W-Access Problem Optimization

[xsdenied07]

Dear All,

Download and enjoy )->W-Access Problem Optimization Guide.
Password:- n/a

Contents:-------------------------------------
1 Introduction........................................................................................................................... 16
2 Evaluating Access Performance ........................................................................................... 17
2.1 Accessibility............................................................................................................................................17
2.2 System Availability..................................................................................................................................18
2.3 Access Delay...........................................................................................................................................18
3 Analyzing DT/CQT Data ...................................................................................................... 19
3.1 Data Analysis Software............................................................................................................................19
3.2 Definition of Access Failure......................................................................................................................19
3.2.1 Definition of Call Failure by GENEX Assistant................................................................................19
3.2.2 Definition of Access Failure byActix Analyzer ................................................................................21
3.2.3 Definition of Access Failure by TEMS.............................................................................................21
3.3 Flow and Methods for Analyzing Access Failure Problems........................................................................22
3.3.1 Overall Flow for Analyzing Call Failure Problems ...........................................................................22
3.3.2 Analyzing Paging Problems .............................................................................................................23
3.3.3 Analyzing RRC Connection Setup Problems ....................................................................................25
3.3.4 Analyzing Authentication Problems .................................................................................................28
3.3.5 Analyzing SecurityMode Problems .................................................................................................30
3.3.6 Analyzing PDPActivation Failure Problems.....................................................................................31
3.3.7 Analyzing RAB or RB Setup Problems ............................................................................................32
3.3.8 Analyzing Access Problems in the Case of Dualband Networking.....................................................35
3.3.9 Analyzing MBMS service access problems ......................................................................................38
3.4 Processing Access Delay ..........................................................................................................................40
3.4.1 Configuration of Discontinuous Cyclic Period Duration Factor DRX................................................41
3.4.2 Whether to Disable Authentication and Encryption Flow..................................................................41
3.4.3 Implementing Early or Late Assignment ..........................................................................................41
3.4.4 Whether the RRC Connection Is Set up on FACH and DCH.............................................................42
3.4.5 Impact of Direct Retry on Access Delay...........................................................................................42
4 Analyzing Traffic Statistics Data......................................................................................... 43
4.1 Tool for Analyzing Data...........................................................................................................................43
4.2 General Methods for Analyzing Traffic Statistics Data ..............................................................................43
4.2.1 Flow for Analyzing RNC-level Traffic Statistics Data.......................................................................44
4.2.2 Flow for Analyzing Cell-level Traffic Statistics Data ........................................................................45
4.3 Accessibility Indexes ...............................................................................................................................46
4.3.1 Paging Traffic Statistics Indexes ......................................................................................................46
4.3.2 Low Success Rate of RRC Setup......................................................................................................49
4.3.3 Low Success Rate of CS RAB Setup................................................................................................53
4.3.4 Lower Success Rate of PS RAB Setup .............................................................................................57
4.3.5 Low Success Rate of RB Setup ........................................................................................................62
4.3.6 Low success rate of MBMS service setup.........................................................................................64
4.4 System Availability Index.........................................................................................................................65
4.4.1 High Admission Rejection Rate .......................................................................................................65
4.4.2 High Paging Congestion Rate ..........................................................................................................65
4.4.3 High Rate of Congested Cell............................................................................................................65
5 Solving Access Problems ...................................................................................................... 66
5.1 Paging Problems......................................................................................................................................66
5.1.1 Improper Power Configuration of Paging-related Channels ..............................................................66
5.1.2 Paging Failure due to UE Location Area Update...............................................................................66
5.1.3 Paging Failure due Implicit Detach of UE ........................................................................................68
5.2 Cell Selection and Reselection Problem....................................................................................................69
5.2.1 Repeating to Send the RRC Connection Request Message due to Cell Reselection............................69
5.3 RRC Setup Problems...............................................................................................................................72
5.3.1 Improper Configuration of Parameters of Uplink Access Channel.....................................................72
5.3.2 Improper Configuration of AICH Power ..........................................................................................75
5.3.3 Improper Configuration of FACH Power..........................................................................................75
5.3.4 Multiple Times of RRC Connection Request (for Service) and No RAB Assignment Request ...........78
5.3.5 RRC Connection of HSDPA Subscribers Rejected due to Inadequate Code Resource........................81
5.4 RAB and RB Setup Problems ...................................................................................................................83
5.4.1 RAB Setup Failure due to Inadequate Resource................................................................................83
5.4.2 Handover Failure before Completion of Signaling Flow...................................................................84
