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Roaming in Mobile Networks

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roaming engineers

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Who Should Attend?

The course is designed for employees of mobile network operators, who need to understand the principles of roaming signalling in mobile networks.

Course Scope

Overview of Network
- Network Organisation.
- 2G/3G End User Main Identities.
- GERAN Nodes.
- UTRAN Nodes.
- Common Databases.
- 2G Circuit-switched Service – Roaming Architecture.
- 3G Circuit-switched Service – Roaming Architecture.
- Packet Switched service – Roaming Architecture.
- Evolved Packet Core – Roaming Architecture.
- IMS Architecture.
- IMS – Interworking.
Overview of Procedures.
- GSM CS Registration.
- GPRS Attach.
- Call Setup (Monolithic MSC).
- Call Setup (Split Architecture).
- PDP Context Activation.
- Voice over LTE (VoLTE) Call Setup.
- Short Message Service (SMS).
- International Roaming.
- Call Forwarding.
IP-based Signalling Protocols.
- Access Point Name (APN).
- GPRS domain - .gprs
- GPRS Roaming eXchange (GRX).
- Session Management.
- Secondary Packet Data Protocol (PDP) Context.
- QoS in PS Service.
- User IP Address Assignment.
- IMS Session With Policy Control.
DIAMETER Base Protocol.
- 3GPP DIAMETER Applications.
- PCRF Application.
- PCRF Application - Roaming.
Session Initiation Protocol (SIP).
- Session Description Protocol Basics.
- SIP Multimedia Session Set-up.
- P-CSCF Discovery.
Signalling System 7 (SS7) Principles and Signalling Connection Control Part (SCCP).
- SS7 Protocol Stack.
- SS7 Key Concepts.
- SCCP Basics and Routing.
- SCCP Functional Structure.
- SCCP Connection-oriented Service.
- SCCP Message Parameters.
- SCCP Address Component.
- Global Title Translation (GTT) - Routing.
- SCCP Connectionless Service.
- SCCP Examples.
SS7 Mobile Services.
- Transaction Capabilities Application Part (TCAP).
- TCAP Structure.
- TCAP Messages and Information Elements (IE’s).
- TCAP Information Element and Tag.
- TCAP Messages.
- Mobile Application Part (MAP).
- MAP – Context and Coding.
- General Mobile Application Part (MAP) Structure.
- MAP Examples: Location Updating.
SS7 Call and Media Gateway Control.
Call and Bearer Control Protocols.
- Integrated Services Digital Network (ISDN) User Part.
- ISUP Messages.
- Session Initiation Protocol (SIP).
- ISUP-SIP Interworking: SIP-I.
- SIP-I Example.
- ISUP over SIP: Session Initiation Protocol for Telephony (SIP-T).
- Bearer Independent Call Control (BICC).
- BICC Serving Node.
- BICC Features and IE’s.
- BICC Call Setup (part).
- H.248/MEGACO Introduction.
- Media Gateway Connection Model.
SS7 Transport.
- Classical and Broadband Transport.
- Layered structure of Message Transfer Part (MTP).
- MTP Layer 3 Functions.
- MTP L3 – Routing Labels.
- MTPL3 – Routing Tables.
- MTPL3 – International Signalling Aspects.
- Signalling Transport over IP (SIGTRAN).
- Basic Terms.
- SIGTRAN – Support for International Signalling.
Charging in Roaming.
- Charging Principles.
- Standard CRD Formats.
- CS CDR – Selected Features.
- PS CDR – Selected Features.
- Transferred Account Procedure: TAP-in and TAP-out.

Course Objectives

The course is designed for employees of mobile network operators, who need to understand the principles of roaming signalling in mobile networks.

Prerequisites

Participants should have a basic understanding of mobile network architecture and its services.

Training Structure

Three-day training divided into logical sessions.

Methodology

Instructor-led training. Exercises and trace analysis.

Trainer understands local market experience.

A lot of useful materials and knowledge.

Training provides useful methods to analyze real protocols.

Experienced trainer. Excellent descriptions.

Everyone gets individual attention from the trainer.

Trainer adapted to the expectations of the audience.

Perfect course.

Training was above expectations!

Course covers all important issues and presents relevant examples.

Trainer is open for comments and discussion.

The training is completely excellent.

Really practical and very fruitful training.

Amazing, more than excellent, audience-oriented trainer.

Highly professional trainer with lots of practical experience. Friendly and open.

Excellent, knowledgeable trainer, open to communication.

I can proudly recommend these courses for others as well.

Trainers have passion to teach & impart knowledge.

Excellent course and instructor.

Deep and detailed topic analysis.

Excellent knowledge from the trainer.

I received a lot of useful information which I use in my work every day.

The training exceeded my expectations.

Very effective training methods.

Very well organized training programmes.

The course exceeded my expectations. Hats off!

The course covers all the impacted areas.

Very clear explanations.

The whole course was very valuable.

Trainer understands local market experience.

Many different people from different operators can share their problems and ideas.

Good class notes and great examples.

I am very impressed with the trainer's knowledge and experience.

Good logical structure of the course and explanation.

Great teacher with deep knowledge and experience.

Excellent methodology of teaching. Simple and easy to understand training.

More than excellent course!

Experienced trainer. Real cases with references to recommendations.

Overwhelming knowledge and expertise. Interactive and enjoyable learning.

The trainer is capable of answering all my questions.

Good direct connection between course material and real problems.

I feel like the trainer is the best professor and mentor one can have.

Professional, high-quality trainer.

Regardless of technology I received theoretical and practical answers.

Excellent exercises!

Trainer was able to answer practical questions.

Unique training covering the most important areas of my work.

Seminar entirely for Telecommunication operators. A lot of issues covered.

The best training ever.

A good approach to a complex problem.

This course will be very useful in my daily work.

A clear picture of GSM switching and signalling.