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Independent Drive Test Report
- September’16
Kolkata
Key performance indicators for most of the operators: Most of the operators have met the Call
Dropped Rate (CDR) benchmark of <=2% and also most of the operators have met the Call Setup
Success Rate (CSSR) benchmark of >=95% in compare to previous drive test (Dec’15).
Methodology:
Independent Drive test was conducted in Kolkata from 9:00 AM to 9:PM from 9th to 10th of September 2016. The total drive test covered in
Kolkata area was approximately 200 km over a period of 2 days. A total of ~5611 calls were made for seven 2G networks, six 3G networks and 2
CDMA networks covering eight operators.
1 2 3 4
City-Level
Performance
Area-Level
Performance Analysis Summary
and
Highlights
Date: 03 November 2016
5
Appendix I. Benchmarking KPIs
II. Coverage
III. Receive (Rx) Quality
IV. City-Level Ranking
V. City-Level KPI
The independent drive test has been carried out by M/s IMRB International on behalf of TRAI
Introduction
Introduction
Ancillary Details
Overview
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 9th
September 2016 to 10th September 2016 covering various locations in Kolkata . The performance of Aircel, Airtel, BSNL, Idea,
Vodafone, Reliance, Tata, MTS 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 Goa Area:
Independent Drive test was conducted in Mumbai to Goa area from 9:00 AM to 9:PM from 9th to 10th of September 2016. The total
drive test covered in Kolkata area was approximately 300 km over a period of 2 days. Total of ~5611 calls were made for seven 2G
networks, six 3G networks & two CDMA networks covering seven operators.
Roads and Areas covered in Kolkata is shown in the below map.
Below is the List of Areas Covered and Drive Routes
1
Day 1 Day 2
Harinavi South Dum Dum
Narendrapur Gangulipara
Rajpur sonarpur Noonegola Basti
Naktala Nainan Para
Sangato colony Palpara Noapara
Gandhi Colony Santi Nagar
Ashwini Nagar Government quarters
Shanti Nagar Belghoria
Regent estate ss roy Colony
Ganguly Bagan Kamarhati
Santhospur Panihati
Jadavpur University Subhas nagar
Poddar nagar Kulinpara
Safui Pura Deshpriya nagar
North Purbachal Badai
Ekdalia New barrakpur
Lake Market Chandpur
Natinal Library North Dum Dum
Victoria Memorial Netaji Subhas Chandra Bose Airport
Shibur Parjhat
Howarh bridge New town
Eden Garden Kadampukar
Phool Bagan
Bidhan Nagar
Drive test route
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 3G and
Tata 2G. Refer. Fig 1
Most of the operators have met the
Blocked Call Rate benchmark of
<=3%, except Reliance 3G and Tata
2G. Refer. Fig 2
Most of the operators met the Call
Drop Rate benchmark of <=2%,
except Aircel 2G, Airtel 3G, BSNL
3G, Reliance 3G and Tata 2G.
Refer. Fig 3
Most of the operators met the Rx
Quality Rate benchmark of >=95%,
except Aircel 2G, BSNL 2G and
TATA 2G.
Refer. Fig 4
Operator meeting the benchmark Operator not meeting the benchmark
2
Current Drive: September 2016
97.39% 98.09% 97.73% 99.14% 98.31% 98.16% 99.27% 97.23% 100.00% 97.29%
89.47% 86.87%
100.00% 98.55% 98.64%
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Idea
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MTS
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TATA
2G
TATA
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Fig 1. Call Setup Success Rate (%)
95%
2.61% 1.91% 2.27% 0.86% 1.69% 1.84% 0.73% 2.77%
0.00% 2.71%
10.53% 13.13%
0.00% 1.45% 1.36%
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Idea
3G
MTS
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TATA
2G
TATA
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Fig 2. Block Call Rate (%)
3%
2% 4.15%
1.67% 1.81% 2.32% 1.43%
8.13%
0.98% 1.99% 1.21% 1.67%
7.72%
12.86%
1.00% 0.25% 0.83%
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TATA
2G
TATA
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Fig 9. Call Drop Rate (%)
93.89%
98.56% 95.47%
97.29% 93.93%
98.05% 96.25%
99.52% 98.50% 96.97% 97.93%
90.93%
98.79% 97.49% 96.67%
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Fig 4. Rx Quality (%)
95%
1. City-Level Performance Comparison from Previous Comparison against previous drive test (May’16) – Most of the operators have shown
improvement in CSSR, CDR and Rx Quality.
