ASSET ACP User Reference Guide For Version 9.0
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Change History This table shows the change history of this guide: Edition
Date
Reason
1
23 February 2015
First edition.
Table of Contents
Table of Contents 1
Introduction ..................................................................................................... 7
2
Using ASSET ACP ........................................................................................... 9 Using the ACP Workflow.................................................................................... 9 Recommendations and Guidelines .................................................................. 10 About the File Menu ......................................................................................... 11 Setting Up Thresholds and Parameters ........................................................... 12 Setting RF Array Thresholds ..................................................................................... 12 Setting the Strategy ................................................................................................... 16 Setting Traffic Options ............................................................................................... 18 Specifying the Settings .............................................................................................. 18 Globally Committing All Your Changes ..................................................................... 20
Managing Plans ............................................................................................... 20 Using the Plan Manager ............................................................................................ 21 About the Concept of Plans in ASSET ACP .............................................................. 21 Viewing and Using Plans in the Plan Manager ......................................................... 22 Creating Plans for Optimisation or Analysis .............................................................. 23 Using the Context Menu ............................................................................................ 30 Viewing Plans in the Map View Window.................................................................... 32 Applying a Plan to the Database ............................................................................... 35 Applying a Plan Temporarily to the Database ........................................................... 36 Comparison between Temp Apply and Apply to Database ....................................... 37 Deleting a Plan .......................................................................................................... 38
Setting Action-Constraints for Plans................................................................. 38 About the Action-Constraints Dialog Box .................................................................. 39 Using the Action-Constraints Dialog Box ................................................................... 41 About Action-Constraints Templates ......................................................................... 53 Assigning Action-Constraints Templates to Objects ................................................. 63
Optimising a Network ....................................................................................... 65 Prerequisites for an Optimisation .............................................................................. 65 Running an Optimisation ........................................................................................... 66 Monitoring an Optimisation ........................................................................................ 67 About Applying Plans to the Database ...................................................................... 73
Analysing and Evaluating Plans ....................................................................... 73 Information Generated by the Analysis ..................................................................... 74 Prerequisites for Running an Analysis ....................................................................... 75 Performing an Analysis for a Single Plan .................................................................. 75 Performing an Analysis to Compare Plans ................................................................ 77 Displaying Plan Comparison Results in the Map View .............................................. 78 About Rollout Planning and Partial Plans .................................................................. 79
About Action-Constraints ................................................................................. 83 Methods of Configuring Action-Constraints ............................................................... 83 About the Action-Constraints Available ..................................................................... 84
Selecting Report Formats ................................................................................ 96
3
Index............................................................................................................... 99
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ASSET ACP 9.0 User Reference Guide
6
Introduction
1 Introduction ASSET ACP is ASSET's automatic cell planning and optimisation tool. Relying on the same advanced algorithm used by ADVANTAGE, the tool searches for improvements based on userspecified criteria, and greatly speeds up the cell planning process. ASSET ACP enables the automatic optimisation of the physical network configuration to maximise capacity for the desired range of services and traffic demands. It can optimise design parameter settings (antenna, power) to meet the network performance objectives. Notes:
The tool is designed to aid planners in their day-to-day planning activities.
The maximum number of cells that can be experimentally modified within any one optimisation is 150. That is, when creating a plan, 150 cells is the maximum that can be in the 'plan' state. There is no limit on the number that can be in the 'read-only' state.
If, in addition to ASSET ACP, you also have a Financial Analysis licence, these two modules share the same dialog box (ACP & Financial Analysis).
The technologies explicitly supported are:
o
GSM
o
UMTS FDD
o
CDMA2000
o
EV-DO
o
Fixed WiMAX
o
Mobile WiMAX
o
LTE
In this guide, for simplicity, the term WiMAX may represent Fixed or Mobile WiMAX, and the term CDMA/EV-DO may represent CDMA2000 or EV-DO.
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ASSET ACP 9.0 User Reference Guide
8
Using ASSET ACP
2 Using ASSET ACP In ASSET ACP, the Optimiser Workflow enables you to perform the vast majority of tasks from a single dialog box.
Using the ACP Workflow The ACP Workflow enables you to perform all the tasks within ASSET ACP from a single dialog box. This incorporates the setting up of parameters, costs, constraints and targets, and generation of optimisation plans.
Example of the ACP Workflow dialog box in ASSET ACP
The ACP Workflow comprises a number of main options in the left hand pane, and each of these enables you to access a range of specific options that are displayed in the right-hand pane. Note: The tab names and options within the ACP Workflow dialog box will vary slightly according to the technology that you are using.
To start the ACP Workflow: From the Tools menu, click ASSET ACP.
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ASSET ACP 9.0 User Reference Guide
Recommendations and Guidelines Important: There are some crucial factors which you should consider when using ASSET ACP. It is strongly recommended that you consider the following factors carefully, otherwise you run the risk of optimisations taking much longer than necessary. If these issues are considered properly, and the set-up is sensible, ASSET ACP can perform at its best in terms of speed, performance and efficiency.
Large Array Support For performance reasons, it is strongly recommended to turn off Large Array Support (LAS) when running optimisations. If the scenario (region size, map data resolution, terminal count, covering cell depth, and so on) means that there is not enough memory available to ENTERPRISE without using LAS, it is better to reduce the memory demands of the scenario (such as splitting the scenario into multiple parts), rather than attempt to use LAS. For information on the Large Array Support Settings, see the ENTERPRISE Installation and Administration Guide.
Prediction Resolutions For performance reasons, prediction resolutions for individual cells should be set so that they match the resolution at which the analysis or optimisation is being performed. Ideally, the predictions should already be available at the specified map data resolution, before performing an analysis or optimisation.
You can use the following list of guidelines to maximise the ability of the optimisation algorithm to find an optimised network configuration quickly:
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Concentrate on the region and cells of interest. Use the Plan Wizard to specify the region and cells of interest, and ignore areas or cells that should not be part of the optimisation.
Restrict the optimisation calculations to vectors and/or drive test routes (if possible). Use the option in the Plan Wizard (or the Edit Vectors right-click option) to restrict the optimisation array and cost calculations to specific vectors and/or drive test routes.
Do not use a higher array resolution than required. If you can get realistic network performance results by specifying a low resolution for the optimisation, there is no point in using a higher resolution.
Restrict the number of servers/cells considered for array generation. If you can get realistic results (for example, with respect to interference) by specifying fewer servers/cells for the optimisation, there is no need to use more.
Limit the optimisation cost calculations to a lower number of servers/cells (if appropriate). Use the Servers/Cells per Pixel option on the Strategy page of the Optimiser Workflow to do this.
Focus on problematic cells/areas. Use read-only filters (for network objects that should be considered, but not modified) and/or the Problem Cells options to ensure that the Optimiser concentrates on cells that are performing badly.
Do not under- or over-constrain the optimisation problem. Make sure that the specified actions/constraints are reasonable, so that inappropriate configurations are not evaluated, but also flexible enough to allow the Optimiser to produce the best possible plan.
Fine-tune the algorithm. The nature of the algorithm is general enough to apply to a wide range of optimisation problems. Although the algorithm can be fine-tuned per specific scenario to further maximise its efficiency (the algorithmic fine-tuning depends on the setup and user permissions), it is not an easy task and must be approached with caution.
Using ASSET ACP
About the File Menu ENTERPRISE enables you to import XML files into a project or export XML files from a project. You can do this using the File menu, which gives access to the XML Import and Export dialog boxes. When you have an ASSET ACP licence, these dialog boxes contain an additional tab, enabling you to import or export ASSET ACP-specific plans, thresholds, templates and settings. Important: Only plans marked as in 'Use' by the current user will get exported. This provides some user-control in a situation where there are numerous plans, and you do not want to export all of them. However, if you want to export other plans, you need to use the 'Toggle Use' option for such plans in the Plan Manager of the Optimiser Workflow. See Viewing and Using Plans in the Plan Manager on page 22. This picture shows an example:
Example of XML Export Dialog Box
For more information on importing and exporting XML data, see the ENTERPRISE User Reference Guide.
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ASSET ACP 9.0 User Reference Guide
Setting Up Thresholds and Parameters The ACP Workflow enables you to perform all the tasks within ASSET ACP from a single dialog box. This section focuses on the thresholds, parameters and settings, which are crucial to the optimisation engine. Important: These steps, in particular the ones related to the radio environment setup, are probably not relevant to the general user, assuming that the administrator (or super-user) has already completed them. This is also true for optimisation scenarios that have been set up by one user that can be shared with other users who access the same project.
To start the ACP Workflow: From the Tools menu, click ASSET ACP.
Setting RF Array Thresholds
The RF (radio frequency) array thresholds in the ACP Workflow enable you to specify:
RF array thresholds for clutter
RF array thresholds for vectors
These thresholds determine the required RF performance for your optimisations and analyses.
Specifying RF Array Thresholds for Clutter In the RF Array Thresholds, you can configure clutter-specific thresholds that define the current or required performance of your network. This enables you to specify and use minimum signal strength and signal quality targets for chosen clutter types. These thresholds are evaluated when running optimisations and when performing an analysis.
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Using ASSET ACP
This picture shows an example of the Clutter Thresholds:
Example of Clutter Thresholds
To edit the Clutter Thresholds: 1. Within the left-hand pane of the ACP Workflow, double-click RF Array Thresholds, and then double-click Clutter.
2. Click the required technology, as appropriate, depending on your licences. 3. Specify the threshold values as required in the columns for the appropriate clutter types. The following table describes them: Technology
Parameter
Description
GSM
RSS
UMTS
RSCP
The minimum signal level (dBm) that is required to provide coverage in the corresponding clutter type.
CDMA/EV-DO
RSCP
Fixed WiMAX
DL RSS
Mobile WiMAX
Preamble RSS
LTE
RSRP
GSM
CINR
UMTS
Pilot Ec/Io
CDMA/EV-DO
Pilot Ec/Io
Fixed WiMAX
DL CINR
Mobile WiMAX
Preamble CINR
LTE
RSRQ
The minimum signal quality ratio (dB) that is required in the corresponding clutter type.
All changes that you make on this page are automatically saved to the database in the Applied state, and the changes will persist when you close the Workflow dialog box. However, if appropriate, you can carry out one of the following actions: o
If you want to restore the options on this page to the previous committed state (if such a state exists), click Restore
o
If you want to share the changes on this page with all other users, click Commit
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ASSET ACP 9.0 User Reference Guide
Setting the General Clutter Parameters If you want to use the sampling options, you can do this on the General Clutter Parameters tab. To do this: 1. Within the left-hand pane of the ACP Workflow, select RF Array Thresholds, then doubleclick Clutter, and then click General.
2. On the General Clutter Parameters tab, specify the Sampling parameters, if required, for the appropriate clutter types. The following table describes the parameter: Parameter
Description
Sample
Determines whether cost function sampling is applied to the clutter type. This sampling is a calculation process using only a subset of the total pixels during optimisation. The process 'removes' neighbouring pixels of the same clutter type, and therefore makes the optimisation and analysis faster. Sampling is only recommended if your mapping resolution is high (under 50m) and you want to optimise a large area. Tip: You can display the subset of pixels on the map View. See About the Sampling Option on page 34.
If required, you can change all values in a column by editing one row and then doubleclicking on the column heading.
Specifying RF Array Thresholds for Vectors In the RF Array Thresholds, you can configure vector-specific thresholds that define the current or required performance of your network. This enables you to specify and use minimum signal strength and signal quality targets for chosen vectors. These thresholds are evaluated when running optimisations and when performing an analysis.
Note:
14
The Override checkbox not only enables you to edit the values, but also activates the vector thresholds. Conversely, if unselected, the vector thresholds are not active. Therefore, you should always bear this in mind before you run an optimisation or perform an analysis.
When selected, vector thresholds will always have a higher priority than clutter thresholds (in the pixels that are intersected by your chosen vectors).
Using ASSET ACP
This picture shows an example of the Vector Thresholds:
Example of Vector Thresholds
To edit the Vector Thresholds: 1. Within the left-hand pane of the ACP Workflow, double-click RF Array Thresholds, and then double-click Vector.
2. Click the required technology, as appropriate, depending on your licences. 3. Click the Select Vectors button, and in the dialog box that appears, choose the vectors for which you would like to configure parameters, then click OK. 4. Select the Override checkbox. 5. Specify the values as required in the columns for the appropriate vectors. The following tables describe the thresholds: Technology
Parameter
Description
All
Priority
You can specify the relative priority of the chosen vectors. This will determine which parameters are to be used at locations with intersecting vectors. To raise the priority of a vector, select it, then drag and drop it to the required priority position.
GSM
RSS
UMTS
RSCP
The minimum signal level (dBm) that is required to provide coverage in the corresponding vector.
CDMA/EV-DO
RSCP
Fixed WiMAX
DL RSS
Mobile WiMAX
Preamble RSS
LTE
RSRP
GSM
CINR
UMTS
Pilot Ec/Io
CDMA/EV-DO
Pilot Ec/Io
Fixed WiMAX
DL CINR
Mobile WiMAX
Preamble CINR
LTE
RSRQ
The minimum signal quality ratio (dB) that is required in the corresponding vector.
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ASSET ACP 9.0 User Reference Guide
Tip: You can employ functionality similar to that in spreadsheets, such as: o
Copying and Pasting single or multiple values within the dialog box
o
Copying and Pasting values directly to and from Microsoft Excel ®
o
Pressing the Ctrl-Shift-DownArrow/UpArrow keys (as a quick method of highlighting rows in a column)
6. Leave the Override checkbox selected if you want these thresholds to be active for your optimisations. You can deactivate them at any time, by deselecting the checkbox. All changes that you make on this page are automatically saved to the database in the Applied state, and the changes will persist when you close the Workflow dialog box. However, if appropriate, you can carry out one of the following actions: o
If you want to restore the options on this page to the previous committed state (if such a state exists), click Restore
o
If you want to share the changes on this page with all other users, click Commit
Setting the Strategy
The Strategy option in the ACP Workflow enables you to:
16
Select the metrics to be used in the optimisations, that is Coverage or Quality, or a combination of both
Select the mapping resolution to be used in the optimisation
Specify a Reference Terminal Type
Set the pixel weighting for Area vs. Traffic
Select the technology or technologies (depending on licences)
Set the maximum number of servers or number of covering cells
Using ASSET ACP
This picture shows an example:
Example of Metrics Selection/Weights tab
To do this: 1. Within the left-hand pane of the ACP Workflow, select Strategy.
2. On the Metrics Selection/Weights tab, either specify exact percentages in the edit boxes for Coverage or Quality, or use the slider control. 3. Select the mapping resolution to be used in the optimisation. 4. Specify a Reference Terminal Type (required to generate the arrays). 5. In the Pixel Weighting pane, specify whether the calculation of the optimisation costs should consider area only, traffic only or both combined. To do this, type a value in the % Traffic box to define the weighted importance of traffic-specific calculations for the optimisation; the % Area value is then automatically updated. 6. In the Mechanism Technologies pane, select the technologies for which you want the metrics/weightings to be used. You can also specify, as appropriate: o
Maximum number of servers (GSM) - the number of cells that are considered as covering cells and interferers.
o
Number of covering cells (all other technologies) - the number of cells that are considered as primary covering cells, handover cells (if appropriate) and interferers.
