Independent Drive Test Report - May'16 Ahmedabad

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Independent Drive Test Report - May’16 Ahmedabad Key performance indicators for most of the operators: Most of the operators meet the Call Setup Success Rate (CSSR) where as most of the operators fall below the 2% CDR threshold Methodology: Independent Drive test was conducted in Ahmedabad & surrounding areas from 9:00 AM to 9:PM from 18th to 20 th of May 2016. The total drive test covered in Ahmedabad area was approximately 350 km over a period of 3 days. A total of ~5998 calls were made for seven 2G networks, five 3G networks and one CDMA networks covering eight operators 1 2 3 4 City-Level Performance Area-Level Performance Analysis Summary and Highlights Date: 22 June 2016 5 Appendix I. Methodology II. Benchmarking KPIs III. Coverage IV. Receive (Rx) Quality V. City-Level Ranking VI. City-Level KPI The independent drive test has been carried out by M/s IMRB International on behalf of TRAI

Transcript of Independent Drive Test Report - May'16 Ahmedabad

Independent Drive Test Report

- May’16

Ahmedabad

Key performance indicators for most of the operators: Most of the operators meet the Call Setup

Success Rate (CSSR) where as most of the operators fall below the 2% CDR threshold

Methodology:

Independent Drive test was conducted in Ahmedabad & surrounding areas from 9:00 AM to 9:PM from 18th to 20th of May 2016. The total drive

test covered in Ahmedabad area was approximately 350 km over a period of 3 days. A total of ~5998 calls were made for seven 2G networks,

five 3G networks and one CDMA networks covering eight operators

1 2 3 4

City-Level

Performance

Area-Level

Performance Analysis Summary

and

Highlights

Date: 22 June 2016

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Appendix I. Methodology

II. Benchmarking KPIs

III. Coverage

IV. Receive (Rx) Quality

V. City-Level Ranking

VI. City-Level KPI

The independent drive test has been carried out by M/s IMRB International on behalf of TRAI

1. City-Level Performance

City-Level Details Operator Performance against Key Performance Indicators :

1. Call Setup Success Rate, 2. Blocked Call Rate, 3. Call Drop Rate, 4. Rx Quality

Legends Threshold for each KPI are considered as per TRAI guidelines

Abbreviation / Definition: CSSR (benchmark > =95%) : Call Setup Success Rate

BCR (benchmark <=3%): Blocked Call Rate

CDR (benchmark <=2%): Call Drop Rate

Good RxQuality (benchmark >=95%): 2G (RxQual <=5), 3G (EcNo >=-15dBm), CDMA (FER <=4%)

Most of the operators have met the

Call Setup Success Rate

benchmark of >=95% except

Reliance CDMA. Refer. Fig 1

Most of the operators have met the

Call Blocked Rate benchmark of

<=3% except Aircel 2G , BSNL 2G

& 3G, Reliance 2G & CDMA and

Vodafone 2G. Refer. Fig 2

Most of the operators failed to

meet the Call Drop Rate

benchmark of <=2% except Airtel

2G.

Refer. Fig 3

Most of the operators failed to

meet the Rx Quality Rate

benchmark of >=95% except Airtel

2G & 3G, Idea 3G and Vodafone

3G.

Refer. Fig 4

Operator meeting the benchmark Operator not meeting the benchmark

91.3%

96.1% 98.5%

90.9% 94.6%

87.9%

96.3% 92.4%

88.9%

94.0% 91.6% 90.5%

98.0%

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Fig 4. Rx Quality (%)

95%

4.5% 1.9% 2.3%

5.6%

15.2% 11.4% 11.4%

3.3% 7.4%

3.5% 3.9% 2.4% 3.1%

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Fig 3. Call Drop Rate (%)

2%

95.7% 97.6%

99.3% 96.5% 95.2%

97.1% 97.9% 96.4%

90.7%

97.1% 97.7% 96.6% 97.9%

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Fig 1. Call Setup Success Rate (%)

