95960910 atoll-getting-started-umts-310-en-v1

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95960910 atoll-getting-started-umts-310-en-v1

  1. 1. AtollGetting Started-UMTS Version 3.1.0 Forsk China May 2011 Version 3.1 GSM/GPRS/EDGE UMTS/HSPA LTE CDMA2000 1xRTT/EV-DO TD-SCDMA WiMAX/BWA Microwave Links
  2. 2. Atoll Getting Started UMTS Version 3.1.0 Table of Contents1  Introduction .............................................................................................................. 4 2  Installation ................................................................................................................ 5 3  Sequence of operations .......................................................................................... 9  3.1  New project ................................................................................................ 12  3.2  Import of 3D maps ..................................................................................... 14  3.2.1  Import of heights map ......................................................................... 15  3.2.2  Import of clutter map........................................................................... 16  3.2.3  Import of vector map........................................................................... 20  3.3  Setting a coordinate system ...................................................................... 25  3.4  Network data setting .................................................................................. 30  3.4.1  Import of the Sites table ...................................................................... 31  3.4.2  Antenna parameters setting................................................................ 37  3.4.3  Transmitters parameters setting ......................................................... 42  3.4.3.1  Transmitters table ........................................................................ 42  3.4.3.2  Global Parameters ...................................................................... 46  3.4.4  Cells parameters setting ..................................................................... 49  3.4.5  Import and export ............................................................................... 53  3.4.5.1  Import Access database .............................................................. 53  3.4.5.2  Export to Access database .......................................................... 55  3.4.6  Add new sites ..................................................................................... 56  3.4.6.1  Add new sites one by one ........................................................... 56  3.4.6.2  Add a group of sites .................................................................... 57  3.4.6.3  Template management ................................................................ 59  3.5  Propagation model..................................................................................... 61  3.5.1  SPM propagation model ..................................................................... 61  3.5.1.1  Import of CW measurement ........................................................ 61  3.5.1.2  Automatic calibration of the SPM model ..................................... 68  3.5.1.3  Model validation with CW measurements ................................... 72  3.5.1.4  Set the propagation model for each transmitter .......................... 77  3.5.2  Cost-Hata model ................................................................................. 79  3.5.2.1  Import of CW measurements ...................................................... 79  3.5.2.2  Automatic calibration of the Cost-Hata model ............................. 79  3.5.2.3  Cost-Hata model properties ........................................................ 82  3.6  Propagation matrix calculation ................................................................... 85  3.6.1  Preliminary work ................................................................................. 85  3.6.1.1  Resolution of predictions and receiver altitude ............................ 85  3.6.1.2  Setting the Computation Zone ..................................................... 86  3.6.2  Propagation and prediction studies calculation................................... 92  3.6.2.1  Best server prediction ................................................................. 93  3.6.2.2  Coverage by Signal Level prediction ........................................... 96 © Forsk 2010 2/183
  3. 3. Atoll Getting Started UMTS Version 3.1.0 3.6.2.3  Overlapping Zones prediction ..................................................... 99  3.6.2.4  Force calculation ....................................................................... 101  3.6.2.5  Prediction template management .............................................. 101  3.7  Simulation ................................................................................................ 103  3.7.1  Traffic model ..................................................................................... 103  3.7.1.1  Services .................................................................................... 103  3.7.1.2  Mobility Types ........................................................................... 105  3.7.1.3  Terminals ................................................................................... 106  3.7.1.4  User Profiles.............................................................................. 108  3.7.1.5  Environments ............................................................................ 108  3.7.2  Creating Traffic Maps.........................................................................110  3.7.2.1  User profile Traffic map .............................................................. 111  3.7.2.2  User profile traffic map - User profile densities ...........................116  3.7.2.3  Sector traffic map -Throughputs in uplink and downlink .............118  3.7.2.4  Sector traffic map - Total number of users (All activity statuses) 124  3.7.2.5  Sector traffic map - number of users per activity status............. 124  3.7.2.6  User density traffic map (no. of users/km2) ............................... 124  3.7.3  Simulation ......................................................................................... 131  3.8  Point analysis tool .................................................................................... 135  3.8.1  Profile ............................................................................................... 136  3.8.2  Reception ......................................................................................... 137  3.8.3  AS Analysis....................................................................................... 137  3.8.4  SC Collisions .................................................................................... 139  3.8.5  Details............................................................................................... 139  3.9  Other prediction studies ........................................................................... 140  3.9.1  Prediction parameters setting ........................................................... 140  3.9.2  Standard prediction studies .............................................................. 143  3.9.3  HSDPA ............................................................................................. 145  3.9.4  HSUPA ............................................................................................. 155  3.9.5  Dual-Cell HSDPA Modeling .............................................................. 161  3.10  Neighbours Allocation .............................................................................. 165  3.10.1  Automatic allocation ......................................................................... 165  3.11  Scrambling Codes Allocation ................................................................... 169  3.12  Other features .......................................................................................... 175  3.12.1  User configuration function ............................................................... 175  3.12.2  Store methods for path loss matrices ............................................... 178 4  Tips and tricks ...................................................................................................... 179 © Forsk 2010 3/183
  4. 4. Atoll Getting Started UMTS Version 3.1.01 IntroductionThis document explains the entire process from the import of network data in Atoll to theproduction of prediction studies. The purpose of this document is to give an overallunderstanding for radio engineers, who never use Atoll.This document does not explain the algorithm and don’t give detailed explanation. Theuser may find in the “Technical Reference Guide” and “User Manual” the concretealgorithm and the detailed explanation of parameters.The user may find all projects and map data in the CDROM, which was provided with thisdocument.This document describes how to get started using the Atoll version 3.1.0.© Forsk 2010 4/183
