mtn report template_new

8/4/2019 MTN Report Template_New

http://slidepdf.com/reader/full/mtn-report-templatenew 1/29

Cellcite Solutions MTN Nigeria

1

MTN NIGERIA 3G BENCHMARKING REPORT

LOCATION : LEKKI PHASE 1

DATE : JULY 2011




2

TABLE OF CONTENTS

1 SECTION 1: Introduction……………………………………………………….....3

1.1Best Performing Network per KPI………………………………………………...4

1.2 Drive Test Route…………………………………………………………………...5

2 SECTION 2: Voice Call………………………………………………....................6

2.1 Voice Accessibility…………………………………………………………………6

2.2 Call Drop Rate……………………………………………………………………...7

2.3 Block Error Rate……………………………………………………………………8

2.4 Soft Handover Success Rate……………………………………………………..9

3 SECTION 3: Coverage/Video……………………………………........................11

3.1 Call Setup Success Rate………………………………………………………...11

3.2 Call Drop Rate…………………………………………………………………….12

3.3 Soft Handover Success Rate……………………………………………………13

3.4 Network Coverage..........................................................................................15

4 SECTION 4: SMS…………………………………………………………………...22

4.1 SMS Success Rate………………………………………………………………..22

4.2 Some Findings and recommendation…………………………………………..22

5. SECTION 5: Appendices…………………………………………………………24

5.1 Key Performance Indicator General Descriptions……………………………..24

5.2 List of Abbreviations………………………………………………………………29




3

1 SECTIONINTRODUCTION

The main purpose of conducting a competitive network benchmarking in Lekki phase1 was to determine the quality of UMTS voice provided by MTN Nigeria whencompare with other network service providers in the area.Benchmarking is a technique, in which a company accurately measures itsperformance against that of best in a class of companies, determines how thosecompanies achieved their performance levels and uses the information to improve itsown performance and excel the competitors. Subjects that can be benchmarkedinclude strategies, operations and processes. In telecom sector, the basic theme todo benchmarking is to compare your network with its competitors by using differentparameters in the big cities of the country. From benchmarking, companies can alsocheck the health of its network.

This report contains five (5) major sections in which many of them are divided intosubsections. Section 1 is an introduction of the report which presents an overview ofthe tests performed, observations taken and the results generated. It has anexecutive summary which is a comprehensive information regarding the networkhealth and the services and KPIs monitored over a decided drive route. Section 2has the details regarding the network Coverage/Voice Calls. Section 3 has thedetails regarding Video Calls. Section 4 shows SMS analysis. Section 5 contains alist of Appendices.

Equipments Used

TEMS Investigation, Version 12.0.1 (with Dongle)

HP Laptop,

GPS Receiver:

2 Sets of Mobiles




4

1.1 Best Performing Network per KPI

Executive Summary

ItemNo.

Voice Call KPIs MTN Airtel

1 Call Setup Success Rate (CSSR) 100% 66.67%

2 Call Drop Rate (CDR) 0% 50%

3 Call Success Rate (CSR) 100% 50%

4 DL BLER <=2% 81.84% 75.8%

5 Soft Handover Success Rate (SHO SR) 100% 97.42%

Video Call KPIs

6 Call Setup Success Rate (CSSR) 100% 100%

7 Call Drop Rate (CDR) 0% 6.35%

8 Call Success Rate (CSR) 100% 73.65%

9 DL BLER <=2% 86.01 89.73%

10 Soft Handover Success Rate (SHO SR) 99.46% 97.08%

Coverage KPIs

11 RSCP above -95 dBm 95.25% 99.9%

12 EcNo above -12 dB 84.35% 97.29%

13 UETxPower below 0 dBm 92.37% 94.46%

Item No. Voice Call KPIsBest Performing

Network

1 Call Setup Success Rate (CSSR) MTN

2 Call Drop Rate (CDR) MTN

3 Call Success Rate (CSR) MTN

4 Block Error Rate<% (BLER<2% ) MTN

5 Soft Handover Success Rate (SHO SR) MTN

Video Call KPIs

8 Call Setup Success Rate (CSSR) Same

9 Call Drop Rate (CDR) MTN

10 Call Success Rate (CSR) MTN

11 Block Error Rate<% (BLER<2% Airtel

12 Soft Handover Success Rate (SHO SR) MTN

Coverage KPIs

13 RSCP above -90 dBm Airtel

14 EcNo above -12 dB Airtel

15 UETxPower below 0 dBm Airtel




5

1.2 Drive Test Route

Note: The Drive test route is not plotted yet because of unavailability of the route plan.