All changes that you make on this tab are automatically saved to the database in the Applied state, and the changes will persist when you close the Workflow dialog box. However, if appropriate, you can carry out one of the following actions: o
If you want to restore the options on this tab to the previous committed state (if such a state exists), click Restore
o
If you want to share the changes on this tab with all other users, click Commit
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ASSET ACP 9.0 User Reference Guide
Setting Traffic Options The Traffic option in the ACP Workflow enables you to specify the list of terminal types to be used in an optimisation. This option is relevant if you want to consider traffic in your optimisations (it is not required for an analysis/optimisation that is area-based only). Note: Even if you do not consider traffic, you still need to specify a Reference Terminal type. You can do this on the Metrics Selection/Weights tab of the Strategy page.
To do this: 1. Within the left-hand pane of the Workflow, select Traffic.
2. On the Terminal Types tab, you can select the required terminal type(s) from the list displayed.
All changes that you make on this tab are automatically saved to the database in the Applied state, and the changes will persist when you close the Workflow dialog box. However, if appropriate, you can carry out one of the following actions: o
If you want to restore the options on this tab to the previous committed state (if such a state exists), click Restore
o
If you want to share the changes on this tab with all other users, click Commit
Specifying the Settings The Settings in the ACP Workflow enable you to:
Set the Simulator Speed to run in memory-optimised mode
Choose a different antenna height parameter for optimisation
Specify the thresholds that relate to the Auto Plan Setup method
To access these settings, in the left-hand pane of the Workflow, select Settings:
There are two tabs available: Options tab and Auto Plan Setup tab.
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Using ASSET ACP
Simulator Speed Service-based optimisations and analyses, are, by default, run in speed-optimised mode, which can have an impact on the memory used. If you prefer to use the memory-optimised mode (lower speed) option, you can select this option as follows: On the Options tab, select the 'Run Simulator in memory-optimised mode' checkbox.
Antenna Height Optimisation By default, if antenna heights are being optimised, the optimisation updates the Height-Inv value. You should only choose this option if you prefer it to update the Height-Pred Offset value instead. See the ASSET User Reference Guide for an explanation of these height parameters. You can select this option as follows: On the Options tab, select the 'Update Height-Pred Offset instead of Height-Inv in Site DB' checkbox.
Auto Plan Setup Thresholds These thresholds relate to the Auto Plan Setup method of creating an optimisation plan. They are invoked by the cell identification algorithm which is used within the Auto Plan Setup process. For information on this method, see Using the Auto Plan Setup Method to Create a Plan on page 27. To define the thresholds: On the Auto Plan Setup tab, set the required options for the appropriate technology. This table describes the available settings: Technology
Threshold
Description
GSM UMTS CDMA/EV-DO Fixed WiMAX Mobile WiMAX LTE
RSS RSCP RSCP DL RSS Preamble RSS RSRP
Only pixels containing values equal to or higher than the threshold will be included. All pixels below the threshold will be excluded.
The thresholds vary according to the technology that you are using.
All changes that you make on these tabs are automatically saved to the database in the Applied state, and the changes will persist when you close the Workflow dialog box. However, if appropriate, you can carry out one of the following actions: o
If you want to restore the options on each tab to the previous committed state (if such a state exists), click Restore
o
If you want to share the changes on each tab with all other users, click Commit
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ASSET ACP 9.0 User Reference Guide
Globally Committing All Your Changes If you want to Commit all your changes in the Optimiser Workflow, you can use the Global Commit All option from the main menu. This will Commit all the Applied parameters in the workflow, such as the RF Array Thresholds, Settings and so on. Note: This action will also Commit all the Applied changes in the ASSET tool, not only in the Site Database, but also in all other dialog boxes.
To do this: From the Database menu, click Global Commit All:
If other people are logged into the same database as you, it is possible that they have Committed changes to network element(s) that you are now trying to Commit. If this happens, you are prompted either to cancel the Commit or to continue, overriding their Committed data with your own changes.
Managing Plans The ACP Workflow enables you to perform all the tasks within ASSET ACP from a single dialog box. This section focuses on how to use the Plan Manager, which controls the plans and delta plans output by the optimisation engine. To start the ACP Workflow: From the Tools menu, click ASSET ACP.
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Using ASSET ACP
Using the Plan Manager
The Plan Manager in the ACP Workflow enables you to perform a number of plan-related operations:
View and use existing plans
Create new plans
View and Edit Action-Constraints
Analyse the performance of any plan, or compare plans
Start/Run Optimisations
Delete plans
Temp Apply/UnApply
Apply to Database
There is also a context menu, which you can access by right-clicking on the icon of the appropriate plan. This provides quick access to the same options as most of the main buttons, but also provides extra options. For more information, see Using the Context Menu on page 30. Important: When you are using the ACP Workflow for the first time, you need to set up the general parameters, strategy, settings, and so on, before you run any optimisations. These may include:
RF Array Thresholds (Clutter/Vectors)
Strategy
Traffic
Settings
However, this depends whether you have the appropriate user permissions. Parts of this process may not be relevant to the general user. Depending on the situation, it is possible that the above options and parameters are centrally specified and committed within the user's organisation.
About the Concept of Plans in ASSET ACP There are two 'categories' of plan in ASSET ACP:
Plan
Delta plan
A delta plan is the result of an optimisation run from an original plan. However, in essence, the two types of plan, when created, can be considered to be the same. This is because, in general terms, you can perform similar operations using a plan of either category, and you can choose to Apply any of these plans to the database.
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ASSET ACP 9.0 User Reference Guide
Here are some basic principles:
Before you can start an optimisation, you must have at least one plan created. For more information, see Creating Plans for Optimisation or Analysis on page 23.
Plans are created by way of a 'snapshot' from the current Site Database (this is the only way a 'new' plan can be created). During that process, you can choose to restrict the scope of the plan in terms of (i) region, (ii) sites/nodes/cells, and (iii) vectors/drive test routes, by using the options in the Plan Wizard. At the end of that process, the plan appears within the Plan Manager list.
Plans and delta plans are listed in the Plan Manager section of the Workflow dialog box.
Delta plans can only emanate from a plan, and they must always be 'parented' to a plan, since they represent changes to the starting plan.
When you run an optimisation for the plan, the delta plans appear as 'children' of the parent plan.
Plans are categorised by the
icon. Delta plans are categorised by the
icon.
This picture shows an example of how plans and delta plans are listed in the Plan Manager:
Viewing and Using Plans in the Plan Manager When you are viewing plans, there are three viewing options:
These options are visual 'filters' that help you to distinguish which plan(s) you are working with. The 'Created By Me' option always lists the plans that you (the logged in User ID) have created. The 'All Plans' option always lists all existing plans, regardless of who created them. The 'Used' option requires a more detailed description: The concept behind the 'Used' option is that, generally speaking, only one individual would be working with a particular plan at any one time. This would avoid 'multi-user' problems if you are intending to work iteratively with a plan, making progressive changes toward a new plan which has the potential to improve the quality of your network. However, it is possible, if required, for a plan to be 'used' by more than one person. When this is the situation, the Action-Constraints are viewable but not editable, and the plan cannot be deleted. When you create a plan, it automatically becomes 'used' by you. However, it is possible to turn this status on/off, using the Toggle option in the context menu. In a similar way, any user who did not create the plan, can use the Toggle option to activate his/her 'used' status for that plan. The option can therefore be used to hand over the 'use' of the plan to a different single user, or (if explicitly required) it can be used to share the 'use' of the plan amongst multiple users. In situations where you may want multiple users to work on the same plan, but have the freedom to edit the Action-Constraints for that plan, you can utilise the Duplicate option. This enables different 22
Using ASSET ACP users to 'branch off' from the same original plan into potentially different proposed network plans. It also enables you to work on a copy of an existing plan, so that you can experiment with different Action-Constraints, while still retaining the original plan. Note: When exporting plans from a project using XML Export, only plans marked as 'Used' will be exported. For more information, see About the File Menu on page 11.
Creating a New Plan from a Delta Plan In situations where you want to work with a plan that emanates from a delta plan, you can convert any delta plan into a (normal) plan. This enables you to work with a plan whose values are equivalent to how they stood at the latest stage of the delta plan, and then you can edit the ActionConstraints (this is not possible in a delta plan). You can then run a secondary optimisation from the point already reached in the delta plan. For more information on the context menu, including the Toggle and Duplicate options, see Using the Context Menu on page 30.
Creating Plans for Optimisation or Analysis There are two basic methods of creating a plan in ASSET ACP.
Using the Plan Setup to create a plan
Using the Auto Plan Setup to create a 'recommended' plan
Here is a brief summary of each method:
The Plan Setup method enables you to specify the region and the filters (cells) for the plan, and then manually assign the appropriate Action-Constraints templates. It can be launched either from the Workflow, or directly from the Map View. The latter is quicker and easier if the Map View is already displaying the correct region and filters. This method is recommended for users who wish to create plans without any recommendations from the tool.
The Auto Plan Setup method can automatically recommend the grouping of cells into filters, and consequently facilitates the assigning of the appropriate Action-Constraints template to those filters. It can also automatically determine the geographic area for the resultant plan, by creating a vector. The concept behind this method is that it can automate some of the pre-optimisation tasks (which would be done manually when using the Plan Setup method). This method is recommended for users who wish to create plans helped by recommendations from the tool. It can be launched either from the Workflow, or directly from the Map View. The latter is quicker and easier if the Map View is already displaying the correct region and cell filters. A fuller description of this method is included in Using the Auto Plan Setup Method to Create a Plan on page 27.
If you launch either method directly from the Map View, you should ensure that the display includes the region and the cells that you want to choose from when creating the plan. If you launch either method from the Workflow (Plan Manager), you should ensure that the display includes the region that you want to use when creating the plan. In this case, it is possible to choose cells that are not displayed on the Map View, but they must be located within the region.
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ASSET ACP 9.0 User Reference Guide
Important:
When creating a plan, two of the steps are crucial in determining which cells will be included: (i) specifying the region and (ii) selecting the site/cell filter(s).
A further (optional) step enables you to select specific vectors and/or drive test routes, which can be useful if you want to precisely define the pixels that will be included in the metrics evaluation. This is an important way of focusing the optimisation calculations, but it does not (for example, in the case of a polygon) determine which cells are included.
Using the Plan Setup Method to Create a Plan There are two basic methods of creating a plan in ASSET ACP. This section describes the Plan Setup method. To create a new plan for optimisation: 1. Check that you have a Map View window open that displays the region and cells that you want to include. (However, if you prefer to enter precise co-ordinates, an open Map View is not essential.) 2. Open the Workflow by clicking the shortcut button
on the main ASSET ACP toolbar.
3. In the left-hand pane, select Plan Manager.
4. Click the Plan Setup button, then click the Plan Setup option. 5. In the Plan Wizard that appears, type a name for the plan. If required, you can select an existing plan as a template. For information on this, see the following section. Click Next. 6. Check that the region for the plan is correct. If necessary, you can modify the region by entering precise co-ordinates.
Click Next.
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Using ASSET ACP
7. Select one or more filters to determine which sites/nodes and cells are to be considered in the plan.
Click Next. 8. The next step of the wizard enables you to select the appropriate Action-Constraints templates on a filter basis. Note: Anything you edit here can be modified after creating the plan, using the ActionConstraints dialog box. In fact, if preferred, you can skip this step now, and do it later, as described in Using the Action-Constraints Dialog Box on page 41. Use the Add button to specify each filter-template combination. (You can delete a row by clicking .) Here is an example:
Where appropriate, you can use the up and down arrows to set the filter priorities. Only one template (per mechanism) can be assigned to a filter. Therefore, in cases where an object exists in more than one filter in this dialog box, the filter priority number is important in determining which template is assigned. If required, you can check the contents of the relevant filter by clicking
.
Tip: You can edit any of the filter selections and/or template assignments by clicking in any of the columns. You can also edit any of the Action-Constraints Templates (in the normal way) by clicking the Manage Templates button. Click Next.
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9. If appropriate to your requirements, restricting optimisation calculations to vectors can make calculations faster and more focused, by focusing on the improvement of specific areas and/or drive test routes.
If you want to restrict the optimisation to particular vectors, select the Use Vectors checkbox and then specify the vectors under the System or User folders, as appropriate. - and/or If you want to restrict the optimisation and/or analysis to a drive test route, select the appropriate vectors from the Measurements folder. You can subsequently modify the restriction selections at any time, by right-clicking on the plan in the Plan Manager of the Workflow, and selecting Edit Vectors. 10. Click the Finish button.
Using an Existing Plan as a Template When you are creating a new plan for optimisation using the Plan Setup Method, you can choose to select an existing plan as a template for the new plan. If you do this, the cells to be included in the new plan are still determined by the region and filters that you select within the Plan Wizard, but the key difference is that all the action-constraints for cells that exist both in the original 'template' plan and in the new plan are 'copied' into the new plan. In effect, it copies the action-constraints for such cells into the Action-Constraints dialog box, but takes a fresh snapshot of the parameters in the Site Database. This option may therefore be useful if you have made changes in the Site Database since creating the original plan, and want to bring those changes into a new plan. Note: Any cells that were in the original 'template' plan, but not captured by the region and filters for the new plan, are always excluded from the new plan. Conversely, if there are cells in the new plan that did not exist in the original 'template' plan, they would need their action-constraints to be edited in the Action-Constraints dialog box (in the usual way).
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Using the Auto Plan Setup Method to Create a Plan There are two basic methods of creating a plan in ASSET ACP. This section describes the Auto Plan Setup method. The Auto Plan Setup method can be considered as an automatic plan-recommendation system. This method can be very useful when the interactions between the cells to be planned are not well known at the time when you are creating the plan. The concept behind the Auto Plan Setup method is that it can automatically identify some of the pre-optimisation tasks which would be done manually when using the Plan Setup method. In basic terms, you begin with a Map View window which contains your required region and cells. You then need to specify which cells are your 'main focus'. So this requires that those cells are already in one or more filters (you can use the normal Static or Dynamic filters, or the Selection Filter). At the stage where the Auto Plan Setup is aware of the 'main focus' cells, it can recommend the grouping of other cells into 'tiered' filters (using an algorithm based on user-defined settings). It is then simple to make the appropriate Action-Constraints template assignments. For example: Filter
Action-Constraints Template selection
Main focus
Template allowing significant changes
Recommended (tier 1)
Template allowing some changes
Recommended (tier 2)
Read-Only
Furthermore, the Auto Plan Setup can then automatically determine the geographic area that should be taken into consideration during analysis and optimisation of the resultant plan. The algorithm builds a list of all cells contained within the plan that have any 'non-Read-Only' ActionConstraints Templates associated with them. It then finds all pixels where any of these cells provides a signal strength above the relevant signal threshold defined on the Auto Plan Setup tab of the Settings page in the Workflow. An enclosed vector (polygon) is then created around all these pixels. In summary, the main benefits of this method are:
The 'tiered' filters are recommended automatically (and they are independent of currently existing filters). These tiered filters can be considered as a form of cell 'hierarchy' in terms of what can happen in the optimisation. This is based on a cell identification algorithm that uses the settings under the Auto Plan Setup tab in the Settings page of the Workflow. For more information, see Specifying the Settings on page 18.
The templates in the Action-Constraints dialog box are assigned based on the previous sequence of assignments in this dialog box, which creates consistency for iterative use of the Auto Plan Setup.
You can manually override these recommendations (if you have the relevant permissions).
The geographic area for the eventual evaluation of the plan can be automatically determined. Note: Depending on the planning region size, cell volumes, and map data resolution, the running of the algorithms for the filters and the geographic area can take some time.
