Walk Through Wi Max

>> WiMAX Walkthrough

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Last updated December 12, 2014

Mentum Planet Walkthrough

Mentum Planet Walkthrough topicsMentum Planet Walkthrough topics are intended to provide you with some understanding ofthe basic concepts of network modeling using Mentum Planet in order for you to quickly andeasily familiarize yourself with the software. The project you will be working with has beenpre-configured to illustrate the steps in the workflow. You can, however, use it to furtherexplore the features of Mentum Planet. Ensure you have installed Mentum Planet on yourcomputer and set aside approximately two hours to complete all the walkthrough topics.

While no prior knowledge of Mentum Planet is required to complete the walkthrough, it isassumed that you know how to access ToolTips and shortcut menus, move and copy objects,select multiple objects using the Shift or Ctrl key, resize dialog boxes, expand and collapsefolder trees. It is also assumed that you are using the standard Windows desktop.

The Mentum Planet interface has been designed to provide easy access to the mainworkflows you follow as you design and optimize a wireless network. It consists of thefollowing elements:

n Project Explorer—provides quick and easy access to Mentum Planet functionality froma central location. By default, it is docked to the left but you can customize the locationof the Project Explorer to suit your needs.

n Mentum Planet menus—provide an alternate way of accessing Mentum Planetfunctionality.

n Toolbars—provide an alternate way of accessing Mentum Planet functionality.Commonly used toolbars include the Main toolbar, the Site toolbar, the Analysistoolbar, and the Network toolbar.

A Mentum Planet project contains all of the information pertaining to a particular wirelessnetwork. It consists of a collection of files and folders. Each project has a project (.planet)file that defines the project structure and references the associated data (planet.dat) file. Tobegin the walkthrough, you must first download the dataset.

There are three walkthrough tutorials available:

n LTEn WiMAXn WCDMA

Note: In order to complete the walthrough, you require a valid license for the technologyyou are using. A walkthrough is available for LTE, WiMAX, and WCDMA. If you do not havethe appropriate license, contact Customer Support to obtain a temporary license.

Procedure

To download and unzip the pre-configured project1. Click the e-Delivery Center Login Now button on the InfoVista website at

http://infovista.info/customer-support/wireless-planning-optimization-product-

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http://www.infovista.com/services/customer-support/wireless-products

http://infovista.info/customer-support/wireless-planning-optimization-product-downloads


downloads.2. In the Releases and Patches section, enter your Product ID and click the Login

button.3. On the left-hand side of the page, select Product Downloads.4. Type the product password you received from your Customer Support Center in the

box beside the version of Mentum Planet that you want to download and click Submit.5. Unzip or extract the tutorial dataset to your C drive.

A folder is created containing all project files.

6. Double-click the Mentum Planet (.planet) project file to open the project in MentumPlanet.

The project opens in the Map window.

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http://infovista.info/customer-support/wireless-planning-optimization-product-downloads


Defining project settingsProject settings encompass all the parameters that determine how a project is displayed andwhat it contains. They define the geodata to be used, the coordinate system to adhere to aswell as the workspace associated with it. It is the MapInfo workspace (.wor) file that storesthe list of all tables, windows, and settings you are using. Using a workspace and theautosave feature, you can ensure a project looks exactly the same every time you open it.Workspaces enable you to work more efficiently and eliminate the need to open map layersindividually each time you view a project.

You can also define custom data definitions that can be used to add custom attributes toproject entities such as base stations, sites, sectors, repeaters, and antennas. This data is,however, stored locally and cannot be shared using Data Manager.

In this walkthrough, you will browse project settings and associate a workspace with theproject.

Note: Before beginning the walkthrough, download the dataset. See It is best tocomplete walkthrough topics in the order they are presented.

Tip: This walkthrough is available as a print-ready PDF.

Procedure

To associate a workspace with the project1. With the WiMAX TDD project open in Mentum Planet, do one of the following:

n Choose Edit > Project Settings.

n Click the Project Settings button on the Network toolbar.2. On the General tab, in the Workspace section, click Browse, navigate to the

ProjectOpening.wor file saved in the project folder, and click Open.