  5. 5. Atoll Getting Started UMTS Version 3.1.02 InstallationThe installation of Atoll is simple and needs an administrator profile.1) The naming structure of the Atoll installation file is generally:“Atoll.language.version_number.build_number.exe”, as shown bellow:2) Before starting the installation of Atoll, the dongle has to be plugged out.3) Install Atoll by double clicking on the installation file.4) In the appeared dialog box, click on the “Next” button and choose the installation directory (the default path is C:Program FileForskAtoll). The minimum requirement for the installation of Atoll is a disk space of 111.9 MB.© Forsk 2010 5/183
  6. 6. Atoll Getting Started UMTS Version 3.1.05) In the 3rd window the user may choose “Full installation”, “Compact installation” or “Custom installation” and select the modules. The recommendation for a first installation of Atoll is “Full installation”, including Atoll, Add-ins (Export to Google Earth and Best Signal Export), Driver for Fixed License Keys, Distributed Calculation Server and Atoll Management Console. Later update of Atoll, models can be chosen to install. Please note, if Atoll has been uninstalled once, Driver for Fixed License Keys model should be installed again.© Forsk 2010 6/183
  7. 7. Atoll Getting Started UMTS Version 3.1.06) In the 4th window, fill in the “Domain”, “Username” and “Password” fields. If the user doesn’t choose previously “Distributed Calculation Server”, then he doesn’t need to fill in any information.7) Click on the “Next” button to start the installation of Atoll. After the installation, the computer needs to be restarted.© Forsk 2010 7/183
  8. 8. Atoll Getting Started UMTS Version 3.1.08) Plug in the dongle.Atoll users need to pay attention for the following 3 points: (1) It is recommended to plug in/out dongle when computer is shutting down. (2) If it is not necessary, don’t change the computer date when using Atoll. (3) If it still can not find the USB dongle driver after installed Atoll, please find and install the Sentinel Driver on Atoll installation path or download it as below: http://www.safenet-inc.com/support/tech/sentinel.asp#© Forsk 2010 8/183
  9. 9. Atoll Getting Started UMTS Version 3.1.03 Sequence of operationsThis following document presents how to establish an Atoll UMTS project and to carry outcoverage predictions, simulations and production of reports: (1) Start a new project (2) Import of 3D maps (3) Setting the coordinate system (4) Import of network data (5) Propagation model selection and calibration (6) “Best Server” and “Signal Level” coverage predictions (7) Traffic Modeling (8) Monte-Carlo simulation (9) Calculation of other prediction studies (10) Production of reportsThe operation flow chart is represented in the following figure (dashed line frames may bechosen or not).© Forsk 2010 9/183
  10. 10. Atoll Getting Started UMTS Version 3.1.0 Start Essential data collection Propagation model selection Import of 3D maps SPM model selected? Choice of coordinate system N Y Import of antenna patterns CW drive test Setting of BTS Equipments and Channel Elements Site table Adjustment of special parameters Transmitter equipments (TMA, feeder, BTS) Transmitter table Model calibration Cells table Setting of the prediction properties Drawing of the computation zone Best server coverage prediction© Forsk 2010 10/183
  11. 11. Atoll Getting Started UMTS Version 3.1.0 Traffic model adjustment Traffic modeling Environment User profiles WCDMA Traffic map Terminals parameters setting setting Mobility Services Monte-Carlo simulation N Does the traffic model satisfy? Y Commit of the simulation results Calculation of other predictions Neighbour allocation Scrambling code allocation Calculation N Do the calculation results satisfy? Y Export the calculation results© Forsk 2010 11/183
  12. 12. Atoll Getting Started UMTS Version 3.1.03.1 New projectAfter opening Atoll, click on or select File->Open.The project templates dialog box will appear. Choose “UMTS HSPA” template.Atoll opens a blank UMTS project. The new project already includes the default antennadatabase.© Forsk 2010 12/183
  13. 13. Atoll Getting Started UMTS Version 3.1.0 Explorer Window Map WindowThe Atoll main window contains an Explorer Window and a Map Window, as seen in thefigure above.© Forsk 2010 13/183
  14. 14. Atoll Getting Started UMTS Version 3.1.03.2 Import of 3D mapsIn the main tool bar, select “File->Import”.In the appeared “Open” dialog box browse the geographical map folder.© Forsk 2010 14/183
  15. 15. Atoll Getting Started UMTS Version 3.1.0Generally the following data maps need to be imported in Atoll: heights (map of thealtitude above sea level), clutter classes (type of land used) and vector (vector maps). Theorder of import is not important, but, for this document, the following order will be used:heights->clutter->vectors.3.2.1 Import of heights map1) In the “Open” dialog box, select the “Geo_DataBrusselsHeights” folder in the CDROM. Select the “index” document and click on “Open”2) In the appeared “Data Type” dialog box, click on the “Altitudes” button and click “OK”.© Forsk 2010 15/183
  16. 16. Atoll Getting Started UMTS Version 3.1.03) After the map import, the following figure appears. The “heights” map is automatically put on the left side in the explorer window under the “Geo” tab named “Digital Terrain Model”3.2.2 Import of clutter map1) Select again “File->Import” in the main toolbar. In the “Open” dialog box, select the “Geo_DataBrusselsClutterr” folder. Select the “index” document and click on “Open”© Forsk 2010 16/183
  17. 17. Atoll Getting Started UMTS Version 3.1.02) In the appeared “Data Type” dialog box, click on the “Clutter Classes” button and click on “OK”3) After the map is imported, the following figure appears. The clutter classes map is automatically put on the left side in the explorer window under the “Geo” tab named “Clutter Classes”4) Double clicking on the “Clutter Classes” folder, open the “Clutter Classes properties” dialog box for the setting of clutter parameters. Select the “Description” tab and click on the bottom right “Refresh” button. Atoll will filter the clutter classes, which are not included into the clutter map. The following figure shows the filtered tab of clutter© Forsk 2010 17/183
  18. 18. Atoll Getting Started UMTS Version 3.1.0 classes. The following parameters can be defined in the dialog box: Model Standard Deviation, EC/Io Standard Deviation, DL and UL Eb/Nt Standard Deviation, Indoor Loss, Orthogonality Factor, Indoor Loss, % Pilot Finger, Spatial Multiplexing Gain Factor and Additional Transmit Diversity Gain.Note: An additional indoor loss can now be defined per frequency band.5) These values have to be set according to the customer network, if “Use only default values” is chosen, Atoll will use default values for each clutter standard deviation.6) In the “Display” tab, adjust the display color of each clutter type. Pay attention to the “Display type” and the “Field”. The following figure is the suggested setting of© Forsk 2010 18/183
  19. 19. Atoll Getting Started UMTS Version 3.1.0 “Display tab”. Click on the color frame to change the color for each clutter type.Select “Add to legend” to display information in the legend window. Use the“Transparency” function to adjust the transparency of the map. The display of each cluttermay be disabling by unchecking the check-box.7) After setting the “Clutter Classes properties”, the clutter map will be displayed as below:© Forsk 2010 19/183
  20. 20. Atoll Getting Started UMTS Version 3.1.03.2.3 Import of vector map1) Select again “File->Import” in the main toolbar. In the “Open” dialog box, select the “Geo_DataBrusselsVector” folder. Select the “index” document and click on “Open”.© Forsk 2010 20/183
  21. 21. Atoll Getting Started UMTS Version 3.1.02) In the appeared “Data Type” dialog box, click on the “Vectors” button and click “OK”3) In the appeared “Vector import” dialog box, use the default settings and click on the “Import” button to import the map.4) After the map import, the following figure appears. The vector map is automatically put on the left side in the explorer window under the “Geo” tab named “Vectors”.© Forsk 2010 21/183
  22. 22. Atoll Getting Started UMTS Version 3.1.05) Dragging the “Vectors” folder with the mouse to the top of the explorer window, the “Vector” map will be placed as the uppermost layer, as seen in the following figure.© Forsk 2010 22/183
  23. 23. Atoll Getting Started UMTS Version 3.1.06) Double clicking on “Airport” in the “Vectors” folder, open the “airport properties” dialog box, and select the “Display” tab, as seen in the following figure.7) Clicking on the vector line to open the “Display” dialog box to set the color and style of the vector line.© Forsk 2010 23/183