Figure 1: Drive Test Route




6

2 SECTION 2: COVERAGE / VOICE CALLS

2.1 Voice Accessibility

Table 1: MTN Accessibility Stats

Accessibility Results - CS

Call Attempts 1

Successful RRC Connection Setups 1

Successful Call Setups 1

Failed Call Setups 0CS Call Re-establishment fail 0RRC Connection Setup Success rate 100%CS Call Setup Success rate 100%

Table 2: Airtel Accessibility Stats


Call Attempts 3

Successful RRC Connection Setups 4Successful Call Setups 2

Failed Call Setups 1

CS Call Re-establishment fail 0

RRC Connection Setup Success rate 100%

CS Call Setup Success rate 66.7%




7

Figure 2 : CSSR (Voice)

As seen in the chart, the accessibility statistics show that MTN is better than Airtel in the tested

area.

2.2 Call Drop Rate

Table 3: MTN Retainability Stats

Retainability Results - CS

Number of Drop Call 0

Drop Call Rate 0%

UE Tx Power (Max) 8.9

UE Tx Power (Mean) -13.87

UE Tx Power (Min) -46.8

DL BLER (Average) 82

DL BLER, 95th

Percentile 9.9

Table 4: Airtel Retainability stats



Drop Call Rate 50%

UE Tx Power (Max) -0.9

UE Tx Power (Mean) -24.37

UE Tx Power (Min) -46.1


DL BLER, 95th

Percentile 31.4

0%

20%

40%

60%

80%

100%

MTN AIRTEL

100%

66.70%

CSSR

CSSR




8

Figure 3: Voice Call Drop Rate

MTN drop call rate is better than that of Airtel in the driven area as can be seen in the chart

above.

2.1.3 Block Error Rate<2%

Table 5: BLER<2%

MTN Airtel

Block Error Rate <2% 82.93 75.8

Figure 4: BLER<2% (Voice)

0%

10%

20%

30%

40%

50%

MTN AIRTEL

0%

50%

CDR

CDR

72.00%

74.00%

76.00%

78.00%

80.00%

82.00%

84.00%

MTN AITEL

82.93%

75.80%

BLER<2%

BLER<2%




9

2.4 SHO Success Rate

Table 5 : MTN SHO stats

SHO Results - CS# e1a 139

# e1b 138# e1c 71# e1d -# Unknown -Total HO Events 348# Measurement Reports 546# Active Set Updates 348# Active Set Update Completes 348# Measurement Control 0

SHO Success Rate 100%Active Set Update Completion Rate 100%

Table 6: Airtel SHO Stats

SHO Results -CS

# e1a 299# e1b 295# e1c 83# e1d -# Unknown -

Total HO Events 677# Measurement Reports 759# Active Set Updates 677# Active Set Update Completes 663# Measurement Control 0SHO Success Rate 98.4%ActiveSet Update Completion Rate 98.38%




10

Figure 6: Voice SHO Success Rate

MTN network has 100% while Airtel has 97.42% in the test area. MTN performs better than Airtel

in term of SHO success rate as seen in the chart above.

3 SECTION 3: VIDEO

3.1 Call Setup Success Rate Video

Table 7: MTN video Accessibility stats


Call Attempts 12

Successful RRC Connection Setups 13Successful Call Setups 2

Failed Call Setups 9



CS Call Setup Success rate

96%

97%

97%

98%

98%

99%

99%

100%

100%

MTN AIRTEL

100%

97.42%

SHO SR

SHO SR




11

Table 8: Airtel Accessibility Stats


Call Attempts 63

Successful RRC Connection Setups 75

Successful Call Setups 7Failed Call Setups 56



CS Call Setup Success rate

Call Setup Success Rate

Figure 7 : CSSR (Video)

From the chart above, it shows that both MTN and Airtel perform excellently well in term of Call

Setup Success Rate.

3.2 Call Drop Rate

Table 9: MTN Video Retainability Stats



Drop Call Rate 0%

UE Tx Power (Max) 20.2

UE Tx Power (Mean) 9.5UE Tx Power (Min) -45.4

0%

20%

40%

60%

80%

100%

MTN AITEL

100% 100.00%

CSSR

CSSR




12


DL BLER, 95th

Percentile 30.3

Table 10: Airtel Video Retainability Stats

Figure 8: Call Drop Rate (Video)

CS Video call drop rate of MTN network is better in comparison with Airtel as seen in the Call

Drop Rate above.