The Workspace label is now blue to indicate that a change has been made but notapplied to the project.

3. Enable the Workspace Autosave check box.

Using the workspace autosave feature ensures that the next time the project isopened, it will look exactly as it did when it was last closed.

4. Click the Coordinate System tab.

This is where you can change the coordinate system used for site data.

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5. To define a custom attribute that will enable you to specify the street address foreach site, do the following:

n Click the Custom Data tab.n In the tree view, choose Site and click the Text tab.n Click Add.n Click in the Name field and type Street Address.

6. Click OK.7. Choose File > Close Project to close the project or press CTRL+F3.8. In the Planet confirmation dialog box, click Yes.9. When prompted to save your changes, click Yes.

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Customizing your workspaceYou can change how your workspace is organized in order to better visualize how thenetwork performs. You can also define preferences that affect how your workspacefunctions. These settings are preserved between Mentum Planet sessions.

In this walkthrough, you will change how the heights and clutter file are displayed and opena vector road file. You will also specify user preferences.


Tip: To dock and undock toolbars, choose GIS > Options > Toolbars.

Procedures

To customize your workspace1. To open the project, in Mentum Planet, choose File > Recent Projects > WiMAX FDD.

The entire project path is displayed in the information bar at the bottom of the MentumPlanet window.

2. On the Main toolbar, click the Layer Control button.3. In the Layer Control window, select the Toronto30m_Heights file.

4. Click the Layer Properties button.5. In the Layer Properties dialog box, in the Display Mode section, enable the Style

Override check box.

6. Click the style override button.7. In the Adjust Image Styles dialog box, in the Conversions section, choose Grayscale

and click OK.8. In the Layer Properties dialog box, click OK.9. In the Layer Control window, select the Toronto_Clutter file and click the Layer

Properties button.10. In the Enhanced Rendering section, type a translucency value of 60%, and click OK.11. In the Layer Control window, select the clutter file and drag it above the heights file.

The clutter file displays on top of the heights file.

12. Close the Layer Control window.13. In the Project Data category, within the Geodata folder, expand the Custom folder.14. Right-click the Highways.tab file and choose View.

15. On the Main toolbar, click the Zoom In button to better view sites and highways.16. To remove the vector file, right-click the toronto_highway.tab file and choose View

again.

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The checkmark next to the View command is no longer displayed to indicate that thehighways are no longer shown in the Map window.

To define user preferences1. Choose Edit > Preferences.2. In the User Preferences dialog box, in the tree view, choose Units.

It is on the Units panel that you specify the units to use with the project.

3. In the tree view, choose Project Explorer.4. In the Performance section, enable the Show Windows category check box.5. In the Zoom Automatically section, enable the On Viewed Site Selection check box.6. Click OK.7. Do one of the following:

n If you want to proceed to the next walkthrough, leave the Map window open.n If you want to stop here, choose File > Close Project, click Yes to confirm youwant to close the project and Yes to confirm you want to save the project.

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Placing sites automaticallyUsing the Automatic Site Placement Tool (ASPT), you can place sites in a defined areaquickly and easily. There are two modes that you can use with the ASPT:

n Basic—the tool generates hexagons based on the criteria you define and places a siteat the center of each hexagon using either the default site configuration or the sitetemplate you specify. If you are using a clutter file, you can exclude clutter classessuch that no sites will be placed within them.

n Advanced —the tool generates complex shapes based on the planning strategy youchoose and the criteria you define (including clutter-specific criteria) and places a siteat the center of the shape using the site template you specify. Each site is given a levelof priority that determines whether it becomes a possible site candidate. In Advancedmode, you can use a traffic map in order to generate more accurate shapes. Inaddition, you can use existing and candidate sites in the site placement process.

In this walkthrough, you will use the Advanced ASPT option to place sites automatically.


Note: To use the Advanced ASPT option requires a license. Contact Customer Support fora temporary license.

Procedures

To place sites using the Basic option1. Open the WiMAX TDD project if it is not already open.2. Choose Optimization > Automatic Site Placement.3. In the Automatic Site Placement dialog box, on the General tab, do the following:

n Choose the Basic option.n In the Region section, choose the Area option and ensure CoreCluster_area isselected.

