NG-RAN and 5G-NR: 5G Radio Access Network and Radio Interface

Description

NG-RAN and 5G-NR describes the deployment of 5G NSA (non standalone 5G) and 5G-SA (standalone 5G). 5G-NSA deals with radio access entities. For the 5G-NSA mode, dual MR DC connectivity is based on radio measurements, allowing the master 4G base station MeNB to add or remove a secondary 5G node SgNB. This book describes the architecture of the NG radio access network and the 5G-NR radio interface according to the 3GPP (3rd Generation Partnership Project) specifications. The overall architecture of the NG-RAN, including the NG, Xn and F1 interfaces and their interaction with the radio interface, are also described. The 5G-NR physical layer is mainly connected by implementing antennas, which improves transmission capacity. 5G-SA deals with the 5G Core network. In the 5G-SA model, the mobile is attached to the 5G Core network through NG-RAN. The book explains radio procedure, from switching on a device to establishing a data connection, and how this connection is maintained even if mobility is involved for both 5G-SA and 5G-NSA deployment. NG-RAN and 5G-NR is devoted to the radio access network, but mobile registration, establishment procedures and re-establishment procedures are also explained. Cover Half-Title Page Title Page Copyright Page Contents Preface 1. NG-RAN Network – Functional Architecture 1.1. Functional architecture NSA/SA 1.1.1. Option 3 1.1.2. Option 4 1.1.3. Option 7 1.2. Description of the NG-RAN network 1.2.1. The NG-RAN 1.2.2. AMF (Access management and Mobility Function) 1.2.3. SMF (Session Management Function) 1.2.4. UPF (User Plane Function) 1.3. Functional separation between the NG-RAN radio interface and the 5G core network 1.3.1. Mobile identities 1.3.2. Mobile mobility 1.4. Scheduling and QoS 1.4.1. Scheduling 1.4.2. Support for quality of service on radio link 1.5. Security architecture 1.6. Network slicing 1.7. References 2. NG-RAN Network – Protocol Architecture 2.1. The protocol architecture of the radio interface 2.1.1. Protocol stack on the Uu interface 2.1.2. The protocol architecture on the Xn interface 2.1.3. Protocol architecture on the F1 interface 2.1.4. Protocol stack on the NG interface 2.2. Procedures on the radio network access 2.2.1. XnAP procedures 2.2.2. F1 interface procedures 2.2.3. NG-AP procedures 2.3. Identities of the XnAP and NG-AP application protocols 2.4. References 3. NG-RAN Network – Procedures 3.1. General procedure of the 5G-NSA mode 3.1.1. LTE search procedure 3.1.2. Random access procedure 3.1.3. Data transfer 3.1.4. Removing a secondary node 3.2. General procedures of the 5G-SA 3.2.1. Initial random access and beam management procedure 3.2.2. Establishment of radio connection 3.2.3. Register request 3.2.4. The procedure for establishing a PDU session 3.3. References 4. 5G-NR Radio Interface – The Physical Layer 4.1. 5G-NR radio interface 4.1.1. OFDM waveform 4.1.2. Frequency bands and multiplexing methods 4.1.3. NR frame structure 4.1.4. NR frame structure in the time domain 4.2. TDD mode configurations 4.2.1. Static configuration per cell 4.2.2. Specific TDD configuration 4.2.3. The dynamic configuration of the transmission for a group of mobiles 4.3. Physical resource 4.3.1. Resource grid 4.3.2. Resource bloc and bandwidth part 4.4. Physical channels and physical signals 4.4.1. Physical signals and reference signals 4.4.2. Physical channels 4.5. Downlink transmission 4.5.1. Synchronization signal 4.5.2. Reference signals 4.5.3. Physical control and data channels 4.6. Transmission in uplink 4.6.1. Physical reference signals 4.6.2. The physical channel 4.7. References 5. 5G-NR Radio Interface – Operations on the Frequency Bands 5.1. Operations on the frequency bands 5.2. Carrier aggregation 5.2.1. Carrier aggregation in the FR1 band 5.2.2. Carrier aggregation in the FR2 band 5.3. Supplementary UpLink (SUL) 5.4. Synchronization on the secondary cell 5.4.1. Carrier aggregation procedure 5.4.2. SUL procedure 5.5. References 6. 5G-NR Radio Interface – MIMO and Beamforming 6.1. Multiplexing 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 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 7.3. BWP switching procedure 7.4. References 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 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 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 Other titles from iSTE in Networks and Telecommunications