analyzer training umtstech v1 a print copy

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February 2008

UMTS Technology Training Course

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The content of this manual is provided for information only, is subject to change without notice, and should not be construed as a commitment by Actix. Actix assumes no responsibility or liability for any errors or inaccuracies that appear in this documentation.

Copyright © Actix 2008. All rights reserved. All trademarks are hereby acknowledged.

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Contents

1 CONFIGURING CELL SITES ............................................................................. 5

1.1 IMPORTING NETWORK DATA ................................................................................. 5 1.1.1 Obtaining Site Data in tabular format ........................................................ 5 1.1.2 Guidelines for formatting tabular data ....................................................... 7 1.1.3 Obtaining the file to be populated with formatted data ................................ 7 1.1.4 Importing the data ................................................................................. 8

1.2 UPDATING CELL SITE DATA ................................................................................ 13 1.2.1 Automatic import of Cell Site Data .......................................................... 13

2 CONFIGURING ANALYZER ............................................................................ 15

2.1 SETTING THE TOOLBAR SIZE ............................................................................... 15 2.2 MAP SCALE AND COORDINATES ........................................................................... 15 2.3 LOADING CELL SITE DATA ................................................................................. 15 2.4 DISPLAYING SITE LABELS .................................................................................. 16

3 EXPLORING THE WORKSPACE ........................................................................ 18

3.1 LOADING DATA FILES ....................................................................................... 18 3.1.1 Examining UMTS Handset Data .............................................................. 18 3.1.2 Examining technology-independent data ................................................. 21 3.1.3 Examining UMTS scanner data ............................................................... 21

3.2 THE FAVORITES GROUP ..................................................................................... 23 3.2.1 Sharing favorites .................................................................................. 24

4 VIEWING DATA ......................................................................................... 25

4.1.1 Modifying legend ranges ........................................................................ 25 4.1.2 More range display options .................................................................... 26 4.1.3 The Map Offset tool .............................................................................. 26 4.1.4 Adding annotations to a map ................................................................. 27 4.1.5 Formatting data labels on a map ............................................................ 28 4.1.6 The Drive Test Direction button .............................................................. 28

4.2 VIEWING DATA ON CHARTS ................................................................................. 29 4.2.1 Modifying chart properties ..................................................................... 30

4.3 VIEWING DATA IN TABLES .................................................................................. 31 4.4 VIEWING DATA IN THE MESSAGE BROWSER ............................................................. 32 4.5 VIEWING DATA IN THE PROTOCOL STACK BROWSER ................................................... 34 4.6 VIEWING DATA IN WORKBOOKS ........................................................................... 35 4.7 VIEWING DATA IN STATE FORMS .......................................................................... 36

4.7.1 Using preconfigured StateForms ............................................................. 36 4.7.2 Viewing custom forms with the StateForms Editor .................................... 40 4.7.3 Modifying an existing StateForms file ...................................................... 40 4.7.4 Creating your own StateForms file .......................................................... 42

5 REPORTING UMTS NETWORK PERFORMANCE ..................................................... 45

5.1 APPLICATION PACKAGES .................................................................................... 45 5.1.1 Running Application Packs ..................................................................... 46 5.1.2 UMTS Drive Test Summary .................................................................... 47 5.1.3 UMTS CPICH Level Analysis ................................................................... 47 5.1.4 UMTS Call Statistics .............................................................................. 48

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5.1.5 UMTS Call Setup Analysis ...................................................................... 48 5.1.6 UMTS Handoff Analysis ......................................................................... 48 5.1.7 UMTS Quality Analysis .......................................................................... 48 5.1.8 Running a Pre-Defined Report ................................................................ 49

5.2 CUSTOM REPORTS ........................................................................................... 51 5.2.1 Creating a custom report ....................................................................... 51 5.2.2 Running your report with new data ......................................................... 52 5.2.3 Modifying a custom report ..................................................................... 53

6 PERFORMING CUSTOM ANALYSIS .................................................................... 57

6.1 ABOUT QUERIES ............................................................................................. 57 6.2 FILTER ANALYSIS ............................................................................................ 57

6.2.1 Working with pre-configured Filters ........................................................ 58 6.2.2 Creating a custom filter ......................................................................... 58 6.2.3 Additional custom filters ........................................................................ 60

6.3 BINNED QUERY ANALYSIS .................................................................................. 62 6.3.1 ServingCellDistance in Miles .................................................................. 62 6.3.2 Scanner Pilot Pollution Query ................................................................. 63 6.3.3 Additional Binned Queries ...................................................................... 65

6.4 HISTOGRAM AND STATISTIC QUERY ANALYSIS .......................................................... 69 6.4.1 ServingCellDistance in Miles Statistic Query ............................................. 69 6.4.2 ServingCellDistance in Miles Histogram query .......................................... 70

6.5 CROSSTAB QUERY ANALYSIS .............................................................................. 73 6.5.1 Sort by Site and Sector Crosstab Query .................................................. 73 6.5.2 Display the Crosstab query results .......................................................... 75 6.5.3 Filter the Crosstab query results ............................................................. 75 6.5.4 Additional Crosstab queries ................................................................... 76

6.6 EVENT QUERY ANALYSIS ................................................................................... 78 6.6.1 Displaying Event Queries ....................................................................... 82 6.6.2 Additional Event Queries ....................................................................... 82

7 SCANNER-BASED NETWORK ROLLOUT ANALYSES ................................................ 85

7.1 NEIGHBOR LIST ANALYSIS ................................................................................. 85 7.2 CPICH POLLUTION ANALYSIS ............................................................................. 87 7.3 HANDOFF ANALYSIS ......................................................................................... 90 7.4 SIMULATED ACTIVE SET .................................................................................... 93

8 PRINTING MAPS ....................................................................................... 95

8.1 QUICK PRINT ................................................................................................. 95 8.2 PRINT USING MAP LAYOUT DESIGNER .................................................................... 95 8.3 COPY TO CLIPBOARD ........................................................................................ 96 8.4 EXPORT MAP TO A DIFFERENT FILE FORMAT .............................................................. 96 8.5 EXPORT INDIVIDUAL MAP LAYERS TO MAPINFO .......................................................... 96

9 APPENDIX A – UMTS EVENT DEFINITIONS ....................................................... 97

9.1 EVENT DATA – CALL EVENTS .............................................................................. 97 9.2 EVENT DATA – RRC EVENTS ............................................................................ 100 9.3 EVENT DATA – RAB EVENTS ............................................................................ 101 9.4 EVENT DATA – COVERAGE EVENTS ..................................................................... 101 9.5 EVENT DATA – HANDOFF EVENTS ....................................................................... 103

Actix UMTS Technology Training Course February 2008 Configuring Cell Sites 5

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1 Configuring Cell Sites

Before you can begin analyzing data, there are several system settings to configure. To provide your logfiles with geographical reference points, you will need to load some

MapInfo maps and point the software to a valid, applicable cell site database, also known as a “cellrefs” file.

Analyzer‟s Network Explorer allows you to import network element data, creating a cell plan file called cellrefs.txt. It also lets you browse and edit this network information once it

has been loaded. The Automatic Import feature provides an automated method of updating cell site information as changes are made to the network.

This section describes how to import delimited data, and how to configure the Automatic

Import tool.

1.1 Importing Network Data The important thing to remember about the network data import process is that the process requires two files:

A delimited text file that contains unformatted data arranged in tabular form, with one row for each individual sector in a network.

A blank file, containing only Actix header information, to be populated with

formatted data.

1.1.1 Obtaining Site Data in tabular format

In order to import cell site data from your own network, you will need to obtain a delimited text file containing the data listed in the table below. To maximize the benefit your Actix Software can bring to UMTS network analysis, the parameters listed in bold in the table on the following page are REQUIRED for cell data to function with logged data in the main workspace. All other parameters are optional.

The data may come from a network database or a planning tool configuration file. As long as the data is in a tabular format with one row for each sector, you will be able to import the data.

UMTS Cell Site Parameters for Import:

Parameter Actix Group Actix Name Purpose

Site Name WCDMA_Site SiteName Text description of the site for display on map.

Site Number

WCDMA_Site SiteID Numeric identifier for the site.

Latitude WCDMA_Site Latitude Locates site icons on map.

Longitude WCDMA_Site Longitude Locates site icons on map.

Sector Number

WCDMA_Cell Sector ID Sector-specific information useful for display on maps (can be alpha or numeric)

Actix Analyzer UMTS Technology Training Course February 2008 Configuring Cell Sites 6

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Parameter Actix Group Actix Name Purpose

Azimuth WCDMA_Cell Azimuth Orients the sector icons on the map.

Beamwidth WCDMA_Cell Beamwidth Governs the shape of the sector ‘wedge’ icon to reflect the beamwidth of antenna deployed at the site.

Scrambling Code

WCDMA_Cell SC Used for cell site identification and to calculate lines to cells.

EIRP WCDMA_Cell EIRP Equivalent Isotropic Radiated Power – for informational purposes only

Mobile Country Code

WCDMA_Cell MCC Mobile Country Code – for informational purposes only

Mobile Network Code

WCDMA_Cell MNC National Domain Code – for informational purposes only

Location Area Code

WCDMA_Cell LAC Location Area Code – for informational purposes only

Cell Identity WCDMA_Cell WCDMA_CI Cell Identity – for informational purposes only

BSIC WCDMA_Cell BSIC Legacy parameter – unused

Neighbor List

WCDMA_Cell WCDMANeighborList Used to define a pre-defined neighbor list for each cell. Used during neighbor list recommendations analysis.


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The figure below is an example of a delimited UMTS file that could be used to import a site list. Though the columns can be in any order for import, the figure shows all of the REQUIRED fields. Additionally, the Excel spreadsheet must be saved as a TEXT file for import.

Figure 1 - UMTS Cell Site Data Spreadsheet

1.1.2 Guidelines for formatting tabular data

Although cell-site data fields do not need to be listed in a particular order, following these guidelines will provide the best results:

1 The Site ID field must contain a unique value for each site location. Beware of non-unique Site IDs - that is, entries that have multiple sets of latitudes and longitudes

for the same Site ID. Non-unique Site IDs will result in site markers appearing on the map without sector wedges. Site Names need not be unique - they are used for labeling purposes only.

2 Position information must be accurate to display sites in the correct location on the map. Longitudes that have a 'West' notation should be represented as a negative decimal, as should latitudes with a 'South' notation. Sites will appear skewed on the map if the latitude and longitude fields are transposed.

1.1.3 Obtaining the file to be populated with formatted data

Before importing new cells, ensure that your Actix Software is pointing to a valid cell site database.

A valid cell site database is a text file in which the first line contains the text

below:

; #NetworkData – datafile


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Every installation comes with a clean file called cellrefs.txt located in the folder:

C:\Documents and Settings\All Users\Application Data\Actix\Analyzer\Bin\Cellrefs

The file to be populated need not be named “cellrefs.txt”. We recommend renaming this file with a meaningful name in order to prevent the file from being overwritten during reinstallation.

To point your Actix Software to the file that you wish to populate with the new cell site data, use the File Location line in the Tools Preferences dialog. See the section on

Loading Cell Site Data for more details.

1.1.4 Importing the data

Once you have obtained your cell site database in delimited format and have referenced a valid cellrefs file, you are ready to open the Network Explorer and import the site

information.

1 To access the Network Explorer, select Tools Network Explorer.

Figure 2- Network Explorer Window

The Network Explorer display consists of two panels. The left panel contains a tree

view of the network element data. The right panel shows details about relevant parameters for the current selection. If you have referenced a cellrefs file containing only header information, you will not see any cell site data at this time.

2 From the toolbar, select Import Import From New Template to open the

Import dialog.

3 Select the appropriate network data file and click Open to display the Import Settings dialog.


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Figure 3- Import Settings Dialog (Step 1 of 2)

4 Give the Template a meaningful Template Name.

5 Check the appropriate Delimiter.

6 In most cases, the default information under the General Settings and Coordinate Information headers will apply. Adjust these settings if necessary.

7 Click Next.


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Figure 4 - Settings (Step 2 of 2) – Assign WCDMA_Site Data

8 Expand the WCDMA_Site data node. Click in the Column field next to the Site_Name parameter. Select the parameter name from your site database that corresponds to the Site_Name parameter. Repeat for each of the required fields in the WCDMA_Site data node, based on the table below:

Field Mapping required for proper operation?

Site_Name Optional, but this field is frequently used for the site label.

SiteID Required, and this field must be unique for each site in the database.

Latitude Required

Longitude Required


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Figure 5 - Column Settings (Step 2 of 2) – Assign WCDMA_Cell Data

9 Expand the WCDMA_Cell data node. Click in the Column field next to the Sector_ID parameter. Select the parameter name from your site database that corresponds to the Sector_ID parameter. Repeat for each of the required fields in

the WCDMA_Cell data node, based on the table below:

Field Required for proper operation?

Sector_ID Required

Azimuth Required

Beamwidth Required

EIRP Optional

SC Required

MCC Optional

MNC Optional


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Field Required for proper operation?

LAC Optional

WCDMA_CI Optional

BSIC Unused

WCDMANeighborList Optional

10 Click Finish when all the columns have been assigned. If the current workspace contains existing site data, you will be asked whether you want to remove existing data before importing new data. Select Yes to overwrite existing data. Select No to append to existing data.

11 If any errors occur during the import, a pop-up message will indicate that an error log has been created. The error log specifies the cause of each error encountered and can be found in:

C:\Documents and Settings\All Users\Application Data\Actix\Analyzer\Bin\Cellrefs\ImportErrors.log

12 Inspect the cell data in the Network Explorer by expanding the All_WCDMA_Site_Elements folder in the left-hand pane of the Network Explorer.

13 Double-click on any site name in the right hand pane. The Name, Location and ID

of the site will appear, as well as a folder containing WCDMA Cell Elements. Drill into the WCDMA Cell Elements folder and examine the values corresponding to each sector.