95%

4.3% 2.4%

0.7%

3.5% 4.8%

2.9% 2.1% 3.6%

9.3%

2.9% 2.3% 3.4%

2.1%

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Fig 2. Block Call Rate (%)

3%

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2. Area-Level Performance

Area-Level Details

Legends

Most of the areas of Ahmedabad met the Call Setup Success Rate benchmark of >=95% except

Manin Nagar

Fig 5. Area Level CSSR KPI Performance ( all operators inclusive)

Areas meeting the benchmark Areas not meeting the benchmark

Abbreviation / Definition: CSSR (benchmark > =95%) : Call Setup Success Rate

BCR (benchmark <=3%): Blocked Call Rate

CDR (benchmark <=2%): Call Drop Rate

Good RxQuality (benchmark >=95%): 2G (RxQual <=5), 3G (EcNo >=-15dBm), CDMA (FER <=4%)

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Call Setup Success Rate Aircel Airtel BSNL Idea RCOM TATA Telenor Vodafone

Ahmedabad Central 95.8% 97.1% 99.1% 97.8% 97.6% 97.1% 96.7% 98.4%

Chandola 98.0% 100.0% 95.5% 97.9% 89.8% 100.0% 100.0% 99.0%

Charodi 92.0% 98.1% 90.7% 96.6% 98.3% 93.3% 100.0% 95.0%

Hansol 92.3% 98.5% 95.0% 98.4% 89.2% 93.1% 97.1% 96.9%

Hebatpur 98.0% 98.9% 92.4% 96.8% 95.3% 97.3% 100.0% 96.7%

Manin nagar 93.5% 98.0% 87.5% 93.6% 87.5% 85.0% 100.0% 95.7%

Naroda 95.0% 100.0% 97.1% 99.1% 87.6% 100.0% 95.1% 95.1%

Prahlad nagar 96.9% 98.2% 94.8% 97.4% 92.6% 100.0% 98.5% 97.3%

2. Area-Level Performance

Area-Level Details

Legends

Fig 6. Area Level Blocked Call Rate KPI performance ( all operators inclusive)

Most of the areas of Ahmedabad failed to meet the benchmark for Blocked Call Rate of <=3%

except Ahmedabad Central and Chandola

Abbreviation / Definition: CSSR (benchmark > =95%) : Call Setup Success Rate

BCR (benchmark <=3%): Blocked Call Rate

CDR (benchmark <=2%): Call Drop Rate

Good RxQuality (benchmark >=95%): 2G (RxQual <=5), 3G (EcNo >=-15dBm), CDMA (FER <=4%)

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Areas meeting the benchmark Areas not meeting the benchmark

Call Blocked Rate Aircel Airtel BSNL Idea RCOM TATA Telenor Vodafone

Ahmedabad Central 4.2% 2.9% 0.9% 2.2% 2.4% 2.9% 3.3% 1.6%

Chandola 2.0% 0.0% 4.5% 2.1% 10.2% 0.0% 0.0% 1.0%

Charodi 8.0% 1.9% 9.3% 3.4% 1.7% 6.7% 0.0% 5.0%

Hansol 7.7% 1.5% 5.0% 1.6% 10.8% 6.9% 2.9% 3.1%

Hebatpur 2.0% 1.1% 7.6% 3.2% 4.7% 2.7% 0.0% 3.3%

Manin nagar 6.5% 2.0% 12.5% 6.4% 12.5% 15.0% 0.0% 4.3%

Naroda 5.0% 0.0% 2.9% 0.9% 12.4% 0.0% 4.9% 4.9%

Prahlad nagar 3.1% 1.8% 5.2% 2.6% 7.4% 0.0% 1.5% 2.7%

2. Area-Level Performance

Area-Level Details

Legends

All areas of Ahmedabad failed to meet the Call Drop Rate benchmark of <=2%.

