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TETRA ARCHITECTURE AND INTERFACES

TETRA ARCHITECTURE AND INTERFACES. Dr. M. Nouri Marconi Mobile. Agenda. 1 . TETRA 1 Architecture and Standard Interfaces 2. Description of Individual Interface Network Aspects and Scenarios Services Protocols 3. TETRA Standard Gateways Features

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TETRA ARCHITECTURE AND INTERFACES

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  1. TETRA ARCHITECTURE AND INTERFACES Dr. M. Nouri Marconi Mobile

  2. Agenda 1. TETRA 1 Architecture and Standard Interfaces 2. Description of Individual Interface • Network Aspects and Scenarios • Services • Protocols 3. TETRA Standard Gateways • Features 4. TETRA Release 2 Architecture and Interfaces 5. Conclusions

  3. Typical TETRA Network 1b Central Network Management 3 1a BS BS TETRA Infrastructure NMS 5 Another TETRA Network 2 . BS BS BS BS 6 Remote Line Station (Despatcher) 4 PSTN, ISDN PDN

  4. Air Interface (AI) Variants DMO AIR I/F TMO AIR I/F PEI

  5. V D D D V TM V+D Air Interface Air Interface TETRA Infrastructure TDMA FRAME V Uplink TS 1 TS 2 V TS 3 V Downlink TS 4 D TS = Time Slot

  6. TM V+D AI Services • Speech • Data • Circuit mode • Packet mode • Short data service • Supplementary Services • Call Control • Mobility Management • Security Services

  7. BANDWIDTH ON DEMAND Numberof 1 2 3 4 Timeslots No 21.6 7.2 14.4 28.8 Protection Low 4.8 9.6 14.4 19.2 Protection High 2.4 4.8 7.2 9.6 Protection TM V+D AI Data Rate Capacities (kbit/s)

  8. TM V+D AI Protocol Stack CONTROL PLANE USER PLANE • Speech • Circuit Mode • Data • Mobility • Management • Packet • Data • Call Control • Short Data • Supplementary • Services MM CMCE PD Layer 3 Mobile/Base Link Control Entity Logical Link Control Layer 2 Medium Access Control Physical Layer Layer 1

  9. Direct Mode AI Scenarios 2. GROUP CALL 1. INDIVIDUAL CALL NETWORK NETWORK AUTHORIZING MOBILE STATION C 1 2 ABC DE GHI 4 6 MNO PQR 9 V XYZ 3. DUAL WATCH 4. MANAGED DIRECT MODE

  10. Direct Mode AI Scenarios (contd.) REPEATER GATEWAY NETWORK 6. DIRECT MODE GATEWAY 5. DIRECT MODE REPEATER REP/GW/ AUTHORIZING MOBILE REP/GW NETWORK NETWORK 7. DIRECT MODE REPEATER/ GATEWAY 8. MANAGED REPEATER/ GATEWAY

  11. DM AI Protocol Stack CONTROL PLANE USER PLANE Circuit Mode Data Call Control Intrinsic Services Speech Short Data Direct Mode Call Control Layer 3 Data Link Layer Layer 2 Physical Layer Layer 1

  12. Services Supported by ISI To Other Regional SCN To other TETRA Networks ISI To other Regional SCN Local SCN: Switching Control Node NMS: Network Management System BS: Base Station

  13. ISI ISI Example: ISI Group Call Configuration CONTROLLING AND PARTICIPATING NETWORK REQUESTING AND PARTICIPATING NETWORK PARTICIPATING NETWORK

  14. Specific TETRA Operation ISI : Protocol Stack TETRA INFRASTRUCTURE 1 TETRA INFRASTRUCTURE 2 ton TETRA ANF TETRA ANF Specific TETRA Operation c TETRA operation ISI ITU-T Rec. X.229 ITU-T Rec. X.229 ISO/IEC 11582 ISO/IEC 11582 ISO/IEC 11572 ISO/IEC 11572 ETS 300 402-1 and 2 ETS 300 402-1 and 2 Layer 1 Layer 1 PRIVATE SIGNALLING SYSTEM 1 (PSS1) USED IN ISI STANDARD

  15. Inter-Network Backbone ISI IP Inter-working Interface Host Packet Data Network IPI Gp Gi Gi GGSN BG BG GGSN Gn Gn Internal Backbone Internal Backbone HDB HDB VDB VDB TETRA Infrastructure 1 TETRA Infrastructure 2

  16. Peripheral Equipment Interface (PEI) MT2 TE2 TETRA INFRASTRUCTURE PEI

  17. PEI Protocol Layers APPLICATIONS TCP UDP IP TNP1 PEI DOMAIN PPP V. 24/V. 28 TO MOBILE STATION

  18. Standard API and Applications Applications Internet Access AVL Telemetry WAP Standard API Proprietary IP Packet Data Circuit Mode Data Bearer Service SDS TETRA ADAPTATION LAYER Network

  19. TETRA Infrastructure TETRA as an IP Network Content Provider Network Management Center WAP Terminal IP WAP GW Internet LAN Server Database IP IP Corporate Intranet IP Switching/ RoutingNetwork IP IP GPS IP Bluetooth Control Room Server IP IP Voice/IP Dispatcher

  20. Line Station Interface (LSI) LINE STATION TETRAINFRASTRUCTURE BS BS ISDN LSI BS BS BS BS BS Connectivity Options LSI • Basic Rate ISDN • Primary Rate ISDN • 64 kbit Leased Line

  21. Central Network Management Interface TETRA 1 ISI TETRA 2 LNM LNM ISI ISI TETRA 3 LNM • Performance Management • Fault or Maintenance Management • Subscriber Management • Accounting Management • Security Management CNM

  22. PSTN Gateway PSTNGW PSTN

  23. ISDN Gateway 2B+D 30B+2D ISDNGW ISDN

  24. PDN Gateway LAN Server Database X.25 X.75 PDNGW PDN

  25. What next for TETRA? TETRA RELEASE 2 TAPS TEDS • TETRA Enhanced Data Service • Full Compatibility with TETRA 1 • Allows migration from TETRA 1 • Standardisation in progress • 5 technologies proposed • Designed for all TETRA market • sectors • TETRA Advanced Packet Service • An Overlay network • Based on the EDGE technology • Standardisation drafting completed • Designed for PAMR market

  26. TETRA V+D TETRA V+D TAPS Architecture & Interfaces External Packet Data Networks Gi Gi Gi IPI (Gp) GSM/ E-GPRS TAPS OVERLAY Gp ISI (Gr) Gr Gi, Gp & Gr: standard interfaces used in E-GPRS networks

  27. TETRA in 3G Era Network Management Service Nodes Customer Care Billing UMTS Core Network Transit Layer Network Management TETRA1 Access Gateway TETRA Infrastructure UMTS Access GSM Access TAPS Access TETRA1 +TEDS Access

  28. Conclusions TETRA 1 Architectures and Interfaces allow: • Spectrally-efficient feature rich communication • Choice of trunked or direct modes • Interoperability between different TETRA networks • Multimedia services, Internet access and mobile office capability • Extensive data applications capability • Inter-working with public networks • High level of security TETRA Release 2 provides the future upgradability and high speeds required in the 3G era.

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