3.3 SHO Success Rate

Table 11: MTN Video SHO stats

SHO Results - CS

# e1a 86# e1b 79# e1c 20# e1d -# Unknown -Total HO Events 185# Measurement Reports 229

0%

1%

2%

3%

4%

5%

6%

7%

MTN AITEL

0%

6.35%

CDR

CDR



Drop Call Rate 6.35%UE Tx Power (Max) 14.2UE Tx Power (Mean) -17.17UE Tx Power (Min) -35DL BLER (Average) 263DL BLER, 95

tPercentile 21.3




13

# Active Set Updates 185# Active Set Update Completes 184# Measurement Control 0SHO Success Rate 99.46%Active Set Update Completion Rate 99.45%

Table 12: Airtel Video SHO stats

SHO Results - CS

# e1a 64# e1b 45# e1c 24# e1d -# Unknown -Total HO Events 143# Measurement Reports 176

# Active Set Updates 133# Active Set Update Completes 129# Measurement ControlSHO Success Rate 97.07%Active Set Update Completion Rate 97.08

Figure 9: SHO SR (Video)

MTN network is having 99.46% while Airtel has 97.04% in the tested area which shows that MTN

performs better.

Table 13: Overall Video stats

UE Type Metric MTN Airtel

Video Service# Call Attempts 12 63

# Call Successes 12 7

95.50%

96.00%

96.50%

97.00%

97.50%

98.00%

98.50%

99.00%

99.50%

MTN AIRTEL

99.46%

97.07%

SHO SR

SHO SR




14

Metrics Call Setup Success Rate 100% 100%

Call Drop Rate 0% 6.35%

# SHO Events 185 143

Average BLER 479 263

Call Completion Success Rate 99.46% 97.08%

Figure 10: BLER <2% (Video)

Airtel is performing better in term of Block Error Rate <2% in comparison with MTN as seen in

the chart above.

84.00%

85.00%

86.00%

87.00%

88.00%

89.00%

90.00%

MTN AIRTEL

86.01%

89.73%

BLER<2%

BLER<2%




15

3.4 Network Coverage

Received Signal Code Power(RSCP)

Figure 11: Percentage of RSCP >-95dBm

FIGURE 10: MTN RSCP

92.00%

93.00%

94.00%95.00%

96.00%

97.00%

98.00%

99.00%

100.00%

MTN AIRTEL

95.25%

99.90%

Percentage of RSCP>-95dBm

Percentage of RSCP>-

95dBm




16

FIGURE 11: AIRTEL RSCP(dBm)

As seen in the plots Airtel network has better coverage in the tested area, 99.9% of coverage

route is covered by Airtel WCDMA signal with RSCP above -95dBm in comparison to 95.25%

coverage of MTN WCDMA signal.




17

Carrier -to-Noise Ratio

Figure 12: Percentage of Ec/No >-12dBm

FIGURE 12: MTN Ec/No

75.00%

80.00%

85.00%

90.00%

95.00%

100.00%

MTN AIRTEL

84.35%

97.29%

Percentage of Ec/No >-12dBm

Percentage of Ec/No >-

12dBm




18

FIGURE 13: AIRTEL Ec/No (dBm)

The signal quality (Ec/No) of Airtel is also better than MTN in the tested area. At driven routes

Airtel network has 97.29% samples with Ec/No above -12 dB, while MTN has 84.35%respectively.




19

UE Transmission Power

Figure 13: Percentage of UE Tx Power >0dBm

FIGURE 14: MTN UE Tx Power(DBm)

91.00%

91.50%

92.00%

92.50%

93.00%

93.50%

94.00%

94.50%

MTN AIRTEL

92.37%

94.46%

UE Tx Power <0dBm

UE Tx Power <0dBm




20

FIGURE 15: AIRTEL UE Tx Power (dBm)

As seen from UE Tx Power data, both Airtel and MTN are performing well in term of UE Tx

Power. The UE uses a bit less power while connected to both Airtel WCDMA network and MTN

WCDMA network. Though, Airtel is approximately 2% better than MTN (i.e Airtel is having94.46% in comparison with MTN that is having 92.37%.




