General Packet Radio Service

General Packet Radio System is also known as GPRS is a third-generation steptoward internet access. GPRS is also known as GSM-IP that is a Global-System Mobile Communications Internet Protocol as it keeps the users of this system online, allows to make voice calls, and access internet on-the-go. Even Time-Division Multiple Access (TDMA) users benefit from this system as it provides packet radio access.

 GPRS also permits the network operators to execute an Internet Protocol (IP) based core architecture for integrated voice and data applications that will continue to be used and expanded for 3G services.

 GPRS supersedes the wired connections, as this system has simplified access to the packet data networks like the internet. The packet radio principle is employed by GPRS to transport user data packets in a structure way between GSM mobile stations and external packet data networks. These packets can be directly routed to the packet switched networks from the GPRS mobile stations.

 In the current versions of GPRS, networks based on the Internet Protocol (IP) like the global internet or private/corporate intranets and X.25 networks are supported.

Who owns GPRS ?

 The GPRS specifications are written by the European Telecommunications Standard Institute (ETSI), the European counterpart of the American National Standard Institute (ANSI).

 Key Features

 Following three key features describe wireless packet data:

 ·   The always online feature – Removes the dial-up process, making applications only oneclick away.

 ·   An upgrade to existing systems – Operators do not have to replace their equipment;rather, GPRS is added on top of the existing infrastructure.

 ·   An integral part of future 3G systems – GPRS is the packet data core network for 3Gsystems EDGE and WCDMA.

Goals of GPRS

 GPRS is the first step toward an end-to-end wireless infrastructure and has the following goals:

 ·        Open architecture

 ·        Consistent IP services

 ·        Same infrastructure for different air interfaces

 ·        Integrated telephony and Internet infrastructure

 ·        Leverage industry investment in IP

 ·        Service innovation independent of infrastructure

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