Huawei ActixOne_20110530-Use Case V3.pdf
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Transcript of Huawei ActixOne_20110530-Use Case V3.pdf
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+861063107806 : [email protected]
ActixOne For Huawei
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ActixOne For Huawei
• Use Case
– Problem Investigation
• Network Event Overview
• Drop Call Location, BSC border
• Plots for entire network area of Jakarta
– Network Optimization
• Over-shooter
• Cross-Feeder
• Pilot Pollution
• Missing Neighbors Analysis
• (2G&3G detail drilldown) including Google Earth view foradditional terrain information
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Consolidated use caserequested by Huawei onsite
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• Problem Investigation – Network Event Overview (WCDMA)
Call Setup
Failures result
categorize by
diagnosis
Call Setup Failures
result broken down
by region
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• Network Optimization - Drop calls location, BSC
identification
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• Problem Investigation - ActiveSetRSCP0> -95
Plots of Entire
Network Area of
Jakarta
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• Problem Investigation - ActiveSetEcNo0> -15
Plots of Entire
Network Area of
Jakarta
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• Problem Investigation - TrCHDownlinkBlerAgg<5
Plots of Entire
Network Area of
Jakarta
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• Network Optimization – Over-shooter: Radio Network
Analysis, providing over-shooter (Exceeding planned coveragearea) detection
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• UMTS Overshooter cell
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• Network Optimization – Cross-feeder: Radio Network
Analysis, providing cross-feeder detection
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• Network Optimization – Pilot Pollution: Radio Network
Analysis, Pilot Pollution detection
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• Network Optimization – Pilot Pollution: Radio Network
Analysis, details on individual sector’s Pilot Pollution
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• Network Optimization – Missing Neighbors: Radio
Network Analysis, UMTS neighbour Analysis (Scanner based)
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• UMTS Missing Neighbours
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• UMTS Missing Neighbours
No 3G relations
defined, engineers
highlighted this is
likely to be under
swapped (Not
completed yet)
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• UMTS Missing Neighbours
Only 2G neighbors
relations exists
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• UMTS Missing Neighbours
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• UMTS Missing Neighbours
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• UMTS Missing Neighbours
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• UMTS Missing Neighbours
Possible
Neighbor
removal –
6.4km
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• Locating Scrambling Code re-use
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• Locating repeated WCDMA_CI
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• Network Optimization - 2G Drop Call Analysis: Taskselection (2G Drop Call), Diagnosis distribution chart
Drop call
summary by
diagnosis and
serving sector
Drop call
summary by
diagnosisDrop call
location
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• Network Optimization - 2G Drop Call Analysis: 2G DropCall drilldown, diagnosis - Interference
Drop call
summary,analysis and
diagnosis
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• Network Optimization – 2G Drop Call Analysis: 2G Dropcall, extended period of poor ServRxQualSub
Line Chart of RF
parameters
Bar Chart,
channel info and
RF parameters
for Replay
Replay with
Layer 3 details
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• Network Optimization - 2G Drop Call Analysis: Period of poor ServRxQualSub prior to drop call
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• Network Optimization – 2G Drop Call Analysis: terrainview of drop call due to handover issue (Driven into high-raisebuilding areas). Google Earth view
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• Network Optimization – 3G Drop Call Analysis: Taskselection (3G Drop Call), Diagnosis distribution chart
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• Network Optimization - 3G Drop Call Analysis: 3G DropCall Drilldown
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• Network Optimization - 3G Drop Call Analysis: CallMessage details extracted in replay\drill-down mode
026176 4:34:19:980 UL-DCCH
MeasurementReport
- . . . .eventResults:- intraFreqEventResults
- . . . . . .eventID: 3 ( e1d)
- . . . . . .cellMeasurementEventResults:- fdd
- . . . . . . .fdd [ 0 ]
- . . . . . . . .primaryScramblingCode: 47
026392 4:34:24:920 UL-DCCH MeasurementReport
