Workshop Drive Test

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TEMS Investigation

Drive Test Workshop Makassar14 June 2007

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Objectives

Introducing TEMS Investigation

How to setup TEMS Investigation

Use TEMS Investigation to collect air interface data

Use TEMS Investigation to identify/investigate air interface problem

Use TEMS in post-processing

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1. Introduction

2. Basic about TEMS Investigation 6.0

4. Preparation & Customizing TEMS Investigation

5. Connecting External Equipment

6. Log-file Handling

7. GSM Scanning

3. User Interface & Information Element

8. Post Processing Data

9. Applicable Network Problem Identification

Contents

10. Interacting with exported log-file to Mapinfo

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GPS

MS

Laptop withTEMS s/w installed + license

GSM Network

Um

Reporting & AnalysisTEMS Set

Introduction

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Basic about TEMS Investigation

S/W Module : Data Collection & Route AnalysisCollect real time Air interface messageData LoggingOff line AnalysisFilter out & presenting air interface dataTest Call & Identify Air interface ProblemFrequency ScanningModified Layer3 ControlStatistical & Geographical Reporting

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User Interface & Information Element (1)

Data Collection

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Data Collection

File & View Equipment Ctrl Connection Recording Reply Report Generator

TEMS 6.0 Toolbar

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Data Collection

Navigator :- Tree scheme interface navigate all module (menu, info elemen, sheet).- Activate by double click or select & drag

Menu Info Element Worksheet

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Data Collection

Info Element :- Include all GSM/GPRS radio parameter- Once modified, affect to presentation of those IE unto map

Color

Info Element

SymbolSize

Modify

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Data Collection

Map :- Geographical presentation.- You may put almost all available info element & event using customized range value, color, symbol, etc.- Cell database and carrier thematic can be loaded on this module.

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Route Analysis

User Interface & Information Element (2)

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Route Analysis

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Route Analysis

Map :- Geographical presentation.- Same to Map presentation on Data Collection.

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Route Analysis

Data Selector :- Summarize handover & call analysis report in tabular.- Down unto per-log-file or cell level.

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Info Element

Serving and Neighbors shows information such as Cell name, BSIC, ARFCN, RxLev, C1 and C2, about the current serving cell and its six strongest neighbors.

Radio Parameter: This window contains information about the radio environment.

Current Channel: This window shows information elements that are related to the channel, which for the time being is used. Here you can get information about CGI, BSIC, BCCH ARFCN etc.

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Info Element

C/A: This window shows the level of interference from adjacent channels.

C/I is meant the carrier-to-interference ratio, that is the ratio between the useful part of the signal strength and the sum of the signal strengths of the undesired (interfering) signal components.

Line Chart: This window shows almost all information elements that are related to serving, neighbor and radio situation in chart format.

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Preparation & Customizing TEMS

Setup a workspace

Cell & Carrier database (*.cel)

Map data preparation

Customizing map presentation

Modifiying Predefined windows

Creating your own windows

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Setup a workspace

A. Default Workspace: C:\Documents and Settings\<NAME>\My Documents\TEMS Product Files\TEMS Investigation 6.0\

Workspaces

B. User Defined Workspace:1. File > New Workspace.2. View > Navigator (if not available).3. Worksheet > New Worksheet (n times).4. Double click on the sheet tab to rename the sheet name.5. Suggested Sheet Name for GSM: Map, Signaling, Scan, Ctrl&Config.6. On Map put windows: Map, Current Channel, Radio Parameter, Serving + Neighbor, Line Chart.7. On Signaling put windows: Layer3 Message, Event, Mode Report.8. On Scan put: Scanner Bar Chart.9. On Ctrl&Config.: Command Sequence, Handset Control, Channel Verification, Audio Indication.

> All windows can be created by double click or dragging item from Navigator > Menu

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1. File > New Workspace. 2. View > Navigator (if not available).

3. Suggested Sheet Name for GSM: Map, Signaling, Scan, Ctrl&Config.

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4. On Map put windows: Map, Current Channel, Radio Parameter, Serving + Neighbor, Line Chart.

Click & drag

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5. If all windows have completely loaded, save the workspace.

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Cell & carrier database (*.cel file)

2 TEMS_-_Cell_names

Cell ARFCN BSIC Lat Lon MCC MNC LAC CI ANT_DIRECTION ANT_BEAM_WIDTH

Majapahit_2-1 53 14 S 6.98867* E 110.479* 510 10 5 1681 60 90

Majapahit_2-2 63 14 S 6.98867* E 110.479* 510 10 5 1682 180 90

Majapahit_2-3 66 14 S 6.98867* E 110.479* 510 10 5 1683 300 90

Kalimas-1 66 23 S 6.9496111111* E 110.48875* 510 10 5 3771 60 90

Kalimas-2 68 23 S 6.9496111111* E 110.48875* 510 10 5 3772 180 90

Kalimas-3 56 23 S 6.9496111111* E 110.48875* 510 10 5 3773 300 90

Combat Bonang-1 86 75 S 6.841907* E 110.571268* 510 10 5 5111 0 90

Combat Bonang-2 64 75 S 6.841907* E 110.571268* 510 10 5 5112 120 90

Combat Bonang-3 59 75 S 6.841907* E 110.571268* 510 10 5 5113 240 90

Field Name Sample ValueCell Majapahit_2-1ARFCN 53BSIC 14Lat S 6.98867*Lon E 110.479*MCC 510MNC 10LAC 5CI 1681ANT_DIRECTION 60ANT_BEAM_WIDTH 90CI_N_1 1682LAC_N_1 5… …… …CI_N_32 3772LAC_N_32 5TCH_ARFCN_1 71TCH_ARFCN_2 74… ..… ..TCH_ARFCN_n 85

Cell Data Sample

Cell Data Format

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Loading a cell file:

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Map data preparation

There are many way to present GSM/DCS site geographically, but at least:1. Manual creation as a line object on mapinfo2. Automatic creation within TEMS Investigation 6.0 using theme of Cell file

Map data means: site data + other useful mapping data such as road, street,building, land contour, etc.

