ZXUR 9000 GSMBase Station Controller

KPI Reference

Version: V6.50.10

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Revision History

Revision No. Revision Date Revision Reason

R1.0 2012-04-28 First Edition(V6.50.10)

Serial Number: SJ-20120313111345-016

Publishing Date: 2012-04-28(R1.0)

ContentChapter 1 About This Manual.................................................................... 1-1

Chapter 2 Introduction of KPI in CS Domain ........................................... 2-1

2.1 Availability ......................................................................................................... 2-1

2.1.1 SDCCH Availability................................................................................... 2-1

2.1.2 Number of Available SDCCH .................................................................... 2-2

2.1.3 Number of Available TRX.......................................................................... 2-2

2.1.4 TCH Availability........................................................................................ 2-3

2.1.5 Number of Available TCH ......................................................................... 2-3

2.1.6 Number of Defined TCH ........................................................................... 2-4

2.1.7 Number of Available TCH/F ...................................................................... 2-4

2.1.8 Number of Available TCH/H ...................................................................... 2-5

2.1.9 Number of Defined SDCCH ...................................................................... 2-5

2.2 Accessibility ....................................................................................................... 2-6

2.2.1 Number of SDCCH Attempts..................................................................... 2-6

2.2.2 Number of SDCCH Congestion ................................................................. 2-6

2.2.3 SDCCH Congestion Rate.......................................................................... 2-7

2.2.4 SDCCH Drop Rate ................................................................................... 2-7

2.2.5 Number of SDCCH Seizure Failure ........................................................... 2-8

2.2.6 Number of SDCCH Seizure Success ......................................................... 2-8

2.2.7 Number of SDCCH Allocation Failure ........................................................ 2-9

2.2.8 Number of SDCCH Drops ....................................................................... 2-10

2.2.9 Number of TCH Attempts (Excluding Handover)....................................... 2-10

2.2.10 Number of TCH Attempts (including Handover) .......................................2-11

2.2.11 Number of TCH Congestion (Excluding Handover) ..................................2-11

2.2.12 Number of TCH Congestion (including Handover) .................................. 2-12

2.2.13 Number of TCH Seizure Success (Excluding Handover) ......................... 2-13

2.2.14 Number of TCH Seizure Success (Including Handover) .......................... 2-13

2.2.15 Number of TCH Allocation Failures (Excluding Handover)....................... 2-14

2.2.16 Number of TCH Allocation Failures (Including Handover) ........................ 2-15

2.2.17 TCH Congestion Rate (Excluding Handover).......................................... 2-16

2.2.18 TCH Congestion Rate (Including Handover)........................................... 2-17

2.2.19 TCH Assignment Failure Rate ............................................................... 2-18

2.2.20 TCH Allocation Failure Rate .................................................................. 2-18

I

2.2.21 Number of TCH/F Assignment Success ................................................. 2-19

2.2.22 Number of TCH/F Assignment Attempt .................................................. 2-20

2.2.23 Number of TCH Seizure Failure (For Assignment) .................................. 2-20

2.2.24 Call Set-up Success Rate (CSSR)......................................................... 2-21

2.2.25 Average Busy Time of CS Time Slot Allocation....................................... 2-22

2.3 Reliability ......................................................................................................... 2-22

2.3.1 TCH Call Drop Rate (Excluding Handover)............................................... 2-22

2.3.2 TCH Call Drop Rate (Including Handover)................................................ 2-23

2.3.3 Number of TCH Drops ............................................................................ 2-24

2.3.4 Traffic Call Drop Rate ............................................................................. 2-24

2.3.5 TCH Drop rate Due To Transcoder Failure ............................................... 2-25

2.4 Traffic .............................................................................................................. 2-25

2.4.1 SDCCH Traffic ....................................................................................... 2-25

2.4.2 Average TCH Traffic Per Channel............................................................ 2-26

2.4.3 TCH Traffic ............................................................................................ 2-26

2.4.4 TCH/F Traffic ......................................................................................... 2-27

2.4.5 TCH/H Traffic ......................................................................................... 2-27

2.5 Mobility............................................................................................................ 2-28

2.5.1 Handover Success Rate ......................................................................... 2-28

2.5.2 Dual-band Handover Success Rate......................................................... 2-28

2.5.3 Number of Handover Requests ............................................................... 2-29

2.5.4 Number of Handover Success................................................................. 2-29

2.5.5 Number of Dual-band Handover Requests ............................................... 2-30

2.5.6 Number of Dual-band Handover Success ................................................ 2-30

2.5.7 Incoming Handover Success Rate........................................................... 2-31

2.5.8 Outgoing Handover Success Rate........................................................... 2-32

2.5.9 Handover Attempt Rate .......................................................................... 2-32

2.5.10 Number of Internal Handover Success................................................... 2-33

2.5.11 Number of Intra-cell Handover Failure.................................................... 2-33

2.5.12 Intra-cell Handover Success Rate.......................................................... 2-34

2.5.13 Intra-BSC Incoming Handover Success Rate ......................................... 2-34

2.5.14 Intra-BSC Outgoing Handover Success Rate ......................................... 2-35

2.5.15 Inter-BSC Incoming Handover Success Rate ......................................... 2-35

2.5.16 Inter-BSC Outgoing Handover Success Rate ......................................... 2-36

2.5.17 HO Downlink Quality Share................................................................... 2-36

2.5.18 HO Uplink Quality Share ....................................................................... 2-37

2.5.19 HO Downlink Level Share ..................................................................... 2-38

II

2.5.20 HO Uplink Level Share ......................................................................... 2-38

2.5.21 HO Power Budget Share....................................................................... 2-39

2.5.22 SDCCH Location Update Share ............................................................ 2-40

2.5.23 SDCCH SMS share .............................................................................. 2-40

2.5.24 SDCCH Supplementary Services Share................................................. 2-41

2.6 Measurement Result ........................................................................................ 2-41

2.6.1 DL Quality 0~5 Share ............................................................................. 2-41

2.6.2 UL Quality 0~5 Share ............................................................................. 2-42

2.6.3 Timing Advance 0~2 Share ..................................................................... 2-42

2.6.4 Timing Advance 2~6 Share ..................................................................... 2-43

2.6.5 Timing Advance 6~10 Share ................................................................... 2-44

2.6.6 Timing Advance 10~14 share.................................................................. 2-44

2.6.7 Timing Advance 14~16 share.................................................................. 2-45

2.6.8 Timing Advance 16~20 share.................................................................. 2-46

2.6.9 Timing Advance 20~22 share.................................................................. 2-47

2.6.10 Timing Advance 22~26 share ................................................................ 2-47

2.6.11 Timing Advance 26~30 share ................................................................ 2-48

2.6.12 Timing Advance 30~42 share ................................................................ 2-49

2.6.13 Timing Advance 42~63 share ................................................................ 2-49

2.6.14 Number of Average Idle TCH In IB1....................................................... 2-50

2.6.15 Number of Average Idle TCH In IB2....................................................... 2-51

2.6.16 Number of Average Idle TCH In IB3....................................................... 2-51

2.6.17 Number of Average Idle TCH In IB4....................................................... 2-52

2.6.18 Number of Average Idle TCH In IB5....................................................... 2-52

Chapter 3 Introduction of KPI in PS Domain ........................................... 3-1

3.1 Payload ............................................................................................................. 3-1

3.1.1 UL GPRS Payload (Transmitted & Retransmitted) ...................................... 3-1

3.1.2 DL GPRS Payload (Transmitted & Retransmitted) ...................................... 3-2

3.1.3 UL EDGE Payload (Transmitted & Retransmitted) ...................................... 3-2

3.1.4 DL EDGE Payload (Transmitted & Retransmitted) ...................................... 3-3

3.2 Throughput ........................................................................................................ 3-4

3.2.1 UL GPRS Throughput............................................................................... 3-4

3.2.2 DL GPRS Throughput............................................................................... 3-5

3.2.3 UL EDGE Throughput............................................................................... 3-5

3.2.4 DL EDGE Throughput............................................................................... 3-6

3.3 LLC ................................................................................................................... 3-6