Uu_RRC: UL_DCCH_Message- . .integrityCheckInfo
- . . .messageAuthenticationCode: 1009049814
- . . .rrc-MessageSequenceNumber: 15
- . .message:- measurementReport
- . . . .measurementIdentity: 1
- . . . .measuredResults:-
intraFreqMeasuredResultsList
- . . . . .intraFreqMeasuredResultsList [ 0 ]
- . . . . . .cellSynchronisationInfo- . . . . . . .modeSpecificInfo:- fdd
- . . . . . . . . .countC-SFN-Frame-difference- . . . . . . . . . .countC-SFN-High: 14
- . . . . . . . . . .off: 148
- . . . . . . . . .tm: 7432
- . . . . . .modeSpecificInfo:- fdd
- . . . . . . . .primaryCPICH-Info
- . . . . . . . . .primaryScramblingCode: 47
- . . . . . . . .cpich-Ec-N0: 22 (-13.50 dB)
- . . . . . . . .cpich-RSCP: 28 (-88.0 dBm)
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• Event 1d
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• Network Optimization - 3G Drop Call Analysis: CallMessage details extracted in replay\drill-down mode with Chartstracking RF performance
026392 4:34:24:920 UL-DCCH MeasurementReport
Uu_RRC: UL_DCCH_Message
- . .integrityCheckInfo
- . . .messageAuthenticationCode: 1009049814
- . . .rrc-MessageSequenceNumber: 15
- . .message:- measurementReport
- . . . .measurementIdentity: 1
- . . . .measuredResults:-intraFreqMeasuredResultsList
- . . . . .intraFreqMeasuredResultsList [ 0 ]- . . . . . .cellSynchronisationInfo
- . . . . . . .modeSpecificInfo:- fdd
- . . . . . . . . .countC-SFN-Frame-difference
- . . . . . . . . . .countC-SFN-High: 14
- . . . . . . . . . .off: 148
- . . . . . . . . .tm: 7432
- . . . . . .modeSpecificInfo:- fdd
- . . . . . . . .primaryCPICH-Info
- . . . . . . . . .primaryScramblingCode: 47
- . . . . . . . .cpich-Ec-N0: 22 (-13.50 dB)- . . . . . . . .cpich-RSCP: 28 (-88.0 dBm)
026176 4:34:19:980 UL-DCCH
MeasurementReport
- . . . .eventResults:- intraFreqEventResults
- . . . . . .eventID: 3 ( e1d)
- . . . . . .cellMeasurementEventResults:-
fdd
- . . . . . . .fdd [ 0 ]
- . . . . . . . .primaryScramblingCode:
47
.eventResults:-
intraFreqEventResults
- . . . . . .eventID: 2 ( e1c)
-
. . . . . .cellMeasurementE
ventResults:- fdd
- . . . . . . .fdd [ 0 ]
-
. . . . . . . .primaryScra
mblingCode: 47- . . . . . . .fdd [ 1 ]
-
. . . . . . . .primaryScra
mblingCode: 89
- . . . . . . .fdd [ 2 ]
-
. . . . . . . .primaryScra
mblingCode: 435
- . . . . . . .fdd [ 3 ]
- . . . . . . . .
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• Event 1c
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• Network Optimization – 3G Drop Call Analysis: DrilldownMode, providing replay, message details, drop location, chartsand SC monitoring
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• Network Optimization - 3G Drop Call Analysis: 3G DropCall Drilldown
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• Network Optimization - 3G Drop Call Analysis: 3G DropCall Drilldown
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• Network Optimization - 3G Drop Call Drilldown, TypicalULSIR network settings
ULSIRTarget 4.9-8.2db
PowerControl=1 ulInitSirTargetHigh 82
PowerControl=1 ulInitSirTargetLow 49
PowerControl=1 dlInitSirTarget 41
PowerControl=1 ulInitSirTargetEdch 30PowerControl=1 ulInitSirTargetEdchTti2 70
PowerControl=1 ulInitSirTargetExtraHigh 92
PowerControl=1 ulInitSirTargetHigh 82
PowerControl=1 ulInitSirTargetLow 49
PowerControl=1 ulInitSirTargetSrb 57
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• Network Optimization – 3G Drop Call Analysis: Line chartindicating high UETxPower and SIR exceeding typical networksettings
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• GSM C/I
The carrier to interference ratios for co- and adjacent
channels are specified as :
C/I = 9dB minimum (co-channel)
C/I = -9dB minimum (adjacent channel)
The definition for co-channel interference in GSM system is
that a cell on the same channel can cause interference, if
the serving cells signal level is only 9dB higher than the
interfering signal. For adjacent channels, interference can
be caused if the neighbouring cells signal level is 9dB
higher than the serving cell. Due to fading an additional 12
dB margin has been added to support good quality call:-
C/I = 21 dB (co-channel)
C/I = 3 dB (adjacent channel)
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Handover Attempt Fail
Long periodof quality
issues
before drop
• Network Optimisation – GSM Drop Call Analysis
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• Network Optimization - UMTS Drop Call Analysis
Drive Test Data
summary
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• Network Optimization - UMTS Drop Call Analysis
Automated
analysis and
diagnosis
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• Network Optimization - UMTS Drop Call Analysis
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• Network Optimization - UMTS Drop Call Analysis
Line charts of
different RF
parameters
before drop
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• Network Optimization - UMTS Drop Call Analysis
004811 17:38:05:890 UL-DCCH MeasurementReport
Uu_RRC: UL_DCCH_Message
- . ………………..
