5G Essentials and Mobile Evolution

Description

Overview:

5G is the next-generation of mobile networks beyond the 4G LTE mobile networks existing today. The vision of 5G is becoming clearer and most experts say 5G will feature network speeds that are blazingly fast at 20 Gbps or higher and have low latency at mere milliseconds. The entire 5G approach takes advantage of containers, virtualization, SDN and NFV.

Students will cover the design motivation and underlying technology of 5G service-based architecture as well as new vocabulary terms. We will cover enough about 5G radio to understand the differences between 4G and 5G, and finally, take a look at the 5G core in action. Sample message flows of typical 5G processes are covered message by message. The goal is to clearly see how 5G accomplishes its goals by observing how it actually works.

Prerequisite(s):

• VoLTE and the IMS
• Software Defined Networking & Network Function Virtualization

Audience:

Anyone who needs a high-level overview of complete 5G rollout, Management, Planners and Project Managers

Outline:

5G Introduction

• 5G vs 4G features
• Mobility essentials:
  • Visiting
  • Home
  • Roaming
  • Control Plane
  • User Plane
• 4G EN-DC
• 5G Stand Alone
• 5G Options
• LTE vs New Radio
• How to obtain additional 3GPP information about 5G.

New Radio

• Understanding why we need these three very different spectrums
  • sub 1 gig
  • mid band
  • millimeter waves
• Priority Sectors in New Radio
• Beamforming
• Pilot Signals
• SU-MIMO vs MU-MIMO
• Massive mimo
• Densification

5G EN-DC Core Architecture

• RAN architecture
• Evolved Packet Core in a 5G network
• Authentication center (AUC)
• Equipment identity register (EIR)
• Service Gateway (SGW)
• Packet Data Network Gateway (PGW)
• Mobility Management Entity (MME)
• 5G EN-DC Topology LAB Exercises
• Control Plane message pathways
• User Plane message pathways

IMS Integration

• The role of the IMS
• Protocols
  • SIP, Diameter, DNS (enum), RTP
• IMS core Essentials
  • P-CSCF
  • I-CSCF
  • S-CSCF
  • SCC
  • TAS
  • HSS
  • MRFC/MFRP
  • PCRF
• IMS Call control and media paths
• 5G IMS integration
• IMS Exercise
  • Call control path
  • RTP packet path
• Lab exercise
  • IMS call flow in a 5G network

5G Stand Alone (SA)

• 5G Services
  • AMF and SMF control functions
  • NSSF, AMF selection and slice access.
  • NEF, AF and service exposure
  • NRF and service discovery
  • Database and DB frontend services
    • UDR
    • UDM
    • AUSF
    • PCF
• gNodeB, NG-AP, and the
• Comparing SA vs NSA (Stand Alone vs Non-Stand Alone)
• EN-DC and X2-C messaging
• IMS integration
• Slicing

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)
• 5G Cloud Based Services
  • Service operation naming
  • Container-based Design of SBA (1 of 2)
  • Container-based Design of SBA (2 of 2)
  • HTTP Reverse Proxy
  • HTTP/2
  • JSON

5G Mobility Management

• Tracking Area (TA)
• Tracking Area List (TAL)
• Registration Area
• Timers
• Paging
• Session and Service Continuity (SSC) mode 1 and 2
• Session and Service Continuity (SSC) mode 3
• 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)
• Lab Exercises
  • Mobility withing a Registration Area (Tracking Area List)
  • 5G paging Call flow
  • 5G Registration

5G Infrastructure

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

The 5G Slice

• Understanding the motivation for Network Slicing
• The similarities that would make you think “VPN = Network Slice”
• The differences between VPN and Network slicing
• The slice buyer expectations and deliverables
• The slice provider Template (What to deliver)
• Why Slicing can deliver on an SLA contract
• Expectations on roaming to another service provider.
• Definitions
  • Network Slice Instance
  • Slice Service Type
  • Network Slice Subnets (RAN, Core, Transport)
  • Network Slice Template
  • Network Slice Assistance Information
  • Information Object Class (TS-28541)
  • Network Functions Virtualization
  • Network Resource Model
  • Solution Set
  • Vertical and Horizontal Slices
• Core Slicing
  • The Slice selection process
  • Roaming with local breakout
  • Roaming with remote breakout
  • N4 Interface – Packet Forwarding Control Plane Protocol (PFCP)
  • Service Function Chaining (SFC) Architecture RFC 7665
  • Tunneling and the GTP Tunnel
  • PDU Session Types
• RAN slicing
  • The 5G RAN overview
    • QCI, Scheduling, Radio Layer
  • Midhaul functional split
    • 5G UE Radio Access Layers
    • Limitations of CPRI
    • Functional Split
    • AAU, DU, and CU using the Option 2 Functional Split
    • Cloud-RAN
  • O-RAN architecture
  • OpenRAN
  • vRAN

Using Unlicensed Spectrum

• Interoperability with Wi-Fi
• LTE-U
• LAA
  • Listen Before Talk (LBT)
• MulteFire
• New Radio Unlicensed (NR-U)
  • 5G Radio Frame Format
• SAS New Radio Unlicensed (NR-U)
• CBRS Summary CBRS Architecture Synchronous NR-U
• Requirements for Commercial Operation in 3550-3700 MHz CBRS Band Locating

US Unlicensed Spectrum in the Mid-band

• 3100-3450 & 3450-3550
• CBRS Band – Three Tier Approach
• C-Band
• U Nil Bands (5 GHz)
• UNI Bands (6 GHz)
• 7-8 GHz

Multi-Operator Core Networks (MOCN)

• Introduction to MOCN
• Active Carrier Sharing MOCN Call Flow

Multi-Access Edge Computing

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

EU and PDU Session State

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

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, describing all the components you see below.
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.