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Introduction

Historical Background

GSM

EDGE

  The Evolution of the GSM Network

High Speed Circuit Switched Data (HSCSD)

General Packet Radio Service (GPRS)

System Overview

Traffic Cases

- IMSI attach

- GPRS Attach

 -Combined GPRS/IMSI Attach

- PDP Context Activation and Deactivation

GPRS Air Interface

Logical Channels

PDCH Allocation

Dedicated PDCH

On-demand PDCH

Master PDCH

Cell Selection and Reselection

GPRS Support Node (GSN)

Interconnection Principles

GPRS IP Connectivity

The users IP communication

EDGE Summary and Key Points

WCDMA

UMTS

The Future

Final Thoughts

Blueadmiral.com

GPRS Support Node (GSN)

The GSN is a general purpose, high-performance packet switching platform, the GSN combines features usually more associated with data communications (features such as compactness and high functionality) with features from telecommunications such as robustness and scalability. The GSN is designed for non-stop operation, the platform incorporates 1+n redundant hardware, and also the software is of a modular design enabling individual modules to be upgraded with out causing any interference to the traffic.

 

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