TEMS Training Final Revisi

7/31/2019 TEMS Training Final Revisi

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ra n ngra n ng

Jakarta, 16 Desember 2006Jakarta, 16 Desember 2006


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IntroductionIntroduction

WHATS TEMSWHATS TEMS

= es o e ys em

Product byProduct by ERICSSON

Solution Tools for Wireless Network to Plan o timized

and expand their systems.

A Test tool use to read and control information sent over the air

/cellular system. It can also used for radio coverage measurement


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IntroductionIntroductionWHATS TEMSWHATS TEMS

TEMS TransmitterTEMS Transmitter TEMS LightTEMS Light TEMS IndoorTEMS Indoor

TEMS AutomaticTEMS Automatic TEMS CellPlannerTEMS CellPlanner TEMS LinkPlannerTEMS LinkPlanner

TEMS InvestigationTEMS Investigation TEMS DeskcatTEMS Deskcat

TEMS Drive TesterTEMS Drive Tester TEMS PocketTEMS Pocket

TEMS AutomaticTEMS Automatic TEMS CellSightTEMS CellSight TEMS VisualizationTEMS Visualization


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TEMS

TEMS INVESTIGATION

SoftwareSoftware

HandsetHandset


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TEMS Classic/98TEMS Classic/98 : SH888; post process with GIMS: SH888; post process with GIMS TEMS 2TEMS 2 : R230; post process with GIMS: R230; post process with GIMS

: ; post process w t: ; post process w t TEMS 4TEMS 4 : T68; export from TEMS: T68; export from TEMS

TEMS 5TEMS 5 : T610; export from TEMS: T610; export from TEMS TEMS 6TEMS 6 : various handset data collection & route anal sis: various handset data collection & route anal sis TEMS 7TEMS 7 : various handset; data collection & route analysis: various handset; data collection & route analysis


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As Drive Test ToolsAs Drive Test ToolsDRIVE TESTING HIGHLIGHTSDRIVE TESTING HIGHLIGHTS

DDrive Test = Testing the network in particular areaTesting the network in particular area

to give the real picture of the networksto give the real picture of the networksperformance on the field.performance on the field.

r ve es ann ng

Implementation

c ae p p a sc ae p p a sEvaluating and Improving

The Quality of Service ofSecond Generation CellularSystem

Optimization

,


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As Drive Test ToolsAs Drive Test ToolsDRIVE TESTING HIGHLIGHTSDRIVE TESTING HIGHLIGHTS

Drive Test EquipmentsTEMS

Handset

Laptop

Notes :

-power supply needed, usually using inverter in the car fro laptop, GPS and MS

-GPS should use external antenna

-MS can use external antenna or not use external antenna.

(Use external antenna means measure RxLevel Pedestrian / Street Level)

(Not use external antenna means measure RxLevel In car level) -> more realistic result

If using scenario not external antenna, MS position should be carefully chosen and stableduring drive test


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As Drive Test ToolsAs Drive Test ToolsMODE OF DRIVE TESTMODE OF DRIVE TEST

1. Dedicated / Continuous / Long Call Mode

Making continuous call along drive test activity.Making continuous call along drive test activity.

Before starting the route, call the drive test number, ex. 199 for Telkomsel,And only stop the call when the route (drive test) finish.


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2. Idle Mode

Along the drive test activity, the MS is ON but no call occurAlong the drive test activity, the MS is ON but no call occur

To see the coverage of the network


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3. Sequential / Qos / Short Call Mode

Creating the sequence of call along the drive test activityCreating the sequence of call along the drive test activity

Before starting the route create call sequence, for example:Before starting the route create call sequence, for example:Create call for 70 s and idle for 10 s.Create call for 70 s and idle for 10 s.Along the drive test, play this sequence until theAlong the drive test, play this sequence until the route is finishedroute is finished

To see the real network performance run, whenTo see the real network performance run, when people callpeople call


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To See How the Network RunsTo See How the Network Runs

THE USETHE USE

n wor s:n wor s:

Drive Test Before InstallationDrive Test Before InstallationPerform drive test before our network implemented. This

, .

Drive Test Before SWAPDrive Test Before SWAP

Before swap (change operator network), drive testingneeded to com are the current network with the network after swa .To

justify the new network is better than before.