3. Click Generate.

Nineteen new sites are proposed.

4. Click Create Sites.5. Click Close.6. Do one of the following:

n If you want to proceed to the next lesson, leave the Map window open.n If you want to stop here, choose File > Close Project, click Yes to confirm youwant to close the project and Yes to confirm you want to save the project.

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To place sites using the Advanced option1. Open the WiMAX TDD project if it is not already open.2. Choose Optimization > Automatic Site Placement.3. In the Automatic Site Placement dialog box, on the General tab, do the following:

n Choose the Advanced option.n In the Region section, choose the Area option and ensure CoreCluster_area isselected.

3. Click the Site Templates tab.4. For the Water and Wetland classes, in the Place Site column, choose Never from the

list.5. Click Generate.

Thirty-one new sites are proposed.

6. Click Create Sites.7. Click Close.8. Do one of the following:


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Assigning a propagation modelIn order to model a network that is as close to the real-world network as possible, you needto calibrate the propagation model using survey measurements.

Once you have calibrated the model, you can associate the model to other sites that sharethe same type of environment, provided that the model is not overly dependent oncalibrations (empirical models generally rely heavily on calibrations).

In this walkthrough, you will assign a tuned propagation model to all sites in the Centralgroup.


Procedure1. In the Project Explorer, in the Sites category, expand the Groups node, and expand the

Local node.2. Right-click the Central group and open the Tabular Editor.3. In the Tabular Editor, click the Sectors tab.4. In the Propagation Model column, change the value for all rows from default_

PlanetGeneralModel.pmf to Predict4.0_3.5GHz.pmf.5. Click OK to apply your changes.6. To see how tuning the model affects predictions, right-click the Site_1 in the Central

group and choose Generate Predictions.7. To view the prediction in the Map window, in the Project Explorer, right-click the

WiMAX TDD base station for Site_1 and choose View > Sector Predictions > Modeled >Preamble.

8. To remove the prediction from the Map window, choose View > Predictions.9. Click the Displayed tab, click Close All Tables and then click Close.10. Click Close.11. Do one of the following:


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Generating and viewing predictionsPredictions use a propagation model, terrain and clutter information, and general sectorsettings including the power, antenna, and azimuth to predict the signal strength and pathloss of a sector at any location where the signal exceeds the defined minimum level.

Path loss and signal strength predictions are used in network analyses to determinecoverage and other metrics.

In this walkthrough, you will specify a value for the custom data attribute "Street Address"and then generate and view predictions for one site.


Procedures

To generate predictions1. Open the WiMAX TDD project.2. In the Project Explorer, from the Category list, choose Sites.3. Expand the Sites node.4. Double-click Site_1 to open the Site Editor.5. Click the Site User Data button next to the site name.6. Click in the Value field next to Street Address and type 54 Park Ave.

As you will see later in the tutorial, you can use the Tabular Editor to quickly andeasily define attributes for multiple sites.

7. Click OK.8. In the Site Editor, click OK.9. Right-click the Central node and choose Generate Predictions.10. In the Prediction Generator, click Generate.11. When prediction generation is complete, click Close.

To view sector predictions1. In the Project Explorer, in the Sites category, expand the Groups node and the Local

node, and then right-click the Central node and choose View.2. Expand the Central node.

Site_10 is part of the Central group.

3. Expand Site_10, right-click the WiMAX TDD base station, and choose View SectorPredictions > Modeled > Preamble.

You could also view the sector prediction by expanding the Sites node and thenexpanding Site_10, and right-clicking the WiMAX TDD base station.

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4. On the Main toolbar, click the Zoom In button and then click in the Map windowuntil you can view the prediction area.

The prediction layer shows the preamble C/(N+I) for the best channel at each bin.

5. Choose View > Grid Legend.6. In the Grid Legend dialog box, from the Grids list at the bottom of the dialog box,

choose CBs_Site_10_1_2_3_Preamble.grd.7. Review the legend and close the window.

8. On the Grid Analysis toolbar, click the Grid Info button and then click in the Mapwindow.

The Grid Info dialog box opens. You can resize columns by clicking the headingdivider.

