lexing techniques 6.1.1. MIMO mechanism 6.1.2. Baseband beamforming 6.1.3. Active antennas and massive-MIMO 6.1.4. Antenna systems 6.2. Antenna port 6.2.1. Downlink transmission 6.2.2. Uplink transmission 6.3. Uplink Control Information (UCI) 6.4. PDSCH transmission 6.4.1. Single-CSI and multiple-CSI transmission 6.4.2. Codebook configuration 6.5. PUSCH transmission 6.6. Beamforming management 6.6.1. Burst SSB: beam sweeping 6.6.2. Cell selection and cell re-selection procedures 6.6.3. Beam management 6.7. References Chapter 7. 5G-NR Radio Interface - Bandwidth Part 7.1. Bandwidth part 7.2. CORESET 7.2.1. Configuration of CORESET#0 7.2.2. CORESET configuration NG-RAN and 5G-NR 7.3. BWP switching procedure 7.4. References Chapter 8. 5G-NR Radio Interface - Data Link Layer 8.1. SDAP protocol 8.1.1. Operations 8.1.2. The protocol structure 8.2. PDCP 8.2.1. Procedures 8.2.2. Operations 8.2.3. Protocol structure 8.3. RLC protocol 8.3.1. Operations 8.3.2. Protocol structure 8.4. MAC protocol 8.4.1. Operations 8.4.2. Protocol structure 8.4.3. Control element 8.5. References Chapter 9. 5G-NR Radio Interface - Radio Access Procedure 9.1. System information 9.1.1. MIB message 9.1.2. SIB1 message 9.1.3. SIB2 message 9.1.4. SIB3 message 9.1.5. SIB4 message 9.1.6. SIB5 message 9.1.7. SIB6 message 9.1.8. SIB7 message 9.1.9. SIB8 message 9.1.10. SIB9 message 9.1.11. Summary 9.2. Connection management 9.2.1. Paging 9.2.2. Connection establishment 9.2.3. Activation of security 9.2.4. Connection reconfiguration 9.2.5. Connection re-establishment 9.2.6. Connection release Contents 9.3. Measurement configuration 9.3.1. Measurement objects 9.3.2. The measurement events 9.3.3. The filtering of the measurement 9.4. References Index Preface This book aims to describe the deployment of 5G-NSA and 5G-SA. For the 5G-NSA mode, dual MR-DC connectivity is based on radio measurements allowing the master 4G base station MeNB to add or to remove a 5G secondary node SgNB. For the 5G-SA mode, the mobile is attached to the 5G core network. Even tho