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To create a new auto plan for optimisation: 1. If you intend to use the 'Create Restriction Polygon' option, a valid Reference Terminal Type must have been specified on the Strategy page of the Optimiser Workflow. 2. Check that you have a Map View window open that displays the region and cells that you want to include. (However, if you prefer to enter precise co-ordinates, an open Map View is not essential.) 3. Open the Workflow by clicking the shortcut button
on the main ASSET ACP toolbar.
4. In the left-hand pane, select Plan Manager.
5. Click the Plan Setup button, then click the Auto Plan Setup option. 6. In the Auto Plan Wizard that appears, type a name for the plan. Click Next. 7. Check that the region for the plan is correct. If necessary, you can modify the region by entering precise co-ordinates. Click Next. 8. Select one or more filters to determine which sites/nodes and cells are to be considered in the plan.
Click Next. 9. Select one or more filters to define which cells should represent the 'main focus'. Click Next. 10. The 'Review Recommendations' step of the wizard shows the Focus filter and the recommended 'Tier 1' and 'Tier 2' filters, each associated with their appropriate ActionConstraints templates. Here is an example:
You can edit any of the filter selections and/or template assignments by clicking in the Filter column or in any of the planning mechanism columns. You can also edit any of the ActionConstraints Templates (in the normal way) by clicking the Manage Templates button. You can use the button if you need to specify more filter-template combination rows, and you can delete rows by clicking .
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Where appropriate, you can use the up and down arrows to set the filter priorities. Only one template (per mechanism) can be assigned to a filter. Therefore, in cases where an object might exist in more than one filter in this dialog box, the filter priority order is important in determining which template is assigned. You can check the contents of the relevant filter by clicking
.
11. If you want the Auto Plan Setup to automatically determine the geographic area that should be taken into consideration during evaluation of the resultant plan, select the 'Create Restriction Polygon' option. (You can only do this if a valid Reference Terminal Type has been specified on the Strategy page of the Optimiser Workflow.)
If you select this option, the Auto Plan Setup will run the restriction polygon algorithm and store the associated vector. The new vector subsequently appears in the ACP folder in the Vector Manager and in the Map View's Data Types list (where it can be visualised). Click Next. 12. If required, you can restrict optimisation calculations to vectors to make calculations faster and more focused, by concentrating on the improvement of specific areas and/or drive test routes.
If you want to restrict the optimisation to particular vectors, select the Use Vectors checkbox and then specify the vectors under the System or User folders, as appropriate. - and/or If you selected the 'Create Restriction Polygon' in the previous step, the 'Use Restriction Polygon' checkbox will be already selected, but you have the option to deselect it. - and/or If you want to restrict the optimisation and/or analysis to a drive test route, select the appropriate vectors from the Measurements folder. You can subsequently modify any of the restriction selections at any time, by right-clicking on the plan in the Plan Manager of the Workflow, and selecting Edit Vectors. 13. Click the Finish button.
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Using the Context Menu When you are viewing the Plan Manager, there is also a context menu available, which you can access by right-clicking on the appropriate plan or delta plan. Here is an example:
Example of Context Menu for Plans or Delta Plans
This not only provides quick access to the same options as most of the main buttons, but also provides extra options: Option
Available for
Description/Comments
Action-Constraints
Plans
See Using the Action-Constraints Dialog Box on page 41.
Edit Vectors
Plans and delta plans
Enables you to modify the vector selection for a plan.
Summary
Plans
Shows the included cells, the planning region (size, location, resolution). Tip: It also provides an Update 2D View button, which can be very useful.
Initial Report
Plans
Shows the current values, and the constraints, of the network contained in the plan, and the possible network parameter changes that may be considered in an optimisation (as appropriate).
Delta Report
Delta plans
The current values, and the constraints, of the network contained in the delta plan, and the specific network parameter changes 'proposed' by the Optimiser.
Final Report
Delta plans
A complete report of the state of the 'optimised' network. In other words, the current values are replaced by the 'proposed' values (only in the report, not in the database).
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Option
Available for
Description/Comments
Analysis
Plans and delta plans
This enables you to run an analysis, in order to evaluate any plan configuration or compare any two configurations. You can output associated reports. See Analysing and Evaluating Plans on page 73.
Financial Analysis
Plans and delta plans
Perform a financial analysis of your network. This is a licensed module that can help you make informed network planning decisions. For more information, see the Financial Analysis User Reference Guide.
Optimise
Plans and delta plans
The automatic Optimiser can consider an extensive range of physical design and network parameter settings in order to improve the performance of the radio network. See Running an Optimisation on page 66.
Duplicate
Plans
This is a useful option in situations where you want to:
Work on a copy of an existing plan, so that you can experiment with different Action-Constraints, while still retaining the original plan.
Work on a copy of a plan that is being 'Used' by someone else, but want the freedom to edit the Action-Constraints for that plan.
For more information, see Viewing and Using Plans in the Plan Manager on page 22. Duplicate
Delta plans
This is a useful option in situations where you want to work on a plan which emanates from a delta plan. The key benefits are:
The plan values are equivalent to how they stood at the latest stage of the delta plan
You can edit the Action-Constraints (this is not possible in a delta plan)
You can then run a secondary optimisation from the point already reached in the delta plan
For more information, see Viewing and Using Plans in the Plan Manager on page 22. Rename
Plans and delta plans
A quick way to rename a plan or delta plan. These names must always be unique within a project.
Delete
Plans and delta plans
When you delete a plan, its 'child' delta plans are also removed. However, a delta plan can be deleted individually.
Bookmark
Plans and delta plans
This simply acts as a 'bookmark', so that you can quickly identify the plan you have been working on. It also appears as the default plan in the dialog boxes where you need to select a plan.
Toggle Use
Plans and delta plans
You can use this option to toggle the 'Used' status of a plan. The option can be used, for example, to 'release your usage' of a plan. This may, for example, enable another user to 'obtain the usage' of that plan. For more information, see Viewing and Using Plans in the Plan Manager on page 22.
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Option
Available for
Description/Comments
Set Active Cells to Selection Filter
Plans and delta plans
This enables you to quickly update (overwrite) the contents of the Selection Filter with the 'active' cells that are in the selected plan. For more information about the Selection Filter, see the ENTERPRISE User Reference Guide.
Refresh
Plans and delta plans
Refreshes the page.
Viewing Plans in the Map View Window In addition to viewing plans within the Plan Manager, there are also some viewing options in the Map View window. When you have created plans, you can view that region in the Map View. To do this: 1. Ensure you have a Map View window open that will include the planning region for the plan. 2. On the Map View toolbar, click the
button.
3. In the Map Information Control dialog box, click the Data Types tab. 4. Select the required plan under the Plans heading:
5. Click the Apply button.
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The planning region is displayed:
6. If required, you can double-click the plan name in the Map Information and Control, and select a different display colour. Important: The other items displayed (including the nodes or sites) depend on which other items are selected in the Data Types (this may also depend whether a Favourite View has been initially displayed). This plan viewing option does not discriminate in terms of nodes/sites; it simply visualises the planning region.
About Plan Viewing Options When you are viewing plans in the Map View, you can use some additional options in the Map View window. To access these options: 1. In the Map Information and Control, right-click the required plan:
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2. Click the required option. This table describes the options: Option
Description
Plan Summary
A summary which lists the included cells, and the planning region (size, location, resolution). Tip: The summary also includes an Update 2D View button, which can be very useful.
Apply (or Remove) Sampling
See About the Sampling Option on page 34.
Update Selection Filter
Enables you to quickly update (overwrite) the contents of the Selection Filter with the cells that are in the selected plan. For more information about the Selection Filter, see the ENTERPRISE User Reference Guide.
Properties (all options)
In the same way as for other items in the Data Types, these options enable you to manage the display properties of each item. Tip: The Properties option can also be accessed by doubleclicking the plan name.
3. If you have modified one of the visual options (Apply Sampling, Properties), you need to click the Redraw button to refresh the Map View.
About the Sampling Option In the Clutter Parameters, on the General Parameters tab, it is possible to specify that you want to enable cost function sampling for specific clutter types, so that only a subset of the total pixels are used for an optimisation. This is described in Setting the General Clutter Parameters on page 14. If you have used sampling, whenever you are viewing plans in the Map View, you can choose to modify the highlighted planning region so that it displays only the exact pixels that will be included in the optimisation calculations. To do this: 1. In the Map Information and Control, right-click the required plan (under the Plans heading in the Data Types). 2. Click the 'Apply Sampling' option. 3. Click the Redraw button. If some of the clutter parameters have been set to use sampling, only the corresponding pixels will be displayed. Here is an example:
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Applying a Plan to the Database The Apply to Database option enables you to Apply any of your plans or delta plans to the database (a delta plan is the result of an optimisation run from an original plan, but you can Apply either type of plan, optimised or otherwise). The Apply to Database option is equivalent to a normal manual Apply in the Site Database, and it enables you to use the complete functionality within ASSET ACP and ASSET. For example, you can analyse the performance of the plan (using arrays and reports) within ASSET, and make any necessary subsequent manual changes to the Site Database. As is the normal case for all Applied data, you can choose to subsequently Commit the data. There is also a 'Temp Apply' option, described in the following section. There are key differences between the Temp Apply and the Apply to Database options. See Comparison between Temp Apply and Apply to Database on page 37. Important: You can, if required, use the Restore All option after using Apply to Database, but please note that this will restore the database back to the last Committed configuration, which may lead to:
Any previously Applied changes in the Site Database being lost (in the normal way)
A configuration in the Site Database that is different from the plan that you created to start with (because the plan, when created in the Plan Manager, is independent of subsequent database changes)
To use the Apply to Database option: 1. Within the left-hand pane of the Workflow, select Plan Manager.
2. Select the appropriate plan. 3. Click the Apply Plan button. 4. Click the Apply to Database option. The plan is now applied to the database.
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Applying a Plan Temporarily to the Database This option enables you to 'Temporarily Apply' of one of your plans to the database, so that you can analyse the performance of the plan (using arrays and reports) within ASSET. The main benefit of this is that you can experiment with the potential benefits of the plan, and subsequently revert to the previous configuration in the database. There is also a normal 'Apply to Database' option, described in the previous section. There are key differences between the Temp Apply and the Apply to Database options. See Comparison between Temp Apply and Apply to Database on page 37. To use the Temp Apply option: 1. In the left-hand pane of the Workflow, select Plan Manager.
2. Select the appropriate plan. 3. Click the Apply Plan button. 4. Click the Temp Apply option. The plan is now temporarily applied to the database. You will see the appropriate cell parameters temporarily modified in the Site Database window, but the whole Site Database is in a read-only state. The read-only state will remain in place until you decide to revert to the previous configuration in the database. To revert to the previous configuration in the database: 1. Select the appropriate plan. 2. Click the Temp UnApply button. The database is now reverted to its previous configuration, and the Site Database window is active again.
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Comparison between Temp Apply and Apply to Database There are some key differences between the 'Temp Apply' and the 'Apply to Database' options, as summarised here: Summary of Temp Apply When you click Temp Apply, you can view the temporary changes in the Site Database window, which, at this point, appears in a read-only state. This operation is fundamentally different from the normal Apply operation used in the rest of ENTERPRISE, because it does not overwrite any changes you might have made in the Site Database since you created the plan. In other words, when you subsequently revert it from its 'temporary' state (by clicking Temp UnApply), nothing will have changed from the configuration that was in place immediately before you clicked Temp Apply.
You cannot make any manual changes to the Site Database while it is in this 'temporary' restrictive state.
The operation does not affect other users who are sharing the project.
You cannot close a session (that is, close the project) while the Site Database is in the 'temporary' state. It is obligatory to revert it by clicking Temp UnApply before you close your session.
The Temp Apply operation is independent of your user-specific object permissions (since no values are written to the database).
Summary of Apply to Database This is equivalent to a normal (manual) Apply, which means that it will overwrite any changes you might have made in the Site Database since you created and optimised the plan. In other words, if you had made some changes to the relevant cells since that time, it will overwrite those changes with the new values when you click the Apply to Database option.
You can make further manual changes to the Site Database, in the normal way, after this operation.
You will be able to use the Restore option in the Site Database, if necessary, to restore to the previous committed state (assuming the network elements had at some stage been previously committed).
The operation may subsequently affect other users who are sharing the project, in the normal way, if you choose to Commit the changes.
You can close a session (that is, close the project) in the normal way, if required, with some changes in the Applied state.
The Apply to Database operation is always dependent on your user-specific object permissions.
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Deleting a Plan To delete an optimisation plan: 1. Within the left-hand pane of the Workflow, select Plan Manager. 2. Select the appropriate plan. 3. Click the Delete Plan button. 4. Click Yes to proceed. The plan is now removed. (You cannot delete a plan if it is 'in use' by more than one user.)
Setting Action-Constraints for Plans The purpose of action-constraints in ASSET ACP is to allow certain network parameter changes to be considered in a network optimisation, but at the same time impose meaningful limitations and restrictions on those changes, in order to accurately represent the real-world environment. In ASSET ACP, there are two separate 'sources' of action-constraints:
Action-constraints that you can set up and edit within the Optimiser Workflow
Action-constraints that you can set for specific network elements directly within the Site Database
Important: Action-constraints that are set in the Site Database are always auto-populated into the Action-Constraints dialog box when you create a plan. You then have the freedom to modify those action-constraints at that stage, if required. When you run an optimisation, the Optimiser reads the action-constraints exclusively from the Action-Constraints dialog box, regardless of their original 'source'. This flexibility enables you to:
Set specific action-constraints in the Site Database, and then edit these action-constraints (if required) and set up further action-constraints (if required) in the Action-Constraints dialog box. - or -
Set up action-constraints exclusively in the Action-Constraints dialog box.
This chapter focuses on the plan-specific Action-Constraints dialog box within the Optimiser Workflow. For more detailed information about the action-constraints within the Site Database, see About Action-Constraints on page 83.
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About the Action-Constraints Dialog Box The ASSET ACP tool focuses on automatic optimisation of plans. The Action-Constraints dialog box plays a crucial part in this process. Here is some key information about its importance:
The Action-Constraints dialog box not only sets the constraints for the network optimisation, but, crucially, it also sets the possible actions (namely, the network parameter changes) that can take place.
In the majority of cases, when you have created a new plan, you must set possible changes in the Action-Constraints dialog box, otherwise an optimisation will not run. The only exception is when you are performing an Antenna optimisation where electrical or mechanical tilts have been set on the Antenna Constraints tab in the Site Database before the plan was created.
For additional information about the action-constraints, see About Action-Constraints on page 83.
Example of Action-Constraints dialog box
The user interface of the Action-Constraints dialog box is designed to help you. The two main guiding factors are the colour distinctions and the checking facility: Colour Backgrounds There are two colour backgrounds for columns in the dialog box:
The columns that cannot be edited (for example, those that show the current values of the plan) are presented on a blue background.
The columns that can be edited (for example, those for which action-constraints can be set for the plan optimisation) are presented on a green background.
Checking Facility The Check button is extremely useful for automatically verifying that the plan's action-constraints are valid, and ready for the optimisation to run.
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For example, it can show you:
How many 'Degrees of Freedom' are in the plan, according to the current state of the Action-Constraints. This value emanates from the amount of variables in the plan. This picture represents a plan where fifteen of the antennas can each undergo a possible azimuth change:
If there are no Degrees of Freedom, then the optimisation will not be allowed to run.
The feedback may display an error or a warning, for example:
Errors will not allow the optimisation to run; warnings will allow it to run, but the message is aimed at making you aware of the situation. Important: It is recommended that you make full use of all these guiding factors to ensure everything is set up correctly before optimising any plan.