3.3.1 DL LLC Signaling Frame Discard Rate ...................................................... 3-6

III

3.3.2 DL LLC GPRS Data Frame Discard Rate................................................... 3-7

3.3.3 DL LLC EDGE Data Frame Discard Rate................................................... 3-7

3.4 TBF................................................................................................................... 3-8

3.4.1 UL TBF Establishment Success Rate ........................................................ 3-8

3.4.2 DL TBF Establishment Success Rate ........................................................ 3-8

3.4.3 UL Signaling TBF Share ........................................................................... 3-9

3.4.4 DL Signaling TBF Share ......................................................................... 3-10

3.4.5 UL GPRS Data TBF Share ..................................................................... 3-10

3.4.6 DL GPRS Data TBF Share ......................................................................3-11

3.4.7 UL Signaling TBF Failure Rate .................................................................3-11

3.4.8 DL Signaling TBF Failure Rate ................................................................ 3-12

3.4.9 UL GPRS Data TBF Failure Rate ............................................................ 3-12

3.4.10 DL GPRS Data TBF Failure Rate .......................................................... 3-13

3.4.11 UL EDGE Data TBF Failure Rate........................................................... 3-14

3.4.12 DL EDGE Data TBF Failure Rate .......................................................... 3-14

3.4.13 UL GPRS Data TBF Throughput ........................................................... 3-15

3.4.14 DL GPRS Data TBF Throughput ........................................................... 3-15

3.4.15 UL GPRS Data TBF Establishment Share on PACCH............................. 3-16

3.4.16 DL GPRS Data TBF Establishment Share on PACCH............................. 3-16

3.4.17 UL EDGE Data TBF Establishment Share on PACCH............................. 3-17

3.4.18 DL EDGE Data TBF Establishment Share on PACCH............................. 3-17

3.4.19 UL EDGE Data TBF Throughput ........................................................... 3-18

3.4.20 DL EDGE Data TBF Throughput ........................................................... 3-18

3.5 RLC ................................................................................................................ 3-19

3.5.1 UL PDCH Usage .................................................................................... 3-19

3.5.2 DL PDCH Usage .................................................................................... 3-20

3.5.3 Abis Bandwidth Usage............................................................................ 3-20

3.5.4 UL RLC Data Throughput ....................................................................... 3-21

3.5.5 UL RLC Data Throughput per PDCH ....................................................... 3-21

3.5.6 DL RLC Data Throughput ....................................................................... 3-22

3.5.7 DL RLC Data Throughput Per PDCH....................................................... 3-22

3.5.8 UL GPRS RLC Retransmission Rate ....................................................... 3-23

3.5.9 DL GPRS RLC Retransmission Rate ....................................................... 3-23

3.5.10 UL EDGE RLC Retransmission Rate ..................................................... 3-24

3.5.11 DL EDGE RLC Retransmission Rate ..................................................... 3-24

3.5.12 UL PDCH RLC Share ........................................................................... 3-25

3.5.13 DL PDCH RLC Share ........................................................................... 3-25

IV

3.5.14 UL GPRS CS-1 Block Share ................................................................. 3-26

3.5.15 UL GPRS CS-2 Block Share ................................................................. 3-26

3.5.16 UL GPRS CS-3 Block Share ................................................................. 3-27

3.5.17 UL GPRS CS-4 Block Share ................................................................. 3-28

3.5.18 DL GPRS CS-1 Block Share ................................................................. 3-28

3.5.19 DL GPRS CS-2 Block Share ................................................................. 3-29

3.5.20 DL GPRS CS-3 Block Share ................................................................. 3-29

3.5.21 DL GPRS CS-4 Block Share ................................................................. 3-30

3.5.22 UL GPRS CS-1 Data Share .................................................................. 3-30

3.5.23 UL GPRS CS-2 Data Share .................................................................. 3-31

3.5.24 UL GPRS CS-3 Data Share .................................................................. 3-32

3.5.25 UL GPRS CS-4 Data Share .................................................................. 3-32

3.5.26 DL GPRS CS-1 Data Share .................................................................. 3-33

3.5.27 DL GPRS CS-2 Data Share .................................................................. 3-33

3.5.28 DL GPRS CS-3 Data Share .................................................................. 3-34

3.5.29 DL GPRS CS-4 Data Share .................................................................. 3-35

3.5.30 UL EDGE MCS-1 Block Share .............................................................. 3-35

3.5.31 UL EDGE MCS-2 Block Share .............................................................. 3-36

3.5.32 UL EDGE MCS-3 Block Share .............................................................. 3-36

3.5.33 UL EDGE MCS-4 Block Share .............................................................. 3-37

3.5.34 UL EDGE MCS-5 Block Share .............................................................. 3-38

3.5.35 UL EDGE MCS-6 Block Share .............................................................. 3-38

3.5.36 UL EDGE MCS-7 Block Share .............................................................. 3-39

3.5.37 UL EDGE MCS-8 Block Share .............................................................. 3-40

3.5.38 UL EDGE MCS-9 Block Share .............................................................. 3-40

3.5.39 DL EDGE MCS-1 Block Share .............................................................. 3-41

3.5.40 DL EDGE MCS-2 Block Share .............................................................. 3-42

3.5.41 DL EDGE MCS-3 Block Share .............................................................. 3-42

3.5.42 DL EDGE MCS-4 Block Share .............................................................. 3-43

3.5.43 DL EDGE MCS-5 Block Share .............................................................. 3-44

3.5.44 DL EDGE MCS-6 Block Share .............................................................. 3-44

3.5.45 DL EDGE MCS-7 Block Share .............................................................. 3-45

3.5.46 DL EDGE MCS-8 Block Share .............................................................. 3-46

3.5.47 DL EDGE MCS-9 Block Share .............................................................. 3-46

3.5.48 UL EDGE MCS-1 Data Share................................................................ 3-47

3.5.49 UL EDGE MCS-2 Data Share................................................................ 3-48

3.5.50 UL EDGE MCS-3 Data Share................................................................ 3-48

V

3.5.51 UL EDGE MCS-4 Data Share................................................................ 3-49

3.5.52 UL EDGE MCS-5 Data Share................................................................ 3-50

3.5.53 UL EDGE MCS-6 Data Share................................................................ 3-50

3.5.54 UL EDGE MCS-7 Data Share................................................................ 3-51

3.5.55 UL EDGE MCS-8 Data Share................................................................ 3-52

3.5.56 UL EDGE MCS-9 Data Share................................................................ 3-53

3.5.57 DL EDGE MCS-1 Data Share................................................................ 3-53

3.5.58 DL EDGE MCS-2 Data Share................................................................ 3-54

3.5.59 DL EDGE MCS-3 Data Share................................................................ 3-55

3.5.60 DL EDGE MCS-4 Data Share................................................................ 3-56

3.5.61 DL EDGE MCS-5 Data Share................................................................ 3-56

3.5.62 DL EDGE MCS-6 Data Share................................................................ 3-57

3.5.63 DL EDGE MCS-7 Data Share................................................................ 3-58

3.5.64 DL EDGE MCS-8 Data Share................................................................ 3-59

3.5.65 DL EDGE MCS-9 Data Share................................................................ 3-59

Chapter 4 Referance KPI............................................................................ 4-1

