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Full Version: GPRS DRIVING WAP ON THE ROAD TO 3G
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GPRS DRIVING WAP ON THE ROAD TO 3G
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ABSRTACT

Mobile telephony allowed us to talk on the move. The Internet turned raw data into helpful services that people found easy to use. Now, these two technologies are converging to create third generation mobile services. In simple terms, third generation (3G) services combine high-speed mobile access with Internet Protocol (IP)-based services. But this doesn’t just mean fast mobile connection to the world wide web. Rather, it means whole new ways to communicate, access information, conduct business, learn, and be entertained -- liberated from slow, cumbersome equipment and immovable points of access. Mobile computing is being heralded as the new “killer app” for the Internet.
While 3G hasn’t arrived yet 2.5G is here! The technologies at the forefront of 2.5G push are GPRS (General Packet Radio Service), EDGE (Enhanced Data rates for Global Evolution.), WCDMA (Wideband Code Division Multiple Access), and WAP (Wireless Application Protocol).
On the road to 3G, we shall have an insight into the blossoming of 3G from 2G, the technologies involved, & their areas of application.. GRPS and WAP are definite stepping-stones on 3G wireless networks. Separately their improvements are useful upgrades and together they are a significant departure from 2G systems. A gradual transition and user acceptance for 3G could be a reality.

INTRODUCTION

Imagine having a combined camera, video camera, computer, stereo, and radio included in your mobile phone! It's possible with 3G, the future of wireless communications. We will soon have high-speed access to a host of mobile multimedia services.
With access to any service anywhere, anytime, from one terminal, the old boundaries between communication, information, media, and entertainment will disappear. Services will truly converge.
"Mobility" will be offered with many services that we currently regard as "fixed" -- indeed, Ericsson believes that mobility will become the norm for many communication services. We’ll be able to make video calls to the office and surf the Net simultaneously, or play interactive games with friends at home -- wherever we may be. But 3G is not just about applications that require high-speed data rates. It’s about convenience and speed of access.

GPRS (General Packet Radio Service)

It is a packet switched wireless protocol for global system for mobile communications (GSM) that mirrors the Internet model and enables seamless transition towards 3G networks. It transmits IP packets very efficiently allowing profitable services to be marketed at attractive tariffs. Hence it is an excellent platform for wireless data services and applications. It permits burst transmission speeds of up to 115 Kbit/s (theoretically upto even 171 Kbit/s). It is the first transport mode to allow full instant Internet access and is an enabler for a wide range of applications. In this sense it truly may pave the way for UMTS (Universal Mode Telecommunication Service ), a 3G service. As both are packet based technologies, GPRS will be widely installed by operators as a step in the evolution towards the UMTS world.

Working of GPRS :

Since the main goal of GPRS is to provide an intermediate step towards 3G, it needs to be both straightforward so that it can deploy on existing systems and also provide a logical upgrade path to 3G. However it is very important to note that GPRS signaling and data transfer does not in fact travel through GSM networks. The GSM network is only contacted for table look up in Location Registers so that GPRS can find user profiles on the existing network.

WAP (Wireless Application Protocol )

The internet and mobility are main drivers behind our economy. One comprises the world’s biggest library while the other represents the natural way of working the untethered way. WAP the defacto standard brings them together enabling anywhere anytime access to information from any device over any network. It is essentially a browsing protocol, specifically for mobile devices.
The idea behind WAP is to take a client server approach with emphasis on the server doing most of the work.. It is designed to deliver content in optimal format for display on thin client devices such as mobile phones, This is done by using a small micro browser on the mobile phone that requires only minimal resources.
Its main feature is that it does not depend on any one specific underlying transport standards which means that WAP complaint services and applications run over all network types, both current and future.

WAP AND GPRS A GOOD MATCH

WAP has taken off rapidly and looks set to get mobile data revolution. Users are currently accessing mobile portals using circuit switched data links which indicates the high value they place on the content. Thus when the same content over GPRS the user experience will be enhanced. To become practical and useful WAP needs precisely those upgrades that GPRS provides. GPRS is very efficient medium and it consumes far less air resources. Therefore the result is that operator cost for WAP over GPRS services are significantly lower than with WAP over CSD.

CONCLUSION

The world is witnessing the transformation of mobile phone from a voice centric communication device to a tool fro managing business and private life and sharing and storing experiences. In this scenario, WAP over GPRS together bring mobile services one step forward on the road of evolution towards 3G services.
Unfortunately, there are also shortfalls to both technologies that suggest they are merely transition technologies. Although both standards have a lot of industry backing there is also a lot of pressure from competing technologies. A lot depends on whether true 3G capable technologies will emerge sooner rather than later. If 3G is deployed soon, 2.5G technologies may not have sufficient to penetrate the market properly. Whatever happens, GPRS and WAP are useful migratory technologies, which will be, heard a lot more.
Mobile telephony allowed us to speak on the move. On the way to 3G, the report will have insight into the flowering of 3G from 2G, the technologies involved, and their areas of application. GRPS and WAP are definitive steps in 3G wireless networks. Separately their enhancements are useful updates and together they are a significant departure from 2G systems.