Is there any web about RF design for CDMA handset ?

about rf traffic engineering

Please suggest some.

delay spread cdma rf performance

you can find abook named CDMA RF System Engineering at



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Contents
Preface xv
Acknowledgments xix
1 Introduction 1
1.1 Motivation 1
1.2 Multiple Access Using Spread Spectrum 2
1.3 Applications of DS-SS in Mobile Communication 9
2 Radio Propagation 13
2.1 Link Analysis 13
2.2 Propagation Loss 14
2.2.1 Free-Space Model 15
2.2.2 Lee Model 15
2.2.3 Hata Model 16
2.2.4 Observations 17
2.3 Shadowing 19
2.4 Multipath Rayleigh Fading 19
2.5 Multipath Delay Spread 23
vii
3 Fundamentals of Digital RF Communication 29
3.1 Introduction 29
3.2 System Components 31
3.3 Source Coding 32
3.3.1 Characteristics of Human Speech 33
3.3.2 Vocoders 34
3.4 Channel Coding 36
3.4.1 Linear Block Codes 37
3.4.2 Convolutional Codes 41
3.4.3 Interleaving 43
3.5 Multiple Access 43
3.5.1 Walsh Codes 46
3.5.2 PN Codes 51
3.6 Modulation 58
3.6.1 Binary Phase-Shift Keying (BPSK) 58
3.6.2 Quadrature Phase-Shift Keying (QPSK) 66
3.6.3 Applications in IS-95 CDMA System 72
4 Principles of Code Division Multiple Access 75
4.1 Introduction 75
4.2 Capacity 75
4.2.1 Effects of Loading 78
4.2.2 Effects of Sectorization 79
4.2.3 Effects of Voice Activity 82
4.3 Power Control 83
4.3.1 Why Power Control? 83
4.3.2 Reverse Link 85
4.3.3 Forward Link 94
4.4 Handoff 94
4.4.1 Set Maintenance 99
viii CDMA RF System Engineering
4.4.2 Handoff Process 100
4.4.3 Pilot Search 102
5 Link Structure 105
5.1 Asymmetric Links 105
5.2 Forward Link 105
5.2.1 Pilot Channel 106
5.2.2 Sync Channel 106
5.2.3 Paging Channel 109
5.2.4 Traffic Channel 114
5.2.5 Modulator 118
5.3 Reverse Link 118
5.3.1 Access Channel 119
5.3.2 Traffic Channel 122
5.4 Traffic Channel Formats 125
5.4.1 Forward Link 128
5.4.2 Reverse Link 130
6 Call Processing 133
6.1 Call Processing States 133
6.2 Initialization State 135
6.2.1 System Determination Substate 135
6.2.2 Pilot Channel Acquisition Substate 135
6.2.3 Sync Channel Acquisition Substate 135
6.2.4 Timing Change Substate 136
6.3 Idle State 136
6.3.1 Paging Channel Monitoring 136
6.3.2 Idle Handoff 137
6.3.3 Paging Channel Messages 137
6.4 Access State 139
6.4.1 Update Overhead Information Substate 139
Contents ix
6.4.2 Page Response Substate 140
6.4.3 Mobile Station Origination Attempt Substate 140
6.4.4 Registration Access Substate 140
6.4.5 Mobile Station Order/Message Response Substate 140
6.4.6 Mobile Station Message Transmission Substate 141
6.4.7 Access Procedures 141
6.5 Traffic Channel State 145
6.5.1 Traffic Channel Initialization Substate 145
6.5.2 Waiting for Order Substate 146
6.5.3 Waiting for Mobile Station Answer Substate 146
6.5.4 Conversation Substate 147
6.5.5 Release Substate 147
7 CDMA Design Engineering 149
7.1 Introduction 149
7.2 Forward Link Analysis 149
7.2.1 Pilot Channel 149
7.2.2 Traffic Channel 156
7.3 Reverse Link 158
7.3.1 Traffic Channel 159
7.3.2 Reverse-Link Rise 163
7.3.3 Frequency Reuse Factor 164
7.4 PN Offset Planning 165
7.4.1 Short PN Sequences 165
7.4.2 Co-PN Offset 168
7.4.3 Adjacent PN Offset 171
7.5 9.6-Kbps and 14.4-Kbps Systems 174
7.5.1 Voice Quality 174
7.5.2 Power Control—Forward Link 175
7.5.3 Coverage 176
7.5.4 Capacity 179
x CDMA RF System Engineering
8 CDMA Performance Engineering 181
8.1 Introduction 181
8.2 Channel Supervision 181
8.2.1 Forward Link 181
8.2.2 Reverse Link 182
8.3 Power-Control Parameters 182
8.4 Search-Window Sizes 184
8.4.1 SRCH_WIN_A 184
8.4.2 SRCH_WIN_N and SRCH_WIN_R 187
8.5 Field Optimization 189
8.5.1 Pilot Strength 190
8.5.2 FER 190
8.5.3 Forward Link Coverage 190
8.5.4 Forward-Link Interference 191
8.5.5 Reverse-Link Coverage 192
8.5.6 Reverse-Link Interference 192
8.5.7 Some Concluding Remarks 193
9 System Noise Management 195
9.1 Introduction 195
9.2 Types of Interference 196
9.2.1 Forward Link 196
9.2.2 Reverse Link 197
9.3 Thermal Noise 198
9.4 Low-Noise Amplifier 199
9.4.1 Baseline System Without LNAs 200
9.4.2 System With LNA 202
9.4.3 Signal-to-Noise Ratio Improvement 205
9.4.4 Capacity Improvement 208
9.5 Intermodulation 208
Contents xi
9.5.1 Intermodulation Theory 208
9.5.2 CDMA Scenario 213
9.6 Interference Due to Other Mobiles 215
10 CDMA Traffic Engineering 217
10.1 Introduction 217
10.2 Fundamental Concepts 218
10.2.1 Traffic Intensity 218
10.2.2 Loads 220
10.3 Grade of Service 220
10.3.1 Erlang-B Model 221
10.3.2 Erlang-C Model 223
10.4 CDMA Applications 225
10.4.1 Soft Blocking 225
10.4.2 Hard Blocking 231
11 Management Information Systems for Personal
Communication Networks 235
11.1 Introduction 235
11.2 Management Information Systems 236
11.2.1 Information System and Control 236
11.2.2 Classes of Decisions 238
11.3 Network Management 240
11.3.1 Fault Management 240
11.3.2 Performance Management 242
11.3.3 Configuration Management 243
11.3.4 Planning 244
11.3.5 Call Accounting 245
11.4 Concluding Remarks 246
12 RF Regulatory Considerations 249
12.1 Motivation 249
xii CDMA RF System Engineering
12.2 SAB Determination 250
12.2.1 Review of AMPS SAB Calculation 250
12.2.2 CDMA SAB Determination With
Multiple Sectors 253
12.2.3 CDMA SAB Determination With Single Sector 257
12.2.4 CDMA SAB Determination With Power
Spectral Density 260
12.3 RF Exposure Rules 262
12.3.1 Maximum MPE Limits 263
12.3.2 Application of MPE Limits 264
12.3.3 Evaluation of MPE Power Densities 267
12.3.4 RF Mitigation Measures 269
12.4 Remarks 269
About the Author 271
Index 273