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Comparative Benchmarking Report VOICE

Chennai Cluster 21

4th November & 6th November

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Table of Contents

1 INTRODUCTION .............................................................................................................................................. 4 2 COVERAGE STATISTICS (IDLE MODE) ......................................................................................................... 5

2.1 COVERAGE PLOTS ....................................................................................................................................... 6 3 RX QUALITY STATISTICS (DEDICATED MODE)...........................................................................................11

3.1 DOWNLINK RX QUALITY PLOTS (DEDICATED MODE) .......................................................................................12 4 CALL SETUP TIME.........................................................................................................................................17 5 RETAINABILITY PERFORMANCE .................................................................................................................18

5.1 VOICE CALL PERFORMANCE PLOT ................................................................................................................19 6 HANDOVER PERFORMANCE........................................................................................................................20 7 EXECUTIVE SUMMARY .................................................................................................................................21 8 ANALYSIS & RECOMMENDATIONS..............................................................................................................22

8.1 AREAS FOR SCOPE OF IMPROVEMENT............................................................................................................22 9 GLOSSARY ....................................................................................................................................................24

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Index of Figures FIGURE 1. COVERAGE DISTRIBUTION .................................................................................................................... 5 FIGURE 2. IDEA: IDLE MODE ............................................................................................................................... 6 FIGURE 3. AIRCEL: IDLE MODE .......................................................................................................................... 6 FIGURE 4. AIRTEL: IDLE MODE........................................................................................................................... 7 FIGURE 5. DOCOMO: IDLE MODE ....................................................................................................................... 7 FIGURE 6. RTL: IDLE MODE ................................................................................................................................ 8 FIGURE 7. UNINOR: IDLE MODE ......................................................................................................................... 8 FIGURE 8. VIDEOCON: IDLE MODE..................................................................................................................... 9 FIGURE 9. VODAFONE: IDLE MODE ................................................................................................................... 9 FIGURE 10. COVERAGE PERFORMANCE .............................................................................................................. 10 FIGURE 11. RX QUALITY (SUB) DISTRIBUTION...................................................................................................... 11 FIGURE 12. IDEA: RXQUAL SUB ....................................................................................................................... 12 FIGURE 13. AIRCEL: RXQUAL SUB................................................................................................................... 13 FIGURE 14. AIRTEL: RXQUAL SUB ................................................................................................................... 13 FIGURE 15. DOCOMO: RXQUAL SUB................................................................................................................ 14 FIGURE 16. RTL: RXQUAL SUB ......................................................................................................................... 14 FIGURE 17. UNINOR: RXQUAL SUB .................................................................................................................. 15 FIGURE 18. VIDEOCON: IDLE MODE................................................................................................................. 15 FIGURE 19. VODAFONE: IDLE MODE................................................................................................................ 16 FIGURE 20. RX QUAL (SUB) PERFORMANCE ....................................................................................................... 16 FIGURE 21. AVERAGE CALL SETUP TIME ............................................................................................................ 17 FIGURE 22. RETAINABILITY PERFORMANCE......................................................................................................... 18 FIGURE 23. DROP CALL PERFORMANCE STATISTICS............................................................................................ 18 FIGURE 24. DROPPED CALL PLOT ...................................................................................................................... 19 FIGURE 25. HANDOVER SUCCESS RATE ............................................................................................................. 20 FIGURE 26. HANDOVER PERFORMANCE .............................................................................................................. 20 FIGURE 27. RXQUAL PLOT - AREAS FOR SCOPE OF IMPROVEMENT FOR IDEA......................................................... 22 FIGURE 28. SAMPLE ZOOMED VIEW OF THE RXQUAL PLOT AREA WITH POOR RF CONDITION .................................... 23

Index of Tables TABLE 1. IDLE MODE COVERAGE SAMPLES.......................................................................................................... 5 TABLE 2. IDLE MODE COVERAGE PERFORMANCE ................................................................................................. 5 TABLE 3. RX QUALITY (SUB) SAMPLES ..............................................................................................................11 TABLE 4. RX QUALITY (SUB) PERFORMANCE......................................................................................................11 TABLE 5. CALL PERFORMANCE: CCSR & DROP CALL RATE ...............................................................................19 TABLE 6. CLUSTER LEVEL STATISTIC .................................................................................................................21

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1 INTRODUCTION

A comparative analysis of wireless network performance was conducted on 4th and 6th November 2010. The goal was to develop an objective view of competitive advantage or disadvantage of competing wireless operators in the area. TEMS wireless network drive test system was used in the execution of this benchmarking survey. The version used here is 9.1.3. TEMS allows wireless network operators to view their service KPI performance. It provides the objective means for network operators to assess and improve service levels and utilization of key resources.

