Roaming Technical Architecture and Testing
Course Details
This course introduces key aspects of 2G/3G, 4G and 5G roaming, with particular focus on the implications of IREG testing on these technologies. In so doing, the course covers an initial introduction into the fundamentals of roaming, before then defining the concepts, requirements and implications of IREG testing. Following this, the major cellular technologies are each covered in turn, focusing on the key architectural considerations, as well as roaming procedures and their associated IREG test scripts. The course will conclude with a round up of additional considerations for roaming implementation.
Dhiraj Wazir - CEO ROCCO
Philip Nugent - Senior Trainer Mpirical
Dhiraj is the CEO of ROCCO Strategy and one of the few subject matter experts in the Telecommunications field of Roaming & Interconnect. Dhiraj has spent over 18 years working on Roaming Wholesale, Product Management and Retail Propositions. Dhiraj has had a broad remit, building his telecom career with the Hutchison group, T-Mobile, EE and BT before joining ROCCO. Dhiraj is based in London, UK.
Phil heads up Mpirical’s technical development, advising on the latest technologies and assisting the Mpirical team with his wealth of both historical and current knowledge. Phil’s specialist area is the mobile radio and RAN space, originally focussing on 2G and 3G technologies but more recently, heavily embedded with 5G New Radio for both Mpirical and customer specific projects.
£950
Individual Course
Module 1
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Introduction to Roaming
What is Roaming?
History of GSM
How Does Roaming Work?
Billing of Roaming
Roaming Launch
Considerations for Roaming Launch
Roaming Agreements
Introduction to RAEX
Introduction to IR.21
Inter-Operator Tariffs (IOT)
Roaming Fraud
Steering of Roaming “SoR”
Roaming Quality
Module 2
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Understanding IREG and TADIG
Introduction to IREG
Network (IREG) Testing
Introduction to TADIG
Module 3
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4G Roaming Architecture
Introduction to 4G - Why LTE?
What is LTE?
4G Architecture – Part 1
- Introduction
- High Level 4G Architecture
- EPS Bearers
- LTE Identification
- LTE RAN
4G Architecture – Part 2
- Introduction
- EPC Components
- Control and User Plane Separation
4G Roaming Architecture
- Introduction
- 4G Roaming – Home Routed
- 4G Roaming – Local Breakout
4G Roaming Interfaces
- Introduction
- Access and Session Roaming Interfaces
- Roaming with OCS and Local Breakout
4G Roaming Protocols - Diameter
- Introduction
- Diameter Agents
- Diameter Routing
- Diameter Protocol Stack
- Diameter - DRAs and DEAs Setup
- Diameter Messages on S6a/S6d and S9
Roaming Protocols – GTP
- Introduction
- GTPv2-C
- GTPv1-U
4G Roaming Security
- Introduction
- Roaming Security
- DESS (Diameter End-to-End Signalling Security)
- GTP and General Security
IoT Roaming Considerations
- Introduction
- IoT Types
Module 4
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4G Roaming Procedures
LTE and EPC Roaming Testing
- Introduction
- Key LTE and EPC Roaming Tests
- IREG Pre-Testing LTE Data Exchange
Introduction to IR.38 Spreadsheet
4G Roaming Data Transfer
- Introduction
- Roaming Attach and PDN Procedure
- Combined Attach
Bearer and QoS
- Introduction
- Default and Dedicated EPS Bearers
- QoS Class Identifier
IREG - LTE Only Services
- Introduction
- IREG - LTE Speed Test
- IREG - LTE Cancel Location
- IREG - Operator Determined Barring
IREG - CSFB when Roaming
- Introduction
- IREG - CSFB Pre-Testing Data Exchange
- IREG - CSFB MO Voice Call
- IREG - CSFB MT Voice Call
IREG - CSFB SMS over SGs
- Introduction
- IREG - CSFB SMS Pre-Testing
- IREG - CSFB SMS over SGs
IREG - LTE+2G/3G Co-existence Testing
- Introduction
- 2G/3G PDP Context Roaming Options
- IREG - 2G/3G PDP Context Roaming using LTE HPMN Precondition
- IREG - 2G/3G PDP Context Roaming Procedure
Detailing IR.38 Test Spreadsheet
Module 5
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VoLTE Roaming
Why VoLTE Roaming?