Fig 7. Area Level Call Drop Rate KPI Performance ( all operators inclusive)

Abbreviation / Definition: CSSR (benchmark > =95%) : Call Setup Success Rate

BCR (benchmark <=3%): Blocked Call Rate

CDR (benchmark <=2%): Call Drop Rate

Good RxQuality (benchmark >=95%): 2G (RxQual <=5), 3G (EcNo >=-15dBm), CDMA (FER <=4%)

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Areas meeting the benchmark Areas not meeting the benchmark

Call Drop Rate Aircel Airtel BSNL Idea RCOM TATA Telenor Vodafone

Ahmedabad Central 2.8% 1.0% 5.0%

8.2% 2.8% 1.5% 3.4% 4.9%

Chandola 8.3% 2.6% 5.9%

13.0% 8.2% 6.8% 5.9% 3.1%

Charodi 4.3% 1.9% 12.2%

17.9% 1.7% 7.1% 5.9% 1.8%

Hansol 8.3% 0.0% 8.8%

14.5% 8.6% 0.0% 6.1% 4.8%

Hebatpur 4.1% 2.2% 20.5%

17.4% 4.0% 8.3% 3.9% 0.0%

Manin nagar 6.9% 6.1% 14.3%

13.6% 9.5% 0.0% 13.6% 0.0%

Naroda 5.3% 2.3% 6.7%

11.1% 11.5% 5.9% 0.0% 0.0%

Prahlad nagar 3.2% 3.7% 22.0%

8.1% 3.6% 2.0% 3.0% 1.9%

2. Area-Level Performance

Area-Level Details

Legends

All areas of Ahmedabad failed to meet the Rx Quality benchmark of >=95%

Abbreviation / Definition: CSSR (benchmark >= 95%) : Call Setup Success Rate

BCR (benchmark <=3%): Blocked Call Rate

CDR (benchmark <=2%): Call Drop Rate

Good RxQuality (benchmark >=95%): 2G (RxQual <=5), 3G (EcNo >=-15dBm), CDMA (FER <=4%)

Fig 8. Area Level Rx Quality KPI performance (all operators inclusive)

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Areas meeting the benchmark Areas not meeting the benchmark

Rx Quality Aircel Airtel BSNL Idea RCOM TATA Telenor Vodafone

Ahmedabad Central 91.79% 97.23% 95.58% 90.55% 93.54% 97.72% 90.96% 95.51%

Chandola 88.00% 99.04% 91.89% 89.22% 88.42% 87.41% 90.12% 90.99%

Charodi 97.18% 95.35% 83.74% 90.76% 96.85% 87.92% 92.63% 90.85%

Hansol 82.08% 96.52% 91.13% 89.74% 76.95% 87.27% 90.79% 89.93%

Hebatpur 88.08% 98.13% 84.48% 91.15% 89.59% 93.01% 93.79% 94.88%

Manin nagr 92.15% 94.56% 91.53% 88.42% 83.90% 93.05% 89.21% 93.17%

Naroda 88.08% 96.11% 94.90% 93.33% 87.21% 96.44% 92.28% 95.21%

Prahlad nagar 99.41% 97.35% 86.83% 94.63% 95.14% 95.54% 93.15% 94.76%

Detailed Analysis of Operators

High RLT

• Radio Link Timeout (RLT indicates how long the call can

sustain during poor quality – Higher the value the

longer it will sustain the call). Higher the RLT, poorer the

consumer experience during the call.

• If Radio Link Timeout of > 40 is considered for Aircel &

Idea. Call Drop Rate would be higher than the present

call drop rate.