9. In the Map window, click anywhere on the displayed prediction layer to view predictionvalues.

10. When you have finished, close the Grid Info dialog box.

To remove predictions from the Map windowYou can remove prediction layers from the Map window using various methods. You will usethe View Predictions dialog box in this exercise but you can also use the Close Tablecommand from the GIS menu or the Close command available when you right-click a layerin the Windows category.

1. To remove the prediction displayed, choose View > Predictions.2. In the View Predictions dialog box, click Close All Tables, and click Close.3. Do one of the following:


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Identifying sectors using flagsFlags are properties that you can use to identify sectors as having certain characteristics(conditions). You can create multiple flags, and each flag can have multiple conditions, butyou can assign only one condition per flag to a sector. The conditions of a flag should be aset of related but mutually exclusive values (e.g., you could have a flag called "Status"with conditions called "On-Air", "Under Construction", "Offline").

In this walkthrough, you will use the Tabular Editor to associate the On_Air flag to theDowntown group of sectors.


Procedure1. In the Project Explorer, in the Sites category, expand the Sites node.2. Double-click the Site_1.3. In the tree view, choose sector 1.4. On the General tab, in the Flags section, choose the On_Air condition for the Status

flag.5. Repeat Step 4 for sectors 2 and 3.6. Click OK.

When you click OK, your changes are applied and the dialog box is closed. When youclick Apply, your changes are applied but the dialog box remains open so that youcan make further changes.

All sectors at the site are now tagged as being On_Air. To change the status of all thesites in the Downtown group in a similar fashion would be very time consuming.Using the Tabular Editor, you can apply flags and conditions quickly to a group ofsites.

7. Expand the Groups node, and then expand the Local node.

The numbers displayed after the Central group name (17/17/51/0) indicate thenumber of sites, base stations, sectors, and repeaters in the group.

8. Right-click the Central group and choose Tabular Editor.9. In the Tabular Editor, click the Sectors tab.10. Notice that the first rows in the Flag: Status column are already tagged as On_Air.11. In the Flag: Status column, click in the first field.

12. On the toolbar, click the Copy to Clipboard button .13. Click the Flag: Status column heading to select all rows.

14. Click the Paste From Clipboard button .The On_Air flag is copied to all sectors in the Central group.

15. Click OK to apply your changes.

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All sites in the Central group are now tagged as being on air.

16. In the Project Explorer, in the Sites category, right-click the top-level Sites node andchoose View to view all sites in the project.

17. Expand the Flags node and the Status node.18. Enable the On_Air check box.19. To view all sites tagged as on air, right-click the Flags node and choose View.

All sites that are on air are displayed in the Map window.

20. Do one of the following:n If you want to proceed to the next lesson, leave the Map window open.n If you want to stop here, choose File > Close Project, click Yes to confirm youwant to close the project and Yes to confirm you want to save the project.

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Importing network dataNetwork data is data collected from wireless network switching equipment. It containsinformation about network configuration and performance. You use the Network DataImport Wizard to bind network data to Mentum Planet data. The bound network data canthen be used in Mentum Planet in traffic maps, interference matrices, neighbor plans,frequency planning, and for display purposes.

In this walkthrough, you will import and bind network data that you will later use to createa traffic map.


Procedure1. Open the WiMAX TDD project if it is not already open.2. In the Project Explorer, in the Operational Data category, right-click the Network

Data node and choose New.

The Network Data Import Wizard opens.

3. Read the introduction and click Next.4. Choose the Microsoft Excel option, browse to the Attachments\Local folder within the

project, select the Live_Traffic.xls file, and then click Open.5. In the Wizard, click Next.6. To bind the network data to the Mentum Planet project, do the following:

n Choose the Bind to SiteID/Sector ID optionn In the Site ID column, from the list, choose Site ID. The indicator turns green toconfirm that your selection is valid.

n In the Sector ID column, from the list, choose Sector ID.n Leave the Traffic column unbound.

7. Click Finish.

The Report Preview dialog box opens where you can review traffic data.