VoLTE Roaming History
VoLTE Launch Challenges
Commercial Impact
Module 6
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VoLTE / VoNR Roaming Procedures
Roaming with IMS
- Introduction
- IMS Basics
- High Level Architecture
- VoLTE Network Types and GSMA Test Suite
- Main VoLTE Tests
Introduction to IR.25 Spreadsheet
VoLTE/VoNR Registration
- Introduction
- VoLTE Registration
- Third Party Registration
- Registration Event Subscription
VoLTE Mobile Originated/Terminated Call
- Introduction
- VoLTE Call Signalling
- Roaming Media Flow
- Call Termination
VoLTE Supplementary Services
- Introduction
- TAS Responsibilities
- Example TAS Supplementary Services
IMS Emergency Calls
- Introduction
- Architecture for IMS Emergency Calls
- Local Emergency Number List
- IMS Emergency Services Call Flow
Lawful Interception in IMS
- Introduction
- High Level LI Architecture
- Lawful Interception IMS - IRI-POI
- Lawful Interception IMS - CC-POI
Wi-Fi Calling when Roaming
- Introduction
- VoLTE and Wi-Fi Calling
IREG Testing in VPLMN - Part 1
- Introduction
- REG Pre-Testing VoLTE Data Exchange
- IREG - Roaming Registration
- IREG - IMS Calls
IREG Testing in VPLMN - Part 2
- Introduction
- IREG - SMS over IP (IMS)
- IREG - Emergency Call
- IREG - LI
- IREG - Barring
- IREG - CSFB and SMS over NAS
Detailing IR.25 Test Spreadsheet
Module 7
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5G Roaming
What & Why 5G?
5G Roaming Challenges
Billing in 5G Roaming
Slicing in 5G
Security in 5G Roaming
Module 8
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5G Roaming Architecture
5G Roaming Architecture
- Introduction
- 5G Architecture
- Home Routed Roaming
- Local Breakout Roaming
5G Roaming Interfaces
- Introduction
- 5G Roaming Reference Points
- 5G Charging Roaming Architecture
5G Roaming Protocols
- Introduction
- SBI Protocol Stack
- HTTP/2
5G Roaming Security
- Introduction
- Protecting Service Based Interfaces – HTTPS
- Security Edge Protection Proxy
- PRINS and IPUPS
Steering of Roaming
- Introduction
- SoR Requirements
- Operator Controlled PLMN Selector
IoT Considerations
- Introduction
- IoT and 5G
- Network Slicing
Module 9
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5G Roaming Procedures
5G Registration when Roaming
- Introduction
- 5G Roaming Registration Procedure
5G Home Routed PDU Session
- Introduction
- 5G Home Routed Architecture
- 5G Home Routed PDU Session Procedure
5G LBO PDU Session
- Introduction
- 5G LBO Architecture
- 5G LBO PDU Session Procedure
UE Route Selection Policy
- Introduction
- UE Related Policy Control
- User Equipment Route Selection Policy
5G QoS for Roaming
- Introduction
- 5G QoS Overview
- 5G QoS Identifier
- Allocation and Retention Priority
- Roaming QoS Examples
SMS and 5G Roaming
- Introduction
- SMS over 5G Options
- SMS over 5G NAS - Registration
- Mobile Originated 5G NAS SMS
- Mobile Terminated 5G NAS SMS
Module 10
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2G/3G Roaming Architecture
2G/3G Roaming Architecture
- Introduction
- Circuit Switched Roaming Architecture
- Packet Switched Roaming Architecture
2G/3G Roaming Interfaces
- Introduction
- 2G/3G CS Roaming Interfaces
- 2G/3G PS Roaming Interfaces
2G/3G Roaming Protocols
- Introduction
- Mobile Application Part
- ISDN User Part
- BICC and SIP Migration
- 2G / 3G Voice
- GPRS Protocols
2G/3G Roaming Security
- Introduction
- 2G / 3G Roaming Networks
- 2G / 3G Interconnection Security
- Securing SS7 for Roaming
2G IoT Considerations
- Introduction
- 2G IoT Roaming
Module 11
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2G/3G Roaming Procedures
Introduction to IR.24 Spreadsheet
2G/3G Roaming CS Location Update
- Introduction
- Location Update Roaming Procedure
2G/3G Roaming Mobile Originated Call
- Introduction
- 2G/3G Roaming Mobile Originated Call Setup
Mobile Terminated Roaming Voice Call
- Introduction
- 2G/3G Roaming Mobile Terminated Call Setup
SMS Roaming
- Introduction
- Roaming Mobile Originated Text Messaging
- Roaming Mobile Terminated Text Messaging
2G/3G CS IREG Testing - Part 1
- Introduction
- Summary of 2G/3G CS Tests
- Location Update Tests
- Operator Control Tests
2G/3G CS IREG Testing - Part 2
- Introduction
- Call Testing - MS1 Calls MS2, Both Roamed In VPMN
- Call Testing - Other PSTN to MS1 Scenarios
- Call Testing - ODB of VPMN Premium Number
- Supplementary Service Test Cases
- SMS Test Cases
Detailing IR.24 Test Spreadsheet
Introduction to IR.35 Spreadsheet
2G/3G Attach (Roaming)
- Introduction
- 2G/3G Packet Switched Attach
2G/3G Roaming PDP Context
- Introduction
- Roaming PDP Context Activation
2G/3G PS IREG Testing
- Introduction
- GPRS-Attach of MS1 in VPMN (GPRS Attach only)
- Intranet-/ISP-Access of MS1 in VPMN using HPMN GGSN
- WAP Access
- MMS (Multimedia Messaging Service)
- SMS Delivery via GPRS
- Location Cancellation for GPRS Subscription held in VPMN
- Operator Determined Barring for PDP Context and SMS
Detailing IR.35 Test Spreadsheet
£950
Individual Course
Also available as Live training, online or onsite
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£950
Individual Course
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