  24. 24. Atoll Getting Started UMTS Version 3.1.08) As shown in the following figure, the color of the vector line is changed.9) You may modify other vector files with the same operations as for the “airport” vector file. The following figure shows all the imported digital maps.© Forsk 2010 24/183
  25. 25. Atoll Getting Started UMTS Version 3.1.03.3 Setting a coordinate systemSelect “Document->Properties”, as shown in the following figure.In the appeared “Properties” dialog box, the “Projection” and “Display” can be defined inthe “Coordinate systems” frame.1) First set the projection system (it can be known by reading the file “projection.txt” in the “heights” folder). For the demo project the projection system is “WGS 84 UTM zone 31N”. Click on the right side of the “Projection” field on , open “Coordinate systems”© Forsk 2010 25/183
  26. 26. Atoll Getting Started UMTS Version 3.1.0 dialog box and choose WGS84 UTM zones in the “Find in” box.2) Then choose WGS 84/UTM zone 31N and click “OK”.3) After the setting of parameters, the following dialog box is displayed.© Forsk 2010 26/183
  27. 27. Atoll Getting Started UMTS Version 3.1.04) Setting the “Display System”.The “Display system” function allows the user to choose the relative coordinates (X and Y,unit in meter) or the longitude and latitude for the Map Window.After having set the “Projection” system, Atoll automatically sets the “Display” system withthe same system as the “Projection” system, as shown in the figure above. The windowsmap uses relative coordinate. The display has to be set for displaying the longitude andlatitude.Click on the right side of the “Display” field on the button and open the “CoordinateSystems” dialog box. Select “WGS84 UTM zones” and choose the “WGS 84” system (withan ellipsoidal symbol).5) After the setting of parameters, the following dialog box is displayed.© Forsk 2010 27/183
  28. 28. Atoll Getting Started UMTS Version 3.1.06) After having set the “Coordinate” system, the Map Window displays the longitude and latitude, default value is xx°xx′xx.xx″S (degreed, minute and second, ”S” means southern hemisphere), as shown in the following figure.7) The user can choose the “Degree Format” among the “xx°xxxx.xx”, “xxdxxmxx.xxsS” format (“d” is degree, “m” is minute and “s” is second, ”S” means southern hemisphere), the “xx.xxxxx” format (decimal base) or the “-xx.xxxxx” format (decimal base and southern hemisphere expressed with the minus sign), as shown in the following figure.© Forsk 2010 28/183
  29. 29. Atoll Getting Started UMTS Version 3.1.0Note: If the user wants to use another projection system and wants to display thelongitude and latitude coordinates, then the display system has to be chosenaccording to the projection system name. Moreover there is an ellipsoid symbol infront of the display system.© Forsk 2010 29/183
  30. 30. Atoll Getting Started UMTS Version 3.1.03.4 Network data settingThe setting of a WCDMA project in Atoll can be done for two different cases: (1) The network is already deployed or the network data, including site location, antenna patterns and so on, already exist. (2) The network is not deployed and the user starts the network planning with site placement in the planning tool.The following part introduces the first case.All data have to be prepared in Excel, before importing them. Atoll needs an Exceldocument with network data including sites, antennas, transmitters and cells.All necessary data for the setup of the Brussels project are in the“UMTS_Brussels_Network.xls” document in the “Reference_DataNetwork_Data” folder.The “UMTS_Brussels_Network.xls” document has 5 worksheets. The network data arecontained in the first 4 worksheets and the others will be introduced later.The import of the network data must be done by a certain order. In Atoll, the order followsthe explorer window order. The following figure shows the order for the introduction of thenetwork data:Sites->Antennas->Transmitters->Cells.© Forsk 2010 30/183
  31. 31. Atoll Getting Started UMTS Version 3.1.03.4.1 Import of the Sites table1) Open the “UMTS_Brussels_Network.xls” document and select the “UMTS network - Sites” sheet. We have provided two sets of coordinate data.On the left side there are the relative coordinates and on the right side there arecoordinates with longitude and latitude.If the WGS 84 display system has been previously chosen (display mode with longitudeand latitude), the coordinate located on the right side of the sheet must be selected.Note: If the display system is set with longitude and latitude, then the longitude andlatitude data should be transform in decimal base value.© Forsk 2010 31/183
  32. 32. Atoll Getting Started UMTS Version 3.1.02) Copy the columns “Name”, “Longitude” and “Latitude” (except the title line).3) In the “Network” window, double click on the “Sites” folder (or right click on the “Sites” folder and select “Open Table”) will open the “Sites” table, as shown in the following figure.4) In the “Sites” table, select the first cell and paste the data. Except for the columns “Name”, “X” and “Y”, the others are automatically filled in with default value. Atoll will© Forsk 2010 32/183
  33. 33. Atoll Getting Started UMTS Version 3.1.0 transform automatically the longitude and latitude form decimal format to minutes and seconds system.The imported sites will be put in the “Sites” folder of the “Network” window with analphabetic order, as shown in the following figure.5) If the user wants to delete one or several sites, he can delete them in the “Sites” table or directly in the “Network” window. In the “Sites” table, click on the left grey cell of the line, which contains the site you want to delete, select the entire line, and push the keyboard “delete” button. In the “Network” window, right click on the site you want to delete and select “delete” in the menu, as shown in the following figure.© Forsk 2010 33/183
  34. 34. Atoll Getting Started UMTS Version 3.1.06) After the input of “Sites” data, the Map Window is automatically updated with the new sites. In the following figure, a black circle represents a site.7) Open the “Sites” properties dialog box (right click on the “Sites” folder and select “properties”) to change the display attributes, as shown in the following figure.© Forsk 2010 34/183
  35. 35. Atoll Getting Started UMTS Version 3.1.0Choosing “Unique” allows only a unique color for the display of sites. Choosing “Discretevalues” or “Value intervals” allows colors selection according to certain characteristics. Bydefault, a site is represented by a black circle.If necessary, the symbol and color of sites can be changed, by selecting “Properties” inthe “Actions” dialog box. The appeared “Display” window allows the selection of color andsymbol.8) Site Equipment Setting. Open the Site Equipment Table on Network Settings -> Radio Resource Management on Parameters Window to define site equipment.© Forsk 2010 35/183
  36. 36. Atoll Getting Started UMTS Version 3.1.0© Forsk 2010 36/183
  37. 37. Atoll Getting Started UMTS Version 3.1.03.4.2 Antenna parameters settingAtoll needs the following antenna’s data: antenna name, antenna gain, antenna horizontaland vertical patterns. Beamwidth, Fmin and Fmax are reference parameters and they arenot used for calculation. Atoll calculates and displays the electrical down tilt from thevertical pattern. The calculated electrical down tilt is only given for information.1) Select the “UMTS network - Antennas” sheet in the “UMTS_Brussels_Network.xls” document. As seen in the following figure, the horizontal and vertical patterns are provided.2) A few physical antenna groups can be found on Radio Network Equipment – Antennas folder on Parameters window. One physical antenna group with the same beamwidth, gain and Frequency but different Electrical Downtilt.© Forsk 2010 37/183
  38. 38. Atoll Getting Started UMTS Version 3.1.0Right click on the “Antennas” folder in the Explorer Window and select “New” in thecontext menu, as shown in the following figure.3) In the “Antennas New element properties” dialog box, the following tabs are available: “General”, “Horizontal pattern”,”Vertical pattern” and “Other properties”.© Forsk 2010 38/183
  39. 39. Atoll Getting Started UMTS Version 3.1.04) In the “General” tab, the antenna gain and the electrical tilt can be defined.Note: The electrical tilt value is only a reference information for the user and thisparameter has no impact on the calculation. Antenna gain unit may be dBi or dBd.The unit can be selected in the “Document—Properties—Units” dialog box.© Forsk 2010 39/183
  40. 40. Atoll Getting Started UMTS Version 3.1.05) Copy the two columns corresponding to the horizontal pattern of the “UMTS_Brussels_Network.xls” document, and paste it in the “Co-Polar section” of the “Horizontal pattern” tab in Atoll.6) Do the same operation for the vertical pattern.© Forsk 2010 40/183