8. Click the Traffic heading to select the column.

9. Click the Generate Sector Display Scheme button.10. In the New Sector Display Scheme dialog box, type Traffic and click OK.11. In the Sector Display Scheme dialog box, click the Color tab.12. Choose the Based on Property option and, from the associated list, choose Traffic.13. Click Add and, in the Add Value dialog box, type 15 and click OK.14. Click the color swatch next to a value so that each value uses a unique color.15. Click Apply to display sector symbols.16. Click OK to close the Sector Display Scheme dialog box.17. Close the Report Preview dialog box.

Sectors are displayed in a variety of colors and sizes based on the traffic.

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18. To reset the sector display scheme, in the Project Explorer, choose the Sites category.19. Right-click the Central group and choose Sector Display Scheme > Apply.20. In the Select Scheme dialog box, choose None, click Apply.21. Do one of the following:


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Creating a traffic mapTraffic maps provide data about the geographical distribution of subscriber traffic in anetwork and are key to creating an accurate model of network performance. By using well-crafted traffic maps, you ensure that with your network design, service is available in theareas where it is most needed.

You can base the traffic map on various data sources including regions, vectors, classifiedgrid, or network data. And, in order to ensure the traffic map is as realistic as possible, youcan define a weighting value to the input data that represents how much traffic to model.

In this walkthrough, you will create a traffic map using the imported network data.


Procedure1. In the Project Explorer, in the Project Data category, right-click the Traffic Maps

node and choose New.2. In the Name box, type Traffic_FromND.3. In the Data Source section, choose the Network Data option.4. In the Weighting section, choose None.5. In the Unit section, change the Input Data Unit to Subscribers and the Output Data

Unit to Subscribers/km2.6. Click Next.

The Traffic Data page displays with the Network Data selections already made.

7. In the Traffic Spreading Algorithm section, choose the Sector Service Probabilitiesoption.

8. Click Next.9. On the Traffic Spreading Algorithm page, in the Selection Options section, choose

Group Selection and ensure the Central group is selected.10. For all other values, accept the defaults, and click Finish.11. When traffic map generation is complete, click Close.

The new traffic map is added beneath the Traffic Maps node.

12. To display the traffic map, in the Project Data category, expand the Traffic Mapsnode and double-click the Traffic_FromND file.

When you double-click an item in the Project Explorer, the default action is carriedout. A default action is displayed in bold on the Project Explorer shortcut menu. Inthis case, the default action is View and so the traffic map displays in the Mapwindow. Use the Grid Legend command from the View menu to display the maplegend.

13. Choose GIS > Close Table to remove the traffic map layer from the Map window.14. Do one of the following:

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Editing subscribersThe characteristics of subscribers are defined using the nodes in the Subscriber Settingsdialog box. The nodes within the Subscriber Settings dialog box represent building blocksfor subscriber types: Equipment Types, Services, and Subscriber Types. You can create adiverse mix of subscribers by defining different services, quality types, and userequipment types and assigning them to subscriber types.

Subscriber types are used with Monte Carlo simulations. Nominal analyses only require thedefinition of equipment types.

In this walkthrough, you will modify subscriber settings to use the traffic map you createdin the previous lesson.

Note: Before beginning the walkthrough, download the dataset. See

Procedure1. In Mentum Planet, do one of the following:

n Choose Edit >Subscriber Settings.

n Click the Subscriber Settings button on the toolbar.2. In the Subscriber Settings dialog box, expand the Equipment Types node, and choose

WiMAX CPE.3. Click the Hardware tab and, in the Maximum PA Power box, type 22 dBm.4. Expand the Subscriber Types node and choose Speech_user Subscriber Type.5. Click the Configuration tab and from the Traffic Map list, choose TrafficFromND.6. Click OK.7. Do one of the following:


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Generating and viewing a network analysisIn Mentum Planet, you can generate an analysis with nothing more than the equipment typedefined in the subscriber settings. This decreases the time required to prepare for networkanalysis and results in less time being required to generate the analysis layers; however,this type of analysis does not generate detailed subscriber information. The analysis runsonly once and generates analysis layers automatically.

In this walkthrough, you will learn how to define default layer settings, generate threelayers, and view layers side by side.


