1st Ireland TETRA Conference - TETRA MoU Association Dublin, 13th April 2005 Beyond the TETRA Technology

Introduction Beyond the TETRA Technology TETRA MoU Association Conference Teltronic, 2005

The context  The technology is just the way to provide the user with a certain service, not the end itself.  Users don’t normally speak the language of the technology, and so we need to be able to understand their needs and to look for the way to give them a solution.  For a complete solution, the degree of satisfaction experimented by the user depends on the quality of service they feel, independently of the technology that supports the application. Teltronic, 2005 Introduction (I)

Introduction (II) What we will offer in the presentation  The way to provide TETRA terminals with extra added value to make easier the development of advanced applications.  The main keys of flexibility, scalability and connectivity to allow choosing the best option for your TETRA network topology.  Study cases based on real situations where TETRA needs to satisfy strong user requirements. Teltronic, 2005

Introduction (III) What we expect to achieve  To demonstrate -once again- that TETRA represents the best option for professional radio communications today.  To open your minds towards new ways to take benefit of such a powerful technology, also being aware of its limits and the way to overcome them.  To provide the keys to you for optimal decision making in your present and future investments in TETRA products. Teltronic, 2005 If you still don’t believe in TETRA, you will starting today !

INTRODUC TION TERMINAL NETWOR K SUMMAR Y è Presentation overview Introduction (IV) Teltronic, 2005

The Terminal Driving your applications to the limit Teltronic, 2005 Beyond the TETRA Technology TETRA MoU Association Conference

Teltronic, 2005 Index of contents The role of the terminal in a system Improving the terminal capabilities Examples of customised scenarios Beyond the TETRA Technology TETRA MoU Association Conference The Terminal

? The role of the terminal in a system (I) è Which are the kind of elements normally requested to solve a complete application? Multiple audio interfaces Microspeaker In-vehicle hands-free kit 600Ω balanced interface Audio recording output Ambience listening mic input Extended I/O capabilities External PTT (foot-switched) input Event-controlled outputs Emergency signal input Integration with other communication peripherals GPS receiver GSM transceiver Analog radio transceiver Data transmission & control External access to data transmission services Remote radio unit control protocol MMI customised access User logging Shortcuts to user services Software customisation at application level Customised user front-ends Teltronic, 2005

? The role of the terminal in a system (II) è Is there a way to optimise these kinds of extra requirements? …by integrating into the TETRA terminal part of those elements that normally are required for such advanced scenarios. YES ! TETRA radio unit Audio interface Peripheral #1 Customised MMI USER APPLICATION ELEMENTS External I/O Peripheral #n External peripherals TETRA terminal Teltronic, 2005

Index of contents The role of the terminal in a system Improving the terminal capabilities Examples of customised scenarios Beyond the TETRA Technology TETRA MoU Association Conference The Terminal

TETRA MS CONTROL UNIT GPS PEI GPS info SDS type 4 TETRA SwMI LINE DISPATCHER STATIONS GPS info è Some ways to improve the classical AVL (Automatic Vehicle Location) solution GPS receiver integration in TETRA terminals: Single TETRA + GPS devices. Methods to decide about the way and the timing to send the GPS information: It also makes the application more efficient in use of system resources. GPS information packed in smaller messages: More efficient in use of bandwidth. USER Teltronic, 2005    TETRA + GPS (I)

TETRA + GPS (II) Teltronic, = Single terminal GPS size Shortened GPS info (less resolution) SDS-T3  8 bytes Confined area GPS info SDS-T2  4 bytes GPS info (*) Latitude Longitude Position age Course Speed Time Position validity GPS receiver status Standard NMEA 0183 v2.01 RMC message SDS-T4  68 or 70 bytes (without/with TL) (*) some parameters can appear optionally according to the message format message format  GPS messages management strategy by request from the AVL control centre, by timeout, every programmed time intervals, by distance threshold in a programmable value, automatic sending during emergency calls.

TETRA + GSM è Some reasons to a dual TETRA+GSM terminal  The possibility of communication for mobile users that often need to leave the home coverage area increases their level of service anywhere.  A single MMI for TETRA and GSM operation makes easier the user interaction.  A compact solution reduces complexity in installations and avoids the user managing two separate communication devices.+= Single terminal Teltronic, 2005

Interfacing the TETRA terminal è Some ways to enhance the usability on the terminal  Customising the MMI by including specific user interaction procedures adapted to certain circumstances of use, by developing special user front-ends to better fit the different scenarios of use and installation.  Increasing the strength of the PEI by incorporating additional commands for complete interaction with external control applications, by selecting which services are managed through the PEI and which ones are controlled from the MMI.  Expanding the external interaction mechanisms by the use of input/output control signals associated to certain events. Teltronic, 2005

Index of contents The role of the terminal in a system Improving the terminal capabilities Examples of customised scenarios Beyond the TETRA Technology TETRA MoU Association Conference The Terminal

Advanced vehicular configuration (I) Ü USUAL REQUIREMENTS - Half-duplex and duplex voice calls. - Status and short data transmission. - Remote database and file access. - GPS-based vehicle location system. Teltronic, 2005