  41. 41. Atoll Getting Started UMTS Version 3.1.0Note: Atoll allows you to enter antenna pattern attenuations for as many as 720angles. Therefore, attenuation values can also be defined for angles other thaninteger values from 0° to 359°. For example: 0, 0.5, 1, 1.5, 2, 2.5 … 359, 359.5.7) Other parameters can be set in the “Other properties” tab, but it is only reference information and it has no impact on the calculation.8) A new antenna named “UMTS Antenna Test” can be found on “Physical Antenna:60deg 17dBi 2100MHz” on Antennas folder.© Forsk 2010 41/183
  42. 42. Atoll Getting Started UMTS Version 3.1.03.4.3 Transmitters parameters setting3.4.3.1 Transmitters table1) Open the “UMTS_Brussels_Network.xls” document and select the “UMTS network - Transmitters” sheet.2) Double click on the “Transmitters” folder in “Network” window (or right click on “Transmitters” and select “Open Table”) to open the “Transmitters” tab, as shown in the following figure.© Forsk 2010 42/183
  43. 43. Atoll Getting Started UMTS Version 3.1.03) After opening the “Transmitters” table in Atoll, you will discover that the number of fields is larger than in the Excel file. It is because some of the parameters in Atoll don’t need the input from the user but Atoll will automatically fill in default values. The fields listed in the Excel document are those necessary parameters for the transmitters.Before copy/paste the Excel table in Atoll, the unnecessary columns have to be hidden. Ifthe user try to paste the data and that don’t match with the “Transmitters” tab, an errormessage will be displayed. The following figure shows that the “Columns to be Displayed”tab can be accessed under “Display Columns…”.© Forsk 2010 43/183
  44. 44. Atoll Getting Started UMTS Version 3.1.0In the “Columns to be Displayed” tab, the unnecessary fields has to be unchecked forhiding the corresponding column, as shown in the following chart. Finally the“Transmitters” tab and the Excel tab have exactly the same columns.4) Copy the transmitter’s data of the “UMTS network - Transmitters” sheet of the Excel document (except the title line) and paste it in the “Transmitters” table in Atoll, as shown in the following figure.© Forsk 2010 44/183
  45. 45. Atoll Getting Started UMTS Version 3.1.05) After the import of data in the “Transmitters” table, the Map Window will be automatically updated, without refresh or saving the document.© Forsk 2010 45/183
  46. 46. Atoll Getting Started UMTS Version 3.1.06) The toolbar’s button may zoom in or zoom out the Map Window (left click will zoom in and right click will zoom out). The toolbar’s button allows the user to choose one region to be zoomed in.7、 Pushing the toolbar’s button assigns automatically different colors for eachtransmitter in order to differentiate them, as shown in the following figure.3.4.3.2 Global Parameters1) Right click on the “Network Settings” folder on “Parameters” window, open the “Network Settings Properties” dialogue.Select the “Global Parameters” tab, as shown in the following figure.© Forsk 2010 46/183
  47. 47. Atoll Getting Started UMTS Version 3.1.0The Global Parameters tab has the following options: DL Powers: define whether the power values on the downlink are Absolute or Relative to Pilot. The power values affected are the synchronisation channel, other common channel, HS-SCCH, and HSUPA powers defined in the cell properties, as well as the minimum and maximum traffic channel powers per R99 radio bearer. Atoll automatically converts the power values defined in the cell properties (i.e., synchronisation channel, other common channel, HS-SCCH, and HSUPA powers) when you change the option. On the other hand, the values for the minimum and maximum traffic channel powers have to be modified manually. DL Load: define whether the total power values on the downlink are Absolute or a percentage of the maximum power (% Pmax). Atoll automatically converts the total power values when you change the option. Interferences: define the method used to calculate interference on the downlink (I0 and Nt): I0: Atoll will calculate I0 using the noise generated by all transmitters plus thermal noise or you can select "Without pilot" and Atoll will calculate I0 using the total noise less the pilot signal and orthogonal part of traffic channels and other common channels. Nt: Atoll will calculate Nt as the noise generated by all transmitters plus thermal noise or you can select "Without useful signal" and Atoll will calculate Nt as the total noise less the signal of the studied cell.© Forsk 2010 47/183
  48. 48. Atoll Getting Started UMTS Version 3.1.0 Handoff: define the parameters used to model soft handoff on the uplink. Default UL Macro-Diversity Gain: set a default value for the uplink gain due to macro-diversity on soft and soft-soft handovers. If you clear the Shadowing taken into account check box on the Condition tab when defining a coverage prediction or during a point analysis, Atoll uses this value. If you select the Shadowing taken into account check box on the Condition tab, Atoll calculates the UL macro-diversity gain, based on the standard deviation value of Eb⁄Nt on the uplink defined per clutter class. +MRC in Softer/Soft: Atoll selects the serving cell during a softer/soft handover by recombining the signal of co-site transmitters and multiplying the resulting signal by the rake efficiency factor and then comparing this value to the signal received at transmitters located on the other sites of the active set. Atoll chooses the greatest value and multiplies it by the macro-diversity gain. Compressed Mode: define the parameters related to compressed mode. Compressed mode is used when a mobile supporting compressed mode is connected to a cell located on a site with a compressed-mode-capable equipment and either the pilot RSCP, or the received Ec⁄I0, or both of them are lower than the defined activation thresholds. RSCP Activation Threshold: select the RSCP Active check box and enter a RSCP Activation Threshold. Ec⁄I0 Activation Threshold: select the Ec⁄I0 Active check box and enter a Ec⁄I0 Activation Threshold. Eb⁄Nt UL and DL Target Increase: When compressed mode is activated, Eb⁄Nt requirements in UL and DL are increased. In order to take this into account, Atoll adds UL and DL Eb⁄Nt target increase values to the UL and DL Eb⁄Nt requirements set for each radio bearer. HSDPA: define how total noise is calculated and how the CQI (Channel Quality Indicator) is evaluated for HSDPA. Nt: select "Total noise" and Atoll will calculate Nt as the noise generated by all transmitters plus thermal noise or select "Without useful signal" and Atoll will calculate Nt as the total noise less the signal of the studied cell. CQI: select “Based on CPICH quality” and Atoll will measure the CQI based on the pilot Ec⁄Nt or select “Based on HS-PDSCH quality” and Atoll will measure the CQI based on the HS-PDSCH Ec⁄Nt. Depending on the option selected, you will have to define either a CQI=f(CPICH Ec/Nt) graph, or a CQI=f(HSPDSCH Ec/Nt) graph in the Properties dialogue of the terminal equipment. The calculated CQI will be used to determine the best bearer.© Forsk 2010 48/183
  49. 49. Atoll Getting Started UMTS Version 3.1.03.4.4 Cells parameters setting1) Open the “UMTS_Brussels_Network.xls” document and select the “UMTS network - Cells” sheet.2) After importing transmitters, Atoll will create cells automatically. Generally, we need to delete all of the cells on Cells table to fix for “UMTS network - Cells” sheet. Right click Transmitters ->Cells->Open Table on Network window to open Cells table, select all of the cells and click “Delete”, as seen in the following figure.© Forsk 2010 49/183
  50. 50. Atoll Getting Started UMTS Version 3.1.0After deleting the cells, Cells table is empty, as seen in the following figure.3) Adjust the “Cells table” fields according to the Excel fields, copy the data of the “UMTS network - Cells” sheet and paste it the “Cells table” of Atoll, as shown in the© Forsk 2010 50/183
  51. 51. Atoll Getting Started UMTS Version 3.1.0 following figure.Note: Atoll supports transmitters with more than one cell (carrier), as shown in thefollowing figure.© Forsk 2010 51/183
  52. 52. Atoll Getting Started UMTS Version 3.1.04) The “Name” field in the “Cells” table may be set according to the user preference. In Atoll, the default name is set as: “Transmitter_name (0)”, where “0” is the carrier number.5) Frequency Bands:To open the “Frequency Bands” dialogue, select “Network Settings->Frequencies->Bands” on “Network” window.Open the “Frequency Band” dialogue. Define the central frequency, the first carrier, thelast carrier and the bandwidth. By default the first carrier is 0 and the last carrier is 2, sothere are 3 carriers. The frequency of the carrier 0 is the central frequency. This frequencyis use for the calculation of the pathloss matrices. The frequency of the carrier 1 is thecentral frequency + 5MHz. Atoll UMTS supports multi-frequency band, by adding a newfrequency band in the last line of the “Frequency Band” dialog box.Define TMA, Feeders, Transmitter Equipment and Repeater Equipment under RadioNetwork Equipment folder on Parameters window.© Forsk 2010 52/183