5.4.3 Admission Failure due to HSDPA Total Bit Rate Threshold Exceeded by HSDPA Bit Rate of Cell ....86
5.5 Authentication Problems..........................................................................................................................87
5.6 SecurityMode Problems..........................................................................................................................88
5.7 Abnormal Equipment Problems ................................................................................................................90
5.7.1 Abnormal NodeB............................................................................................................................90
5.7.2 Abnormal UE .................................................................................................................................92
6 Summary ................................................................................................................................ 95
7 Appendix 1: Paging Process.................................................................................................. 96
7.1 Paging Origination ..................................................................................................................................96
7.1.1 Paging by CN.................................................................................................................................96
7.1.2 Paging by UTRAN ..........................................................................................................................96
7.2 Paging Flow............................................................................................................................................96
7.2.1 Paging Type 1.................................................................................................................................96
7.2.2 Paging Type 2.................................................................................................................................98
7.3 Behaviors of UE after Receiving Paging ...................................................................................................98
7.3.1 UE in Idle Mode.............................................................................................................................98
7.3.2 UE in Connected Mode....................................................................................................................99
7.4 DRX Process of UE.................................................................................................................................99
7.4.1 DRX Cyclic Length and Paging Occasion ........................................................................................99
7.4.2 Relationship of PICH and SCCPCH...............................................................................................100
7.4.3 PCH Selection ...............................................................................................................................102
7.4.4 DRX Examples of UE....................................................................................................................102
8 Appendix 2: Access Process Analysis................................................................................ 104
8.1 Cell Search............................................................................................................................................104
8.1.1 Timeslot Synchronization ..............................................................................................................105
8.1.2 Frame Synchronization and Scramble Group Identification ............................................................105
8.1.3 Identification of Cell Primary Scramble .........................................................................................105
8.2 Cell Selection and Reselection................................................................................................................105
8.2.1 Cell Selection ...............................................................................................................................105
8.2.2 Judgment Criterion (Criterion S)....................................................................................................106
8.2.3 Cell Reselection............................................................................................................................108
8.3 Random Access .....................................................................................................................................114
8.3.1 Random Access Channel................................................................................................................114
8.3.2 Random Access Process.................................................................................................................117
9 Appendix 3: Authentication Flow...................................................................................... 120
10 Appendix 4: Description of Access-related Parameters ................................................ 123
10.1 Engineering Parameters ........................................................................................................................123
10.2 Cell Parameters ...................................................................................................................................123
10.2.1 Transmit Power of FACH.............................................................................................................123
10.2.2 Transmit Power of PCH...............................................................................................................124
10.2.3 Transmit Power of PICH..............................................................................................................124
10.2.4 Cell Reselection Parameter: Measurement Hysteresis 2 (Qhyst2s) ................................................124
10.2.5 Cell Reselection Parameter: Reselection Hysteresis Time (Treselections)......................................124
10.2.6 Cell Reselection Parameter: Sintrasearch......................................................................................124
10.2.7 Cell Reselection Parameter: Qoffset2 ...........................................................................................125
10.2.8 Transmit Power of AICH .............................................................................................................125
10.2.9 PRACH-related Parameters..........................................................................................................125
11 Appendix 5: HSUPA Load Control.................................................................................. 126
11.1 Admission Decision in HSUPA Cells.....................................................................................................126
11.1.1 Number of Subscribers.................................................................................................................126
11.1.2 lub Transmission Resources and NodeB Credit Resources ............................................................126
11.1.3 Power Resources.........................................................................................................................130
11.1.4 HSUPA RAB Downlink Admission..............................................................................................130
11.1.5 LDR...........................................................................................................................................130
11.1.6 OLC...........................................................................................................................................131
11.1.7 Description of Parameters ............................................................................................................131


9300

Pls Add Reputation & Say Thanks.......:p:p:p

[honhungoc]

could you please upload to other sites?

thank u

[hotpotato]

good doc from huawei

[selgohari]

I can't download the document as such, could you please upload to another server?

