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GPRS GPRS PowerPoint PPT Presentation


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GPRS GPRS. What’s in this slide? Introduction to GPRS. History GPRS Service. GPRS Speeds. GPRS Mobile Devices. Services of GPRS . GPRS in practice. Introduction to GPRS. GPRS is a service of GSM mobiles.

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GPRS GPRS

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GPRSGPRS

  • What’s in this slide?

  • Introduction to GPRS.

  • History

  • GPRS Service.

  • GPRS Speeds.

  • GPRS Mobile Devices.

  • Services of GPRS.

  • GPRS in practice.


Introduction to GPRS

  • GPRS is a service of GSM mobiles.

  • GPRS-GENERAL PACKET RADIO SERVICE provides direct link to the internet from GSM phones.

  • Basically it is used for data trancfer.

  • GPRS is described as”2.5G”.

  • GPRS is packet switched.


HISTORY


GPRS Service

  • In GPRS data is billed per kilobytes of information transceived.

  • Through GPRS only those files can be accessed which are written in XHTML.

  • The main benefit for users of GPRS is the ‘always on’ characteristic.


GPRS Speed

  • The theoretical limit for packet switched data is approx 170 kbit/sec.

  • Realistic bit rate is 30-70 kbit/sec.


GPRS Speed (cont.)

download upload GPRS (4+1) 57.6 kbit/s 14.4 kbit/s (class 8& 10) GPRS (3+2) 43.2 kbit/s 28.8 kbit/s (class 10) CSD 9.6 kbit/s 9.6 kbit/s HSCSD 28.8 kbit/s 14.4 kbit/s (2+1) HSCSD 43.2 kbit/s 14.4 kbit/s (3+1)

  • A change to the radio part of GPRS called EDGE allows higher bit rates of between 20 and 200 kbit/s. The maximum data rates are achieved only by allocation of more than one time slot in the TDMA frame.


GPRS MOBILEDEVICES

To use GPRS the service is 'dialed' in a similar manner to a standard data call at which point the user is 'attached' and an IP address is allocated.

  • The key use for GPRS is to send and receive data to a computer application such as Email, web browsing or even telemetry.


GPRS MOBILE DEVICES(cont…)

  • The three standard methods to connect your computer to GPRS mobile phone are:

    1… Infrared

    2… Data-cable

    3… Bluetooth


Services of GPRS

  • GPRS provides services like

  • Point-to-point

  • Point-to-multipoint

  • SMS

  • Anonymous services.


GPRSin Practice

  • Telephone operators prices GPRS relatively cheaply compared to csd.

  • Typical rates vary wildly, ranging from Euro 1 to Euro 20 per megabyte .

  • In the US T-mobile offers US$20 per month unlimited GPRS.

  • Orange in UK offers 1 gigabyte package for 88 per month.


GPRSSECURITY

  • The radio interface is considered to be relatively secure being controlled by the GSM network's security - (SIM card + HLR). Security issues arise when data needs to leave the GPRS network to be delivered to either the Internet or a company LAN.

  • Internet connectivity is the cheapest and most common - and here you can take charge of security by encrypting sensitive data.


FEATURES OF GPRS

  • Key User Features of GPRS

  • Key Network Features of GPRS


KEY USER FEATURES OF GPRS

  • Speed…

  • Immediacy…

  • New and Better Applications…

  • Service Access…


KEY NETWORK FEATURES OF GPRS

  • Packet Switching…

  • Spectrum Efficiency…

  • Internet Aware…

  • Supports TDMA and GSM…


APPLICATIONS OF GPRS

  • E-Commerce

  • Banking

  • Financial Trading

  • Unified Messaging


GENERAL APPLICATIONS OF GPRS

  • Communications—E-mail and fax;

  • Intranet/Internet access

  • Value-added services (VAS)—Information services; games

  • E-commerce—Retail; ticket purchasing; banking; financial trading

  • Location-based applications—Navigation; traffic conditions; airline/rail schedules; location finder

  • Vertical applications—Freight delivery; fleet management; sales-force automation

  • Advertising


ADVANTAGES OF GPRS

  • GPRS will enable a variety of new and unique services to the mobile wireless subscriber. These mobile applications contain several unique characteristics that enhance the value to the customers.

  • First among them is mobility—the ability to maintain constant voice and data communications while on the move.

  • Second is immediacy, which allows subscribers to obtain connectivity when needed, regardless of location and without a lengthy login session.

  • Finally, localization allows subscribers to obtain information relevant to their current location


LIMITATIONS OF GPRS

  • Limited Cell Capacity for All Users

  • Speeds Much Lower in Reality

  • Support of GPRS Mobile Terminate by Terminals is Not Ensured

  • Suboptimal Modulation

  • Transit Delays

  • No Store and Forward


  • CONCLUSION:-

    From this we conclude that the future of GPRS is very bright because it is flexible to new functions such as more capacity, more users ,new radio networks.


THANK YOU!!!


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