About the Fixed Columns for the Action-Constraints The Action-Constraints dialog box contains many columns for the potential network parameter changes. These sets of columns exist for each planning mechanism (Antenna/Power). One of the most important columns for each group of action-constraints is the 'Fixed' column. Some basic principles are:
If the Fixed checkbox for any action-constraint is selected: o
That action-constraint (for the object in that row) can be considered as completely inactive.
o
The existing values - although inactive - remain in place just in case you want to reuse them later, by removing the Fixed setting. Unless that happens, they stay inactive.
Here is an example:
In one of the rows, the Fixed checkbox for the Azimuth action-constraint is selected. Therefore, when the optimisation is run, no azimuth changes will be considered for that particular antenna in that row.
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The above principles are true whether the Action-Constraints dialog box is edited manually or by using Template Assignments. With specific regard to changes made to the ActionConstraints values by assignment from Templates, you should note the following: o
For each planning mechanism (Antenna/Power), there is a Read Only template available. When this is assigned to a filter, all the 'Fixed' checkboxes (for the objects in the associated filter, and independently for each mechanism) become automatically selected in the Action-Constraints dialog box.
o
When you create a template, it is likely that you will not have selected all the potential action-constraints in that template. When you assign that template to a filter, the 'Fixed' checkboxes for the action-constraints that were unselected in the template become automatically selected in the Action-Constraints dialog box (for the objects in the associated filter and independently for each mechanism). For example, if a template has only Azimuth (Antenna mechanism) selected, the other action-constraints (Tilts, Heights, Device/Pattern) would all be set to 'Fixed' in the Action-Constraints dialog box, after the template assignment. For more information, see Assigning Action-Constraints Templates to Objects on page 63.
Using the Action-Constraints Dialog Box The Action-Constraints dialog box plays a crucial role in ASSET ACP, because it enables you to specify which parameters can be changed (for the cells that can be planned) during optimisation. You can do this for one or both of the planning mechanisms. For additional useful information about the action-constraints, see About the Action-Constraints Dialog Box on page 39. When you run an optimisation, there are two planning mechanisms you can use:
Antenna
Power
ASSET ACP provides the flexibility to run optimisations based on any single mechanism, or both, according to your optimisation strategy. The Action-Constraints dialog box presents a tabular display containing a tab for each mechanism. There is also a Summary tab showing how many sites, cells, and antennas are in the Plan. The other tabs (Antenna/Power) display the parameters relevant to each planning mechanism, which can be briefly described as:
The current values of the network contained in the Plan
The constraints, that is, the restrictions on what can be changed, in terms of objects, ranges, limits and so on
The actions, that is, all the possible network parameter changes that may be considered in the optimisation
Important: The action-constraints of any plans which already have delta plans are always in ReadOnly format. You can edit the Action-Constraints for an optimisation plan. Note: If you are only intending to analyse a plan, you may not need to edit the action-constraints.
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To edit the Action-Constraints for an optimisation plan: 1. Open the Optimiser Workflow, by clicking ASSET ACP from the Tools menu. 2. In the left-hand pane, select Plan Manager.
3. Select the appropriate Plan, and click the Constraints button. The Action-Constraints dialog box appears. For the selected Plan, you can edit the constraints and/or the possible changes. You can do this:
Individually for each object, on a manual basis. You can employ functionality similar to that in Microsoft® Excel® to do this, such as copying and pasting. - or -
Using Action-Constraints Templates that you have created, which you can: o
Manually assign to objects in the Action-Constraints dialog box, under the Templates column, - or -
o
Assign to objects on a 'filter-specific' basis, by clicking the Assign Templates button.
Important: When you have finished making changes in the Action-Constraints dialog box, you must always click 'Apply', in order to save the changes.
About the Viewing Options for Action-Constraints You can perform many kinds of viewing operations similar to that in Microsoft® Excel®, by clicking the appropriate within the dialog box. There are two distinct 'levels' in the Action-Constraints dialog box, where the
appears:
The section headings (ID, Current Values, Azimuth, Pilot Power, Candidate Planning and so on)
The column headings (Property, Cell, Min, Max, Step, Fixed and so on)
Example of Heading levels in Action-Constraints dialog box
For the Section headings, when you click
Show/hide columns (within the section)
For the Column headings, when you click
42
, you can perform this viewing option:
Show/hide column
Sort ascending
, you can perform these viewing options:
Using ASSET ACP
Sort descending
Show all rows
Filter (gives option to show only the rows containing a chosen value in column)
In addition, if you prefer, you can perform similar viewing operations using the Show/Hide button:
Show/Hide button
About the Methods of Editing the Action-Constraints The Action-Constraints dialog box is very flexible, and enables you to set up the action-constraints for your optimisation plans in ways that suit your specific requirements. As you gain experience in using the ASSET ACP tool, you will develop your own preferences in how you approach this important part of the optimisation process. Important: Whichever method(s) you use, you must always click 'Apply' in the Action-Constraints dialog box, when you have finished, in order to save the changes.
In summary, as previously described, you can take different approaches to editing these values:
Individually for each object, on a manual basis
Using action-constraints templates
A combination of the above
In very simplified terms, here is some general advice on how you might use each method: Manually Editing the Action-Constraints Values If you only want to set up or edit a single parameter, for example an Azimuth Change Step, it is probably easier and quicker to edit the value directly in the Action-Constraints dialog box:
Example of Azimuth values in the Action-Constraints dialog box
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If you want to set up different values for different groups of cells, make full use of the filters when you edit the values.
Important: o
These filters only display the cells included in the plan when it was created. Therefore, they are intrinsically 'subsets' of the corresponding filters that you would view in the Site Database.
o
Different filters can be selected for each planning mechanism.
o
Each time you open a project, the filters in this dialog box will always default to the filter specified on the Filters tab of the Preferences dialog box, under the File menu.
You can employ functionality similar to that in Microsoft® Excel®, such as: o
Copying and pasting single/multiple values within the dialog box
o
Copying and Pasting values directly to and from Excel
o
Pressing the Ctrl-Shift-DownArrow/UpArrow keys (as a quick method of highlighting an active column)
Assigning Action-Constraints Templates to Cell Filters If you want to set up or edit a variety of parameters, such as values for Mechanical Downtilt, Azimuth and Height, it is probably easier and quicker to set up Templates, and then use the Assign Templates button to assign the template values to the objects:
Example of Assigning Action-Constraints Templates to Cell Filters
For more information, see Assigning Action-Constraints Templates to Objects on page 63.
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About the Action-Constraints on the Antenna Tab The Action-Constraints dialog box contains tabs for each of the planning mechanisms. The topics in this section describes the columns under the Antennas tab. These contain the parameters relevant to the Antenna planning mechanism, and can be briefly described as:
The current values of the network contained in the Plan
The constraints, that is, the restrictions on what can be changed, in terms of objects, ranges, limits and so on
The actions, that is, all the possible network parameter changes that may be considered in the optimisation
Tip: The Action-Constraints Templates provide you with a quick and easy way of setting up action-constraints so that they can be reused across all or some of your plans. You should make full use of these templates so that you avoid duplication of constraints that may be generic to all plans. In other words, you should avoid spending time setting many constraints directly in the Action-Constraints dialog box, if there is a high chance that you will be using those actionconstraints for other plans. See About Action-Constraints Templates on page 53.
Antenna Tab - ID Heading This section of the Antenna tab of the Action-Constraints dialog box displays the column names under the ID heading:
Columns in the ID section of the Antenna tab in the Action-Constraints dialog box
This table describes the options: Column Heading
Description
Property, Site/Node, Cell, Layer/Carrier, Technology, Logical Antenna Index, Antenna Instance
These are object identities relating to the network elements included in the plan.
Template
If applicable, this is the assigned template that determines the possible changes in the row. If the changes are independent of a template, this field will display 'Custom'. If the Read Only template is assigned, all the 'Fixed' checkboxes in the row are selected.
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Antenna Tab - Current Values Heading This section of the Antenna tab of the Action-Constraints dialog box displays the column names under the Current Values heading:
Columns in the Current Values section of the Antenna tab in the Action-Constraints dialog box
This table describes the options: Column Heading
Description
Device/Pattern, Electrical, Mechanical, Total Tilts, Azimuth, Height, Shared identity, Easting/Northing.
All values relevant to the starting Plan.
Antenna Tab - Antenna Constraints Heading This section of the Antenna tab of the Action-Constraints dialog box displays the column names under the Antenna Constraints heading:
Columns in the Antenna Constraints section of the Antenna tab in the Action-Constraints dialog box
This table describes the options: Column Heading
Description
Height Variation
If you want to use height variation, select the checkbox. This defines whether the heights for individual antennas may differ at a specific Property. Note: If height variation is not selected, all antennas on the same cell layer (GSM) or all carriers at this Property (all other technologies) must be at the same height. However, GSM cells for different cell layers, or cells of different technologies (for example, GSM and UMTS) can still have antennas with heights different from each other.
Minimum Azimuth Difference
This enables you to set a minimum separation (in degrees) that you are willing to accept between antennas of the same height on a specific Property.
Co-Location Enabled
This enables you to allow antenna devices to share co-location parameters (identical location co-ordinates, height and azimuth, and existing on the same Property). Note: If Antenna Co-location is not enabled for a Property, no antenna sharing or co-location configuration can be accepted as a valid starting configuration or examined as a potential optimisation solution by the Optimiser. For more information, see How the Optimiser Considers Shared Antennas on page 57.
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Column Heading
Description
Forbidden Azimuth Range Min/Max
This enables you to define, for a specific antenna, an orientation range that the automatic optimisation cannot consider for azimuth changes. For this, the minimum represents a clockwise bearing (the start azimuth of the forbidden range) and the maximum represents an anti-clockwise bearing (the end azimuth of the forbidden range). For descriptive detail on this, see About the Forbidden Azimuth Range on page 47.
About the Forbidden Azimuth Range In the Action-Constraints dialog box, on the Antenna tab, there is a section heading named Antenna Constraints, and these constraints enable you to restrict the available options that can be used to optimise the antennas located on a Property. One of the constraints enables you to define, for a specific antenna, an orientation range that the automatic optimisation cannot consider for azimuth changes. For this, the minimum represents a clockwise bearing (the start azimuth of the forbidden range) and the maximum represents an anticlockwise bearing (the end azimuth of the forbidden range). Note: This description of the Forbidden Azimuth Range also corresponds to the similar option on the Antenna Constraints tab in the Site Database. (Action-constraints that are set in the Site Database are always auto-populated into the Action-Constraints dialog box when you create a plan, but they can be modified at that stage, if required.) The way that you set the forbidden azimuth parameters depends on your exact requirements. This illustration shows the importance of setting up the minimum and maximum settings correctly:
Examples of forbidden azimuth ranges with corresponding parameters in the Action-Constraints dialog box
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This next picture illustrates a more specific example of how the forbidden azimuth might be used within an antenna optimisation. The example represents an antenna currently set to 60° with an optimisation azimuth range between 0° and 120°, but with a forbidden range between 90° and 105°:
Specific example of how the forbidden azimuth might be used within an antenna optimisation
This picture shows how the corresponding parameters would be set in the Action-Constraints dialog box:
Example of the corresponding parameters in the Action-Constraints dialog box
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Antenna Tab - Electrical Tilt/Patterns Heading This section of the Antenna tab of the Action-Constraints dialog box displays the column names under the Electrical Tilt/Patterns heading:
Columns in the Electrical Tilt / Patterns section of the Antenna tab in the Action-Constraints dialog box
This table describes the options: Column Heading
Description
Use Min/Max/Step
Serves as a 'switch'. Select this if you want Min/Max/Step values to be used in the optimisation, but do not select it if you want Specified Device/Patterns to be used instead.
Min/Max/Step
You can enable the electrical downtilt of the antenna to be changed, by specifying Minimum and Maximum downtilts, and the allowed Step of change (all in degrees).
Fixed
Select this if you want nothing to be changed for Electrical Tilt/Patterns. If this is selected, the 'Use Min/Max/Step' checkbox will have no effect.
Specified Device/Patterns
You can enable the antenna devices and/or patterns to be changed. Tip: The easiest way to set up these is to use a template. See Configuring ActionConstraints Templates for Antenna Planning on page 55. Note: If you want to enable these specified patterns to be used during optimisation, ensure that the Min/Max/Step checkbox is not selected.
Device Fixed
Select this if you want the pattern to be allowed to change, but not the device.
Notes:
Total downtilt must also be set, in order to allow the required changes to the electrical downtilt during optimisation. See Antenna Tab - Total Downtilt Heading on page 50.
For an optimisation to consider electrical downtilt changes, the appropriate antenna patterns for each antenna device need to be set up in the Cellular Antennas dialog box.
If any of the three antenna constraints for electrical tilt (Min; Max; Step) are enabled for an antenna in the Site Database, the ‘Use Min/Max/Step’ checkbox for that antenna is automatically selected in the Action-Constraints dialog box, but this is editable.
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Antenna Tab - Mechanical Downtilt Heading This section of the Antenna tab of the Action-Constraints dialog box displays the column names under the Mechanical Downtilt heading:
Columns in the Mechanical Downtilt section of the Antenna tab in the Action-Constraints dialog box
This table describes the options: Column Heading
Description
Min/Max/Step
You can enable the mechanical downtilt of the antenna to be changed, by specifying Minimum and Maximum downtilts, and the allowed Step of change (all in degrees).
Fixed
Select this if you want nothing to be changed for mechanical downtilt.
Note: Total downtilt must also be set, in order to allow the required changes to the electrical downtilt during optimisation. See Antenna Tab - Total Downtilt Heading on page 50.
Antenna Tab - Total Downtilt Heading This section of the Antenna tab of the Action-Constraints dialog box displays the column names under the Total Downtilt heading:
Columns in the Total Downtilt section of the Antenna tab in the Action-Constraints dialog box
This table describes the options:
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Column Heading
Description
Min/Max
You can specify limits for the total downtilt. Any changes made to the electrical and/or mechanical downtilt during optimisation would not be allowed to exceed these limits.
Fixed
Select this if you want nothing to be changed for the total downtilt.
Using ASSET ACP
Antenna Tab - Azimuth Heading This section of the Antenna tab of the Action-Constraints dialog box displays the column names under the Azimuth heading:
Columns in the Azimuth section of the Antenna tab in the Action-Constraints dialog box
This table describes the options: Column Heading
Description
Min/Max/Step
You can enable the azimuth of the antenna to be changed, by specifying Minimum and Maximum azimuths, and the allowed Step of change (all in degrees).
Fixed
Select this if you want nothing to be changed for the azimuth.
If you want to set up a forbidden azimuth range, see About the Forbidden Azimuth Range on page 47.
Antenna Tab - Height Heading This section of the Antenna tab of the Action-Constraints dialog box displays the column names under the Height heading:
Columns in the Height section of the Antenna tab in the Action-Constraints dialog box
This table describes the options: Column Heading
Description
Use Min/Max/Step
Serves as a 'switch'. Select this if you want Min/Max/Step values to be used in the optimisation, but do not select it if you want Values to be used instead.
Min/Max/Step
You can enable the height of the antenna to be changed, by specifying Minimum and Maximum heights, and the allowed Step of change (all in degrees).
Values
If applicable, this initially shows a list of values specified in the Site Database (see Configuring Property Antenna Constraints on page 87). Alternatively, you can manually edit the list of values in the column. Note: If you want to enable these values to be used during optimisation, ensure that the Min/Max/Step checkbox is not selected.