Operators No. of Cells with

RLT <= 40

No. of Cells

with RLT > 40 Current CDR

CDR, If all

Cells assume

RLT <= 40

Airtel 100.00% 0.00% 1.86% 1.86%

Aircel 48.43% 51.57% 4.47% 4.88%

Vodafone 99.72% 0.28% 2.45% 2.45%

Idea 12.73% 87.27% 11.36% 11.59%

BSNL 72.91% 27.09% 5.63% 5.63%

Telenor 77.39% 22.61% 3.91% 3.91%

RCOM 90.40% 9.60% 3.27% 3.27%

3. Analysis

Legends Current Drive: May 2016

Operator meeting the set CDR threshold Operator not meeting the set CDR threshold

Abbreviation / Definition: CSSR (benchmark >=95%) : Call Setup Success Rate

BCR (benchmark <=3%): Blocked Call Rate

CDR (benchmark <=2%): Call Drop Rate

Good RxQuality (benchmark >=95%): 2G (RxQual <=5), 3G (EcNo >=-15dBm), CDMA (FER <=4%)

3. Analysis

Detailed Analysis of Operators

Idea 2G (CDR : 11.36%, Signal Quality : 87.86%)

• Ahmedabad Central, Charodi and Hebatpur are the key contributed areas (as shown in highlighted map) to dropped call.

• Dropped calls in these three areas are 60% of total dropped calls in all areas.

• Poor quality of network is clear indication of high call drop rate.

Idea 3G (CDR : 11.40%)

• The observation shows almost 75% of calls which started on 3G network switched to 2G network, even signal Quality of 2G network is poor than 3G network.

• The observation shows 75% of dropped calls on 3G enabled SIM card, dropped on 2G network which make overall 3G performance poor.

Parameter

Highlighted

areas(Ahmedabad

Central, Charodi &

Hebatpur)

Rest of

Ahmedabad

# call drops 30 20

Rx Quality %( Good

sample) 87.30% 88.41%

Parameter 3G network 2G network

# call Attempt 330 109

# call Drop 12 37

# call ended 125 265

% Technology distribution

43.4% 56.6%

BSNL 3G (CDR : 15.21%) Parameter 3G network 2G network

# call Attempt 165 208

# call Drop 14 40

# call ended 99 225

% Technology distribution

39.1% 60.9%

• The observation shows 44% calls were attempted on 3G network only, due to this most of the calls were initiated on 2G network.

• This scenario could be a reason who would not be able to avail 3G services for a long period

• Most of the calls dropped just after compressed mode (IRAT Handover). Need to check the related parameter.

Reliance CDMA (CDR : 7.37%, BCR : 9.31%)

• Signal quality of Reliance CDMA is Very poor and not meeting benchmark of >=95%.

• Poor signal quality is the clear indication of high call drop in network.

Parameter Value(%)

Signal Quality(Good sample <=4% of total FER sample)

88.90%

Legends Current Drive: May 2016

Operator meeting the set CDR threshold Operator not meeting the set CDR threshold

Abbreviation / Definition: CSSR (benchmark > =95%) : Call Setup Success Rate

BCR (benchmark <=3%): Blocked Call Rate

CDR (benchmark <=2%): Call Drop Rate

Good RxQuality (benchmark >=95%): 2G (RxQual <=5), 3G (EcNo >=-15dBm), CDMA (FER <=4%)

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4. Summary & Highlights

Summary & Highlights

Most of the operators failed to meet the Call Drop Rate Benchmark of <=2% except Airtel 2G

Key Highlights

• Only Airtel 2G met the Call Drop Rate benchmark of <=2% in 2G networks.

• Most of the operators failed to meet the benchmark by a wide margin. Except Airtel 2G & 3G and Vodafone 2G, most

of the operators have Call Drop rate of >3%

• Idea 2G & 3G and BSNL 3G have Call Drop Rates in the range of above 10%. These are exceptionally high and it

clearly indicate for urgent need of improvement in order to deliver reasonable levels of services.

• A big gap between the performances of Airtel (2G & 3G) and Vodafone (2G) compared to the poor performances of

other operators are clearly showing in the areas driven, it is possible for other operators to offer a much better Quality

of service than is currently being provided.