The wireless operators benchmarked are: IDEA Idea Cellular (GSM 1800 MHz band) AIRCEL Aircel Maxis (GSM 900 MHz band) AIRTEL Bharti Tele-Ventures LTD (GSM 900 MHz band) DOCOMO TATA DOCOMO (GSM - 1800 MHz band) RTL - Reliance Telecom LTD (GSM 1800MHz band) UNINOR Unitech-Telnor (GSM - 1800 MHz band) VIDEOCON - Videocon Group (GSM - 1800 MHz band) VODAFONE - Vodafone Essar Group (GSM - 1800 MHz band)

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2 Coverage Statistics (Idle Mode) The following figures illustrate the coverage performance comparison between the wireless operators.

30.1%

52.1%

62.1%

47.5%

27.9%

26.0% 3

3.6%

50.7%

32.4%

30.3%

23.3%

33.7%

29.1% 35

.7%

33.5%

26.2%

25.5%

15.4%

11.8% 15.1%

29.2%

28.1%

24.0%

15.6%

11.3%

2.2%

2.2% 3.3%

13.2%

9.8%

8.7%

6.9%

0.8%

0.0%

0.6%

0.4% 0.6%

0.4%

0.2% 0.6%

0.0%

10.0%

20.0%

30.0%

40.0%

50.0%

60.0%

70.0%

80.0%

90.0%

100.0%

0 to -65 dBm -65 to -75 dBm -75 to -85 dBm -85 to -95 dBm -95 to -105 dBm

Cluster 21 - Coverage Distribution

IDEA AIRCEL AIRTEL DOCOMO RTL UNINOR VIDEOCON VODAFONE

% o

f Dat

a Sa

mpl

es

Figure 1. Coverage Distribution

Table 1. Idle mode Coverage samples

Table 2. Idle mode Coverage Performance

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2.1 Coverage Plots

Figure 2. IDEA: Idle Mode

Figure 3. AIRCEL: Idle Mode

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Figure 4. AIRTEL: Idle Mode

Figure 5. DOCOMO: Idle Mode

8

Figure 6. RTL: Idle Mode

Figure 7. UNINOR: Idle Mode

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Figure 8. VIDEOCON: Idle Mode

Figure 9. VODAFONE: Idle Mode

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75.9% 86.5%

88.8%

84.9%

74.1%

75.4%

78.3% 8

3.9%

0.0%

10.0%

20.0%

30.0%

40.0%

50.0%

60.0%

70.0%

80.0%

90.0%

100.0%

% o

f Da

ta Sa

mpl

es

IDEA AIRTEL RTL VIDEOCON

Cluster 21 - Coverage Performance

Figure 10. Coverage Performance

Note: Coverage performance has been calculated as per the formula mentioned in the glossary section.

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3 Rx Quality Statistics (Dedicated Mode)

The following figures illustrate the Rx Quality (Sub) performance comparison between the wireless operators. 85

.6% 89

.8%

86.1%

87.6%

87.9% 94

.3%

92.7%

92.3%

6.4%

4.4% 6.5%

6.6%

5.1%

3.1%

3.1% 4.1% 4.8%

4.0% 4.6%

3.7%

4.4%

1.8% 2.8%

2.3% 3.1%

1.8%

2.8%

2.0% 2.6%

0.8% 1.4%

1.3%

0.0%

10.0%

20.0%

30.0%

40.0%

50.0%

60.0%

70.0%

80.0%

90.0%

100.0%

RxQual_Sub: = 5 to =6 to =7

Cluster 21 - RxQual_Sub Distribution

IDEA AIRCEL AIRTEL DOCOMO RTL UNINOR VIDEOCON VODAFONE

% o

f Dat

a Sa

mpl

es

Figure 11. Rx Quality (Sub) distribution

Table 3. Rx Quality (Sub) samples

Table 4. Rx Quality (Sub) performance

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3.1 Downlink Rx Quality Plots (Dedicated Mode)

Figure 12. IDEA: RxQual Sub

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Figure 13. AIRCEL: RxQual Sub

Figure 14. AIRTEL: RxQual Sub

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Figure 15. DOCOMO: RxQual Sub

Figure 16. RTL: RxQual Sub

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Figure 17. UNINOR: RxQual Sub

Figure 18. VIDEOCON: Idle Mode

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Figure 19. VODAFONE: Idle Mode

The following figures illustrate the Rx Quality (Sub) performance comparison between the wireless operators.

85.6% 89

.8%

86.1%

87.6%

87.9%

94.3%

92.7%

92.3%

0.0%

10.0%

20.0%

30.0%

40.0%

50.0%

60.0%

70.0%

80.0%

90.0%

100.0%

% o

f Da

ta Sa

mpl

es

IDEA AIRCEL AIRTEL DOCOMO RTL UNINOR VIDEOCON VODAFONE

Cluster 21 - RxQual_Sub Performance

Figure 20. Rx Qual (Sub) Performance

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4 Call Setup Time

The following chart and table summarizes the Call Setup Time of the wireless operators.

