A Network Architect’s Guide to 5G

,Contents at a Glance
1. Introduction
2. 1 A Peek at the Past
3. 2 Anatomy of Mobile Communication Networks
4. 3 Mobile Networks Today
5. 4 The Promise of 5G
6. 5 5G Fundamentals
7. 6 Emerging Technologies for 5G-Ready Networks: Segment Routing
8. 7 Essential Technologies for 5G-Ready Networks: DC Architecture and Edge Computing
9. 8 Essential Technologies for 5G-Ready Networks: Transport Services
10. 9 Essential Technologies for 5G-Ready Networks: Timing and Synchronization
11. 10 Designing and Implementing 5G Network Architecture
12. Afterword: Beyond 5G
13. Index

Contents
1. Introduction
1. Chapter 1: A Peek at the Past
1. Brief History of Pre-Cellular Mobile Networks
2. The Very First Cellular Networks: 1G
1. Innovations in Radio Access
2. An Introduction to Mobile Transport
3. Emergence of a Mobile Core
3. Second Generation (2G) Cellular Networks
1. 2G Innovations in Radio Access
2. 2G Mobile Transport
3. 2G Mobile Core
4. 2G Technology Summary
4. Generation Two and a Half (2.5G)
5. Enhanced Data Rates for GSM Evolution (EDGE)
6. Third Generation (3G)
1. 3G Innovations in Radio Access
2. 3G Mobile Transport
3. 3G Mobile Core
4. 3G Enhancements
5. 3G Technology Summary
7. Summary
8. References
2. Chapter 2: Anatomy of Mobile Communication Networks
1. Understanding Radio Access Network
1. How the RF Spectrum Is Allocated
2. Choosing the Right Frequency
3. RF Duplexing Mechanisms

, 4. Cell Splitting and Sectoring
5. What’s a Cell Site?
2. Mobile Transport and Backhaul
1. What Constitutes Mobile Backhaul Networks?
2. Cell Site Connectivity Models
3. Mobile Core Concepts
4. Circuit Switched Core
5. Packet Switched Core
3. Summary
4. References
3. Chapter 3: Mobile Networks Today
1. 3GPP Releases and Evolved Packet System
1. Long Term Evolution (LTE)
2. System Architecture Evolution (SAE)
2. Evolved Packet Core (EPC) Architecture
1. EPC Functions
2. Data over EPS
3. Voice over EPS
3. RAN Evolution
1. Evolved UTRAN
2. From Distributed-RAN to Centralized-RAN
4. Modern Mobile Backhaul Networks
1. Enabling Technologies for Backhaul Networks
2. From Backhaul to xHaul
5. Summary
6. References
4. Chapter 4: The Promise of 5G
1. Emerging Trends and Expectations from Mobile Networks
1. Increased Speed and Capacity
2. Content Now
3. Real-Time and Immersive Experiences
4. Universal Connectivity and Reliability
5. Connected Everything
6. Dedicated Services and Private Networks
7. On-Demand, Rapid Service Deployment
2. 5G Technology Enablers
1. New Spectrum and Advanced Antenna Functions
2. RAN and Mobile Core Decomposition
3. Networking Slicing
4. Automation
5. Mapping 5G Enablers to Market Trends
3. 5G Service Offerings
1. Enhanced Mobile Broadband (eMBB)
2. Ultra-Reliable and Low Latency Communications (URLLC)
3. Massive Machine-Type Communications (mMTC)
4. Private Mobility

, 4. Summary
5. References
5. Chapter 5: 5G Fundamentals
1. 5G Radio Access Network
1. Air Interface Enhancement
2. 5G NR Advanced Antenna Functions
3. RAN Virtualization and Decomposition
4. Understanding the RAN Functional Splits
5. Open RAN
6. Summarizing vRAN Split Options and Architecture
2. 5G Core Network
1. Control and User Plane Separation (CUPS)
2. Towards a Cloud-Native 5G Core
3. Service-Based Architecture: Decomposition of Packet Core
4. User Authentication and Registration
5. Establishing a PDU Session
6. QoS in 5G
7. Transition to 5G Core Network
3. 5G Transport Network
1. Transporting Radio Traffic over Packet-Based Fronthaul
2. 5G xHaul Transport Choices
3. Incorporating Data Centers into xHaul
4. Distributed Peering Across xHaul
4. Summary
5. References
6. Chapter 6: Emerging Technologies for 5G-Ready Networks: Segment Routing
1. Complexity in Today’s Network
2. Introducing Segment Routing
1. Concept of Source Routing and Segments
2. Segment IDs (SIDs) and Their Types
3. Defining and Distributing Segment Information
3. Segment Routing Traffic Engineering (SR-TE)
1. Current Approach to Traffic Engineering
2. Traffic Path Engineering with Segment Routing
3. Segment Routing TE Policies
4. Traffic-Steering Mechanisms
4. Software-Defined Transport with Segment Routing
1. Building Blocks for Software-Defined Transport
2. Application Integration with Transport Network
5. 5G Transport Network Slicing
1. Network Slicing Options
2. Segment Routing Flexible Algorithm
6. Redundancy and High Availability with Segment Routing
1. Segment Routing Topology Independent Loop-Free Alternate
2. Segment Routing Loop Avoidance Mechanism
7. Segment Routing for IPv6 (SRv6)