  53. 53. Atoll Getting Started UMTS Version 3.1.03.4.5 Import and exportThe stand alone mode does not need to connect any external database, but it can beconvenient to import/export network data from/to a database.3.4.5.1 Import Access database1) Please find the “Brussels_UMTS.mdb” document in the “Reference_DataAccess_Database” folder in the CDROM. This document is an Access database file, containing the Brussels network data (but it does not contain the map data).2) In Atoll, select “File->New->From an Existing Database”, as shown in the following figure.3) In the browsing window select the “Brussels_UMTS.mdb” document from the CDROM.© Forsk 2010 53/183
  54. 54. Atoll Getting Started UMTS Version 3.1.04) After clicking on “Open”, Atoll automatically import all network data from the database to the Atoll project.5) Using “Centre in the Map Window” to lets the sites appear in the center of the window.Note: The database does not include the map data, therefore the map data has to beimported separately.© Forsk 2010 54/183
  55. 55. Atoll Getting Started UMTS Version 3.1.03.4.5.2 Export to Access databaseWhen all network data are set in Atoll, the data may be exported to a database file, so thenetwork data can be easily shared and transferred.Select Menu “Document->Database->Export…”, and in the appeared “Export to aDatabase” dialog box, type the file name and then export the engineering data into the“.mdb” file.© Forsk 2010 55/183
  56. 56. Atoll Getting Started UMTS Version 3.1.03.4.6 Add new sitesThe steps for importing the network data into Atoll have been introduced above. Atollprovides also another method to add new sites directly in the Map Window.3.4.6.1 Add new sites one by oneClicking on the Atoll toolbar button , turn the mouse into a honeycombs shape, asshown in the following figure.In the Map Window, a new site (including 3 transmitters) can be added directly with a clickon the appropriate position. Simultaneously, Atoll adds the corresponding information intothe data sheets.Press the “Ctrl” key to lay continuously sites in the Map Window. When the laying of sitesis finished, press the “Esc” key to withdraw from the current status.It is possible to add new transmitters to an existing base station, as shown in the followingfigure.© Forsk 2010 56/183
  57. 57. Atoll Getting Started UMTS Version 3.1.0Do not select “Hexagonal Design” in the Network tab, will hide the honeycomb shape ofthe new sites.3.4.6.2 Add a group of sitesClick on the Atoll toolbar button , then a polygonal symbol will be added behind thecursor.Then draw a polygon in the Map Window to add a new group of sites inside the selectedregion. Sites will be automatically layed inside the region according to a certain inter-sitedistance, as seen in the following figure.After drawing the polygon, the following figure will appear.© Forsk 2010 57/183
  58. 58. Atoll Getting Started UMTS Version 3.1.0Similarly, Atoll will add the corresponding information to the new sites into the data sheets.If the user wants to delete a group of sites, it can be done in the “Site” table as explainabove or more quickly through the following operations:Right click on a group of the “Hexagonal Design” folder and select “Delete”, then the entiregroup of sites will be deleted.© Forsk 2010 58/183
  59. 59. Atoll Getting Started UMTS Version 3.1.03.4.6.3 Template managementIn the previous sections, a new group of sites have been added by selecting a templateand by drawing a polygon. Atoll allows the user to choose among different templates andto edit a specific template.The templates are available in the Atoll toolbar, as shown in the following figure.Select Station Tamplates under Network Settings folder on Parameters window to managestation tamplates.The user can edit the template’s parameters by clicking on “Properties” button. The usermay also add a new template or delete an existing one.© Forsk 2010 59/183
  60. 60. Atoll Getting Started UMTS Version 3.1.0In the appeared dialog box, the template’s properties can be edited (for example, thenumber of sectors, the antenna model, the azimuth, the tilt, the height and so on).© Forsk 2010 60/183
  61. 61. Atoll Getting Started UMTS Version 3.1.03.5 Propagation modelAtoll integrates many propagation models including Okuruma-Hata, Cost-Hata, SPM.ITU370, ITU526, ITU 529, Longley-Rice, Erceg-Greenstein(SUI) and WLL models. Thefollowing models are the most commonly used for UMTS projects: Okuruma-Hata,Cost-Hata and SPM.3.5.1 SPM propagation modelSPM (Standard Propagation Model) is a model originating from Planet and using Kparameters. The SPM model has also a relation with the Hata model. The SPM modelmay be calibrated with CW measurements.3.5.1.1 Import of CW measurementNote: the CW measurements used by this document are just for the purpose ofhelping the user to be familiar with the use of the software. The detailedrequirements for CW measurements (including data quantity) are described in theSPM model calibration document, which can be provided upon request.To import the measurements, there are 2 methods: Copy/Paste and import.1) Copy/Paste method (1) Open the “Site89_2 survey” worksheet in the “UMTS_Brussels_Network.xls” document. This worksheet provides the measurements corresponding to the “Site89_2” cell with the longitude, the latitude and the received signal level for each sampling point (2) In Atoll, right click on the “CW Measurements” folder in the “Network” window, and© Forsk 2010 61/183
  62. 62. Atoll Getting Started UMTS Version 3.1.0 select “New” in the context menu, as shown in the following figure. (3) In “New CW Measurement Path” dialog box, fill in the file name, the corresponding transmitter, the receiver height. Then paste the Excel table data into the table, as shown in the following figure.Note: Set the coordinate system with “WGS84” corresponding to the projectionsystem use in the Excel tab.© Forsk 2010 62/183
  63. 63. Atoll Getting Started UMTS Version 3.1.0After clicking on “OK”, the test data are immediately displayed on the Map Window. Eachpoint represents a measurement sampling.© Forsk 2010 63/183
  64. 64. Atoll Getting Started UMTS Version 3.1.02) Import method (1) Atoll supports the formats .dat, .txt, .csv and .hd (PlaNET). (2) Please find 3 .txt documents inside the “Reference_Data” folder of the CDROM. (3) In Atoll, right click on “CW measurements” in the “Network” window and select “Import” as shown in the following figure. (4) In the appeared “Open” dialog box, browse for the document to be imported. Atoll supports the multi selection of files. Several measurements corresponding to the same transmitter can be imported at the same time, but if the measurements belong to different transmitters, then each measurement has to be imported separately.Provided test data corresponding to different transmitters, the measurements have to beimported one by one.© Forsk 2010 64/183
  65. 65. Atoll Getting Started UMTS Version 3.1.0 (5) The appeared dialog box contains two tabs, “General” and “Setup”. In the “General” tab, define the corresponding reference transmitter, the frequency and receiver height, as shown in the following figure. (6) In the “Setup” tab, fill in the “1st Measurement Row” field with 2 (because the drive© Forsk 2010 65/183
  66. 66. Atoll Getting Started UMTS Version 3.1.0 test document has a title line and the data start at the second line). Then click on the “Setup” button. (7) After clicking on the “Setup” button, the “CW Measurement Setup” dialog box appears, as shown in the following figure. Define “X-Coordinates” and “Y-Coordinates” fields with respectively the longitude and latitude. (8) Click on the “Import” button in the import main window and then the measurement data will be imported into the project. After the import, the measurement data will be automatically put in the “CW Measurements” folder of the “Network” Window.© Forsk 2010 66/183
  67. 67. Atoll Getting Started UMTS Version 3.1.0 Use “Centre in the Map Window” function to display the imported measurements in the center of the map.Import also the “Measures_Site69_U1_Street.txt” and the“Measures_Site69_U3_Street.txt” documents into the project by the similar operationsabove. Please note that the 3 measurements files correspond to different transmitters. (9) Setting of the CW measurements display — — double click on the “CW measurement” folder and open the “CW measurements properties” dialog box. In the “Display” tab, define the “Display type” as “Value Intervals” and “Field” as “M(dBm)”.© Forsk 2010 67/183