Legends Current Drive: September 2016
Previous Drive: December 2015
Improvement from previous drive Degradation from previous drive
Most of the operators have shown
improvement in Call Setup Success
Rate performance, except Airtel 2G,
RCOM 3G and Tata 2G.
Refer Fig 5
Aircel 2G, Airtel 3G, Reliance 3G, Tata
2G and Tata CDMA have shown
degradation in performance compared
to previous drive. Refer Fig 6
All operators have shown improvement
in their performance in compare to the
previous drive test. Refer. Fig 7
Abbreviation / Definition: CSSR (benchmark > =95%) : Call Setup Success Rate
BCR (benchmark <=3%): Blocked Call Rate
CDR (benchmark <=2%): Call Drop Rate
Good Rx Quality (benchmark >=95%): 2G (RxQual <=5), 3G (EcNo >=-15dBm), CDMA (FER <=4%)
3
0.38% 1.59%
-0.95%
4.03% 2.79% 3.09%
1.58% 0.20%
-6.44%
-9.36%
0.18%
2.98% 2.17%
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BS
NL
2G
BS
NL
3G
IDE
A 2
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MTS
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Tata
2G
Tata
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VO
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Fig 5. CSSR difference from previous drive (%)
-1.5%
1.5% 2.0%
-0.3% 2.4% 0.7%
3.5%
0.2%
-5.3% -6.2%
-0.8%
8.3%
1.8%
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Air
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Air
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Air
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BS
NL
2G
BS
NL
3G
IDE
A 2
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MTS
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Tata
2G
Tata
CD
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VO
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2G
VO
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3G
Fig 6. CDR difference from previous drive (%)
9.3%
36.7%
8.1%
19.0%
10.3%
36.1%
10.4%
1.1%
23.5%
3.0% 1.5%
12.3%
21.0%
Air
cel 2
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Air
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Air
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Air
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BS
NL
2G
BS
NL
3G
IDE
A 2
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MTS
CD
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RC
OM
3G
Tata
2G
Tata
CD
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VO
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2G
VO
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3G
Fig 7. Rx Quality difference from previous drive (%)
2. Area-Level Performance
Area-Level Details
Legends
Drive test route covered in Kolkata city
Fig 8. Area Level map)
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%)
4
Threshold for each KPI are considered as per TRAI guidelines
Current Drive: September 2016
2. Area-Level Performance
Area-Level Details
Legends
Area Level 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%)
5
Areas meeting the benchmark Areas not meeting the benchmark
Threshold for each KPI are considered as per TRAI guidelines Current Drive: September 2016
Blocked Call Rate Aircel Airtel BSNL Idea MTS RCOM TATA Vodafone
North Dum Dum 1.3% 0.0% 8.3% 1.4% 0.0% 2.1% 1.3% 0.0%