4.1 UL GPRS Traffic ................................................................................................ 4-2

4.2 DL GPRS Traffic ................................................................................................ 4-3

4.3 UL EDGE Traffic ................................................................................................ 4-3

4.4 DL EDGE Traffic ................................................................................................ 4-4

4.5 UL RLC Retransmission Rate (CS-1)................................................................... 4-4

4.6 UL RLC Retransmission Rate (CS-2)................................................................... 4-5

4.7 UL RLC Retransmission Rate (CS-3)................................................................... 4-5

4.8 UL RLC Retransmission Rate (CS-4)................................................................... 4-6

4.9 DL RLC Retransmission Rate (CS-1)................................................................... 4-6

4.10 DL RLC Retransmission Rate (CS-2)................................................................. 4-7

4.11 DL RLC Retransmission Rate (CS-3) ................................................................. 4-7

4.12 DL RLC Retransmission Rate (CS-4)................................................................. 4-8

4.13 DL&UL RLC Retransmission Rate (CS-1) .......................................................... 4-8

4.14 DL&UL RLC Retransmission Rate (CS-2) .......................................................... 4-9

4.15 DL&UL RLC Retransmission Rate (CS-3) ........................................................ 4-10

4.16 DL&UL RLC Retransmission Rate (CS-4) ........................................................ 4-10

4.17 UL GPRS Retransmission Rate........................................................................4-11

4.18 DL GPRS Retransmission Rate........................................................................4-11

4.19 UL&DL GPRS Retransmission Rate ................................................................ 4-12

4.20 UL RLC Retransmission Rate (MCS-1) ............................................................ 4-13

4.21 UL RLC Retransmission Rate (MCS-2) ............................................................ 4-13

VI

4.22 UL RLC Retransmission Rate (MCS-3) ............................................................ 4-14

4.23 UL RLC Retransmission Rate (MCS-4) ............................................................ 4-14

4.24 UL RLC Retransmission Rate (MCS-5) ............................................................ 4-15

4.25 UL RLC Retransmission Rate (MCS-6) ............................................................ 4-15

4.26 UL RLC Retransmission Rate (MCS-7) ............................................................ 4-16

4.27 UL RLC Retransmission Rate (MCS-8) ............................................................ 4-16

4.28 UL RLC Retransmission Rate (MCS-9) ............................................................ 4-17

4.29 DL RLC Retransmission Rate (MCS-1) ............................................................ 4-18

4.30 DL RLC Retransmission Rate (MCS-2) ............................................................ 4-18

4.31 DL RLC Retransmission Rate (MCS-3) ............................................................ 4-19

4.32 DL RLC Retransmission Rate (MCS-4) ............................................................ 4-19

4.33 DL RLC Retransmission Rate (MCS-5) ............................................................ 4-20

4.34 DL RLC Retransmission Rate (MCS-6) ............................................................ 4-20

4.35 DL RLC Retransmission Rate (MCS-7) ............................................................ 4-21

4.36 DL RLC Retransmission Rate (MCS-8) ............................................................ 4-21

4.37 DL RLC Retransmission Rate (MCS-9) ............................................................ 4-22

4.38 DL&UL RLC Retransmission Rate (MCS-1)...................................................... 4-23

4.39 DL&UL RLC Retransmission Rate (MCS-2)...................................................... 4-23

4.40 DL&UL RLC Retransmission Rate (MCS-3)...................................................... 4-24

4.41 DL&UL RLC Retransmission Rate (MCS-4)...................................................... 4-24

4.42 DL&UL RLC Retransmission Rate (MCS-5)...................................................... 4-25

4.43 DL&UL RLC Retransmission Rate (MCS-6)...................................................... 4-26

4.44 DL&UL RLC Retransmission Rate (MCS-7)...................................................... 4-26

4.45 DL&UL RLC Retransmission Rate (MCS-8)...................................................... 4-27

4.46 DL&UL RLC Retransmission Rate (MCS-9)...................................................... 4-27

4.47 UL EDGE Retransmission Rate....................................................................... 4-28

4.48 DL EDGE Retransmission Rate....................................................................... 4-29

4.49 UL&DL EDGE Retransmission Rate ................................................................ 4-29

4.50 DL&UL GPRS CS-1 Block Share..................................................................... 4-30

4.51 DL&UL GPRS CS-2 Block Share..................................................................... 4-31

4.52 DL&UL GPRS CS-3 Block Share..................................................................... 4-32

4.53 DL&UL GPRS CS-4 Block Share..................................................................... 4-32

4.54 DL&UL GPRS CS-1 Data Share...................................................................... 4-33

4.55 DL&UL GPRS CS-2 Data Share...................................................................... 4-34

4.56 DL&UL GPRS CS-3 Data Share...................................................................... 4-34

4.57 DL&UL GPRS CS-4 Data Share...................................................................... 4-35

4.58 DL&UL EDGE MCS-1 Block Share .................................................................. 4-36

VII

4.59 DL&UL EDGE MCS-2 Block Share .................................................................. 4-37

4.60 DL&UL EDGE MCS-3 Block Share .................................................................. 4-38

4.61 DL&UL EDGE MCS-4 Block Share .................................................................. 4-39

4.62 DL&UL EDGE MCS-5 Block Share .................................................................. 4-40

4.63 DL&UL EDGE MCS-6 Block Share .................................................................. 4-41

4.64 DL&UL EDGE MCS-7 Block Share .................................................................. 4-42

4.65 DL&UL EDGE MCS-8 Block Share .................................................................. 4-43

4.66 DL&UL EDGE MCS-9 Block Share .................................................................. 4-44

4.67 DL&UL EDGE MCS-1 Data Share ................................................................... 4-45

4.68 DL&UL EDGE MCS-2 Data Share ................................................................... 4-46

4.69 DL&UL EDGE MCS-3 Data Share ................................................................... 4-47

4.70 DL&UL EDGE MCS-4 Data Share ................................................................... 4-48

4.71 DL&UL EDGE MCS-5 Data Share ................................................................... 4-49

4.72 DL&UL EDGE MCS-6 Data Share ................................................................... 4-50

4.73 DL&UL EDGE MCS-7 Data Share ................................................................... 4-51

4.74 DL&UL EDGE MCS-8 Data Share ................................................................... 4-52

4.75 DL&UL EDGE MCS-9 Data Share ................................................................... 4-53

Glossary .......................................................................................................... I

VIII

Chapter 1About This ManualPurpose

This manual introduces the definitions, formulas, and influence factors of common KPI,and introduces the typical cases in KPI optimization project.

Intended Audience

l System Engineerl Test Engineerl Planning Engineer

What Is in This Manual

This manual contains the following chapters.

Chapter Description

Chapter 1 Introduction of KPI

in CS Domain

Introduces descriptions, definitions, formulas, and units for several

kinds of KPI in CS domain.

Chapter 2 Introduction of KPI

in PS Domain

Introduces description, definition, formula, and unit for several kinds

of KPI in PS domain.

Chapter 3 Reference KPI Lists some reference KPIs.

1-1

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Chapter 2Introduction of KPI in CSDomainThis chapter introduces descriptions, definitions, formulas, and units of different KPI typesin CS domain.

Table of Contents

Availability ..................................................................................................................2-1Accessibility ...............................................................................................................2-6Reliability..................................................................................................................2-22Traffic .......................................................................................................................2-25Mobility.....................................................................................................................2-28Measurement Result ................................................................................................2-41

2.1 Availability

2.1.1 SDCCH Availability

Description

This statistic provides the percentage of available SDCCH.

Definition

Percentage of SDCCH availability equals to number of available SDCCH divided bynumber of online defined SDCCH.

Counter Formula

Type

Percentage

Basis

Cell

2-1

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ZXUR 9000 GSM KPI Reference

2.1.2 Number of Available SDCCH

Description

This statistic provides the number of SDCCH channels that can be normally assigned in acell.

Definition

Number of available SDCCH includes the channel in use and usable channels currently inidle mode, that is, occupied and idle SDCCH channels.

Counter Formula

Type

Counter

Basis

Cell

2.1.3 Number of Available TRX

Description

This statistic provides the number of all usable TRXs defined in the cell.

Definition

The number of all usable TRXs defined in the cell.

Counter Formula

Type

Counter

Basis

Cell

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Chapter 2 Introduction of KPI in CS Domain

2.1.4 TCH Availability

Description

This statistic provides the percentage of available TCH.

Definition

TCH availability equals to number of available TCH divided by number of defined TCH(including available number and unavailable number).

Counter Formula

Type

Percentage

Basis

Cell

2.1.5 Number of Available TCH

Description

This statistic provides the number of available TCH channels, including the number ofavailable dynamic GPRS service channels (including the channels in use, and usable butin idle state).

Definition

The number of available TCH equals to the number of available dynamic defined TCH plusthe number of static defined TCH.

Counter Formula

Type

Counter

2-3

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Basis

Cell

2.1.6 Number of Defined TCH

Description

This statistic provides the number of defined TCH.

Definition

The number of defined TCH equals to the number of available TCH (both dynamic andstatic) plus the number of unavailable TCH (both dynamic and static).