Fixed
Select this if you want nothing to be changed for the antenna height. If this is selected, the 'Use Min/Max/Step' checkbox will have no effect.
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About the Action-Constraints on the Power Tab The Action-Constraints dialog box contains tabs for each of the planning mechanisms. The columns available on the Power tab can be briefly described as:
The current values of the network contained in the Plan
The constraints, that is, the restrictions on what can be changed, in terms of objects, ranges, limits and so on
The actions, that is, all the possible network parameter changes that may be considered in the optimisation
The columns contain all the power-related parameters that correspond to the technology of the network element. For some of these parameters, there is an option to set a 'uniform group' constraint. This enables you to specify groups of cells that you want to be adjusted uniformly by the Optimiser. To do this: In the appropriate 'Uniform Group Id' column, specify a number (0 or greater) for the cells that you want to be grouped by the Uniform Power constraint. It is possible, if required, to use different numbers to make separate groups. If this option is inactive for a cell, the value shows as -1. Note: If this is enabled, the respective initial power values for the associated cells must be the same in order for changes to be considered by the Optimiser. If the initial power values are not the same, then this constraint will not be applicable and will be ignored.
Tip: The Action-Constraints Templates provide you with a quick and easy way of setting up action-constraints so that they can be reused across all or some of your plans. You should make full use of these templates so that you avoid duplication of constraints that may be generic to all plans. In other words, you should avoid spending time setting many constraints directly in the Action-Constraints dialog box, if there is a high chance that you will be using those actionconstraints for other plans. See About Action-Constraints Templates on page 53.
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About Action-Constraints Templates The Action-Constraints Templates provide you with a quick and easy way of setting up actionconstraints so that they can be reused across all or some of your Plans. This flexibility enables you to specify the action-constraints for one or both of the planning mechanisms:
Antenna
Power
Tip: You should make full use of these templates so that you avoid duplication of constraints that may be generic to all Plans. In other words, you should avoid spending time setting many constraints directly in the Action-Constraints dialog box, if there is a high chance that you will be using those action-constraints for other plans.
Example of the Actions Constraints Template Editor
When they are created, these templates can then be either:
Manually assigned to objects in the Action-Constraints dialog box, under the Templates column - or -
Assigned to objects on a 'filter-specific' basis, by clicking the Assign Templates button
Note: If you subsequently modify any values directly in the Action-Constraints dialog box after assigning a template, the Templates column (for the relevant object) automatically reverts to 'Custom'.
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Creating and Editing Action-Constraints Templates To create or edit Action-Constraints Templates: 1. Open the ACP Workflow, by clicking ASSET ACP from the Tools menu. 2. In the left-hand pane, select Plan Manager.
3. Select the appropriate plan, and click the Constraints button. 4. In the Action-Constraints dialog box, click the Manage Templates button.
5. You can now add, remove, edit, or rename a template. To add or edit a template in the Action-Constraints Template Manager dialog box: 1. If you are adding a template, click Add, name the template, click OK, and then click Edit. - or If you are editing an existing template, select it and click Edit. 2. In the dialog box that appears, click the first action or constraint that you wish to configure, for example Antenna Planning - Electrical Downtilt.
For details on the different planning actions and constraints that you can configure, see one of the following sections: o
Configuring Action-Constraints Templates for Antenna Planning on page 55
o
Configuring Action-Constraints Templates for Power Planning on page 58
3. In the right hand pane, edit the values for this action or constraint. For example:
4. Click the next action or constraint that you want to configure, and in the right hand pane edit the values as appropriate. You can configure any combination of actions or constraints in the same template. For example, a template can contain Antenna Planning and Power Planning actions or constraints. 5. When you have configured all of the actions and constraints that you require, click OK, and then, in the Action-Constraints dialog box, click Close.
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6. You can now assign this (or any other) template to objects on a 'filter-specific' basis in the Action-Constraints dialog box, as described in Assigning Action-Constraints Templates to Objects on page 63.
Configuring Action-Constraints Templates for Antenna Planning When creating or editing Action-Constraints Templates, you can configure antenna planning optimisation actions and constraints. These can be used with either cost mechanism to identify the optimum configuration of the antenna subsystem for a network. The concept of antenna planning in ASSET ACP is to incorporate into the optimisation the practical details of the site construction and the real environment limitations that affect the antenna subsystem. The antenna optimisation can support all the main types of actions that are allowed for the antenna subsystem. These include changes to the number of antennas, the antenna type (device and pattern), downtilt (electrical, mechanical and total), azimuth and height. This picture shows an example of the actions and constraints for antenna heights:
Example of Action-Constraints Template for Antenna Height
This table describes the antenna planning action-constraints that you can configure: Select
To
Device/Pattern
Enable the antenna devices/patterns to be changed. Select the required antenna devices/patterns from the list of antennas. Tip: To locate a particular antenna device or pattern, type the name in the Find pane, and click Find. To restrict what is displayed to just the selected items, click Show Selected. To undo this, click Show All.
Electrical Downtilt
Enable the electrical downtilt of the antenna to be changed:
Change Step indicates the allowed step of change (in degrees).
Max Change defines the maximum permitted change from the respective original value in the Site Database (in degrees).
Total Downtilt must also be selected, unless Mechanical Downtilt is considered and the Total Downtilt is to remain unchanged. Note: For an optimisation to consider electrical downtilt changes, the appropriate antenna patterns (for each antenna device) need to be set up in the Cellular Antennas dialog box.
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Select
To
Mechanical Downtilt
Enable the mechanical downtilt of the antenna to be changed:
Min Value sets the minimum mechanical downtilt that is permitted (in degrees). Any downtilts below the minimum will not be modified in the optimisation.
Max Value sets the maximum mechanical downtilt that is permitted (in degrees). Any downtilts above the maximum will not be modified in the optimisation.
Change Step indicates the allowed step of change (in degrees).
Max Change defines the maximum permitted change from the respective original value in the Site Database.
Total Downtilt must also be selected, unless Electrical Downtilt is considered and the Total Downtilt is to remain unchanged. Total Downtilt
Azimuth
Height
Enable the total downtilt (electrical plus mechanical) of the antenna to be changed:
Min Value sets the minimum total downtilt that is permitted (in degrees). Any downtilts below the minimum will not be modified in the optimisation.
Max Value sets the maximum total downtilt that is permitted (in degrees). Any downtilts above the maximum will not be modified in the optimisation.
Enable the azimuth of the antenna to be changed:
Change Step indicates the allowed step of change (in degrees).
Max Change defines the maximum permitted change (in degrees).
Min Diff at Same Height specifies the minimum permitted angular distance (in degrees) that has to be maintained if antennas for the same technology and cell layer (if applicable) are positioned at the same height.
Enable the height of the antenna to be changed:
Min Value sets the minimum antenna height that is permitted (in m). Any antennas below the minimum will not be modified in the optimisation.
Max Value sets the maximum antenna height that is permitted (in m). Any antennas above the maximum will not be modified in the optimisation.
Change Step indicates the allowed step of change (in m).
Max Change defines the maximum permitted change from the respective original value in the Site Database (in m).
Important: When configuring antenna planning actions and constraints, you should remember the following:
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The original parameter settings (for example, antenna types) are always included in the optimisation.
Any antenna parameters with values outside the {min, max} range set in the respective constraints will not be changed during the optimisation.
The antenna type, electrical downtilt, mechanical downtilt and total downtilt actions/constraints are interdependent. For example, you cannot consider changes to the mechanical downtilt without enabling changes to the electrical and/or total downtilt as well.
Using ASSET ACP
How the Optimiser Considers Shared Antennas This section provides definitions of the two types of shared antenna in ENTERPRISE, and summarises how they are considered when you run the Optimiser. In ENTERPRISE, there are two definitions of shared antennas, described as follows:
Explicitly Shared Antennas: In ENTERPRISE, this is defined as two or more logical antennas that represent a single physical antenna in a real network. This is automatically configured in the Site Database on the Antennas tab (at the cell level for GSM, and at the node level for all other technologies), if you select the same physical antenna to be used for more than one logical antenna. This is explained in the ASSET User Reference Guide. In this case, the physical configuration of the shared antenna is forced to remain identical between the appropriate cells or nodes co-located on the respective Property.
Implicitly Shared Antennas: In ENTERPRISE, this is defined as two or more antenna devices that are not explicitly shared, but share the same co-location parameters (identical location co-ordinates, height and azimuth, and existing on the same Property).
Note: If you want the Optimiser to consider a network configuration that allows antenna sharing (implicit or explicit), you must ensure the option is enabled on the Antenna Constraints tab for the relevant Properties in the Site Database. For more information, see Configuring Property Antenna Constraints on page 87. There are also options related to antenna sharing within the Settings. For more information, see Specifying the Settings on page 18. Depending on the antenna planning actions and constraints that you have specified for the considered cells:
In the case of any considered antennas that are 'explicitly' shared, their configuration (for example, mechanical tilt) can be modified (jointly) during the optimisation, but the respective antennas will remain explicitly shared.
In the case of any considered antennas that are 'implicitly' shared, their sharing status may change during the optimisation. For example, antennas that were initially shared may each end up having different configurations, and become non-shared.
In the case of all other considered antennas, their sharing status may change during the optimisation. For example, antennas that were not initially shared may each end up having the same configuration, and become implicitly shared.
Note: Whenever antennas are shared, the number of actions and respective action costs are considered appropriately, and are only counted once for the same physical antenna object. For example, a mechanical tilt change to an antenna shared between two cells would only be counted once.
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Configuring Action-Constraints Templates for Power Planning When creating or editing Action-Constraints Templates, you can configure power planning optimisation actions and constraints. These can be used with any cost mechanism to identify the optimum power levels for individual base stations. In addition, the optimum BTS Types (GSM) and Node Types (UMTS) can be identified. When optimising power levels, there are key differences between technologies. For example, in UMTS - unlike in GSM - the physical channels can be transmitted at different powers. The power in the node is shared between signalling and user traffic, and so, if less power can be allocated for signalling, more can be made available to user traffic, thus increasing the cell downlink capacity. The ASSET ACP power optimisation is sufficiently advanced to handle the differing requirements by offering technology-specific actions, such as GSM PA Output Power, UMTS Pilot Power, CDMA2000 Pilot Power, EV-DO Rated PA Power, WiMAX TX Power or LTE Max TX Power. This picture shows an example of the action-constraints for GSM PA Output Power:
Example of Action-Constraints Template for GSM cell PA Output
About GSM Power Planning Action-Constraints This table describes the GSM power planning actions you can activate for cells: Select This Action To PA Output Power
Enable the power amplifier (PA) output to be changed.
BTS Type
Enable the BTS equipment type to be changed on a site.
j
If you have selected PA Output Power, the constraints described in this table become active:
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This Constraint
Enables You To
Min Value (dBm)
Set the minimum power that is permitted (in dBm).
Max Value (dBm)
Set the maximum power that is permitted (in dBm).
Change Step (dB)
Set the permitted step of power change (in dB).
Max Change (dB)
Set the maximum permitted change from the current value in the cell (in dB).
Using ASSET ACP
This Constraint
Enables You To
Changes Allowed
Define how the current value will be allowed to change within the set ranges:
'Any' allows both higher and lower values to be examined during the optimisation.
'Only decreases' just allows lower power settings to be examined.
'Only increases' just allows higher power settings to be examined.
Important: When defining GSM power planning actions and constraints, you should remember the following:
The original parameter settings (for example, BTS equipment types) are always included in the optimisation.
Any power parameters with values outside the {min, max} range set in the respective constraints will not be changed during the optimisation.
Certain actions/constraints depend on specified performance metrics and/or cost mechanisms. For example, the BTS Type action and constraint may have an effect on the performance costs, providing that the PA Output Power option is also considered.
About UMTS Power Planning Action-Constraints This table describes the UMTS power planning actions you can activate for cells: Select This Action
To
Max TX Power
Enable the maximum transmit power to be changed.
Pilot Power
Enable the pilot power (CPICH) to be changed.
HSDPA Power
Enable the HSDPA power to be changed.
Max Power Per User
Enable the maximum power per user to be changed.
Node Types
Enable the Node equipment type to be changed on a node.
If you have selected any of the above power planning actions, the constraints described in this table become active: This Constraint
Enables You To
Min Value (dBm)
Set the minimum power that is permitted (in dBm).
Max Value (dBm)
Set the maximum power that is permitted (in dBm).
Change Step (dB)
Set the permitted step of power change (in dB).
Max Change (dB)
Set the maximum permitted change from the current value in the cell (in dB).
Fixed % of Max TX Power Specify that the appropriate power (for all the cells associated with the template) is always adjusted in proportion with the Max TX Power. This maintains the same ratio that exists in the starting plan. Note: When this is selected, the Change Step and the Changes Allowed become read-only, and the values that you set for the Max TX Power are used instead. Uniform Power
Specify that all the cells associated with the template are adjusted together. If the initial power values are not the same, then this constraint will not be applicable and will be ignored. 59
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This Constraint
Enables You To
Changes Allowed
Define how the current value will be allowed to change within the set ranges:
'Any' allows both higher and lower values to be examined during the optimisation.
'Only decreases' just allows lower power settings to be examined.
'Only increases' just allows higher power settings to be examined.
Important: When configuring UMTS power planning actions and constraints, you should remember the following:
The original parameter settings (for example, Node equipment types) are always included in the optimisation.
Any power parameters with values outside the {min, max} range set in the respective constraints will not be changed during the optimisation.
If the Uniform Power constraint has been enabled, the respective initial power values for the associated cells must be the same in order for changes to be considered by the Optimiser.
When you are using the Fixed % of Max TX Power checkbox (for Pilot Power, HSDPA Power or Max Power Per User): o
You should ensure that all the values you set for the Max TX Power planning action are compatible with your overall objectives
o
If optimising HSDPA Powers, cells will be considered for HSDPA power optimisation only if they are enabled for HSDPA (and have a Node Type that supports HSDPA)
If the Fixed Ratio and/or Uniform Power constraint has been enabled, the Optimiser will not change the Node Type from one that supports HSDPA to one that does not, and vice versa.
If a cell considered by the Optimiser cannot support HSDPA (in other words, none of its available Node Types support HSDPA or it is not supported on the cell), the Optimiser will not allow any changes to the HSDPA Power and will not consider the HSDPA-specific Fixed Ratio and Uniform Power constraints for this cell.
About CDMA/EV-DO Power Planning Action-Constraints This table describes the CDMA/EV-DO power planning actions you can activate for cells: Select This Action
To
CDMA2000 Pilot Power
Enable the pilot power to be changed.
EV-DO Rated PA Power
Enable the rated PA power to be changed.
If you have selected any of the above power planning actions, the constraints described in this table become active:
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This Constraint
Enables You To
Min Value (dBm)
Set the minimum power that is permitted (in dBm).
Max Value (dBm)
Set the maximum power that is permitted (in dBm).
Change Step (dB)
Set the permitted step of power change (in dB).
Using ASSET ACP
This Constraint
Enables You To
Max Change (dB)
Set the maximum permitted change from the current value in the cell (in dB).
Changes Allowed
Define how the current value will be allowed to change within the set ranges:
'Any' allows both higher and lower values to be examined during the optimisation.
'Only decreases' just allows lower power settings to be examined.
'Only increases' just allows higher power settings to be examined.
Important: When configuring CDMA/EV-DO power planning actions and constraints, you should remember the following:
The original parameter settings are always included in the optimisation.
