Tetra Coverage Documentation

[primig]

Hi!
I would like to have some discussion, exchange some knowledge and share some documents about network planning and design for Tetra.
There aren't many actual examples to see on the internet because of the sensitive nature of Public Safety Networks as well as the suppliers & consultants not wanting their data spread around for all to see.

(Repaired PDF) Example from an actual Tetra Radio Planning as submitted to a customer for a real offer, prepared by an equipment manufacturer posted below.
I have edited out the customer and manufacturer, but if you search carefully you can probably work it out from some of the equipment numbers :)
I will post separately the manufacturer later on, if anyone is curious.

Thanks & reputation are always welcome but I would prefer that you take a look, ask questions, & share your opinions, whatever you think is useful.
If you have similar documents, please also share them !
I will add some more as I have time to prepare them for sharing.

[primig]

another Tetra radio planning, from a different manufacturer, no password

[famox]

Please upload again. Example Report 1.pdf is damaged

[primig]

corrected now sorry :(

Example of a Pre-Sales, nominal planning

[khatib86]

Hi Priming,,

Do you have Link Budget Calculations for TETRA in Practical??

Regards

[primig]

I hope this one helps you out:
Moto Link budget.rar (http://www.finetopix.com/attachment.php?attachmentid=35312&d=1395003187)

You can find the accompanying slides to go with it here:
http://www.finetopix.com/showthread.php?38497-Mot-Seminar-on-Tetra-RF-Planning

Good Luck!

[primig]

Anyone else have something to contribute? It would be much appreciated!
Here is a short capacity & coverage guideline from one of the smaller infrastructure manufacturers:

[primig]

This ones in Spanish, but calculations,plots & results should still be clear enough

[Stantheman]

Hi Primig, interested to see the results for GSM, UMTS, LTE please.

Thanks and BR's, Stan.

[primig]

Hi Primig, interested to see the results for GSM, UMTS, LTE please.

Thanks and BR's, Stan.

message sent, enjoy!

[primig]

A small UK Gov network, edited slightly to remove names, customers and pictures.

It would be great if anyone else could share one? or message me one privately if you dont want to share with the world? I believe its much better to learn from example than through trainings, but this type of material is hard to get hold of because of the nature of the business....

[primig]

A tetra coverage planning for a tunnel using ATDI ICS software, in Spanish, but the diagrams and tables provide a good explanation of the process.

[primig]

Report for a US EDACS system approaching end of life (not Tetra! but still Public Safety)

City / County Public Safety Radio System Assessment Report
December 2013

Table of Contents
PROBLEM STATEMENT
EXECUTIVE SUMMARY
Radio System Overview
Radio System Recommendation
OPTIONS OVERVIEW
Budgetary Costs for Radio System
CITY – COUNTY FINDINGS/ISSUES
Issues/Information Discovered through Interviews
Observations and Radio Shop Interview Information
Information Reported through Surveys .
EDACS RADIO COMMUNICATIONS SYSTEM
800 MHz EDACS Trunking System Sites
Radio Dispatch Consoles
Bi-Directional Amplifier BDA Equipment
Primary Users of the EDACS Voice Radio System
System Performance and Operation
Technical Support
EDACS END OF LIFE CONCERN
OTHER RADIO COMMUNICATIONS SYSTEMS
Rural Fire
Paging
Siren System
Public Schools
Mobile Data Systems
Other 800 MHz Radio Systems (Site)
Other VHF Radio Systems (Site)
Other UHF Radio Systems (Site)
900 MHz Radio Systems
FCC LICENSES FOR INFRASTRUCTURE
800 MHz Trunking System Channels
Conventional 800 Channels
Conventional UHF Channels
Conventional VHF Channels
MICROWAVE, FIBER AND NETWORK CONNECTIVITY
PHYSICAL FACILITIES
Towers
FIELD UNITS
PROPAGATION PREDICTION SIMULATIONS
City – County Terrain
City – County Land Use
Coverage Predictions
SYSTEM USERS
Public Safety Users
County Sheriff
Rural Fire
Public Service
Public Schools
SYSTEM IMPROVEMENT OPTIONS
General
Recommendation
Alternative Recommendation for Non-Public Safety
Fire Paging Recommendation
System Infrastructure Summary Recommendation
Option for Public Services
Coverage Predictions
Microwave
RFP Design Considerations
BUDGETARY COSTS FOR POSSIBLE SOLUTIONS
Option 1: Two Sites P25 Simulcast (Today’s System – P25)
Option 2: 800 MHz P25 / 800 MHz Analog/DMR
Option 3: 800 MHz P25 / VHF P25 / DMR
RECOMMENDATION
TRANSITION PLANNING
Training
APPENDIX 1 – USER TERMINAL INVENTORY
APPENDIX 2 – FCC TRUNKED SYSTEM LICENSING
APPENDIX 3 – LANCASTER COUNTY RURAL FIRE DISTRICTS
APPENDIX 4 – EDACS USER LIST
APPENDIX 5 – DELIVERED AUDIO QUALITY (DAQ)
APPENDIX 6 – USER DEFINITIONS