Advanced vehicular configuration (II) Ü Example: CONFIGURATION STRUCTURE PC vehicular unit MMI front-end PTT Foot switch Hands-free mic Loudspeaker Fist microspeaker Teltronic, 2005

Motorbike adapted equipment (I) Ü USUAL REQUIREMENTS - Half-duplex and duplex voice calls. - Status and short data transmission. - Outdoor operation (dust & water protection, high audio, noise cancellation). - Simplest user interaction. - GPS-based location system. Teltronic, 2005

Motorbike adapted equipment (II) Ü Example: CONFIGURATION STRUCTURE Battery PEI & audio Helmet audio system Outdoor speaker PTT on handlebars Teltronic, 2005

Bus on-board equipment (I) Ü USUAL REQUIREMENTS - Half-duplex and duplex voice calls. - Status and short data transmission. - Vehicle sensors transmission. - MMI integrated on driver’s dashboard. - Interaction with passenger information system. - GPS-based location system. Teltronic, 2005

Bus on-board equipment (II) Ü Example: CONFIGURATION STRUCTURE - PTT - Emergency button - Call request Passenger information system Audio interface Bus driver’s audio system Bus driver’s MMI control PEI Telemetry sensors Billing system Other peripherals engine, speed, doors... Control unit DISPLAY data TETRA MS Ambience listening microphone Hands-free audio kit Handset Teltronic, 2005

Railways & underground train equipment (I) Ü USUAL REQUIREMENTS - Half-duplex and duplex voice calls. - Status and short data transmission. - Dual MMI console integrated on driver’s dashboards. - Interaction with passenger information system. - Interaction with on-board train computer. - Integration of multiple communication subsystems. Teltronic, 2005

Railways & underground train equipment (II) Ü Example: CONFIGURATION STRUCTURE CONTROL MODULE VHF analog radio TETRA radio unit AUDIO INTERFACE to MMI console #n to train’s control system to TETRA antenna to passenger audio system to VHF antenna Hands free audio system Handset LED indicators Auxiliary buttons Keypad Display CONTROL MODULE MMI console Communications rack Teltronic, 2005

Railways & underground train equipment (III) Ü Example: INSTALLATION DETAILS MMI console Communications rack (TETRA + analog VHF) Overview of communication devices Train’s main control system Teltronic, 2005

The Network A new world of flexibility and scalability Beyond the TETRA Technology TETRA MoU Association Conference

Teltronic, 2005 Index of contents Introduction Transport Redundancy Scalability Connectivity Beyond the TETRA Technology TETRA MoU Association Conference The Network

Teltronic, 2005 Introduction to the network (I) NEBULA ACRONYMS: SCN: Switching Control Node SBS: Site Base Station NEBULA is the TETRA infrastructure by Teltronic. It has been designed over a star configuration topology.

Teltronic, 2005 Introduction to the network (II) TRANSPORT: Customers could already have an existing transport network and they would like to reuse it with the new TETRA system. REDUNDANCY: The only way to guarantee the lowest service gap in case of faliure of any element in the system. SCALABILITY: Early and low-cost mechanisms to upgrade and expand the system are highly valuable. CONNECTIVITY: The system oftenly needs to be connected to other external systems and/or applications. è A flexible topology provides the customer with different alternatives to address the main topics of every system architecture design: transport, redundancy, scalability and connectivity. SBS Link SCN SBS IP network Transport Redundancy Scalability Connectivity

Teltronic, 2005 Index of contents Introduction Transport Redundancy Scalability Connectivity Beyond the TETRA Technology TETRA MoU Association Conference The Network

Teltronic, 2005 Transport (I) è Synchronous links: BRI - PRI [ISDN]: Access through public networks. Bandwidth BRI (Basic Rate Interface): 128 Kbps. Bandwidth PRI (Primary Rate Interface): 2 Mbps. G.703/G.704: [E1 or T1]: Standard link in transport environments. Access to PDH, SDH, microwaves. Circuit connection to other standardised systems. Bandwidth: 64 Kbps per slot, frame structure up to 2 Mbps. V.35 link: Standard link in transport environments. Access to PDH, SDH, microwaves. Bandwidth: 64 Kbps up to 2 Mbps.

Teltronic, 2005 Transport (II) è Asynchronous links - Layer 2: LAN links (Layer 2 - Ethernet links): LAN (Corporate local area networks) : - Always through switches (instead HUB). - Ethernet rings (Rapid Spanning tree, 802.1w). Bandwidth: 10 Mbps, 100 Mbps, 1 Gbps. WiFi / WiMAX: GHz, 5.4 GHz (with or without license) Bandwidth: From 1Mbps up to over 54Mbps. Optical Fiber (using optical backbones): - Solutions like HyperRing. Bandwidth: 100 Mbps, 1Gbps...