Fig 9. Call Drop Rate

4.5%

1.9% 2.3%

5.6%

15.2%

11.4% 11.4%

3.3%

7.4%

3.5% 3.9% 2.4% 3.1%

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Fig 9. Call Drop Rate (%)

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5. Appendix

Ancillary Details

I. Methodology & Other Details

II. Benchmarking KPI Details

III. Coverage Details

IV. Receive (Rx) Quality Details

V. City-Level Ranking and KPI details

VI. City-Level KPI details

Table of Contents in Appendix

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Appendix

Ancillary Details

1. Methodology & Other Details

Overview:

Telecom Regulatory Authority of India has been entrusted with the task of laying down the standards of quality of service to be provided

by the service providers and ensuring that the quality of service is provided as per norms; and also TRAI is responsible for conducting

the periodical audit of such services provided by the service providers so as to protect the interest of the consumers of

telecommunications service

TRAI is regularly monitoring the performance of Telecom Service Providers (TSP) against the benchmarks for the various Quality of

Service (QoS) parameters laid down by the Authority. TSPs submit Performance Monitoring Reports to TRAI every quarter. TRAI also

undertakes audit and assessment of Quality of Service through independent agencies to verify the Quality of Service claimed. The Audit

agencies conduct sample ‘Drive tests’ across various cities all over the country as part of audit and assessment of the TSPs’

performance

In view of complaints on call drops and other network issues, on behalf of TRAI, an Independent Drive Test (IDT) was conducted from

18th May 2016 to 20th May 2016 covering various locations in North Ahmedabad, South Ahmedabad, Central Ahmedabad and West

Ahmedabad. The performance of Aircel, Airtel, BSNL, Idea, Vodafone, Reliance, Tata, Telenor was monitored across various

technologies (2G, 3G and CDMA). The drive test route was defined on the basis of several factors that include - areas from where call

drop complaints are commonly received; areas of heavy usage; residential areas away from arterial roads; office areas; areas where

previous Drive tests showed network issues; etc.

For the purpose of these tests, 2G + 3G Mode (Auto) was used. The test results obtained from these drive tests were conducted to

assess the network condition more specifically in terms of Radio Frequency (RF) Coverage; Rx Quality; Call Setup Success Rate; Call

Drop Rate; Blocked Calls and Carrier to Interference ratio

Drive Route Details For Ahmedabad Area:

Independent Drive test was conducted in Ahmedabad area from 9:00 AM to 9:PM from 18th to 20th of May 2016. The total drive test

covered in Ahmedabad area was approximately 350 km over a period of 3 days. Total of ~5998 calls were made for seven 2G

networks, five 3G networks and one CDMA networks covering eight operators. Roads and Areas covered in Ahmedabad is shown in the

below map.

Below is the List of Areas Covered and Drive Routes

• Sardar Patel Ring Rd • Subhash Nagar • Vishnu Nagar • Shree Swaminarayan

Gurukul • Chharodi • DevNagar • Morar Nagar Society • Jain Nagar Sabarmari • Ram Nagar • Jal Sabar Society • SBI Rly Station • Nirnay Nagar • Akbar Nagar • Nandanvan • Shenbhai Nagar • Parvar society • BSNL Colony • Sankli Nagar • Vishala Circle • Dwarkesh Nagar • Santhal Circle

• Gujarat Tech University

• Hansol • Airport Road • Military Area • Sabarmati Ashram • Sabarmati Riverfront

Development Corporation Limited

• Ashram Rd • Lal Darwaja • Paldi • Kalupur • Sarangpur • Maninagar • Narol Rd • Piplaj Pirana Rd • Govindwari • Khodiyar Nagar • Jaybharat Society • Ahmedabad Airport • Sardar Patel Stadium • Gujarat University