21

4 SECTION 4: SMS

4.1 SMS Success Rate

Table 14: SMS success rate

SMS MTN Airtel

SMS Success Rate 100.00% 100.0%

Figure 16 : SMS Success Rate

4.3 Some Findings and Recommendations

MTN needs to lower down the level of pollution by adding more sites if possible, to improve the

network performance in the area. This will also improve the Block Error rate and coverage which

is not as good as Airtel network in the area.

0%

20%

40%

60%

80%

100%

MTN AIRTEL

100% 100%

SMS Success Rate

SMS Success Rate




22

5 SECTION 5: Appendices

5.1 Key Performance Indicator General Descriptions

Call Setup Success Rate (CSSR) = number of successful call setups / number of call setup

attempts

The Call Setup Success Rate Speech (CSR Speech) is defined as the ratio of successful call

setups, divided by the total number of call setup attempts for speech calls. It is the probability of

successfully initiating a speech call from an end user perspective.

CSSR Speech measured by Drive tests, presents the proportion of speech calls which are

successfully setup by the initiating party.

Calculated with Counter Statistics, CSR Speech is a product of the RRC Setup Success Rate

and the RAB Setup Success Rate for Speech within a cell or RNC.

This formula indicates the success rate of RAB establishments for Speech calls. Note that the

total number of attempts of RAB establishments is decreased by the number of attempts

outgoing via interRAT handover to GSM due to capacity reasons.

The pmNoRab EstablishAttemptSpeech counter is increased just after successful RAB Speech

Mapping, when a RANAP RAB Assignment Request message is received from the CN with

Speech RABs to be setup or modified, while pmNoRabEstablishSuccessSpeech is increased

after successful RAB Speech Establishment, after sending the RANAP RAB Assignment

Response message to the CN. Both counters will only be incremented in the SRNC for the Best

Cell. The pmNoDirRetryAtt counter is triggered when sending Relocation required message (after

Directed Retry to GSM was

initiated). The counter is stepped for the cell where the RRC connection was established and will

only be incremented in the SRNC.

This KPI can be computed on a per RNC basis as well as a per cell basis. When computing the

RNC result, individual cell counters should be summed on a RNC basis before applying KPI

calculation.

This is in contrast to applying the KPI equation to each cell and then taking an average across

the RNC. The latter can give poor performances.

This formula can give some strange fluctuation about percentage values if calculated on celllevel.




23

This behaviour has not been observed on RNC level. The KPI is useful to identify cells which

exhibit poor RAB Speech establishment.

NOTE:

This formula represents the percentage of successful RRC Connection Requests over the total

number of RRC Connection Requests decreased by the number of diversions due to the Load

Sharing feature during the establishments of RRC Connections, so that it is not counted as

access failure on WCDMA RAN.

As soon as an RRC Connection Request message is received by RNC from UE for any

Establishment Cause, pmTotNoRrcConnectReq counter is triggered and if UE has selected

anothercell (inter-frequency), due to Load Sharing mechanism, pmNoLoadSharingRrcConn

counter is stepped when the RRC message RRC Connection Reject is sent to the UE. Then

RNC asks permission both from RNC Main Processor (MP) load control and admission control

functions. Havingreceived permission to continue, allocates a DL channelization code and then

starts to set up a connection towards the RBS. Also the UE is requested to setup an RRC

connection with RRCConnection Setup message. Once NBAP Radio Link Restore Indication

message and RRCConnection Setup Complete message have been received by RNC, then the

RRC connection is considered to be successfully established. The counter

pmTotNoRrcConnectReq Success is now increased.

Call Drop Rate (CDR) = number of drops / number successful call setups

The Drop Call Rate Speech (DCR Speech) is defined as the ratio of abnormal call

disconnections, divided by the total number of successful call setups for speech calls. It is the

probability of successfully holding and terminating a call once it has been successfully initiated.

DCR Speech measured by Drive tests, presents the proportion of speech calls which are

successfully released after a specified holding time from when the call was successfully setup.

Calculated with Counter Statistics, DCR Speech is the ratio of abnormally released calls dividedby the sum of the abnormally and normal released Speech RABs within a cell or RNC.




24

The KPI defines the drop rate for RAB Speech. It can be seen as the ratio between all the

abnormal RAB Speech releases over the total number of all the RAB Speech releases

The pmNoNormalRabReleaseSpeech and pmNoSystemRabReleaseSpeech counters are only

increased due to a RANAP Iu Release Command or RAB Assignment Request message for

RABSpeech respectively with “release cause” = ’Normal Release’, ’Successful Relocation’,

’Resource Optimisation Relocation’, ’User Inactivity’ or ’release-due-to-UE-generated-signalling-

connection release’ for the first one or anything except the previous causes for the second one.