Counter Formula

Type

Counter

Basis

Cell

2.1.7 Number of Available TCH/F

Description

This statistic provides the number of available TCH channels, including the number ofavailable dynamic GPRS service channels (including the channels in use and usable butin idle state) and full rate channels, excluding half rate channels.

Definition

The number of available TCH equals to the number of available dynamic defined TCH plusthe number of static defined TCH.

Counter Formula

Type

Counter

2-4

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Chapter 2 Introduction of KPI in CS Domain

Basis

Cell

2.1.8 Number of Available TCH/H

Description

This statistic provides the number of available half rate TCH in the cell.

Definition

The number of available TCH equals to the number of available dynamic defined TCH plusthe number of static defined TCH.

Counter Formula

Type

Counter

Basis

Cell

2.1.9 Number of Defined SDCCH

Description

This statistic provides the number of defined SDCCH in the cell, including available andunavailable channels.

Definition

The number of defined SDCCH equals to the number of available plus the number ofunavailable SDCCHs.

Counter Formula

Type

Counter

Basis

Cell

2-5

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2.2 Accessibility

2.2.1 Number of SDCCH Attempts

Description

This statistic provides the number of SDCCH seizure request within counting period.It counts channel requests received from MS on BSS, where, establishment processindicates SDCCH is allocated. (Attempts include normal originated call, location update,call re-establishment, IMSI request and separation, request allocating SDCCH by SMS,and assigning TCH as SDCCH for very early allocation).

Definition

The number of SDCCH attempts equals to the number of SDCCH seized attempts plusthe number of TCH seized attempts while assigning signaling channel (including TCH/Fand TCH/H).

Counter Formula

Type

Counter

Basis

Cell

2.2.2 Number of SDCCH Congestion

Description

This statistic provides the number of congestion caused by unavailable SDCCH resourcesin SDCCH attempts within the counting period. Send Immediate Assignment Rejectmessage aiming for SDCCH from BSC to MS; when this message is used to reject morethan one channel requests, corresponding times (up to 4) must be counted based on theinformation therein.

Definition

The number of SDCCH congestion equals to the number of SDCCH seized requests plusthe number of TCH seized attempt failures while assigning signaling channel (includingTCH/F and TCH/H).

2-6

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Counter Formula

Type

Counter

Basis

Cell

2.2.3 SDCCH Congestion Rate

Description

This statistic provides the percentage of attempts to allocate an SDCCH that is blocked dueto non availability of SDCCH resources. This statistic includes incoming SDCCH handoverattempts.

Definition

SDCCH congestion equals to the number of SDCCH congestion divided by the number ofSDCCH attempts.

Counter Formula

Type

Percentage

Basis

Cell

2.2.4 SDCCH Drop Rate

Description

This statistic provides the percentage of SDCCH drops.

Definition

SDCCH drop rate equals to the number of SDCCH drops divided by the number of SDCCHattempts.

2-7

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Counter Formula

Type

Percentage

Basis

Cell

2.2.5 Number of SDCCH Seizure Failure

Description

This statistic provides the number of congestion caused by unavailable SDCCH resourcesin SDCCH attempts. It counts the Immediate assignment reject message sent from BSCto MS.

Definition

The number of SDCCH seizure failure equals to the number of SDCCH seizure failure onassignment plus the number of SDCCH seizure failure on handover.

Counter Formula

Type

Counter

Basis

Cell

2.2.6 Number of SDCCH Seizure Success

Description

This statistic provides the number of congestion caused by unavailable SDCCH resourcesin SDCCH attempts. It counts the Immediate assignment reject message sent from BSCto MS.

2-8

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Definition

The number of SDCCH seizure failure equals to the number of SDCCH seizure failure onassignment plus the number of SDCCH seizure failure on handover.

Counter Formula

Type

Counter

Basis

Cell

2.2.7 Number of SDCCH Allocation Failure

Description

This statistic provides the number of SDCCH allocation failure in SDCCH attempts withincounting period. It counts the number of Channel Request (cause is to apply for SDCCH)minus the number of Immediate Assignment for SDCCH.

Definition

The number of SDCCH allocation failure equals to the sum of the number of SDCCHcongestion, the number of SDCCH allocation failure on assignment, and the number ofTCH (including TCH/F and TCH/H) allocation failure on assigning SDCCH.

Counter Formula

Type

Counter

Basis

Cell

2-9

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2.2.8 Number of SDCCH Drops

Description

This statistic provides the number of drops after successful SDCCH allocation.

Definition

The number of drops caused by radio link failure, LAPD disconnection, and handoverfailure on SDCCH

Counter Formula

Type

Counter

Basis

Cell

2.2.9 Number of TCH Attempts (Excluding Handover)

Description

This statistic provides the number of TCH attempts after seizing SDCCH. It countsAssignment Requests sent from MSC to BSS. (Attempts include calling and calledattempts to establish connection, excluding the case to assign TCH as SDCCH duringearly allocation and different handover cases.

Definition

The number of TCH attempts equals to the number of TCH (including TCH/F and TCH/H)seizure attempts while assigning voice channel and the number of TCH (including TCH/Fand TCH/H) seizure attempts while assigning data channel.

Counter Formula

Type

Counter

Basis

Cell

2-10

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2.2.10 Number of TCH Attempts (including Handover)

Description

This statistic provides the number of TCH attempts after seizing SDCCH. It countsallocation requests and handover requests (external handover) sent from MSC to BSC,handover command message sent from BSC to MS (internal handover) AssignmentRequest + Handover Request (cell handover controlled by MSC, External HO) +Handover Command (Intra-cell handover controlled by BSC), internal HD. (includingthe number of all types of handover attempts (intra-cell, intra-BSC, inter-BSC). Attemptsinclude calling and called attempts to establish connection, including different handoverand direct retry cases, excluding the case to assign TCH as SDCCH during earlyallocation.

Definition

The number of TCH (including TCH/F and TCH/H) attempts (including handover) equalsto the number of TCH seizure attempts while assigning voice channel, voice channelhandover, assigning data channel, and data channel handover.

Counter Formula

Type

Counter

Basis

Cell

2.2.11 Number of TCH Congestion (Excluding Handover)

Description

This statistic provides the number of congestion due to no TCH resource and queueovertime after seizing SDCCH. It counts allocation failure (where, due to non availability ofradio resource) + clear request (where, due to non availability of radio resource) sent fromBSS to MSC. (It includes the number of congestion due to no TCH resource and queueovertime after the calling and called sides seize SDCCH, this excludes the case to assignTCH channel as SDCCH during early allocation, and excluding different handovers, butincluding direct retry.

2-11

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Definition

The number of TCH congestion equals to the number of TCH (including TCH/F and TCH/H)attempt failures while assigning voice channel and the number of TCH (including TCH/Fand TCH/H) seizure attempts while assigning data channel.

Counter Formula

Type

Counter

Basis

Cell

2.2.12 Number of TCH Congestion (including Handover)

Description

This statistic provides the number of congestion due to no TCH resource and queueovertime while calling TCH after seizing SDCCH. It counts incoming Handover Failure (noradio resource available) + Assignment Failure (no radio resource) + Clear Request (noradio resource available) messages. (including the number of all handover failure causedby no TCH resource (intra-cell, intra-BSC, inter-BSC). The number of congestion includesthat caused by no TCH resource after the calling and called sides seize SDCCH, thisexcludes the case to assign TCH channel as SDCCH during early allocation, includingdifferent handovers and direct retry case.

Definition

The number of TCH congestion (including handover) equals to the number of TCH seizureattempt failures while assigning voice channel, voice channel handover, assigning datachannel, and data channel handover.

Counter Formula

Type

Counter

2-12

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Basis

Cell

2.2.13 Number of TCH Seizure Success (Excluding Handover)

Description

This statistic provides the number of calling or called assignment TCH success within acounting cycle. It counts Assignment Complete message. (excluding different handoversand direct retry.

Definition

The number of TCH seizure equals to the number of success while assigning TCH(including TCH/F and TCH/H) as voice channel plus the number of success whileassigning TCH (including TCH/F and TCH/H) as data channel.