Any power parameters with values outside the {min, max} range set in the respective constraints will not be changed during the optimisation.
About WiMAX Power Planning Action-Constraints This table describes the WiMAX power planning actions you can activate for cells: Select This Action
To
TX Power (Fixed and Mobile)
Enable the transmit power to be changed.
If you have selected the above power planning action, the constraints described in this table become active: This Constraint
Enables You To
Min Value (dBm)
Set the minimum power that is permitted (in dBm).
Max Value (dBm)
Set the maximum power that is permitted (in dBm).
Change Step (dB)
Set the permitted step of power change (in dB).
Max Change (dB)
Set the maximum permitted change from the current value in the cell (in dB).
Changes Allowed
Define how the current value will be allowed to change within the set ranges:
'Any' allows both higher and lower values to be examined during the optimisation.
'Only decreases' just allows lower power settings to be examined.
'Only increases' just allows higher power settings to be examined.
Important: When defining WiMAX power planning actions and constraints, you should remember the following:
The original parameter settings are always included in the optimisation.
Any power parameters with values outside the {min, max} range set in the respective constraints will not be changed during the optimisation.
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About LTE Power Planning Action-Constraints These are the LTE power planning actions that you can activate for cells:
Max TX Power (dBm)
Traffic Offset (dB)
Control Offset (dB)
Synchronisation Offset (dB)
Broadcast Offset (dB)
Multicast Offset (dB)
Reference Signal SNR Threshold (dB)
Max TA Threshold (msec)
Max Range Threshold (km)
If you have selected any of the above options, the constraints described in this table become active: This Constraint
Enables You To
Min Value
Set the minimum power that is permitted.
Max Value
Set the maximum power that is permitted.
Change Step (dB)
Set the permitted step of power change.
Max Change (dB)
Set the maximum permitted change from the current value in the cell.
Changes Allowed
Define how the current value will be allowed to change within the set ranges:
'Any' allows both higher and lower values to be examined during the optimisation.
'Only decreases' just allows lower power settings to be examined.
'Only increases' just allows higher power settings to be examined.
Important: When configuring LTE power planning actions and constraints, you should remember the following:
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The original parameter settings are always included in the optimisation.
Any power parameters with values outside the {min, max} range set in the respective constraints will not be changed during the optimisation.
Using ASSET ACP
Assigning Action-Constraints Templates to Objects When you have created Action-Constraints Templates, you can assign them to objects in the Action-Constraints dialog box. You can do this manually within the Action-Constraints dialog box, under the Templates column. However, it will often be easier to make 'filter-specific' assignments by using the Action-Constraints Assignments dialog box. To do this: 1. Within the left-hand pane of the Optimiser Workflow, select Plan Manager.
2. Select the appropriate Plan, and click the Constraints button. 3. In the Action-Constraints dialog box, click the Assign Templates button.
4. In the dialog box that appears, click Add. (If you have previously set up some filter-template combinations on this dialog box (and clicked OK) you can retrieve them by clicking the Get Last button.) 5. In the row that appears, select a filter. 6. Select the required template(s) to assign to that filter. Depending on your optimisation planning approach, you can either assign the same template to all the planning mechanisms, or you can assign different templates to each. This allows flexibility if you want to experiment with different combinations of templates. 7. Continue with the Add button until you have specified all the required filter-template combinations. (You can delete a row by clicking .) Here is an example:
Where appropriate, you can use the up and down arrows to set the filter priorities. Only one template can be assigned to an object. Therefore, in cases where an object might exist in more than one filter in this dialog box, the filter priority number is important in determining which template is assigned. You can check the contents of the relevant filter by clicking
.
8. Click OK. The assignments you have made now appear in the Action-Constraints dialog box. 9. When you have finished making changes in the Action-Constraints dialog box, you must always click Apply, in order to save the changes.
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Important: There are three points you should note regarding template assignments. Two of these points relate to default templates that are always available to you (these are in addition to the templates that are user-defined):
Read Only template - when this is assigned to a filter, all the 'Fixed' checkboxes (for the objects in the associated filter) become automatically selected in the Action-Constraints dialog box.
Unchanged template - when this is assigned to a filter, nothing is changed (for the objects in the associated filter) in the Action-Constraints dialog box. This option is necessary because you may want, for example, to assign a template for just one or two planning mechanisms, and leave the other(s) unchanged.
When you create a template, it is likely that you will not have selected all the potential action-constraints in that template. When you assign that template to a filter, the 'Fixed' checkboxes for the action-constraints that were unselected in the template become automatically selected in the Action-Constraints dialog box, for the objects in the associated filter. For example, if a template has only Azimuth (Antenna mechanism) selected, the other action-constraints (Tilts, Heights, Device/Pattern) would all be set to 'Fixed' in the ActionConstraints dialog box, after the template assignment.
All templates (read only, leave unchanged and user-defined) are assigned separately to each individual planning mechanism. Therefore, the above points are valid independently for each mechanism. For more specific information about the 'Fixed' columns, see About the Fixed Columns for the Action-Constraints on page 40.
Modifying Templates after Assigning them to Objects In situations where you modify an Action-Constraints Template that is already assigned to various objects, those changes will not be made retrospectively in the Action-Constraints dialog box for those objects. However, you can explicitly choose to make those changes in the Action-Constraints dialog box by:
Manually reassigning the template to objects in the Action-Constraints dialog box, under the Templates column
Reassigning the template to objects on a 'filter-specific' basis, by clicking the Assign Templates button
Using the 'Reassigning All Templates' option
Reassigning All Templates This method represents a quick way of implementing changes from modified Templates (as described in the first paragraph) into the Action-Constraints dialog box. This special option re-applies all the modified (that is, current) settings from all templates that are currently assigned to objects in the Action-Constraints dialog box. This operation is applicable to all three planning mechanisms. To do this: Click the Reassign All Templates button. Tip: If you want to reassign some of your currently assigned templates, but not all, you can change the template selection in the Action-Constraints dialog box to 'Custom' on the objects that you don't want to modify, before pressing the Re-assign All Templates button. 64
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Optimising a Network The ACP Workflow enables you to perform all the tasks within ASSET ACP from a single dialog box:
Example of the ACP Workflow dialog box in ASSET ACP
The principal feature of ASSET ACP is the automatic Optimiser, which can consider an extensive number of physical design and network parameter settings that affect the performance of the radio network. You can set up and start the automatic optimisation of a network configuration according to a choice of:
One or both metrics: Coverage and/or Quality
Various actions and constraints
One or both of the planning mechanisms: Antenna and/or Power
This section focuses on how to run an optimisation, and how to interpret the feedback. To start the ACP Workflow: From the Tools menu, click ASSET ACP.
Prerequisites for an Optimisation Before you start optimising your network, ensure that you, or your administrator, have (where appropriate):
Set up a project with the necessary planning data, including traffic (if applicable).
Defined the RF Array Thresholds.
Created a plan (defining the area, cell filters, and, optionally, vectors), using the Plan Manager. For more information, see Using the Plan Manager on page 21.
Defined the appropriate parameters or options on the Strategy, Traffic and Settings tabs. The Strategy tab governs the selection of which Metrics are to be used. The Traffic tab governs the selection of terminal types. The Settings tab includes thresholds for the Auto Plan Setup method.
Configured the Action-Constraints for the optimisation.
Created/loaded traffic arrays, if applicable. For traffic-based optimisations, a traffic array must be available.
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Running an Optimisation Before you can run an optimisation, you must have created at least one plan. (If appropriate, you can also choose to optimise a delta plan.) For a full list of the prerequisites, see Prerequisites for an Optimisation on page 65. To start an optimisation within the Plan Manager: 1. Open the Workflow by clicking the shortcut button
on the main ASSET ACP toolbar.
2. In the left-hand pane, select Plan Manager.
3. Select the appropriate plan, and click the Optimise button. The Optimiser dialog box appears:
4. Set the minimum time interval for the 'best cost value' plan to be saved (at each time interval, a new delta plan is saved only if the best cost value is less than the previous saved value). To do this, in the Delta Plan Writing Interval edit box, type the number of minutes and click Set. Note: At the point where you stop the optimisation, an additional delta plan is saved (according to the same criteria above), as if the next time interval had been reached. 5. If you want to view statistics information using the Statistics Graph, Statistics Details or Report buttons, ensure that the Calculate Statistics checkbox is selected. 6. To start the Optimiser, click Start. The Optimiser starts running, and can be monitored.
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Monitoring an Optimisation When you have started an optimisation, the Optimiser runs. This picture shows an example of a running scenario:
Example of the Optimiser dialog box
The following values are displayed in the Optimiser dialog box: Value
Description
Starting configuration
The name of the plan or delta plan.
Modification strategy
The modification strategy specified in the Settings.
Starting cost value
The cost for the starting configuration.
Best cost value
The cost for the best configuration that the Optimiser has found so far.
Current cost value
The current optimisation cost.
Generated cost value
The cost for a generated optimisation state.
Cost value gain; absolute; relative
The absolute gain value represented by the difference between the starting and best cost values; this gain expressed as a relative percentage.
Cost function calls
The total number of iterations that have taken place up to this point in the optimisation. This includes the iteration required for optimisation initialisation and (if applicable) any iterations rejected based on the Max Objects/Actions or Max Degradation criteria.
Iterations: accepted; generated; Accepted: The number of iterations that have been accepted by the A/G Optimiser's search algorithms as the correct "path" to take to the optimal solution. These may or may not decrease the best plan cost at any particular point in an optimisation, depending on the search algorithm in use at the time. Generated: The number of performed iterations (this is the same as the number of accepted states). A/G: The 'Accepted to Generated' ratio. States: accepted; generated; A/G
Accepted: The number of states that have been accepted by the Optimiser as valid (that is, a state that has broken no hard constraints such as Max Degradation, Max Objects/Actions, Min/Max Inter-Site Distance). Generated: The number of performed states. A/G: The 'Accepted to Generated' ratio.
Start Time, Stop Time, Elapsed Time
The time the Optimiser was started, the time it was stopped, and the elapsed time. 67
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While the optimisation is running, you can view a variety of useful feedback information, by clicking any of the following buttons:
Cost Graph - for a graphical representation of the best, current and generated cost values for each iteration
Statistics Graph(s) - for the initial and best plan values for the selected series
Cost Details - for a variety of information about the costs related to the optimisation
Statistics Details - for the statistics for the initial iteration and the most recent best plan
Optimisation Report - for complete details of the generated optimisation plans
To stop the Optimiser at any point: Click Stop (you cannot resume the optimisation when it has been stopped) Important: After stopping the Optimiser, you can still view the data it displays and the feedback graphs. This data and the graphs are available until you close the Optimiser dialog box. The data in the Optimisation Report, on the other hand, is still available until you start another optimisation.
About the Cost Graph When you are running the Optimiser, you can choose to display the Cost Graph, by clicking the appropriate button. This displays a graphical representation of the best, current and generated cost value at or up to (as applicable) each optimisation iteration. This picture shows an example:
Example of a Cost Graph
You can use this feedback to assess whether a satisfactory cost value has been achieved, and also to see the pattern of values generated by the Optimiser. To zoom in on a particular section of the graph: 1. Click and hold down the left mouse button on the graph where one corner of the required section will be and drag the mouse to create a box. 2. Release the mouse button. To zoom back out, right-click. 68
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About the Statistics Graph(s) When you are running the Optimiser, you can choose to display the Statistics Graph(s), by clicking the appropriate button. This displays a graphical representation of the initial and best plan values for a selected (Metric) series. This picture shows an example:
Example of a Statistics Graph
To select what information is shown on the graph, click Series, and in the dialog box that appears, select the required categories of information. Then click OK. To zoom in on a particular section of the graph: 1. Click and hold down the left mouse button on the graph where one corner of the required section will be and drag the mouse to create a box. 2. Release the mouse button. To zoom back out, right-click. To create another graph, click New Graph. If you are starting from a delta plan, you can view statistics from the previous optimisation by clicking Show History.
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About the Cost Details When you are running the Optimiser, you can choose to display the Cost Details, by clicking the appropriate button. This displays the following information:
The number of independent optimisation variables (Degrees of Freedom, or DOF)
The number of pixels in the area that will be considered by the Optimiser
The contribution of each considered cost category (and its components) to the starting, best, current and generated optimisation cost (the relevant metric selection/weights and multiplier coefficients are also displayed)
The number of considered optimisation actions on a starting, best, current and generated optimisation plan basis
The examined optimisation states (or iterations) and the respectively generated optimisation cost (the best and current cost values are also displayed)
Tip: To get details of different cost values besides the current ones, ensure that the Log states option is selected. This picture shows an example:
Example of Cost Details
You can also use this information to check the entire optimisation setup after an optimisation has started. For example, you can ensure that the weights and multiplier coefficients are correctly configured and that the optimisation targets are realistic and can be met.
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About the Statistics Details When you are running the Optimiser, you can choose to display the Statistics Details, by clicking the appropriate button. This displays the statistics relevant to the performance metrics for the optimisation, depending on the type of optimisation that you are running. You can view statistics per technology, for traffic and/or area. This picture shows an example:
Example of Statistics Details
About the Optimisation Reports When you are running the Optimiser, you can choose to display the Optimisation Report, by clicking the Report button. This report includes coverage statistics based on the RF Array Thresholds that you set, as defined in the following categories: For this technology
Statistics on the Report tabs
GSM
RSS, CINR, Quality
UMTS
RSCP, Pilot Ec/Io, Quality
CDMA2000
RSCP, Pilot Ec/Io, Quality
EV-DO
RSCP, Pilot Ec/Io, Quality
Fixed WiMAX
DL RSS, DL CINR, Quality
Mobile WiMAX
Preamble RSS, Preamble CINR, Quality
LTE
RSRP, RSRQ, Quality
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You can view these details in terms of overall coverage, per clutter threshold and/or per vector threshold. You can also view action information, and cost information. Tip: If appropriate, you can choose to optimise a delta plan. If you begin a new optimisation, the statistics information for the previous one will be deleted. However, if you continue optimisation from the last generated delta plan, the statistics information for the last optimisation will still be available. The optimisation report provides details of the actions, statistics and costs for the starting plan and each subsequent best plan. This picture shows an example:
Example of Part of an Optimisation Report
Tip: You can produce a similar report (for a specific delta plan) after you have stopped the Optimiser, by selecting the appropriate plan in the Plan Manager section of the Workflow, and clicking the Analysis button. You may be able to choose which customised report format you want to use for this report type. For more information, see Selecting Report Formats on page 96.
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About Alternative Optimisation Scenarios When you have finished running the Optimiser, you can investigate alternative optimisation scenarios, such as:
Modifying the optimisation strategy
Using a different traffic array
Examining different types of actions and/or the impact of limiting the number of actions further
Considering drive test measurements in the pathloss predictions and/or running a drive test route-based optimisation
Using a generated delta plan as the starting configuration
Any combination of the above scenarios
About Applying Plans to the Database When a plan has been optimised, it becomes a delta plan. At any time, you can Apply a plan or a delta plan to the Site Database. This also enables you to analyse the performance of the plan (using arrays and reports) within ASSET. For more information on this, see:
Applying a Plan to the Database on page 35.
Applying a Plan Temporarily to the Database on page 36.