14 To save the formatted site information, select the Save button.

15 Close the Network Explorer by clicking the “X” in the top right hand corner.

16 After closing the Network Explorer, view a new map by selecting View Display

New Map.


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Figure 6 - Use Zoom to Layer to Locate Cells on Map

17 If cell icons do not appear on the map, right click on the WCDMA_Cell layer in the map legend at the left hand side of the map window. Select Zoom to Layer to zoom the map to the appropriate location. Be sure to close the map with the “X” at

the upper right hand corner to save all changes to the map view.

1.2 Updating Cell Site Data There are two convenient ways to update cell plan information:

Minor cell plan changes (a few azimuths, SCs, etc.) can be modified directly from the Network Explorer. Simply browse to find the site and sector of interest

and double click on a single parameter to activate the text. Be sure to save the modifications before exiting the Network Explorer!

If the cellplan file is updated (multiple sites added, complete frequency retune), use the Automatic Import feature to detect changes to an existing cell plan and import the updated cell site file. Instructions for using the Automatic Import

feature follow.

1.2.1 Automatic import of Cell Site Data

The Automatic Import feature detects changes to cell plan data and updates the configured site data every time you open your Actix Software.

To use the Automatic Import feature

1 From the main menu, select Tools → Preferences.

2 Expand the Automatic Import option under Cellrefs and select the Enable Automatic Import option.


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3 Select the Automatic Import Input File. This text file contains your delimited site data.

4 Select the Automatic Import Template. Once a template has been created, a new workspace must be started in order for that template to appear in this list. To

use a template created on another computer, copy the template of interest from this folder:

C:\Documents and Settings\All Users\Application Data\Actix\Analyzer\Bin\Cellrefs\Templates

to the same directory on your machine.

5 Click OK to exit the Change Preferences dialog. A message will appear that

Automatic Import has been enabled and that your currently loaded cellrefs will

be overwritten the next time you restart your Actix Software.

Figure 7 - Automatic Import Setup

Once Automatic Import is configured, any changes to the Automatic Import Input File will be detected, and will be changed accordingly in your cell site file each time you start your Actix Software.

Actix Analyzer UMTS Technology Training Course February 2008 Configuring Analyzer 15

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2 Configuring Analyzer

2.1 Setting the toolbar size 1 Select Tools Preferences.

2 Scroll down to the General Settings section and ensure that the Use Small Toolbars box is empty. This will ensure that, to make them easier to identify, all buttons will also have their names underneath them.

When you become more comfortable with the interface, you can switch Small Toolbars

back on to increase your available screen space.

2.2 Map Scale and Coordinates By default, the map scale will appear in the lower left corner of the map window. In addition, the latitude and longitude coordinates of the cursor can be displayed.

To turn on or off the scale, right-click on the map area and click to check or uncheck Show Scale.

To show or hide the cursor coordinates, right-click on the map area and click to check or uncheck Show Lat/Long.

2.3 Loading Cell Site Data In order to display cell sites and integrate cell site data with real-time measurements, a formatted cell site database must exist. This file contains location and configuration data for each cell site. In Actix Software, this file is the „Cellrefs‟ file, although in practice this file can have any name.

Later in the course, we will show you how to format your own data for recognition by Actix Software. For now, we will point the software to a pre-formatted cellrefs file, and then display the sites on the map.

1 From the main menu, select Tools Preferences.

2 In the Change Preferences dialog, on the File Location line, double-click on the name of the current cellrefs file.

3 In the Open dialog, navigate to the cellrefs file you would like to use and select

Open. In class the file we will use is called ‘Training UMTS Cellrefs.txt’ which

has been installed in the following location:

C:\Documents and Settings\All Users\Application Data\Actix\Analyzer\Bin\Cellrefs

4 Click OK to close the Preferences dialog.

5 A message box will be displayed saying that the new Cellrefs file takes effect when a new workspace is loaded. Click OK to close the message box. The cell information is loaded when the software starts up or on starting a new workspace. From the Main Menu, choose File New Workspace to create a new workspace.

At this point, there is no need to save the current workspace.

6 In the new workspace, click View Display New Map. By default, the cell sites

are now visible.


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2.4 Displaying Site Labels By default, site labels and cell labels will be displayed on the map. You can leave the labels as they are, modify the way they are displayed, or turn them off entirely. The site labels are displayed independently of cell labels. This allows you to display of Site Name or Site ID in addition to or instead of SC, Azimuth, or Beamwidth.

In Actix Software, “sectors” are called “cells” based on the European GSM standards

terminology.

The following instructions specify first site labeling, then cell labeling:

1 In the Layer Control dialog box, select the site layer (named WCDMA_Site-Site_Name)

2 Under the Properties heading in the Layer Control dialog, press the Labels button.

3 The MapInfo-style Label Properties box will appear. Verify that each of the

following boxes is checked:

Show

Allow overlapped text (recommended)

Hide adjacent duplicate text (optional)

4 In the Label Properties box, use the drop down Data Field menu to determine the label format to display. Currently, there are two formats of labels from which to choose:

The Site Name (default) shows only the site name.

The Key Field label shows only the site ID.

5 If you wish to offset the label from the cell site symbol, use the options in the Position box in the Label Properties dialog.

6 If you wish to change the font of the labels, use the Label Style button in the Properties dialog.

7 Select OK to exit the Label Properties dialog.

The Site Labels have now been formatted.

Next, format the Cell Labels:

8 In the Layer Control dialog box, select the cell layer (named WCDMA_Cell-Beamwidth-SC)

9 Under the Properties heading in the Layer Control dialog, press the Labels button

10 The MapInfo-style Label Properties box will appear. Verify that each of the following boxes is checked:

Show

Allow overlapped text (recommended)

Hide adjacent duplicate text (optional)

11 In the Label Properties box, use the drop down Data Field menu to determine the label format to display. All WCDMA_Cell parameters are available as options for

labeling. SC is a popular labeling option, as it allows you to quickly identify each sector.

12 If you wish to offset the label from the cell site symbol, use the options in the Position box in the Label Properties dialog.


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13 If you wish to change the font of the labels, use the Label Style button in the Properties dialog.

14 Click OK in the Label Properties dialog, and then OK in the Layers dialog to apply the labels.

Figure 8 - Labeled Sites and Sectors in a map window

Actix Analyzer UMTS Technology Training Course February 2008 Exploring the Workspace 18

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3 Exploring the Workspace

3.1 Loading Data Files Now that you are more familiar with the working environment, we will move on to opening logfiles and examining the type of information available from these files.

Load the following drive test files by selecting File Open Logfile or by clicking the

Open Logfile icon: . These files are located in the folder:

C:\Documents and Settings\All Users\Application Data\Actix\Analyzer\DataFiles

UMTS Voice 1.dt1

UMTS Data 1.SD5

Agilent Scanner 1.mdb

A „+‟ sign will appear next to the Loaded Data Files folder in the Attribute Explorer once files have been loaded. Click on the „+‟ to expand the folder and view the loaded files.

Notice that all of the files were loaded into this workspace. Data files from any supported collection equipment can be opened and displayed in the same workspace.

3.1.1 Examining UMTS Handset Data

1 Expand the UMTS Voice 1 file tree in the Attribute Explorer.

2 Expand the layers under the handset data stream labeled Nemo3GPP (0), then expand the UMTS node and examine each data group and parameter, as shown the figure below.

Figure 9 - Expanded handset stream showing radio groups and parameters


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Upon loading a UMTS handset file, note that several data groups are created. These data groups are common to all UMTS handset files, regardless of data collection vendor. Each group will appear as long as at least one parameter within that group was collected by the device.

The following data groups are created under the UMTS node:

Downlink Measurements – This group contains Uu interface measurements reported by the mobile.

Pilot Measurements – This group contains signal strength measurements for individual SCs detected within the logfile.

Dedicated Radio Link – Once a call has been established, parameters that are associated with the SCs serving the call, such as Handoff State, are contained here.

Uu_RRC – Radio Resource Control is the protocol layer governing air interface

communication within the UMTS network. Parameters associated with protocol messaging can be found in this group.

Event Data – Call events triggered by the current state of the UMTS mobile. If an event is not present in the tree, it did not occur in the file. This group also contains events with user-definable thresholds, such as Uu_PilotPollution and Uu_CoverageLimited. The thresholds for these events can be modified under the Tools → Thresholds menu.

Statistics Data – This group contains statistics calculated based on UMTS protocol messaging, including Call Duration and timing components of Call Setup Time.

Vendor Specific – This group contains parameters unique to a specific type of data collection equipment.

Rake Finger Measurements (Qualcomm chipset handsets only) - Provides individual finger measurements, including multipath measurements for the same SC.

Additional parameters are available for UMTS files containing wireless data activity:

3 Expand the UMTS Data 1 file tree in the Attribute Explorer.

4 Expand the layers under the Samsung 3GPP (3) stream, and notice how the UMTS radio network metrics are organized the same way as in the UMTS Voice 1

file.

5 Expand the layers under the Data (2) and expand the Data Testing node. Examine each group and parameter, as shown the figure below.


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Figure 10 - Expanded handset stream showing Data Testing node

The Data Testing node in a UMTS handset stream provides data parameters that are not specific to a single wireless technology.

Under the Data Testing node, the following groups may be found:

Application Measurements – Find the instantaneous application layer throughput here.

This value most closely approximates to the end user‟s experience.

Protocol Measurements – This group contains throughput values for each layer in the IP stack. This group contains statistics for the IP, PPP, TCP, ICMP and RLP2 layers.

IP (Internet Protocol) provides a connectionless addressing scheme of packets, or datagrams, to be delivered in a packet-switched data network.

TCP (Transmission Control Protocol) establishes a virtual connection between a source

and a destination in a data network.

PPP (Point to Point Protocol) serves primarily to provide some security to datagrams in the IP network.

ICMP (Internet Control Message Protocol) supports error, control and informational messages within the data network.

RLP2 information is provided in some drive-test formats to represent the physical connection between the mobile and the test system.

Task Settings – This group contains task identifiers including Task_Id and Task_Name.

Task Summary – This group contains application level parameters summarizing the entire task.

Ping Statistics – This group contains metrics for any ping session within the logfile.

Application Statistics – This group contains the number of bytes transmitted by the data application.

Connection – This group contains details for data connections activated within the logfile.


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HTTP Statistics – This group contains metrics for any HTTP session within the logfile.

3.1.2 Examining technology-independent data

Under the UMTS Voice 1 → Nemo3GPP (0) handset stream, expand the Independent

folder to look at technology-independent parameters that have been decoded. In addition to GPS measurements, device-specific data, and internal Actix messages, find the following groups here:

GPS Data – This group contains mobile longitude, latitude, distance traveled, and speed.

Message Info – The date and time for the start of the data stream can be found in this group. This information is useful when building report templates.

Site Data Node – If a cell site database is being used, the software will automatically calculate these measurements that take both the drive and the cell site information into account. Some of the measurements contained here are:

ServingCellDistance–distance, in meters, to the serving sector

NeighborCellDistance–distance, in meters, to non-primary serving sectors

File Info – In this node find label and timestamp information for the logfile under

investigation.

Vendor Specific – Vendor-specific measurements may be grouped here, or under the UMTS node. In either case, this group provides measurements specific to the particular collection device used.

Device Info – This group contains settings for the mobile device on which data is logged.

3.1.3 Examining UMTS scanner data

Due to the nature of the coding scheme in a UMTS system, scanner data is an invaluable tool for detecting problems in the network. Because SCs are reused across a UMTS network with a much lower frequency than in an FDMA/TDMA network, each SC scan can be directly linked to a particular site or sector in the network.

The Agilent Scanner 1.mdb file already opened in the workspace contains SC scanner data

in the E6455C (IMT2000 Receiver)-E6455C (IMT2000 Receiver) 2132.600MHz (1) stream.


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Expand the scanner stream to reveal the contents:

Figure 11 – UMTS scanner stream expanded to show its contents

Note that under the UMTS data group, several groups have been created to help you easily drill down into the

data. For each scanner stream, the following nodes are available:

Other – This group contains scanner measurements concerning RSSI, Chip Offset, Carrier Error and the Scan Code Group.

Nth Best – This node contains ranked measurements for EcNo, RSCP, SC and PathLoss. Within each group, the “0” element contains the best performing data. For example, CPICH_Scan_EcIo_SortedBy_EcNo_0 gives the strongest EcNo of all SCs scanned.

Ec/Io – This group contains the interference-to-chip-energy measurements organized by various dimensions.

RSCP – This group contains the Received Signal Code Power organized by various dimensions.

Delay – Find the CPICH Scan Delay Spread for each SC in this group.

Pilot Measurements – Find the CPICH PathLoss for each SC in this group.

Active Set – This group contains simulated Active Set measurements based on scanner data and the user-defined WCDMA settings in the Tools → Preferences dialog.

Monitored Set – This group contains simulated Monitored Set measurements based on scanner data and the user-defined WCDMA settings in the Tools → Preferences dialog.


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Event Data – Events in this group are based on the simulated Active Set and Monitored Set SCs based on scanner data and user defined thresholds set under WCDMA in the Tools → Preferences dialog.

3.2 The Favorites group You may find that having access to all of the parameters within a logfile in the Attribute

Explorer is not necessary and that it makes finding the key parameters more difficult. You can identify a subset of parameters that you need to access, and place them in the Favorites Group. This group can be viewed by clicking on the Favorites tab in the Attribute Explorer.

Try setting the following favorites for UMTS radio parameters based on the UMTS Voice 1

data file:

1 In the Attribute Explorer, click to select the UMTS Downlink Measurements

UTRA_UE_CarrierRssi parameter, then right-click on it and choose Add to

Favorites from the pop-up menu. Also add the UE_TxPow parameter to Favorites.