  68. 68. Atoll Getting Started UMTS Version 3.1.03.5.1.2 Automatic calibration of the SPM modelA good propagation model calibration requires having enough data, filtering them andcarrying a careful tuning of each factor of the model. The tuning steps are quite complex,which is not described in details in this document. A document of specific SPM modelcalibration can be provided upon request.Bellow the SPM model basic operations are introduced.The SPM automatic calibration may help the user to find the best K parameters, the“Effective antenna height” method, the “Diffraction” method and the clutter losses. (1) Duplicate the existing standard propagation model and make the calibration for the duplicated model. This method has the advantage to preserve the existing model and to allow a calibration of the SPM for each kind of environments. (2) Right click on the Copy of Standard Propagation Model and select “Calibration...”. Select the CW measurement(s) and click on the “Next” button.© Forsk 2010 68/183
  69. 69. Atoll Getting Started UMTS Version 3.1.0 (3) In the appeared dialog box, select the K parameters that will be used for the calibration. It is recommended not to select the K6 parameter.Double click on a K parameter or select a K parameter and click on “Define Range”, willopen the “Define Domain” dialog box, where the range of the K parameter can be defined,as shown in the following figure. But generally it is recommended to keep the defaultvalues defined above.© Forsk 2010 69/183
  70. 70. Atoll Getting Started UMTS Version 3.1.0After choosing the range, click on “OK”. (4) According to the selected CW measurements and the tuning parameters, Atoll calibrates automatically the SPM propagation model. (5) After the computation, Atoll provides in the same dialog box the results and the statistics concerning the model, as the average error and the standard deviation. According to the results, the user may choose to commit the K parameters list by clicking on the “Commit” button.© Forsk 2010 70/183
  71. 71. Atoll Getting Started UMTS Version 3.1.0Note: the automatic model calibration is only a mathematical computation method.The result depends on the quality of the CW measurements. Therefore a highquality of CW measurements is required. (6) If the results are not satisfactory and the K parameters have been already committed, the propagation model can be deleted by right clicking on it and selecting “Delete” (or by pressing the “Delete” key on the keyboard). (7) If after the calibration, the model has to be used in other projects, copy it by with CTRL+C and paste it with CTRL+V in the “Modules” tab of another project.© Forsk 2010 71/183
  72. 72. Atoll Getting Started UMTS Version 3.1.03.5.1.3 Model validation with CW measurementsNormally, the validity of the model is checked with the standard deviation. The lower thevalue is, the better the model is. Generally, the standard deviation has to be less than 8dB.Another method is using the analysis tool to compare each measurement point to theassociated prediction.1) Right click on the CW measurement in the “Network” window. Then select “Properties” in the context menu.2) On the appeared properties dialog box, select the calibrated propagation model and click on “OK”.© Forsk 2010 72/183
  73. 73. Atoll Getting Started UMTS Version 3.1.03) Right click on the CW measurement and select “Refresh Geo Data”.4) Afterward right click on the CW measurement and select the “Calculations-> Calculate Signal Levels” function.© Forsk 2010 73/183
  74. 74. Atoll Getting Started UMTS Version 3.1.05) So the selected propagation model will be used. Right click on the CW measurement and select “Display Statistics”. Atoll will display the statistics report and the standard deviation of the measurement is available.6) Right click on the CW measurement and select “Open the Analysis Tool”.© Forsk 2010 74/183
  75. 75. Atoll Getting Started UMTS Version 3.1.0Atoll displays automatically the “CW measurements” window, as shown in the followingfigure. With the cursor clicking in the “CW measurements” window and Atoll willsimultaneously represent the drive test position in the Map Window. For the selected pointAtoll provides the measurement value (M) and the predicted value (P). On the right of the“CW measurements” window the user can add an additional result, as the differencebetween M and P.© Forsk 2010 75/183
  76. 76. Atoll Getting Started UMTS Version 3.1.0Note: For the document with the detailed model calibration operations, pleasecontact Atoll support team.© Forsk 2010 76/183
  77. 77. Atoll Getting Started UMTS Version 3.1.03.5.1.4 Set the propagation model for each transmitterAfter the calibration of the propagation model, open the “Transmitters” tab and select thepropagation model in pull-down menu of the “Main propagation model” field. The user mayuse Ctrl + D.If all transmitters use the same propagation model, then the quickest way is to define themodel in the “Transmitters properties” dialog box. In the “Propagation” tab, select thepropagation model and choose the radius and the resolution (Normally the resolution isthe same as the digital map).© Forsk 2010 77/183
  78. 78. Atoll Getting Started UMTS Version 3.1.0© Forsk 2010 78/183
  79. 79. Atoll Getting Started UMTS Version 3.1.03.5.2 Cost-Hata modelOkuruma-Hata and Cost-Hata use both the standard Hata formula. The Okuruma-Hata issuitable for a frequency smaller than 1500MHz and Cost-Hata is suitable for a frequencybigger than 1500MHz. So Cost-Hata will be used for a CDMA network.Both Okuruma-Hata and Cost-Hata can be calibrated. The following paragraph introducesonly the calibration of the Cost-Hata model, but the calibration of the Okuruma-Hata modelis similar.3.5.2.1 Import of CW measurementsPlease refer to the paragraph 3.5.1.1.3.5.2.2 Automatic calibration of the Cost-Hata modelThe following paragraph does not make an exhaustive introduction of the automaticcalibration of the Cost-Hata model. Automatic calibration is quite complex because of thedetailed adjustment steps. Please contact the Atoll Support Team for more information.Firstly, the CW measurements must be in a sufficient number and of good quality, in orderto calibrate accurately the Cost-Hata model.The Cost-Hata calibration tool might help the user to find the best A1, B1, DiffractionFactor and Formula Correction for each type of clutter.1) Right click the Cost-Hata model and select “Duplicate” will duplicate the Cost-Hata model. So, the calibration will not affect the parameters of the existing Cost-Hata model.© Forsk 2010 79/183
  80. 80. Atoll Getting Started UMTS Version 3.1.02) Double click on the folder “Copy of Cost-Hata” will open the properties dialogue. The Cost-Hata propagation model can use an environment formula appropriate to each clutter class when calculating. Furthermore, Cost-Hata propagation model can “add diffraction loss” and take into account “limitation to free space loss”. Add diffraction loss: The Cost-Hata propagation model can take into account losses due to diffraction, using a 1-knife-edge Deygout method, and using the ground altitude given in the DTM. The diffraction can be weighted for each Hata environment formula. Limitation to free space loss: When using a Hata-based propagation model, it is possible to calculate a theoretical path loss that ends up being lower than the free space loss. In Atoll, you can define any Hata-based propagation model to never calculate a path loss that is lower than the calculated free space loss per pixel.3) Right click on the folder “Copy of Cost-Hata” and select “Calibration” will open the calibration wizard. Select one or several CW measurement(s) and click “Next”, as shown in the following figure.© Forsk 2010 80/183
  81. 81. Atoll Getting Started UMTS Version 3.1.04) In the appeared dialogue select the parameters that Atoll will calibrate and click “Next”, as shown in the following figure.5) Atoll automatically calibrates the Cost-Hata model and displays the parameters before and after the calibration. Atoll provides also the root mean square, the average and the standard deviation before and after the calibration. According to the results the user can choose to commit the result by clicking on the “Commit” button.© Forsk 2010 81/183
  82. 82. Atoll Getting Started UMTS Version 3.1.06) If a propagation model is not useful, it’s easy to delete it by right clicking on the Cost-Hata model and select “Delete” or use the “Delete” key on the keyboard.7) If the user wants to use the propagation model in another Atoll project, just copy the existing propagation model with CTRL+C and then paste it in the new project with CTRL+V.3.5.2.3 Cost-Hata model properties1) Double click on “Copy of Cost-Hata” in “Parameters” window (or right click on the “Copy of Cost-Hata” icon and select “Properties”) will open the “Copy of Cost-Hata properties” dialog box.© Forsk 2010 82/183
  83. 83. Atoll Getting Started UMTS Version 3.1.02) In the “Copy of Cost-Hata properties” dialog box, the propagation formula has to be set for each kind of clutter. Click on the “Formulas” button on the bottom left for checking “Copy of Cost-Hata” formulas and default values. The propagation parameters have to be set according to the user experience.3) Set the appropriate formula for each kind of clutter in the “Copy of Cost-Hata” properties dialog box. The following figure is an example of the “Copy of Cost-Hata” properties setting (the properties dialog box has to be set according to the user’s network environment).© Forsk 2010 83/183