South Dm Dum 2.7% 0.0% 4.3% 0.0% 0.0% 8.0% 3.4% 0.9%
Rajarhat 3.9% 3.1% 0.0% 2.9% 0.0% 6.0% 4.7% 1.9%
Bidhan Nagar 0.0% 3.4% 0.0% 5.0% 0.0% 0.0% 25.0% 4.9%
Kolkata Central 3.1% 1.6% 1.3% 1.4% 0.0% 4.8% 5.5% 1.8%
Rajpur Sonarpur 0.7% 1.6% 0.8% 1.5% 0.0% 14.4% 8.9% 0.0%
Call Dropped Rate Aircel Airtel BSNL Idea MTS RCOM TATA Vodafone
North Dum Dum 5.4% 0.0% 4.5% 0.0% 2.5% 0.0% 2.6% 0.0%
South Dum Dum 1.9% 0.0% 6.1% 1.8% 1.7% 3.8% 4.4% 0.9%
Rajarhat 8.1% 4.3% 13.4% 2.0% 2.6% 10.1% 2.9% 0.0%
Bidhan Nagar 3.3% 3.5% 4.9% 3.5% 0.0% 3.5% 21.2% 1.7%
Kolkata Central 2.1% 2.9% 2.0% 1.4% 0.6% 3.9% 6.5% 0.7%
Rajpur Sonarpur 0.7% 0.0% 4.3% 0.8% 1.6% 3.4% 8.7% 0.0%
Rx Quality Aircel Airtel BSNL Idea MTS RCOM TATA Vodafone
North Dum Dum 93.5% 97.2% 93.0% 98.4% 93.1% 98.6% 92.8% 96.9%
South Dum Dum 95.4% 97.9% 91.1% 99.2% 97.2% 99.2% 93.9% 98.0%
Rajarhat 92.6% 96.5% 87.5% 97.8% 92.4% 96.6% 90.7% 96.8%
Bidhan Nagar 94.9% 92.3% 92.7% 96.7% 98.3% 98.4% 91.6% 96.2%
Kolkata Central 95.2% 96.0% 95.0% 96.2% 95.9% 96.0% 93.6% 96.8%
Rajpur Sonarpur 98.1% 96.2% 97.6% 98.3% 95.5% 98.9% 90.3% 97.7%
Call Setup Success Rate Aircel Airtel BSNL Idea MTS RCOM TATA Vodafone
North Dum Dum 98.7% 100.0% 91.7% 98.6% 100.0% 97.9% 98.7% 100.0%
South Dum Dum 97.3% 100.0% 95.7% 100.0% 100.0% 92.0% 96.6% 99.1%
Rajarhat 96.1% 96.9% 100.0% 97.1% 100.0% 94.0% 95.3% 98.1%
Bidhan Nagar 100.0% 96.6% 100.0% 95.0% 100.0% 100.0% 75.0% 95.1%
Kolkata Central 96.9% 98.4% 98.7% 98.6% 100.0% 95.2% 94.5% 98.2%
Rajpur Sonarpur 99.3% 98.4% 99.2% 98.5% 100.0% 85.6% 91.1% 100.0%
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).
3. Analysis
Legends Current Drive: September 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%)
Threshold for each KPI are considered as per TRAI guidelines
Operators
No. of Cells
with RLT <=
40
No. of Cells
with RLT > 40
Current
CDR
CDR, If all
Cells assume
RLT <= 40
Aircel 100.00% 0.00% 4.15% 4.15%
Airtel 100.00% 0.00% 1.81% 1.81%
BSNL 100.00% 0.00% 1.43% 1.43%
Idea 100.00% 0.00% 0.98% 0.98%
Reliance 98.20% 1.80% 1.67% 1.67%
TATA 94.10% 5.90% 12.86% 12.86%
Vodafone 100.00% 0.00% 0.25% 0.25%
6
3. Analysis
Detailed Analysis of Operators
Aircel 2G (CDR : 4.15%, Rx Quality : 93.89%, )
• Poor quality of network is clear indication of high call Dropped rate. Call
drops happen in all over areas
BSNL 3G (CDR : 8.13%, HOSR : 89.36%, Coverage : 37.38%)
• Poor coverage and poor HOSR is clear indication of high call drop in network.
• Rajarhat & Rajpur Sonarpur are the key contribution are of drop calls. These
areas have 57.69% dropped call of total dropped call in all areas.
Legends Current Drive: September 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%)
7
Parameter
Highlighted areas
( Rajarhat & Rajpur
Sonarpur)
Rest of
Kolkata
# call drops 15 11
Threshold for each KPI are considered as per TRAI guidelines
Parameter Whole Kolkata
# call drops 17
RCOM 3G (CDR : 7.72%, BCR : 10.53% Coverage : 60.02%)
• RCOM 3G has call dropped all across the network which is clear
indication of poor network coverage. Kolkata central is the key area where
most of the calls are dropped (42.86%).
• RCOM 3G performance have been decreases in compare to previous drive
test for CDR, CSSR and BCR.
