1. SEMINAR ON “ GPRS “ GPRS- General Packet Radio Service provides a direct link into the Internet from a GSM phone Downloaded From Projectsbhangar.com

2. INTRODUCTION TO GPRS GPRS will undoubtedly speed up a handset's Internet connection - but it remains to be seen exactly how much speed can be achieved out of the system. GPRS works by aggregating a number of separate data channels. This is possible because data is being broken down into small 'packets' which are re-assembled by the receiving handset back into their original format. Downloaded From Projectsbhangar.com

3. INTRODUCTION (cont…) GPRS stands for General Packet Radio Service, and is a relatively low cost technology that offers packet-based radio service and allows data or information to be sent and received across mobile telephone networks. GPRS provides a permanent connection where information can be sent or received immediately as the need arises, subject to radio coverage. Downloaded From Projectsbhangar.com

4. GPRS ARCHITECTURE GPRS Subscriber Terminals GPRS BSS GPRS Networks Node GPRS Mobility Management Downloaded From Projectsbhangar.com

5. GPRS SUBSCIBER TERMINALS New terminals are required because existing GSM phones do not handle the enhanced air interface, nor do they have the ability to packetize traffic directly. A variety of terminals will exist, as described in a previous section, including a high-speed version of current phones to support high- speed data access. BACK Downloaded From Projectsbhangar.com

6. GPRS BSS Each BSC will require the installation of one or more PCUs and a software upgrade. The PCU provides a physical and logical data interface out of the base station system (BSS) for packet data traffic. The BTS may also require a software upgrade, but typically will not require hardware enhancement. BACK Downloaded From Projectsbhangar.com

7. GPRS NETWORKS NODE In the core network, the existing MSCs are based upon circuit-switched central-office technology, and they cannot handle packet traffic. Thus two new components, called GPRS Support Nodes, are added: Serving GPRS Support Node (SGSN) Gateway GPRS Support Node (GGSN) BACK Downloaded From Projectsbhangar.com

8. GPRS MOBILITY MANAGEMENT Mobility management within GPRS builds on the mechanisms used in GSM networks. As a MS moves from one area to another, mobility management functions are used to track its location within each mobile network. Downloaded From Projectsbhangar.com

9. WORKING OF GPRS Each voice circuit in GSM transmits the speech on a secure 14kbps digital radio link between the mobile phone and a nearby GSM transceiver station. The GPRS service joins together multiple speech channels to provide higher bandwidth data connections for GPRS data users. The radio bandwidth remains the same, it is just shared between the voice users and the data users. Downloaded From Projectsbhangar.com

10. WORKING-RADIO INTERFACE Each GSM radio transceiver uses Time Division Multiplexing to deliver eight voice circuits on one radio channel. Maximum numbers are limited by many factors including - operators radio license, interference with other nearby GSM cells, cost of equipment, capacity of radio site infrastructure etc. Each 14kbps channel may be shared by multiple 'connected' GPRS users. Downloaded From Projectsbhangar.com

11. RADIO INTERFACE (cont…) As a user's data requirements grow, they will use more of the available capacity within that timeslot Downloaded From Projectsbhangar.com

12. GPRS MOBILE DEVICES The key use for GPRS is to send and receive data to a computer application such as Email, web browsing or even telemetry. 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. Downloaded From Projectsbhangar.com

13. GPRS MOBILE DEVICES(cont…) The three standard methods to connect your computer to GPRS mobile phone are: 1… Infrared 2… Data-cable 3… Bluetooth Downloaded From Projectsbhangar.com

14. GPRS Roaming In the short term don't expect to be able to roam to many countries with GPRS, many networks are still negotiating to set up roaming agreements. Technically there are two type of GPRS Roaming 1… Home Network Roaming 2… Local Network Roaming Downloaded From Projectsbhangar.com

15. GPRS SECURITY 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. Downloaded From Projectsbhangar.com

16. FEATURES OF GPRS Key User Features of GPRS Key Network Features of GPRS Downloaded From Projectsbhangar.com

17. KEY USER FEATURES OF GPRS Speed… Immediacy… New and Better Applications… Service Access… Downloaded From Projectsbhangar.com

18. KEY NETWORK FEATURES OF GPRS Packet Switching… Spectrum Efficiency… Internet Aware… Supports TDMA and GSM… Downloaded From Projectsbhangar.com

19. APPLICATIONS OF GPRS E-Commerce Banking Financial Trading Unified Messaging Downloaded From Projectsbhangar.com

20. 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 Downloaded From Projectsbhangar.com

21. 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 Downloaded From Projectsbhangar.com

22. 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 Downloaded From Projectsbhangar.com

23. CONCLUSION From this we can conclude that E- Commerce,Banking,Financial Trading, Unified Messaging are the fields where GPRS is very much advantageous. But the areas like limited cell capacity,lower speeds,and other certain limitations are the areas where it needs to improve. Downloaded From Projectsbhangar.com

24. CONCLUSION (cont…)  GPRS is classified as a 2.5G (or 2G Plus) technology because it builds upon existing network infrastructure  In order to compete with 3G, EDGE must offer links running at 384 Kbit/s and originally this equated to running GPRS three times faster. However, because GPRS has proved much slower than expected, it now needs to be seven times faster. Downloaded From Projectsbhangar.com

25. QUERIES, IF ANY ??? Downloaded From Projectsbhangar.com

26. THANK YOU !!! Downloaded From Projectsbhangar.com

27. SEMINAR ON GPRS Downloaded From Projectsbhangar.com