• Muthia • Kotarpur • GIDC Naroda • Bhadreshwar • Naroda Rly Station • New india Colony • Prem Nagar • Krishna nagar • Hirawadi • Bapu Nagar • Rehmat nagar • Lal Bahadur shastri Rd • Paresh Nagar • Pushpvihar • Rabari colony • Vastral • Vidhya nagar • Taxshila Park • Jivan Jyoti Society • Taxshila Nagar • Gopal Nagar Society • Dehgam Rd • Nava Naroda • nikol Gam Rd • ITI

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Appendix

Ancillary Details

2. Benchmarking KPI Details

RF Coverage

RF Coverage relates to the geographical footprint within the system that has sufficient RF signal strength to provide for a call/data

session. Coverage rate of an operator is calculated basis of % of samples in which the Rx level is better than -85 dBm

Accessibility

Accessibility is the ability of a service to be obtained within specific tolerances and other given conditions, when requested by the user.

In other words, the ability of a user to obtain the requested service from the system. Accessibility is monitored by measuring Call Setup

Success Rate (CSSR) which is defined as the ratio of Established Calls to Call Attempts

Retainability

Retainability is “The ability of a service, once obtained, to continue to be provided under given conditions for a requested duration.” For

determining the Retainability the regulation prescribes three important parameters namely Call Drop Rate (CDR), Worst affected Cells

having more than 3% TCH drop and Connection with good voice quality. Drop Call and Connection with good voice quality were

monitored by the drive test

Mobility

In a cellular system a base station has only a limited coverage area. Hence it is possible for a moving subscriber to be out of range of a

base station while making a call. The process by which a mobile telephone call is transferred from one base station to another as the

subscriber passes the boundary of a cell is called a handover. The Handover success rate (HOSR) more than 95% is considered to be

good

Rx Quality

For measuring voice quality, RxQual samples on a scale from 0 to 7 for GSM operators, EcNo from 0 to -30 dBm and Frame Error Rate

(FERs) for CDMA service providers are measured. As per the QoS norms, RxQual between 0- 5 for GSM operators, EcNo >= -15 dBm and

between 0-4% FER value for CDMA operators FERs is considered to be good, where as RxQual beyond this benchmark is considered to

be bad

Coverage % Accessibility % Retainability % Mobility % Rx Quality %

Aircel 2G 75.29% 95.72% 95.53% 89.66% 91.27%

Airtel 2G 93.34% 97.58% 98.14% 96.34% 96.05%

Airtel 3G 90.81% 99.30% 97.66% 99.93% 98.50%

BSNL 2G 90.98% 96.50% 94.37% 97.07% 90.86%

BSNL 3G 37.06% 95.17% 84.79% 99.82% 94.58%

IDEA 2G 98.80% 97.13% 88.64% 90.14% 87.86%

IDEA 3G 87.26% 97.95% 88.60% 99.67% 96.33%

Reliance 2G 83.85% 96.43% 96.73% 97.97% 92.40%

Reliance CDMA 95.86% 90.69% 92.63% 100.00% 88.90%

TATA 3G 50.67% 97.14% 96.51% 100.00% 93.97%

Telenor 2G 91.77% 97.71% 96.09% 90.63% 91.64%

Vodafone 2G 94.84% 96.56% 97.55% 95.23% 90.45%

Vodafone 3G 89.45% 97.93% 96.95% 100.00% 97.98%

0.00%

25.00%

50.00%

75.00%

100.00%

KPI Distribution

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Appendix

Ancillary Details

3. Coverage Details

RF Coverage relates to the geographical footprint within the system that has sufficient RF signal strength to provide for a call/data

session. The Coverage rate of an operator is calculated basis of % of samples in which the Rx level is better than -85 dBm. The details

are as follows.

