Jyrki T. J. Penttinen, Michele Zarri, Dongwook Kim

Open RAN Explained (eBook, PDF)

The New Era of Radio Networks

• Format: PDF

Produktbeschreibung

Open RAN EXPLAINED A pioneering outline of the concepts that enhance 5G capabilities to revolutionize the telecommunications industry. Open radio-access network, or Open RAN, is a type of network architecture in which baseband and radio unit components from different suppliers can operate seamlessly in concert. Advances in network communication were, until recently, hampered by the proprietary network operations of each mobile operator; the advent of 5G, however, with its service-based architecture model, has finally opened the door to the expansion of connectivity on the Open RAN model. This transformation promises to define the future of mobile network architecture. Open RAN Explained is among the first books dedicated to this groundbreaking technology. Its comprehensive but accessible summary of current and future developments in Open RAN promises to facilitate network deployment and device design, as well as to provide a handy reference for network professionals in a range of different fields. The result is a must-read volume for anyone looking to understand the future of wireless communication. Open RAN Explained readers will also find: * In-depth description of the challenges and opportunities of network modularization * Analysis conversant with the latest release specifications of the O-RAN Allliance, GSMA OP/TIP, and other key emerging technologies * Authors working at the leading edge of 5G network communications Open RAN Explained is ideal for network operators, network element and device manufacturers, telecommunications researchers, and advanced students, as well as industry-adjacent figures such as regulators, consultants, and marketing professionals.

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Produktdetails

• Verlag: Jossey-Bass
• Seitenzahl: 240
• Erscheinungstermin: 29. April 2024
• Englisch
• ISBN-13: 9781119847090
• Artikelnr.: 70669647

Autorenporträt

Jyrki T. J. Penttinen is Senior Technology Manager, North America, GSMA. He has worked in mobile telecommunication since 1994. Since then, he has worked with Nokia and Giesecke+Devrient Mobile Security, and has experience in research and operational activities for both radio and core network domains, including planning, optimization, measurements, system architectures, and services. He is currently focusing on 5G, designing guidelines for the North American and Caribbean mobile network operators. Michele Zarri is an independent management consultant. He started his career in Fujitsu R&D working on layer 1 of WCDMA before moving to Deutsche Telekom representing the company in 3GPP. Michele served two terms as 3GPP TSG SA WG1 chairman and has been rapporteur of several specifications and work items. In 2015, Michele joined the GSMA as technical director of the 5G projects. Dongwook Kim is Specifications Manager of the 3GPP, the secretary of 3GPP CT3 working group, and the work plan coordinator of 3GPP TSG CT. He has worked in the industry for 11 years and his past employers include Korea Telecom (KT), GSM Association (GSMA), and Telecom Infra Project (TIP). His career has focused on promoting latest telecom technologies and serving as the industry think tank.

Inhaltsangabe

Author Biographies xiii

Preface xv

Acknowledgments xix

Abbreviations xxi

1 Introduction 1

1.1 Overview 1

1.2 Readiness of the Ecosystem 2

1.2.1 Virtualization 2

1.2.2 Industry Forums 3

1.2.3 Statistics 4

1.2.4 Path Toward Open RAN Networks 5

1.2.5 Security Aspects 7

1.2.6 Commercial Deployments 7

1.3 Focus and Contents 7

References 9

2 Open RAN: Journey from Concept to Development 11

2.1 Overview 11

2.2 Requirements 11

2.3 Standards 12

2.3.1 3GPP 12

2.3.2 O-RAN Alliance 14

2.3.3 Telecom Infra Project 18

2.3.4 Collaboration of Organizations 22

2.4 Open Source and Open RAN 23

References 25

3 Evolution of the RAN 27

3.1 Architecture of a Mobile Communications System 27

3.1.1 System-Level Overview 27

3.1.2 User Equipment 27

3.1.3 Radio Access Network 28

3.1.4 Core Network 29

3.2 Components and Structure of the RAN 29

3.2.1 The Radio Base Station 29

3.2.2 RAN Service Area 30

3.3 RAN Enhancements from Early Mobile System to 4G 33

3.3.1 Introduction 33

3.3.2 RAN Key Performance Indicators 34

3.3.3 Early Mobile System Radio Access Networks 34

3.3.4 The Evolved Universal Terrestrial Radio Access Network 35

3.3.4.1 Baseband Unit and Remote Radio Head Split 36

3.3.4.2 Fronthaul Protocol Evolution 36

3.3.4.3 X2 Interface Between Base Stations 37

3.3.4.4 User Plane Control Plane Separation 38

3.4 Role of Information Technology in the Evolution of the RAN in 5G and Open RAN 40

3.4.1 Introduction 40

3.4.2 Virtualization 40

3.4.3 Cloudification 42

3.4.4 Software-defined Networking 44

3.5 RAN Evolution in 5G 46

3.5.1 The Next-Generation Radio Access Network 46

3.5.2 gNB Split Architecture 47

3.5.2.1 Rationale for Split Architecture 47

3.5.2.2 Split Architecture Topology Options 49

3.5.3 Fronthaul Evolution: eCPRI 50

3.6 Evolution of the Base Station Architecture 52

3.6.1 Overview 52

3.6.2 Distributed RAN 52

3.6.3 Centralized RAN 53

3.6.4 Virtualized RAN (vRAN) 55

3.6.4.1 Concept 55

References 56

4 O-RAN Alliance Architecture 59

4.1 High-Level Objectives of the O-RAN Alliance Architecture 59

4.2 O-RAN Alliance Work on 4G 59

4.2.1 Laying the Ground for a Multi-vendor Environment 59

4.2.2 Standalone and Non-standalone 5G 60

4.2.3 The O-eNB and 4G Interfaces Profiling 61

4.2.3.1 O-eNB 61

4.2.3.2 X2 and W1 Profiling 62

4.3 O-RAN 5G Architecture 63

4.3.1 Architecture Overview 63

4.3.2 O-RAN Alliance Architecture Network Components 64

4.3.2.1 O-RAN Central Unit (O-CU) 64

4.3.2.2 O-RAN Distributed Unit (O-DU) 64

4.3.2.3 O-RAN Radio Unit (O-RU) 65

4.3.2.4 Service Management and Orchestration Framework 65

4.3.2.5 O-Cloud 65

4.3.2.6 RAN Intelligent Controller 65

4.3.3 Interfaces 65

4.3.3.1 3GPP-Defined Interfaces 65

4.3.3.2 O-RAN Alliance-Defined Interfaces 66

4.4 O-RAN Alliance Architecture Innovation 66

4.4.1 O-RAN Alliance Two-Pronged Approach 66

4.4.2 Open Fronthaul 67

4.4.3 Stricter Approach to RAN Functional Split 67

4.4.3.1 Introduction 67

4.4.3.2 The