2 Under Dedicated Radio Link, find Uu_UE_HandoffState and add it to Favorites.

3 Under the Event Data Call group, find Uu_CallDropped and

Uu_OutgoingCallSetupFail and add them to Favorites.

4 Under the Event Data Coverage group, find Uu_PilotPollution and

Uu_CoverageLimited and add them to Favorites.

5 In the Attribute Explorer, click on the Favorites tab. A tree view of the items you added is displayed. You can easily move between All and Favorites as necessary.

The parameters that you define as Favorites will be available on the Favorites tab for any data file open in the workspace that contains those parameters, as well as for any new files opened that contain the specified parameters.

Figure 12 – Attribute Explorer showing the Favorites parameters displayed

6 To remove a parameter from your favorites, select the parameter. Right-click on the parameter and choose Remove Favorite.


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3.2.1 Sharing favorites

Favorites can be shared among users. Favorites are saved in the favorites.dat file located in the folder:

C:\Documents and Settings\All Users\Application Data\Actix\Analyzer\Bin\XMLFiles

To share Favorites with another user, copy the favorites.dat file to the same directory on the desired machine. The user of that machine will then have access to those favorites each time your Actix Software is launched.

Actix Analyzer UMTS Technology Training Course February 2008 Viewing data 25

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4 Viewing data

Data can be viewed in a variety of ways to facilitate easy analysis. You can plot parameters on maps, and display them on charts, tables, and in workbooks.

4.1.1 Modifying legend ranges

From the handset stream of the UMTS Voice 1 file, display the UMTS → Downlink Measurements → Uu_ActiveSet_EcNo parameter on a map and try the following:

1 In the legend, right-click on Uu_ActiveSet_EcNo and select Modify Ranges to change the ranges displayed.

Figure 13 - Modify Ranges dialog box

2 Remove any unwanted ranges by highlighting the range and selecting Remove. Note that ranges must be removed one at a time, and the last two ranges cannot be removed.

3 Enter the maximum and minimum value for each range and click Update to modify an existing range, or Add to add a new range. Use the Below and Above

buttons to specify “edge” ranges. The recommended approach to modifying legend ranges is to start with the minimum value ranges and work your way toward the maximum.

4 Within the Modify Ranges dialog, you can change the color assigned to each of your new ranges. With the range highlighted, click on the Selected Button in the

Set Colors section. To set all of the ranges to default colors, click on the Default button in the Set Colors section.


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5 Press Close to close the Modify Ranges dialog and return to the workspace. All range and color settings are automatically saved with the Modify Ranges dialog is closed.

Note: Use the Cancel button to back out of any changes

you do not want to keep.

4.1.2 More range display options

Right-click on the stream in the legend for more legend options:

Select Attribute Style to change the color, size and shape of the data trail. These

parameters affect all data points for this parameter, regardless of value.

Style Setting lets you decide whether to indicate a parameter‟s value range changes by color, size, or shape.

The Set Legend To menu item allows you to maintain multiple legend

configurations for a single parameter. The default legend settings will always be used upon entering a new workspace. To maximize the utility of this feature, give each legend configuration for a parameter a unique name and set the preferred configuration to be the default.

The Copy Legend to Clipboard and Export to File options let you create an image of the legend for use in other Windows programs.

Change the style of an individual range without re-entering the Modify Ranges dialog by right clicking on the range and selecting Selected Range’s Style.

Changes to legend settings are automatically saved in XML files, one for each parameter. The files are saved in the folder:

C:\Documents and Settings\All Users\Application Data\Actix\Analyzer\Bin\FormatGroups\UserSettings

After legends have been modified and saved as desired on one computer, you can transfer these files to the same location on another computer to share legend settings between users.

4.1.3 The Map Offset tool

Offsetting of a data trail on the map may be achieved by manually offsetting the data on

the map, or by specifying a numeric distance to offset the trail in the x and y directions.

To use the Offset Tool to offset a trail

1 View UTRA_UE_CarrierRssi on the map in addition to Uu_ActiveSet_EcNo_0 by dragging UTRA_UE_CarrierRssi onto the existing map.

2 In the Map Layers dialog, highlight the layer you wish to offset and then select Offset Offset Tool.

3 Move the Offset Tool cursor to determine how much to offset the trails. Click the mouse once to accept the modified position.

4 To remove the offset, select the offset layer in the Map Layers dialog, select Offset, and click on Reset.

5 If you wish to specify a specific offset distance, type the distance in the X and Y text boxes in the Offset Layers dialog. Type 0 for both the X and Y offset to return the offset trail to its original position. The distance units for offset are based


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on the setting found by right-clicking on the map and selecting Map Units

Distance.

Figure 14 - RSSI and EcNo_0 on the Same Map

4.1.4 Adding annotations to a map

Annotations are a means of adding text and simple shapes to your map. You can use these

to indicate trouble spots or point out features of interest in your network.

1 From the map window, click on the Layers button to show the Layer Control dialog.

2 Select the Annotations layer and use the Reorder Up button to move it to

the top.

3 Close the Layer Control dialog.

4 Select the Annotations button from the map toolbar. The annotations

toolbar appears on the map. Clicking the Annotations button again will hide the toolbar.

5 Click the Text button . The cursor will change to insert text mode.

6 Click on the map to place the text and add the desired text.

7 Return the cursor to the passive mode by clicking the Select button.

8 To edit the text, select the text using the Edit Text button .

9 Change the style or font by selecting the text with the Select tool, right clicking and selecting Tool Feature Style.

UTRA_UE_CarrierRssi

Uu_ActiveSet_EcNo_0


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10 To remove text, select the text box using the Select tool and press the delete key.

4.1.5 Formatting data labels on a map

Labels can be displayed for any parameter you display on a map. This can be used to show exact values of any parameter at each point. The UMTS parameter UE_SCs_in_ActiveSetAtASU provides a very useful example of text labeling on the map:

1 From the UMTS → Pilot Measurements group, display the

Uu_Pilot_DownlinkBER parameter on the map.

2 Drag the UE_SCs_in_ActiveSetAtASU parameter onto the same map.

3 From the map window, click on the Layers button to show the Layer Control

dialog.

4 In the Layer Control dialog box, reorder the layers so that the Uu_Pilot_DownlinkBER parameter is beneath UE_SCs_in_ActiveSetAtASU.

5 Highlight the UE_SCs_in_ActiveSetAtASU layer and select the Labels button.

6 Select Show to show the values at each data point.

7 If desired, select Allow overlapped text or Hide adjacent duplicate text.

8 Exit the Label Properties dialog and the Layer Control dialog.

The UE_SCs_in_ActiveSetAtASU parameter contains the labels for each scrambling code in the active set at each active set update. Labeling this parameter, while displaying other measurements on the map, provides insight into the handoff implementation in the UMTS network.

4.1.6 The Drive Test Direction button

The Direction button on the Map toolbar lets you display directional arrows on any drive-test map. These arrows show the direction of the drive during the collection of the initial data.

Figure 15: Map with Directional Arrows displayed

Direction button

Direction

arrow


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4.2 Viewing data on charts You can create a variety of charts for the analysis and inspection of data. There are two ways to view data on charts:

To view any parameter on a new chart

Right-click on the parameter of interest in the Attribute Explorer and select Display on Chart.

To view a parameter on a chart already open in the workspace

Click and drag the parameter of interest onto a chart already open in the workspace.

To demonstrate some of the chart‟s capabilities, we will create a Time Series chart containing wireless data parameters.

1 In the UMTS Data 1 file in the Attribute Explorer, expand Data (2) → Data Testing

→ Application Measurements and select App_Throughput_DL.

2 Right-click on App_Throughput_DL and choose Display on Chart from the pop-up menu. Notice that a chart appears with a throughput value at each data point.

3 Click on the Histogram button to view the data as a distribution. The

ranges that appear are the same ranges that were set for this parameter on the

map legend.

4 Click on the Series button to return the chart to a time series chart.

5 You may wish to examine an area with particularly high or low throughput in

detail. To zoom in on a section of the chart, click and drag a rectangle, moving from upper left to lower right. To return to the previous zoomed view, click and drag a rectangle moving from lower right to upper left.

6 Drag and drop App_Throughput_UL onto the chart.

7 Drag and drop Task_Time_Elapsed onto the chart. Your chart should look like the figure below.


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Figure 16 – App_Throughput_DL, App_Throughput_UL and Task_Time_Elapsed on a chart

Note that throughput and task time are measured in different units, so they appear on separate axes.

8 Drag and drop the Event_Task_Start and Event_Task_End events (from the Event Data group) onto this chart. The events will appear on the chart as vertical lines.

A Task defines a single user-defined process, which operates over a well-defined period of time (that is, it has a start and a stop), such as an FTP file download, a PING command, or a web page download. In the case of drive tests, all of the vendors have a series of pre-

defined tasks and some allow users to define custom tasks of their own.

4.2.1 Modifying chart properties

1 Many chart properties can be customized through the Properties dialog. Right-click on the chart and choose Chart Properties from the menu.

2 Reposition the Properties Dialog so that you can see the chart with the dialog

open. As you change the properties of the chart, the chart is automatically updated.

3 On the Chart Series page, click the Title button to change the title of one of the series.

4 Still on the Chart Series page, use the up and down arrows to change the order in which the parameters are plotted. This also affects their position in the legend.

5 On the Chart Axis page, redefine the style for the axis, labels, and ticks.

6 On the Chart Legend page, modify the fonts and colors.


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7 Create a three-dimensional chart using the options on the Chart 3D page.

8 Click Close to close the Properties dialog when you are satisfied with the formatting you have done.

9 Click on the Copy icon to place a copy of your chart on the clipboard.

10 In Word or PowerPoint, click Edit Paste to paste your chart into that

application.

11 With the chart still open, create a map displaying the same data. Make sure that the Select tool is activated on the map. Click to select data on either the map or the chart and notice that the views are synchronized.

4.3 Viewing data in tables Tables provide a quick view of numeric data for a selected parameter. You can look at statistics, such as mean, minimum, and maximum, histogram distribution information, or the time series data for the parameter displayed on a spreadsheet. Tables can be synchronized with maps to provide an integrated view of network data. A trouble area that is identified quickly on a map using visual inspection can then be examined more closely

on a table by looking at exact numerical values of key parameters.

There are two ways to view data on tables:

To view any parameter on a new table

Right-click on the parameter of interest in the Attribute Explorer and select Display on Table.

To view a parameter on a table already open in the workspace

Click and drag the parameter of interest onto a table already open in the workspace.

To demonstrate the functionality of tables in network optimization applications, we will create a new table containing some parameters related to wireless data network analysis.

1 Display App_Throughput_DL from the Data (2) stream of UMTS Data 1 on a table. To do this, select Data (2) → Data Testing → App_Throughput_DL, then right-click

and select Display on Table.


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Figure 17– App_Throughput_DL displayed on a Table

2 Drag App_Throughput_UL onto the same table to view the values side-by-side.

3 Click on the Histogram tab and notice the ranges and counts. The histogram ranges correspond to the map legend ranges set for the last parameter displayed on the table. Use the drop-down list at the bottom to switch between histogram

values for the different parameters.

4 Click on the Statistics tab and notice the automatically calculated statistics for all parameters displayed on the table.

5 Click on the Series tab to return to that view. Then drag the Task_App_Bytes_DL and Task_App_Bytes_UL parameters onto the same table.

6 Display Task_App_Bytes_DL and Task_App_Bytes_UL on a new chart in the

workspace.

7 Tile the table and the chart in the workspace by selecting Window Tile

Horizontally from the main menu.

8 With the table and chart visible in the workspace, select any point on the chart. Notice that the table synchronizes to the same point, and that the throughput and

round trip time values are now visible. In this case, correlating the parameters using multiple views provides insight into the amount of data downloaded during the application for which instantaneous throughput values are available.

9 Open another UMTS data file in the current workspace. Use the stream selection

box to look at new handset data in the same table configuration without having to repeat the work you did to set up the original table.

4.4 Viewing data in the Message Browser The Message Browser allows you to analyze the messaging reported by the logging device. The Message Browser also includes events derived from the Layer 3 messaging and searching and filtering operations on the data. The Message Browser can play an integral part in a problem-area investigation when it is used in conjunction with the map and table.

1 To open the Message Browser, right-click on the handset stream under the UMTS Voice 1 file and choose Display Message Browser from the pop-up menu.

Stream Selection Box

Histogram tab parameter selector


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Figure 18 - Messaging Displayed in the Message Browser

2 Click on an event in the Event Panel. Watch as the Messaging Window synchronizes to display the messaging information corresponding to the event you selected. This allows a quick view of the specific messaging associated with a particular event.

3 The search function can be used to locate a particular parameter in the messaging,

even if the message name is unknown. In the Search box, type

‘ActiveSetUpdateComplete’, then click the Find Next button to find the next occurrence of this text string in the file. Continue the search by clicking the Find Next icon to find each subsequent occurrence of the string. The Active Set

Update Complete message signifies a change to the active set. The Soft Handover message immediately following the Active Set Complete message indicates which SCs have been added to or removed from the Active Set during the procedure.

4 Right-click on the message area and choose Properties from the pop-up menu. In the Properties dialog, click on the Message Format tab and click the Change button modify the font for the Message Browser.

5 On the Message Filtering tab of the Properties dialog, uncheck All Message Types and check UMTS RRC Messages to show only messaging associated with the UMTS Radio Resource Control layer. The message filtering capability is useful when investigating specific events, and only those messages associated with those

events are of interest.

6 Select a section of text in the Message Browser and click on Copy icon. Open Microsoft Word and click Edit Paste to paste the text into the current

document.


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4.5 Viewing data in the Protocol Stack Browser The Protocol Stack Browser allows the user to browse quickly through messages by examining the header only. Once a message of interest is identified in the top pane of the Protocol Stack Browser, the details of the message can be examined in the bottom pane. The following Protocol Stack Browser view is available for UMTS drive test data:

UMTS Radio Interface – The message pane displays Radio Resource Control (RRC) messaging, RRC message cause values, and Layer 3 messaging. RRC

messaging represents communication between the mobile and Node B, while Layer 3 messaging represents communication between the mobile and 3G MSC.