Counter Formula

Type

Counter

Basis

Cell

2.2.14 Number of TCH Seizure Success (Including Handover)

Description

This statistic provides the number of calling or called assignment TCH success withina counting cycle. It counts Assignment Complete + Handover Complete message.(Including different handovers, excluding direct retry)

Definition

The number of TCH seizure (including handover) equals to the number of TCH seizure(excluding handover) plus the number of handover success (including handover amongintra-cell, intra-BSC, and inter-BSC).

2-13

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Counter Formula

Type

Counter

Basis

Cell

2.2.15 Number of TCH Allocation Failures (Excluding Handover)

Description

This statistic provides the number of TCH allocation failures after seizing SDCCH within acounting cycle. It counts allocation failure message Assignment Failure + Clear Request(radio interface failure) sent from BSS to MSC. (TCH allocation failures include the caseof TCH allocation attempt failure after the calling and called sides seize SDCCH (radiointerface failure), this excludes the case to assign TCH as SDCCH during early allocationand different handover cases, including all trigger factors for assignment failure message.

Definition

The number of TCH allocation failure (excluding handover) equals to the sum of numberof TCH congestion (excluding handover), number of TCH (including TCH/F and TCH/H)allocation failures caused by channel activation failure, BTS connection failure, BIUconnection failure, TCU connection failure while assigning voice and data channels, andthe number of TCH (including TCH/F and TCH/H) assignment failure as voice and datachannels.

2-14

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Counter Formula

Type

Counter

Basis

Cell

2.2.16 Number of TCH Allocation Failures (Including Handover)

Description

This statistic provides the number of all TCH allocation failures to call TCH after seizingSDCCH within a count cycle. It counts incoming Handover Failure + Assignment Failuremessage. (Congestion includes the case of TCH establishment attempt failure after thecalling and called sides seize SDCCH, this excludes the case to assign TCH as SDCCHduring early allocation, including different handover and direct retry cases.

Definition

The number of TCH allocation failure (including handover) equals to the sum of numberof TCH congestion (including handover), the number of TCH (including TCH/F andTCH/H) allocation failures caused by channel activation failure, BTS connection failure,BIU connection failure, TCU connection failure while assigning voice and data channels,oice and data channel handover, and the number of TCH (including TCH/F and TCH/H)assignment failure as voice and data channels.

2-15

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Counter Formula

Type

Counter

Basis

Cell

2.2.17 TCH Congestion Rate (Excluding Handover)

Description

The statistic provides the percentage of all requests for TCH resources (originations) whichfail due to non availability of TCH resources.

2-16

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Definition

TCH congestion rate (excluding handover) equals to the number of TCH congestion(excluding handover) divided by the number of TCH attempts (excluding handover).

Counter Formula

Type

Percentage

Basis

Cell

2.2.18 TCH Congestion Rate (Including Handover)

Description

This statistic provides TCH congestion rate (including handover). This statistic providesthe percentage of all requests for TCH resources (originations and handover) which faildue to non availability of TCH resources.

Definition

TCH congestion rate (including handover) equals to the number of TCH congestion(including handover) divided by the number of TCH attempts (including handover).

Counter Formula

Type

Percentage

Basis

Cell

2-17

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2.2.19 TCH Assignment Failure Rate

Description

This statistic provides the percentage of TCH assignment failure rate.

Definition

TCH assignment failure rate equals to the number of TCH assignment failures divided bythe number of TCH attempts (including handover).

Counter Formula

Type

Percentage

Basis

Cell

2.2.20 TCH Allocation Failure Rate

Description

This statistic provides the percentage of unsuccessful full rate and half rate TCH allocationswithin a cell, for both call originations and handover.

Definition

TCH assignment failure rate equals to the number of TCH assignment failure (includinghandover) divided by the number of TCH assignment request (including handover).

2-18

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Counter Formula

Type

Percentage

Basis

Cell

2.2.21 Number of TCH/F Assignment Success

Description

This statistic provides the number of TCH assignment attempt success after seizingSDCCH. It counts Assignment Complete message.

2-19

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Definition

The number of TCH/F assignment success equals to the sum of assignment success whileassigning TCH/F as signaling channel, voice channel, and data channel.

Counter Formula

Type

Counter

Basis

Cell

2.2.22 Number of TCH/F Assignment Attempt

Description

This statistic provides the number of TCH assignment attempts after seizing SDCCH. Itcounts Assignment cmd message.

Definition

The number of TCH/F assignment attempts equals to the number of TCH/F assignmentsuccess plus the number of TCH/F assignment failure.

Counter Formula

Type

Counter

Basis

Cell

2.2.23 Number of TCH Seizure Failure (For Assignment)

Description

This statistic provides the number of congestion due to no TCH resource in TCH attemptsafter seizing SDCCH.

2-20

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Definition

The number of TCH seizure failure (for assignment) equals to the sum of TCH (includingTCH/F and TCH/H) seizure attempt failure while assigning signaling channel, voicechannel, and data channel.

Counter Formula

Type

Counter

Basis

Cell

2.2.24 Call Set-up Success Rate (CSSR)

Description

This statistic provides the percentage of call attempts that result in a successful TCHaccess. Network accesses which do not require a TCH are excluded; for example, locationupdates, SMS, and Supplementary Service attempts.

Definition

Call set-up success rate equals to the product of (1-drop rate at signaling channel)multiplied by (1-TCH congestion rate (excluding handover)) and (1-TCH assignmentfailure rate).

Counter Formula

2-21

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ZXUR 9000 GSM KPI Reference

Type

Percentage

Basis

Cell

2.2.25 Average Busy Time of CS Time Slot Allocation

Description

This statistic provides the arithmetic mean of usy time for CS time slot in a cell.

Definition

Average busy time of CS time slot allocation equals to TCH busy time divided by thenumber of TCH seizure success.

Counter Formula

Type

Second

Basis

Cell

2.3 Reliability

2.3.1 TCH Call Drop Rate (Excluding Handover)

Description

This statistic provides the percentage of MSs which, having successfully accessed aTCH, subsequently experience an abnormal release caused by either radio or equipmentproblems.

2-22

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Definition

TCH call drop rate (excluding handover) equals to the number of TCH call drop divided bythe number of TCH seizure (excluding handover).

Counter Formula

Type

Percentage

Basis

Cell

2.3.2 TCH Call Drop Rate (Including Handover)

Description

This statistic provides the percentage of MSs which, having successfully accessed aTCH, subsequently experience an abnormal release caused by either radio or equipmentproblems. This includes RF losses and losses during handovers.

Definition

TCH call drop rate (excluding handover) equals to the number of TCH call drop divided bythe number of TCH seizure (including handover).

Counter Formula

Type

Percentage

Basis

Cell

2-23

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2.3.3 Number of TCH Drops

Description

This statistic provides the number of call drops due to different causes that occur after theTCH assignment is complete. It counts clear requests sent from radio side BSC to MSC.

Definition

The number of TCH call drop equals to the number of call drops caused by radio link failure,LAPD disconnection, and handover failure on TCH/F channel and TCH/H channel.

Counter Formula

Type

Counter

Basis

Cell

2.3.4 Traffic Call Drop Rate

Description

This statistic provides the average interval between two call drops.

Definition

Traffic call drop rate equals to the ratio between call traffic and call drops number within acount cycle.

Counter Formula

Type

Minute

Basis

Cell

2-24

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2.3.5 TCH Drop rate Due To Transcoder Failure

Description

This statistic provides the percentage of calls that are dropped due to transcoder problems

Definition

Number of TCH Drops due to Transcoder Failure divided by Total Calls Assigned in thatcell

Counter Formula

Type

Percentage

Basis

Cell

2.4 Traffic

2.4.1 SDCCH Traffic

Description

This statistic provides the traffic generated due to all SDCCH seizure within a count cycle.It counts the interval between SDCCH allocation and SDCCH release.

Definition

SDCCH traffic equals to SDCCH busy time divided by 3600.

Counter Formula

Type

Erl

2-25

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ZXUR 9000 GSM KPI Reference

Basis

Cell

2.4.2 Average TCH Traffic Per Channel

Description

This statistic provides the traffic after TCH seizure. It counts the interval from assignmentcomplete to corresponding clear command on each TCH, and calculates sum for it.