  84. 84. Atoll Getting Started UMTS Version 3.1.04) The next step is to set up the “Copy of Cost-Hata” model for all transmitters. Right click on the ”Transmitter” folder on “Network” window, select “Properties”, and open the “Transmitters properties” dialog box. In the appeared dialog box, select the “Propagation” tab and select “Copy of Cost-Hata” for the propagation model, as shown in the following figure.© Forsk 2010 84/183
  85. 85. Atoll Getting Started UMTS Version 3.1.03.6 Propagation matrix calculation3.6.1 Preliminary workBefore launching the calculation of the pathloss matrices, the following preliminary workhas to be done.3.6.1.1 Resolution of predictions and receiver altitudeThe user needs also to set the resolution for coverage studies. This resolution may beequal or lower than the map’s accuracy. The higher the resolution is the longer theprocessing time is.1) Right click on the “Predictions” folder of the “Network” window and select “Properties” (or double click directly on the “Prediction” folder).2) In the “Predictions properties” dialog box, set the “Default resolution” value to 20m (this will be the resolution for the following prediction studies). Clicking on “Private Directory” allows the user to select the path loss document, which will be used to store the pathloss matrices. The user can either select the “Embedded” option to store the pathloss matrices in the current Atoll project, or select the “.xxxxx.losses” option to store the pathloss matrices in the external “.losses” folder which in the same directory of the ATL file, or use the “Browse” option to select a folder to store the pathloss matrices externally.© Forsk 2010 85/183
  86. 86. Atoll Getting Started UMTS Version 3.1.03.6.1.2 Setting the Computation ZoneIf there is no computation zone defined, the pathloss matrices for all transmitters will becalculated, based on the calculation radius and the signal threshold.If the user wants to calculate the pathloss matrices only for a specific region, aComputation Zone can either be imported or directly drawn in the Map Window.1) Drawing the Computation Zone (1) Right click on “Computation Zone” in the “Geo” tab of Explorer Window and select “Draw” in the context menu.© Forsk 2010 86/183
  87. 87. Atoll Getting Started UMTS Version 3.1.0 (2) Then draw a polygon with the mouse to delimitate the region, for which the propagation will be calculated. (3) You can also create a computation zone to be a polygon, rectangle or combine/delete/split vector objects by using the Vector Editor on toolbar as follows:© Forsk 2010 87/183
  88. 88. Atoll Getting Started UMTS Version 3.1.02) Import of the Computation Zone (1) Right click on “Computation Zone” in the “Geo” tab of the Explorer Window and select “Import” in the context menu. (2) In the appeared dialog box, browse for the “Reference_DataComputation_Zone” folder in the CDROM and open the “Brussels_Computation_Zone.mif” document.© Forsk 2010 88/183
  89. 89. Atoll Getting Started UMTS Version 3.1.0 (3) After opening the document, the “Vector Import” dialog box will appear, as shown in the following figure. Press the “Import” button to import the computation zone. (4) After the import, the computation zone will appear in red, as seen in the following figure.© Forsk 2010 89/183
  90. 90. Atoll Getting Started UMTS Version 3.1.0 (5) Right click on “Computation Zone” in the “Geo” tab and select “Export”. Then export the computation zone with .MIF, .agd (Atoll map format) or .shp format. This computation zone can be imported in other projects.© Forsk 2010 90/183
  91. 91. Atoll Getting Started UMTS Version 3.1.0© Forsk 2010 91/183
  92. 92. Atoll Getting Started UMTS Version 3.1.03.6.2 Propagation and prediction studies calculationThe calculations in Atoll are divided in two parts, pathloss matrices calculation andprediction study calculations.Propagation calculation: Calculation of the propagation loss of the link between each transmitter and each pixel. The calculation results will be saved in the path loss matrices. The pixel size is the transmitter calculation resolution.Coverage study prediction Atoll reads the data from the pathloss matrices, which was calculated previously, and make a post processing to calculate and display the coverage study.If the pathloss matrices have been calculated and there is no modification on the RFparameters (e.g. the site location, the antenna model, the azimuth and so on), Atoll doesnot automatically recalculate the pathloss matrices. If some of the RF parameters of sometransmitters are changed, Atoll will recalculate the pathloss matrices for thesetransmitters.Right click on the folder “Predictions” in the “Network” tab and select “New”, as shown inthe following figure.In the appeared “Prediction Types” dialog box, Atoll provides by default 14 types ofpredictions. The first 5 predictions are concerning the DL pilot power without knowing theload conditions, so the predictions can be done before the Monte Carlo simulation.© Forsk 2010 92/183
  93. 93. Atoll Getting Started UMTS Version 3.1.03.6.2.1 Best server prediction1) Select “Coverage by Transmitter” and clicking “OK”, then open the “Coverage by Transmitter properties” dialog box. In the “General” tab, the “Resolution” of the prediction can be set.2) In the “Condition” tab, set the “Signal level” threshold (for example -120dBm) and select “Best Signal Level” in the Server’s field.© Forsk 2010 93/183
  94. 94. Atoll Getting Started UMTS Version 3.1.0The default value for the Cell Edge Coverage Probability is 75%. If the standard deviationis set in the Clutter Classes properties, Atoll will use this value to calculate the ShadowingMargin. Atoll supports Cell Edge Coverage Probability lower than 50%.3) In the “Display” tab, define the display attributes, such as coverage transparency and so one.© Forsk 2010 94/183
  95. 95. Atoll Getting Started UMTS Version 3.1.04) Click on the “OK” button to close the dialog box. Clicking on the toolbar button (or F7 on the keyboard), Atoll starts the computation and open automatically the “Event viewer” window, which shows the prediction calculation progress.If the “Propagation calculation” is already calculated, Atoll will start the computation of thecoverage study.Each prediction study is stored automatically in the “Prediction” folder of the “Network”window, as shown in the following figure.The generated prediction study is locked automatically. So if any parameters are changedthis prediction study result will not be changed.If the prediction study has to be recomputed, right click on this prediction study and unlockthe study before starting the computation.© Forsk 2010 95/183
  96. 96. Atoll Getting Started UMTS Version 3.1.03.6.2.2 Coverage by Signal Level prediction1) In the “Prediction Types” dialog box select “Coverage by Signal Level”.2) In the “Condition” tab, fill in -120dBm for the signal level threshold and select “All” for the Server’s field.© Forsk 2010 96/183
  97. 97. Atoll Getting Started UMTS Version 3.1.03) In the “Display” tab, the user can set the display attributes, such as the intervals for the predicted values, the color and so one. The Min and Max values and the colors can be set by clicking on “Actions->Shading”.4) After defining the properties, similarly as for the “Best Server prediction”, click on the toolbar button (or on the keyboard F7), to start the computation.Note: Previously Atoll already calculated the pathloss matrices with the “Coverageby transmitters” prediction. For the “Signal Level” prediction, there is no change ofRF parameters, so this time Atoll calculates only the prediction.© Forsk 2010 97/183
  98. 98. Atoll Getting Started UMTS Version 3.1.05) The prediction of the coverage by signal level is represented in the following figure.6) Selecting “View->Legend Window”, displays the legend in the Map Window.© Forsk 2010 98/183
  99. 99. Atoll Getting Started UMTS Version 3.1.07) Tip textFor most object types, such as sites, transmitters, prediction maps, information abouteach object can be displayed on the map window in the form of a tool tip that is only visiblewhen the pointer is over the object.To activate the tool tip function, click the Display Tips button on the toolbar.Note: If more than one coverage prediction is displayed on the map, the tool tipsdisplay the tip text for all the coverage predictions available.3.6.2.3 Overlapping Zones prediction1) Select “Overlapping Zones” in the “Prediction Types” dialog box.2) In the “Condition” tab, set the signal level threshold to -120dBm, select “Best Signal Level” for the server field and set the “Margin” to 5dB.© Forsk 2010 99/183
  100. 100. Atoll Getting Started UMTS Version 3.1.03) The coverage map is shown in the following figure.“Number of servers >=2” represents the region where the received signal level from© Forsk 2010 100/183