Drive Test BenchmarkingDrive Test BenchmarkingDrive test the whole area for the whole network active,

before our network implemented. So when our network implemented,can be competed well.

etcetc


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To See How the Network RunsTo See How the Network Runs

THE USETHE USE

In Implementation Works:

Drive Test New Site/ Initial Drive TestDrive Test New Site/ Initial Drive TestInitiate the drive test after a site on-air. Make sure that site

perform well after on-air.

Test Call New SiteTest Call New SiteConducting tests call at a new On-Air site, to justify the

performance of a site just after On-Air.

Drive Test Upgrade/Expand TRXDrive Test Upgrade/Expand TRXAfter implement new TRX or expand TRX, a drive test

performed to justify that site working well with the new TRX.

Drive Test SFH/Hopping implementationDrive Test SFH/Hopping implementationAfter implement SFH/hopping in the network, a drive test

performed to justify that this hopping solution working well with the wholenetwork.


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To See How the Network RunsTo See How the Network RunsTHE USETHE USE

In Optimization works:

Drive test conducted after theres changing in neighbours

database. Make sure the add really added and the delete really deleted.

Drive Test before & after DowntiltDrive Test before & after DowntiltDowntilt conducting, to get better coverage from each antenna.

Drive test performed to make sure the better coverage from each anglechanged.

Drive Test Network AuditDrive Test Network AuditPerforming drive test activity to maintain the whole network.

Could be an annual work.

Drive Test BenchmarkDrive Test Benchmarkper orm ng r ve test to get ust cat on a out our networ . an compete ornot. With comparing the whole network including 'us in drive test.

Drive Test troubleshootingDrive Test troubleshooting. ,

cannot handover from sites surround it, a site that cannot transmit goodsignal and cannot achieve its coverage.

etc,etc,


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How TEMS works?How TEMS works?

Several measurement is only available and recorded in idle mode (C1,C2 etc)Several measurement is only available and recorded in idle mode (C1,C2 etc)

Several measurement is only available and recorded in dedicated mode (RxQual, SQI, FER etc)Several measurement is only available and recorded in dedicated mode (RxQual, SQI, FER etc)

,,

There are several option/feature can be activated by user (force handover, lock handover etc)There are several option/feature can be activated by user (force handover, lock handover etc)which change TEMS measurement behaviorwhich change TEMS measurement behavior

IMPORTANT NOTICE :IMPORTANT NOTICE :

In GSM network there are a lot of parameters which change the network behavior, it is make theIn GSM network there are a lot of parameters which change the network behavior, it is make the

network very flexible.network very flexible.,,

with parameters off (SUB mode) for such as RxLev and RxQual.with parameters off (SUB mode) for such as RxLev and RxQual.


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When usin FULL measurement result?When usin FULL measurement result?Whenever we want to see BTS parameters settings works at live networkWhenever we want to see BTS parameters settings works at live network

When using SUB measurement result ?When using SUB measurement result ?

How TEMS measure FULL or SUB measurement?How TEMS measure FULL or SUB measurement?

recor o an measuremen a e same me an a e same og es, srecor o an measuremen a e same me an a e same og es, sjust need to set what we wan to see in replay mode.just need to set what we wan to see in replay mode.

FULL

SUB

LOG FILE


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To See How the Network RunsTo See How the Network RunsWHAT TO SEE WHAT TO MEASUREWHAT TO SEE WHAT TO MEASURE

Parameters to See

1. RxLevel1. RxLevelLevel of Received signal strength. In dBm or Steps. If the value in form of step substract 110 tothe value to get dBm value.


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3. SQI3. SQIThe parameter used by TEMS to measure Speech Quality.SQI has been designed to cover all factors that RxQual lack to measure.SQI computation considers the factors:

the bit error rate (BER)the frame erasure rate (FER)data on handover eventsstatistics on the distribution of these arameters

Better


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To See How the Network RunsTo See How the Network RunsWHAT TO SEE WHAT TO MEASUREWHAT TO SEE WHAT TO MEASURE

..

