5G Essentials

5G Introduction

• Introducing 5G Features
• What a 5G “Service” is not
• Introducing the 5G Network Architecture
• Comparing 5G to 4G
• Stand Alone
• Non-standalone
• EN-DC and X2-C messaging
• IMS integration

Session and Service Continuity

• Session and Service Continuity (SSC)

Message Queuing

• Message Queuing (MQ) in a Nutshell
• Defining 3GPP Exposure
• Subscribe and Publish Message Flow
• Embedding JSON in HTTP Messages

The 5G Slice

• Definitions
  
  • Network Slice Instance
  • Slice Service Type
  • Network Slice Subnets
  • Network Slice Template
  • Network Slice Assistance Information
  • Information Object Class (TS-28541)
  • Network Functions Virtualization
  • Network Resource Model
  • Solution Set
• Class Diagrams overview (TS-28541)
• NSI Lifecycle (TS 28.531)
• Netconf/YANG Review
• Provisioning procedures of networks and network slicing (TS 28.531)
• ETSI NFV-MANO
• RAN slicing
• Transport slicing - Reliable Slicing of 5G Transport Networks with Dedicated Protection
• using Elastic Optical Networking (EON) {https://arxiv.org/pdf/1906.10265.pdf}
• Core selection mechanisms
  
  • PLMN, APN, DECOR, eDOCOR, 5G slicing
• 4G slicing examples
  
  • Radio Resource partitioning, QCI, “congestion-caused” Access Class Barring, APR for contention
• User Plane Function
• Why PFCP rather than OF (OpenFlow)
• N4 Interface - Packet Forwarding Control Plane Protocol (PFCP)
• Service Function Chaining (SFC) Architecture RFC 7665
• Tunneling and the GTP Tunnel
• PDU Session Types
• Network Slice Selection Services (TS 29.531 stage 3)
  
  • Services
  • API Definitions

5G Infrastructure

• 5G Changes to the Access Layer
• 5G Network Location of elements
• 5G E2E Latency Requirements

Registration and Tracking Areas

• Registration and Tracking Areas
• Registration and Tracking Area Rules
• UE Moves to a new Tracking Area
• Network Slice within a Tracking Area
• Vertical and Horizontal Slices

5G Cloud Based Services

• Service operation naming
• Container-based Design of SBA
• HTTP Reverse Proxy
• HTTP/2
• JSON
• JSON Algorithm

5G Services

• Namf
• UE Context in AMF TS 23-502 Table 5.2.2.2.2-1
• NSSF
• NEF
• NRF
• UDR
• Front End and UDC
• UDM
• AUSF Services
• PCF Services
• SMF Services

5G Stacks

• Transport NAS and SMS over HTTP
• PDU Session
• N2 Interface
• NG Application Protocol (NGAP) TS 38.413
• Session Management Function
• N11 Interface
• Interworking with the EPC (TS 23.501-4.3.1.1)

EU and PDU Session Stats

• 5GMM main states in the UE
• 5GMM main states in the network
• UE PDU Session States
• SMF PDU Session States

New Radio

• New Radio
• Priority Sectors in New Radio
• Beamforming
• Pilot Signals
• SU-MIMO vs MU-MIMO
• Massive mimo
• Pilot Contamination
• Pilot Contamination Solutions
• Densification
• 5G UE Radio Access Layers
• Small Cell
• Remote Radio Head
• Base Band Unit
• Common Public Radio Interface
• Centralized Radio Access Network (C-RAN)
• To CPRI or not to CPRI?
• Functional Split
• AAU, DU, and CU using the Option 2 Functional Split
• Cloud-RAN

Multi-Access Edge Computing

• 8 Network Function Virtualization Components
• Why Two Bridges?
• Simple NFV (Network Function Virtualization) Example
• OVS-based openstack “wiring”
• MEC Reference Architecture in a NFV Environment
• Mobile Edge Computing to Multi-access Edge Computing

Priority Paging and QoS

• Paging Policy Differentiation (PPD)
• Network Triggered Service Request
• QoS Profile
• QoS Flow Marking
• Service Data Flow (SDF) Filter
• 5QI (QoS Flow ID)
• Enhanced Multi-Level Precedence and Pre-emption service (eMLPP)

5G Flow Diagrams

• LTE eNB - 5G gNB dual connectivity (EN-DC)
• LTE eNB - 5G gNB dual connectivity (EN-DC) with EPC flow
• 5G Standalone Access: Registration Procedure

This course will cover 5G IMS access and components. When it comes to IMS architecture, IMS stays as it is. The exception is HSS which now can be co-located or implemented as a part of the UDM. However, the functionality of HSS should remain standalone.