Parameter Whole Kolkata
# call drops 21
3. Analysis
Detailed Analysis of Operators
TATA 2G (CDR : 12.86%, BCR : 13.13%, Coverage : 55.30%, Quality : 90.93%)
• Bidhan Nagar, Kolkata Central and Rajpur Sonarpur are the key
contributed areas of dropped calls. Dropped Calls in these area is
82.50% of total dropped calls in all areas
• Poor Coverage & poor Quality of network is clear indication of high call
drop rate.
• Tata 2G performance have been decreases in compare to previous drive
test for CDR, CSSR and BCR.
Legends Current Drive: September 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%)
8
Threshold for each KPI are considered as per TRAI guidelines
Parameter
Highlighted areas (
Kolkata Central , Bidhan
Nagar, Rajpur Sonarpur)
Rest of
Kolkata
# call drops 33 7
4. Summary & Highlights
Summary & Highlights
Most of the operators met the Call Drop Rate benchmark of <=2%, except Aircel 2G, Airtel 3G, BSNL
3G, Reliance 3G and TATA 2G.
Key Highlights
• Most of the operators have shown improvement in CDR from pervious drive, except Aircel 2G, Airtel 3G, Reliance 3G
and Tata 2G.
• Most of the operators meet the call drop rate benchmark of <=2%, except Aircel 2G, Airtel 3G, BSNL 3G, Reliance 3G
and TATA 2G.
• BSNL 3G, Reliance 3G and TATA 2G have call drop rate of >7%. The high drop rate is clear indication for urgent need
of improvement in order to deliver reasonable levels of services.
Fig 9. Call Drop Comparison
9
4.2 1.7 1.8 2.3 1.4
8.1 1.0 1.2
7.7
12.9
1.0 0.3
0.8
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5. Appendix
Ancillary Details
I. Benchmarking KPI Details
II. Coverage Details
III. Receive (Rx) Quality Details
IV. City-Level Ranking and KPI details
V. City-Level KPI details
Table of Contents in Appendix
10
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
11
Coverage % Accessibility % Retainability % Mobility % Rx Quality %
Aircel 2G 81.87% 97.39% 95.85% 97.53% 93.89%
Aircel 3G 89.25% 98.09% 98.33% 99.37% 98.56%
Airtel 2G 95.01% 97.73% 98.19% 96.82% 95.47%
Airtel 3G 98.55% 99.14% 97.68% 99.76% 97.29%
BSNL 2G 92.84% 98.31% 98.57% 91.80% 93.93%
BSNL 3G 37.38% 98.16% 91.88% 89.36% 98.05%
IDEA 2G 78.56% 99.27% 99.02% 98.64% 96.25%
IDEA 3G 70.10% 97.23% 98.01% 99.87% 99.52%
MTS CDMA 97.61% 100.00% 98.79% 100.00% 98.50%
RCOM 2G 81.98% 97.29% 98.33% 95.82% 96.97%
RCOM 3G 60.02% 89.47% 92.28% 98.17% 97.93%
Tata 2G 55.30% 86.87% 87.14% 96.43% 90.93%
Tata CDMA 98.03% 100.00% 99.00% 100.00% 98.79%
VODA 2G 88.08% 98.55% 99.75% 98.63% 97.49%
VODA 3G 82.01% 98.64% 99.17% 99.85% 96.67%
0.00%
25.00%
50.00%
75.00%
100.00%
KPI Distribution
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 are not meeting benchmark
12
Aircel 2G Aircel 3G Airtel 2G
Airtel 3G BSNL 2G BSNL 3G
0.00%
25.00%
50.00%
75.00%
100.00%
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Air
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Air
