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Leading SON Solutions
3G xParameters
Mobily - KSA
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Optimi Corporation | February 2010 | CUSTOMER CONFIDENTIAL
Summary
RNC 14 has been selected for optimization withxParameters
Results shown in the next slides are still preliminary
as only 4 iterations (out of 12-15) have been
implemented
Legend:
Yellow bars: weekend
Vertical black line: iteration day
2
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Optimi Corporation | February 2010 | CUSTOMER CONFIDENTIAL
RNC 14 Geographical Location
3
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HSDPA Traffic Volume (GBit)
4
5500
6000
6500
7000
7500
8000
2/1/2011
2/2/2011
2/3/2011
2/4/2011
2/5/2011
2/6/2011
2/7/2011
2/8/2011
2/9/2011
2/10/2011
2/11/2011
2/12/2011
2/13/2011
2/14/2011
2/15/2011
2/16/2011
2/17/2011
2/18/2011
2/19/2011
2/20/2011
2/21/2011
2/22/2011
2/23/2011
2/24/2011
2/25/2011
2/26/2011
2/27/2011
2/28/2011
HSDPATrafficVol
ume(GBit)
HSDPA Traffic Volume (GBit)
HSDPA traffic volume has been increasing by around 7% since the first
iteration
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HSUPA Traffic Volume (GBit)
5
1500
1700
1900
2100
2300
2500
2700
2900
3100
3300
2/1/2011
2/2/2011
2/3/2011
2/4/2011
2/5/2011
2/6/2011
2/7/2011
2/8/2011
2/9/2011
2
/10/2011
2
/11/2011
2
/12/2011
2
/13/2011
2
/14/2011
2
/15/2011
2
/16/2011
2
/17/2011
2
/18/2011
2
/19/2011
2
/20/2011
2
/21/2011
2
/22/2011
2
/23/2011
2
/24/2011
2
/25/2011
2
/26/2011
2
/27/2011
2
/28/2011
HSUPATrafficVolume(GBit)
HSUPA Traffic Volume (GBit)
HSUPA traffic volume has been increasing by around 13% since the first
iteration
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HSDPA Call Weight (%)
Rate HSDPA/R99 traffic is higher in HSDPA (more calls in HSDPA). User is now
more in HSDPA so it has a better perception than when being in R99. Around
80% of the PS calls are in HSDPA
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HSDPA DCR has been improved by around 25% since the first iteration (13thFebruary)
From 24thto 26thFebruary several alarms were triggered (mainly transmission)
Situation seems back to normal
HSDPA Drop Call Rate (%)
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Alarms per type
8
0
500
1000
1500
2000
2500
3000
BaseStation Environment Transmission
Transmission alarms were triggered starting 22ndFebruary
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Transmission alarms
9
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
2/1/2011
2/2/2011
2/3/2011
2/4/2011
2/5/2011
2/6/2011
2/7/2011
2/8/2011
2/9/2011
2/10/2011
2/11/2011
2/12/2011
2/13/2011
2/14/2011
2/15/2011
2/16/2011
2/18/2011
2/19/2011
2/20/2011
2/21/2011
2/22/2011
2/23/2011
2/24/2011
2/25/2011
2/26/2011
ToP Timing source lost on unit 1.
Synchronisation lost.
SOFTWARE MANAGEMENT TASK TO MANAGED OBJECT
FAILED
PDH Timing source lost on unit 1, interface 1.
INTERNAL FAILURE IN SAAL STACK
FAILURE IN WCDMA WBTS O&M CONNECTION
BFD down, 10.247.143.41
BFD down, 10.247.143.25
BFD down, 10.247.143.153
BFD down, 10.247.143.121
BFD down, 10.247.142.201
BFD 1 down, ingress, 10.247.143.25 to 10.247.143.26
BFD 1 down, ingress, 10.247.143.25 to 10.247.128.189
BFD 1 down, ingress, 10.247.143.153 to 10.247.143.154
BFD 1 down, ingress, 10.247.143.153 to 10.247.128.189
BFD 1 down, ingress, 10.247.142.201 to 10.247.142.202
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In order to improve the HSDPA throughput the Average CPICH EcNo is being
improved increasing the CPICH Power where it can be done. Quality in the RNC
is expected to be improved
AvgCpichEcno
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ptxPrimaryCpich Average (dBm)
In average, ptxPrimaryCpich is being increased but only where no
interference issues are going to be created
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Bad EcIo Level (%)
EcIo level is also being improved since the first iteration
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HSDPA Throughput (kbps)
Improvements in Avg CPICH EcNo still have not impacted an
improvement in throughput but it is expected to happen in the next
iterations
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Inter-RAT Ho Rate (%)
Since the first iteration, a relevant less percentage of calls are being
diverted to 2G. Therefore, the CS and PS traffic in 3G is being increased
(see next slides)
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CS Traffic (Erl*hour)
More CS traffic is being served in 3G (around 7.5%) since the first
iteration
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PS Traffic (Erl*hour)
More PS traffic is being served in 3G (around 9%) since the first iteration
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CS Inter-RAT Ho Fail Rate (%)
CS and PS IRAT HOFR are stable
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CS Drop Call Rate (%)
???
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Optimi Corporation | February 2010 | CUSTOMER CONFIDENTIAL
PS Drop Call Rate (%)
PS R99 DCR has increased (from around 0.78% to 0.92%). But the PS R99 calls are around
23% to 25% of the total. HSDPA calls are around 75% of the total then, and the HSDPA DCR
has improved a lot there (from around 1.2% to 0.9%). So overall, we are in a much better
situation.
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CS CSFR (%)
Unstable but same values than before the first iteration
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Poor Coverage Level (%)
KPI properly defined?
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Conclusions and next steps
More traffic is being handled in 3G More HSDPA traffic (total and compared to R99) is
being served which creates a better user experience
HSDPA DCR is being improved Avg CPICH EcNo is trying to be further improved so
this has a direct impact in the quality and therefore
HSDPA throughput
A manual approach is not possible for this (e.g.increase CPICH in all the cells) as this will increase
the interference
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