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Regulatory Framework in India
Presentation
By
Asit Kadayan August 21, 2019
Regulatory Framework
• Network and Customer Service KPIs
• Benchmarks for each KPI to be met
• Values are reported by Telcos on quarterly basis for each service area
• In case, Telecom Operators fail to meet the benchmark, Financial Disincentives per KPI
• In case of repeat violations, amount of disincentive increased by 1.5 times (max. 2 times)
• Provision to audit the data submitted by Telcos
2
Regulatory Framework
• Provision to audit the data submitted by Telcos
• Live data is collected from the network
• Feedback is taken from the selective customers
• Independent Drive Tests are conducted
• 70 cities in a year
• Highways and Railway tracks
• Crowdsourced app is launched to take feedback from the customers
3
Network KPIs
• Network Availability: Base Station Shutdown time
• Network Accessibility: Call Setup Success Rate, Signalling & Traffic Channel
Congestions
• Retainability: Call Drop
• Point of Interconnect (PoI): Congestion
4
Customer Service Quality KPIs• Metering & Billing Credibility : Dispute cases less than 0.1%
• Resolution of Billing Complaints: Period of applying credit/ waiver (98% within 4
weeks)
• Response time to the customer for assistance : Accessibility of call centres/
customer care (95% within 90 seconds)
• Termination/ Closure of Services: Within 7 days
• Time taken for refund of deposits: After closure of services (100% within 6
weeks) 5
DROP CALL RATE (DCR)AVERAGE TO PERCENTILE
Methodology changed for DCR Assessment
Spatial Distribution
Temporal Distribution
Technology Agnostic
Which Pockets of network did not
perform well
Cell wise
On Which Days network did not
perform well
Day wise
All Access Technologies
KPIs aggregated
Consolidated
0.00
1.50
3.00
4.50
6.00
Day 1 Day 6 Day 11 Day 16Day 21 Day 26Day 31 Day 36Day 41 Day 46Day 51 Day 56Day 61 Day 66Day 71 Day 76Day 81 Day 86
0.00
1.25
2.50
3.75
5.00
Day 1 Day 6 Day 11Day 16Day 21Day 26Day 31Day 36Day 41Day 46Day 51Day 56Day 61Day 66Day 71Day 76Day 81Day 86
Drop Call Rate (DCR) of a Network (Temporal)Operator-1 Delhi
Jan-March 2019
0.00
2.50
5.00
7.50
10.00
Day 1 Day 6 Day 11Day 16Day 21Day 26Day 31Day 36Day 41Day 46Day 51Day 56Day 61Day 66Day 71Day 76Day 81Day 86
3.9%
6.37%
Cell_Q
2.8%
DCR
1.81%
2.8%
3.9%
6.37%Cell ID 2961
Cell ID 5331
Cell ID 2502
Cell ID 2961
Cell ID 5331
Cell ID 2502 QSD(90,90)Cell ID 13852
Drop Call Rate (DCR)
• Benchmarks
• QSD(90,90) ≦ 2%
• QTD(97,90) ≦ 3%
Cell D1 D2 D92 Rep Cell(Q)
CGI DCR DCR DCR
CGI DCR DCR DCR
CGI DCR DCR DCR
CGI DCR DCR DCR QSD
CGI DCR DCR DCR
Rep. Day(Q) QTD
• CellQ(90)= 90th Percentile value
• DaylQ(97)= 97th Percentile value
Representative Value for Day: Day(Q)
• Day (Q) • DayQ(97)= 97th Percentile value
Cell D1 D2 D92 Rep Cell(Q)
C1 0.7% 0.0% NAV ….. 2.8% 1.3% 1.3%
C2 2.4% 0.4% 1.6% ….. 0.9% 0.2% 1.6%
….. ….. ….. ….. ….. ….. …..C9081 NOP 1.7% 1.1% ….. NDM 0.6% QSD
….. ….. ….. ….. ….. ….. …..C15661 0.2% 0.1% 2.9% ….. 6.4% 1.5% 2.9%
Rep. Day(Q) QTD
• “Day_Q(97)" means Dat_Q(s) with s=97 and indicates the 97th percentile DCR value in the set of DCR values of all cells of the network for that particular a Day.