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Bsn
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Bsn
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Idea
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Idea
3G
MTS
CD
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TATA
2G
TATA
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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 81.87%
Aircel 3G 89.25%
Airtel 2G 95.01%
Airtel 3G 98.55%
Bsnl 2G 92.84%
Bsnl 3G 37.38%
Idea 2G 78.56%
Idea 3G 70.10%
MTS CDMA 97.61%
Reliance 2G 81.98%
Reliance 3G 60.02%
TATA 2G 55.30%
TATA CDMA 98.03%
Vodafone 2G 88.08%
Vodafone 3G 82.01%
Appendix
Ancillary Details
3. Coverage Details
13
IDEA 3G
Reliance 2G
IDEA 2G MTS CDMA
Reliance 3G TATA 2G
TATA CDMA Vodafone 2G Vodafone 3G
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 Quality 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 are not meeting benchmark
14
Aircel 2G Aircel 3G Airtel 2G
Airtel 3G BSNL 2G BSNL 3G
0.00%
25.00%
50.00%
75.00%
100.00%
Air
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Air
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Air
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Air
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Bsn
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Bsn
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Idea
2G
Idea
3G
MTS
CD
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Re
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Re
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TATA
2G
TATA
CD
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Vo
da
fon
e 3
G
Rx Quality Distribution
RxQual 6 to 7, EcNo <-15 dBm, FER <= 4% RxQual 0 to 5, EcNo >=-15 dBm, FER > 4%
Operators Rx Quality
Aircel 2G 93.89%
Aircel 3G 98.56%
Airtel 2G 95.47%
Airtel 3G 97.29%
Bsnl 2G 93.93%
Bsnl 3G 98.05%
Idea 2G 96.25%
Idea 3G 99.52%
MTS CDMA 98.50%
Reliance 2G 96.97%
Reliance 3G 97.93%
TATA 2G 90.93%
TATA CDMA 98.79%
Vodafone 2G 97.49%
Vodafone 3G 96.67%
Appendix
Ancillary Details
4. Receive (Rx) Quality Details
15
Idea 2G MTS CDMA Idea 3G
Reliance 2G Reliance 3G TATA 2G
TATA CDMA Vodafone 2G Vodafone 3G
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
16
Operators Total Call Attempt Blocked Calls Blocked Call Rate* CSSR
Aircel 2G 421 11 2.61% 97.39%
Aircel 3G 366 7 1.91% 98.09%
Airtel 2G 396 9 2.27% 97.73%
Airtel 3G 348 3 0.86% 99.14%
BSNL 2G 355 6 1.69% 98.31%
BSNL 3G 326 6 1.84% 98.16%
IDEA 2G 410 3 0.73% 99.27%
IDEA 3G 361 10 2.77% 97.23%
MTS CDMA 414 0 0.00% 100.00%
RCOM 2G 369 10 2.71% 97.29%
RCOM 3G 304 32 10.53% 89.47%
Tata 2G 358 47 13.13% 86.87%
Tata CDMA 401 0 0.00% 100.00%
Vodafone 2G 414 6 1.45% 98.55%
Vodafone 3G 368 5 1.36% 98.64%
Operators Total Call Established Total Call Drop CDR CCSR
Aircel 2G 410 17 4.15% 95.85%
Aircel 3G 359 6 1.67% 98.33%
Airtel 2G 387 7 1.81% 98.19%
Airtel 3G 345 8 2.32% 97.68%
BSNL 2G 349 5 1.43% 98.57%