Analysing and Evaluating Plans The analysis functionality in ASSET ACP enables you to analyse your network plan against your chosen optimisation strategy, or compare two plans. You can also use the rollout planning functionality to assess and sequence the potential network changes for a plan. More specifically, it enables you to:
Analyse and evaluate a current plan configuration or an optimised delta plan configuration
Compare any two plan configurations, whether current or optimised
Access the rollout planning functionality, in order to assess and sequence the potential network changes for a delta plan
You can evaluate a single plan, or compare two plans, in terms of their performance (with respect to measurements and optimisation metrics).
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As part of the network evaluation, statistics similar to those available in ASSET can also be generated. The statistics include the coverage and interference metrics (presented per clutter type and/or per vector). In addition, feedback based on the specified optimisation metrics can be provided. The performance achieved for each configuration is presented (in terms of absolute and/or relative values) on a traffic and area basis. The analysis report generated can include:
Actions
Statistics
Costs
You can use the produced reports and/or graphical information to determine how good a plan is, or the number/cost of the required optimisation actions (if applicable). You can also use the Analysis dialog box to access the rollout planning functionality, in order to assess and sequence the potential network changes for a delta plan. For more information, see About Rollout Planning and Partial Plans on page 79.
Information Generated by the Analysis You can use the generated statistics to analyse (or compare) your plan configurations in terms of the following types of information. The report generated can include (as appropriate):
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Actions
Statistics
Costs
Information
Description
Type
Actions
The number of changes that the Optimiser has considered. These are divided into antenna, power, and combined actions.
Antenna - antenna unit, device, pattern (remote and site adjustable electrical downtilt), mechanical downtilt, azimuth, height.
Statistics
The statistics for the metrics used in the optimisation calculations.
Coverage, quality.
Optimisation Costs
All costs relating to the optimisation metrics.
Optimisation metrics as specified above.
Power - GSM PA output power, GSM BTS type, UMTS max TX power, UMTS pilot power, UMTS HSDPA power, UMTS max power per user, All UMTS power settings, UMTS Node type, WiMAX (Fixed and Mobile) TX power, CDMA2000 pilot power, EV-DO Rated PA power.
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Prerequisites for Running an Analysis Before performing an analysis, ensure that you (or your administrator) have:
Set up a project with the necessary planning data, including traffic (if applicable). For more information, see the ENTERPRISE and ASSET User Reference Guides.
Defined the RF Array Thresholds.
Defined the appropriate parameters or options on the Strategy, Traffic and Settings tabs.
Created (or have access to) a plan. For more information, see Using the Plan Manager on page 21.
Created/loaded traffic arrays, if applicable. For traffic-based optimisations, a traffic array must be available.
Performing an Analysis for a Single Plan Using the analysis functionality, you can analyse the performance of a network plan or compare any two plans. Analysing the performance of a single plan enables you to evaluate either a starting (new) plan or a delta (optimised) plan. To analyse a single plan: 1. Ensure that you have performed the required preparation steps, as described in Prerequisites for Running an Analysis on page 75. 2. Within the left-hand pane of the Workflow, select Plan Manager.
3. Select the appropriate plan, and click the Analysis button. 4. In the Analysis dialog box, the selected plan appears as the Base Plan.
(If you want to select a different plan, you can do this by clicking the browse button
.)
5. Select the reporting level you require (Property, Site or Cell). 6. Click Analyse to perform the analysis. When the analysis has finished running, the Report button will become active. 7. To generate the report, click the Report button, then select the format for your report, and click OK. This report is similar to the Optimisation report (available from the Optimiser). The difference is that this report focuses on a specific plan or delta plan.
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Here is an example:
8. When you have finished, in the Analysis dialog box, you can either click Reset to analyse or compare other plans, or you can click Close. You may be able to choose which customised report format you want to use for this report type. For more information, see Selecting Report Formats on page 96.
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Performing an Analysis to Compare Plans Using the analysis functionality, you can evaluate the performance of a network plan or compare any two plans. Comparing the performance of two plans enables you to assess one against the other, and evaluate any differences or improvements. You can analyse and compare the performance between any two plans according to your needs, whether they are plans or delta plans. You can also compare any two delta plans, even if they originated from different starting plans. To compare any two plans: 1. Ensure that you have performed the required preparation steps, as described in Prerequisites for Running an Analysis on page 75. 2. Within the left-hand pane of the Workflow, select Plan Manager.
3. Select one of the two plans you want to compare, and click the Analysis button. 4. In the Analysis dialog box, the selected plan appears as the Base Plan. (If you want to select a different plan, you can do this by clicking the browse button 5. In the Analysis dialog box, for the Compare Plan, click the browse the other required plan.
.)
button, and select
6. Select the reporting level you require (Property, Site or Cell). 7. If required, click the Compare Options button if you want to set default values for comparing array pixels where one has a server and one does not. 8. Click Analyse to perform the comparison analysis. When the analysis has finished running, the Report button will become active. 9. To generate the reports, click the Report button, then select the format for your reports, and click OK. 10. When you have finished, in the Analysis dialog box, you can either click Reset to analyse or compare other plans, or you can click Close. You can also view the comparison analysis results in the Map View window. For information on how to do this, see Displaying Plan Comparison Results in the Map View on page 78.
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Displaying Plan Comparison Results in the Map View After you have performed an analysis to compare two plans, you can display your results in the Map View window. To do this: 1. Ensure that you have a Map View window showing the considered network configuration(s). If not, you can select the region(s) for the plans using the Plans heading in the Data Types list:
2. On the Map View toolbar, click the Map Information Control button Data Types tab.
and then click the
3. To display plan comparison results (which show the coverage/interference arrays for the chosen plans), expand the Delta Plan Analysis heading, and then expand the required plan (or the 'Diff' category).
4. From the list that appears, select the array type that you want to view and click Redraw to view the related analysis results:
5. To define how the array is displayed, double-click the required array and edit the display properties in the dialog box that appears. You can set the following display options: o
Which layers are displayed
o
The colour used for the level of improvement
o
The level of improvement you want to display
6. Click OK and then click OK and Redraw.
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This picture shows an example of plan comparison analysis information displayed on the Map View window. The values show the improvement between Plan 1 and Plan 2 for the Nth Pilot Server.
About Rollout Planning and Partial Plans The Rollout Planning functionality provides a very useful way of determining the order in which to make changes to a network. You can sequence the changes (grouped by cell, site or Property) according to any user-selected metric value (such as coverage or quality), and then assess the potential cumulative improvement in the chosen metric (or any other chosen metric) as the changes are implemented one by one. In basic terms, this functionality asks the question: Which is the best (user-subjective) sequence to perform the potential network changes, and how many of those changes are really needed to achieve the required benefits? The Rollout Planning functionality can be used for delta plans, and is particularly relevant to labourintensive changes requiring site visits, such as antenna azimuth or height changes. For example, you might have a plan that proposes antenna changes on 30 sites. After the initial analysis, the ranking functionality enables you to sequence the changes and evaluate their progressive or cumulative effect. You could then choose a modified sequence for the deployment of those changes. Then, after running a new analysis and report, you could re-evaluate the changes, and specify a new sequence. When you are finally satisfied, you may decide that the changes on only 15 of those sites are worth deploying, and create a partial plan. The Rollout Planning functionality is accessible from the Analysis dialog box. The Analysis dialog box, in its normal usage, provides the ability to analyse your network configurations based on any user-selected metric, and then generate analysis reports that contain single columns per metric. However, the added benefit of the Rollout Planning functionality is that it enables you to sort, reanalyse and produce a cumulative report with multiple columns per metric.
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In summary, after performing an analysis, you can use this functionality to: 1. Set the ranking level to Property, Site or Cell. 2. Re-sequence the rows of potential network element changes according to any of their analysed metric values. 3. Re-analyse. 4. Choose a reporting level. 5. Produce a cumulative report based on your chosen sequence. In addition, if required, you can create a partial plan. Partial Plans From your original plan, you can create a "Partial Plan", which is a plan that will consider making changes only for the elements that you choose. The benefit is that, having re-sequenced the potential changes, you can decide which ones are really beneficial (based on the chosen metric) to the improvement of your network.
Using the Rollout Planning Dialog Box When you are using the Analysis dialog box, you can use the Rollout Planning functionality in order to assess and sequence the potential network changes for a delta plan. You can also choose to create a partial plan. To do this: 1. Run the Analysis in the normal way. 2. Wait until the analysis has finished running. 3. Click the Rollout Planning button. The Rollout Planning dialog box appears, as in this example:
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You can: o
List the elements by their Ranking level: Property, Site or Cell
o
Show the columns for Absolute Values and/or Additional Improvement in the dialog box (this has no impact on the report, which always includes both types of information).
o
Sort the rows by clicking on any of the column headings
o
Promote or demote any elements by selectively highlighting the row(s) and using the Up/Down arrow buttons
4. To generate a fresh analysis of your changes (taking the new sequence into account), click Analyse. When the analysis has finished running, the Report button will become active. 5. Select the reporting level you require. 6. Click the Report button, then select the format for your report, and click OK. This report enables you to view and assess the cumulative statistics (relating to the chosen metrics) for each cell, site or Property. Here is an example of a report, after ranking the above results by coverage:
(For clarity, the above example report has been simplified; rows have been removed.) In this example, the 'partial plan' values in the columns (when read left to right) illustrate how the overall coverage value increases as each additional site/node in the sequence is considered for inclusion in the plan. Obviously, at the same time as the summed value increases, the individual coverage value for each site/node tends to diminish. Note: A separate report will be generated for each of the metrics that you specified when setting up the analysis. For example, if you selected Coverage and Quality, two separate reports would be presented.
7. In the Rollout Planning dialog box, if you want to change the element sequence and reanalyse, you can now click the Reset button.
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Creating a Partial Plan In the Rollout Planning dialog box, when you have finished re-sequencing the potential changes, you can optionally create a 'partial plan'. This means that you can decide which changes are really beneficial (based on the chosen metric) to the improvement of your network, and create a new reduced plan. If appropriate to your requirements, you can then Apply (or Temp Apply) the partial plan to the database, or use it in an optimisation. To do this: 1. Check that you have finished re-sequencing and analysing your changes in the Rollout Planning dialog box. 2. Decide which items you want to include in the partial plan (sequence 1 to n). 3. Click on the row that relates to Sequence n (that is, the lowest ranked item in your proposed partial plan). 4. In the example shown here, clicking the row relating to Sequence 6 would create a plan that includes the items in the top six rows (1 to 6 inclusive):
5. Click the Partial Plan button. A new partial plan is automatically created, and listed in the Workflow dialog box, under the plan from which it was created. Here is an example:
Example of Partial Plan appearing in Workflow dialog box
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About Action-Constraints The purpose of action-constraints in ASSET ACP is to allow certain network parameter changes to be considered in a network optimisation, but at the same time impose meaningful limitations and restrictions on those changes, to accurately represent the real-world environment. An example of an 'action' may be that you want to allow the antenna azimuths of a group of cells to be changed, but, at the same time, you might want to specify a 'constraint' for one of those cells, which could be a forbidden azimuth range because of a nearby school. Important: The ASSET ACP tool focuses on automatic optimisation of plans, and the ActionConstraints dialog box plays a crucial part in this process. This section focuses on the ActionConstraints within the Site Database. For more detailed information about the plan-specific ActionConstraints dialog box within the Optimiser Workflow, it is important that you read the section Setting Action-Constraints for Plans on page 38.
Methods of Configuring Action-Constraints In ASSET ACP, there are two separate 'sources' of action-constraints:
Action-constraints that you can set up and edit within the ACP Workflow
Action-constraints that you can set for specific network elements directly within the Site Database
In both cases, these action-constraints can be configured on an object-by-object basis, or to groups of objects through the use of filters. There is nothing you can set up in the Site Database that you cannot also set up in the Action-Constraints dialog box. Important: Action-constraints that are set in the Site Database are always auto-populated into the Action-Constraints dialog box when you create a plan. You then have the freedom to modify those action-constraints at that stage, if required. When you run an optimisation, the Optimiser reads the action-constraints exclusively from the Action-Constraints dialog box, regardless of their original 'source'. When you run an optimisation, there are two planning mechanisms you can use:
Antenna
Power
ASSET ACP provides the flexibility to run optimisations based on any single mechanism, or both of them. For example, this flexibility enables you to: 1. Set specific action-constraints in the Site Database. 2. Edit these action-constraints (if required) and set up further action-constraints (if required) in the Action-Constraints dialog box. - or Set up action-constraints exclusively in the Action-Constraints dialog box. 3. Select one or both of the planning mechanisms, according to your optimisation strategy. Note: The action-constraints of any plans which already have delta plans are always in Read-Only format. 83
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For more detailed information about the action-constraints within the ACP Workflow, see About the Action-Constraints Dialog Box on page 39 and Using the Action-Constraints Dialog Box on page 41.
About the Action-Constraints Available This section describes the various action-constraints that can be specified in ASSET ACP. They are summarised in this table, listed against the specific network elements to which they relate. Note: Although these action-constraints are described here specifically in terms of setting them in the Site Database, the concept of the action-constraints is the same if you set them within the ACP Workflow. If you are setting them within the ACP Workflow, you should also refer to About the Action-Constraints Dialog Box on page 39.
Network Element
Constraints
Equipment
Mast, BTS Type
Property
Antenna
GSM Site
Installation
GSM Cell
Antenna
GSM Subcell
Power
UMTS Node
Antenna, Resource
UMTS Cell
Power, Power Control
CDMA2000/EV-DO Site
Antenna
WiMAX Node
Antenna
WiMAX Cell
Power
LTE Node
Antenna
LTE Cell
Power
You can also edit a number of constraints in the Site Database simultaneously, as described in Configuring Constraints in the Site Database Global Editor on page 94.
Configuring Equipment Constraints You can specify constraints for masts and BTS equipment, so that the constraints are used when these objects are assigned to a network element in the Site Database. Masts can be used to constrain the antenna heights of Properties (all technologies). BTS types can be used to constrain the output power of GSM subcells. Masts To configure equipment-specific constraints for masts: 1. From the Equipment menu, select Masts. 2. In the dialog box that appears, select the mast that you want to constrain. 3. Click the Dimensions tab, and:
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o
Specify the structure height
o
Select the required mount option - if you select Rooftop, the building height of the Property will be added to the mast height to give the antenna height
Using ASSET ACP
4. Click the Constraints tab, and specify the mast heights that you want to make available:
o
In the Available Masts Height pane, type a height value and click Add
o
To change a value, select it and enter a new value in the box and click Update
o
To remove a value, select it and click Remove
5. Click Apply to save the changes, and Commit if appropriate. BTS Types To configure equipment-specific constraints for BTS types: 1. From the Equipment menu, select BTS Equipment. 2. In the dialog box that appears, select the BTS type that you want to constrain. 3. Click the Parameters tab, and in the PA Output Power pane, select a cell layer and specify the minimum and maximum PA Output power values that the BTS can provide. This picture shows an example:
4. Click Apply to save the changes, and Commit if appropriate. Note: These constraints are only used if these equipment types are assigned to the relevant network elements in the Site Database. For example, masts are assigned to Properties (all technologies), and BTS equipment types are assigned to GSM sites.
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Configuring Physical Antenna Constraints on the Property Property antenna constraints relating to the physical attributes (antenna location, device, height, mechanical tilt, azimuth) of an antenna are related to the antenna optimisation, and enable you to restrict the available options that can be used to optimise the antennas located on the Property. To configure Property Physical Antenna Constraints: 1. From the Database menu, click Sites. 2. Select a Property, and click the Physical Antennas tab. This picture shows an example:
3. Ensure that you select the appropriate antenna from the list (if there is more than one). 4. Use the scroll bar to scroll to the right, to reveal the antenna constraints (Height Fixed, Azimuth Fixed, and so on). This picture shows an example:
5. You can activate the following constraints per antenna, if you want to prevent such changes during optimisation: o
Height Fixed
o
Azimuth Fixed
o
Device Fixed
o
Mechanical Downtilt Fixed So, for example, selecting 'Device Fixed' means that the Optimiser will not consider changes to the device for that antenna.
