94, Kairaba Avenue, P. O. Box 4230 Bakau,The Gambia Tel. (220) 4399601 / 4399606 Fax: (220) 4399905 E.mail[email protected]Website www.pura.gm Technical Report November 2016 M ONTHLY M OBILE Q O S R EPORT Comparative Mobile Quality of Service Report for Mobile Networks
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Technical Report November 2016 - pura.gm · KPI Key Performance Indicators Standard against which performance is measured. ... TCHCR-BH Traffic Channels Congestion Rate @ Busy Hour
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94, Kairaba Avenue, P. O. Box 4230 Bakau,The Gambia Tel. (220) 4399601 / 4399606 Fax: (220) 4399905
CS RAB SSR Setup Success rate for a radio access resources (bearer) on the circuit switch (voice communication)
PS RAB SSR Setup Success rate for a radio access resources (bearer) on the Packet switch (data communication)
RRC Call Setup Success Rate the global Success rate of obtaining a connection session to the RRC layer
RRC Call Setup Success Rate @ BH at busy hour Success rate of obtaining a connection session to the RRC layer
CS voice Call Setup Success Rate the global Success rate of obtaining a calling channel for voice communication CS voice Call Setup Success Rate @ BH at busy hour Success rate of obtaining a calling channel for voice communication
CS voice Call Drop Rate the probability of a voice call drop after initiated
CS voice Call Drop Rate @ BH the probability of a voice call drop after initiated at busy hour
CS HO 3G to 2G the Handover Success rate for swapping a communication from the 3G network to the 2G one
CS HO 3G to 2G @ BH the Handover Success rate for swapping a communication from the 3G network to the 2G one at busy hour
HSDPA Debit the global average throughput
HSDPA Debit @ BH the average throughput at busy hour
CS Data Call Setup Success Rate the global call setup Success rate of a data section on the circuit switch (GPRS)
CS Data Call Setup Success Rate @ BH at busy hour call setup Success rate of a data section on the circuit switch (GPRS) PS Call Setup Success Rate the global call setup Success rate of a data section on the Packet switch
PS Call Setup Success Rate @ BH at busy hour call setup Success rate of a data section on the Packet switch
CS Data Call Drop Rate the global call drop rate in the circuit switch (voice)
CS Data Call Drop Rate @ BH at busy hour call drop rate in the circuit switch (voice)
PS Call Drop Rate the global call drop rate in the Packet switch
PS Call Drop Rate @ BH at busy hour call drop rate in the Packet switch
PS HO 3G to 2G the global handover Success rate from Packet switch to edge
PS HO 3G to 2G @ BH at busy hour handover Success rate from Packet switch to edge
Soft HO Success Rate Global handover Success rate on soft mode (make-before-break)
Soft HO Success Rate @ BH At busy hour handover Success rate on soft mode (make-before-break)
CS Rab Setup Success Rate
Global setup Success rate for a radio access resources (bearer) on the circuit switch (voice communication)
CS Rab Setup Success Rate @ BH
At busy hour setup Success rate for a radio access resources (bearer) on the circuit switch (voice communication)
PS Rab Setup Success Rate
Global setup Success rate for a radio access resources (bearer) on the Packet switch (data communication)
PS Rab Setup Success Rate @ BH
At busy hour setup Success rate for a radio access resources (bearer) on the Packet switch (data communication)
8 SDCCH Drop Rate @ BH ≤ 2% 9 Call Drop Rate @ BH ≤ 2%
10 HO Success Rate @ BH ≥ 95% 11 Data Availability Rate =100%
• 3G KPIS & THRESHOLDS
Item# KPI Compliance Threshold
1 RRC Call Success Rate @ BH ≥ 95%
2 CS RAB Setup Success Rate @ BH ≥ 95%
3 PS RAB Setup Success Rate @ BH ≥ 95%
4 CS Voice Call Setup Success @ BH ≥ 95%
5 CS Data Call Setup Success Rate @ BH ≥ 95%
6 PS Call Setup Success Rate @ BH ≥ 95%
7 CS Voice Call Drop Rate @ BH ≤ 2%
8 CS Data Call Drop Rate @ BH ≤ 2%
9 PS Call Drop Rate @ BH ≤ 2%
