Huawei ActixOne_20110530-Use Case V3.pdf

7/27/2019 Huawei ActixOne_20110530-Use Case V3.pdf

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ActixOne For Huawei



2

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



3

Consolidated use caserequested by Huawei onsite



5

• Problem Investigation – Network Event Overview (WCDMA)

Call Setup

Failures result

categorize by

diagnosis

Call Setup Failures

result broken down

by region



6

• Network Optimization - Drop calls location, BSC

identification



7

• Problem Investigation - ActiveSetRSCP0> -95

Plots of Entire

Network Area of

Jakarta



8

• Problem Investigation - ActiveSetEcNo0> -15

Plots of Entire

Network Area of

Jakarta



9

• Problem Investigation - TrCHDownlinkBlerAgg<5

Plots of Entire

Network Area of

Jakarta



10

• Network Optimization – Over-shooter: Radio Network

Analysis, providing over-shooter (Exceeding planned coveragearea) detection



11

• UMTS Overshooter cell



12

• Network Optimization – Cross-feeder: Radio Network

Analysis, providing cross-feeder detection



13

• Network Optimization – Pilot Pollution: Radio Network

Analysis, Pilot Pollution detection



14

• Network Optimization – Pilot Pollution: Radio Network

Analysis, details on individual sector’s Pilot Pollution



15

• Network Optimization – Missing Neighbors: Radio

Network Analysis, UMTS neighbour Analysis (Scanner based)



16

• UMTS Missing Neighbours



17


No 3G relations

defined, engineers

highlighted this is

likely to be under

swapped (Not

completed yet)



18


Only 2G neighbors

relations exists



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21




22


Possible

Neighbor

removal –

6.4km



23

• Locating Scrambling Code re-use



24

• Locating repeated WCDMA_CI



25

• 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



26

• Network Optimization - 2G Drop Call Analysis: 2G DropCall drilldown, diagnosis - Interference

Drop call

summary,analysis and

diagnosis



27

• 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



28

• Network Optimization - 2G Drop Call Analysis: Period of poor ServRxQualSub prior to drop call



29

• 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



31

• Network Optimization - 3G Drop Call Analysis: 3G DropCall Drilldown



32

• 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


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




- . . . . . . . .cpich-Ec-N0: 22 (-13.50 dB)- . . . . . . . .cpich-RSCP: 28 (-88.0 dBm)

026176 4:34:19:980 UL-DCCH

MeasurementReport


- . . . . . .eventID: 3 ( e1d)

- . . . . . .cellMeasurementEventResults:-

fdd

- . . . . . . .fdd [ 0 ]

- . . . . . . . .primaryScramblingCode:

47

.eventResults:-

intraFreqEventResults

- . . . . . .eventID: 2 ( e1c)

-

. . . . . .cellMeasurementE

ventResults:- fdd

- . . . . . . .fdd [ 0 ]

-

. . . . . . . .primaryScra

mblingCode: 47- . . . . . . .fdd [ 1 ]

-


mblingCode: 89

- . . . . . . .fdd [ 2 ]

-


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 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 ulInitSirTargetSrb 57



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• Network Optimization – 3G Drop Call Analysis: Line chartindicating high UETxPower and SIR exceeding typical networksettings



41

• 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)



42

Handover Attempt Fail

Long periodof quality

issues

before drop

• Network Optimisation – GSM Drop Call Analysis



44

• Network Optimization - UMTS Drop Call Analysis

Drive Test Data

summary



45


Automated

analysis and

diagnosis



46




47


Line charts of

different RF

parameters

before drop



48



Uu_RRC: UL_DCCH_Message

- . ………………..




- . . . . . . . .cpich-Ec-N0: 16 (-16.50 dB)

- . . . . . . . .cpich-RSCP: 22 (-94.0 dBm)


- . . . . . .cellSynchronisationInfo



- . . . . . . . . . .countC-SFN-High: 5- . . . . . . . . . .off: 2

- . . . . . . . . .tm: 13321




- . . . . . . . .cpich-Ec-N0: 6 (-21.50 dB)

- . . . . . . . .cpich-RSCP: 16 (-100.0 dBm)


- . . . . . .cellSynchronisationInfo



- . . . . . . . . . .countC-SFN-High: 3

- . . . . . . . . . .off: 166- . . . . . . . . .tm: 15056




- . . . . . . . .cpich-Ec-N0: 0 (-24.50 dB)

- . . . . . . . .cpich-RSCP: 11 (-105.0 dBm)


- . . . . . .eventID: 3 ( e1d)

- . . . . . .cellMeasurementEventResults:- fdd

- . . . . . . .fdd [ 0 ]

- . . . . . . . .primaryScramblingCode: 312

Layer 3 details

Bar chart



49


Displaying

neighbor

relations



50


Key events

before drop –

Too Many Server



51


Site data on

same map view

as drive test data



52


Using GoogleEarth to

understand

terrain around

drop call



53


Sectors with Antennaplacement possibly

blocking coverage



54


Too Many Servers Eventpegging – No Dominant Cell



55


Possible block

on target cell



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• Network Optimization - GSM Drop Call Analysis

Extended

period of

quality issue

Extended

period of

quality issue



59


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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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



61


Co-BCCH in

coverage area,

will result in

quality issue

along this drive

route



62


Co-BCCH in

coverage area,

will result in

quality issue

along this drive

route



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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

http://10.5.94.20/ActixOne/

http://222.165.218.87/ActixOne/

http://localhost/var/www/apps/conversion/tmp/scratch_4//10.5.94.22/DriveTestLandingZone






http://222.165.218.87/ActixOne/

http://10.5.94.20/ActixOne/



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• Network Optimisation - 3G Drop Call Drilldown, TypicalULSIR network settings

ULSIRTarget 4.9-8.2db



PowerControl=1 dlInitSirTarget 41

PowerControl=1 ulInitSirTargetEdch 30

PowerControl=1 ulInitSirTargetEdchTti2 70

PowerControl=1 ulInitSirTargetExtraHigh 92



PowerControl=1 ulInitSirTargetSrb 57



• Neighbour Lists Analysis

Huawei ActixOne_20110530-Use Case V3.pdf

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Transcript of Huawei ActixOne_20110530-Use Case V3.pdf