Wireless Technician's Handbook 2nd Edition (Artech House Mobile Communications Library)

TeamLiB......Page 0
Cover......Page 1
Contents......Page 7
Foreword......Page 13
Acknowledgments......Page 15
1.2 Domains: Time and Frequency......Page 17
1.3 Power......Page 19
1.4 Understanding Propagation......Page 22
1.5 The Transmit and Receive Path......Page 25
1.6 Digital Basics......Page 27
1.7 Modulation......Page 31
1.8 Vocoding......Page 32
1.9 Shift Keying......Page 34
1.12 QPSK/O-QPSK and CDMA......Page 36
1.14 Spread Spectrum......Page 37
1.15 Conclusion......Page 38
2.2 The History of Cellular......Page 39
2.3 The ¡°Cell¡± in Cellular......Page 44
2.4 The Typical Modern Network......Page 47
2.5 The Concept of Multiple Access......Page 48
2.6 The Key to Truly Mobile Communications¡ªThe Handoff......Page 50
2.7 Sectorization......Page 52
2.8 Antennas......Page 53
2.9 Improving Performance......Page 55
2.10 Squeezing Out As Much As We Can¡ªRepeaters and Front Ends......Page 56
2.11 Systems in Use Around the Globe......Page 58
2.12 Conclusion......Page 61
3.2 The Analog Network......Page 63
3.3 Signaling on the Analog System......Page 64
3.4 Preparing Analog Signals......Page 67
3.5 Identifying the Mobiles and Base Stations......Page 69
3.7 Control and Voice Channels......Page 71
3.8 The FOCC......Page 72
3.9 The RECC......Page 76
3.10 The Voice Channels......Page 77
3.11 Call-Processing States......Page 79
3.12 Transmit Power......Page 80
3.13 The Handoff......Page 81
3.14 The Problems with AMPS......Page 83
3.15 Conclusion......Page 85
4.1 Introduction to NA-TDMA......Page 87
4.2 Nomenclature of NA-TDMA¡ªIdentifiers and Architecture......Page 88
4.3 Channels in NA-TDMA......Page 90
4.4 ¦Ð/4 DQPSK¡ªThe Modulation of NA-TDMA......Page 91
4.5 The FOCC, RECC, FVC, and RVC in IS-136......Page 93
4.6 The Digital Traffic Channel......Page 95
4.7 Messages on the DTCH......Page 98
4.8 The DCCH......Page 99
4.9 Sleep Mode......Page 101
4.10 Messages on the DCCH......Page 102
4.11 MAHO......Page 103
4.12 Authentication......Page 104
4.13 Conclusion......Page 108
5.1 Introduction......Page 109
5.2 GSM System Architecture......Page 110
5.3 Identifiers in GSM......Page 111
5.4 Modulation in GSM......Page 112
5.5 Power Levels......Page 113
5.6 GSM Channels......Page 114
5.7 Control Channels......Page 116
5.8 Vocoders and Traffic Channels......Page 118
5.9 Messaging......Page 120
5.10 Burst Types......Page 121
5.11 Frequency Hopping......Page 122
5.14 Stage 2 and Beyond......Page 123
5.15 Conclusion......Page 124
6.1 Introduction......Page 125
6.3 Packet Data Protocol Basics......Page 127
6.4 GPRS Phones and Devices......Page 128
6.5 Understanding the Layers......Page 129
6.6 GPRS Physical Channels......Page 130
6.7 GPRS Coding......Page 133
6.8 Bursts......Page 135
6.9 Channel Allocation......Page 136
6.10 Logical Channels......Page 138
6.11 Overview of GPRS Processes......Page 140
6.12 The EDGE Format......Page 141
6.13 8PSK Modulation and EDGE Coding......Page 142
6.14 EDGE and the Future......Page 143
7.3 Multiple Access in CDMA......Page 145
7.4 Capacity: The Reason for the Hype......Page 146
7.5 Understanding the ¡°Code¡± in CDMA......Page 147
7.6 The CDMA Vocoders......Page 149
7.7 The Forward Link¡ªCode Channels......Page 150
7.8 Synchronization on the Forward Link......Page 155
7.9 The Reverse Link Channels......Page 156
7.10 Power Control......Page 159
7.11 Call Processing¡ªThe Four States......Page 160
7.12 Registrations in CDMA......Page 161
7.13 Handoffs in CDMA......Page 162
7.14 The Pilot Searching Process......Page 163
7.15 Conclusion......Page 165
8.2 CDMA Evolution......Page 167
8.3 Overview of 1X-RTT and 3X-RTT......Page 168
8.4 Radio Configurations......Page 171
8.5 Spreading and Channel Coding Changes......Page 172
8.6 Air Interface Differences......Page 174
8.7 Power Control Changes......Page 176
8.8 Physical Channel Overview......Page 177
8.9 Forward Physical Channels......Page 179
8.10 Reverse Physical Channels......Page 183
8.11 Logical Channels and Layering Overview......Page 185
8.13 Forward Transmit Diversity......Page 186
8.15 Conclusion......Page 187
9.2 History of WCDMA......Page 189
9.4 TDD and FDD Modes......Page 191
9.5 Introduction to Nomenclature......Page 195
9.6 Slot and Frame Structure......Page 196
9.7 Logical and Transport Channels......Page 197
9.8 Physical Channels......Page 200
9.9 Spreading......Page 201
9.10 Synchronization......Page 204
9.11 Power Control......Page 205
9.12 Handovers in WCDMA......Page 206
9.13 Modulation......Page 208
9.15 Conclusion......Page 209
10.2 Types of Cellular and PCS Technicians......Page 211
10.3 Introduction to the Radio Transceiver......Page 213
10.4 Measuring Power......Page 216
10.5 Time and Frequency Error Measurements......Page 219
10.6 Spectrum Analysis......Page 220
10.7 Scalar Network Analysis......Page 224
10.8 Testing the Audio and Mechanical Components......Page 225
10.10 Introducing the Communications Test Set......Page 226
10.11 Drive Test Tools......Page 227
10.12 The Battery......Page 228
10.13 Conclusion......Page 229
11.2 The AMPS Receiver......Page 231
11.4 Testing the AMPS Receiver......Page 233
11.6 Testing the AMPS Transmitter......Page 237
11.7 Conclusion......Page 240
12.2 Introduction to the TDMA Transceiver......Page 241
12.4 Functional Tests......Page 244
12.5 Transmitter Tests......Page 246
12.6 Receiver Tests......Page 250
12.8 Testing Data¡ªGPRS and EDGE......Page 255
12.9 Conclusion......Page 256
13.1 Introduction......Page 257
13.3 Introduction to CDMA Tests......Page 258
13.4 Testing Power......Page 260
13.5 Code-Domain Tests (BTS Only)......Page 265
13.6 Timing, Frequency, and Modulation Testing......Page 269
13.8 Out-of-Band Tests......Page 271
13.9 Receiver Tests......Page 272
13.10 1X and Beyond......Page 273
13.11 Conclusion......Page 274
14.2 Transmission Tests......Page 275
14.4 Conclusion......Page 276
Appendix A......Page 279
Appendix B......Page 281
Glossary......Page 283
Selected Bibliography......Page 293
About the Author......Page 295
Index......Page 297