FERFERFrame erasure rate

BCCHBCCH--BSICBSIC

HoppingHopping

Interference

TATATime Advance


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4. Others4. Others

FERFER Frame erasure rate; See on Radio Parameter windows

ARFCN BCCHARFCN BCCH--BSICBSIC Absolute Radio Frequency Channel Number of Broadcast Control Channel.. Base Station Identity Code Important data of a site

HoppingHopping Indicating if SFH implemented. See on Current Channel windows, on hoppingchannel, hopping frequencies, MAIO, HSN

C/IC/I The carrier-over-interference ratio is the ratio between the signal strength of the current

serving cell and the signal strength of undesired (interfering) signal components. The C/I measurementfunction built into TEMS Investigation enables the identification of frequencies that are exposed toparticularly high levels of interference, something which comes in useful in the verification and

.

TATATiming Advance. Valid only in dedicated mode. ; To measure the distanceof MS from

serving cell. Valid only in dedicated mode. See on Radio Parameter windows.


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To See How the Network RunsTo See How the Network RunsCASESCASES

The examples of How Drive Test can see a Network runs.The examples of How Drive Test can see a Network runs.


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.

Get in to the site (whether its new or existing), then see on TEMS display,Get in to the site (whether its new or existing), then see on TEMS display,At parameters BCCH, BSIC. If the intended sites BCCH doesnt appear, the site isAt parameters BCCH, BSIC. If the intended sites BCCH doesnt appear, the site is DownDown

If we dont have the site data. We can go the exact position of the site, near/under the antenna.If we dont have the site data. We can go the exact position of the site, near/under the antenna.Then see if on the serving cell, the Rxlev is good ( aboveThen see if on the serving cell, the Rxlev is good ( above --60 dBm)60 dBm)


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2. Handover

We need to check the handover between sector1 of Site A to sector3 of Site B.We need to check the handover between sector1 of Site A to sector3 of Site B.We start at the Site A. Check the parameters on TEMS. Make sure the serving cell nowWe start at the Site A. Check the parameters on TEMS. Make sure the serving cell nowIs from the sector1 of site A. See the neighbour, if the sector3 of site B appear.Is from the sector1 of site A. See the neighbour, if the sector3 of site B appear.Start the drive test with dedicated mode to site B sector3 s ecified the route first .Start the drive test with dedicated mode to site B sector3 s ecified the route first .The handover should be occur along this drive test. If its not, note this as a problem.The handover should be occur along this drive test. If its not, note this as a problem.See any possibility of the problem, such as:See any possibility of the problem, such as: the neighbour not appear, possibility havent been createdthe neighbour not appear, possibility havent been created

theres other site betweentheres other site between

Then do the opposite, start from sector3 Site B to sector1 Site A.Then do the opposite, start from sector3 Site B to sector1 Site A.


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3. Swap Feeder

Theres a possibility that we have bad installation, for example swap feeder.Theres a possibility that we have bad installation, for example swap feeder.Swap feeder occur when the installation switch by mistake, for example the feeder to sector1Swap feeder occur when the installation switch by mistake, for example the feeder to sector1Became to sector 2, from BTS.Became to sector 2, from BTS.We can see this from drive test.We can see this from drive test.For example, we have a site with 2 sectors, with a road in front it, to be covered.For example, we have a site with 2 sectors, with a road in front it, to be covered.

, ., .We start the drive test from sector 1 to sector 2. While were on sector1 coverage, see if theWe start the drive test from sector 1 to sector 2. While were on sector1 coverage, see if theBCCH of serving cell is the correct one, according to the data we have.BCCH of serving cell is the correct one, according to the data we have.And do the opposite from sector 2 coverage to sector1And do the opposite from sector 2 coverage to sector1

sect1sect1sect2sect2


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4. Overshoot

When we get the signal from the site that not close to the current area drive test.When we get the signal from the site that not close to the current area drive test.

Usually we get bad RxQual and long TA.Usually we get bad RxQual and long TA.We can suspect this as a overshoot case. This case happen when a site/cell is serving farWe can suspect this as a overshoot case. This case happen when a site/cell is serving farawa from its area.awa from its area.


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GuidelinesGuidelines

Drive Test Types

1. Drive Test Continuous Route

Drive Test is walk/ drive along the route non stop

2. Hot Spots Measurement

-minutes but still recording.Usually for scanning frequency or to investigate more detailed network behaviour


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GuidelinesGuidelines

Drive Test Guideline

1. Preparation . , , ,

scenarios, sites data, knowing area we are heading.