For UtranCell class these counters are incremented for the best cell in the Active Set in the

SRNC.

All the counters involved in the formula are available in two different MOs: UtranCell and IurLink.

If an analysis of RAB Drop Rate at Iur level or RNC level is required (instead of Cell level), It’s

possible to collect data related to these counters with MO “IurLink” or “UtranCell” respectively,and in the latter case aggregate them on all the cells belonging to the RNC. Note also that, in

case of activation of AMR, in this formula are present all the releases of AMR code RABs.

When computing the RNC result, individual cell counters should be summed on a RNC basis

before applying KPI calculation. This is in contrast to applying the KPI equation to each cell and

then taking an average across the RNC. The latter can give incorrect results.

Call Completion Success Rate (CSR) = CSSR * (1 - drop call rate)

The Call Completion Success Rate Speech (CSR Speech) is defined as the ratio of successfulnormal call disconnections, divided by the total number of call setup attempts for speech calls. It

is the probability of successfully initiating, holding and then terminating a speech call from an end

user perspective.

CSR Speech measured by Drive tests, presents proportion of speech calls which are

successfully set up, held and released by the initiating party.

Calculated with Counter Statistics, CSR Speech is a product of Accessibility [Call Setup Success

Rate (CSSR) Speech] and Retainability [1 - Drop Call Rate (DCR) Speech] within a cell or RNC.




25

Soft Handover Success Rate (SHO SR) = Number of successful SHOs/Number of SHO

attempts

100 *( pmRlAddSuccessBestCellSpeech/ pmRlAddAttemptsBestCellSpeech)

The KPI defines the success rate for Speech RL addition, defined for the source best cell in the

active set. It is calculated as the rate between the sum of RL addition success for speech RAB

and the sum of RL addition attempts for speech RAB.

The pmRlAddSuccessBestCellSpeech counter is increased when a new RL is attempted to be

added to an active set for a CS Speech RAB. The counter is increased after a handover proposalhas been received from the handover evaluation function or an RNSAP Radio Link Addition

Request has been received, admission control has been granted, DL channelization code has

been allocated for the new cell, RL Setup or RL Addition procedure is successfully completed

with the RBS, the Active Set

Update procedure is successfully completed with the UE, the necessary ATM resources have

been set up between RBS and RNC, and the appropriate parameters are available.

ThepmRlAddAttemptsBestCellSpeech counter is increased when a new RL is attempted to be

added to an active set for a CS Speech RAB. The counter is increased after a handover proposal

has been received from the handover evaluation function or an RNSAP Radio Link Addition

Request has been received. All these counters only monitor RLs for cells in the SRNC. If an RLis replaced in an active

set, this counter is also stepped.



calculation.


the RNC. The latter can give incorrect results.

Inter System Handover Success Rate (IRAT HO SR) = Number of successful IRAT HOs /

Number of IRAT HO attempts

The Inter Radio Access Technology Handover Success Rate for Speech (IRAT Speech) is

defined as the ratio of successful handovers to GSM over the number of attempted handovers to

GSM. It is the probability of successfully performing a handover from WCDMA to GSM and

continuing the call without end user interruption.




26

IRAT Speech Handovers can be measured either by Drive tests or Statistics data although due

to difficulties in drive test collection, Statistics is recommended. In the case of a drive test, a

normal drive within the coverage area may not have sufficient number of samples where IRAT

handover is performed and it is recommended that a separate drive route along the borders of

the coverage be

covered. Calculated with Statistics, IRAT Speech is a ratio of the number of successful

Handovers over the number of attempted handovers. The counters are only incremented if a

GSM relation exists between the Target and the Source Cell where the Source cell is the Best

Cell in the Active Set. This can be aggregated to Cell and RNC level

This KPI defines the percentage of successful non blind Inter Frequency Handovers for CS

Speech, over the total number of non blind Inter Frequency Handover attempts for CS speech.

The pmSuccNonBlindInterFreqHoCsSpeech12 Counter provides the number of successful non-

blind outgoing inter-frequency handovers for RAB = Conversational speech. After Handover

Evaluation has decided to initiate interfrequency handover for a CS speech RAB, the UE is

ordered to move to a new frequency by sending an RRC Physical Channel Reconfigurationmessage. When a successful response, RRC Physical Channel Reconfiguration Complete is

received from the UE, this counter is stepped. The counter is stepped for the best cell in the

active set but only if that cell has a cell relation towards the target cell. If the best cell in the active

set has no cell relation towards the target

cell, the counter is not stepped. Note: In case of a multi-RAB combination, the counters

corresponding to each type of RAB involved shall be incremented.