Other UMTS views include:

UMTS Radio Interface and Protocol Signaling

UMTS Signaling and IP Messaging

UMTS UTRAN Protocol Signaling

UMTS networks are backwards compatible with and can hand off to GSM networks. Drive test files that contain UMTS and GSM / GPRS data will also have the following Protocol Stack Browser views available:

GSM Layer 3 – Message pane displays GSM Layer 3 messages / message direction.

GSM Layer 3 Signaling – Message pane displays GSM Layer 3 messages only.

GPRS Events – Message pane displays messages signifying GPRS events.

GPRS RLC / MAC – Message pane displays GSM Layer 3, and GPRS RLC and MAC messages.

Figure 19 – UMTS Radio Interface view for the Protocol Stack Browser


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4.6 Viewing data in workbooks In some cases, tables may not provide enough flexibility for viewing data. The workbook feature provides a more flexible method for detailed analysis of trouble areas. This format allows data to be searched, sorted, filtered, formatted, and printed through Microsoft Excel.

There are two ways to view data on workbooks:

To view any parameter on a new workbook

Right-click on the parameter of interest in the Attribute Explorer and select Display on Workbook.

To view a parameter on a workbook that has already been opened

Right-click on the parameter of interest in the Attribute Explorer and select Display on Workbook (active).

View the Uu_UE_HandoffState parameter from the UMTS Voice 1 handset stream on a workbook:

1 Select Dedicated Radio Link Uu_UE_HandoffState, then right-click and select

Display on Workbook.

Notice the series data is displayed in Excel with time, latitude, and longitude.

Figure 20– Uu_UE_HandoffState displayed in a workbook

2 Click on the Histogram tab and notice the ranges and counts.

3 Click on the Statistics tab and notice the automatically calculated statistics.

4 Close the workbook without saving changes.

If you save the workbook in the Workbooks folder of the User Data Area, it will appear under the Workbook menu in any subsequent new workspace.


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4.7 Viewing data in State Forms Actix State Forms allow you to view multiple performance metrics simultaneously. Used in conjunction with the Replay tool, maps, tables, and charts, you can quickly ascertain the values of several optimization parameters for problem identification.

4.7.1 Using preconfigured StateForms

A number of preconfigured UMTS StateForms enable the user to quickly identify and troubleshoot important network events.

View the UMTS UE Active+Monitored Set form for the UMTS Voice 1 sample file:

1 Right-click on the stream name Nemo 3GPP (0) in the Attribute Explorer and choose Display Form → UMTS UE Active+Monitored Set. Forms can also be

selected from the View → Forms option on the main menu.

Figure 21 – UMTS UE Active+Monitored Set Form

2 In general, when selecting a form, make sure that the form that you have selected

applies to the type of data you want to analyze. For example, do not select the

UMTS Data form for a logfile containing voice calls.

3 If the Stream Selector is not visible, right-click on the form and select Stream Selector. The Stream Selector drop-down will appear. Use the drop-down list to select the stream that you wish to view. If you are not seeing information in the forms, verify that the right data stream is selected.


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Figure 22 - Select UMTS Active+Monitored Set form


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4 Forms with measurement views such as the UMTS Active+Monitored Set Form or the UMTS Data Session Form are best viewed when docked with the Replay Tool at the side of the screen, as seen in the figure below.

Figure 23 – UMTS Active+Monitored Set Form docked in the workspace

To dock a form on the left side of the workspace, bring up the form and click the docking

button (to the left of the minimize button) . Click the gray horizontal line at the top of

the form, drag it over to the bottom section of the Attribute Explorer, and release. Once docked like in the view above, you can adjust the top and right-hand borders to allow for more viewing space in the platform.


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Forms with chart views like the UMTS Voice Event Navigator or the UMTS Data Event Navigator may be best viewed when docked at the bottom of the screen as shown below.

Figure 24 – UMTS Voice Event Navigator Form Docked in Workspace

To dock a form at the bottom of the workspace, bring up the form and use the docking

button (to the left of the minimize button) to dock it next to the Attribute Explorer.

Then, making sure that the right border of the form does not stretch past the midpoint of the entire workspace, drag the thin gray line of the form to the bottom right side of the screen so that it is completely on the left half of the viewing platform. Once docked like in the view above, you can adjust the top border to allow for more viewing space in the

platform.

Preconfigured forms can be edited to meet your individual analysis needs. The following sections describe the modification of existing forms, and the creation of new forms from scratch using the State Forms Editor.


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4.7.2 Viewing custom forms with the StateForms Editor

The StateForms Editor allows you to view custom forms, modify existing forms, and build new forms from scratch. The components of the StateForms Editor window are shown in the figure below.

Figure 25 - The StateForms Editor

1 From the Tools menu, select StateForms Editor.

2 Position your mouse cursor over the empty StateForms Editor box that is launched, right-click and select “Open File”. Browse to the C:\Documents and Settings\All Users\Application Data\Actix\Analyzer\Stateforms directory and open the file called UMTS Handset.axl.

3 Once loaded, make sure a stream is selected in the StateForms stream selection box. The selected stream must correspond to data currently displayed on another data view (map, chart, table or Message Browser).

If the stream selection box is not visible, right-click on the state form box and select Stream Selector. The stream selection box will appear.

4 Select any point on a map, chart, or table and notice that the contents of the form

will update to reflect the state of the network at the point you selected.

5 Verify that the stream selector in the StateForms window is showing the same stream with which you are trying to synch.

4.7.3 Modifying an existing StateForms file

You can use an existing StateForms file as it is, or you can make modifications to it. Suppose the UMTS Handset file has almost everything you would like to see, but that you are also interested in the handoff state. To add handoff state to the StateForms display:

1 If the StateForms file is not already displayed, click Tools Display

StateForms. Click Open File and choose the UMTS Handset file.

2 Click on the Toggle Design Mode button on the StateForms tool bar, or right-click and select Design Mode.

Stream selection box

StateForms toolbar

Parameter

value

Parameter value


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The StateForms window now shows the design view:

Figure 26 - StateForms Window in Design Mode

The buttons on the StateForms tool bar are, from left to right, Delete, Cut, Copy, Paste, Toggle Design Mode, Select, Label, Attribute Value, Array Attribute Value, Time Chart, Scan Chart and Group Box.

Delete – Removes an object from the form. Using the delete key on your keyboard will not work.

Cut – Removes an object from the form and puts it on the clipboard.

Copy – To copy an object to the clipboard, select it and click the Copy button.

Paste – Use this button to insert a copied object onto the form.

Toggle Design Mode – To exit the Design Mode and return to the View mode, click the Toggle Design Mode button.

Select – To put the cursor into select mode to allow you to select an object on the form.

Label – Click and drag a rectangle, then type your text into the Caption field in the

attribute window.

Attribute Value – Click and drag a rectangle then choose an attribute from the list. The value of that attribute will be displayed in the rectangle you defined.

Array Attribute Value – Click and drag to define a table. In the attribute window, specify the number of rows and columns your table will have.

Time Chart – Click and drag to define the area for a time series chart for the form. Use the chart control in the Attribute Window to add data ranges and otherwise edit the Time

Chart.

Scan Chart – Click and drag to define the area for a scanner chart for the form. Use the chart control in the Attribute Window to add data ranges and otherwise edit the Scan Chart.

Group Box – Used to clarify which attributes on your form belong together, click and drag to define a rectangle.

StateForms

toolbar

Attribute window


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4.7.4 Creating your own StateForms file

Several sample state forms are provided by Actix. You can also design your own forms from scratch. You can do this by creating a new StateForms file or by adding a new sheet to a current file. We will create a new file for this example. The finished form will look like this:

Figure 27 - Completed StateForms file

If you do not have the StateForms window open, click Tools Display StateForms.

1 To start a new StateForms file, click the New File button. Alternatively right-click on the form and select New File.

2 To begin adding objects to the StateForms sheet, click the Toggle Design Mode button to open the sheet in Design Mode.

3 Add the UTRA_UE_CarrierRssi label by clicking the Label Button. Click and drag

the rectangle.

4 Select the label object and make these modifications in the Attribute Window:

Caption: UTRA_UE_CarrierRssi

Font Auto Size: False

Font Size: 10

5 Repeat steps 3 and 4 for the BER label, setting the caption to „Uu_Pilot_Downlink_BER‟.

6 To display the value for UTRA_UE_CarrierRssi, click the Attribute Value button then click and drag a rectangle to the right of the CarrierRssi label.

7 Select the UTRA_UE_CarrierRssi Attribute Value object and make the following modifications:

Specify Min+Max: True

Bar Range Min: 0

Bar Range Max: 0

Attribute: UMTS Downlink Measurements

UTRA_UE_CarrierRssi

Show Value Change: True


Font Size: 10


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8 Repeat steps 6 and 7 for the BER Attribute Value, setting the attribute to Uu_Pilot_Downlink_BER (found in the Pilot Measurements group).

9 To create the Attribute Bar for RSSI, click on the Attribute Value button then click and drag a rectangle to the right of the UTRA_UE_CarrierRssi attribute value

object.

10 Select the Carrier RSSI Attribute Bar and make the following modifications in the Attribute Window:


Bar Range Min: -110

Bar Range Max: -45

Bar Color: Turquoise

Attribute: UMTS Downlink Measurements

UTRA_UE_CarrierRssi

Show Value Text: False

Show Min Text: True

Show Max Text: True

Show Minor Ticks: True

Show Major Ticks: True


Font Size: 10

11 To create the BER attribute bar, the Attribute Value button, then click and drag a rectangle to the right of the BER attribute value object.

12 Select the BER Attribute Bar object and make the following modifications in the Attribute Window:


Bar Range Min: 0

Bar Range Max: 100

Bar Color: Dark Blue

Attribute: UMTS Pilot Measurements Uu_Pilot_Downlink_BER

Show Value Text: False

Show Min Text: True

Show Max Text: True

Show Minor Ticks: True

Show Major Ticks: True


Font Size: 10

13 To add the Group Box object, click on the Group Box button, then click and drag a rectangle around all of the items on your form.

14 Select the Group Box object and make the following modification in the Attribute

Window:

Caption: Network Parameters

Fore Color: Blue


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Font Size: 12

Default Font: False

Font Bold: True

15 Click the Save As button and save the StateForms file in the State Forms directory and call it UMTS Network Parameters.axl.

16 Return to the View Mode by clicking on the Toggle Design Mode button.

17 Test your new form by displaying a parameter from the UMTS Voice 1 handset stream on a map. Make sure that the handset stream is selected in the StateForms

stream selector box. Click on any point on the map, and see the parameter values for Carrier RSSI and Pilot Downlink BER appear on your StateForm.

Actix Analyzer UMTS Technology Training Course February 2008 Reporting UMTS network performance 45

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5 Reporting UMTS network performance

The reporting features allow you to create high-level management reports based on your data. Two different mechanisms exist for creating for producing integrated, polished

reports that can be used to analyze high-level network statistics or communicate test results in a professional format:

Application Packages are a technology-specific series of reports that are installed automatically with every Actix Software installation. Application Packs are

typically used to obtain a high-level overview of call statistics. They can be used when a professional, formatted output is required, but time constraints do not allow for the creation of a custom template.

Reports are user-definable formatted outputs that make use of integration with Microsoft Excel. Reports may be included with an installation (such as the UMTS Training Materials), but are not always included. Reports, unlike Application Packs, allow for formatted outputs of multiple streams of data. Use Reports when generating outputs for multiple streams of data, and when you want to design a custom formatted template from scratch.

This section describes the use of both reporting mechanisms, including running Application Packs, running pre-defined Reports, and creating custom Reports.

5.1 Application Packages Your Actix Solution will contain Application Packages specific to UMTS. The Application

Packs are a series of reports, each focusing on a particular aspect of mobile network optimization.

The Application Packs currently available for analysis of UMTS handset data are:

UMTS Drive Test Summary

UMTS CPICH Level Analysis

UMTS Call Statistics

UMTS Call Setup Analysis

UMTS Handoff Analysis

UMTS Quality Analysis

An Application Pack is currently available for analysis of UMTS scanner data:

UMTS Accelerated Network Rollout


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5.1.1 Running Application Packs

Note: Application Packs require the Actix Software to be pointing to a valid cellrefs file in order to function properly.

Once a data file is loaded, the Application Packages can be accessed in one of two ways:

Through the Analysis menu on the main menu.

By right-clicking on the stream name in the Attribute Explorer

Once you have selected one of the Application Packs from the menu, an Application Pack

window will appear. The window is divided into two panes. The top panel contains a summary of major call events and statistics for the selected stream, organized by serving site and sector.

The bottom pane contains a list of available reports associated with the selected Application Pack. Double-click on any of the available reports to run the report. Once executed, the results of the reports can be saved, printed, and shown in their raw form in Microsoft Excel.

Figure 28 – UMTS Drive Test Summary Application Pack

Summary by site selection

Available reports


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5.1.2 UMTS Drive Test Summary

This application pack contains the following reports:

File Summary – This report provides information about the drive route, calls made and received, coverage and quality in the logfile.

Coverage Summary – This report summarizes the strongest EcNo and the strongest RSCP in the Active Set, providing statistics and distribution information for each metric.

The Coverage Summary report is shown below:

Figure 29 – UMTS Coverage Summary Report

5.1.3 UMTS CPICH Level Analysis


CPICH b4 RRC Con Req – This report shows CPICH measurements for the active and monitored sets in a five-second window leading up to each RRC connection request in the logfile.

CPICH after Call End or Drop – This report shows CPICH measurements for the active

and monitored sets in a ten-second window following each successfully completed or

dropped call.

