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Introduction

Historical Background

GSM

EDGE

WCDMA

UMTS

  UMTS Introduction

Horizontal Layering

General Principles
- User Plane
- Control Plane
- Application Layer

Core Network Standards and Interfaces

Key Benefits of the Layered Architecture

Core UMTS Network Elements

Routers/Switches

Traffic Handling in a Layered Architecture

Traffic Cases
- Mobile Originated call
- Mobile Terminated
- PDP Context
- Packet Forwarding

UMTS Summary

The Future

Final Thoughts

Blueadmiral.com

Application Layer

The application layer is a simplified abstraction of the layer where most of the enduser applications reside. To a large extent these applications are implemented partly in the terminals and partly in the specific application servers, which reside within the network*. Applications exist in a broad variety, from the simple end-to end client server solutions to complex applications involving multiple interactive end-systems, networks, media communication models etc.

* Some services handled by the network elements in the control plane, particularly the more traditional supplementary services for circuit mode communication.

 

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