wcdma-drive-test-procedure.pptx

7/29/2019 Wcdma-Drive-Test-Procedure.pptx

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WCDMA

DRIVE TESTPROCEDURE

PREPARED BY-

GAURAV JAIN


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STEPS FOR INSTALLING TEMS 9.1 SOFTWARE

1-First install .Net 3 and .net 3.5 in your PC

9.1

2-Now install TEMS 9.1


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3-After installing TEMS, install the driver of Dongle,

Mobile phone, and GPS Beffo cable by connectingthe equipment in different ports.

Dongle driver is automatically install in your PC just

when you connect in your PC.

But for Mobile and Beffo cable driver, you have to

give the path of the driver.


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C:\Program Files\Ericsson\TEMS Products\TEMS

Investigation\ApplicationFolder.

5-Now open the TEMS window from.

My Documents\TEMS Product Files\TEMS

Investigation 9.1\Workspaces.

In workspaces folder you have to open Investigation

WCDMA GSM.

4-Afterinstalling device drivers, Copy and Paste abovepatch files in


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For 2G InvestigationYou have to open 4 windows..

1-GSM radio parameter

2-GSM current channel

3-GSM serving+Neighbour

4-Events

First 3 windows is open from above toolbar

Presentation-GSM

And last window is open from

Presentation-Signalling-Event

Now connect the device by pressing the Greenbutton(Connect all) or by pressing F2 button


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Investigation


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For Investigation WCDMA(3G) and

GSM(2G) both i.e in Dual mode

Along with 4 window of GSM you have to open 3 windowmore and they are....

1-HSDPA analysis

2-WCDMA radio parameter

3-WCDMA Serving/Active+Neighbrs

The 1st window i.e HSDPA analysis is used only for

data call..And remaining 2 is used for WCDMA analysis.


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The above window shows that you are latch in 3G network

During 3G network all the parameters in the 2G window are


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INTRODUCTIONW CDMA Means Wideband Code DivisionMultiple Access.

Wideband Code Division Multiple Access is aCDMA channel that is four times wider than thecurrent channels that are typically used in 2Gnetworks.

Wideband CDMA has a bandwidth of 5 MHz or

more .It is also called 3G system, allow for faster datatransfer than GPRS and EDGE and also let youtalk while you transfer data .


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LOGICAL CHANNELSThere are three available common control channels

Broadcast control channel (BCCH) Paging channel (PCH)

Forward access channel (FACH)

Broadcast control channel (BCCH) carries system and cell

specific information.

Paging channel (PCH) for messages to the mobiles in the

paging area.

Forward access channel (FACH) for massages from the base

station to the mobile in one cell.

In addition, there are two dedicated channels Dedicated control channel (DCCH) covers the two dedicated

control channel stand-alone dedicated channel (SDCCH) and

associated control channel (ACCH).

Dedicated traffic channel (DTCH) for point-to-point data

transmission in the uplink and downlink.


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UPGRADE GSM TO WCDMA

The figure shows how a GSM system can be upgraded to offerWCDMA services. This diagram shows that 2 or more GSMchannels are typically removed, replaced, or upgraded to have

WCDMA modulation and transmission capability


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DRIVE TESTData Collection Requirements

Processor and RAM requirements are strongly dependent onwhat external devices are connected and what tasks they

perform. Two examples of recommended configurations are

given here.

One phone with default logs enabled (where applicable) andone GPS: 1.0 GHz Pentium class processor, 512 MB RAM

Multiple phones with default logs enabled (and at most two

phones engaging in data service testing), one scanner, and

one GPS: 2.0 GHz Pentium class processor, 1 GB RAM

Other hardware requirements:

USB port for PCTel SeeGull LX Tri-band scanner

USB port for HASP HL hardware key

Serial port for PCTel SeeGull LX dual-band/single-band scanner(whether WCDMA or GSM)


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WINDOW USED IN WCDMA

DRIVE TEST


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WCDMA RADIO PARAMETERS

This windows shows the Radio Parameters ofWCDMA


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WCDMA SERVING/ACTIVE

SET + NEIGHOURS

This windows shows the Serving cell &Neighbors

AS : Active Set

MN: Monitered Neighbors


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HSDPA TESTING

It shows the Speed of

HSDPA

We consider Same window

of HSUPA Analysis for the

Speed Testing of HSUPA


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SERVER

We find out the Accurate Average Speed of

HSDPA/ HSUPA through out the FTP

TESTING


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TESTING


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We also check the speed of HSDPA/HSUPA

through NetPerSec, for this we check Current

speed Average speed and Maximum speed of

HSDPA

HSDPA/HSUPA TESTING


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RETU(REMOTE ELECTRICAL TILT

UNIT)Two Cables are connected in RETU

Dx1 Cable

Tilt Monitor Cable

RET Unit is monitered from RNC to maximize or

minimize Electrical Tilt.Minimum tilt should be 0 & Maximum tilt should be 10

We have also update the type of antenna in RNC

i.e. single band, dual band or tri band antenna.

Also one Power Switch is in RET Unit.

Upper press is ON & Down Press is OFF


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UNIT)

H d i UMTS


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Handover in UMTS or

WCDMA

There are 3 basic types of handoverIntra frequency handovers

Handovers between 2 UMTS carriers at the

same frequency

These can be soft handoversInter frequency handovers

Handovers between 2 UMTS carriers at

different frequencies

These are hard handovers

Inter system handoversHandovers between UMTS and GSM carriers

These are hard handovers

These Handover also knows as IRAT

Handover


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Notes on Quantities Denoting

Signal Power


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THANK YOU