Radio Access Network Dimensioning for 3G UMTS (eBook)

Xi Li (Autor)

eBook Download: PDF

2011 | 2011
XXVII, 323 Seiten
Vieweg & Teubner (Verlag)
978-3-8348-8111-3 (ISBN)

Infos

Xi Li presents innovative analytical models and algorithms for the dimensioning of the 3G UMTS Radio Access Network (RAN). The proposed analytical models allow efficient and accurate dimensioning for different evolutions of UMTS radio access technologies.

Dr. Xi Li completed her doctoral thesis at the Communication Networks Group of TZI (Center for Communication and Information Technology), University of Bremen. She is a senior researcher at the Communication Networks Group, working in the field of mobile network dimensioning and optimization.

Inhalt

Preface 6
Abstract 7
Contents 9
List of Figures 14
List of Tables 19
List of Abbreviations 20
1 Introduction 25
1.1 Motivation 25
1.2 Scope of UMTS Network Dimensioning 26
1.3 Important Challenges for UMTS Network Dimensioning 28
1.4 Contributions of this Thesis 31
1.5 Thesis Overview 35
2 UMTS Evolution 38
2.1 Background of UMTS 38
2.2 UMTS Network Architecture 39
2.3 Evolution of UMTS 41
2.3.1 UMTS Release 99 42
2.3.2 High Speed Downlink Packet Access (HSDPA) 43
2.3.3 High Speed Uplink Packet Access (HSUPA) 44
2.3.4 Introduction of “All-IP” UMTS Networks 45
2.3.4.1 IP-Based UTRAN 46
2.3.4.2 Pseudo-Wire Emulation (PWE) Technology 48
2.3.5 LTE and SAE 49
3 UMTS Terrestrial Radio Access Network (UTRAN) 52
3.1 UTRAN Architecture and Interfaces 52
3.2 Generic Protocol Model for UTRAN Interfaces 54
3.3 UMTS Release 99 55
3.3.1 UTRAN Protocol Stack 56
3.3.2 Channels in the UTRAN 59
3.3.3 Iub Interface 61
3.3.3.1 Protocol Stack for the Iub User Plane 61
3.3.3.2 ATM 63
3.3.3.3 AAL2 Protocol 64
3.3.3.4 Transport Requirements on the Iub Interface 66
3.3.4 Resource Management 67
3.3.4.1 Radio Access Bearer (RAB) 67
3.3.4.2 Radio Resource Management (RRM) 69
3.3.4.3 Transport Resource Management (TRM) 72
3.4 IP-Based UTRAN 74
3.4.1 IP-Based UTRAN User Plane Protocol Architecture 74
3.4.2 QoS Support in the IP-Based UTRAN 75
3.4.2.1 Introduction of the DiffServ QoS Scheme 75
3.4.2.2 Mapping of UMTS QoS to DiffServ PHBs 79
3.4.2.3 DiffServ-Based QoS Architecture in IP-Based UTRAN 79
4 Framework of UMTS Network Dimensioning 81
4.1 Objectives of UMTS Network Dimensioning 81
4.1.1 Network Costs 81
4.1.2 Quality of Service 81
4.1.2.1 User-Relevant QoS 82
4.1.2.2 Network-Relevant QoS (Network Performance) 83
4.2 Important Issues for UMTS Network Dimensioning 83
4.2.1 Traffic Analysis 85
4.2.2 Network Topology 87
4.2.3 Traffic Control 88
4.2.4 Resource Control 89
4.2.5 Routing and Traffic Engineering 89
4.2.6 Summary 90
4.3 Framework for UMTS Network Dimensioning 90
4.4 Dimensioning Approaches 94
4.5 Conclusion 97
5 Introduction of Simulation Models 98
5.1 Requirements of Simulation Models 98
5.2 Simulation Model Framework 99
5.3 Simulation Environment 101
5.4 Simulation Model of UMTS Rel99 101
5.5 Simulation Model of IP-Based UTRAN 109
5.5.1 Exact IP-Based UTRAN Simulation Model 109
5.5.2 Simplified IP-Based UTRAN Simulation Model 110
5.5.3 Summary 111
5.6 Simulation Model of HSPA 111
5.7 Simulation Model of Combined UMTS Rel99 and HSPA 112
5.8 Traffic Models 113
5.8.1 Voice Traffic Model 113
5.8.2 Web Browsing Traffic Model 115
5.8.3 File Transfer Traffic Model 117
6 Dimensioning for Single ATM-Based Iub 119
6.1 Overview and Objectives 119
6.2 Dimensioning for Circuit-Switched Traffic 120
6.2.1 Erlang-B Formula 120
6.2.2 Multi-Dimensional Erlang-B Formula 125
6.2.3 Iub Dimensioning with the Erlang-B Formula 129
6.2.4 Validation of Erlang Model 131
6.2.5 Dimensioning Results 134
6.2.6 Summary 136
6.3 Dimensioning for Elastic Traffic 136
6.3.1 Transmission Control Protocol (TCP) 137
6.3.2 Related Work 140
6.3.3 Processor Sharing Model for Elastic Traffic 141
6.3.4 Application of M/G/R-PS Model for Dimensioning Iub Interface 142
6.3.5 Basic M/G/R-PS Model 144
6.3.6 Extended M/G/R-PS Model 147
6.3.7 Suggested Extensions on M/G/R-PS Model for Iub Dimensioning 149
6.3.7.1 Extension for case with Single RAB and not Applying CAC 150
6.3.7.2 Extension for case with Single RAB and Applying CAC 152