  101. 101. Atoll Getting Started UMTS Version 3.1.0different pilots have a difference less than 5dB.“Number of servers >=3” represents the region where the received signal level of 3different pilots have a difference less than 5dB. And so one。3.6.2.4 Force calculationIf there is no change in the RF parameters, Atoll won’t recalculate the pathloss matricesbefore calculating a prediction. But Atoll also provides the “Force Calculation” function,which can force the calculation of the pathloss for all transmitters.Click on the toolbar button to force the recalculation of all path loss matrices.3.6.2.5 Prediction template managementIf the prediction default values don’t match the user’s need, Atoll allows the user to save aprediction template in order to store the parameters setting.1) Right click on a prediction study and choose “Save as a Customised Prediction”.2) A “Save as” dialogue window will prompt up. Define the name and the path of the XML file you would like to save, as shown in below the figure. By default, the storage path is the installation folder of Atoll. All the customized prediction studies are saved in this Studies.XML file.© Forsk 2010 101/183
  102. 102. Atoll Getting Started UMTS Version 3.1.03) The prediction template will be added in the “Prediction Types” dialog box.4) If you want to delete this template, select it and click “delete” button.© Forsk 2010 102/183
  103. 103. Atoll Getting Started UMTS Version 3.1.03.7 Simulation3.7.1 Traffic modelThe UMTS traffic model depends of the UMTS Parameters of the “Parameters” window:“Environments”, “User Profiles”, “Terminals”, “Mobility Types” and “Services”.3.7.1.1 Services1) By default, Atoll provides 7 kinds of service types. Double clicking on the “Voice” type will open the “Voice properties” dialog box.© Forsk 2010 103/183
  104. 104. Atoll Getting Started UMTS Version 3.1.02) Set the Uplink and Downlink Activity Factors/Average requested throughput in the “General” tab.3) On “UMTS” tab to define other parameters of the service. For more information, please refer to User Manual.© Forsk 2010 104/183
  105. 105. Atoll Getting Started UMTS Version 3.1.04) R99 Radio Bearer. Click on the button on the right of the field “R99 Radio Bearer”. In the appeared dialog box “LCD12 properties” define the Nominal Rate, the Coding Factor, the Spreading Factor, the DPCCH/DPCH Power Ratio, the Min Allowed Downlink Traffic Channel Power and the Max Allowed Downlink Traffic Channel Power.5) The user can specify a new type of Service —— Right click on the “Services” folder, select “New” and set up all the parameters in the appeared dialog box.3.7.1.2 Mobility Types1) Atoll provides by default 3 Mobility Types (the name depends of the speed). Double clicking on the “50km/h” mobility opens the “50 km/h properties” dialog box.2) In the “General” tab define the speed of mobility.© Forsk 2010 105/183
  106. 106. Atoll Getting Started UMTS Version 3.1.03) In the “UMTS” tab define the Ec/Io Threshold and the HS-SCCH Ec/Nt Threshold according to the mobility.4) The user can specify a new type of Mobility —— Right click on the “Mobility Types” folder, select “New” and set up all the parameters in the appeared dialog box.3.7.1.3 Terminals1) Atoll provides 4 kinds of Terminals by default. Double click on “Mobile phone” and open the “Mobile phone properties” dialog box.2) In the “General” tab define the name.© Forsk 2010 106/183
  107. 107. Atoll Getting Started UMTS Version 3.1.03) In the “UMTS” tab define the UMTS Equipment, the Noise Figure, the Min and Max Power, the Gain, the Losses, the Active Set Size. And whether the Terminal supports HSDPA and HSUPA. For more information, please refer to User Manual.4) The user can specify a new type of terminal —— Right click on the “Terminals” folder, select “New” and set up all the parameters in the appeared dialog box.© Forsk 2010 107/183
  108. 108. Atoll Getting Started UMTS Version 3.1.03.7.1.4 User Profiles1) Atoll provides by default 2 kinds of user profiles. Double click one “Business User” to open the open the “Business User properties” dialog box.2) Various parameters can be set up in the “General” tab. For CS services, fill in the “Terminal”, “Calls/hour” and “Duration” fields. For PS services, fill in the “Terminal”, “Calls/hour”, “UL Volume (Kbytes) and “DL Volume (Kbytes)” fields.3) The user can specify a new type of User Profile. Right click on the “User profiles” folder, select “New” and set the parameters in the appeared dialog box.3.7.1.5 Environments1) Atoll provides by default 4 kinds of Environments (classify by clutter name). Double click on “Dense Urban” and open the “Dense Urban properties” dialog box.© Forsk 2010 108/183
  109. 109. Atoll Getting Started UMTS Version 3.1.02) Various parameters can be set up in the “General” tab. For each kind of “User Profile”, fill in the corresponding “Mobility” and “Density” fields.3) In the “Clutter Weighting” tab, the user can specify a weight and an indoor percentage for each clutter class. The higher the weight is, the higher the user density is. If the weight is 0 for a specific clutter, then no user will be distributed on this clutter.© Forsk 2010 109/183
  110. 110. Atoll Getting Started UMTS Version 3.1.03.7.2 Creating Traffic MapsAtoll provides 3 different methods to create the traffic maps.1) User profile traffic map User profile environments User profile densities2) Sector traffic maps Uplink and Downlink Throughputs Total Number of Users (All Activity Statuses) Number of Users per Activity Status3) User density traffic maps per (No. of Users/km2) All activity statuses Active in uplink Active in downlink Active in uplink and downlink InactiveRight click on “Traffic” in the “Geo” tab and select “New map”, as seen in the followingfigure.In the appeared “New traffic Map” dialog box, the above 3 methods for traffic map creationcan be selected, as shown in the following figure.© Forsk 2010 110/183
  111. 111. Atoll Getting Started UMTS Version 3.1.0In the following paragraphs, 3 methods for traffic map creation will be introduced with thereference data from the CDROM.3.7.2.1 User profile Traffic mapThis kind of traffic map can be drawn manually or imported from external files.1) Draw manually (1) In the “New Traffic Map” dialog box, select “User profile traffic map” and “User profile environments”, then click on “Create”. (2) Atoll will display the “Environment map editor” on the top of the Map Window. In the “Environment map editor”, the user can choose one kind of environment, like “Suburban”© Forsk 2010 111/183
  112. 112. Atoll Getting Started UMTS Version 3.1.0 (3) Then click on the button to draw a polygon in the desired area corresponding to a “Suburban” environment, as shown in the following figure. (4) With the same method draw the “Dense Urban” zone.© Forsk 2010 112/183
  113. 113. Atoll Getting Started UMTS Version 3.1.0 (5) If the drawing polygon is not good, it can be deleted with the button.2) Import a traffic mapIn the “Reference data traffic Raster_Traffic” folder of the CDROM, a traffic map isprepared. It is the same map as the clutter map.Note: The clutter map can be used as a traffic map, especially for complexenvironments, because it is difficult to draw manually this kind of map. (1) Select “User profile traffic map” and “User profile environments” in the “New traffic Map” dialog box and then click on the “Import” button. (2) In the appeared dialog box, select the “Reference data Traffic Raster_Traffic© Forsk 2010 113/183
  114. 114. Atoll Getting Started UMTS Version 3.1.0 BIndex” in the CD and import it. (3) Atoll will automatically open the “User profile environment based traffic map properties” dialog box where the user can define the display color, the legend and the code for each environment.© Forsk 2010 114/183
  115. 115. Atoll Getting Started UMTS Version 3.1.03) Export a traffic mapA traffic map can be exported from the Atoll document.Right click on the “User profile environment based traffic map” folder and select “Save As”to export the traffic map.© Forsk 2010 115/183
  116. 116. Atoll Getting Started UMTS Version 3.1.03.7.2.2 User profile traffic map - User profile densitiesThis kind of traffic map may also be drawn manually or imported from external files.The drawing method is the same of the method introduced for the traffic map “Map Basedon Environments”. In the following part, the method for importing a traffic map from the CDis introduced.1) Select “User profile traffic map” and “User profile densities” in the “New Traffic Map” dialog box and then click on the “Import” button.2) In the appeared dialog box, select the “Reference_DataTrafficVector_TrafficAirportAirport_Building.mif” file from the CDROM and import it.© Forsk 2010 116/183
  117. 117. Atoll Getting Started UMTS Version 3.1.03) After clicking “Open” button, define the coordinate system and click “Import” in the “Vector Import” dialog box.4) In the appeared dialog box, select the “Traffic” tab to define the indoor percentage and the weight for each clutter.© Forsk 2010 117/183

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