English
资源说明：1 Introduction 1
1.1 Beyond 3G systems 2
1.2 Long-Term Evolution (LTE) 3
1.3 Evolution to 4G 4
References 4
2 Network architecture and protocols 5
2.1 Network architecture 5
2.2 QoS and bearer service architecture 8
2.3 Layer 2 structure 9
2.4 Protocol states and states transitions 13
2.5 Seamless mobility support 14
2.6 Multicast broadcast system architecture 15
2.7 Summary 19
References 19
3 Downlink access 20
3.1 OFDM 20
3.2 Downlink capacity comparison 28
3.3 Effect of frequency selectivity on OFDM performance 31
3.4 Single-carrier with FDE 36
3.5 Frequency diversity 51
3.6 OFDM/OQAM with pulse-shaping 62
3.7 Summary 67
References 68
4 Single-carrier FDMA 70
4.1 Single-carrier FDMA 71
4.2 Uplink capacity comparison 75
4.3 Capacity results 80
4.4 Hybrid uplink access 83
4.5 FFT precoding complexity 85
4.6 Summary 86
References 87
5 Reducing uplink signal peakiness 88
5.1 Measures of signal peakiness 89
5.2 PAPR of QAM modulations 91
5.3 Peakiness of SC-FDMA signal 95
5.4 Low PAPR modulations 96
5.5 Spectrum shaping 98
5.6 Coverage gain due to low signal peakiness 105
5.7 Summary 108
References 109
6 Transmit diversity 110
6.1 Transmit diversity schemes 111
6.2 Downlink transmission chain 140
6.3 Codeword to layer mapping 141
6.4 Transmit diversity precoding 142
6.5 Summary 145
References 146
7 MIMO spatial multiplexing 147
7.1 MIMO capacity 147
7.2 Codewords and layer mapping 149
7.3 Downlink MIMO transmission chain 153
7.4 MIMO precoding 156
7.5 CDD-based precoding 161
7.6 Open-loop spatial multiplexing 168
References 171
8 Channel structure and bandwidths 172
8.1 Channel bandwidths 172
8.2 UE radio access capabilities 173
8.3 Frame and slot structure 174
8.4 Frame structure type 2 177
8.5 Downlink distributed transmission 178
8.6 Uplink hopping 182
8.7 Summary 184
References 186
9 Cell search and reference signals 187
9.1 PN sequence 187
9.2 Zadoff−Chu (ZC) sequences 189
9.3 Downlink frame structure 190
9.4 Synchronization signals 191
9.5 Broadcast channel 195
9.6 Downlink reference signals 199
9.7 Uplink reference signals 209
9.8 Reference signals overhead 222
9.9 Summary 224
References 225
10 Random access 226
10.1 Random access preamble formats 226
10.2 RA sequence length and resource mapping 228
10.3 Random access configurations 231
10.4 RA preamble cyclic shifts 233
10.5 Signal peakiness of RA sequences 243
10.6 Random access MAC procedures and formats 244
10.7 Summary 248
References 250
11 Channel coding 251
11.1 LDPC codes 251
11.2 Channel coding schemes in LTE 253
11.3 Cyclic redundancy check 255
11.4 Codeblock segmentation 261
11.5 Turbo coding 264
11.6 Tail-biting convolutional code 271
11.7 Circular-buffer rate matching for turbo code 273
11.8 Circular-buffer rate matching for convolutional code 281
11.9 Codeblock concatenation 285
11.10 Channel interleaver 285
11.11 Summary 287
References 289
12 Scheduling, link adaptation and hybrid ARQ 291
12.1 Channel-sensitive scheduling 292
12.2 Frequency-selective multi-user scheduling 298
12.3 Proportional fair scheduling 301
12.4 Link adaptation 303
12.5 Hybrid ARQ 308
12.6 Hybrid ARQ in the LTE system 325
12.7 Summary 328
References 328
13 Power control 329
13.1 Uplink power control 329
13.2 Downlink power control 334
13.3 Summary 341
References 341
14 Uplink control signaling 342
14.1 Data control multiplexing 343
14.2 Control signaling contents 345
14.3 Periodic reporting 349
14.4 Aperiodic reporting 359
14.5 Summary 365
References 367
15 Downlink control signaling 368
15.1 Data control multiplexing 369
15.2 Resource element groups 370
15.3 Control format indicator channel 372
15.4 Downlink resource allocation 374
15.5 Downlink control information 378
15.6 Hybrid ARQ indicator 396
15.7 Summary 407
References 408
16 Inter-cell interference control 409
16.1 Inter-cell interference 409
16.2 Inter-cell interference mitigation 411
16.3 Cell-edge performance 412
16.4 Cell-center performance 416
16.5 Fractional frequency reuse 419
16.6 Fractional loading 421
16.7 ICI co-ordination in the LTE system 424
16.8 Summary 425
References 425
17 Single frequency network broadcast 426
17.1 Multicast broadcast system 427
17.2 Single frequency network 427
17.3 Multiplexing of MBSFN and unicast 431
17.4 MBSFN and unicast superposition 438
17.5 Summary 445
References 447
18 Spatial channel model 448
18.1 Multi-path fading 448
18.2 SCM channel scenarios 450
18.3 Path-loss models 451
18.4 SCM user parameters 453
18.5 SCM channel coefficients 463
18.6 SCM extension 464
18.7 Summary 466
References 466
19 LTE performance verification 468
19.1 Traffic models 468
19.2 System simulations scenarios and parameters 475
19.3 Link to system performance mapping 479
19.4 System performance 482
19.5 Summary 485
References 487
Index 488
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