BSNL 3G 320 26 8.13% 91.88%
IDEA 2G 407 4 0.98% 99.02%
IDEA 3G 351 7 1.99% 98.01%
MTS CDMA 414 5 1.21% 98.79%
RCOM 2G 359 6 1.67% 98.33%
RCOM 3G 272 21 7.72% 92.28%
Tata 2G 311 40 12.86% 87.14%
Tata CDMA 401 4 1.00% 99.00%
Vodafone 2G 408 1 0.25% 99.75%
Vodafone 3G 363 3 0.83% 99.17%
Operators Total HO Attempt HO Failure HO Success HO Failure Rate HO Success Rate
Aircel 2G 930 23 907 2.47% 97.53%
Aircel 3G 2372 15 2357 0.63% 99.37%
Airtel 2G 1511 48 1463 3.18% 96.82%
Airtel 3G 5521 13 5508 0.24% 99.76%
BSNL 2G 1269 104 1165 8.20% 91.80%
BSNL 3G 2312 246 2066 10.64% 89.36%
IDEA 2G 1618 22 1596 1.36% 98.64%
IDEA 3G 4478 6 4472 0.13% 99.87%
MTS CDMA 4261 0 4261 0.00% 100.00%
RCOM 2G 958 40 918 4.18% 95.82%
RCOM 3G 2242 41 2201 1.83% 98.17%
Tata 2G 757 27 730 3.57% 96.43%
Tata CDMA 5995 0 5995 0.00% 100.00%
Vodafone 2G 1823 25 1798 1.37% 98.63%
Vodafone 3G 6115 9 6106 0.15% 99.85%
Appendix
Ancillary Details
6. City-Level KPI details
17
Call Events
Operators (Summary)
Aircel Airtel BSNL IDEA MTS RCOM TATA Vodafone
2G 3G 2G 3G 2G 3G 2G 3G CDMA 2G 3G 2G CDMA 2G 3G
Call Attempt
Sep' 16 421 366 396 348 355 326 410 361 414 369 304 358 401 414 368
Dec' 15 435 515 455 511 513 487 476 NA 497 NA 513 451 554 451 481
Sep' 15 513 NA 533 NA 538 NA 464 NA 516 NA NA 500 502 538 NA
Blocked Call Rate
Sep' 16 2.61% 1.91% 2.27% 0.86% 1.69% 1.84% 0.73% 2.77% 0.00% 2.71% 10.53% 13.13% 0.00% 1.45% 1.36%
Dec' 15 2.99% 3.50% 1.32% 4.89% 4.48% 4.93% 2.31% NA 0.20% NA 4.09% 3.77% 0.18% 4.43% 3.53%
Sep' 15 10.14% NA 18.76% NA 3.72% NA 10.56% NA 1.94% NA NA 4.60% 1.00% 2.79% NA
CSSR (Accessibility)
Sep' 16 97.39% 98.09% 97.73% 99.14% 98.31% 98.16% 99.27% 97.23% 100.00% 97.29% 89.47% 86.87% 100.00% 98.55% 98.64%
Dec' 15 97.01% 96.50% 98.68% 95.11% 95.52% 95.07% 97.69% NA 99.80% NA 95.91% 96.23% 99.82% 95.57% 96.47%
Sep' 15 89.86% NA 81.24% NA 96.28% NA 89.44% NA 98.06% NA NA 95.40% 99.00% 97.03% NA
Dropped Call Rate
Sep' 16 4.15% 1.67% 1.81% 2.32% 1.43% 8.13% 0.98% 1.99% 1.21% 1.67% 7.72% 12.86% 1.00% 0.25% 0.83%
Dec' 15 2.61% 3.22% 3.79% 2.06% 3.88% 8.86% 4.52% NA 1.41% NA 2.44% 6.68% 0.18% 8.58% 2.59%
Sep' 15 2.60% NA 1.85% NA 5.60% NA 0.48% NA 1.58% NA NA 2.31% 2.01% 2.49% NA
HOSR (Mobility)
Sep' 16 97.53% 99.37% 96.82% 99.76% 91.80% 89.36% 98.64% 99.87% 100.00% 95.82% 98.17% 96.43% 100.00% 98.63% 99.85%
Dec' 15 98.25% 97.82% 95.63% 96.49% 93.16% 92.86% 98.22% NA 100.00% NA 98.95% 95.86% 100.00% 97.15% 97.25%
Sep' 15 95.87% NA 98.03% NA 96.46% NA 98.84% NA 100.00% NA NA 94.66% 100.00% 97.90% NA
Network Quality
Sep' 16 93.89% 98.56% 95.47% 97.29% 93.93% 98.05% 96.25% 99.52% 98.50% 96.97% 97.93% 90.93% 98.79% 97.49% 96.67%
Dec' 15 84.62% 61.87% 87.39% 78.33% 83.62% 62.00% 85.84% NA 97.44% NA 74.48% 87.96% 97.26% 85.16% 75.66%
Sep' 15 83.78% NA 87.44% NA 86.14% NA 86.43% NA 95.64% NA NA 84.87% 95.10% 92.78% NA
Operators are meeting the benchmark Operators are not meeting the benchmark