[primig]

A P25 Coverage Acceptance Test Plan (CATP) example
A test report on the coverage of a US Emergency Response P25 system to determine DAQ (delivered Audio Quality) and to gather signal strength (control channel) data
November 2007

Table Of Contents
1.0 Introduction
1.1 Purpose
2.0 ResuIts
2.1 Test Data
2.2 Derived Coverage Maps
3.0 Summary Of Testing And Conclusions Reached
3.1 Talk-In DAQ
3.2 Talk-Out DAQ
3.3 RSSI
3.4 Overall Test Conclusions
4.0 Recommendations
5.0 Definitions And Process
5.1 Channel Performance Criterion
5.1.1 Delivered Audio Quality
Table 5-1 Delivered Audio Quality Definitions
5.1.2 Signal Level
5.2 Service Area and Conditions
5.3 Validated Service Area Reliability
5.4 Continuous By Time Test Mode
5.5 Test Sampling
5.5.1 DAQ Test Sample
5.5.2 Passed/Failed DAO Test Sample
5.5.3 Received Signal Strength Indicator (RSSI) Test Samples
5.5.4 Passed/Failed RSSI Test Sample
5.5.5 Digital Scout
6.0 Equipment And Test Setup
6.1 The RaCE Test Set
Figure 6-1 RaCE Test Setup 14
Table 6-1 RaCE Stationary Location Equipment
Table 6-2 Rae E Mobile Location Equipment
6.2 The RaCE Test Sequence
6.3 The Ra CE Test Set Calibration
Table 6-3 RSSI & Attenuation Accuracy Verification Equipment
6.4 DAQ Testing Attenuation
Table 6-4 Mobile Unit Talk-Out Correction For Portable Receive
Table 6-5 Mobile Unit Talk-In Correction For Portable Receive
Figure 6-2 Bi-Directional Attenuation Details
6.5 Specific Equipment Test Setup for DAQ and RSSI Testing
6.6 Test Radios
7.0 Test Method
7.1 RaCE Test System Capabilities and Characteristics
7.1.1 T alk-1 n and Talk-Out DAQ Testing
7.1.2 RSS I Test Mode
7.2 Geographic Areas and Sites Tested
7.3 Monitored Frequencies
Table 7.1 Viper Radio Frequencies
Appendix A Setup Procedures
A.1 Pre-Ship Procedures
A.2 Post-Ship Procedures
A.3 Pre-Test Procedures
A.4 Conclusion of each Day of Testing
A.5 Prolonged Interruptions
A.6 Conclusion of Final Testing
Appendix B Coverage Maps

[primig]

Digital Radio System
Aiport Rail link & Terminal
Siemens 2007

1 Definitions
2 Abbreviations
3 General Requirements
3.1 Introduction
3.2 Purpose
3.3 Scope
3.4 References:
4 Safety
4.1 Lightning Protection
5 Introduction to TETRA
5.1 TETRA Standards/Codes or References
5.1.1 DMX Digital Mobile Exchange
5.2 Main features of TETRA
5.2.1 Physical layer
5.3 Registration and attachment
5.4 Voice Communication Services
6 Signal Propagation
6.1 Signal Propagation Equipment
6.2 RF Propagation System
6.2.1 Leaky Feeder Characteristics
6.3 Intermodulation Considerations
6.3.1 Basic Intermodulation
6.4 Frequency Plan
6.4.1 RBS and FO Repeater LXC Length Calculations
6.5 Typical Link Budget Calculations
7 System description
7.1 System Features
7.2 Radio Network Infrastructure
7.3 Network Elements
8 Network operations
9 Central Control Equipment (DMX)
9.1 Digital Exchange DMX
9.2 Functional Structure of the DMX
9.2.1 U-Link, C-Link
9.2.2 Switching Interface Unit (SIU)
9.2.3 Multi Tier Architecture
9.2.4 Client Server Architecture and Function
9.2.5 NMS-500 Monitor Client
9.2.6 Network management Client for Radio User Data
9.2.7 Network management Client for message Management
9.2.8 Authorised User Access
9.2.9 Message Categories
9.2.10 Forwarding of Messages
9.2.11 Message Interface to peripheral equipment
9.3 PAK
9.3.1 ATS Interface
9.3.2 Failure of the ATS to Radio System Link
9.3.3 PTI
10 System Data services
10.1.1 Interface ATO → TRS
10.2 PTI information (A- telegram)
11 TETRA Network and Redundancy
11.1 Transparent data transmission between Gateway and ATS
11.1.1 Data exchange between the Gateway and ATS
11.2 Database layout
12 Radio Dispatcher Workstations
12.1 ARL- Radio Work-Station Overview
12.1.1 Equipment
12.1.2 20” Screen Monitor
12.1.3 Loudspeakers
12.1.4 Handset
12.2 Functions of Radio Dispatcher Workstation (RDW)
12.3 Display of Radio Calls
12.3.1 Call Stack
12.4 Example of screen displays
12.4.1 Incoming Call
12.4.2 Outgoing Semi Duplex call
12.4.3 Initiate Semi-duplex calls to two or more subscriber
12.4.4 Initiate PA calls
12.4.5 Sending and receiving SDS messages
12.4.6 Receiving alarm messages
13 Call Access Rights
13.1 Subscriber Numbers
13.1.1 Dispatcher and Radio Control Panel
13.1.2 Engineering Handportable numbers
13.1.3 Station Handportable numbers
14 Radio Components
14.1 Radio Base Stations
14.2 Radio Failures
14.3 The DIB-500 base station
14.3.1 Components of the DIB-500
14.4 TETRA Outdoor Base Station (TOB-500)
14.5 Base Station Link Redundancy
14.6 Base Station IP Address
14.7 Mobile Radio Equipment
14.8 Radio Control Panel
15 Fibre Optic Repeaters
15.1 Optical Master
15.2 Optical Repeater Unit
16 Antenna Types
17 Call Hand-Over
18 Interfaces to other Sub-systems
19 Cabling and Wiring
19.1 Enhance CAT 5E Cable
19.2 Power Cable
19.3 Fibre Optic Cable
19.3.1 General
19.3.2 Temperature and humidity
19.3.3 The Optical fibre
19.3.4 Optical fibre cable
20 System Assurance
20.1 EMC/EMI
21 System Assurance
21.1 RAMS
21.2 MTBF




