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[null,"1.","Record Nr.",null,"UNINA9911019670303321"]
[null,null,"Autore",null,"Vanelli-Coralli Alessandro"]
[null,null,"Titolo",null,"5G Non-Terrestrial Networks : Technologies, Standards, and System Design"]
[null,null,"Pubbl/distr/stampa",null,"Newark : , : John Wiley & Sons, Incorporated, , 2024"]
[{"$nulls":4},"©2024"]
[null,null,"ISBN",null,"9781119891185"]
[{"$nulls":4},"1119891183"]
[{"$nulls":4},"9781119891161"]
[{"$nulls":4},"1119891167"]
[null,null,"Edizione",null,"[1st ed.]"]
[null,null,"Descrizione fisica",null,"1 online resource (335 pages)"]
[null,null,"Disciplina",null,"621.38456"]
[null,null,"Soggetti",null,"5G mobile communication systems"]
[{"$nulls":4},"Artificial satellites in telecommunication"]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,"Nota di contenuto",null,"Cover -- Title Page -- Copyright -- Contents -- Preface -- About the Authors -- Acknowledgments -- Acronyms -- Chapter 1 Introduction -- 1.1 What is 5G NTN? -- 1.2 Use Cases for 5G NTN -- 1.3 ITU‐R Vision and Requirements on the Satellite Component of IMT‐2020 -- 1.3.1 Satellite Component of IMT‐2020: Usage Scenarios -- 1.3.2 Requirements for the Satellite Radio Interface(s) of IMT‐2020 -- 1.4 NTN Roadmap in 3GPP -- 1.5 3GPP Requirements for 5G via Satellite -- 1.6 Technical Challenges -- 1.7 Satellite RAN Architecture -- 1.8 NTN Spectrum -- 1.9 3GPP Work on NTN in Release‐15 and Release‐16 -- 1.10 3GPP work on NTN in Release‐17 and Release‐18 -- 1.11 NTN in Release‐19 and Beyond -- 1.12 3GPP and Standardization -- References -- Chapter 2 The 3GPP 5G Overview -- 2.1 Introduction -- 2.2 5G System Architecture -- 2.2.1 5G Core Network -- 2.2.2 NG Radio Access Network -- 2.2.3 Dual Connectivity -- 2.2.4 Connectivity Options -- 2.2.5 Split Architecture -- 2.2.5.1 CU-DU Split -- 2.2.5.2 CP-UP Split -- 2.2.6 IoT and MTC Aspects -- 2.3 3GPP and 5G Standardization -- References -- Chapter 3 Non‐Terrestrial Networks Overview -- 3.1 Elements of a Satellite Communications System -- 3.2 Orbits and Constellations -- 3.2.1 Principles of Orbital Motion -- 3.2.2 Types of Orbits -- 3.2.3 Constellation Design -- 3.2.4 Satellite Orbit Determination and Prediction -- 3.3 Propagation and Link Performance "]
[{"$nulls":4},"-- 3.3.1 Earth-Satellite Geometry -- 3.3.1.1 Delay Characterization -- 3.3.1.2 Doppler Characterization -- 3.3.2 Link Performance -- 3.3.2.1 Antenna Parameters and Received Power -- 3.3.2.2 Additional Losses -- 3.3.2.3 Individual Link Performance -- 3.3.2.4 Overall Link Performance -- 3.3.2.5 NTN Link Budget Examples -- References -- Chapter 4 NR NTN Architecture and Network Protocols -- 4.1 Introduction -- 4.2 Architecture Overview -- 4.2.1 NG Interface Functions."]