Definition

TCH traffic equals to TCH (including TCH/F and TCH/H) busy time divided by 3600.

Counter Formula

Type

Erl

Basis

Cell

2.4.3 TCH Traffic

Description

This statistic provides the traffic after TCH seizure. It counts the interval from assignmentcomplete to corresponding clear command on each TCH, and calculates sum for it.

Definition

TCH traffic equals to TCH (including TCH/F and TCH/H) busy time divided by 3600.

Counter Formula

Type

Erl

2-26

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Basis

Cell

2.4.4 TCH/F Traffic

Description

This statistic provides the traffic after TCH/F seizure.

Definition

TCH/F traffic equals to TCH/F busy time divided by 3600.

Counter Formula

Type

Erl

Basis

Cell

2.4.5 TCH/H Traffic

Description

This statistic provides the traffic after TCH/H seizure.

Definition

TCH/H traffic equals to TCH/F busy time divided by 3600.

Counter Formula

Type

Erl

Basis

Cell

2-27

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ZXUR 9000 GSM KPI Reference

2.5 Mobility

2.5.1 Handover Success Rate

Description

This statistic provides the percentage of handovers that were attempted from the sourcecell (the cell for which This statistic is presented), that successfully reached the targetcell, and returned to the source cell successfully. A handover attempt is counted when ahandover command is sent to the MS. This key statistic includes inter-BSC Handovers.

Congestion on the target cell does not result in the BSS sending a handover command tothe mobile. Therefore this measurement is not impacted by target cell congestion.

Definition

Handover success rate equals to the number of handover success divided by the numberof handover requests.

Counter Formula

Type

Percentage

Basis

Cell

2.5.2 Dual-band Handover Success Rate

Description

This statistic provides dual-band handover success rate.

Definition

Dual-band handover success rate equals to the number of dual-band handover successdivided by the number of dual-band handover requests.

2-28

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Counter Formula

Type

Percentage

Basis

Cell

2.5.3 Number of Handover Requests

Description

This statistic provides the number of all handover requests generated in a cell within acount cycle.

Definition

The number of handover request equals to the sum of incoming and outgoing intra-cell,intra-BSC, and inter-BSC executions.

Counter Formula

Type

Counter

Basis

Cell

2.5.4 Number of Handover Success

Description

This statistic provides the number of handover success in a cell within a count cycle.

2-29

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Definition

The number of handover success equals to the sum of incoming and outgoing intra-cell,intra-BSC, and inter-BSC handover success.

Counter Formula

Type

Counter

Basis

Cell

2.5.5 Number of Dual-band Handover Requests

Description

This statistic provides the number of dual-band handover attempts (handover between900M and 1800M).

Definition

The number of dual-band handover requests equals to the sum of dual-band incomingexecutions from same layer, upper layer, lower layer, and undefined layer.

Counter Formula

Type

Counter

Basis

Cell

2.5.6 Number of Dual-band Handover Success

Description

This statistic provides the number of dual-band handover success (handover between 900M and 1800 M).

2-30

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Definition

The number of dual-band handover success equals to the sum of dual-band incominghandover success from same layer, upper layer, lower layer, and undefined layer.

Counter Formula

Type

Counter

Basis

Cell

2.5.7 Incoming Handover Success Rate

Description

This statistic provides the percentage of incoming intra-cell, intra-BSC and inter-BSChandover commands that are sent over the air interface, these handover commands helpthe MS to successfully access the target channel.

Definition

Incoming success rate equals to the number of intra-cell, intra-BSC, and inter-BSCincoming success divided by the number of intra-cell, intra-BSC, and inter-BSC incomingrequests.

Counter Formula

Type

Percentage

Basis

Cell

2-31

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2.5.8 Outgoing Handover Success Rate

Description

This statistic provides the percentage of outgoing intra-cell, intra-BSC and inter-BSChandover commands that are sent over the air interface, these handover commands helpthe MS to access the target channel.

Definition

Outgoing success rate equals to the number of intra-cell, intra-BSC, and inter-BSCoutgoing success divided by the number of intra-cell, intra-BSC, and inter-BSC outgoingrequests.

Counter Formula

Type

Percentage

Basis

Cell

2.5.9 Handover Attempt Rate

Description

This statistic provides the handover attempt rate.

Definition

Handover attempt rate equals to the number of outgoing execution divided by the numberof TCH attempt (including handover).

Counter Formula

Type

Percentage

2-32

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Basis

Cell

2.5.10 Number of Internal Handover Success

Description

This statistic provides the number of successful intra-BSC and intra-cell handovers.

Definition

The number of internal handover success equals to the number of intra-cell handoversuccess plus the number of inter-cell handover success, controlled by BSC.

Counter Formula

Type

Counter

Basis

Cell

2.5.11 Number of Intra-cell Handover Failure

Description

This statistic provides the number of intra-cell handover failure among channels on a BTSduring calling. It counts handover failure, where source cell is same as target cell.

Definition

The number of intra-cell handover failure equals to the number of intra-cell handoverexecutions minus the number of intra-cell handover success.

Counter Formula

Type

Counter

2-33

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ZXUR 9000 GSM KPI Reference

Basis

Cell

2.5.12 Intra-cell Handover Success Rate

Description

This statistic provides the percentage of intra-cell assignment commands that are sent overthe air interface, these assignment commands help the MS to access the target channel.

Definition

Intra-cell handover success rate equals to the number of intra-cell handover successdivided by the number of intra-cell handover executions.

Counter Formula

Type

Percentage

Basis

Cell

2.5.13 Intra-BSC Incoming Handover Success Rate

Description

This statistic provides the percentage of incoming intra-BSC handover commands that aresent over the air interface, these commands help MS to access the target channel.

Definition

Intra-BSC incoming success rate equals to the number of intra-BSC incoming successdivided by the number of intra-BSC incoming executions.

Counter Formula

Type

Percentage

2-34

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Basis

Cell

2.5.14 Intra-BSC Outgoing Handover Success Rate

Description

This statistic provides the percentage of outgoing intra-BSC handover commands that aresent over the air interface, these commands help the MS to access the target channel.

Definition

Intra-BSC outgoing success rate equals to the number of intra-BSC outgoing successdivided by the number of intra-BSC outgoing executions.

Counter Formula

Type

Percentage

Basis

Cell

2.5.15 Inter-BSC Incoming Handover Success Rate

Description

This statistic provides the percentage of incoming inter-BSC handover commands that aresent over the air interface, these commands help the MS to access the target channel.

Definition

Inter-BSC incoming success rate equals to the number of inter-BSC incoming successdivided by the number of inter-BSC incoming executions.

Counter Formula

Type

Percentage

2-35

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ZXUR 9000 GSM KPI Reference

Basis

Cell

2.5.16 Inter-BSC Outgoing Handover Success Rate

Description

This statistic provides the percentage of outgoing inter-BSC handover commands that aresent over the air interface, these command help the MS to access the target channel.

Definition

Successful outgoing BSC controlled handovers are divided by total outgoing MSCcontrolled ho attempts.

Counter Formula

Type

Percentage

Basis

Cell

2.5.17 HO Downlink Quality Share

Description

This statistic provides a percentage of number of handover attempts due to DL quality outof total handover attempts.

Definition

Number of outgoing handover attempts where the HO cause is DL quality are divided bytotal outgoing HO attempts

2-36

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Counter Formula

Type

Percentage

Basis

Cell

2.5.18 HO Uplink Quality Share

Description

This statistic provides a percentage of number of handover attempts due to DL quality outof total handover attempts.

Definition

Number of outgoing handover attempts where the HO cause is UL quality are divided bytotal outgoing HO attempts

Counter Formula

Type

Percentage

2-37

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Basis

Cell

2.5.19 HO Downlink Level Share

Description

This statistic provides a percentage of number of handover attempts out of total handoverattempts due to DL level.

Definition

Number of outgoing handover attempts where the HO cause is DL level are divided bytotal outgoing HO attempts.