[siankirene]

Dear All,

Download and enjoy )->W-Access Problem Optimization Guide.
Password:- n/a

Contents:-------------------------------------
1 Introduction........................................................................................................................... 16
2 Evaluating Access Performance ........................................................................................... 17
2.1 Accessibility............................................................................................................................................17
2.2 System Availability..................................................................................................................................18
2.3 Access Delay...........................................................................................................................................18
3 Analyzing DT/CQT Data ...................................................................................................... 19
3.1 Data Analysis Software............................................................................................................................19
3.2 Definition of Access Failure......................................................................................................................19
3.2.1 Definition of Call Failure by GENEX Assistant................................................................................19
3.2.2 Definition of Access Failure byActix Analyzer ................................................................................21
3.2.3 Definition of Access Failure by TEMS.............................................................................................21
3.3 Flow and Methods for Analyzing Access Failure Problems........................................................................22
3.3.1 Overall Flow for Analyzing Call Failure Problems ...........................................................................22
3.3.2 Analyzing Paging Problems .............................................................................................................23
3.3.3 Analyzing RRC Connection Setup Problems ....................................................................................25
3.3.4 Analyzing Authentication Problems .................................................................................................28
3.3.5 Analyzing SecurityMode Problems .................................................................................................30
3.3.6 Analyzing PDPActivation Failure Problems.....................................................................................31
3.3.7 Analyzing RAB or RB Setup Problems ............................................................................................32
3.3.8 Analyzing Access Problems in the Case of Dualband Networking.....................................................35
3.3.9 Analyzing MBMS service access problems ......................................................................................38
3.4 Processing Access Delay ..........................................................................................................................40
3.4.1 Configuration of Discontinuous Cyclic Period Duration Factor DRX................................................41
3.4.2 Whether to Disable Authentication and Encryption Flow..................................................................41
3.4.3 Implementing Early or Late Assignment ..........................................................................................41
3.4.4 Whether the RRC Connection Is Set up on FACH and DCH.............................................................42
3.4.5 Impact of Direct Retry on Access Delay...........................................................................................42
4 Analyzing Traffic Statistics Data......................................................................................... 43
4.1 Tool for Analyzing Data...........................................................................................................................43
4.2 General Methods for Analyzing Traffic Statistics Data ..............................................................................43
4.2.1 Flow for Analyzing RNC-level Traffic Statistics Data.......................................................................44
4.2.2 Flow for Analyzing Cell-level Traffic Statistics Data ........................................................................45
4.3 Accessibility Indexes ...............................................................................................................................46
4.3.1 Paging Traffic Statistics Indexes ......................................................................................................46
4.3.2 Low Success Rate of RRC Setup......................................................................................................49
4.3.3 Low Success Rate of CS RAB Setup................................................................................................53
4.3.4 Lower Success Rate of PS RAB Setup .............................................................................................57
4.3.5 Low Success Rate of RB Setup ........................................................................................................62
4.3.6 Low success rate of MBMS service setup.........................................................................................64
4.4 System Availability Index.........................................................................................................................65
4.4.1 High Admission Rejection Rate .......................................................................................................65
4.4.2 High Paging Congestion Rate ..........................................................................................................65
4.4.3 High Rate of Congested Cell............................................................................................................65
5 Solving Access Problems ...................................................................................................... 66
5.1 Paging Problems......................................................................................................................................66
5.1.1 Improper Power Configuration of Paging-related Channels ..............................................................66
5.1.2 Paging Failure due to UE Location Area Update...............................................................................66
5.1.3 Paging Failure due Implicit Detach of UE ........................................................................................68
5.2 Cell Selection and Reselection Problem....................................................................................................69
5.2.1 Repeating to Send the RRC Connection Request Message due to Cell Reselection............................69
5.3 RRC Setup Problems...............................................................................................................................72
5.3.1 Improper Configuration of Parameters of Uplink Access Channel.....................................................72
5.3.2 Improper Configuration of AICH Power ..........................................................................................75
5.3.3 Improper Configuration of FACH Power..........................................................................................75
5.3.4 Multiple Times of RRC Connection Request (for Service) and No RAB Assignment Request ...........78
5.3.5 RRC Connection of HSDPA Subscribers Rejected due to Inadequate Code Resource........................81
5.4 RAB and RB Setup Problems ...................................................................................................................83
5.4.1 RAB Setup Failure due to Inadequate Resource................................................................................83
