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
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Jakarta BSC Border and cluster map
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DT Preparation----Test Route
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DT Preparation----Cluster map
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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
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Scanning & CW Test----GSM CW test Monitor
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Scanning & CW Test----WCDMA CW test
Page 31
Scanning & CW Test----WCDMA CW test Monitor
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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
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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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