2. Check ToolsBeside checking the tools completeness. Also check each tools if its working well, such asthe GPS, inverter, handset, including SIM card.

3. Some RulesAvoid to have the same route twice, or go on the same road twice.Beware of certain area, such as restricted area, one way street, traffic jam streets.

Create simple/effective way of scenarios, where to start until finishing the route.Make sure the roads on the route, can represent the whole network as samples.

4. Pay AttentionEven if were only collecting data, we must focus on our activity. Avoid the things that canmake us re-drive test , such as, data cable unplugged from its MS, forget to turn-off the GPRSmo e w en we on nee o measure, run ou a er es, orge o recor , orge

the purpose of the drive test, assure the data collected is right, pay attention of car speed,create notes for special event, etc.

5. Reporting and AnalysisTEMS can divided as two, data collection and anal sis. After drive test on the field, we mustprovide data to be analyze and reported. Make sure we can create a good report and analyzewell, by performing all of the points above.


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Reporting Guidelines

1. Drive test report basically can be divided as two: Plot and Statistic.

u e nesu e nes

BCCH: 59

logfile floor RxLevel Average % RxQual Data

= 0

BRI1 1 -65.12706271 93%

BRI2 2 -58.26292629 98%

BRI3 3 -57.53480663 87%

StatisticsStatistics

PlotPlot


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. ,reported. Such as how many ranges the treshold of RxLevel, and RxQual. The colorranges of SQI and FER, etc.

3. Export the right data for Plotting. To create Plot report, for example we need the logfileto be mapinfo files. Make sure we have TEMS 4 above, that can directly export the

logfile into mapinfo file. Or, if we have TEMS 3 below, make sure we have third-partysoftware that can create it, such as GIMS.


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4. For statistic report, usually we only need the excel file and some of mapinfo data.Each version of TEMS investigation can export the logfile into text file, *.fmt. Thisformat can open , and manage with Microsoft Excel.

Msid TIME FRAME POSITION MESSAGE TYPE HEXADECIMAL STRING

LAT LON

MS1 15:41.7 2609056 S 0000.0240 E 00000.0314 PAGING REQUEST TYPE 1 0F 0F 25 06 21 00 05 F4 30 A2 DB CC 2B 2B 2B 2B 2B 2B 2B 2B 2B 2B 2B 2B 2B

MS1 15:43.1 2609362 S 0000.0240 E 00000.0318 PAGING REQUEST TYPE 1 0F 0F 15 06 21 00 01 F0 2B 2B 2B 2B 2B 2B 2B 2B 2B 2B 2B 2B 2B 2B 2B 2B 2B

MS1 15:44.5 2609668 S 0000.0240 E 00000.0319 PAGING REQUEST TYPE 3 0F 0F 4D 06 24 00 30 C3 AC 76 30 C2 33 8E 30 C3 0F AF 30 C3 16 3E 83 2B 2B

MS1 15:45.9 2609975 S 0000.0240 E 00000.0322 PAGING REQUEST TYPE 1 0F 0F 41 06 21 00 05 F4 30 C3 9B 1A 17 05 F4 30 C3 AD 45 2B 2B 2B 2B 2B 2B

MS1 15:46.1 2610013 S 0000.0239 E 00000.0322 IDLE MODE REPORT 0E CF E2 00 0C D0 56 10 4D DA 0F CB D7 10 09 DA 0E 88 00 0F 46 80

5. Following the standard report of the customers.

MS1 15:47.3 2610281 S 0000.0239 E 00000.0327 PAGING REQUEST TYPE 1 0F 0F 25 06 21 00 05 F4 30 C2 D0 1B 2B 2B 2B 2B 2B 2B 2B 2B 2B 2B 2B 2B 2B


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Layer 3 MessagesLayer 3 Messages

-To Monitor the event and signaling sent and received by Phone- List Messages of event and signaling

-Often use in analysis, after Drive Test

completed

-Replay the logfile, click a point on theroute marker on map window,then see on layer 3 messages windows,

detailed information on theassociated messages appears in this window

-Can double-click each list message fromthat window to open a new windowdisplaying the full contents of the message.