Teltronic, 2005 Transport (III) WiFi Connection SBS Standard Office Local Area Network Ethernet Switches SBS Optical Fiber Fiber Access Fiber Access Ethernet Switch 70 Km LAYER2 SYSTEM ACCESS: : Ethernet connections : Wireless connections : Optical Fiber connections SCN SBS è Asynchronous links - Layer 2:

Teltronic, 2005 è Asynchronous Links - Layer 3: IRB ( Integrated Routing and Bridging): Point-to-point link between two routers through WAN connection with FR (Frame Relay). The use of DLCI (Data Link Connection Identifier) in FR allows dividing the bandwidth for the TETRA system and corporate communications. VPN/MPLS ( Multi Protocol Labelling Switching): Using layer 2 labels it is possible to manage the QoS of the layer 3 packets. xDSL / NetLAN: Access points distributed around the world. Depending of the bandwidth required is recommended to use NetLAN connections. These are not introducing the payload packet through the Internet world. Transport (IV)

Teltronic, 2005 è Asynchronous Links - Layer 3: VPN / MPLS connections Dedicated Line (Frame Relay) NetLAN (not Internet access) xDSL (access through Internet) System links must ensure:  Guaranteed bandwidth Control channel requires 16 Kbps Traffic channel requires 16 Kbps  Minimum transport delay  Delimited jitter  Quality of Service (QoS) FR ADSL NetLAN Transport (V)

Teltronic, 2005 Index of contents Introduction Transport Redundancy Scalability Connectivity Beyond the TETRA Technology TETRA MoU Association Conference The Network

Teltronic, 2005 Redundancy (I) è Redundancy is a strong requirement for any professional communication network: A TETRA SYSTEM MUST BE REDUNDANT on: BSR: Base Stations. CNC: Switching Control Node Processor (redundant by two main units). LINKS: Must be redundant in case of a fault in transport system. PATHS: Different paths must be considered to connect the SCN from the SBS. Physical Connections: Cables and hardware drivers can also fail, therefore these must be duplicated.

Teltronic, 2005 è Redundancy strategies must be applied to any critical part within the system: CNC SCN (Switching Control Node) LAN SBS1 LAN BSR SNI G.703/G.704 Asynchronous World Ethernet Switch Synchronous World SNI G.703/G.704 E1 Link WAN Redundant E1 Link ISDN SNI S/T BRI Link Ethernet Switch Redundant Physical Connections Redundant Ethernet Switch Redundant Ethernet Switch Redundancy (II)

Teltronic, 2005 Index of contents Introduction Transport Redundancy Scalability Connectivity Beyond the TETRA Technology TETRA MoU Association Conference The Network

Teltronic, 2005 Scalability è Systems must be designed to support upgrades with the minimum impact over the working network. Both software and hardware upgrades are expected to be supported.  Software upgrades (Increasing functionality): Background FTP to upgrade functionality. The system must be continuously working. Secondary memory bank is required.  Hardware upgrades (Expanding the network topology): Increasing network dimension or redundancies. Plug and Play. Hot swap connection.

Teltronic, 2005 Index of contents Introduction Transport Redundancy Scalability Connectivity Beyond the TETRA Technology Teltronic Conference on Professional Mobile Communication The Network

Teltronic, 2005 è General connectivity concepts in NEBULA N2A: (NIIA) NEBULA IP Interface Access TDP: TETRA Dispatcher Protocol Connectivity (I)

Teltronic, 2005 è Voice communication management (Dispatching) SCN NEBULA GATEWAYRDSI VoIP VoIP (SCN RTP / RTCP) TDP (SCN Monitoring, Calls, PTT)XML (NMS) GATEWAYRDSI VoIP CNC NMS Server Line Dispatcher Server FIREWALL SNI SWITCH Backbone Corporate Network Client SCN Line Dispatcher 1 Client SCN Line Dispatcher n SBS NEBULA SNI SWITCH FIREWALL Client SBS Line Dispatcher 1 GATEWAYRDSI ISDN PHYSICAL CONNECTION between Line Dispatcher stations and NEBULA Connectivity (II)

Teltronic, 2005 Summary Beyond the TETRA Technology TETRA MoU Association Conference

Teltronic, 2005 TETRA is a mature technology It is the time to start thinking more and more on the customer needs and their solutions than in the technology itself. mature technology Over 10 years with TETRA standard Demonstrated multi-vendor scenarios Hundreds of references worldwide Robustness and performance already demonstrated

Teltronic, 2005 Maximising the user satisfaction è In the road towards killer applications  TETRA terminals can play a more relevant role on applications by integrating them with complementary technologies and customising the way to interact with the external elements.  On the network side, flexibility+scalability+connectivity mechanisms guarantee the feasibility almost in any solution required.  Suitable design strategies optimise the overall system efficiency. Application providers should consider that.  Manufacturers could adapt their products to better fit the users needs for certain special scenarios, always within the interoperability scope.

Teltronic, 2005 Thinking beyond TETRA 1 TETRA can now be considered as a mature and stable technology. There is a lot of positive feedbacks from the real world. The TETRA toolbox is ready. The user DOES NOT speak normally in TETRA language. We ALL (manufacturers, application developers, system integrators, network operators) need to learn their language. 2 3 toolbox Common language USER SATISFACTION …thinking Beyond the TETRA Technology Beyond the TETRA Technology

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