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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

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Interconnection Principles

In this section the connection between GSNs and their operating environment, the interfaces used in the GPRSN network and the GSNs, and their contexts are shown in Figure 29, the interface names are part of the ETSI GSM standard for GPRS.

Figure 29 GPRS Logical Architecture
(Adapted from ESTI 301 344 V6.3.2 (1999))

 

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