The pmAttNonBlindInterFreqHoCsSpeech12 provides the number of attempted non-blind

outgoinginter-frequency handovers for RAB = Conversational speech After Handover Evaluation




27

has decided to initiate inter frequency handover for a CS speech RAB, the UE is ordered to move

to a new frequency by sending an RRC Physical Channel Reconfiguration message. This

counter is stepped after that message is sent. The counter is stepped for the best cell in the

active set but only if that cell has a cell relation towards the target cell. If the best cell in the active

set has no cell relation towards the target cell, the counter is not stepped. Note1: The handover

evaluation decision is based on measurements performed by the UE on the target frequency.Note2: In case of a multi-RAB combination, the counters corresponding to each type of RAB

involved shall be incremented.



calculation.



Compressed Mode Time = Time spent in compressed mode / Full calls duration time

VIDEO

Call Setup Success Rate (CSSR)

The Call Setup Success Rate CS64 (CSR CS64) is defined as the ratio of successful call setups,

divided by the total number of call setup attempts for video calls. It is the probability of

successfully initiating a video call from an end user perspective.

CSSR CS64 measured by Drive tests, presents the proportion of video calls which are

successfully setup by the initiating party.

Calculated with Counter Statistics, CSSR CS64 is a product of the RRC Setup Success Rate and

the RAB Setup Success Rate for Video within a cell or RNC.

Call Drop Rate (CDR)

The Drop Call Rate CS64 (DCR CS64) is defined as the ratio of abnormal call disconnections,

divided by the total number of successful call setups for CS64 (video) calls. It is the probability of

successfully holding and terminating a video call once it has been successfully initiated.

DCR CS64 measured by Drive tests, presents the proportion of video calls which are

successfully released after a specified holding time from when the call was successfully setup.

Calculated with Counter Statistics, DCR CS64 is the ratio of abnormally released calls divided bythe sum of the abnormally and normal released calls for Video RABs within a cell or RNC.




28

Call Completion Success Rate (CSR)

The Call Completion Success Rate CS64 (CSR Video) is defined as the ratio of successful

normal call disconnections, divided by the total number of call setup attempts for video calls. It is

the probability of successfully initiating, holding and then terminating a video call from an end

user perspective.

CSR Video measured by Drive tests, presents proportion of speech calls which are successfully

setup, held and released by the initiating party.

Calculated with Counter Statistics, CSR Video is a product of Accessibility [Call Setup Success

Rate

(CSSR) Video] and Retainability [1 - Drop Call Rate (DCR) Video] within a cell or RNC.

Soft Handover Success Rate (SHO SR)

100 *( pmRlAddSuccessBestCellCsConvers/ pmRlAddAttemptsBestCellCsConvers)

The KPI defines the success rate for RL addition, defined for the source best cell in the active

set. It is calculated as the rate between the sum of RL addition success for CS64 conversational

RABs and the sum of RL addition attempts for CS64 conversational RABs.

The pmRlAddSuccessBestCellCsConvers counter is increased when a new RL is attempted to

be added to an active set for a conversational CS64 RAB. The counter is increased after a

handover proposal has been received from the handover evaluation function or an RNSAP Radio

Link Addition

Request has been received, admission control has been granted, DL channelization code has

been allocated for the new cell, RL Setup or RL Addition procedure is successfully completedwith the RBS, the Active Set Update procedure is successfully completed with the UE, the




necessary ATM resources have been set up between RBS and RNC, and the appropriate

parameters are available.

The pmRlAddAttemptsBestCellCsConvers counter is increased when a new RL is attempted to

be added to an active set for conversational CS 64 RAB. The counter is increased after a

handover proposal has been received from the handover evaluation function or an RNSAP RadioLink Addition

Request has been received. This counter only monitors RLs for cells in the SRNC. If an RL is

replaced in an active set, this counter is also stepped.



calculation.



5.2 List of Abbreviations

KPI Key Performance Indicator

CSSR Call Setup Success Rate

BLER Block Error Rate

SHO Soft Handover

RSCP Received Signal Code Power

EC/No Carrier- to- Noise Ratio

UE User Equipment

Tx Transmitter

mtn report template_new

Documents