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GeoSet Manager:- GeoSet Manager looks and works much like the Map Window.

- Changes made in the Map window cannot be saved.

- Changes made using the GeoSet Manager can be saved to the GeoSet (*.gst) file

associated with the map.

Creating geoset file can be done on the following step:1. Open a GeoSet Manager window

2. To create new one, cancel open window

3. Change GeoSet name on the available box

4. Activate layer control icon and load some necessary map data

5. Shown Label (site name) have to be put on the first column

6. Select site layer > check Automatic Labels on the properties group

7. If all data have been loaded, save the GeoSet using the name on point 3

8. When you have your own GeoSet file, you may open it on the map window

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Continue …

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Customizing map presentation (1)

After a GeoSet file successfully loaded unto map window, we may customize itusing available theme setting. By default there will be some layers on the map:- Coverage Layer- RF Quality Layer- AMR Layer- Event Layer- Cell Layer- Pinpoint Layer

Available Theme:1. IE2. Event3. Cell Theme4. Pinpoint

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Customizing map presentation (2)

• Click “Add Layer” button to add more layers• Click “Add Theme” on selected layer to add thematic data

- Choose fixed size and symbol- Change this setting using: Navigator > Info Element > GSM/CDMA > … Color/Range/Symbol

Selected IE

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Customizing map presentation (3)

Selected Event

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Customizing map presentation (4)

Selected Cell Layer

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Customizing map presentation (5)

Selected Cell Layer

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Customizing Predefined Windows (6)

• These changes are easily performed by right-clicking the predefined window you want to modify.• Then click properties and perform the changes via the tabs in each window respectively.

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Creating Your Own Windows (7)

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Connecting External Equipment

There are 3 steps :

1. Plugging In the equipment (MS, GPS, etc.)2. Enabling/Addition equipment3. Connecting/Disconnecting equipment

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Plugging In Equipment

• Before plugging in any external equipment, please ensure to install required driver (i.e. GPS,

USB Hub)

• Attached dongle license to do this procedure

• Sony Ericsson GSM phones can alternatively connect by means of a dual port serial cable

(TEMS & DATA)

• Usually we need Serial-to-USB cable/connector to connect MS to laptop

• If number of available serial port on the computer is limited, try to use USB Hub.

• All equipment are in ‘powered on’ status

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Enabling/Addition Equipment

• Manual Enabling

•Automatic Enabling

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Connecting/Disconnecting Equipment

• Before plugging in any external equipment, please ensure to install required driver (i.e. GPS,

USB Hub)

• Attached dongle license to do this procedure

• Sony Ericsson GSM phones can alternatively connect by means of a dual port serial cable

(TEMS & DATA)

• Usually we need Serial-to-USB cable/connector to connect MS to laptop

• If number of available serial port on the computer is limited, try to use USB Hub.

• All equipment are in ‘powered on’ status

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Log-file Handling

1. Preparing Command Sequence2. Setting up MS properties3. Recording4. File-mark5. Replaying Log-file6. Replay Properties7. Export Log-file

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1. Preparing Command Sequence

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2. Setting up MS properties

On Handset Control > right click > properties

idle

dedicated

C/I, C/A

Power class

band

Speech codec

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3. Recording

4. File-mark

Save recorded file as …

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5. Replaying Log-file

6. Replay Properties

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7. Export Log-file

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Content of export log-file

TXT specific setting

Mapinfo specific setting

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GSM Scanning

1. Setup Scanning2. Frequency Scanning Mode3. Neighbor List Scanning Mode4. C/A Scanning Mode

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1. Setup Scanning

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2. Frequency Scanning Mode (a)

51-87, 574-610

v

v

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Sort by decreasing signal strength

Sort by increasing ARFCN

2. Frequency Scanning Mode (b)

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3. Neighbor List Scanning Mode

Requires:MS1 as Master for serving cell in dedicated modeMS2 as Scanning for neighbor and others

Good candidate neighbor but not registered

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4. C/A Scanning Mode

Serving ARFCN (hopped)

Adjacent ARFCN +/-1

Adjacent ARFCN +/-2

Suitable for Hopping Network rather than C/A which is delivered using “C/i-C/A” via tab Phone Property.

Avoid misleading in receiving data if it taken by Master Phone (old method).

Requires:MS1 as Master for serving cell in dedicated modeMS2 as Scanning for adjacent ARFCN

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Post Processing Data

Generating Report

Customizing Plot of Radio Parameter (SQI, RxLev, etc.)

Binning

Handover Analysis

Call Analysis

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Generating Report (1)

Logfiles

Output Dir.

Configure: device, threshold, event, ect.

Selected I.E.T1,T2: Threshold

Change Threshold

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Generating Report (2) – Sample Report Output

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Generating Report (3) – Sample Report Output

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Customizing Plot of Radio Parameter (1)

1. On the map window, click Add/Edit Theme2. Choose I.E., configure symbol & size on Coverage or RF Quality Layer3. Configuring range value on Navigator > Info Element4. Choose Event and configure its symbol and size5. Other information might be added as required (site, street, etc)6. Displaying some I.E. on the same map is allowed. Add offset value so not overlap7. Don’t forget to select device (MS1, MS2)

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Customizing Plot of Radio Parameter (2)

1. Open logfile & perform Fast Replay2. When it’s finish, click Statistic Tool and Select Rectangle Region3. The result are plot of selected I.E. and Event, additional Info, Legend and Graph

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Thank You