GPRS_GENERAL_PACKET_RADIO_SYSTEM

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GPRS

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General Packet Radio System (GPRS): 

General Packet Radio System (GPRS)

General Overview: 

General Overview GPRS stands for G eneral P acket R adio S ystem. GPRS provides packet radio access for mobile GSM and TDMA users. The GPRS specifications are written by the European Telecommunications Standard Institute (ETSI), the European counterpart of the American National Standard Institute (ANSI). GPRS is a Mobile Data Service available to users of GSM and IS-136 mobile phones. GPRS is packet-switched and multiple users share the same transmission channel for transmitting the data.

Continue….: 

Continue…. GPRS is important as a migration step toward third-generation (3G) networks and allows network operators to implement an IP-based core architecture . GPRS is a new bearer service for GSM that greatly improves and simplifies wireless access to packet data networks. Networks based on the Internet Protocol and X.25 networks are also supported in the current versions of GPRS.

Key Features… : 

Key Features… The always online feature: Removes the dial-up process, making applications only one click 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 3G systems EDGE and WCDMA.

Goals of GPRS: : 

Goals of GPRS: 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

Architecture of GPRS…: 

Architecture of GPRS…

GPRS protocol stack: 

GPRS protocol stack

Applications…: 

Applications… Communications: E-mail, fax, unified messaging and intranet/Internet access etc. Value-added services: Information services and games etc. E-commerce: Retail, ticket purchasing, banking and financial trading etc. Location-based applications: Navigation, traffic conditions, airline/rail schedules and location finder etc. Vertical applications: Freight delivery, fleet management and sales-force automation. Advertising: Advertising may be location sensitive. For example, a user entering a mall can receive advertisements specific to the stores in that mall.

What is Next?: 

What is Next? Enhanced Data rate for GSM Evolution (EDGE): using a new modulation scheme to provide up to three times higher throughput. Universal Mobile Telecommunication System (UMTS): a new wireless technology using new infrastructure deployment.

References…: 

References… GSM phase 2+ general packet radio service GPRS: Architecture, protocol and Air interface: An ieee paper by: Christian bettstetter, Hans-Jorgvogel, and Jorg Eberspacher Technische Universitat Monchen(TUM). http://www.tutorial.com/ Book: Data communications and networking By Behrouz A Forouzan

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