CPICH during Call – This report provides mean CPICH performance metrics during each call in the logfile.


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CPICH before Call End or Drop - This report shows CPICH measurements for the active and monitored sets in a five-second window before the end of each call in the logfile.

5.1.4 UMTS Call Statistics


Call Statistics – This report provides call setup and termination statistics, including the access failure rate, dropped call rate, and successful call rate.

Call Sustainability – This report provides call duration statistics and is particularly useful for analyzing the sustainability for long-call testing configurations.

Call Timing Analysis – This report provides time-based statistics for each call recorded in

the logfile. Timing analysis statistics include time between setup messages, average time between measurement reports and Active Set Updates, average time between Active Set Update messages, and call duration.

5.1.5 UMTS Call Setup Analysis


Call Setup Status – This report provides a breakdown of call setup attempts, including successful attempts, failed attempts, and failed attempt causes.

Call Sequence Outcome – This report provides a listing of which call sequence messages have been seen for each call in the logfile.

5.1.6 UMTS Handoff Analysis


Handoff Breakdown Analysis – This report provides handoff state statistics, including actual vs. goal metrics for target percent of drive in soft handoff.

SHO per Event 1a 1b 1c – This report breaks down the number of Active Set Update

additions (Event 1a), removals (Event 1b) and replacements (Event 1c) within the logfile.

5.1.7 UMTS Quality Analysis


Overall BLER – This report provides statistics and distribution information for the block

error rate for the downlink transport channel.

BLER per Call – This report provides block error rate statistics on a per call basis.

Statistics provided include call duration, maximum BLER, minimum BLER and mean BLER.

BLER During SHO – This report provides BLER statistics during soft handover. Statistics are calculated during the period from each RRC Active Set Update message until each Update Complete message.


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Figure 30 - BLER During SHO REPORT

5.1.8 Running a Pre-Defined Report

Since Application Packs are pre-configured, they may not exactly meet your team‟s

reporting requirements. Additionally, App Packs can only be run on a single stream of data. Reports allow you to create custom reports using Microsoft Excel, and those reports may include data from multiple streams. Reports from multiple measurement sources allow you to compare data collected simultaneously or look at your network before and after making a change.

In this section, you will populate a pre-defined report template that contains multiple data streams. In the next section, you will create a custom report from scratch.

To run the pre-defined report

1 From the Analyzer main menu, select Workbook Open Workbook/Report.

2 Navigate to C:\Documents and Settings\All Users\Application Data\Actix\Analyzer\Reports and open the report called UMTS – GPRS Throughput Report.xls.

3 Select a data stream to replace the EGPRS stream; in this case, select the handset stream from EGPRS Drive Test 1.dt1 (in the C:\Documents and Settings\All Users\Application Data\Actix\Analyzer directory) and click OK.

4 Now select a UMTS data stream: select the Data (2) stream from UMTS Data 1.sd5 and click OK.

5 After a few moments, the report will be generated within Microsoft Excel. When this process is complete, click on the Report tab in the Excel workbook and examine the formatted report.


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The output of the report will look like this:

Figure 31 - Results of the CDMA Handset Comparison Final Summary Report

Your UMTS Training Materials come with several pre-defined reports for UMTS voice and data calls that can be run according to the steps above. The following table describes each report and indicates what type of data each report should be run with.

Report Name Run on Data Stream type Report Sheet Description

Application Throughput Report.xls

UMTS Data Logfile Provides statistics and distribution information for downlink Application Throughput

UMTS – GPRS Coverage Report.xls

E/GPRS Data Logfile

UMTS Data Logfile

Provides distribution comparison via pie chart of coverage for an E/GPRS drive and a UMTS drive

UMTS – GPRS Throughput Report.xls

E/GPRS Logfile

UMTS Data Logfile

Compares throughput statistics for an E/GPRS network and a UMTS network


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5.2 Custom reports

5.2.1 Creating a custom report

Creating your own formatted report template is easy. View the data you require on a workbook, and then format the report page using Excel.

The objective of this section is to create a simple report, like the one shown below, to display a histogram distribution and statistics for Uu_TrCh_DownlinkBlerAgg. Since BLER is a parameter that can be used to estimate the integrity of the air interface, the value of this parameter throughout a network is of great importance.

Figure 32 – BLER Histogram and Statistics Report

To create this report

1 Ensure that the UMTS Voice 1.dt1 file is loaded.

2 Select the parameter Uu_TrCh_DownlinkBlerAgg from UMTS Downlink

Measurements. Right-click on it and choose Display on Workbook.

Excel now starts. The Workbook contains three sheets, which can be accessed by

clicking on the corresponding tab at the bottom sheet window.

3 Click on any blank sheet in the workbook and rename the sheet “Report”.

4 Click on the Histogram Formatted Data tab. Click and drag to define a window around the data set, including the column headers.

5 Select the chart icon from the top menu bar of Excel: .


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The chart wizard will open:

Figure 33 - Chart Wizard in Excel

6 Select a simple column chart and follow the Wizard prompts and instructions.

7 Click the Finish button in the chart wizard and a basic chart will be created.

8 Cut and paste the new chart onto the “Report” sheet in the workbook or choose to have the chart inserted as an object on the Report sheet.

9 To place the mean and standard deviation statistics in the table in your report, type “=” in the cell you would like to hold the value on the Report sheet. Then

switch to the Statistic Formatted Data tab and select the cell containing the data you wish to add to your report. Press Enter after selecting that cell to create the reference.

10 Add a title to the worksheet, position the histogram on the page, format a table around the statistics and add any other desired formatting.

11 From the Microsoft Excel main menu, select File Save. Save the file in the

folder:

C:\Documents and Settings\All Users\Application Data\Actix\Analyzer\Reports

and name it BLER_Histogram_and_Statistics_Report.

12 Close the Excel workbook.

5.2.2 Running your report with new data

1 Ensure that the UMTS Voice 2.dt1 file is loaded.

2 Select Workbook Open Workbook to open the

BLER_Histogram_and_Statistics_Report saved previously to the folder:

C:\Documents and Settings\All Users\Application Data\Actix\Analyzer\Reports


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3 A dialog will appear that prompts you to select a data stream(s):

Figure 34 - Running the BLER_Histogram_and_Statistics_Report on new data

4 Select the UMTS Voice 2 handset stream and watch the formatted report regenerate for the new data.

5.2.3 Modifying a custom report

Reports can be upgraded or modified at any time. To modify an existing report:

1 Run the report through the Workbook Open Workbook menu before making

any modifications.

2 Make modifications to the existing report, including adding additional parameters from the same data stream, adding the same parameters from different data stream, or making cosmetic adjustments.

3 Save the file.

Note that making modifications to a report by opening the Excel file in Windows will cause the report to become corrupt.

Some suggestions for upgrading existing reports:

Add Additional Parameters to the Report - Add to the existing report different parameters from the same data stream using the Display on Workbook (Active) command. Update the Report page to show results for all parameters included.

Create a Comparison Report – Add to the existing report the same parameter

from a different data stream using the Display on Workbook (Active) command. Update the Report page to show results for both data sets.


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Figure 35 - Comparison Report

Provide Histogram Results as a Percentage – Histogram results expressed as a percentage may provide a more meaningful comparison than results expressed as a count. Create an Intermediate sheet in Excel to convert the histogram values into percentages. Update the Source Data for the histogram chart to reflect the new display method.

Figure 36 - Intermediate sheet for calculating PDF values


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Figure 37 - Comparison Report with PDF

Embed an Excel Macro in a Report – Any Excel format or technique may be applied to a report, including macros which automate specific tasks within Microsoft Excel. The UMTS_CarrierRSSI_Delta_Report provides an example of a report containing an Excel macro. This report provides a comparison of the UTRA_UE_CarrierRSSI parameter at common locations in two different logfiles.

To generate results from the report

1 For the best results, set the workspace binning to Location Binned, X Bin Size = 200 meters, Y Bin Size = 200 meters.

2 Open two logfiles which contain common data points.

3 Run the UMTS_CarrierRSSI_Delta_Report on the two logfiles.

4 On the Report sheet, click the Create Table button. The Create Table button invokes a macro that looks for matching locations in the two logfiles, and

populates the table with the CarrierRSSI values at those data points.

5 To map the Carrier RSSI Delta values, save the resulting table as a delimited text file. Use the File → Import Text File option to import the data. Once the

data is imported, the parameters may be viewed using all standard viewing mechanisms.


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Figure 38 - UMTS_CarrierRSSI_Delta_Report results

Actix Analyzer UMTS Technology Training Course February 2008 Performing custom analysis 57

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6 Performing custom analysis

You can create a wide variety of customized analyses, possibly to highlight potential voice or data problem areas, or test for common symptoms of bad radio link quality in order to

speed up the analysis of data. Your customized analysis, called a query, can be saved in a workspace and reused for future drive data. Individual queries can be created, accessed, and edited in the workspace through the Analysis Manager.

6.1 About queries Queries are a means of searching and filtering data based on events and thresholds you define. Queries operate on binned data and are written using Boolean expressions and arithmetic operations containing data parameters from one or more data streams. The following types of queries are supported:

Filter Analysis

Binned Query Analysis

Cross Tab Query Analysis

Event Query

Statistic Analysis

Histogram Analysis

Queries assist in the detection, correction, and presentation of network problems. In this section, a number of these analyses are used for examining various aspects of voice and data networks.

All custom analyses can be saved for future use through the Analysis Manager:

1 Select Tools Analysis Manager

2 In the Analysis Manager, select the Existing Analysis tab

3 Select any queries that you wish to save and click the Export button

4 Browse to a folder where you want to save your query. Analyzer‟s default structure

provides the following folder in which to store queries:

C:\Documents and Settings\All Users\Application Data\Actix\Analyzer\Queries

5 Name the *.aqf file Training_Class_Queries. All queries created during training may be stored in the same file.

6 To import the queries into a new worksession, go to the Existing Analysis tab of the Analysis Manager and select the Import button. Browse to find the *.aqf file in

which you saved your queries.

6.2 Filter analysis Sometimes it is desirable to examine only a subset of the data points collected in a logfile.

We can use a filter to look only at those data points of interest to us.

A filter analysis tests data on a single criterion and displays the data only if the criterion is met. This provides the engineer with a quick way to identify trouble areas in which to focus

optimization efforts.


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6.2.1 Working with pre-configured Filters

You have a set of UMTS filters installed in the workspace. These are:

Poor Mobile Receive Power – Uu_ActiveSet_RSCP[0] < -95 dBm

High Mobile Transmit Power – UE_TxPow > 0 dBm

Low Mobile Transmit Power – UE_TxPow < -30 dBm

High Mobile Receive Power – Uu_ActiveSet_RSCP[0] > -80 dBm

Poor Ec/No – Uu_ActiveSet_EcNo[0] < -15 dBm

Good Ec/No – Uu_ActiveSet_EcNo[0] > -8 dBm

To activate these pre-configured UMTS filters

1 Display any parameter of interest in the workspace (i.e. map, chart, table, message browser).

2 Right-click on the stream name and select Filter, then the filtered name.

3 All views will update to show only data points that meet the filter criteria.

4 Multiple filters may be selected at once. The And and Or options on the filter menu designate the method for combining multiple filters.

6.2.2 Creating a custom filter

Filters can be used to quickly identify areas with poor network performance. In this case, we will filter all points with high traffic channel downlink BLER, and use the results to pinpoint where quality problems are occurring and try to determine what is causing them. You can create a filter query which highlights those points which have Uu_TrCh_DownlinkBlerAgg > 10% to identify all the locations on the drive with poor quality of service.

1 From the main menu, select Tools Analysis Manager.

2 Select the Filter icon in the dialog and click on New.

3 For the Filter Name, enter „Traffic Channel BLER‟.

4 Use the attribute chooser to select Uu_TrCh_DownlinkBlerAgg from the UMTS Downlink Measurements group.

5 For the operation, choose >=.

6 For the Threshold, enter ‘10’.


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Figure 39 - Filter Wizard

7 Click OK to create the filter.

8 Confirm that the query was created by clicking on the Existing Analyses tab in the Analysis Manager. The High Traffic Channel BLER filter will be listed under the Filters category.

9 From the Existing Analyses tab, save the High Traffic Channel BLER Filter to the Training_Class_Queries.aqf file by selecting it and using the Export button.

Multiple queries may be saved in one *.aqf file.

10 Display any parameter (i.e. RSSI, EcNo, Uu_ActiveSet_SC_0) on the map. Apply the filter by right-clicking on the stream name in the Attribute Explorer and selecting Filter → High Traffic Channel BLER. Notice that only points with BER

exceeding the defined threshold appear on the map. The filter has provided a quick way of illuminating trouble spots and focusing optimization efforts.

11 Remove the filter from the map by right clicking on the handset data stream, selecting Filter, and ensuring that the High Traffic Channel BLER filter does not

have a check mark against it. The filter can be reapplied at any time.


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Figure 40 - Map of Data Filtered Using the High Traffic Channel BLER Filter

In UMTS networks, areas with interference may be identified as those locations

experiencing poor BLER but strong Carrier RSSI. Filters may be combined using Boolean operations to look at more than one condition at each data point.

12 Create a new filter called Strong Carrier RSSI, which filters on data points where UTRA_UE_CarrierRssi is greater than –85 dBm.

13 Apply the filter to the handset stream of UMTS Voice 1.dt1.

14 With the High Traffic Channel BLER filter applied, right click on the handset

stream, select Filter, and make sure that the AND operator is selected with a bullet.

15 Returning to the Filter menu, apply the Strong Carrier RSSI filter in addition to the High Traffic Channel BLER filter.

What do the data points remaining on the map at this point indicate?

Be sure to save the Strong Carrier RSSI filter, in addition to the other queries you‟ve created, in your Training_Class_Queries.aqf file, making sure to select all of the filters and

queries.

