PrefaceAcknowledgmentsAbbreviations and AcronymsCHAPTER 1 Introduction 1.1 IG and 2G--Voice-Centric Technologies 1.2 3G and 4G--Mobile Broadband 1.3 5G--Beyond Mobile Broadband--Networked Society 1.4 OutlineCHAPTER 2 Spectrum Regulation and Standardization From 3G to 5G 2.1 Overview of Standardization and Regulation 2.2 ITU-R Activities From 3G to 5G 2.2.1 The Role of ITU-R 2.2.2 IMT-2000 and IMT-Advanced 2.2.3 IMT-2020 2.3 Spectrum for Mobile Systems 2.3.1 Spectrum Defined for IMT Systems by the ITU-R 2.3.2 Frequency Bands for LTE 2.3.3 New Frequency Bands 2.4 Spectrum for 5G 2.4.1 New Frequency Bands to be Studied by WRC 2.4.2 RF Exposure Above 6 GHz 2.5 3GPP Standardization 2.5.1 The 3GPP Process 2.5.2 Specifying 5G in 3GPPCHAPTER 3 LTE Radio Access: An Overview 3.1 LTE Basic Technologies 3.1.1 Transmission Scheme 3.1.2 Channel-Dependent Scheduling and Rate Adaptation 3.1.3 Inter-Cell Interference Coordination 3.1.4 Multi-Antenna Transmission 3.1.5 Spectrum Flexibility 3.1.6 Multicast and Broadcast Support 3.1.7 Positioning 3.2 LTE Evolution 3.3 Spectrum Flexibility 3.3.1 Carrier Aggregation 3.3.2 License-Assisted Access 3.4 Multi-Antenna Enhancements 3.4.1 Extended Multi-Antenna Transmission 3.4.2 Multi-Point Coordination and Transmission 3.4.3 Enhanced Control-Channel Structure 3.5 Densification, Small Cells, and Heterogeneous Deployments 3.5.1 Relaying 3.5.2 Heterogeneous Deployments 3.5.3 Small-Cell On-Off 3.5.4 Dual Connectivity 3.5.5 Dynamic TDD 3.5.6 WLAN Interworking 3.6 Device Enhancements 3.7 New Scenarios 3.7.1 Device-to-Device Communication 3.7.2 Machine-Type Communication 3.8 Device CapabilitiesCHAPTER 4 Raflio-lnterface Architecture 4.1 Overall System Architecture 4.1.1 Core Network 4.1.2 Radio-Access Network 4.2 Radio Protocol Architecture 4.2.1 Packet-Data Convergence Protocol 4.2.2 Radio-Link Control 4.2.3 Medium-Access Control 4.2.4 Physical Layer 4.3 Control-Plane Protocols 4.3.1 State MachineCHAPTER 5 Physical Transmission Resources 5.1 Overall Time-Frequency Structure 5.2 Normal Subframes and MBSFN Subframes 5.3 Antenna Ports 5.3.1 Quasi-co-Located Antenna Ports 5.4 Duplex Schemes 5.4.1 Frequency-Division Duplex 5.4.2 Time-Division Duplex 5.4.3 LTE and TD-SCDMA Coexistence 5.4.4 License-Assisted Access 5.5 Carrier Aggregation 5.6 Frequency-Domain Location of LTE CarriersCHAPTER 6 Downlink Physical-Layer ProcessingCHAPTER 7 Uplink Physical-Layer ProcessingCHAPTER 8 Retransmission ProtocolsCHAPTER 9 Scheduling and Rate AdaptationCHAPTER 10 Channel-State Information and Full-Dimension MIMOCHAPTER 11 Access ProceduresCHAPTER 12 Carrier AggregationCHAPTER 13 Multi-Point Coordination and TransmissionCHAPTER 14 Heterogeneous DeploymentsCHAPTER 15 Small-Cell Enhancements and Dynamic TDD CHAPTER 16 Dual ConnectivityCHAPTER 17 Unlicensed Spectrum and License-Assisted AccessCHAPTER 18 RelayingCHAPTER 19 Multimedia BroadcasVMulticast ServicesCHAPTER 20 LTE for Massive MTC ApplicationsCHAPTER 21 Device-to-Device ConnectivityCHAPTER 22 Spectrum and RF CharacteristicsCHAPTER 23 5G Wireless AccessCHAPTER 24 New 5G Radio-Access TechnologyCHAPTER 25 Concluding RemarksReferencesIndex