![]() 1 Introduction 7 2 Market drivers 10 2.1 Introduction 10 2.2 Key Ideas 11 2.3 Spectrum 13 2.3.1 Spectrum Needs 13 2.3.2 Target Spectrum 14 2.3.3 Spectrum Implications 15 2.4 New spectrum models 16 2.4.1 New Ways of Sharing Spectrum 17 2.4.2 Localized Licensing 18 2.5 Regulations Facilitating 5G Applications 19 2.6 Network deployment models 19 2.7 Technical Requirements of 5G Radio Interfaces 20 2.8 Business drivers 22 2.9 Role of standards 24 2.10 Role of open source 26 2.11 Competition 28 2.12 Challenges 29 2.13 Summary 30 2.13 References 31 3 5G System Overview 33 3.1 Introduction 33 3.2 5G Core Network 35 3.2.1 Introduction 35 3.2.2 Service-based architecture 36 3.2.3 Control- and user-plane separation 40 3.2.4 Common access-agnostic core network 41 3.2.5 Enablers for concurrent and efficient access to local and centralized services 41 3.2.6 Network slicing 44 3.2.7 Private networks 46 3.2.8 References 48 3.3 NG Radio Access Network 50 3.3.1 Introduction 50 3.3.2 Network Protocol Stacks 52 3.3.3 NG Interface 54 3.3.4 Xn interface 59 3.3.5 Additional NG-RAN features 64 3.3.6 References 66 3.4 NR Protocol Stack 68 3.4.1 Introduction 68 3.4.2 NG RAN architecture 69 3.4.3 NR User Plane 69 3.4.4 Supporting QoS with 5GC 72 3.4. ![]() Bibliography Includes bibliographical references and index.
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