[{"$nulls":4},"4.2.2 Xn Interface Functions -- 4.3 User Plane and Control Plane -- 4.3.1 Control Plane -- 4.3.2 User Plane -- 4.4 Interworking with Terrestrial Mobile Networks -- 4.4.1 Mobility -- 4.4.2 Dual Connectivity -- 4.5 Impact on Other Technologies: IoT NTN -- 4.6 Regenerative Architectures -- 4.6.1 NG‐RAN Node on Satellite -- 4.6.2 Split Architectures -- 4.6.2.1 CU-DU Split -- 4.6.2.2 Lower‐layer Split -- 4.7 Conclusions -- References -- Chapter 5 NR NTN Radio Interface -- 5.1 Introduction -- 5.2 NR Basic Transmission Scheme -- 5.2.1 NR Waveform -- 5.2.2 Modulation and Coding Scheme -- 5.2.3 Channel Coding -- 5.2.4 NR Multiple Access Scheme -- 5.2.5 NR Frame Structure -- 5.2.6 Bandwidth Part Operation -- 5.2.7 NR Radio Channels -- 5.2.8 NR Reference Signals -- 5.2.9 Multi‐antenna System -- 5.2.9.1 MIMO Schemes -- 5.2.9.2 Beam Management -- 5.2.9.3 Polarization Signaling in NTN -- 5.3 Downlink Synchronization Procedure in NTN -- 5.4 Uplink Synchronization Procedure in NTN -- 5.4.1 Uplink Timing Control -- 5.4.1.1 Uplink Timing Control in NR TN -- 5.4.1.2 Uplink Timing Control in NR NTN -- 5.4.1.3 NTN Higher‐layer Parameters for Uplink Timing Control -- 5.4.1.4 Timing Advance Adjustment Delay -- 5.4.2 Uplink Frequency Synchronization -- 5.5 NR Timing Relationships Enhancements for NR NTN -- 5.5.1 Timing Relationships Enhanced With Koffset -- 5.5.1.1 Random‐access Procedure in NTN -- 5.5.1.2 Resource Allocation in Time Domain -- 5.5.1.3 Other Timing Relationships Enhanced With Koffset -- 5.5.2 Timing Relationships Enhanced With kmac -- 5.5.2.1 Uplink Power Control -- 5.5.2.2 Beam Failure Recovery -- 5.6 Hybrid ARQ Enhancements for NR NTN -- 5.6.1 HARQ Functionality Basics -- 5.6.2 Increasing the Number of HARQ Processes in NTN -- 5.6.3 Disabling HARQ Feedback in NTN -- 5.6.3.1 Disabling HARQ Feedback Activation -- 5.6.3.2 HARQ ACK Codebook Enhancements."]
[{"$nulls":4},"5.6.4 Transmission Timing for HARQ‐ACK on PUCCH -- 5.6.4.1 Transmission Timing for HARQ‐ACK on PUCCH in Terrestrial Network -- 5.6.4.2 Transmission Timing for HARQ‐ACK on PUCCH in NTN -- 5.6.4.3 PDSCH Scheduling Restriction -- References -- Chapter 6 Impacts on the System Architecture and Network Protocol Aspects -- 6.1 Introduction -- 6.2 5G QoS and NTN -- 6.3 Network Attach, AMF Selection, and UE Location -- 6.3.1 Network Identities -- 6.3.2 Multiple TACs Support -- 6.3.3 UE Attach and Location Verification -- 6.4 Random‐access Procedure -- 6.5 Other Enhancements at MAC -- 6.5.1 Hybrid ARQ Operation Enhancements -- 6.5.2 Logical Channel Prioritization Enhancements -- 6.5.3 Enhancements on DRX Functionality -- 6.5.4 Extension of Other MAC Timers -- 6.6 RLC, PDCP Enhancements -- 6.6.1 RLC Sublayer -- 6.6.2 PDCP Sublayer -- 6.7 NTN‐specific System Information -- 6.8 Mobility Aspects -- 6.8.1 Idle Mode and Inactive Mode Mobility -- 6.8.1.1 Location‐based Measurement -- 6.8.1.2 Time‐based Measurement -- 6.8.2 Connected Mode Mobility -- 6.8.2.1 RRM Enhancements -- 6.8.2.2 Conditional Handover -- 6.9 Feeder Link Switchover -- 6.10 Network Management Aspects -- References -- Chapter 7 RF and RRM Requirements -- 7.1 Frequency Bands In Which NTN Can Operate -- 7.1.1 Satellite Networks -- 7.1.2 HAPS‐based Networks -- 7.2 NTN Architecture and Interfaces "]
[{"$nulls":4},"-- 7.3 Definition of RF Performances and Related Methodology -- 7.3.1 Coexistence Analysis -- 7.3.2 RF Performances -- 7.4 RRM Requirements -- 7.4.1 System Aspect -- References -- Chapter 8 NB‐IoT and eMTC in NTN -- 8.1 Overview -- 8.1.1 Cellular IoT in 3GPP Roadmap -- 8.1.2 Study Item on IoT NTN -- 8.1.3 Normative Work on IoT NTN -- 8.2 Architecture and Deployments Scenarios -- 8.2.1 Potential Use Cases -- 8.2.2 System Architecture -- 8.2.3 NTN IoT Spectrum -- 8.3 Enhancements for NB‐IoT/eMTC Support in NTN."]