6.2.3 Additional custom filters

Filters may be created on any parameter in the Attribute Explorer. Some additional filter ideas that may be useful for UMTS analysis are included in the UMTS Training

Queries.aqf file that is installed with the training materials, and are described here:

The High Drive Test Speed filter shows data points at which the drive test vehicle was traveling at speeds greater than 60 kilometers per hour. This query will be valid for files containing the SpeedKph parameter in the Independent →

GPS Data group. This query may be modified for different speeds, or to work with the SpeedMph parameter when relevant.


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Figure 41 – Wizard for High Drive Test Speed Filter

The Distant Server filter shows data points at which the serving cell is more than 6 kilometers from the data point. This query is based on the ServingCellDistance parameter, which is present in the Attribute Explorer when the Actix Software is pointing to a valid cell site file.

Figure 42 – Wizard for Distant Server Filter

The Mobile Not In Idle State filter shows data points where the Uu_CallState parameter is not equal to 1 (Idle). As with all filters, this filter may be applied to any parameter displayed. For example, it may be useful to map the UU_UE_HandoffState parameter and apply this filter to show the Handoff State

only when the mobile is in a call.


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Note: When entering a threshold for a parameter with discrete values, it is necessary to type the enumerated

value of the choice you wish to select. In this case, it is necessary to type a „1‟ in the text box – selecting „1=idle‟ from the drop down list will corrupt the filter

Figure 43 - Wizard for Mobile Not In Idle State Filter

6.3 Binned Query analysis The Binned Query allows you to define a new parameter based on existing parameters, using functions and inequalities. The results of a binned query can be displayed on a map,

chart, table, or workbook.

6.3.1 ServingCellDistance in Miles

By default, the serving cell distance is displayed in meters. A simple, yet very useful example of a binned query is the conversion of the serving cell distance from meters to

miles.

Create the ServingCellDistance in Miles query using the Analysis Manager:

1 Select Tools Analysis Manager.

2 Select the Binned Query icon in the dialog and click on New.

3 For the Description, enter „ServingCellDistance in Miles‟.


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Figure 44 - Creating the ServingCellDistance in Miles query

4 In the parameters box, find the serving cell distance under Independent Site

Data Node ServingCellDistance and double-click on it to add it to the

expression.

5 At the end of the text in the Expression Builder, type in ‘/1609.344’.

6 Set the Format to Float. The easiest way to do this is to select the Format drop

down dialog and start typing Float in the window.

7 Click OK to create the query.

8 Click OK again to close the Analysis Manager.

9 The query will appear in the Queries group under every data stream in the Attribute Explorer. Under the handset stream, expand the Queries Binned

Queries group.

10 Right-click on the ServingCellDistance in Miles query and choose Display on Table to display the query results on a table. Drag the original

ServingCellDistance parameter onto the same table to verify the results.

11 Right-click on the ServingCellDistance in Miles query and choose Display on Map to display the query results on a map. Note that the legend ranges must be modified to provide a more meaningful view of the data.

6.3.2 Scanner Pilot Pollution Query

The Binned Query analysis allows you to create a new expression, as a parameter, based on existing parameters. This is useful for adding non-standard analyses, like pilot pollution based on UMTS scanner data, where each vendor has their own definition for the analysis.

Mathematically speaking, the CPICH_Scan_EcIo_For_SC data set is an array that contains Ec/Io data for all SCs measured at each data point. The array_count function counts the number of SCs in this array which have an Ec/Io > -15 dB. The query returns a „1‟ when

the Pilot Pollution criteria are met and a „0‟ when they are not.


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In terms of the network, this query finds all bins where there were more than four servers above -15 dB. Thus, this query detects areas where there are multiple servers, no dominant server, and/or poor signal quality.

To create the Scanner Pilot Pollution query using the Analysis Manager


2 Select the Binned Query icon in the dialog and click on New.

3 For the Description, enter „Scanner Pilot Pollution‟.

Figure 45 - Binned Query Wizard Expression Builder

We will create a custom parameter that counts the number of SCs above –15 dB at each point on the drive, and returns a value of „True‟ if it exceeds 3.

The Expression is:

array_count(CPICH_Scan_EcIo_For_SC[], >, -15) >= 4

4 In the lower right hand window, select „array_count‟ from the list of functions. Notice the pop-up description for each function. Double-click on the „array_count‟ function to add it to the expression. The expression window now contains:

array_count(«attribute[]»,«operation», «expr»)

5 Highlight the <<attribute[]>> parameter. In the lower left hand window, step through the UMTS EcIo group to find the attribute

CPICH_Scan_EcIo_for_SC. Double-click the attribute to add it to the expression.

6 In place of <<operation>>, <<expr>>, enter „>’and ‘-15‟.

7 After the closing parenthesis, enter „ >= 4‟.

8 In the format drop-down list, set the Format to Boolean.

9 Click OK to finish creating the binned query. While still in the Analysis Manager, take the opportunity to save the query to the Training_Class_Queries.aqf file.

10 Click OK to close the Analysis Manager.

This query should be used to analyze Scanner data only.


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Look at the results of the query for a UMTS scanner on the map. Points with Pilot Pollution, as defined by the expression, will show up on the map as a Boolean 1. Points with no Pilot Pollution will show up as a 0.

You may be interested in looking at the number of SCs above the threshold at each

location, as opposed to a Boolean value that designates data points where more than four SCs are above that threshold.

How could you modify the Pilot Pollution Identification query you just created to give the number of SCs above –15 dB at each data point?

Figure 46 - Map Displaying the Results of the Pilot Pollution Query

The results of the Scanner Pilot Pollution query indicate where the Pilot Pollution condition exists. To determine which SCs contribute to the condition, it may be useful to display the EcIo values for each SC on a table, or to create a custom StateForm for viewing the levels of the Top N SCs.

6.3.3 Additional Binned Queries

Binned queries may include any expression or combination of parameters from the workspace. Some additional binned query ideas that may be useful for UMTS analysis are included in the UMTS Training Queries.aqf file that is installed with the training materials, and are described here:

The Number of SCs Within 3 dB of the Strongest Server query provides the number of SCs at each data point, including the strongest SC, measured within 3

dB of the strongest server. The expression uses the UMTS scanner parameter CPICH_Scan_EcIo_SortedBy_EcIo, which provides the scanned EcIo values in order from strongest to weakest. The array_max function is used to ensure that the strongest EcIo value is selected for comparison purposes. The Format for this expression is Count.


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Figure 47 – Expression Builder for Number of SCs Within 3 dB Query

The High Active Set Count query indicates data points where there are three or more SCs in the Active Set. The threshold in this expression can be modified as required. The Format for this expression is Boolean, so that the query will return a „True‟ or „False‟ result depending upon whether the high active set count condition

is met.

Figure 48 - Expression Builder for High Active Set Count Query

Some parameters, such as Uu_CallState, are collected infrequently, and may appear sporadically when displayed on any data view. In such cases, the state function may be used to hold the last valid value of the parameter and provide a

solid data trail. The Uu_CallState Last Valid Value query demonstrates the use of the state function to hold the last valid value for Uu_CallState, providing a solid data trail for that parameter.


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Figure 49 - Expression Builder for Uu_CallState Last Valid Value

It may be desirable to find the strongest SC, or the EcIo of the strongest SC, for a user-defined list. The “subarray” function types allow the user to find the nth

strongest/weakest element in a list specified by the user. The Scanner Strongest SC - User Defined List and Scanner Strongest EcIo - User Defined List

queries return the strongest SC/EcIo for SCs 11, 12, 13 and 14. The list may be modified for the SCs of interest.

Figure 50 - Expression Builder for Scanner Strongest SC - User Defined


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Figure 51 - Expression Builder for Scanner Strongest EcIo - User Defined

It is possible to filter on the results of a binned query expression. This technique is used in the Display SysInfo Messages filter. It shows only data points at which

these messages were received. The Filter Wizard for this analysis is shown below:

Figure 52 - Filter Wizard for Display SysInfo Messages Filter


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The Message Type Filter expression was created to specify the messages to include in the filter:

Figure 53 - Message Type Filter Expression

The expression uses the Boolean AND („&&‟) operator to specify Uu_RRC_MsgType numbers that indicate SysInfo messages (1100 – 3600). The

expression returns a “true” value if the current Uu_RRC_MsgType falls within this range. The filter is set up to include only those data points where this expression evaluates to “true”. When entering a threshold for a parameter with discrete values, it is necessary to type the enumerated value of the choice you wish to select. In this case, it is necessary to type a „1‟ in the text box – selecting „1 = true‟ from the drop down list will corrupt the filter.

6.4 Histogram and Statistic Query analysis Serving cell distance is an important parameter to consider when diagnosing network problems. Knowing the average serving cell distance throughout a logfile or the number of

data points at which the distance is high may indicate whether the data network is performing properly.

Histogram and Statistic Queries are available to provide these analysis formats for custom expressions. Since the serving cell distance in miles is not available as a standard parameter, it is necessary to use the Histogram and Statistic Query formats to provide results for this type of analysis.

6.4.1 ServingCellDistance in Miles Statistic Query

This section describes the creation of a Statistic Query for the ServingCellDistance in Miles custom expression.

1 Create a new Binned Query to provide the ServingCellDistance in Miles. Refer to the previous section if you have not already created this query.

2 Display the ServingCellDistance in Miles binned query results for UMTS Voice 1 on a chart to verify that the query is working properly.


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3 From the Analysis Manager, create a new Statistic Query to provide statistics for the new ServingCellDistance in Miles expression:

Query Name: ServingCellDistance In Miles Statistics

Expression: Use the button to select the ServingCellDistance

In Miles expression created in Step 1.

Choose not to exclude data from the calculation.

Figure 54 - Statistic Wizard for the ServingCellDistance In Miles Statistics query

4 Statistic query results can be found in the Queries → Statistics group under each

data stream in your file. Display the ServingCellDistance In Miles Statistics query results for UMTS Voice 1 on a table. Select the Statistics tab on the table.

What is the mean serving cell distance in miles for this file?

What is the maximum serving cell distance in miles for this file?

6.4.2 ServingCellDistance in Miles Histogram query

This section describes the creation of a Histogram query for the ServingCellDistance in Miles custom expression.

1 From the Analysis Manager, create a new Histogram Query to provide a distribution plot for the ServingCellDistance In Miles parameter:

Query Name: ServingCellDistance In Miles Distribution

Expression: Use the button to select the ServingCellDistance In Miles expression created in Step 1.

Select the option to “Specify ranges for my histogram bars”.

Set the following ranges:

≥ 0 and < 0.5

≥ 0.5 and < 1

≥ 1 and < 2

≥ 2 and < 5

≥ 5

Click OK to exit the Histogram Wizard.


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2 Save this query, in addition to the other queries you‟ve created, in your Training_Class_Queries.aqf file, making sure to include all of the previously created queries and filters.

Figure 55 - Histogram Wizard for the ServingCellDistance In Miles Distribution Query

3 Histogram query results can be found in the Queries → Histograms group under

each data stream in your Attribute Explorer. Display the ServingCellDistance In Miles Distribution results on a chart.

In what range did most ServingCellDistance In Miles values fall for this file?

A histogram query may be used to the view the distribution for any parameter consisting

of different data ranges than the defaults. The figure below is a histogram for the

UTRA_UE_CarrierRssi parameter. Notice that the ranges on the X-axis are different from the default ranges provided when mapping this parameter. Histogram Query results may be embedded in a report to provide specialized ranges that are different from those used for mapping in the workspace.


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Figure 56 - Histogram Chart with different ranges for UTRA_UE_CarrierRssi


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6.5 Crosstab Query Analysis The Crosstab query is used to group data and display statistics for each group. The groups can be sorted, and a query can contain several options for grouping data.

6.5.1 Sort by Site and Sector Crosstab Query

The Crosstab query may be used to group UMTS data by serving site and sector. This example will have the Serving Site and Serving Sector as the grouping options, and the mean RSSI, maximum number of SCs in the active set, and number of dropped calls as the statistics to display for each group. When the query is completed and the results are displayed on the Statistics Explorer, it will look like this:

Figure 57 - Results of Crosstab Query on the Statistics Explorer

To Create the Crosstab Query


2 Select the Crosstab Query icon and click on New.

3 Name the query “Sort by Site and Sector”.

4 Click on the New Dimension button. The query dimension allows you to group and order your results using the attribute you select.

Use the attribute chooser to select Independent Site Data

Node ServingCellID to add the serving site as the first dimension.


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Use the attribute chooser again to select Independent Site Data

Node ServingSectorID to add the serving sector as the second

dimension.

The query statistics are the results that you would like to include for each dimension. The parameters that you choose will be displayed as the columns in the Statistics Explorer. The statistics that we will include in this query are the mean RSSI, maximum number of SCs in the active set, and the number of dropped calls. All of these statistics

will be available for the complete drive, for each serving site and sector. Specific parameters relating to each statistic are included in the table below.

5 Click on the New Statistic button to launch the Statistic Window.

Enter the Statistic name.

Use the attribute chooser to select the statistic of interest.

Select the method to use to calculate the statistic.

Click OK when finished with the Statistic Window.

Statistic Name Expression Method of Calculation

Mean RSSI UTRA_UE_CarrierRssi Mean

Max Active Set Count Uu_ActiveSet_Count Max

# Dropped Calls Uu_CallDropped

(Note: it is necessary to change the format group of this parameter to ‘Count’. To do this, ‘Edit’ the expression and type ‘count’ in the format group drop down.

Count

6 Once completed, click OK in all other active dialogs to complete the query.

7 Save the Sort by Site and Sector Crosstab query, in addition to the other queries you‟ve created, in your Training_Class_Queries.aqf file.


