distributed Control Architecture instead of Traditional common control architecture. Separated Networks. SS7 Network. CL5 Switch. IMT. IMT. PSTN. PRI.

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N EXT G ENERATION N ETWORK

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  1. NEXT GENERATION NETWORK

  2. Next-G networks: Definitions • Realization of Convergenceof the telecommunication networks • Using Distributed ControlArchitecture instead of Traditional common control architecture

  3. Separated Networks 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 • Traditional Networks: Separated Networks • Distinct services: voice, mobile, data • Different equipment for different services • Different regulations

  4. Separated Networks Traditional Networks Access Switch • 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 DLC Central Office Switch Point of Presence PSTN PSPDN

  5. Problems Traditional Networks • 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

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

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

  8. 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 Definition Convergence Network • 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

  9. 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 wire-speed, cost efficient mediation devices at the junction points of networks, controlled by centralized intelligence of a powerful call and feature server ...

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

  11. 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

  12. ITU Packet Network IP or IP over ATM 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

  13. 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

  14. Next-G Switch: General Characteristics • Extreme Scalability • Service Creation Environment • Remote Management and Diagnostics • High Availability

  15. Extreme Scalability • Hardware & software scales to meet the demands of any network deployment • Purchase only the capacity that the network requires • For additional capacity, insert additional cards Network Level System Level Card Level Card Level SNMP

  16. Service Creation Environment • Allow carriers to develop, deploy and pay only for the services that their customers require • No longer need to wait for a vendor’s next release of feature software • Gives a competitive advantage to the carrier • Competitors may not be able to offer the same service

  17. Remote Management & Diagnostics • Connect a distributed network of intelligent switches together and manage them as a single virtual switch • Graphical User Interface (GUI) for easier management

  18. Highest Availability • Hot-swappable, fault-tolerant system • Switch does not have to be brought down for hardware upgrades • New software can be uploaded and activated while the switch is in service • Zero downtime

  19. SURPASS SURPASS Switch Remote Switch Remote Switch SURPASS hiQ NetManager Circuit-Switched Network SURPASS hiG SURPASS hiA ... ... Vendor Solutions: Siemens Packet-Switched Network Residential Small-Medium Enterprise Residential

  20. Vendor Solutions: ZTE

  21. Vendor Solutions: Huawei Softswitch iNET - Huawei NGN Solution

  22. Vendor Solutions: Alcatel

  23. Vendor Solutions: Ericsson Telephony Server Telephony Server Q.BICC H.248 H.248 ACCESS NODE ACCESS NODE AXD301 AXD301 AXD301 LOCAL EXCHANGE MEDIA GATEWAY MEDIA GATEWAY LOCAL EXCHANGE PBX CORE SWITCH PBX

  24. Summary • 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. • Rather than large, centralized, proprietary switch infrastructures, this next-generation architecture pushes central-office (CO) functionality to the edge of the network. • The result is a distributed network infrastructure that leverages new, open technologies to reduce the cost of market entry dramatically, increase flexibility, and accommodate both circuit-switched voice and packet-switched data.

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