Procedures

To generate a network analysis1. In the Project Explorer, in the Network Analyses category, right-click the WiMAX TDD

Analyses node, and choose Default Layers.

By defining default layers, you can save time if you always generate the same layers.

2. In the WiMAX TDD Analysis Layers dialog box, click the Common node to clear allcheck boxes.

3. Expand the node, enable the following check boxes and click OK.n Best Servern Best Server Signal Strengthn Best Server Preamble Signal Strength

4. Right-click the WiMAX TDD Analyses node and choose New.5. In the Name box, type CentralArea and click Next.6. On the Sector Selection page, choose the Group Selection option and select the

Central group.7. Click Next and, on the following pages of the wizard, accept the default settings until

you come to the Analysis Area page.8. In the Analysis Area section, choose the Use an Area Grid option and, from the list,

choose CoreCluster_area.

Using an area grid you can focus an analysis on a specific area. In this way, you canreduce the time required to generate outputs.

9. Click Next until the Final Step page of the Wizard displays.10. On the last page of the Wizard, ensure the Save Settings and Generate Output option is

selected and click Finish.11. When layer generation is complete, click Close.

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To view a network analysis1. If the MapInfo Sync Windows toolbar is not visible, choose GIS > Tools > Tool

Manager, and enable the Sync Windows check boxes.2. On the Sync Windows toolbar, do the following:

n Click the Clone Map Window button.

n Click the Tile Windows button.

n Click the Sync All Map Windows button and , in the Synchronize MapWindows dialog box, enable the Always Synchronize Map Windows check boxand click OK.

3. In the Project Explorer, in the Network Analysis category, expand the WiMAXAnalyses node, expand the CentralArea node, expand the Common node, and right-click the Best Server layer and choose View.

4. Click the second Map window to make it active and view the Best Server PreambleSignal Strength.

5. On the Main toolbar, use any of the following tools to examine the layers:

n Zoom Inn Zoom Outn Grabber

After you have examined both layers, in the Project Explorer, in the NetworkAnalyses category, right-click the Best Server layer and choose Close.

6. Close the Best Server Preamble Signal Strength layer.7. Close the second Map window.

l Do one of the following:

n If you want to proceed to the next lesson, leave the Map window open.n If you want to stop here, choose File > Close Project, click Yes toconfirm you want to close the project and Yes to confirm you want tosave the project.

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Generating a Monte Carlo simulationA Monte Carlo analysis uses Monte Carlo simulation techniques to determine thecharacteristics of the network over repeated runs. A run consists of the distribution ofrandom numbers of subscribers throughout the simulation area in a pseudo-random pattern,and an analysis of the uplink and downlink. On the last run, network and subscriberinformation are generated. Once the runs are completed, you can view the results includingdetailed reports, discrete subscriber information, and an optional service layer generatedafter the Monte Carlo simulation. Monte Carlo simulation results provide you with detailedsector loadings that you can apply to cells. You could then create a network analysis in orderto generate accurate network analysis layers based on the Monte Carlo simulation results.

In this walkthrough, you will create a Monte Carlo simulation and review the Sector/Carrierreport.


Tip: When working with Mentum Planet, press F1 from any dialog box to open the onlineHelp.

Procedure1. In the Project Explorer, in the Monte Carlo Simulations category, right-click WiMAX

TDD Simulations and choose New.2. On the first page of the wizard, in the Name box, type CentralAreaMC and click Next.3. On the Sector Selection page, in the Selections Options section, choose the Group

Selection option and ensure the Central group is displayed.4. Click Next.5. On the System page, enable the check box next to the Speech_user subscriber type

and click Next.6. On the Analysis page, accept the defaults and click Next.7. On the Monte Carlo page, enable the Display Convergence Graph check box if it is not

already selected and click Next.8. On the Simulation Area page, choose the Use an Area Grid option and ensure the

CoreCluster_area grid is selected.9. Click Next.10. On the last page of the Wizard, ensure the Save Settings and Generate Output option is

selected, and click Finish.11. When the simulation is complete, review simulation results, and close the results

window and the Convergence Evolution window.12. Right-click the CentralAreaMC simulation and choose Generate Reports

> Sector/Channel.13. Review report details and click Close.14. Do one of the following:

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Generating layer statisticsLayer statistics can provide useful insight into the behavior of the network. In thiswalkthrough, you will generate layer statistics for the best server layer and display a bargraph of the results.


