Foreword<br/>Introduction<br/>Acronyms<br/>1 5G versus 4G: What’s New?<br/> 1.1 Overview<br/> 1.2 LTE: A Success Story<br/> 1.3 Physical Layer Changes in 5G<br/> 1.4 Protocol Changes in 5G<br/> 1.5 Main Physical Layer Features of LTE over Releases<br/>2 Deployment Scenarios<br/> 2.1 LTE-NR Spectrum Sharing<br/> 2.2 Switched NR UL Carrier Aggregation Enhancements<br/> 2.3 Nonaligned Carrier Aggregation Operation<br/> 2.4 Frequency Ranges and Frequency Bands<br/>3 Architecture Options for 5G<br/> 3.1 Introduction<br/> 3.2 The 5G RAN Architecture<br/> 3.3 The 5G Core<br/> 3.4 EPC versus 5GC (What Is 5GC For?)<br/> 3.5 Main Functional Entities of the 5G Core<br/> 3.6 High-Level Features of 5G Core<br/> 3.7 Network Slicing<br/> 3.8 QoS<br/> 3.9 Interworking with Non-3GPP Access Technologies<br/> 3.10 Policy Control<br/> 3.11 5G Security<br/> 3.12 Access Control and Barring<br/> 3.13 Support for Operator and Regulatory Services<br/> 3.14 Interworking with EPC<br/> 3.15 EPC to 5GC Migration<br/>4 Evolution of 5G Architecture<br/> 4.1 Introduction<br/> 4.2 Non-Public Networks<br/> 4.3 Cellular V2X<br/> 4.4 Cellular IoT<br/> 4.5 “Big Data” Collection (Enhanced Network Automation)<br/> 4.6 Enhancements to Interworking with Non-3GPP Accesses<br/> 4.7 URLLC<br/> 4.8 Slice Authentication<br/> 4.9 Other Release 16 Features<br/>5 Numerology and Slot Structure<br/> 5.1 Numerology and Slot Structure in 4G LTE<br/> 5.2 Lessons Learned from 4G LTE and 5G Considerations<br/> 5.3 SCSs for 5G NR<br/> 5.4 Frequency Ranges, Bandwidths, and Bands for 5G NR<br/> 5.5 gNB Channel Bandwidth versus UE Channel Bandwidth<br/> 5.6 Symbol, Slot, Subframe, and Frame for 5G NR<br/> 5.7 Slot Structure for 5G NR and Forward Compatibility Considerations<br/>6 Initial Access and Mobility<br/> 6.1 Overview<br/> 6.2 Initial Access<br/> 6.3 Random Access<br/> 6.4 Paging<br/> 6.5 Mobility<br/>7 Downlink Control Operation<br/> 7.1 Downlink Control in 4G LTE<br/> 7.2 Control Region Management in 5G NR<br/> 7.3 PDCCH Structure in 5G NR<br/> 7.4 Search Space for NR PDCCH<br/> 7.5 DCI Formats for NR PDCCH<br/> 7.6 Physical Layer Block Diagram for NR PDCCH<br/> 7.7 Power Saving Considerations<br/>8 Downlink Data Operation<br/> 8.1 Channel Coding for Data<br/> 8.2 Channel Code Rate Matching<br/> 8.3 DL Soft Buffer Management<br/> 8.4 DL MCS and TBS Determination<br/> 8.5 DL Resource Allocation in the Time Domain<br/> 8.6 DL Resource Allocation in the Frequency Domain<br/> 8.7 DL Rate Matching<br/> 8.8 DL HARQ Operation<br/> 8.9 DL Data Rate Capability<br/> 8.10 Processing Time for DL Data<br/> 8.11 Demodulation Reference Signals for Data<br/> 8.12 PDSCH DM-RS<br/> 8.13 DL Phase Tracking Reference Signal<br/> 8.14 Channel State Information Reference Signal<br/> 8.15 Tracking Reference Signal<br/> 