5.4.2 Handover Failure before Completion of Signaling Flow...................................................................84
5.4.3 Admission Failure due to HSDPA Total Bit Rate Threshold Exceeded by HSDPA Bit Rate of Cell ....86
5.5 Authentication Problems..........................................................................................................................87
5.6 SecurityMode Problems..........................................................................................................................88
5.7 Abnormal Equipment Problems ................................................................................................................90
5.7.1 Abnormal NodeB............................................................................................................................90
5.7.2 Abnormal UE .................................................................................................................................92
6 Summary ................................................................................................................................ 95
7 Appendix 1: Paging Process.................................................................................................. 96
7.1 Paging Origination ..................................................................................................................................96
7.1.1 Paging by CN.................................................................................................................................96
7.1.2 Paging by UTRAN ..........................................................................................................................96
7.2 Paging Flow............................................................................................................................................96
7.2.1 Paging Type 1.................................................................................................................................96
7.2.2 Paging Type 2.................................................................................................................................98
7.3 Behaviors of UE after Receiving Paging ...................................................................................................98
7.3.1 UE in Idle Mode.............................................................................................................................98
7.3.2 UE in Connected Mode....................................................................................................................99
7.4 DRX Process of UE.................................................................................................................................99
7.4.1 DRX Cyclic Length and Paging Occasion ........................................................................................99
7.4.2 Relationship of PICH and SCCPCH...............................................................................................100
7.4.3 PCH Selection ...............................................................................................................................102
7.4.4 DRX Examples of UE....................................................................................................................102
8 Appendix 2: Access Process Analysis................................................................................ 104
8.1 Cell Search............................................................................................................................................104
8.1.1 Timeslot Synchronization ..............................................................................................................105
8.1.2 Frame Synchronization and Scramble Group Identification ............................................................105
8.1.3 Identification of Cell Primary Scramble .........................................................................................105
8.2 Cell Selection and Reselection................................................................................................................105
8.2.1 Cell Selection ...............................................................................................................................105
8.2.2 Judgment Criterion (Criterion S)....................................................................................................106
8.2.3 Cell Reselection............................................................................................................................108
8.3 Random Access .....................................................................................................................................114
8.3.1 Random Access Channel................................................................................................................114
8.3.2 Random Access Process.................................................................................................................117
9 Appendix 3: Authentication Flow...................................................................................... 120
10 Appendix 4: Description of Access-related Parameters ................................................ 123
10.1 Engineering Parameters ........................................................................................................................123
10.2 Cell Parameters ...................................................................................................................................123
10.2.1 Transmit Power of FACH.............................................................................................................123
10.2.2 Transmit Power of PCH...............................................................................................................124
10.2.3 Transmit Power of PICH..............................................................................................................124
10.2.4 Cell Reselection Parameter: Measurement Hysteresis 2 (Qhyst2s) ................................................124
10.2.5 Cell Reselection Parameter: Reselection Hysteresis Time (Treselections)......................................124
10.2.6 Cell Reselection Parameter: Sintrasearch......................................................................................124
10.2.7 Cell Reselection Parameter: Qoffset2 ...........................................................................................125
10.2.8 Transmit Power of AICH .............................................................................................................125
10.2.9 PRACH-related Parameters..........................................................................................................125
11 Appendix 5: HSUPA Load Control.................................................................................. 126
11.1 Admission Decision in HSUPA Cells.....................................................................................................126
11.1.1 Number of Subscribers.................................................................................................................126
11.1.2 lub Transmission Resources and NodeB Credit Resources ............................................................126
11.1.3 Power Resources.........................................................................................................................130
11.1.4 HSUPA RAB Downlink Admission..............................................................................................130
11.1.5 LDR...........................................................................................................................................130
11.1.6 OLC...........................................................................................................................................131
11.1.7 Description of Parameters ............................................................................................................131


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great share.....................Tyvm