Procedure1. In the Project Explorer, in the Network Analyses category, expand the WiMAX

Analyses node, the CentralArea node, the Common node, right-click the Best Serverlayer and choose Statistics.

2. In the Layer Statistics dialog box, in the Analysis Settings pane, from the AnalysisArea list, choose CoreCluster_area.

3. Click Calculate Statistics.

The Report Preview dialog box opens where you can review layer statistics.

4. CTRL+Click the following column headings to select them:n Sectorn Percentage Total Area

5. Click the Show Graph button.The Graph window opens with information displayed in a bar chart. You can change thechart type to Lines or Points.

6. To narrow the focus of the graph, in the Show Top Elements box, type 5.7. Close the Graph, Report Preview, and Layer Statistics dialog boxes.8. Do one of the following:


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Creating and applying neighbor plansIn order to design a wireless network where users can move between sectors smoothlywith no interruption of service, you need to understand how sites influence each other andhow they can better interact with each other. To do this, you create a neighbor plan thatencompasses sector neighbor lists and using this information, you can determine the besthandover strategy for the network and make appropriate decisions about network design.Neighbor relationship management in Mentum Planet encompasses the following basicelements: neighbor lists and black lists, which are defined at the sector level, and neighborplans, which are defined at the network level.

In this walkthrough, you will create a neighbor plan and apply it to the Central group.


Procedure1. In the RF Tools category, right-click the Neighbor Plans node and choose New.2. On the Name, Description, and Sectors page, in the Name box, type CentralNP.3. In the Sector Selection section, choose the Group Selection option and ensure the list

displays the Central group.4. Click Next.5. On the Neighbor Plan Type and Algorithm page, in the Algorithm section, choose the

Best Server option, click Next.6. On the Algorithm Parameters page, click Finish.7. When the neighbor planning process is complete, click Close.

The new neighbor plan is added to the Neighbor Plans node in the Project Explorer.

8. To apply the new neighbor plan to sites in the Central group, in the RF Toolscategory, right-click the neighbor plan you just created, and choose Apply > Replace.

9. In the Sites category, double-click Site_1 to open the Site Editor.10. In the tree view, choose sector 2 and click the Neighbor List tab to view neighbors.11. Drag the cursor to select all neighbors and click the View in Map button to display

neighbor relationships in the Map window.12. Close the Site Editor.13. To remove the neighbor list display, in the Windows category of the Project Explorer,

expand all nodes, right-click the NeighborList_SectorRelations layer and chooseClose.

14. Do one of the following:n If you want to proceed to the next lesson, leave the Map window open.n If you want to stop here, choose File > Close Project, click Yes to confirm youwant to close the project and Yes to confirm you want to save the project.

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Creating an Interference MatrixA histogram interference matrix is generated on-the-fly based on predictions. Eachinterference matrix consists of histograms of C/I. There is one C/I histogram for eachserver-interferer pair and each histogram represents the distribution of C/I between aserver/interferer pair if they were assigned the same carrier.

In this walkthrough, you will create a histogram interference matrix.


Procedure1. In the Project Explorer, in the RF Tools category, right-click the Interference Matrices

node and choose New > Downlink.2. In the Sector Selection dialog box, choose the Group Selection option and ensure the

Central group is selected, and click OK.3. In the Generate a Downlink Histogram Interference Matrix dialog box, in the tree

view, choose Calculation.4. In the Name box, type NewCentralIM.5. In the Traffic section, enable the Use a Traffic Map, and choose Traffic_FromND.6. Click Generate, and once generation is complete, close the dialog box.7. In the Project Explorer RF Tools category, expand the Interference Matrices node.8. Right-click the NewCentralIM and choose View.9. Review histogram interference matrix details and when you are finished, click Close.10. Do one of the following:


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Analyzing fixed subscribersA fixed subscriber analysis analyzes network performance at discrete subscriber locationsdefined in the fixed subscriber table. If required, for each subscriber, you can define aunique configuration (e.g., locations, CPE with integrated antenna, or CPE with directionalantenna mounted at roof top). For example, at the same location, you may have multiplesubscribers but each subscriber is at a different height. This is a configuration that wouldbe required if subscribers, for example, in the same apartment building are located on adifferent floor (i.e., at a different level).