Table of Figures
Figure 1: TETRA frame structure
Figure 2: Uplink/downlink timeslot offset
Figure 3: Basic Intermodulation
Figure 4: Network Elements
Figure 5: Digital Mobile Exchange
Figure 6: Functional Structure
Figure 7: NMS-500 Server
Figure 8: Data services - system overview
Figure 9: Two TRS (train radio sub-racks)
Figure 10: Data flow in the system
Figure 11: Transparent data flow from the gateway to the ATS
Figure 12: Request for data update from the gateway
Figure 13: Answer procedure from the ATS
Figure 14: Database Redundancy
Figure 15 Typical Workstation Layout
Figure 16 SCENICVIEW P20-2 monitor
Figure 17 Handset
Figure 18 Handset Cradle
Figure 19 PTT Button
Figure 20: Incoming Call
Figure 21: Outgoing Semi Duplex call
Figure 22: Semi-duplex calls to two or more subscribe
Figure 23: Initiate PA calls
Figure 24: Sending and receiving SDS messages
Figure 25: Receiving alarm messages
Figure 26: Termination area of the DIB-500
Figure 27: Digital Indoor Base Station (DIB 500)
Figure 28: Base Station Link Redundancy
Figure 29: Hand-portable Radio
Figure 30: Radio Control Panel
Figure 31: Optical master unit front view
Figure 32: Optical Repeater Unit
Figure 33: System configuration with redundancy
Figure 34: Calculation of UL & DL for FO Repeaters
Figure 35: Enhance Category 5 Screen Cable
Figure 36: 2.5mm2 2 core power cable

List of Tables
Table 1: Definitions
Table 2: References
Table 3: Frequency Allocation
Table 4: LCX Cable Sections
Table 5: Call Access Rights
Table 6: Subscriber Number
Table 7: Engineering Handportable subscriber numbers
Table 8: Station Handportable subscriber numbers
Table 9: Train Mobile subscriber numbers
Table 10: Optical Master Unit Data
Table 11: Optical Repeater Unit Data
Table 12: Power Cable Specification

[primig]

A TETRA coverage study from 2013 of 2 ancient ruins for using IBWave . I think it may have been made as a proof that IBwave could be used for Tetra in principle, but not to an provide an accurate coverage indication in these areas - important things like equipment specifications, link budget, field strength, scale are missing from the report & plots.

Enjoy, and please share if you have access to any Tetra radio planning material!

[whistler]

Digital Radio System
Aiport Rail link & Terminal
Siemens 2007

Hi. Can you please share files from this topic... I didn't have enough reputation to download directly from forum. Thanks in advance

[UTOPIA]

I don't have any diagrams or anything on this but a Google Map of (nearly) all TETRA radio masts in Germany. Maybe it is a good example of a working TETRA network and it's coverage planning. The first thing you might notice is the quite high number around the mountains to get a good overall coverage whereas there are few masts in flat areas - but I don't have to tell you why, do I? :)

See the map here:
https://mapsengine.google.com/map/u/0/embed?mid=z29_a38XihqQ.kc4BTTmzCF14