GPRS Technology

2 days

This section follows the evolution from GSM to GPRS, stressing the differences between packet switched and circuit switched data modes. An overview of the network architecture is included with its connections to GSM and other data networks.

GPRS Services
In this section we cover the various services available as a result of the introduction of GPRS systems. These services include point-to-point services, point to multi-point services, GPRS supplementary services, GSM short message services (SMS), together with a description of Anonymous access.

Short Message Service (SMS)
Topics covered in this section are the SMS architecture and functionality together with the features of SMS, addressing of messages, Mobile Originated (MO) and Mobile Terminated (MT) short messages, delivery confirmation and interworking.

GPRS Network Architecture
In this section we describe the functions of the GPRS network elements - including the Gateway GPRS Support Node (GGSN), the Serving GPRS Support Node (SGSN), and the Base Station Sub-System (BSS). Also covered are the GPRS backbones and the functionality of the HLR and the Point to Multi-point service centre (PTM-SC).

Mobility Management (MM)
This section describes the GPRS MM states, routing areas, the interaction between SGSN and MSCs , GPRS attach, Paging, Routing Area and cell updates.

GPRS Security
Here we describe the GPRS ‘over the air’ security aspects, screening of data, Point to Multi-point security and GPRS Backbone security.

The Air Interface
Starts with a brief review of the GSM Air Interface on which the GPRS Interface is based. Then introduces the Logical/Physical channels, covering their relationship to each other and the assignment of channels.

Packet Data Transfer
This section covers the transmission plane protocols, such as TCP/IP, Frame Relay, and the less generic GPRS protocols - including the GPRS Tunnelling Protocol, Sub-network Dependent Convergence Protocol, Logical Link Control, Radio Link Control and Media Access Control.