[{"$nulls":4},"8.3.1 Timing and Frequency Pre‐compensation -- 8.3.1.1 Uplink Synchronization Validity Duration -- 8.3.1.2 GNSS Operation in IoT NTN -- 8.3.2 Timing Relationship Enhancements -- 8.3.3 Discontinuous Coverage and Assistance Information -- 8.3.4 Mobility Management -- 8.3.5 Feeder‐link Switchover -- 8.3.6 Network‐interfaces Signaling Aspects -- 8.3.7 MME(Re‐)Selection by eNB -- 8.3.8 Verification of UE Location -- 8.3.9 O&amp -- M Requirements -- 8.3.10 Other NAS Protocol Aspects -- References -- Chapter 9 Release 18 and Beyond -- 9.1 NTN in the Evolving Context of 5G, Beyond 5G and 6G -- 9.2 Non‐Terrestrial Networks and 5G -- 9.2.1 3GPP Standardization Status -- 9.2.2 Industrial Projects Based on Rel‐17 and Rel‐18 -- 9.2.2.1 Direct Connectivity to Smartphones -- 9.2.2.2 Direct Connectivity to IoT Devices -- 9.2.2.3 Connectivity to Cell -- 9.3 Toward 6G and Non‐Terrestrial Networks -- 9.3.1 6G System Versus 5G System -- 9.3.2 6G Versus 5G Non‐Terrestrial Network Component -- 9.3.3 6G NTN Design Principles -- 9.3.3.1 Multi‐terminal Types and Usage Conditions -- 9.3.3.2 Multi‐mission Radio Protocol(s) -- 9.3.3.3 Multi‐dimensional Network Infrastructure -- 9.3.3.4 Multi‐constraints Radio Access Network -- 9.3.3.5 Unification With the Terrestrial Network Component -- 9.3.4 Possible Evolution of NTN Standards -- 9.3.4.1 Enhancements of NTN 5G‐Advanced in 3GPP -- 9.3.4.2 Potential Enhancements of NTN for 6G -- References -- Index -- EULA."]
[null,null,null,"Sommario/riassunto","This book provides an in-depth exploration of 5G networks, focusing on the integration of Non-Terrestrial Networks (NTN) within the 3GPP standards. It addresses the technical challenges and advancements necessary for achieving global service continuity and network resiliency by combining terrestrial and satellite communication technologies. The text covers numerous aspects of 5G NTN, including system architecture, network protocols, radio interface, and the impact of new technologies such as NB-IoT and eMTC. It aims to prepare industry stakeholders for the evolving requirements of 5G-Advanced and 6G networks, offering insights into the current and future landscape of telecommunications. The content is designed for professionals and researchers in the field of telecommunications engineering, providing a comprehensive overview of the standards and innovations shaping the future of global communications."]