Cellular Communications Explained: From Basics to 3G: Cellular Communications Explained From Basics to 3G.pdf

Cellular Communications Explained: From Basics to 3G  http://ifile.it/xd1q9fl/0750664355.zip
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Newnes is an imprint of Elsevier
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First edition 2006
Copyright
2006, Ian Poole. Published by Elsevier Ltd. All rights reserved
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ISBN-13: 978-0-7506-6435-5
ISBN-10: 0-7506-6435-5

Contents
Preface xi
1 Introduction to cellular telecommunications 1
Beginnings 1
Overview of the systems 9
2 Radio waves and propagation 13
Electric fields 13
Magnetic fields 14
Radio waves 15
Frequency-to-wavelength conversion 17
Polarization 19
How radio signals travel 19
Refraction, reflection and diffraction 20
Coverage and network planning 25
3 Modulation 27
Radio carrier 27
Amplitude modulation 27
Modulation index 31
Frequency modulation 32
Modulation index and deviation ratio 33
Sidebands 34
Bandwidth 35
Improvement in signal-to-noise ratio 36
Frequency shift keying 37
Phase modulation 37
Phase shift keying 38
Minimum shift keying 40
Quadrature amplitude modulation 42
Spread spectrum techniques 43
Frequency hopping 43
Direct sequence spread spectrum 44
Orthogonal frequency division multiplex 47
Bandwidth and data capacity 49
Summary 50
4 Cellular basics 51
Spectrum re-use 51
Multiple access schemes 53
Duplex operation 55
Setting up calls 56
Receiving and making a call 57
Handover and handoff 58
Channel usage 59
Infrastructure 60
Base transceiver station 61
Mobile switching centre 62
Mobile phone 62
Voice coding 65
Digital data structures 66
5 Analogue systems 67
Today 68
Basic system 68
Base station 69
Mobile switching centres 70
Mobile equipment 71
Voice messaging 71
Signalling methods 72
Control channels 74
Forward control channel 74
Reverse control channel 75
Call initiation 75
Paging and incoming call set-up 75
Handoff 76
Summary 77
6 GSM 79
System architecture 80
Equipment and subscriber identifiers 81
Air interface 82
Power levels 83
Multiple access and channel structure 84
Vocoders 88
Operation 90
General packet radio service 93
GPRS network structure 94
Layers 94
vi CONTENTS
GPRS mobiles 95
GPRS coding 95
GPRS physical channel 96
Channel allocation 97
GPRS operation 98
EDGE 100
Time slots 100
Data coding and throughput 101
Operation 102
7 North American TDMA 103
System overview 104
RF signal 104
Channels 105
Paging 109
Handoff 109
Authentication 110
PDC 111
8 cdmaOne/IS-95 113
Standards 113
Spreading codes 114
Radio signal construction 114
Channels 115
Forward link code channels 115
Reverse channels 124
Power control 128
Handoff 130
Discontinuous reception 130
Call processing 131
Vocoders 132
Advantages of CDMA 133
9 CDMA2000 135
1X and 3X 136
Radio configurations 136
CDMA2000 1X 137
Power control 139
Beam formatting 139
Channels 139
Packet data 142
Handoff 142
CONTENTS vii
CDMA2000 1xEV-DV 143
New features 143
Base station selection 146
Release D 146
Broadcast and multicast services 147
Fast call set-up 148
Mobile equipment identifier 148
CDMA2000 1xEV-DO 148
EV-DO air interface 149
Forward link 149
Reverse link 150
Mobile IP 151
10 UMTS 155
Capabilities 156
System architecture overview 156
User equipment 156
Radio network sub-system 158
Protocols 159
Air interface 159
Spreading 160
Synchronization 161
Power control 162
Frames, slots and channels 162
Logical channels 164
Transport channels 164
Physical channels 165
Packet data 167
Speech coding 168
Discontinuous reception 168
Access stratum protocol layers 168
Handover 169
Inter-system handover 170
The evolution of 3G networks 170
11 Position location 173
Cell ID 173
TDOA 174
A-GPS 174
GPS 174
Assistance from the base station 178
A-GPS 178
viii CONTENTS
12 Conformance and interoperability testing 181
Types of test 181
Test cases 182
CDMA system 184
Summary 185
Glossary 187
Index 195

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相当清楚啊，感谢楼主:11bb

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