2g vs 3g

Topics: Mobile phone, GSM, Universal Mobile Telecommunications System Pages: 5 (1812 words) Published: October 8, 2008
3G (Third Generation) Wireless Vs 2G (Second Generation) Wireless

In my research paper, I will be defining the difference between 2G wireless and 3G wireless. It will consist of the history of both 2G and 3G network. 2G networks were built mainly for voice data and slow transmission. Due to rapid changes in user expectation, they do not meet today's wireless needs. Cellular mobile telecommunications networks are being upgraded to use 3G technologies from 1999 to 2010. Japan was the first country to introduce 3G nationally, and in Japan the transition to 3G was largely completed in 2006. Korea then adopted 3G Networks soon after and the transition was made as early as 2004. 2.5G" (and even 2.75G) are technologies such as i-mode data services, camera phones, high-speed circuit-switched data (HSCSD) and General packet radio service (GPRS) that provide some functionality domains like 3G networks, but without the full transition to 3G network. They were built to introduce the possibilities of wireless application technology to the end consumers, and so increase demand for 3G services. When converting a GSM network to a UMTS network, the first new technology is General Packet Radio Service (GPRS). It is the trigger to 3G services. The network connection is always on, so the subscriber is online all the time. From the operator's point of view, it is important that GPRS investments are re-used when going to UMTS. Also capitalizing on GPRS business experience is very important. From GPRS, operators could change the network directly to UMTS, or invest in an EDGE system. One advantage of EDGE over UMTS is that it requires no new licenses. The frequencies are also re-used and no new antennas are needed. Doing my research I found that the Third Generation of Wireless networks are better than the second generation because of the speed and time it takes to download. Keywords

TDMA- Time Division Multiple Access
GSM – Global System for Mobile Communication
GPRS – General Packet Radio Service
EDGE – Enhanced Data GSM Enviroment
CDMA – Code Division Multiple Accsss

In this research paper, I am trying to figure out the difference between the second generation and the third generation of mobile phones standards and technology. My objective is to compare the second generation to the third generation and give some pros and con on the technologies. I want to prove that the third generation standards are far better than the second generation. Wireless communication is the transfer of information over a distance without the use of electrical conductors or wires. The distances involved may be short (a few meters as in television remote control) or very long (thousands or even millions of kilometers for radio communications). When the context is clear the term is often simply shortened to "wireless". Wireless communications is generally considered to be a branch of telecommunications. Cellular phones use radio waves to enable the operator to make phone calls from many locations world-wide. They can be used anywhere that there is a cellular telephone site to house the equipment that is required to transmit and receive the signal that is used to transfer both voice and data to and from these instruments. Second Generation 2G cellular telecoms networks were commercially launched on the GSM standard in Finland by Radiolinja in 1991. Three primary benefits of 2G networks over their predecessors were that phone conversations were digitally encrypted, 2G systems were significantly more efficient on the spectrum allowing for far greater mobile phone penetration levels; and 2G introduced data services for mobile, starting with SMS text messages. 3G first pre-commercial 3G network was launched by NTT DoCoMo in Germany branded FOMA, in May 2001 on a pre-release of W-CDMA-GA3Y technology. The first commercial launch of 3G was also by NTT DoCoMo in Japan on October 1, 2001. The second network to go commercially live was by SK...
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