yuanmen1981 2008-7-4 12:04
cdma2000 evaluation methodology
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1.1 Study Objective and Scope........................................................................................1
1.2 Simulation Description Overview..............................................................................1
2 Evaluation Methodology for the Forward Link..............................................................1
2.1 System Level Setup...................................................................................................1
2.1.1 Antenna Pattern............................................................................................1
2.1.2 System Level Assumptions............................................................................2
2.1.3 Dynamical Simulation of the Forward Link Overhead Channels.....................7
2.1.4 Reverse Link Modeling in Forward Link System Simulation...........................8
2.1.5 Signaling Errors............................................................................................8
2.1.6 Fairness Criteria............................................................................................9
2.1.6.1 A Generic Proportional Fair Scheduler..................................................11
2.1.7 C/I Predictor Model for System Simulation..................................................11
2.2 Link Level Modeling................................................................................................12
2.2.1 Channel Models...........................................................................................14
2.3 Simulation Flow and Output Matrices.....................................................................16
2.3.1 Simulation Flow for the Center Cell Method.................................................16
2.3.2 Simulation Flow for the Iteration Method.....................................................19
2.3.3 Output Matrices..........................................................................................21
2.3.3.1 General output matrices.......................................................................22
2.3.3.2 Data Services and Related Output Matrices..........................................23
2.3.3.3 1xEV-DV Systems Only.........................................................................24
2.3.3.3.1 Voice Services and Related Output Matrices......................................24
2.3.3.3.2 Mixed Voice and Data Services..........................................................25
2.3.3.4 Mixed Rev. 0 and Rev. A Mobiles (1xEV-DO Systems Only)...................25
3 Evaluation Methodology for the Reverse Link.............................................................26
3.1 System Level Setup.................................................................................................26
3.1.1 Antenna Pattern..........................................................................................26
3.1.2 System Level Assumptions..........................................................................26
3.1.3 Call Setup Model.........................................................................................31
3.1.4 Packet Scheduler.........................................................................................32
3.1.5 Backhaul Overhead Modeling in Reverse Link System Simulations..............32 i
cdma2000 Evaluation Methodology 3GPP2 C.R1002-0 v1.0
CONTENTS
3.1.6 Simulation of Forward Link Overheads for Reverse Link System Simulation...........................................................................................................33 1
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3.1.6.1 Static Modeling Method.........................................................................33
3.1.6.2 Dynamic Modeling Method....................................................................34
3.1.6.3 Quantification of Forward Link Overhead as a Data Rate Cost (1xEV-DV Systems Only)...................................................................................35
3.1.7 Signaling Errors..........................................................................................35
3.1.8 Fairness Criteria..........................................................................................36
3.1.9 FER Criterion..............................................................................................36
3.2 Link Level Modeling................................................................................................36
3.2.1 Link Level Parameters and Assumptions.....................................................36
3.2.1.1 Frame Erasures....................................................................................36
3.2.1.2 Target FER............................................................................................38
3.2.1.3 Channel Models....................................................................................38
3.2.2 Forward Link Loading..................................................................................39
3.2.3 Reverse Link Power Control.........................................................................40
3.3 Simulation Requirements........................................................................................41
3.3.1 Simulation Flow..........................................................................................41
3.3.1.1 Soft and Softer Handoff.........................................................................41
3.3.1.2 Simulation Description.........................................................................41
3.3.2 Outputs and Performance Metrics...............................................................43
3.3.2.1 General Output Matrices......................................................................43
3.3.2.2 Data Services and Related Output Matrices..........................................44
3.3.2.3 1xEV-DV Systems Only.........................................................................45
3.3.2.3.1 Voice Services and Related Output Matrices......................................45
3.3.2.3.2 Mixed Voice and Data Services..........................................................46
3.3.2.4 Mixed Rev. 0 and Rev. A Mobiles (1xEV-DO Systems Only)...................46
3.3.2.5 Link Level Output.................................................................................47
3.4 Calibration Requirements.......................................................................................47
3.4.1 Link Level Calibration..................................................................................47
3.4.2 System Level Calibration.............................................................................47
3.4.2.1 1xEV-DV System Calibration................................................................47
3.4.2.2 1xEV-DO System Calibration................................................................48 ii
cdma2000 Evaluation Methodology 3GPP2 C.R1002-0 v1.0
CONTENTS
3.5 1xEV-DO Baseline Simulation Procedures..............................................................48 1
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3.5.1 Access Terminal Requirements and Procedures:..........................................48
3.5.2 Access Network Requirements and Procedures:...........................................49
3.5.3 Simulation Procedures................................................................................49
4 Traffic Service Models................................................................................................50
4.1 Forward Link Services.............................................................................................50
4.1.1 Service Mix (1xEV-DV Systems Only)...........................................................50