Counter Formula

Type

Percentage

Basis

Cell

2.5.20 HO Uplink Level Share

Description

This statistic provides a percentage of number of handover attempts out of total handoverattempts due to UL Level

Definition

Number of outgoing handover attempts where the HO cause is UL level are divided bytotal outgoing HO attempts

2-38

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Counter Formula

Type

Percentage

Basis

Cell

2.5.21 HO Power Budget Share

Description

This statistic provides a percentage of number of handover attempts out of total handoverattempts due to power budget

Definition

Number of outgoing handover attempts where the HO cause is power budget are dividedby total outgoing HO attempts

Counter Formula

Type

Percentage

2-39

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ZXUR 9000 GSM KPI Reference

Basis

Cell

2.5.22 SDCCH Location Update Share

Description

This statistic provides the percentage of SDCCH seizure request for location update amongthe total SDCCH seizure requests

Definition

SDCCH seizure request for location update are divided by total SDCCH seizure requests

Counter Formula

Type

Percentage

Basis

Cell

2.5.23 SDCCH SMS share

Description

This statistic provides the percentage of SDCCH seizure request For SMS among the totalSDCCH seizure requests.

Definition

SDCCH seizure request for SMS are divided by total SDCCH seizure requests

Counter Formula

Type

Percentage

2-40

SJ-20120313111345-016|2012-04-28(R1.0) ZTE Proprietary and Confidential

Chapter 2 Introduction of KPI in CS Domain

Basis

Cell

2.5.24 SDCCH Supplementary Services Share

Description

This statistic provides the percentage of SDCCH Seizure Request For SupplementaryServices among the total SDCCH seizure requests.

Definition

SDCCH seizure request for supplementary services are divided by total SDCCH seizurerequests

Counter Formula

Type

Percentage

Basis

Cell

2.6 Measurement Result

2.6.1 DL Quality 0~5 Share

Description

This statistic provides a percentage of DL measurements which are in the acceptablequality range (RXQual0 to RXQual5) among total measurements.

Definition

Number of DL measurements within quality band 0 t o 5 is divided by Total DLMeasurements

2-41

SJ-20120313111345-016|2012-04-28(R1.0) ZTE Proprietary and Confidential

ZXUR 9000 GSM KPI Reference

Counter Formula

Type

Percentage

Basis

Cell

2.6.2 UL Quality 0~5 Share

Description

This statistic provides a percentage of UL measurements which are in the acceptablequality ranges (RXQual0 to RXQual5) among the total measurements.

Definition

Number of UL measurements within quality band 0 to 5 is divided by Total ULMeasurements

Counter Formula

Type

Percentage

Basis

Cell

2.6.3 Timing Advance 0~2 Share

Description

This statistic provides the distribution of traffic in 0~1.65 Km range.

2-42

SJ-20120313111345-016|2012-04-28(R1.0) ZTE Proprietary and Confidential

Chapter 2 Introduction of KPI in CS Domain

Definition

Number of frequency reports in 0~1.65 Km range are divided by total frequency reports

Counter Formula

Type

Percentage

Basis

Cell

2.6.4 Timing Advance 2~6 Share

Description

This statistic provides the distribution of traffic in 1.65Km~3.85Km range.

Definition

Number of frequency reports in 1.65 Km~3.85 Km range are divided by total frequencyreports

Counter Formula

2-43

SJ-20120313111345-016|2012-04-28(R1.0) ZTE Proprietary and Confidential

ZXUR 9000 GSM KPI Reference

Type

Percentage

Basis

Cell

2.6.5 Timing Advance 6~10 Share

Description

This statistic provides the distribution of traffic in 3.85 Km~6.05 Km range.

Definition

Number of frequency reports in 3.85 Km~6.05 Km range are divided by total frequencyreports

Counter Formula

Type

Percentage

Basis

Cell

2.6.6 Timing Advance 10~14 share

Description

This statistic provides the distribution of traffic in 6.05 Km~8.25 Km range.

2-44

SJ-20120313111345-016|2012-04-28(R1.0) ZTE Proprietary and Confidential

Chapter 2 Introduction of KPI in CS Domain

Definition

Number of frequency reports in 6.05 Km~8.25 Km range are divided by total frequencyreports

Counter Formula

Type

Percentage

Basis

Cell

2.6.7 Timing Advance 14~16 share

Description

This statistic provides the distribution of traffic in 8.25 Km~9.35 Km range.

Definition

Number of frequency reports in 8.25 Km~9.35 Km range are divided by total frequencyreports

2-45

SJ-20120313111345-016|2012-04-28(R1.0) ZTE Proprietary and Confidential

ZXUR 9000 GSM KPI Reference

Counter Formula

Type

Percentage

Basis

Cell

2.6.8 Timing Advance 16~20 share

Description

This statistic provides the distribution of traffic in 9.35 Km~11.55 Km range.

Definition

Number of frequency reports in 9.35 Km~11.55 Km range are divided by total frequencyreports

Counter Formula

Type

Percentage

2-46

SJ-20120313111345-016|2012-04-28(R1.0) ZTE Proprietary and Confidential

Chapter 2 Introduction of KPI in CS Domain

Basis

Cell

2.6.9 Timing Advance 20~22 share

Description

This statistic provides the distribution of traffic in 11.55 Km~12.65 Km range.

Definition

Number of frequency reports in 11.55 Km~12.65 Km range are divided by total frequencyreports.

Counter Formula

Type

Percentage

Basis

Cell

2.6.10 Timing Advance 22~26 share

Description

This statistic provides the distribution of traffic in 12.65 Km~14.85 Km range.

Definition

Number of frequency reports in 12.65 Km~14.85 Km range are divided by total frequencyreports

2-47

SJ-20120313111345-016|2012-04-28(R1.0) ZTE Proprietary and Confidential

ZXUR 9000 GSM KPI Reference

Counter Formula

Type

Percentage

Basis

Cell

2.6.11 Timing Advance 26~30 share

Description

This statistic provides the distribution of traffic in 12.65 Km~14.85 Km range.

Definition

Number of frequency reports in 12.65 Km~14.85 Km range are divided by total frequencyreports

Counter Formula

Type

Percentage

2-48

SJ-20120313111345-016|2012-04-28(R1.0) ZTE Proprietary and Confidential

Chapter 2 Introduction of KPI in CS Domain

Basis

Cell

2.6.12 Timing Advance 30~42 share

Description

This statistic provides the distribution of traffic in 17.05 Km~23.65 Km range.

Definition

Number of frequency reports in 17.05 Km~23.65 Km range are divided by total frequencyreports

Counter Formula

Type

Percentage

Basis

Cell

2.6.13 Timing Advance 42~63 share

Description

This statistic provides the distribution of traffic in 23.65 Km~35.2 Km range.

Definition

Number of frequency reports in 23.65 Km~35.2 Km range are divided by total frequencyreports

2-49

SJ-20120313111345-016|2012-04-28(R1.0) ZTE Proprietary and Confidential

ZXUR 9000 GSM KPI Reference

Counter Formula

Type

Percentage

Basis

Cell

2.6.14 Number of Average Idle TCH In IB1

Description

This statistic provides the average number of idle TCH with interference band 1 (

Chapter 2 Introduction of KPI in CS Domain

2.6.15 Number of Average Idle TCH In IB2

Description

This statistic provides the average quantity of idle TCH with interference band 2 (>-108dBm/-105dBm/

ZXUR 9000 GSM KPI Reference

2.6.17 Number of Average Idle TCH In IB4

Description

This statistic provides the average quantity of idle TCH with interference band 4 (>-100dBm/-95dBm).

Definition

The number of average idle TCH with interference band 5 equals to the number sum ofidle TCH/F and TCH/H with interference band 5 in carrier.

Counter Formula

Type

Counter

Basis

Cell

2-52

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Chapter 3Introduction of KPI in PSDomainThis chapter introduces description, definition, formula, and unit for several kinds of KPIin PS domain.

Table of Contents

Payload......................................................................................................................3-1Throughput.................................................................................................................3-4LLC ............................................................................................................................3-6TBF............................................................................................................................3-8RLC..........................................................................................................................3-19

3.1 Payload

3.1.1 UL GPRS Payload (Transmitted & Retransmitted)

Description

UL GPRS Payload

Definition

UL GPRS Payload can be calculated by summing up all the UL blocks(transmitted as wellas retransmitted) of each coding scheme and multiplying by the user data in a block foreach coding scheme .The total UL GPRS Payload is then calculated by summing up theUL Payload for all GPRS coding schemes.