10 Soft HO Success Rate @ BH ≥ 95%
11 CS321InterRatHoSR ≥ 95%
12 PS321InterRatHoSR ≥ 95%
13 Data Availability Rate 100%
November 2016
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5. FINDINGS 1: 2G NETWORKS
5.1. COUNTRYWIDE 2G QOS KPIS - @ BUSY HOUR
No KPI Thres-hold %
AFRICELL 2G
COMIUM 2G
GAMCEL 2G-A
GAMCEL 2G-B
GAMCEL 2G A & B
Qcell 2G
1 TCH Availability
≥ 95% 99.65 98.43 57.33 98.68 78.01 96.35
2 SDCCH Availability
≥ 95% 99.64 98.32 74.23 99.28 86.76 97.16
3 CSSR ≥ 95%
93.44 92.19 94.04 95.81 94.93 91.97
4 CSR ≥ 95%
92.12 88.74 89.49 95.02 92.26 90.18
5 HO Success ≥ 95%
98.28 93.87 88.59 97.68 93.14 92.08
6 TCH Congestion
≤ 2% 0.22 1.46 1.35 0.01 0.68 1.25
7 TCH Drop Rate
≤ 2% 6.54 7.79 0.22 4.19 8.02 8.02
8 SDCCH Congestion
≤ 2% 0.12 1.47 0.52 0.03 0.28 1.57
9 SDCCH Drop Rate
≤ 2% 1.12 2.48 0.76 0.43 0.6 1.17
10 Call Drop Rate
≤ 2% 1.41 3.74 2.75 0.82 1.79 1.93
Number of BTSs 466 265 146 326 448 592
Offline BTSs 12 49 123 143 133 57
• AFRICELL 2G
During the month of November 2016, the AFRICELL 2G network was compliant in 7 out of 10 KPIs, as shown above. The network failed on CSSR, CSR and TCH Drop Rate.
The CSSR, CSR and CDR KPIs also indicated that during the period, 204, 289 and 368 BTSs respectively were non-conforming, i.e., performed below compliance levels.
At the end of November 2016, AFRICELL had a total of 466 2G BTSs deployed, out of which 12 BTSs went offline for some period during the month. These offline BTSs were not reported to PURA prior of after the downtime as required in the Authority’s Fault Reporting Guidelines.
November 2016
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• COMIUM 2G
The COMIUM 2G network had 4 compliant KPIs out of 10, as shown in the table above. These were TCH Availability, SDCCH Availability, TCH Congestion and SDCCH Congestion rates.
Some of the non-compliant KPIs include CSSR, CSR, HO and Call Drop Rates.
CSSR, CSR and TCH Drop Rate KPIs had 204, 289 and 236 non-conforming cells respectively during the month.
During the month, out of a total of 269 total deployed BTSs, 49 went offline for a period, but were not reported to the Authority before or after the downtimes.
• GAMCEL – (ALCATEL) 2G-A
The GAMCEL (Alcatel) 2G-A network is their old Alcatel Network, which is being
phased out and is mostly operational in the provinces.
As seen from the 2G Table above, this network is compliant in 4 out of the 10 KPIs
shown. The non-compliant KPIs include TCH Availability and SDCCH Availability, at
57.33% and 74.23%.
At the end of November 2016, out of a total of 146 BTSs deployed on this network, 123 went offline for a period, but were not reported to the Authority before or after the downtimes.
• GAMCEL – (HUAWEI) 2G-B
The GAMCEL (Huawei) 2G network had 9 compliant KPIs out of 10, shown in the
table above. The only non-compliant KPI was the TCH Drop rate, at 4.19%.
In November 2016, out of a nationwide total of 326 deployed BTSs, 143 went offline
for a period, but were not reported to the Authority before or after the downtimes.
• GAMCEL – 2G-A AND 2G-B
The weighted average KPI values for GAMCEL’s Huawei 2G and Alcatel 2G may be
used in the future, to indicate a combined 2G Network. However, GAMCEL had
decommissioned some ALCATEL cells during the period and the application of
weighted average using the cells on both network would not yield accurate results for
analyses.
Indicative figures are however provided, as shown in the table above.
• QCELL – 2G
The QCELL 2G network rated a compliance level of 6 out of 10 KPIs for the month.
Some of the non-compliant KPIs include CSSR, CSR, HO Success and TCH Drop
Rates.
November 2016
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TCH Availability, SDCCH Availability, and TCH Drop Rates were among the
compliant KPIs on the network during the period.
At the end of the reporting period, the network had a total of 592 BTSs deployed
countrywide, with 57 of them having gone offline for a period, but were not reported