2.85

2.83

5.09

3.12

3.17 3

.32

2.78 2.81

0.00

0.50

1.00

1.50

2.00

2.50

3.00

3.50

4.00

Call

Setu

p Ti

me

(se

cs

)

IDEA AIRTEL RTL VIDEOCON

Cluster 21 - Average Call Setuptime

Figure 21. Average Call Setup Time

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5 Retainability Performance

The following chart depicts the Retainability performance and dropped call rating of the wireless operators.

597 587

10

668 664

4

579 577

2

654 647

7

677 672

5

582 582

0

623 622

1

646 642

4

0100200300400500600700800900

1000

No.of Calls

IDEA AIRCEL AIRTEL DOCOMO RTL UNINOR VIDEOCON VODAFONE

Cluster 21 - Drop Call Performance

No. of Calls Setup No. of Calls Completed No. of Dropped Calls

Figure 22. Retainability Performance

Cluster 21 - Retainability

99.8% 99.4%98.5% 99.4% 99.2% 98.9% 99.6% 100.0%0.6%0.2%1.5% 0.6% 0.8% 1.1% 0.4% 0.0%

80.0%

85.0%

90.0%

95.0%

100.0%

IDEA AIRCEL AIRTEL DOCOMO RTL UNINOR VIDEOCON VODAFONECall Completion Success Rate Drop Call Rate

Figure 23. Drop Call Performance Statistics

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IDEA 596 587 9 98.5% 1.5%AIRCEL 668 664 4 99.4% 0.6%AIRTEL 631 626 5 99.2% 0.8%

DOCOMO 654 647 7 98.9% 1.1%RTL 675 672 3 99.6% 0.4%

UNINOR 640 640 0 100.0% 0.0%VIDEOCON 623 622 1 99.8% 0.2%VODAFONE 647 643 4 99.4% 0.6%

Cluster 21

No. of Calls Completed

No. of Dropped Calls

Call Completion

Success Rate Drop Call RateNo. of Calls SetupArea

Wireless Operator

Table 5. Call performance: CCSR & Drop Call Rate

5.1 Voice Call Performance Plot

This section shows the location of the dropped calls during the mobile originated voice call drive.

Figure 24. Dropped Call Plot

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6 Handover Performance

The following chart depicts the Handover performance.

Cluster 21 - Handover Success Rate

84.7%

99.6% 98.8% 98.8%99.7%

96.1%97.9%

93.7%

1.2%1.2%0.4%

15.3%6.3%

2.1%0.3%

3.9%

70.0%

75.0%

80.0%

85.0%

90.0%

95.0%

100.0%

IDEA AIRCEL AIRTEL DOCOMO RTL UNINOR VIDEOCON VODAFONESuccess Rate Failure Rate

Figure 25. Handover Success Rate

488 469

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1027 1024

3

570 558

12

758 710

48

439 372

67

551 549

2

339 335

4

344 340

40

500

1000

1500

2000

No. of Calls

IDEA AIRCEL AIRTEL DOCOMO RTL UNINOR VIDEOCONVODAFONE

Cluster 21 - Handover Performance

Handover Command Handover Complete Handover Failures

Figure 26. Handover Performance

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7 Executive summary

The following table summarizes the Cluster performance of wireless operators.

Table 6. Cluster level statistic

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8 ANALYSIS & RECOMMENDATIONS

8.1 Areas for scope of Improvement Below provided plot shows the poor RxQual areas of IDEA. These areas need to be optimized to confirm the hypothesis and address the issue. Optimization is recommended to improve the quality and other KPI in the market.

Figure 27. RxQual plot - Areas for scope of improvement for IDEA

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Figure 28. Sample zoomed view of the RxQual plot area with poor RF condition

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9 Glossary

This section provides the formulas to calculate the scores for various KPIs presented in the report.

a. Coverage

Coverage is categorized according to the list below

Coverage Category Ranges in dB Weightage Dense Urban (A) Better than -65 10

Urban (B) -65 to -75 8 Sub Urban ( C ) -75 to -85 6

Rural (D) -85 to -95 4 Outdoor (E) Less than -95 2

Coverage metric is calculated by the formula,

Coverage = A %*10+ B%*8+C%*6+D%*4+ E%*2 10

b. Voice Quality

Through Rx Qual (Received DL Quality). The samples collected of Rx Qual are compared based on below mentioned values:

i. 0 to 5 ii. 6 to 7

c. Call setup time:

Call set up time is the total time in sec till traffic channel allocation (Alerting).

d. Call Drop Rate

Call drop rate = Total no of calls dropped x 100 Total no of calls set up

e. Handover Success Rate

Handover success rate = Total no of successful handovers x 100 Total no of handovers attempted