Counter Formula

Type

Byte

3-1

SJ-20120313111345-016|2012-04-28(R1.0) ZTE Proprietary and Confidential

ZXUR 9000 GSM KPI Reference

Basis

Cell

3.1.2 DL GPRS Payload (Transmitted & Retransmitted)

Description

DL GPRS Payload

Definition

DL GPRS Payload can be calculated by summing up all the DL blocks (transmitted as wellas retransmitted) of each coding scheme and multiplying by the user data in a block foreach coding scheme .The total DL GPRS Payload is then calculated by summing up theDL Payload for all GPRS coding schemes.

Counter Formula

Type

Byte

Basis

Cell

3.1.3 UL EDGE Payload (Transmitted & Retransmitted)

Description

UL EDGE Payload

Definition

UL EDGE Payload can be calculated by summing up all the UL blocks (transmitted aswell as retransmitted) of each coding scheme (MCS) and multiplying by the user data in ablock for each Coding Scheme (MCS) .The total UL EDGE Payload is then calculated bysumming up the UL Payload for all EDGE coding schemes(MCS).

3-2

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Chapter 3 Introduction of KPI in PS Domain

Counter Formula

Type

Byte

Basis

Cell

3.1.4 DL EDGE Payload (Transmitted & Retransmitted)

Description

DL EDGE Payload

Definition

DL EDGE Payload can be calculated by summing up all the DL blocks (transmitted aswell as retransmitted) of each coding scheme (MCS) and multiplying by the user data in ablock for each Coding Scheme(MCS) .The total DL EDGE Payload is then calculated bysumming up the DL Payload for all EDGE coding schemes (MCS).

3-3

SJ-20120313111345-016|2012-04-28(R1.0) ZTE Proprietary and Confidential

ZXUR 9000 GSM KPI Reference

Counter Formula

Type

Byte

Basis

Cell

3.2 Throughput

3.2.1 UL GPRS Throughput

Description

UL GPRS Throughput

Definition

The user UL GPRS data transmitted on air interface divided by the time taken for datatransmission

Counter Formula

Type

Kbps

Basis

Cell

3-4

SJ-20120313111345-016|2012-04-28(R1.0) ZTE Proprietary and Confidential

Chapter 3 Introduction of KPI in PS Domain

3.2.2 DL GPRS Throughput

Description

DL GPRS Throughput

Definition

The user DL GPRS data transmitted on air interface divided by the time taken for datatransmission.

Counter Formula

Type

Kbps

Basis

Cell

3.2.3 UL EDGE Throughput

Description

UL EDGE Throughput

Definition

The user UL EDGE data transmitted on air interface divided by the time taken for datatransmission.

Counter Formula

Type

Kbps

Basis

Cell

3-5

SJ-20120313111345-016|2012-04-28(R1.0) ZTE Proprietary and Confidential

ZXUR 9000 GSM KPI Reference

3.2.4 DL EDGE Throughput

Description

DL EDGE Throughput

Definition

The user DL EDGE data transmitted on air interface divided by the time taken for datatransmission.

Counter Formula

Type

Kbps

Basis

Cell

3.3 LLC

3.3.1 DL LLC Signaling Frame Discard Rate

Description

This statistic provides the percentage of the discarded downlink LLC signaling frame.

Definition

DL LLC signaling frame discard rate equals to the number of DL signaling LLC framediscard due to full buffer, exhausted lifecycle, and other exceptions divided by the numberof DL signaling LLC frame.

Counter Formula

Type

Percentage

3-6

SJ-20120313111345-016|2012-04-28(R1.0) ZTE Proprietary and Confidential

Chapter 3 Introduction of KPI in PS Domain

Basis

Cell

3.3.2 DL LLC GPRS Data Frame Discard Rate

Description

This statistic provides the percentage of the discarded DL LLC GPRS data frame.

Definition

DL GPRS data frame discard rate equals to the number of DL GPRS LLC frame discarddue to full buffer, exhausted lifecycle, and other exceptions divided by the number of DLGPRS LLC frame transmitted.

Counter Formula

Type

Percentage

Basis

Cell

3.3.3 DL LLC EDGE Data Frame Discard Rate

Description

This statistic provides the percentage of the discarded DL LLC edge data frame.

Definition

DL EDGE data frame discard rate equals to the number of DL EDGE LLC frame discarddue to full buffer, exhausted lifecycle, and other exceptions divided by the number of DLEDGE LLC frame transmitted.

Counter Formula

3-7

SJ-20120313111345-016|2012-04-28(R1.0) ZTE Proprietary and Confidential

ZXUR 9000 GSM KPI Reference

Type

Percentage

Basis

Cell

3.4 TBF

3.4.1 UL TBF Establishment Success Rate

Description

This statistic provides UL GPRS signaling TBF, UL EDGE signaling TBF, UL GPRS dataTBF, UL EDGE data TBF establishment success rate. This is the important performanceindex on data service availability to check the condition of data access success in differentcells.

Definition

UL TBF establishment success rate equals to the number of UL TBF establishmentsuccess divided by the number of UL TBF establishment requests.

Counter Formula

Type

Percentage

Basis

Cell

3.4.2 DL TBF Establishment Success Rate

Description

This statistic provides DL GPRS signaling TBF, DL EDGE signaling TBF, DL GPRS dataTBF, DL EDGE data TBF establishment success rate. this is the important performanceindex on data service availability to check the condition of data access success in differentcells.

3-8

SJ-20120313111345-016|2012-04-28(R1.0) ZTE Proprietary and Confidential

Chapter 3 Introduction of KPI in PS Domain

Definition

DL TBF establishment success rate equals to the number of DL TBF establishmentsuccess divided by the number of DL TBF establishment requests.

Counter Formula

Type

Percentage

Basis

Cell

3.4.3 UL Signaling TBF Share

Description

Based on the purpose, MS establishes two kinds of TBF: signaling TBF and data TBF.UL signaling TBF share indicates the percentage of UL signaling TBF vs. UL TBF (ULsignaling TBF and data TBF).

Definition

UL signaling TBF share equals to the number of UL signaling TBF establishment dividedby the number of UL TBF establishment.

Counter Formula

Type

Percentage

Basis

Cell

3-9

SJ-20120313111345-016|2012-04-28(R1.0) ZTE Proprietary and Confidential

ZXUR 9000 GSM KPI Reference

3.4.4 DL Signaling TBF Share

Description

Based on the purpose, MS establishes two kinds of TBF: signaling TBF and data TBF.DL signaling TBF share indicates the percentage of DL signaling TBF vs. DL TBF (DLsignaling TBF and data TBF).

Definition

DL signaling TBF share equals to the number of DL signaling TBF establishment dividedby the number of DL TBF establishment.

Counter Formula

Type

Percentage

Basis

Cell

3.4.5 UL GPRS Data TBF Share

Description

This statistic provides the percentage of the number of UL GPRS data TBF establishmentvs. the number of GPRS and EDGE UL data TBF establishment.

Definition

UL GPRS data TBF share equals to the number of UL GPRS data TBF establishmentdivided by the number of UL GPRS and EDGE data TBF establishment.

Counter Formula

Type

Percentage

3-10

SJ-20120313111345-016|2012-04-28(R1.0) ZTE Proprietary and Confidential

Chapter 3 Introduction of KPI in PS Domain

Basis

Cell

3.4.6 DL GPRS Data TBF Share

Description

This statistic provides the percentage of the number of DL GPRS data TBF establishmentvs. the number of DL GPRS and EDGE data TBF establishment.

Definition

DL GPRS data TBF share equals to the number of DL GPRS data TBF establishmentdivided by the number of DL GPRS and EDGE data TBF establishment.

Counter Formula

Type

Percentage

Basis

Cell

3.4.7 UL Signaling TBF Failure Rate

Description

This statistic provides TBF percentage released after UL signaling TBF establishmentsuccess. By this performance index, it can determine whether interference, packet loss,wrong parameter setting, or instable link failure will occur in network.

Definition

UL signaling TBF failure rate equals to the number of UL signaling TBF exceptional releasedivided by the numb