Spatial DistributionOperator-1 Delhi
Jan-March 2019
QSD(90,90)=1.81%Cell ID 13852
QTD(97,90)=2.01%Cell ID 32592
Temporal Distribution
Operator-1 Delhi
Jan-March 2019
Day 01
97 Percentile Value=1.9%
Day 02Cell with DCR > 5%
97 Percentile Value=1.99%
Temporal Distribution
Operator-1 Delhi
Jan-March 2019
Day 02
85 Percentile 90 Percentile
95 Percentile 97 Percentile
OTHER ASPECTSVOICE CALL QUALITY
VoLTE & CSFB
Purpose Parameter Definition Benchmark
Avoid Post Dialing Delay
Call setup time
Time interval (in seconds) between the end of dialling by the caller and the reception back by him of the appropriate ringing tone or recorded announcement. Equivalent to call set-up time, as defined in [ITU-T E.800]
<7 sec
Avoid Voice muting
PDCP SDU loss rate
Fraction of IP packet lost (not successfully received) on the Uplink & downlink ≥98%
WIRELESS DATA SPEED MEASUREMENTWHITE PAPER DATED 5TH OF FEBRUARY 2018
QoS Benchmarks for Wireless Data Speed
S. No. Parameter Benchmark
1 Service Activation/ Provisioning Within 4 hrs 95% Success Rate
2 Successful Data Trannsmission Download Attempts >80%
3 Successful Data Trannsmission Upload Attempts >75%
4 Minimum Download Speed To be measured for each plan and Reported to TRAI
5 Average Throughput for packet data >75% of the subscribed speed
6 Latency Data<250 ms
7 PDP Context Activation Success Rate >95%
8 Drop Rate <5%
Throughput experiences of four TSPs across time (Manual test)
00−03 03−06 06−09 09−12 12−15 15−18 18−21 21−24
TSP 1
Out
put(i
n M
bps)
0
5
10
15
20
25
30
00−03 03−06 06−09 09−12 12−15 15−18 18−21 21−24
TSP 2
Out
put(i
n M
bps)
0
5
10
15
20
25
30
00−03 03−06 06−09 09−12 12−15 15−18 18−21 21−24
TSP 3
Out
put(i
n M
bps)
0
5
10
15
20
25
30
00−03 03−06 06−09 09−12 12−15 15−18 18−21 21−24
TSP 4
Out
put(i
n M
bps)
0
5
10
15
20
25
30AverageMedian
Distribution of sample of four TSPs across time (Manual test)
00−03 03−06 06−09 09−12 12−15 15−18 18−21 21−24
TSP1
Cou
nt(in
thou
sand
s)
0
50
100
150
200
00−03 03−06 06−09 09−12 12−15 15−18 18−21 21−24
TSP2
Cou
nt(in
thou
sand
s)
0
50
100
150
200
00−03 03−06 06−09 09−12 12−15 15−18 18−21 21−24
TSP3
Cou
nt(in
thou
sand
s)
0
50
100
150
200
00−03 03−06 06−09 09−12 12−15 15−18 18−21 21−24
TSP4
Cou
nt(in
thou
sand
s)
0
50
100
150
200
Kernel Density plotManual test
5 NUMBER SUMMARY: LOWER QUARTILE, MEDIAN, UPPER QUARTILE, BOTH END POINTS OF WHISKER
BOX AND WHISKER PLOTRight-SkewedLeft-Skewed Symmetric
Mean Median ModeMean Median Mode Median MeanMode
Median 3 X largestX smallest QQ1
Right-SkewedLeft-Skewed Symmetric
1Median
31Median
3
1 Median 3
District wise Box and Whiskers plot for Delhi (Manual test)
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South South West West
North North East North West
Central East New Delhi
000102030405060708091011121314151617181920212223 000102030405060708091011121314151617181920212223 000102030405060708091011121314151617181920212223
0
25
50
75
100
0
25
50
75
100
0
25
50
75
100
hour
outp
ut.m
bps
STIPULATING REGULATORY REQUIREMENT FOR WIRELESS DATA SPEED
BOX PLOT BASED DETERMINATION OF SPEEDSAREA: CENTRAL DELHI TIME PERIOD: AUG-OCT2017
Median 3QQ1
FOR AN AREA, WE HAVE
Median 3QQ1
Median 3QQ1
Median 3QQ1
Median 3QQ1▸ 24 values of
Median
▸ 24 values of Upper Quartile
▸ 24 values of Lower Quartile
▸ 24 values of Highest
▸ 24 values of Lower
CAN WE HAVE5-POINT SUMMARY FOR AREA
DRIVE TESTMEAN OPINION SCORE
DRIVE TESTS
• Independent Drive Tests are conducted
• 70 cities in a year
• Highways and Railway tracks
• Only for transparency, No Financial Disincentives
26
