Drive Test Project_Mobile

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Drive test ProjectRomes V3.51

Date: Tuesday, October 10, 2010MOBILE & SATELLITE COMMUNICATION NETWORK

ECM716

PROF DR MAHMOOD ISMAIL


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PROJECT MEMBERS:

SUHANA SABUDIN : 2004202514

MOHAMAD YUSOF MAT ZAIN: 2009306149

NURULAZLINA RAMLI:200961663NURLIYANA HASHIM: 2009753115


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INTRODUCTION

Drive test was performed on 03-09-2010 to verify the CELCOM GSMcoverage on Shah Alam and Mutiara Subang Area

Drive test route: Mutiara Subang (Batu Tiga) to Section 7 via Federalhighway

Drive test analyses are based on the following

Call Setup procedure

Handover process

RxLevel

RxQuality

One Samsung Z105 mobile was being used with Long call (connectedmode using ROMES Drive Test).


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ROMES: HARDWARE

ROMES TERMINAL, DONGLE KEY, Z105 SAMSUNG TEST PHONE & GPS

GPS

Z105

SAMSUNG

ROMES

TERMINAL

DONGLE KEY


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GENERAL INFORMATION: [Measurement Info, Ver. 3.51 Rev. 2]

Date: 3.9.2010

Time: 11:37:41

Comment: Celcom GSM drive test is taken from Mutiara Subang to Sek 7 (UITM) via federal hiway.

Username: Suhana

Vehicle Name: NAZA CITRA

Vehicle ID: BJB 7200

Num of Blocks: 1

Duration: 00:39:54 (HH:MM:SS)

=======================================================

DRIVER :

NMEA : [GPS Ver 3.51]

Type: NMEA Device

Ellipsoid: WGS84

Nav.Proc.Version: not available

Sig.Proc.Version: not available Driven area: 3.078447 (Lat. up left)

101.491400 (Long. up left)

3.042903 (Lat. bottom right)

101.561257 (Long. bottom right)

[Z105 [1], Ver 3.51]

Type: Unknown with QC Chipset (Firmware SMP6200)

Net: GSM900/DCS1800

Meas. Mode: Normal

IMEI: 00246958


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ANALYSIS


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OUTGOING CALL PROCEDURE


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CALL SETUP PROCEDURE

Setup is part of the outgoing call procedure which contains of call type and B party BCD

Number. (Binary Code Decimal; BCD No in this case is 0173550576)


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1) Intra-cell handover

2) Inter-cell handover

3) Inter-BSC, Intra-MSC handover

4) Inter-MSC handover

Handover is a procedure for changing assignment of mobile station from one

BS to another BS for call continuity especially during mobility.

Theory: Handover and Types of

Handover


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BSC_source BSC_target Remark

11502 11502 Intra BSC --> BSC_old = BSC_new

11502 10901 Inter BSC --> BSC_old BSC_new

HANDOVER PROCEDURE:


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MEASUREMENT REPORT

Measurement report has been send from MS to Network for every 480ms


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ASSIGNMENT COMMAND

ASSIGNMENT COMMAND : This message is sent by the network to the mobile station to

change the channel configuration to another independent dedicated channel configuration.


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1. Principle parameter for handoff is measured signal strength and quality from mobile unit to BS

(Measurement Report)

2. BS averages the signal over a moving window to remove fluctuation

3. Compared with a threshold, HO_MARGIN

RxLev / RxQual RxLev / RxQual

HANDOVER DECISION: BSC


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HANDOVER COMMAND

This message is sent on the main DCCH by the network to the MS to change the

dedicated channel configuration, timing adjustment needed.


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HANDOVER COMPLETE

This message is sent on the main DCCH by the network to the MS to indicate that the

MS has established the main signaling link successfully.


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GSM HANDOVER VIEW

ROMES capable to provide the Handover Information of the Source and Target Cell of

the previous handover process.


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UMTS/GSM ETSI QoS View


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SA-T: Service Accessibility Telephony, ratio of the

number of successful call attempts (after

successful network access) to the total number of

call attempts is 1/12 = 8.33%

CCR-CS-T : Call Completion Rate Circuit Switched

Telephony, ratio of the number of intentionally

terminated calls to the number of successful callsis 100% which indicate 0% of Drop Call Rate. In

this case only 1 successful call is made.


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Drive Test was performed in 627.4secs and Handover Attempts is 45 with the

Successful Intracell HOs: 10 and Successful Intercell HOs: 35. The drop call rate of 0% is

reflected from the 100% handover success rate which provide call continuity during

mobility is in good condition.


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RX LEVEL DEDICATED

Rx level 0 to 63 is GSM unit. While -110 to -47 is dbm. Rxlevel unit of GSM. When we will

add 110 to Rxlevel [dbm],it will get convert into GSM unit 0 to 63.


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This RxQual Route Track displys information about the distribution ofRxQual values measured by the mobile phone and transferred to the test

system. In GSM networks the mobile provides a new RxQual value about every

480 ms.

RXQUAL: Description

RxQual Potential Speech Quality

0 Excellent

1 Excellent

2 Excellent

3 Excellent

4 Good

5 Good

6 Bad

7 Bad


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CONCLUSION

The RxLev and RxQual that has been captured fromthe drive test showed the coverage and quality ofCELCOM GSM network

The drop called does not appeared in this data

possibly because only one call has been madeduring the entire process of drive test.

However base on the overall result even thoughonly one successful call has been made by one MSbut its still can be consider as a representation

or scenario of the CELCOM GSM network in the drivetest area in Shah Alam.

Shah Alam can also be call one of CELCOMTERRITORYs.

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