Post on 03-Mar-2016
description
ZXUR 9000 GSMBase Station Controller
KPI Reference
Version: V6.50.10
ZTE CORPORATIONNO. 55, Hi-tech Road South, ShenZhen, P.R.ChinaPostcode: 518057Tel: +86-755-26771900Fax: +86-755-26770801URL: http://ensupport.zte.com.cnE-mail: support@zte.com.cn
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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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1-2
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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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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
2-2
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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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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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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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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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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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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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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
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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
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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