4.1.2 TCP Model...................................................................................................50
4.1.3 HTTP Model.................................................................................................56
4.1.3.1 HTTP Traffic Model Characteristics.......................................................56
4.1.3.2 HTTP Traffic Model Parameters.............................................................58
4.1.3.2.1 Packet Arrival Model for HTTP/1.0-Burst Mode.................................60
4.1.3.2.2 Packet Arrival Model for HTTP/1.1-Persistent Mode..........................62
4.1.4 FTP Model...................................................................................................65
4.1.4.1 FTP Traffic Model Characteristics..........................................................65
4.1.4.2 FTP Traffic Model Parameters................................................................65
4.1.5 WAP Model..................................................................................................67
4.1.6 Near Real Time Video Model........................................................................68
4.1.7 Voice Model (1xEV-DV Systems Only)..........................................................70
4.1.8 Delay Criteria..............................................................................................70
4.1.8.1 Performance Criteria for Near Real Time Video......................................71
4.1.8.2 Delay Criterion for WAP Users...............................................................71
4.2 Reverse Link Services.............................................................................................71
4.2.1 Service Mix (1xEV-DV Systems Only)...........................................................71
4.2.1.1 Data Model...........................................................................................71
4.2.1.2 Traffic Model.........................................................................................72
4.2.2 TCP Modeling..............................................................................................73
4.2.3 FTP Upload / Email.....................................................................................78
4.2.4 HTTP Model.................................................................................................79
4.2.4.1 HTTP Traffic Model Parameters.............................................................80
4.2.4.2 Packet Arrival Model for HTTP...............................................................82
4.2.4.3 Forward Link Delay Model for HTTP Users............................................84 iii
cdma2000 Evaluation Methodology 3GPP2 C.R1002-0 v1.0
CONTENTS
4.2.5 WAP Users...................................................................................................85 1
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4.2.6 Reverse Link Delay Criteria for HTTP/WAP..................................................87
4.2.7 Mobile Network Gaming Model....................................................................88
4.2.8 Voice Model (1xEV-DV Systems Only)..........................................................89
5 References.................................................................................................................89
Appendix A: Lognormal description.................................................................................92
Appendix B: Antenna Orientation...................................................................................93
Appendix C: Definition of System Outage and Voice Capacity..........................................95
Appendix D: Formula to define various throughput and Delay Definitions.......................96
Appendix E: Link budget.................................................................................................99
Appendix F: Quasi-static Method for Link Frame Erasures Generation and Dynamically Simulated Forward Link Overhead Channels.................................................................106
Appendix G: Equalization..............................................................................................117
Appendix H: Max-Log-Map Turbo Decoder Metric..........................................................120
Appendix I: 19 Cell Wrap-Around Implementation.........................................................122
Appendix J: Link Level Simulation Parameters..............................................................126
Appendix K: Joint Technical Committee (JTC) Fader.....................................................129
Appendix L: Largest Extreme Value Distribution...........................................................133
Appendix M: Reverse Link Output Matrices...................................................................134
M.1 Output Matrix.....................................................................................................134
M.1.1 1xEV-DV Systems.............................................................................................134
M.1.2 1xEV-DO Systems............................................................................................141
M.2 Definitions...........................................................................................................146
Appendix N: Link Prediction Methodology for Uplink System Simulations......................149
N.1 Definition of Required Terms................................................................................152
N.1.1 Channel Estimation SNR, ,ipΓ........................................................................152 26
N.1.2 Non-Gaussian Penalty, NGγ............................................................................153 27
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N.1.3 Reference Curves............................................................................................153
Appendix O: Reverse Link Hybrid ARQ: Link Error Prediction Methodology Based on Convex Metric...........................................................................................................................155
O.1 Convex Metric based on Channel Capacity Formula.............................................155
O.2 Equivalent SNR Method based on Convex Metric (ECM).......................................158 iv
cdma2000 Evaluation Methodology 3GPP2 C.R1002-0 v1.0
CONTENTS
O.2.1 Overview of the Procedure..............................................................................158 1
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O.2.2 Detailed Procedure.........................................................................................159
O.2.3 Combining Procedure for H-ARQ....................................................................161
Appendix P: Pilot SINR Estimation For Power-Control Command Update in Link-Level Simulations...................................................................................................................162
Appendix Q: 1xEV-DV Reverse Link Simulation and Scheduler Procedures...................163
Q.1.1 Mobile station Requirements and Procedures....................................................163
Q.1.2 Base Station Requirements and Procedures......................................................166
Q.1.3 Scheduler Requirements and Procedures..........................................................168
Q.1.3.1 Scheduling, Rate Assignment and Transmission Timeline...........................169
Q.1.3.2 Scheduler Description and Procedures........................................................171
Q.2 Baseline specific simulation parameters...............................................................174
Appendix R: Modeling of D_RL(request) and D_FL(Assign).............................................177 v