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Voice over LTE

LTE and IMS in Mobile Communications

With the introduction of LTE, the complete payload data of the customer is transferred over IP. To continue making phone calls on the basis of a provider network, the setup of an IP multi-media subsystem is required. Even though LTE and IMS are initially decoupled from each other on different layers of the OSI model, due to their functions, there are necessary links, nevertheless. The Policy and Charging Control (PCC) is the infrastructure which interconnects the two architectures. It ensures that services are billed individually and that Quality-of-Service features can be defined for each phone call. The course at hand explains the basic setup of a mobile communications network with integrated IMS and PCC. One focus is on the interconnection of the networks and the processes between the networks, which are required to do this.

Course Contents

• State of the Art of Long Term Evolution (LTE)
• IP Multimedia Subsystem (IMS) in Mobile Communications
• Policy and Charging Control Architecture (PCC)
• Diameter (S9, S6a, Gx, Gy, Gz)
• Processes during Connection Setup
• A Phone Call between Two Mobile Communications Networks
• LTE/IMS Roaming
• Home Routed
• Local Breakout
• Diameter Routing Agent
• Diameter Edge
• Quality of Service

 Each participant will receive the comprehensive course documentation of the ExperTeach Networking series in German language. Optionally, we provide the printed version or an ExperTeach e-book.

 Detailed table of contents

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Target Group

The course addresses network designers, technicians, consultants, and product managers who deal with the introduction, operation, and coupling of LTE networks.

Knowledge Prerequisites

A basic know-how of mobile communications networks and IP protocols, as well as Voice over IP is desirable.