For every subscriber, the analysis predicts the signal strengths at the location, anddetermines the best parent server and the potential second best server. The downlink anduplink performance, in terms of best available modulation, maximum achievable data rate,coverage probability, margins, etc. are then analyzed. The analysis results of eachsubscriber are stored in the fixed subscriber table.

In this walkthrough, you will analyze fixed subscribers.


Procedure1. In the Fixed Subscribers category, expand the WiMAX TDD node, right-click the

Downtown_Fixed_Subs table and choose Analyze.2. In the Sector Selection dialog box, choose the Central group, and click Next.3. On the Analysis page, accept the defaults, and click Finish.4. When the analysis is complete, click Close.5. To view analysis results, right-click the Downtown_Fixed_Subs table, and choose

Edit in Excel.6. Do one of the following:


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Optimizing the networkYou can optimize network design using the Automatic Cell Planning (ACP) features ofMentum Planet in order to extend coverage and increase capacity by fine tuning antennaparameters and by activating only those sites that best fit the network design and goals.

In this lesson, you will review network optimization features and regenerate anoptimization.


Procedure1. In the Project Explorer, in the Optimization category, expand the Optimization Profiles

node, and double-click RSRP and DL_CINR.2. Expand the Goals node and, in turn, select the individual goals assigning a weight of 1

to the first goal and 2 to the second goal.3. In the tree view, expand the Combined Goals node, and choose the RSRP_and_DL_

CINR combined goal to review goal settings.4. Press F1 to view the online Help.5. Click OK.6. Expand the Optimizations node and then expand the Toronto_Site_Selection node.7. Double-click the RSRP_and_DL_CINR_Outdoor optimization to regenerate the

optimization.

The Optimization window opens where you can view the progress of the optimization.Two graphs are displayed:

n Quality (%) versus Time—this graph displays the quality of the network againsteach of the optimization goals that are part of the scenario. For example, with aRSRP optimization goal, the graph displays the percentage of the optimizationarea where the RSRP is above the threshold.

n Convergence versus Time—this graph displays the progress of the optimizationand the rate at which the network quality is improving.

8. When the optimization is complete and you have reviewed the graphs, click Close.9. Do one of the following:


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Optimizing a single siteWhen you make changes to sector settings and want to understand the impact thesechanges have, you can optimize a single site and view coverage and interference layers(i.e., the best server signal strength layer and the C/(N+I) layer).

In single site optimization, predictions are generated along radials that span 170 degrees(ignoring the antenna backlobe). Points spread along the radials are then optimized usingthe defined criteria and layers are generated.

In this walkthrough, you will optimize a site.


Procedure1. In the Project Explorer, in the Sites category, expand the Sites node.2. Click the Sites node.

A filter box is displayed.

3. In the box, type Site_5.

Three sites display.

4. Expand the Site_50 site.5. Right-click the WiMAX TDD base station and choose Optimize.6. In the Sector Selection, in the Selection Options section, choose Group Selection and

ensure Central is selected, and then click Select.7. In the Site Optimization Tool dialog box, on the General tab, enable the Use a Traffic

Map check box and, from the associated list, choose Traffic_From ND.8. Click the Optimization tab.9. Choose the Use Generic Goals option.10. Clear the Optimize Preamble Ec Coverage check box.11. Enable the Optimize Interference check box and choose the Optimize Preamble C/

(C+N+I) option.12. In the threshold box, type -12 dB.13. Click Optimize.14. When the optimization is complete, click Apply and then click Close.15. In the Sites category, open Site_50 in the Site Editor.16. In the tree view, select sector 3.17. Click the Link tab and click Edit next to the Antenna list.

The General tab displays with an updated azimuth value.

18. Close the Site Editor.

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Walk Through Wi Max

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