- . . . . . .modeSpecificInfo:- fdd
- . . . . . . . .primaryCPICH-Info
- . . . . . . . . .primaryScramblingCode: 334
- . . . . . . . .cpich-Ec-N0: 16 (-16.50 dB)
- . . . . . . . .cpich-RSCP: 22 (-94.0 dBm)
- . . . . .intraFreqMeasuredResultsList [ 1 ]
- . . . . . .cellSynchronisationInfo
- . . . . . . .modeSpecificInfo:- fdd
- . . . . . . . . .countC-SFN-Frame-difference
- . . . . . . . . . .countC-SFN-High: 5- . . . . . . . . . .off: 2
- . . . . . . . . .tm: 13321
- . . . . . .modeSpecificInfo:- fdd
- . . . . . . . .primaryCPICH-Info
- . . . . . . . . .primaryScramblingCode: 190
- . . . . . . . .cpich-Ec-N0: 6 (-21.50 dB)
- . . . . . . . .cpich-RSCP: 16 (-100.0 dBm)
- . . . . .intraFreqMeasuredResultsList [ 2 ]
- . . . . . .cellSynchronisationInfo
- . . . . . . .modeSpecificInfo:- fdd
- . . . . . . . . .countC-SFN-Frame-difference
- . . . . . . . . . .countC-SFN-High: 3
- . . . . . . . . . .off: 166- . . . . . . . . .tm: 15056
- . . . . . .modeSpecificInfo:- fdd
- . . . . . . . .primaryCPICH-Info
- . . . . . . . . .primaryScramblingCode: 266
- . . . . . . . .cpich-Ec-N0: 0 (-24.50 dB)
- . . . . . . . .cpich-RSCP: 11 (-105.0 dBm)
- . . . .eventResults:- intraFreqEventResults
- . . . . . .eventID: 3 ( e1d)
- . . . . . .cellMeasurementEventResults:- fdd
- . . . . . . .fdd [ 0 ]
- . . . . . . . .primaryScramblingCode: 312
Layer 3 details
Bar chart
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• Network Optimization - UMTS Drop Call Analysis
Displaying
neighbor
relations
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• Network Optimization - UMTS Drop Call Analysis
Key events
before drop –
Too Many Server
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• Network Optimization - UMTS Drop Call Analysis
Site data on
same map view
as drive test data
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• Network Optimization - UMTS Drop Call Analysis
Using GoogleEarth to
understand
terrain around
drop call
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• Network Optimization - UMTS Drop Call Analysis
Sectors with Antennaplacement possibly
blocking coverage
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• Network Optimization - UMTS Drop Call Analysis
Too Many Servers Eventpegging – No Dominant Cell
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• Network Optimization - UMTS Drop Call Analysis
Possible block
on target cell
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• Network Optimization - UMTS Drop Call Analysis
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• Network Optimization - UMTS Drop Call Analysis
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• Network Optimization - GSM Drop Call Analysis
Extended
period of
quality issue
Extended
period of
quality issue
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• Network Optimization - GSM Drop Call Analysis
1. Cell 2555 where the call hasdropped , besides the extended
poor quality before drop, there is
only 1 way neighbor relation with
cell 25363 (Which is directly in
line of sight at drop call
2. Cell 2555 cannot hand over to
cell 2536
Serving cell 2555 only has
1 way incoming neighbor
relation with Cell 2536
which is directly in line of
sight of drop call, cell
2555 cannot handover to
2536
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• Network Optimization - GSM Drop Call Analysis
Co-BCCH in
coverage area,
will result in
quality issue
along this drive
route
Adjacent
BCCH, quality
issue with 2nd
best neighbor,
target for
handover
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• Network Optimization - GSM Drop Call Analysis
Co-BCCH in
coverage area,
will result in
quality issue
along this drive
route
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• Network Optimization - GSM Drop Call Analysis
Co-BCCH in
coverage area,
will result in
quality issue
along this drive
route
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• Network Optimization - GSM Drop Call Analysis
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Objectives• http://10.5.94.20/ActixOne/ - Internal Access
• http://222.165.218.87/ActixOne/ - External Access
• \\10.5.94.22\DriveTestLandingZone - Load File
• user01/user01, user02/user02,
• user03/user03, user0X/user0X
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• Network Optimisation - 3G Drop Call Drilldown, TypicalULSIR network settings
ULSIRTarget 4.9-8.2db
PowerControl=1 ulInitSirTargetHigh 82
PowerControl=1 ulInitSirTargetLow 49
PowerControl=1 dlInitSirTarget 41
PowerControl=1 ulInitSirTargetEdch 30
PowerControl=1 ulInitSirTargetEdchTti2 70
PowerControl=1 ulInitSirTargetExtraHigh 92
PowerControl=1 ulInitSirTargetHigh 82
PowerControl=1 ulInitSirTargetLow 49
PowerControl=1 ulInitSirTargetSrb 57
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• Neighbour Lists Analysis