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Figure 58 - Specifying the Dimensions and Statistics for the Crosstab Query

6.5.2 Display the Crosstab query results

Once created, the Crosstab query results can be displayed in the Statistics Explorer by right clicking on the query in the Attribute Explorer, and selecting Display in Statistics Explorer. The Statistics Explorer will launch and the results can be viewed, sorted by Serving Cell ID or Serving Sector ID. The queries can also be displayed in Excel

workbooks.

Run the Crosstab query on the UMTS Voice 1 handset stream.

6.5.3 Filter the Crosstab query results

The Filter button on the Statistics Explorer may be used to quickly filter query results in the Stats Explorer and in any other data view. In this case, it may be useful to view data

for only one serving site, such as Site 109.

1 View Uu_ActiveSet_EcNo_0 from the UMTS Voice 1 handset stream on a map. Display the Uu_CallDropped event on the same map.

2 Tile the map and the Statistics Explorer vertically in the workspace by selecting Window Tile Vertically.

3 In the Statistics Explorer, select the row for Site 109.

4 With the row for Site 109 selected, press the Filter button in the Statistics Explorer. Notice that only data points served by this site remain in the Statistics

Explorer and on the map.

5 To remove filtering, click the Filter button again. The filter will be unapplied from both the map and the Statistics Explorer.


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6.5.4 Additional Crosstab queries

Crosstab queries may be used to sort statistics by any relevant dimension. Some additional Crosstab query ideas that may be useful for UMTS analysis are included in the UMTS Training Queries.aqf file that is installed with the training materials, and are described here:

The Sort by Strongest Active SC query provides the same statistics as the Sort by Site and Sector query, though the results are sorted by the strongest Active SC. The Copy From button in the Crosstab query wizard may be used to copy the stats from the Sort by Site and Sector, instead of building each statistic from

scratch.

Figure 59 - Sort by Strongest Active SC Query Wizard

The Sort by Data Task ID query provides statistics for a UMTS data log sorted by the unique ID assigned to each task in the file. The statistics provided include the Task Name for each task, throughputs, round trip time values, and elapsed time for each task.


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Figure 60 - Sort Data Statistics by Task ID query

The Sort by Data Task Name query provides statistics for a UMTS data log sorted by the each task name in the file. The Task Name is not necessarily unique within a logfile, so results may group several tasks which have the same name.

The statistics provided are similar to those included in the Sort by Data Task ID

query, and may be obtained by using the Copy From button, instead of recreating the statistic from scratch.

Figure 61 - Sort by Data Task Name query results

The Sort by Call ID query provides statistics for each call in the logfile. The Dimension for this query is the Uu_Call_ID parameter. The Statistics for this query make use of expressions, defined as follows:

Statistic Name

Expression Method of Calculation

Format Group

Call Duration

(minutes)

Uu_CallDuration/60000 Maximum Value Float

Call Setup Time (ms)

Uu_TimeBetweenRRC_REQandCallStart Maximum Value Time


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Statistic Name

Expression Method of Calculation

Format Group

# Dropped Calls

Uu_CallDropped Count Count

# Call Setup Failures

default(Uu_IncomingCallSetupFail*1,Uu_OutgoingCallSetupFail*1)

Count Count

% Bad Quality Uu_Pilot_DownlinkBER >= 10 Percentage Percent True

The Sort by Call ID query will look like this when displayed on the Statistics Explorer:

Figure 62 - Sort by Call ID Query Results

6.6 Event Query Analysis The Event Query allows you to extract key performance statistics for a user-defined time or message window before or after a defined event like a handover failure or dropped call. Viewing the window surrounding an event can provide insight into whether a pattern exists

among undesirable events, such as multiple drops in an area due to low coverage.

We will create an Event Query to return statistics for a five-second window for each dropped call in the file. The query results can be displayed on the Statistics Explorer as in the figure below:

Figure 63 - Dropped Call Window Results

To create the Dropped Call Window Event Query


2 Select the Event Query icon in the dialog and click on New.


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3 For the Trigger Selection, use the attribute picker to select UMTS Event

Data Uu_CallDropped. The parameter will show up in the triggering window.

4 For the Window Range, choose Time Based and set the window to 5,000 milliseconds before the event and 0 milliseconds after the event.

Figure 64 - Setting up the Event Query

5 Click Next.

6 For the name of the query, enter „Dropped Call Window‟.


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Figure 65 - Defining the Name, Dimensions, and Statistics for the Query

7 In an Event Query, the query dimension is set by default to be the EventTime. In this case, we will use the default dimension.

8 To define a statistic to be displayed in the event window, click on the New

Statistic button to launch the Statistic window.

9 For the name, enter „Site ID‟.

Figure 66 - Choose a Calculation Method for the Event Query

10 Choose the Edit button below the line that reads “Enter the expression that should be calculated in your statistic:”.


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11 The Expression Builder will launch. Inside the top portion of the window, type State(). This State() function is required to ensure that the last valid value of the parameter persists.

12 Click inside the parentheses of the State() function. In the Parameters area of the Expression Builder, expand the Independent Site Data Node tree.

Double-click on the ServingCellId parameter to insert it into the expression.

13 Click OK to exit the Expression Builder.

Figure 67 - Expression Builder for the Event Query

14 In the Statistic window, select the method to calculate the statistic. In this case, select Last Value. Click OK when finished with the Statistic window.

15 Repeat steps 7 through 14 above to define the following statistics (choose an appropriate name for each one). The statistics that require the use of the State() function or that access an individual element of an array (i.e. Uu_ActiveSet_SC[0]) must be specified using the Expression Builder. All other

statistics may \be picked using the Attribute Chooser .

Expression Method to Calculate

State(ServingSectorID) Last Value

State(Uu_Call_ID) Last Value

Uu_UE_HandoffState Last Value

UTRA_UE_CarrierRSSI Mean

UE_TxPow Mean

Uu_Pilot_DownlinkBER Mean

Uu_ActiveSet_SC[0] Last Value

Uu_ActiveSet_EcNo[0] Mean


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16 Once completed, click OK in all other active dialogs to complete the query.

6.6.1 Displaying Event Queries

Once created, the event query can be displayed in the Statistics Explorer by right clicking on the query in the Attribute Explorer, and selecting Display the Statistics Explorer. The Statistics Explorer will launch and the results can be viewed, sorted by the time of the event (in milliseconds). The queries can also be displayed in Excel workbooks.

Run the event query on the UMTS Voice 1 handset stream.

How many dropped calls occurred in this file?

What appears to be the primary reason for the dropped call(s)?

Figure 68 - Displaying the Results Of the Event Query

Be sure to save the Dropped Call Window event query, in addition to the other queries

you‟ve created, in your Training_Class_Queries.aqf file, making sure to include all of the filters and queries.

6.6.2 Additional Event Queries

Event Queries may be developed to analyze any event within a logfile. Some additional Event Query ideas that may be useful for UMTS analysis are included in the UMTS Training Queries.aqf file that is installed with the training materials, and are described here:

The Active Set Update Summary Event Query provides statistics at each Active Set Update in a logfile, including the SCs in the Active Set at the Update, the Active Set Size at the Update, and the time between the current and previous Active Set Updates.


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Figure 69 - Active Set Update Summary Query Results

The Event Query can serve as a mechanism for extracting individual calls as separate streams in the Attribute Explorer. This technique is illustrated in the UMTS Drive Test Call Extractor Event Query. When displayed on the Statistics Explorer, this query appears to be very similar to the Sort by Call ID Query.

Figure 70 - UMTS Drive Test Call Extractor Query Results

There are two primary differences between the results of the UMTS Drive Test Call Extractor Query and the Sort by Call ID Query:

The UMTS Drive Test Call Extractor Query contains an extra statistic, in that Call ID is included as the last statistic.

The Analyze button is active in the Statistics Explorer when the UMTS Drive Test Call Extractor Query is displayed. Selecting any Call ID in the Statistics Explorer and clicking the Analyze button will cause a new substream containing data from


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that call to be extracted in the Attribute Explorer. Data can be displayed and analyzed from any substream in the same way for any standard stream.

Figure 71 – Substreams from the UMTS Drive Test Call Extractor Query

The UMTS Drive Test Call Extractor Query is an Event Query set up as follows:

Trigger Selection: state(Uu_Call_ID)>0

Messages Before Event: 0

Messages After Event: 0

Discriminator: state(Uu_Call_ID)

Dimension: state(Uu_Call_ID) (remove the default EventTime dimension)

Statistics: Same as the statistics for the Sort by Call ID Query, with the addition of the Call ID statistic (last value of state(Uu_Call_ID))

Actix Analyzer UMTS Technology Training Course February 2008 Scanner-Based Network Rollout Analyses 85

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7 Scanner-Based Network Rollout Analyses

7.1 Neighbor List Analysis The Neighbor List Analysis provides an automated approach for generating optimal neighbor lists and overcoming major service degrading problems such as missing neighbors.

The key components of the neighbor list module are:

Generation of recommendations for optimal neighbor list settings based on UMTS/WCDMA scanner drive test data.

Integration with Network Element Database to audit existing neighbor lists and suggest changes, and to correlate non-unique measured data attributes such as Scrambling Code with unique identifiers such as Sector ID.

The Neighbor List Module implements the following algorithm:

Ec/Io measurements below a noise floor are filtered out of the data set before analysis.

User definable binning is used to reduce the number of measurement points in each bin to create one value per bin – optionally, no binning at all can be applied

and the analysis will run on the full data set.

At each point along the drive test, a list of prospective neighbors is accumulated. If a neighbor signal is within a user-definable threshold of the best server in the active set, then it is considered as a potential neighbor.

Using the geographic information in the log file and the SC, the network element database is searched to identify the Sector and Cell IDs of the SC.

Once all the bins in the log file have been compiled into the symmetrical matrix, the results are compared against actual neighbor lists contained in the network

element database and the following are calculated:

A list of sector IDs included in the matrix, but not the actual neighbor list.

A list of sector IDs included in the actual list, but not the matrix.


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Figure 72 - Neighbor List Analysis Example

In the figure above, Cell A is the best server by CPICH Ec/Io. Cells B and C are within a user-specified threshold of Cell A's are Ec/Io, and so are counted as potential neighbors of A. Cell D is not within the required threshold and so is not counted as a prospective neighbor, nor is Cell E which did not have a measurable signal contribution at this point in the drive test.

Here is a sample symmetric prospective neighbor array, using sector IDs A, B, C and D:

A B C D

A N/A 10 2 15

B 10 N/A 40 0

C 2 40 N/A 12

D 15 0 12 N/A

The limitations of this algorithm are:

Results are only produced in areas that have been tested, so the test areas should be carefully considered before removing any Sectors from the neighbor lists.

Drive test do not necessarily emulate the radio environment encountered by pedestrian and in-building users; however, walk tests and in-building test may be included in the analysis as desired.

To access the Neighbor List Recommendations report

1 Ensure that a suitable UMTS scanner file and the corresponding Network Element Database is loaded.

2 Configuration parameters for this analysis can be set by selecting Tools → Preferences → WCDMA Neighbor List. The configuration preferences include

the reporting range, maximum list size, addition and removal thresholds and minimum number of samples to include a server in the analysis.

3 From the main menu, select Analysis → UMTS Accelerated Network Rollout.

4 Double-click on the Neighbor List Recommendations report icon in the lower pane of the Application Pack.

C

Neighbour 2


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5 If there is no cell site database corresponding to the current dataset, or if the current cell site database does not contain neighbor list information, the report will work, though the results in the “Cell”, “Site” and “Action” columns will be invalid.

Figure 73 - Neighbor List Recommendations Report Output

7.2 CPICH Pollution Analysis The CPICH or Pilot Pollution Analysis uses an Simulated Active Set to estimate which pilots would have been actively demodulated by the UE, and then detects other pilots above a user-definable threshold that cause excessive interference. Please see the Simulated Active Set section for more details on how the Active Set is estimated based on WCDMA

scanner measurements.

The pilot pollution algorithm has these components:

Ec/Io measurements below a noise floor are filtered out of the data set prior to analysis.

User-definable binning is used to reduce the number of measurement points in each bin to create one value per bin – optionally, no binning at all can be applied and the analysis will run on the full data set.

At each point along the drive test, CPICH Ec/Io data for each Scrambling Code is used to assign SCs to an Active Set or a Pollution Set (please see the Simulated

Active Set section for more details).

The Pollution Set consists of all SCs that are not in the Active Set, and have a CPICH Ec/Io within a user specified pollution threshold of the strongest CPICH Ec/Io in the Active Set.

Using the geographic information in the log file and the SC, the network element database is searched to identify the Sector and Cell IDs of the SC.


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A pollution array is created in memory which records the number of times each sector ID is seen as a source of pilot pollution.

All bins in the log file are then processed into the pollution matrix.

In the example below, Cells A, B and C are part of the Active Set, as determined by the Simulated Active Set module. Cell D has a CPICH Ec/Io within a user-specified pollution

threshold of the Active Set‟s best server Ec/Io, and so is counted as a contributor to pilot pollution at this point in the drive test. Cell E has a CPICH Ec/Io that is not within this threshold and so is not a pollution source.

Figure 74 - CPICH Pollution Analysis Example

Shown below is a sample pollution array indicating the number of points at which each sector caused pilot pollution for sector IDs A, B, C and D:

Sector ID Pollution Count

A 0

B 150

C 45

D 12

Results are presented in the Pilot Pollution Analysis application report. In addition, Pilot Pollution may be geographically analyzed for each SC by accessing the Pollution_for_SC attribute in the Attribute Explorer.

To access the Pilot Pollution Analysis report

1 Ensure that a suitable UMTS scanner file and corresponding Network Element Database are loaded in the workspace.


3 Double-click on the Pilot Pollution Analysis report icon in the lower pane of the

Application Pack.

A

Active Set


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4 Enter the Pilot Pollution Margin (dB). This margin is used to determine which pilots in the monitored set are within close proximity to the strongest pilot in the active set.