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cann ng unc on ns ecann ng unc on ns e

TEMS Investigation supports scanning of radio frequency carriers (channels),usin either a ordinar TEMS mobile station or a dedicated fre uenc scanner mobilethe TEMS Scanner.

Scanning is handled from the Frequency Scanner window, and here the output ofthe scan is displayed, too


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BCCH BSIC Average Rx Level (dBm)

51 35 -104


- -

53 26 -110

54 - -114

55 - -105

- -

57 26 -111

58 - -114

59 - -115- -

61 - -111

62 - -113

63 - -115

- -

65 - -115

66 15 -110

67 - -114

- -

69 - -114

70 - -114


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Procedure:Procedure:

Selecting Channels

In the Frequency Scanner window, choose the unit to use as scanner in thecombo box.

Click the Measurement Settings button.The channel selection is handled from the Scanned channels tab:

Checking "Decode BSIC" causes the Base StationIdentity Code to be decoded. It will be shown in the

table to the right in the Frequency Scanner window


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Performin Scan

Scanning Function inside TEMSScanning Function inside TEMS

To start scanning, click the Start Scanning button.

While the scanning is going on, the status bar shows the padlock symbol , indicating that the scanner is busy.To stop scanning, click the Stop Scanning button.

resen ng can Bar Chart Line Chart Table


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After Process / Report

Scanning Function inside TEMSScanning Function inside TEMSBCCH BSIC Average Rx Level

(dBm)

51 35 -104

52 - -115

Plot

Directly capture Export to Mapinfo

-

54 - -114

55 - -105

56 - -115

Spreedsheet

Export to text (.fmt), open and process with Excel spreedsheet

-

58 - -114

59 - -115

60 - -115- -

62 - -113

63 - -115

64 - -115

- -

66 15 -110

67 - -114

68 - -114

- -

70 - -114


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HINTS for MS:HINTS for MS:

,, --calibratecalibrate

Calibration MSs cost almost the same price buy a new oneCalibration MSs cost almost the same price buy a new one

Ericsson only support 2 version below for reEricsson only support 2 version below for re--calibrate (eq : latest version is TEMS 7.0, means onlycalibrate (eq : latest version is TEMS 7.0, means only----

If MS not calibrated or buy a new one, it will impact into the measurement (such as RxLevel andIf MS not calibrated or buy a new one, it will impact into the measurement (such as RxLevel andRxQual) will reduced and not valid => KPI will not achivedRxQual) will reduced and not valid => KPI will not achived

TEMS always have bugs (even latest version) both coming from software or from type MS itself,TEMS always have bugs (even latest version) both coming from software or from type MS itself,need knowled e to antici ated it such as wron RxLevel recordedneed knowled e to antici ated it such as wron RxLevel recorded


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PC which use for TEMSPC which use for TEMS

HINTS for PC/Laptop:HINTS for PC/Laptop:

should turn off any usage ofshould turn off any usage of

COM, IR, bluetooth, WiCOM, IR, bluetooth, Wi--Fi,Fi,any accessories attached atany accessories attached atPC should be turn off, set PCPC should be turn off, set PCn o ax mum er ormancen o ax mum er ormanceat Control Panelat Control Panel--SystemSystem

Slow PC, low memory, lowSlow PC, low memory, low

HD capacity will make MSHD capacity will make MSdisconnected suddenly whendisconnected suddenly whenTEMS use for a long time,TEMS use for a long time,same things happened if thesame things happened if thebattery of PC/laptop is too hotbattery of PC/laptop is too hot

Turn off power saving featureTurn off power saving featurein the laptop/PCin the laptop/PC

Turn off screen saverTurn off screen saver

It would be better drive testIt would be better drive testlaptop is only for do drive testlaptop is only for do drive testnot for daily routinenot for daily routine


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ReferenceReference

Ericsson.com/temsEricsson.com/tems

Michael Pipikakis,Michael Pipikakis, Evaluating and Improving The Quality of Service of Second

Generation Cellular System, September,2004 TEMS Investigation 4.0 ManualTEMS Investigation 4.0 Manual

..

TEMS Investigation 7.0 Product DescriptionTEMS Investigation 7.0 Product Description


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