Rabu, 25 Maret 2009

3G Technology

At this time there are two branches of development of 3G, that is from the GSM (Global System for Mobile Communication) dipelopori by the 3G Partnership Project and CDMA (Code Division Multiple Access) dipelopori by the 3G Partnership Project 2 (3GPP2). The two technologies are not compatible and indeed compete.

One of the reasons why the 3G service can provide a greater throughput is due to the use of spread spectrum technology that allows data input that would ditransimisikan assigned to the entire frequency spectrum. In addition to getting the band width of the larger, spread spectrum-based services is far more secure than the timeslot and / or frequency slots.

3G network is not upgraded from the 2G, 2G operator affiliated with the 3GPP need to replace many components to be able to provide 3G services. While the operator is affiliated with the 2G technology in 3GPP2 easily upgrade to the 3G network because the element is designed for services to the wireless wide band (wireless broadband). 3G services have also been digembar rant, but in reality, many found the failure. Japan and South Korea is an example where 3G services successfully. This is probably caused by factors:

Support the government. The Japanese government does not charge in advance (upfront fee) on the use of 3G spectrum licenses up-service operator in Japan (there are three operators: NTT DoCoMo, KDDI and Vodafone). Meanwhile, South Korean government, even though any charge in advance, to provide incentives and assistance in the development of wireless wide band (South Korea is a country that uses Cisco Gigabit Switch Router highest in the world) as part of the strategy in infrastructure development.
Culture community. Video call service, which diramal a killer application is not too much is used in the two countries. However, services such as music downloads and Internet access very tune. Operators such as NTT DoCoMo (Japan) to provide service to download Chaku Uta music. While in Korea, services like Cyworld web presence provided by SK Tel, great tune. With this service, customers can take photos directly from the handset and the web portal to memuatnya own in Cyworld. This service is then imitated by Flickr with the N73 handset.
The variety of content services. DoCoMo SKTel and does not use WAP as a standard service to its content. DoCoMo to develop a browser application which is called imode, while SKTel have Nate and June.

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