Operators not meeting benchmark

Aircel 2G Airtel 2G Airtel 3G

BSNL 2G BSNL 3G IDEA 2G

0.00%

25.00%

50.00%

75.00%

100.00%

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Coverage Distribution

-95 to -120 dBm -85 to -95 dBm -75 to -85 dBm 0 to -75 dBm

Operators Coverage Rate

Aircel 2G 75.29%

Airtel 2G 93.34%

Airtel 3G 90.81%

BSNL 2G 90.98%

BSNL 3G 37.06%

IDEA 2G 98.80%

IDEA 3G 87.26%

Reliance 2G 83.85%

Reliance CDMA 95.86%

TATA 3G 50.67%

Telenor 2G 91.77%

Vodafone 2G 94.84%

Vodafone 3G 89.45%

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Appendix

Ancillary Details

3. Coverage Details

IDEA 3G RCOM 2G RCOM CDMA

Tata 3G Telenor 2G Vodafone 2G

Vodafone 3G

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Appendix

Ancillary Details

4. Receive (Rx) Quality Details

For measuring voice quality, RxQual samples on a scale from 0 to 7 for GSM operators, EcNo for 3G operators on a scale of 0 to -30

dBm and Frame Error Rate (FERs) for CDMA service providers are measured. As per the QoS norms, Rx Qual between 0- 5 for GSM

operators, EcNo >= -15 dBm and between 0-4% FER value for CDMA operators FERs is considered to be good, where as quality beyond

this benchmark is considered to be bad. The benchmark should usually be > =95%.

Operators not meeting benchmark

Aircel 2G Airtel 2G Airtel 3G

BSNL 2G BSNL 3G IDEA 2G

0.00%

25.00%

50.00%

75.00%

100.00%

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Rx Quality Distribution

RxQual 6 to 7, EcNo <-15 dBm, FER <= 4% RxQual 0 to 5, EcNo >=-15 dBm, FER > 4%

Operator Rx Quality

Aircel 2G 91.27%

Airtel 2G 96.05%

Airtel 3G 98.50%

BSNL 2G 90.86%

BSNL 3G 94.58%

IDEA 2G 87.86%

IDEA 3G 96.33%

Reliance 2G 92.40%

Reliance CDMA 88.90%

TATA 3G 93.97%

Telenor 2G 91.64%

Vodafone 2G 90.45%

Vodafone 3G 97.98%

14

Appendix

Ancillary Details

4. Receive (Rx) Quality Details

IDEA 3G RCOM 2G RCOM CDMA

Tata 3G Telenor 2G Videocon 2G

Vodafone 3G

15

Appendix

Ancillary Details

5. City-Level Ranking and KPI details

Accessibility is the ability of a service to be obtained within specific tolerances and other given conditions, when requested by the user.

In other words, the ability of a user to obtain the requested service from the system. Accessibility is monitored by measuring Call Setup

Success Rate (CSSR) which is defined as the ratio of Established Calls to Call Attempts. The benchmark is >=95%. The details are as

follows:

Retainability is “the ability of a service, once obtained, to continue to be provided under given conditions for a requested duration.” For

determining the Retainability, the regulation prescribes three important parameters namely Call drop rate (CDR), Worst affected Cells

having more than 3% TCH drop and Connection with good voice quality. The call drop and connection with good voice quality were

monitored by the drive test

Call Drop Rate (CDR): The parameter gives a reliable measurement of the mobile network used by the service provider for maintaining a

call once it has been correctly established

Mobility: In a cellular system a base station has only a limited coverage area. Hence it is possible for a moving subscriber to get out of

reach of a base station while making a call. The process by which a mobile telephone call is transferred from one base station to

another as the subscriber passes the boundary of a cell is called a handover. The Handover Ssuccess Rate (HOSR) more than 95% is

considered to be good

*In case of multiple call failure in similar geo location in given period of 60sec has been counted as one call failure