Shown below, the Pilot Pollution Analysis Report indicates the worst interferers sorted by

Scrambling Code:

Figure 75- Pilot Pollution Analysis Report Output


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7.3 Handoff Analysis The Handoff Analysis module uses the Simulated Active Set to determine the handoff state at each point along a drive test. Statistics on handoff state may then be calculated and presented in a report format. Excessive handoff state reduces capacity and increases infrastructure costs for a given traffic level. Please see the Simulated Active Set section for more details on how the Active Set is estimated based on WCDMA scanner measurements.

The handoff state algorithm has the following components:

The Active Set of pilots is determined using the Simulated Active Set module.

Using the geographic information in the log file and the SC, the network element

database is searched to identify the Sector and Cell IDs of the SC.

Handoff state is calculated by determining the configuration of the sectors in the Active Set.

All bins in the log file are then processed into the handoff state matrix.

Reports showing the percentage of handoff state for each sector and for the total drive test may then be calculated.


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The Handoff State Analysis examines Sector IDs involved in call at a given drive test point and determines which of the above states applies, based on UMTS scanner data:

Figure 76- Handoff State descriptions

To access the Handoff Analysis report

1 Ensure that a suitable UMTS scanner file and the corresponding Network Element Database are loaded.


3 Double-click on the Handoff Analysis report icon in the lower pane of the Application Pack.


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The populated Handoff Analysis report will look like this:

Figure 77 - Handoff Analysis Report Output


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7.4 Simulated Active Set The CPICH Pollution Analysis and Handoff Analysis reports are both based on a calculated Active Set, which is determined by the Simulated Active Set Module. The Simulated Active Set module implements the 3GPP handoff algorithm and uses scanner Ec/Io measurements in conjunction with user-specified 3GPP handoff thresholds to emulate the Active Set at each point along a drive test. These thresholds, available for modification by the user, are in the Tools → Preferences dialog under WCDMA. The attributes available for

modification are listed in the figure below, as indicated in the 3GPP specifications:

Figure 78 - Simulated Active Set settings


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As well as being used in reports, the Simulated Active set parameters are specified as attributes for UMTS scanner data, and may be displayed on any standard data view. Below is a sample set of scanner data for three individual SCs with color and vertical lines indicating transitions of pilots into and out of the Active Set.

Figure 79 - Simulated Active Set Measurements and Transitions

Actix Analyzer UMTS Technology Training Course February 2008 Printing Maps 95

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8 Printing Maps

These methods allow you to obtain printable map outputs:

Print using “Quick Print”

Print using Map Layout Designer

Copy to Clipboard

Export Map to a different file format

Export individual map layers to Map Info

8.1 Quick Print The recommended method is the “Quick Print”. The Quick Print option allows you to

bypass the Map Layout Designer and print the map with a legend in a fixed position.

To print a map using the Quick Print option (recommended)

1 Display data on a map in the workspace.

2 Select the Print button from the map toolbar.

3 Select the paper source, page orientation, and margin sizes.

4 Use the Options button in the lower left hand corner of the Print Setup dialog to

adjust map size, content, legend visibility, and scale.

5 In the Print Setup dialog, select OK to print the map.

8.2 Print using Map Layout Designer The Map Layout Designer may be used to arrange the map and legend on the page, add a title, and preview the output.

To print your map using the Map Layout Designer

1 Open a map with data in the workspace.

2 Select the Layout button from the toolbar.

3 Choose the page layout for the map and select OK to bring up the Map Layout Designer.

4 Double-click on the Label box to change the title of the map.

5 Move the label box and the map so that they are not overlapping. Resize the text box as necessary. With the Label Box selected, choose Properties from the Toolbar to change the label font.

6 Move the legend so that it is not overlapping the map trail. Resize the legend as

necessary.

7 Select Print Preview from the Toolbar to determine what the printed page will look like. Close Print Preview to make any modifications necessary.

8 Select Print when the map layout is arranged to your satisfaction.

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8.3 Copy to clipboard You can also print a map by copying it to the clipboard.

1 Right-click on the map to be copied and select Copy to Clipboard.

2 Paste the map into another application and use that application‟s print function to print the map.

8.4 Export map to a different file format A fourth option is to convert the map to a different file format and use a compatible program to print the output file. You can export to these formats: BMP, JPG, WMF, PNG, TIF, GIF, and PSD.

1 Right-click on the map and choose Export Map.

2 Select the desired file format.

8.5 Export individual map layers to MapInfo Finally, a fifth option is to export individual map layer(s) directly into MapInfo. To do this:

1 From the map view, click the Layers button to open the Layer Control dialog box.

2 Select Export.

3 Choose the layers that you wish to export. Browse to the appropriate destination folder.

4 Click OK.

Actix Analyzer UMTS Technology Training Course February 2008 Appendix A – UMTS Event Definitions 97

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9 Appendix A – UMTS Event Definitions

9.1 Event Data – Call Events

Call Event Name Triggering Sequence

Uu_OutgoingCallOK Uu_RRC_MsgType == RRC Connection Request (1) with Uu_RRC_RRCConnectionRequest_establishmentCause equals any of the following:

*RRC_OriginatingConversationalCall

*RRC_OriginatingStreamingCall

*RRC_OriginatingInteractiveCall

*RRC_OriginatingBackgroundCall

*RRC_OriginatingSubscribedTrafficCall

*RRC_Registration

Uu_RRC_MsgType == RRC Connection Setup (1)

Uu_RRC_MsgType == RRC Connection Setup Complete (1)

GSM_Um_Msg_Type == MM CM Service Request

GSM_Um_Msg_Type == MM Authentication Request (*)

GSM_Um_Msg_Type == MM Authentication Response (*)

Uu_RRC_MsgType == Security Mode Command (*)

Uu_RRC_MsgType == Security Mode Complete (*)

GSM_Um_Msg_Type == CC Setup (*)

GSM_Um_Msg_Type == CC Call Proceeding (*)

Uu_RRC_MsgType == Radio Bearer Setup (*)

Uu_RRC_MsgType == Radio Bearer Setup Complete (*)

GSM_Um_Msg_Type == CC Connect (*)

GSM_Um_Msg_Type == CC Alerting OR CC Connect Acknowledge

(1) At least one of those messages (RRC Connection Request,

Setup or Complete) needs to be present to initiate the call

setup

(*) The messages with the symbol star are usually present but not mandatory


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Uu_IncomingCallOK Uu_RRC_MsgType == PagingType1 with

Uu_RRC_PagingRecord_cn_Identity_pagingCause equals any of the following:

*TerminatingConversationalCall

*TerminatingStreamingCall

*TerminatingInteractiveCall

*TerminatingBackgroundCall

Uu_RRC_MsgType == RRC Connection Request (2) with Uu_RRC_RRCConnectionRequest_establishmentCause

equals any of the following:





Uu_RRC_MsgType == RRC Connection Setup (2)

Uu_RRC_MsgType == RRC Connection Setup Complete (2)

GSM_Um_Msg_Type == RR Paging response

GSM_Um_Msg_Type == MM Authentication Request (*)

GSM_Um_Msg_Type == MM Authentication Response (*)

Uu_RRC_MsgType == Security Mode Command (*)

Uu_RRC_MsgType == Security Mode Complete (*)

GSM_Um_Msg_Type == CC Setup (*)

GSM_Um_Msg_Type == CC Call Proceeding (*)

Uu_RRC_MsgType == Radio Bearer Setup (*)

Uu_RRC_MsgType == Radio Bearer Setup Complete (*)

GSM_Um_Msg_Type == CC Connect (*)

GSM_Um_Msg_Type == CC Alerting OR CC Connect Acknowledge

(2) At least one of those messages (RRC Connection Request, Setup or Complete) needs to be present to initiate the call setup. Paging type 1 message is required for an incoming call.

(1) At least one of those messages (RRC Connection Request, Setup or Complete) needs to be present to initiate the call setup

(*) The messages with the symbol star are usually present but not mandatory


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Uu_OutgoingCallSetupFail Uu_RRC_MsgType == RRC Connection Request with

Uu_RRC_RRCConnectionRequest_establishmentCause equals any of the following:






*RRC_Registration

Then any of the following options:

*Uu_RRC_MsgType == RRC Connection Reject or

*Uu_RRC_MsgType == RRC Connection Setup

*Uu_RRC_MsgType == RRC Connection Release or

*Any BCCH messages during the call setup

Uu_IncomingCallSetupFail Uu_RRC_MsgType == PagingType1 with Uu_RRC_PagingRecord_cn_Identity_pagingCause equals any of the following:





Uu_RRC_MsgType == RRC Connection Request with Uu_RRC_RRCConnectionRequest_establishmentCause equals any of the following:





Then any of the following options:

*Uu_RRC_MsgType == RRC Connection Reject or

*Uu_RRC_MsgType == RRC Connection Setup

*Uu_RRC_MsgType == RRC Connection Release or

*Any BCCH messages during the call setup

Uu_CallCompleted When in Call (Outgoing Call Ok or Incoming Call Ok), you get one of the following messages:

*GSM_Um_Msg_Type == CC Disconnect or

*GSM_Um_Msg_Type == CC Release Complete or

*GSM_Um_Msg_Type == CC Release

And any of the above messages with a normal cause for

ending the call (CauseCodeCC is equal or less than 31)


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Uu_CallDropped When in Call (Outgoing Call Ok or Incoming Call Ok),

you get any of the following options:

Any BCCH Message or

Uu_RRC_MsgType == RRC Connection Release AND Release Cause is not Normal or

One of the following messages:

*(GSM_Um_Msg_Type == CC Disconnect) OR

*(GSM_Um_Msg_Type == CC Release Complete) OR

*(GSM_Um_Msg_Type == CC Release)

*AND any of the above messages with NOT a normal cause for ending the call (CauseCodeCC is greater than 31)

Uu_LocationUpdateOK GSM_Um_Msg_Type == MM Location Updating Request

GSM_Um_Msg_Type == MM Location Updating Accept

Uu_LocationUpdateFail GSM_Um_Msg_Type == MM Location Updating Request

GSM_Um_Msg_Type == MM Location Updating Reject

9.2 Event Data – RRC Events

RRC Event Name Triggering Sequence

Uu_OutgoingRRC_ConnectionOK Uu_RRC_MsgType == RRC Connection Request with Uu_RRC_RRCConnectionRequest_establishmentCause equals any of the following:






*RRC_Registration

Uu_RRC_MsgType == RRC Connection Setup

Uu_RRC_MsgType == RRC Connection Setup Complete


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RRC Event Name Triggering Sequence

Uu_IncomingRRC_ConnectionOK Uu_RRC_MsgType == RRC Connection Request

with Uu_RRC_RRCConnectionRequest_establishmentCause equals any of the following:





Uu_RRC_MsgType == RRC Connection Setup

Uu_RRC_MsgType == RRC Connection Setup Complete

9.3 Event Data – RAB Events

RAB Event Name Triggering Sequence

Uu_RadioBearerSetupOK RAB Setup message

Followed by RAB Setup Complete

Uu_RadioBearerSetupFail RAB Setup message

Followed by RAB Setup Failure

Uu_RadioBearerReleaseOK RAB Release message

Followed by RAB Release Complete

Uu_RadioBearerReleaseFail RAB Release message

Followed by RAB Release Failure

9.4 Event Data – Coverage Events All Coverage Events which make use of thresholds may be customized by the user in the Tools → Display Thresholds menu.

Coverage Event Name Triggering Condition(s)

Uu_PilotPollution 4 or more pilots detected above Uu_PilotPollutionThreshold

Uu_TooManyServers 4 or more pilots are detected within X dB of the server, threshold X is set by the user as Uu_TooManyServersThreshold


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Coverage Event Name Triggering Condition(s)

Uu_System_Interference CPICH_EcNo_in_ActiveSet <

Uu_EcNoInterferenceThreshold and

CPICH_RSCP_in_ActiveSet > Uu_RSCP_InterferenceThreshold

Uu_Coverage_Limited CPICH_EcNo_in_ActiveSet < Uu_Poor_EcNoThreshold and

CPICH_RSCP_in_ActiveSet < Uu_Poor_RSCP_Threshold and

UeTransmittedPower > Uu_CoverageLimitedUE_TxPowerThreshold

Uu_PoorDL_Coverage CPICH_EcNo_in_ActiveSet < Uu_Poor_EcNo_Threshold and

CPICH_RSCP_in_ActiveSet < Uu_Poor_RSCP_Threshold and

UeTransmittedPower < Uu_LowUE_TxPower_Threhold

Uu_PoorUL_Coverage CPICH_EcNo_in_ActiveSet > Uu_Poor_EcNoThreshold and

CPICH_RSCP_in_ActiveSet > Uu_Poor_RSCP_Threshold

and

UeTransmittedPower > Uu_HighUE_TxPower_Threshold

Uu_HandoverProblem This event monitors the Ec/No of Monitored Set SCs with the Ec/No of Active Set SCs in an 8 second window prior to each dropped call. The Uu_HandoverProblem event is pegged

if the Monitored Set SCs are stronger than the Active Set SCs more often than the Active Set SCs are stronger than the Monited Set SCs.

Uu_MissingNeighbor SC in Active Set after drop is not in Active Set before drop and

SC in Active Set after drop is not in Neighbor List before

drop


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9.5 Event Data – Handoff Events

Handoff Event Name Triggering Sequence

Uu_HandoffOK ActiveSetUpdate message (Uu_RRC_MsgType == ActiveSetUpdate)

ActiveSetUpdateComplete message (Uu_RRC_MsgType == ActiveSetUpdateComplete)

Uu_HandoffFail ActiveSetUpdate message (Uu_RRC_MsgType == ActiveSetUpdate)

ActiveSetUpdateFailure message (Uu_RRC_MsgType == ActiveSetUpdateFailure)


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analyzer training umtstech v1 a print copy

Documents

viewing data

network data

formatted data

umts handset data

umts scanner data

formatting tabular data

formatting data labels

loading cell site data