6. You can, if required, define a Forbidden Azimuth Range for the cell's antenna. This enables you to define an orientation range which the automatic optimisation cannot consider for azimuth changes. To set the range, specify a clockwise bearing (the start azimuth for the forbidden range) and an anti-clockwise bearing (the end azimuth for the forbidden range). (For a fuller description of these settings, see About the Forbidden Azimuth Range on page 47.)
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7. You can activate and set the following constraints per antenna, if you want to enable such changes during optimisation: o
Mechanical Downtilt - Min
o
Mechanical Downtilt - Max
o
Mechanical Downtilt - Step So, for example, setting any values for this means that the Optimiser will consider changes to the mechanical tilt, within the defined range, for that antenna.
Note: Valid Total Downtilt values must also be set on the Antenna Constraints tab for the cell (GSM), or the node (all other technologies). 8. Click Apply to save the changes, and Commit if appropriate.
Configuring Property Antenna Constraints Property antenna constraints are related to the antenna optimisation, and enable you to restrict the available options that can be used to optimise the antennas located on the Property. To configure Property Antenna Constraints: 1. From the Database menu, click Sites. 2. Select a Property, and click the Antenna Constraints tab. This picture shows an example:
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3. In the Antenna Height Rules pane, enter the minimum and maximum height values that you wish to use as a basis for the antenna constraints defined on this tab. To manually define a series of allowable antenna height values within the minimummaximum range: o
Select the Manual option, and then select the Constrain checkbox.
o
In the value box above the Add button, type the first value in metres.
o
Click Add.
o
Add further values as required - to delete a value, select it and click Remove. To edit a value, select it, change the value and then click Update.
To define a series of allowable antenna height values within the minimum-maximum range based on the mast associated with the Property (which is defined on the General tab of a Property in the Site Database): o
Select the Mast option, and then select the Constrain checkbox.
o
The constraint values that you have defined for this mast appear. For more information on this, see Configuring Equipment Constraints on page 84.
To define a series of allowable antenna height values within the minimum-maximum range based on a particular step size: o
Select the Step option, and then type a value in metres for the step.
o
Select the Constrain checkbox.
o
A series of allowable antenna height values appears, starting with the defined minimum height, then moving upwards in steps (according to the size you defined) to the defined maximum height.
For example, the allowable height values for a minimum height of 20m and a maximum of 30m with a step size of 2m would be 20, 22, 24, 26, 28, and 30m. 4. In the Height Variation pane, you can determine whether the heights for individual antennas may differ at a specific Property (this option is cell layer-specific for GSM). To do this, select the Allowed checkbox. Note: If this is not selected, all antennas on the same cell layer (GSM) or on all carriers (UMTS) at this Property must be at the same height. However, GSM cells for different cell layers, or cells of different technologies (for example, GSM and UMTS) can still have antennas with heights different from each other. 5. In the Antennas at Same Height pane, you can specify a minimum azimuth difference. This is the minimum separation (in degrees) that you are willing to accept between antennas of the same height on this Property. To do this, select the Constrain checkbox and type a value. 6. In the Antenna Co-location pane, select the Enable Co-location checkbox if you want to enable antenna devices to be able to share co-location parameters (identical location coordinates, height and azimuth, and on the same Property). Important: If Antenna Co-location is not enabled for a Property, no antenna sharing or colocation configuration can be accepted as a valid starting configuration or examined as a potential optimisation solution by the Optimiser. For more information, see How the Optimiser Considers Shared Antennas on page 57. 7. Click Apply to save the changes, and Commit if appropriate.
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Configuring GSM Site Installation Constraints GSM site installation constraints can be set to restrict the options that can be used during GSM cell power optimisation. To configure GSM site installation constraints: 1. From the Database menu, click Sites. 2. Select a GSM site, and click on the Installation tab. 3. In the ACP Constraint pane, select the Fix Site Equipment checkbox if you want the specified BTS equipment type to stay unchanged during a GSM power optimisation.
4. Click Apply to save the changes, and Commit if appropriate.
Configuring GSM Cell Antenna Constraints Antenna constraints are related to the antenna optimisation, and enable you to restrict the available options that can be used to optimise the antennas associated with a cell. GSM cell antenna constraints are configured per antenna, in contrast to the constraints that can be configured per Property, which relate to all antennas on the Property. See Configuring Property Antenna Constraints on page 87. Property antenna constraints relating to the physical attributes (antenna location, device, height, mechanical tilt, azimuth) of individual antennas can be configured on the Property. See Configuring Physical Antenna Constraints on the Property on page 86. To configure GSM cell antenna constraints: 1. From the Database menu, click Sites. 2. Select a cell, and click the Antenna Constraints tab. 3. Ensure that you select the appropriate antenna by selecting the required antenna number from the Antenna Configuration pane:
These numbers correspond to the antennas listed on the Antennas tab. The constraints are always antenna-specific. 89
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4. In the Misc Constraints pane, you can activate the following constraint per antenna, if you want to prevent such changes during optimisation: o
Antenna Pattern Fixed Selecting this means that the Optimiser will not consider changes to the antenna pattern for that antenna.
You can also activate and set the following constraints per antenna, if you want to enable such changes during optimisation: o
Total Downtilt - Min; Max
o
Electrical Downtilt - Min; Max; Step So, for example, setting values for 'Electrical Downtilt' means that the Optimiser will consider changes to the electrical tilt, within the defined range, for that antenna (valid Total Downtilt values must also be set).
5. Click Apply to save the changes, and Commit if appropriate.
Configuring GSM Subcell Power Constraints GSM subcell antenna/TRX constraints can be set to fix the PA output during the GSM cell power optimisation. To configure GSM subcell antenna/TRX constraints: 1. From the Database menu, click Sites. 2. Select a GSM subcell, and click the Antenna/TRX tab. 3. In the ACP Constraint pane, select the Fixed PA Output checkbox if you want to prevent changes to the PA output by the Optimiser during optimisation.
4. Click Apply to save the changes, and Commit if appropriate.
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Configuring Antenna Constraints for UMTS, CDMA/EV-DO, WiMAX or LTE Antenna constraints are related to the antenna optimisation, and enable you to restrict the available options that can be used to optimise the antennas associated with a node. Antenna constraints are configured per antenna, in contrast to the constraints that can be configured per Property, which relate to all antennas on the Property (described in Configuring Property Antenna Constraints on page 87). Property antenna constraints relating to the physical attributes (antenna location, device, height, mechanical tilt, azimuth) of individual antennas can be configured on the Property. See Configuring Physical Antenna Constraints on the Property on page 86. To configure antenna constraints: 1. From the Database menu, click Sites. 2. Select a node and click the Antenna Constraints tab. 3. Ensure that you select the appropriate antenna by selecting the required antenna number from the Antenna Configuration pane:
(These numbers correspond to the antennas listed on the Antennas tab. The constraints are always antenna-specific.) 4. In the Misc Constraints pane, you can activate the following constraint per antenna, if you want to prevent such changes during optimisation: o
Antenna Pattern Fixed Selecting this means that the Optimiser will not consider changes to the antenna pattern for that antenna.
You can also activate and set the following constraints per antenna, if you want to enable such changes during optimisation: o
Total Downtilt - Min; Max
o
Electrical Downtilt - Min; Max; Step So, for example, setting values for 'Electrical Downtilt' means that the Optimiser will consider changes to the electrical tilt, within the defined range, for that antenna (valid Total Downtilt values must also be set).
5. Click Apply to save the changes, and Commit if appropriate.
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Configuring UMTS Node Resource Constraints Node constraints can be set to restrict the node to a particular node type during a power optimisation. To configure node resource constraints: 1. From the Database menu, click Sites. 2. Select a node and click the Resource tab. 3. In the ACP Constraint pane, select the Fix Node Type checkbox if you want the specified Node type to stay unchanged during a power optimisation.
4. Click Apply to save the changes, and Commit if appropriate.
Configuring UMTS Cell Power Constraints UMTS cell power constraints can be set to restrict the power settings that can be used to optimise the cell. Selection of any of these constraints will prevent the relevant power from being changed during an optimisation. To configure UMTS cell parameter constraints: 1. From the Database menu, click Sites. 2. Select a UMTS cell, and click the Cell Params tab. 3. In the UMTS Parameters pane: Set this parameter to TRUE
If you want to prevent changes to this power
Fixed Max TX Power
Maximum (total) TX power
Fixed UMTS Channel Power
The power that is dedicated to the Pilot, Control, Synchronisation and Indicator channels
Fixed HSDPA Power
HSDPA power
4. Click Apply to save the changes, and Commit if appropriate.
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Configuring UMTS Cell Power Control Constraints UMTS cell power control constraints can be set to restrict the maximum downlink power per connection that can be used to optimise the UMTS cell. To do this: 1. From the Site Database, click Sites. 2. Select a UMTS cell, and click the Load&Power Ctrl tab. 3. In the TX Power Limits pane, under ACP Constraint, select the Fixed checkbox.
4. Click Apply to save the changes, and Commit if appropriate.
Configuring WiMAX Cell Power Constraints WiMAX cell constraints can be set to restrict the power settings that can be used to optimise the cell. Selection of this constraint will prevent the relevant power from being changed during an optimisation. Note: These constraints are applicable to both Fixed WiMAX and Mobile WiMAX. To configure WiMAX cell power constraints: 1. From the Database menu, click Sites. 2. Select a cell, and click the WiMAX Params tab. 3. In the ACP Constraints pane, select the Fix TX Power checkbox. 4. Click Apply to save the changes, and Commit if appropriate.
Configuring LTE Cell Power Constraints LTE cell constraints can be set to restrict the power settings that can be used to optimise the cell. Selection of this constraint will prevent the relevant power from being changed during an optimisation. To configure LTE cell power constraints: 1. From the Database menu, click Sites. 2. Select an LTE cell, and click the LTE Params tab. 3. In the ACP Constraints pane, select the Fix TX Power checkbox. 4. Click Apply to save the changes, and Commit if appropriate.
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Configuring Constraints in the Site Database Global Editor Changing information for a large number of Properties, sites and cells can be a very lengthy process when performed manually. To avoid this, you can use the Global Editor to define constraints for objects identified by a filter. Note: The Global Editor is used on a per filter basis - you cannot specify a different filter for different tabs. To use the Global Editor: 1. From the Database menu, click Sites. 2. In the Site Database window, click Global Edit. 3. Select the appropriate filter. 4. Select the items that you want to change for the network elements in this filter. For a list of the ASSET ACP-specific constraints, see ASSET ACP-specific Constraints in the Global Editor on page 95. Here is an example of the constraints in the Global Editor:
Important: Where a parameter has two checkboxes, ensure you select both if you want to set the relevant constraint. However, if you want to disable (previously set) constraints, you can select the first checkbox, and deselect the second checkbox. In simple terms, the first checkbox determines whether the change is to be made, and the second checkbox determines what is to be changed. For example:
To set the constraint
To unset the constraint (if previously set)
5. Click Apply to save the changes, and Commit if appropriate.
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ASSET ACP-specific Constraints in the Global Editor This table describes the ASSET ACP-specific constraints: On this tab
You can set these constraints
Properties
Forbidden Azimuth Range Antenna Device Fixed Mechanical Downtilt Fixed Azimuth Fixed Height Fixed Mechanical Downtilt - Min; Max; Step
Cell Constraints
Antenna Pattern Fixed Electrical Downtilt - Min; Max; Step Total Downtilt - Min; Max
Property Constraints
Antennas:
Allow Co-location
Allow Height Variation
Same Height Min Azimuth Diff
Antenna Height Rules:
Manual, Mast or Step Height
Min Height
Max Height
Installation (GSM)
Fixed Site/BTS Equipment
Cell Layer (GSM)
Fixed PA Output
Node Config (UMTS)
Fixed Node Type
Cell Params (UMTS)
Fixed Max TX Power Fixed UMTS Channels Power Fixed HSDPA Power
Load & Power Ctrl (UMTS)
Fixed Max DL Power per Connection
WiMAX Cell Params
Fixed TX Power
LTE Cell Params
Fixed TX Power
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Selecting Report Formats ASSET ACP enables an organisation to configure its own presentation styles for the following reports:
Analysis report
Optimiser report
Rollout Planning report
Financial Analysis report
Financial Analysis (Difference Method) report
Note: The last two report types depend on a Financial Analysis licence. This can be done using report formats that can be configured and managed by your administrator. For information on this, see the ENTERPRISE Installation and Administration Guide. If such formats have been configured, an individual user can determine the 'mapping' of the required report format to each ASSET ACP report type. Important: A default set of formats already exists in any new project. These formats are already mapped to each report type, so if you are satisfied with the default reports, you do not need to do anything.
If you need to view or modify the mapping relationships, you can use the ACP & Financial Analysis Reports Assignment dialog box. To open this dialog box: From the Reports menu, click ACP & Financial Analysis Reports Assignment. The ACP & Financial Analysis Reports Assignment dialog box appears:
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To change the mapping relationship for a report type: 1. For the appropriate report type, click in the Report Name column. 2. In the drop-down list, select the required report name (this is only meaningful if multiple formats have been made available for the report type). 3. Repeat the steps if you want to modify any other mapping relationships. 4. Click Close. The reports will automatically be output in the chosen format when they are next generated. You can check the basic details of the currently mapped report formats by selecting the report type and clicking the Info button.
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Index
Index O A Action-Constraints about • 83 antenna planning • 41, 55 dialog box • 39, 41 power planning • 41, 58 setting • 83 templates • 53 ADVANTAGE workflow • 9 Analysing and evaluating plans • 73 Analysis for a single plan • 75 network improvement • 77 network performance • 75 to compare plans • 77 Antennas sharing • 57 Auto Plan Setup, using • 27 Azimuths, forbidden ranges • 47, 86
C Clutter/Vector parameters • 12 Constraints about • 83 Action-Constraints dialog box • 42 BTS equipment and mast • 84 GSM cell antenna • 89 GSM site installation • 89 GSM subcell antenna/TRX • 90 in Site Database • 83 metric degradation • 16 Property antenna • 87 UMTS cell load and power ctrl • 93 UMTS cell params • 92 UMTS node antenna • 91 UMTS node resource • 92 Context menu for plans • 30
D Delta Plans • 21
Optimisation Action-Constraints templates • 53 antenna • 41, 55 parameters • 9 power planning • 58 prerequisites • 65 reports • 67, 71 running the optimiser • 67 starting the optimiser • 66 strategy • 16 thresholds • 12 Optimiser Workflow using • 9
P Partial plans • 79 Plan Manager, using • 21 Plans concept • 21 creating • 23 Traffic Options • 18 using the Plan Manager • 21 viewing and using • 22
R RF Thresholds • 12 Rollout planning • 79
S Sampling, for clutter • 12 Shared antennas about • 57 how considered • 57 Statistics graphs • 69 reports • 69, 71
T Thresholds setting • 12
F Forbidden Azimuth ranges • 47, 86
G Global Editor setting constraints in site database • 94
N Network Improvement Analysis • 77 Network Performance Analysis • 75
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