Operators not meeting benchmark

Operator Total Call Attempt Blocked Calls Blocked Call Rate* CSSR

Aircel 2G 514 22 4.28% 95.72%

Airtel 2G 496 12 2.42% 97.58%

Airtel 3G 431 3 0.70% 99.30%

BSNL 2G 515 18 3.50% 96.50%

BSNL 3G 373 18 4.83% 95.17%

IDEA 2G 453 13 2.87% 97.13%

IDEA 3G 439 9 2.05% 97.95%

Reliance 2G 476 17 3.57% 96.43%

Reliance CDMA 494 46 9.31% 90.69%

TATA 3G 384 11 2.86% 97.14%

Telenor 2G 523 12 2.29% 97.71%

Vodafone 2G 465 16 3.44% 96.56%

Vodafone 3G 435 9 2.07% 97.93%

Operator Total Call Established Total Call Drop CDR CCSR

Aircel 2G 492 22 4.47% 95.53%

Airtel 2G 484 9 1.86% 98.14%

Airtel 3G 428 10 2.34% 97.66%

BSNL 2G 497 28 5.63% 94.37%

BSNL 3G 355 54 15.21% 84.79%

IDEA 2G 440 50 11.36% 88.64%

IDEA 3G 430 49 11.40% 88.60%

Reliance 2G 459 15 3.27% 96.73%

Reliance CDMA 448 33 7.37% 92.63%

TATA 3G 373 13 3.49% 96.51%

Telenor 2G 511 20 3.91% 96.09%

Vodafone 2G 449 11 2.45% 97.55%

Vodafone 3G 426 13 3.05% 96.95%

Operators Total HO Attempt HO Failure HO Success HO Failure Rate HO Success Rate

Aircel 2G 1180 122 1058 10.34% 89.66%

Airtel 2G 1448 53 1395 3.66% 96.34%

Airtel 3G 6021 4 6017 0.07% 99.93%

BSNL 2G 1059 31 1028 2.93% 97.07%

BSNL 3G 1120 2 1118 0.18% 99.82%

IDEA 2G 1572 155 1417 9.86% 90.14%

IDEA 3G 3949 13 3936 0.33% 99.67%

Reliance 2G 1378 28 1350 2.03% 97.97%

Reliance CDMA 3730 0 3730 0.00% 100.00%

TATA 3G 5781 0 5781 0.00% 100.00%

Telenor 2G 1388 130 1258 9.37% 90.63%

Vodafone 2G 1131 54 1077 4.77% 95.23%

Vodafone 3G 7347 0 7347 0.00% 100.00%

16

Appendix

Ancillary Details

6. City-Level KPI details

Operators are not meeting benchmark

Call Events

Operators (Summary)

Aircel Airtel BSNL IDEA RCOM TATA Telenor Vodafone

2G 2G 3G 2G 3G 2G 3G 2G CDMA 3G 2G 2G 3G

Call Attempt (May-16) 514 496 431 515 373 453 439 476 494 384 523 465 435

Blocked Call Rate (May-16) 4.28% 2.42% 0.70% 3.50% 4.83% 2.87% 2.05% 3.57% 9.31% 2.86% 2.29% 3.44% 2.07%

CSSR (Accessibility) (May-16) 95.72% 97.58% 99.30% 96.50% 95.17% 97.13% 97.95% 96.43% 90.69% 97.14% 97.71% 96.56% 97.93%

Dropped Call Rate (May-16) 4.47% 1.86% 2.34% 5.63% 15.21% 11.36% 11.40% 3.27% 7.37% 3.49% 3.91% 2.45% 3.05%

Mobility HOSR (May-16) 89.66% 96.34% 99.93% 97.07% 99.82% 90.14% 99.67% 97.97% 100.00% 100.00% 90.63% 95.23% 100.00%

Rx Quality (May-16) 91.27% 96.05% 98.50% 90.86% 94.58% 87.86% 96.33% 92.40% 88.90% 93.97% 91.64% 90.45% 97.98%

17

Operator are meeting the benchmark