文件名称:
LTE for 4G Mobile Broadband
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文件大小: 8mb
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上传时间: 2010-06-30
详细说明： 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 ...展开收缩
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