8.16 DL MIMO Scheme<br/> 8.17 CSI Feedback<br/> 8.18 Beam Management for the PDSCH<br/> 8.19 Signal Quasi Co-Location<br/>9 Uplink Control Operation<br/> 9.1 Uplink Control in 4G LTE<br/> 9.2 UCI Types and Payload Sizes in 5G NR<br/> 9.3 PUCCH Formats in 5G NR<br/> 9.4 PUCCH Resource Determination in 5G NR<br/> 9.5 UCI on PUSCH in 5G NR<br/> 9.6 Channel Coding for UCI<br/>10 Uplink Data Operation<br/> 10.1 UL MCS and TBS Determination<br/> 10.2 UL Resource Allocation in the Time Domain<br/> 10.3 UL Resource Allocation in the Frequency Domain<br/> 10.4 UL Rate Matching<br/> 10.5 UL HARQ Operation<br/> 10.6 UL Soft Buffer Management<br/> 10.7 UL Data Rate Capability<br/> 10.8 Processing Time for UL Data<br/> 10.9 PUSCH DM-RS<br/> 10.10 UL Phase Tracking Reference Signal<br/> 10.11 Sounding Reference Signal<br/> 10.12 UL MIMO Scheme<br/> 10.13 Beam Management for the PUSCH<br/> 10.14 UL Power Control<br/> 10.15 UL Timing<br/>11 Coexistence of 4G and 5G<br/> 11.1 Adjacent Channel Coexistence<br/> 11.2 Same Channel Coexistence<br/> 11.3 EN-DC Power Control<br/> 11.4 Switched EN-DC UL<br/>12 5G in Unlicensed and Shared Spectrum<br/> 12.1 Unlicensed Operation in LTE<br/> 12.2 Overview<br/> 12.3 Channel Access<br/> 12.4 Discovery Burst<br/> 12.5 Physical Layer Extensions for Uplink<br/> 12.6 Increased Scheduling Flexibility<br/>13 Vertical Expansion: URLLC<br/> 13.1 A Brief History of 3GPP Standardization Related to URLLC<br/> 13.2 Use Cases and Deployment Scenarios for 5G NR URLLC<br/> 13.3 Resource Management for URLLC<br/> 13.4 Optimizing Link Efficiency for URLLC<br/> 13.5 Downlink Resource Sharing for Distinct Service Types<br/> 13.6 Uplink Resource Sharing for Distinct Service Types<br/> 13.7 Handling Distinct Services at the UE<br/> 13.8 Other Related Aspects<br/>14 Vertical Expansion: MTC<br/> 14.1 A Brief History of MTC in 3GPP<br/> 14.2 Key Technical Enablers for eMTC<br/> 14.3 Key Technical Enablers for NB-IoT<br/> 14.4 Integration of eMTC and NB-IoT into 5G NR<br/> 14.5 Future Trends<br/>15 5G Vertical Expansion: V2X<br/> 15.1 Overview<br/> 15.2 Background: LTE V2X<br/> 15.3 NR V2X<br/>16 Vertical Expansion: Broadcast and Multicast<br/>17 Miscellaneous Topics for 5G<br/> 17.1 Overview<br/> 17.2 Interference Management<br/> 17.3 UE Power Savings<br/> 17.4 NR Positioning<br/> 17.5 Two-Step RACH<br/> 17.6 Multi-RAT DC/CA Enhancements<br/> 17.7 Mobility Enhancements<br/> 17.8 Integrated Access and Backhaul<br/>18 A Look at Typical 5G Commercial Deployments<br/>19 5G: What’s Next?<br/> 19.1 Overview<br/> 19.2 Radio Projects in Release 17<br/> 19.3 Systems Projects in Release 17<br/> 19.4 NR Expansion into Higher Frequencies<br/> 19.5 Sidelink Beyond V2X<br/> 19.6 Relaying Operation<br/> 19.7 Edge Applications<br/> 19.8 On the Path to 6G<br/>Index<br/>