Huawei - Drive Test Training

Drive test Training www.huawei.com

Date : 16th August 2011 Prepared by : GCI Team

HUAWEI TECHNOLOGIES CO., LTD.

Content

1

Over View

2

DT Preparation

3

DT test & scanning test & CW test

4

DT data process and analysis

5

Attentions

Page 2

Over View

Page 3

Over View

Page 4

Content

1

Over View

2

DT Preparation

3

DT test

4

DT data process and analysis

5

Attentions

Page 5

DT Preparation----Site and Map

1.Mapinfo tab (street, polygon) 2.Cluster border 3.Cell information (CELLID,BCCH, BSIC,LAC, Azimuth ,height , location) Page 6

DT preparation-- DCS Test methodology (updated at 2011.8.4) Laptop 1

Laptop 2

Laptop 3

MS1=Idle

RxLev

MS2=Long call 199

HOSR

MS3=EDGE UL

EDGE UL

MS1=Short Call 199

CSSR, CDR, RxQual

MS2=GPRS DL

GPRS DL

MS1=EDGE DL

EDGE DL

MS2=GPRS UL

GPRS UL

Scanner

RxLev

Laptop 4

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DT Preparation------ WCDMA Test methodology (update at 2011.8.4) Laptop 1

Voice CSSR,CDR

MS1=Voice short call MO MS2=Voice Short call MT

Laptop 2

MS3=PS Download

PS Download

MS1=Video Short Call MO

Video CSSR,CDR

MS2=Video short Call MT PS Upload

MS3=PS Upload Laptop 3

MS1=Voice long call MO

Voice SHOSR

MS2=Video long call MO

Video SHOSR

RSCP, EcIo

Scanner (PCTEL)

For Long call MT, (no connect to the laptop)

MS4=Voice long call MT MS5=Video long call MT Page 8

DT Preparation----AXIS SSV Test methodology Drive Test MS1=Idle (K800) Lock BCCH

RxLev

MS2=Long call 199 (K800) ----unlock BCCH

HOSR

Static Test

Mobile phone put on the back the front seat

Page 9

Jakarta BSC Border and cluster map

Page 10

DT Preparation----Test Route

Page 11

DT Preparation----Cluster map

Page 12

Content

1

Over View

2

DT Preparation

3

DT test

4

DT data process and analysis

5

Attentions

Page 13

DT---Hardware configuration Install Mobile phone driver and detect the hardware

Mobile phone setting

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DT---cell first and command sequence Input Cell file

Command sequence script

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DT---Lock on the specified channel (GSM) MS in Idle Mode

MS in Dedicated Mode

In dedicated mode, MS not handover to others

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DT---Lock on the specified channel (WCDMA) MS in cell reselection Mode

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DT---Focus on pad during test Main pad, Radio parameters, current channel, serving, events

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DT---Focus on pad during test Map and hopping channels information

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DT---Focus on pad during test L3 message information

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DT---Focus on pad during test L3 message information

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GSM Mo Flow chart

GSM MT Flow Chart

GSM Intra BSC Handover Flow chart

GPRS and EDGE

GPRS and EDGE

GPRS and E GDE Data Speed(kbps) 59.2

60.0

54.4

50.0

44.8

40.0 27.2

30.0

20.2

20.0 10.0 0.0

22.4

8.0

12.2

CS-1 CS-2

Speed(kbps) 8.0

12.2

14.4 8.8

11.2

13.6

17.6

CS-3 CS-4 MCS-1 MCS-2 MCS-3 MCS-4 MCS-5 MCS-6 MCS-7 MCS-8 MCS-9 14.4 20.2

8.8

11.2 13.6

17.6 22.4 27.2

44.8 54.4

59.2

4.check IMSI RF situation 1.Check the subscriber EcIo=? dB 1.2mbps

921kbps 600kbps 307kbps

153kbps

Scanning & CW Test----Hardware connection

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Scanning & CW Test----GSM CW test

Page 29

Scanning & CW Test----GSM CW test Monitor

Page 30

Scanning & CW Test----WCDMA CW test

Page 31

Scanning & CW Test----WCDMA CW test Monitor

Page 32

Content

1

Over View

2

DT Preparation

3

DT test

4

DT data process and analysis

5

Attentions

Page 33

Export file to tab mapinfo layer

Page 34

Export file to tab mapinfo layer Airport drive test (RxLevSub)

SATUMUARETMG3 have no neighbor with SOEWARNAMG1, we will create this neighbor.

Airport drive test (RxQualSub) After swap, SOEWARNAMD, upgrade capacity S322->S433, we will change handover strategy, make more easier HO to GSM900 strong signal.