Case Study: Airport & Metro Train Area
Runways and Apron AreasAirport Terminals
Dhaula Kuan
Airport Express Line Terminal Area
TERMINAL
!27
Mppa 62Aircrafts movements1200
Staff 40K
Poor QoS inside the Residential Buildings
• Permission to install infrastructure is given by Residential Welfare Associations (RWAs)
• Rent seeking models by Infrastructure Providers
• EMF apprehensions
• Illegal repeaters
• Jammers
28
Approach to improve QoS
• Case Study approach
• Identify systematic issues and take remedial measures
• Co-construct
• Instead of seeing as monetisation opportunity by other sectors there is a need to collaborate
29
Thanks
Crowd Sourced Data Other Crowd Sources (Data) ▪ Passive App ▪ Data Speed Feedback ▪ Environment Inputs ▪ Regular feedback from Railway/
Bus
RF Drive TestsTo corroborate observations ▪ Identified Problem Areas e.g. CRM,
CDR Analysis ▪ Enhanced RF Drive Test including
Active/ Passive Tests of Data and Voice
▪ Environement Inputs
Network KPIsTo correlate observations ▪ Identified Problem Areas ▪ Enhanced RF Drive Test including
Active/ Passive Tests of Data and Voice ▪ Environment Inputs
S.No. Name of Parameter Benchmark
(i) Network Availability(a) BTSs and eNode Bs Accumulated downtime (not available for service) ≤ 2%
(b) Worst affected BTSs and eNode Bs due to downtime ≤ 2%
(ii)Connection Establishment (Accessibility)
(a) Call Set-up Success Rate (within licensee's own network) Session Establishment Success Rate ≥ 95%
(b) SDCCH/ Paging Channel and RRC Congestion ≤ 1%
(c) TCH and Packet Switched E-RAB Congestion ≤ 2%
(iii)Connection Maintenance (Retainability)
(a) Call Drop and Voice over LTE Drop (IMS Session) Rate ≤ 2%
(b) Worst affected cells having more than 3% TCH drop (call drop) and Circuit Switched Voice Drop rate and Voice over LTE Drop (IMS Session)
≤ 3%
(c) connections with good voice quality and Voice over LTE Quality ≥ 95%
(iv) Point of Interconnection (POI) Congestion ( on individual POI) ≤ 0.5%
Network KPIs
S.No. Name of Parameter Benchmark AveragedCustomer Service Quality Parameters
(v) Metering and billing credibility – post paid
Not more than 0.1% of bills issued should be disputed over a billing cycle
One Billing Cycle
(vi) Metering and billing credibility –- pre-paidNot more than 1 complaint per 1000 customers
One Quarter
(vii) (a) Resolution of billing/ charging complaints98% within 4 weeks and 100% within 6 weeks
One Quarter
(b) Period of applying credit/ waiver/ adjustment to customer’s account from the date of resolution of complaints
within 1 week of resolution of complaint One Quarter
(viii)Response Time to the customer for assistance
(a) Accessibility of call centre/ customer care ≥ 95% One Quarter
(b)Percentage of calls answered by the operators(voice to voice) within 90 seconds
≥ 95% One Quarter
(ix) Termination/ closure of service ≤ 7 days One Quarter
(x)Time taken for refund of deposits after closures 100% within 60 days One Quarter
Parameters for Customer
Service Quality
0.00
1.25
2.50
3.75
5.00
Day 12 Day 25 Day 3 Day 39Day 37 Day 54Day 28Day 35 Day 18Day 23 Day 13Day 66 Day 31 Day 2 Day 33Day 36 Day 44Day 50Day 53 Day 45Day 78 Day 74Day 55 Day 79Day 61 Day 17Day 81Day 27 Day 63Day 51
0.00
1.25
2.50
3.75
5.00
Day 1 Day 4 Day 7 Day 10 Day 13Day 16 Day 19Day 22 Day 25Day 28 Day 31Day 34 Day 37Day 40 Day 43Day 46 Day 49Day 52 Day 55Day 58 Day 61Day 64 Day 67Day 70 Day 73Day 76 Day 79Day 82 Day 85Day 88
Drop Call Rate (DCR) of a CellOperator-1 Delhi Jan-March 2019
Cell_Q
2.8%
Cell ID 5331: Chronological order
Cell ID 5331: Sorted in ascending order