6.3.7.3 Extension for case with Multiple RABs and not Applying CAC 153
6.3.7.4 Extension for case with BRA and not Applying CAC 156
6.3.7.5 Extension for case of Mixing with Circuit-Switched Traffic 157
6.3.8 Validation of Extensions of Processor Sharing Models 159
6.3.8.1 Simulation Environment 159
6.3.8.2 Single RAB without Applying CAC 160
6.3.8.3 Single RAB with CAC 163
6.3.8.4 Multiple RABs without Applying CAC 165
6.3.8.5 BRA without Applying CAC 168
6.3.8.6 Elastic Traffic Mixed with Circuit-Switched Traffic 169
6.3.9 Dimensioning Procedures 170
6.3.10 Dimensioning Results 173
6.3.11 Summary 177
6.4 Dimensioning for Transport Network Performance 177
6.4.1 System Models for the Iub Interface 178
6.4.1.1 Delay Analysis on the Iub 178
6.4.1.2 System Models 180
6.4.2 UMTS Iub Traffic Characteristics 182
6.4.2.1 Squared Coefficient of Variation 182
6.4.2.2 Self-Similarity of Elastic IP Traffic 183
6.4.3 Analytical Dimensioning Models with MMPP 184
6.4.3.1 Markov Modulated Poisson Process (MMPP) 185
6.4.3.2 MMPP(2)/D/1 186
6.4.3.3 MMPP(2)/D/1 – Non-Preemptive Priority 189
6.4.3.4 Iub Dimensioning with MMPP 191
6.4.3.5 Validations 193
6.4.4 Analytical Dimensioning Models with BMAP 197
6.4.4.1 Batch Markovian Arrival Process (BMAP) 197
6.4.4.2 BMAP/D/1 202
6.5 Dimensioning for HSPA 203
7 Dimensioning for Single IP-Based Iub 206
7.1 Overview and Objectives 206
7.2 Dimensioning for Circuit-Switched Traffic 207
7.3 Dimensioning for Elastic Traffic 207
7.3.1 Analytical Models for the IP-Based Iub Dimensioning 208
7.3.2 Validation of Analytical Dimensioning Models 212
7.3.3 Dimensioning Procedure 215
7.3.4 Dimensioning Results 216
7.4 Comparing the ATM and IP-Based Iub 217
7.5 Summary 221
8 Dimensioning for Multi-Iub RAN Scenario 222
8.1 Overview and Objectives 222
8.1.1 Dimensioning of Individual Links 223
8.1.2 Overbooking of the Iub Backbone Link 223
8.2 Dimensioning for Circuit-Switched Traffic 225
8.2.1 Network Dimensioning Approach 225
8.2.2 Applicability of the Dimensioning Approaches 228
8.2.3 Summary 230
8.3 Dimensioning for Elastic Traffic in ATM-Based UTRAN 230
8.3.1 Estimation of End-to-End Application Performance 231
8.3.2 Dimensioning Approaches 236
8.3.3 Dimensioning Results 239
8.3.4 Summary 242
8.4 Dimensioning for Elastic Traffic in IP-Based UTRAN 242
8.4.1 Dimensioning Approaches 243
8.4.2 Dimensioning Results 246
8.4.3 Summary 251
8.5 Overbooking of the Iub Backbone Link 252
8.5.1 Overbooking of ATM-Based Iub Backbone Link 252
8.5.2 Overbooking of IP-Based Iub Backbone Link 256
8.5.3 Comparing ATM and IP-Based Multi-Iub RAN 261
8.5.4 Summary 263
9 Conclusion and Outlook 265
Appendix 269
A.1 ATM Cell Format 269
A.2 AAL2 Packet Formats 269
A.3 ATM Service Categories and QoS Parameters 271
A.4 Ethernet 273
A.5 Random Early Detection and Weighted RED 273
A.6 AMR 276
A.7 Self-Similarity 278
A.8 ATM Workstation and Server 279
A.9 Introduction for HSPA (HSUPA/HSDPA) 280
A.10 Simulation Model of HSPA 285
A.11 Multiplexing Schemes for the IP-Based UTRAN 287
A.12 Exact IP-Based UTRAN Simulation Model 289
A.13 Impact of TCP Slow Start 291
A.14 Processor Sharing among Multiple RABs 291
A.15 Dimensioning for HSPA Traffic 292
A.16 Use of Traffic Separation for Transport of HSPA and Rel99 300
A.17 Dimensioning for Mixed Traffic Cases (ATM-Based Iub) 313
A.18 Validating Dimensioning Approaches for Multi-Iub IP RAN 314
A.19 Investigating Overbooking in the ATM-Based UTRAN 317
A.20 Statistical Evaluation: Confidence Interval 322
A.21 Statistical Evaluation: Limited Relative Error 325
A.22 Comparing ATM and IP-Based UTRAN 326
Bibliography 331

Produkt-Details

• Erscheint lt. Verlag: 18.5.2011
• Reihe/Serie: Advanced Studies Mobile Research Center Bremen
• Zusatzinfo: XXVII, 323 p. 181 illus.
• Verlagsort: Wiesbaden
• Sprache: englisch
• Themenwelt: Mathematik / Informatik ► Informatik
• Themenwelt: Technik ► Elektrotechnik / Energietechnik
• Themenwelt: Technik ► Nachrichtentechnik
• Schlagworte: HSDPA • Network dimensioning • Radio Access Networks • Resource Management • UMTS
• ISBN-10: 3-8348-8111-2 / 3834881112
• ISBN-13: 978-3-8348-8111-3 / 9783834881113