GPRS Development

2.75 Generation M

2.75 G Generation generation known as EDGE. EDGE was introduced by AT & T in the United States in 2003. Actually technically meets EDGE 3G standard established by ITU. This technology can transmit data faster than 2.5G.

Generation 3G

3G technology is divided into GSM and CDMA. 3G technology is often referred to as mobile broadband for their superiority as a modem for the internet that can be taken anywhere. The development of 3G technology commercially began in October, 2001, when NTTDoCoMo from Japan with W-CDMA technology to sell their products for the first time a limited basis. Then followed by SK Telecom, South Korea in 2002 with 1xEV-DO technology, followed by South Korea's KTF with EV-DO technology. The success of 3 G services in both countries due to government support factors. The Japanese government does not charge in advance (upfront fee) for the use of spectrum licenses for 3G operators in Japan (there are three operators: NTT DoCoMo, KDDI and Vodafone). While the South Korean government, even if this charge in advance, providing incentives and assistance in the development of broadband wireless (South Korea is a country that uses the Cisco Gigabit Switch Router in the world) as part of infrastructure development strategy.

In Europe, spearheaded by British Telecom and Telenor with W-CDMA technology in December 2001. In the United States 3G network was pioneered by Monet Mobile Networks with CDMA20001xEV-DO technology, followed by Verizon Wireless in 2003. Australia's commercial 3G network was first introduced by Hutchinson Telecommunications under the name Three in March 2003. In December 2007 the 3G network has been operated in 40 countries and 154 HSDPA networks have been operating in 71 countries, and has 200 million customers are connected through 3G networks.

The development of 3G technology requires a global spectrum of settings, through the provision of bands (band) is more extensive. The presence of 3G technology as a result of second-generation technology development, namely the result of evolutionary development, which still use the 2G network is expanded and the revolutionary developments that require networks and frequency allocation completely new. Evolutionarily, IMT-2000 have applied two kinds of evolution to 3G, ie from the 2G CDMA standard IS-95 (cdmaOne) to the IMT-SC (CDMA2000) and the 2G TDMA standars (GSM/IS-136) to the IMT-SC (EDGE ). In revolutionary, IMT-2000 to build a new spectrum allocation related demands increasingly wide channel.

One Will Understand 3G

There are some misconceptions about 3G in the general population:

1. 3G services can not be without any coverage of 3G services from operators. Just buy a 3G handset, does not mean that 3G services can be enjoyed. The handset can automatically switch to 3G networks if, the customer does not receive 3G coverage. So that if someone is moving and using the video call service, and then forced to switch to 2G networks, the video call service will end.
2. 3G services are on the frequency 1900 MHz. ITU-T's 3G services defined for GSM 1900 MHz frequency with a bandwidth of 60 MHz. However, in general, based on CDMA2000 technology uses spectrum in the 800 Mhz frequency, or commonly known as the spectrum of PCS (Personal Communication System).