2

1

3 After swap, it is use spit cell, S333->S444, increase capacity, we will make a flexible handover strategy. Page 35

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Export file to tab mapinfo layer • High TDR analysis - Map

SHERATONBDRMG3 57% TA>=4, wide coverage SHERATONBDRMG2 21% TA>=4, wide coverage SHERATONBDRMD3 Slow handoff from DCS1800 to GSM900…

STOJIACMG3: 35% TA=4, large coverage area. After SWAP, TOC power 1.3 db larger than NSN.

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High Way DT results (RxLev Sub (dBm) )  The signal is good and the RxLev Sub (dBm) is above -85dbm

site distribution is far here, and the height is low, nearest site PANTAIINDHUTMG height is 14 meters, some area in lower coverage

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High Way DT results ( RxQual Sub )  The quality is poor due to have two plot

form site rukosibalecmd3 to site pluitmasintcmd1 ,slow handoff ,make for quality poor

form site drsemerumd3 to site psjmbatanbsimd3 ,slow handoff ,make for quality poor

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总结一页 Area

ID CellName or Spot

description

Suggestion

Airport

1 STOJIACMG3

TDR>5%

35% TA=4, large coverage area. After SWAP, TOC power 1.3 db larger than NSN.

Airport Airport Airport

2 SHERATONBDRMG3 3 SHERATONBDRMG2 4 SHERATONBDRMD3

TDR>5% TDR>5% TDR>5%

57% TA>=4, wide coverage 21% TA>=4, wide coverage Slow handoff from DCS1800 to GSM900…

Airport

5 Spot 1

poor quality

After swap, SOEWARNAMD, upgrade capacity S322->S433, we will change handover strategy, make more easier HO to GSM900 strong signal.

Airport

6 Spot 2

poor quality

SATUMUARETMG3 have no neighbor with SOEWARNAMG1, we will create this neighbor.

Airport

7 Spot 3

poor quality

After swap, it is use spit cell, S333->S444, increase capacity, we will make a flexible handover strategy

Highway

1 RUKOSIBALECMD3

poor quality

form site rukosibalecmd3 to site pluitmasintcmd1 ,slow handoff, will optimization handover parameter

Highway

2 DRSEMERUMD3

poor quality

form site drsemerumd3 to site psjmbatanbsimd3 ,slow handoff, will optimization handover parameter

Page 39

1.

Background

there are two areas in cluster 306 in Poor coverage. Area A is between JE032 And JE034, it is blocked by small hill and Dense forest. Area B is between JE034 and JE015, the road is waving up and down, signal is Blocked by road and tree. Show the site map, terrain map and poor coverage area.

B A

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2.Site configuration and status Alarm: show the alarm information here

Power Level: show power level here RF Parameters: check the RNP value, check on site Sector

Azimuth(RNP )

Azimuth

Tilt(RNP)

Tilt

JE034GA

60

60

2

2

JE034GB

180

180

2

2

JE034GC

300

300

2

2 Page 41

3.Drive Test result In drive test (idle mode), the signal in this area is below -88 dBm, MS serving by JE032A(13121), the signal from JE034GC(13223) is very poor. this area is 1.6km from JE034GC, 3 km from JE032GA. show drive test result, rxlevel by idle mode!

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4. Analysis of poor coverage the attitude of site is 200 meters, and the obstacle is 240 meters or so, the poor coverage area is 170 meters, the signal is blocked by the obstacles (A&B&C). make a sketch of obstacle! Display attitude on the road!

Attitude value

hill s

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4. Analysis of poor coverage show the BCCH coverage, show the cells coverage area! .

JE034GC coverage

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4. Analysis of poor coverage show the Terrain profile from site to poor coverage area!

hills

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4. Analysis of poor coverage 【 show picture of obstacle 】 1. picture from JE034 to hill A 2. picture from road to hill C 3. picture from road to hill B

2 3

1

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4. Analysis of poor coverage 【 picture on tower 】 1. picture from JE034 to hill A Hill B Hill A

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4. Analysis of poor coverage 【 picture on road 】 1. picture from JE034 to hill A

Hill A

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4. Analysis of poor coverage 【 picture on road 】 2. picture from road to hill C

Hill C

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5. Conclusion poor coverage is caused by: √ obstacle □ Hardware problem □ Power Parameter configuration problem □ RF parameter (Antenna Height, Azimuth, DownTilt) □ Neighbor List problem 1.interference, quality and C/I bad 2.slow handoff 3.overshooting 4.NCC+BCC, Training serial number

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Content

1

Over View

2

DT Preparation

3

DT test

4

DT data process and analysis

5

Attentions

Page 51

attentions 1.Before drive test, make sure the task first….make sure everything is ready, such as tools, map, route, export report template 2.During drive test, make sure all the tools is working well. On field engineer familiar with the KPI (RxLevl, RxQual,TA,C/I,serving cell) and events (access failure, call drop, download throughput, upload throughput)….. 3.After drive test, finished the report as soon as possible

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Thank You

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