WAC_PFL ID_Traffic Sharing U900-U2100

7/25/2019 WAC_PFL ID_Traffic Sharing U900-U2100

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Ooredoo project Learning


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HSPA Accessibility degraded due to HW load


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HSPA Accessibility Improvement

Issue:

HSPA Accessibility degraded due to BTS & Max User failures

Observations:

Major reasons identified from OSS stats

1. Traffic imbalance between U900 & U2100. Impacting U2100 SU utilization >=100%

2. FBBA upgrade is delayed

Action Performed:1. PFLSettings changes implemented

2. U900 CellWeightForHSDPALayering increased from 60 to 80.

3. HOPIID changed (removed bias towards U2100)

Points to be noted:

Settings may further degraded the KPI if implemented n interfered environment

Post these settings U900 base band utilization increased by ~~20 . Settings are preferable if the current U900 utilization

ADJIQ0oOffset2 tuning need to be considered where U900 utilization is in between 65 to 75

LaySelWeightLoad LaySelWeightPrefLayer Remark

Pre

80 100 U900

100 1000 U2100

100 1000 U2100

Post

10 1000 U900

10 1000 U2100

10 1000 U2100


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Improvements:Base band utilization:U2100 base band utilization reduced & U900 utilization increased

HSPA Accessibility:Improved (BTS failures reduced & Max User Failures eliminated)

IFHO SR:U2100 IFHO improved & U900 is maintainedAvg End User HSDPA Thp:Is improved in U2100 & Maintained in U900

HSDPA SCC is improved

Rest of the KPI maintains the trend.

Cluster PS (HS) SR is in improving trend from 97% to 99.5%

Post parameter change U2100 busy hour base band utilization reduced and U900 utilization increased


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HSPA Accessibility is improved post parameter change


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U2100 HSDPA Setup Failures due to BTS reduced & Max users failures eliminated


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U2100 HSDPA Setup Failures due to BTS reduced


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U2100 CSSR, CS & PS- Improved

U2100 HSDPA SCC: Improved U2100 IFHO, NRT: Improved


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Cluster level PS (HS) SR is improved from 97% to 99.5%


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Rural Area Customer Coverage Experience Improvement

Issue:

Rural area majority of the camping on U2100 compared to U900

Observations:

Major reasons identified

1. Current network strategy is biased towards U2100

Action Performed:

1. PFLSettings changes implemented

2. HOPIID changed (removed bias towards U2100)

LaySelWeightLoad LaySelWeightPrefLayer Remark

Pre

80 100 U900

100 1000 U2100

100 1000 U2100

Post

10 1000 U900

10 1000 U2100

10 1000 U2100


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OML_AY_CL8_ Short Call Dual Mode RSCP

Area1

Area2

RSCP samples improved in 0 to -85 dBm bucket after new strategy


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OML_AY_CL8_ Short Call Dual Mode EcNo

Area1

Area2

EcIo samples improved in 0 to -6 dB bucket after new strategy


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OML_AY_CL8_ Short Call Dual Mode Plot

U9

inc

11

aft

str

im


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OML_AY_CL8_ Long Call Dual Mode RSCP

Area1

Area2

RSCP samples improved in 0 to -85 dBm bucket after new strategy


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OML_AY_CL8_ Long Call Dual Mode EcNo

Area1

Area2



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OML_AY_CL8_ Long Call Dual Mode EcNo


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OML_AY_CL8_ DATA DL Dual Mode RSCP

Area1

Area2

CQI >= 20 samples are consistent in both strategy


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OML_AY_CL8_ DATA DL Dual Mode EcNo

Area1

Area2



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OML_AY_CL8_ DATA DL Dual Mode

U

in

4

as

im


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OML_AY_CL8_ DATA DL Dual Mode EcNo

UE VOICE

No. KPI Items UE Voice dual Before UE V

1 CPICH RSCP

RSCP SAMPLE COUNT PDF RSCP

Max => -76 1903 36.94% Max => -76

-76> x => -85 1804 35.02% -76> x => -85

-85> x => -91876

17.01% -85> x => -91

-91> x => -100 485 9.42% -91> x => -100

Min < -100 83 1.61% Min < -100

2 CPICH Ec/Io

Ec/Io SAMPLE COUNT PDF Ec/Io

Max => -6 622 12.08% Max => -6

-6> x => -12 4456 86.51% -6> x => -12

-12> x => -15 69 1.34% -12> x => -15

-15> x => -18 4 0.08% -15> x => -18

Min < -18 0 0.00% Min < -18

3 Pilot Pollution Rate (> 4 Pilots) 0.13%(6/4654) 0.0

4 BLER (Average of =3.8) 3.79 6

Voice Call Setup Success Rate (>=98%) 100%(91/91) 100

7 Voice Call Drop Rate (


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OML_AY_CL8_ KPI Statastics

No. KPI Items DLDUAL Before DLDUAL After

1 BLER (Average of =20) (>=90%) 99.37%(4098/4124) 99.41%(6362/6400)

3 Data Services CSSR (>= 99.00 %) 100%(96/96) 100%(160/160)

4 PS Call Drop Rate (=4 Mbps) 4.39 Mbps 4.96 Mbps

No degradation seen in DL DATA Dual Mode stats


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DT KPI Summary:

Dual mode UE camping in U900 is increased.

RSCP samples in 0 to -85dBm bucket improved

EcNo samples in 0 to -6 dB samples improved

No degradation seen in any KPI

DL DATA KPI maintains the trend

OSS KPI Summary:

CS & PS CSSR is improved

U900 sites BB Utilization increased by ~~20%

HSPA accessibility & SCC degradation shifted from U2100 to U900 (AdjiQoOffset2 fu

may help in this case)CS Traffic moved from U2100 sites to U900

No degradation seen in any KPI


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KPI Summary



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HSDPA Accessibility & Retainability


HSDP

Max u

from A

U900

maint

HSDPImpro


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HSUPA Accessibility & Retainability


HSUP

Max u

from A

U900

maint

HSDPImpro


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RCS Traffic & RAB SR, Voice


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HSPA Data Volume, RNC

U2100 HSDPA Setup Failures due to BTS reduced & Max users failures eliminated


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MEH Triggered Duration

MEH trigger shifted from AYW5031_U2100 to AYW5031_U900. AYW5024 is not affected

AYW5031 BB Utilization is reaching 100%. Approx 20% increased in U900 utilization

Activities carried for DT & OSS KPI Improvement


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1. Proper Physical Optimization based on Initial drive

2. Regular neighbour audits

3. Identifying Worst KPI Offenders in cluster and more focus on improving them

4. Mapping KPI with PRACH distribution & perform physical and neighbour optimization


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WAC_PFL ID_Traffic Sharing U900-U2100

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