ikselkä Introduction 67 5G Architecture Options Contents 5G Core Network Architecture 5.3.1 Access and Mobility Management Function 5.3.2 Session Management Function 5.3.3 User Plane Function 5.3.4 Data Storage Architecture 5.3.5 Policy Control Function 5.3.6 Network Exposure Function 5.3.7 Network Repository Function 5.3.8 Network Slice Selection 5.3.9 Non-3GPP Interworking Function 5.3.10 Auxiliary 5G Core Functions 5G RAN Architecture 5.4.1 NG-Interface 5.4.2 Xn-Interface 5.4.3 E1-Interface 80 5.4.4 F1-Interface 80 Network Slicing 5.5.1 Interworking with LTE Summary References 86 5G Physical Layer Mihai Enescu, Keeth Jayasinghe, Karri Ranta-Aho, Karol Schober, and Antti Toskala Introduction 87 5G Multiple Access Principle Physical Channels and Signals Basic Structures for 5G Frame Structure 5G Channel Structures and Beamforming Basics Random Access Downlink User Data Transmission Uplink User Data Transmission Uplink Signaling Transmission Downlink Signaling Transmission Physical Layer Procedures 6.11.1 HARQ Procedure 6.11.2 Uplink Power Control 6.11.3 Timing Advance 5G MIMO and Beamforming Operation 6.12.1 Downlink MIMO Transmission Schemes 6.12.2 Beam Management Framework 6.12.2.1 Initial Beam Acquisition 6.12.2.2 Beam Measurement and Reporting 116 6.12.2.3 Beam Indication: QCL and Transmission Configuration Indicator (TCI) 6.12.2.4 Beam Recovery 6.12.3 CSI Framework 6.12.3.1 Reporting Settings 6.12.3.2 Resource Settings Contents 6.12.3.3 Reporting Configurations 6.12.3.4 Report Quantity Configurations 6.12.4 CSI Components 6.12.4.1 Channel Quality Indicator (CQI) 6.12.4.2 Precoding Matrix Indicator (PMI) 6.12.4.3 Resource Indicators: CRI, SSBRI, RI, LI 6.12.5 Uplink MIMO Transmission Schemes 6.12.5.1 Codebook-Based Uplink Transmission 6.12.5.2 Non-Codebook-Based Uplink Transmission Channel Coding with 5G 6.13.1 Channel Coding for Data Channel 6.13.1.1 5G LDPC Code Design 6.13.1.2 5G LDPC Coding Chain 6.13.2 Channel Coding for Control Channels 6.13.2.1 5G Polar Coding Design Dual Connectivity 5G Data Rates Ph