3G Technology and Modem
Nowadays, handphone is become general trend in society. But for lovers of technology, Hand Phone model is not only the main reason to have Hand Phone. How is Hand Phone's ability to work, and how much Hand Phone can be a solution of communication which is the main reason for technology lovers.
One of the trends that are infecting the world's telecommunications is 3G. Since the communication specialist has to solve a problem or wireless LAN, the development of technology has been sharp slide to the 3G (Do not correct, 4g also touchable ... but we will only discuss the 3G). 3G technology is the development of wireless phone (wireless) which is the abbreviation of the English term "Third Generation Technology" (third-generation technology).
There is also the development of wireless technology briefly as follows:
1. First generation: analog, low-speed (low-speed), enough to vote. Example: NMT (Nordic Mobile Telephone) and AMPS (Analog Mobile Phone System)
2. Second-generation: digital, low-speed - medium. Example: GSM and CDMA2000 1xRTT
3. Third generation: digital, high-speed (high-speed), for wide-band (broadband). Example: W-CDMA (also known with or UMTS) and CDMA2000 1xEV-DO.
Between second-generation and generation-3, often inserted Generation 2.5, which is digital, medium-speed (up to 150 Kbps). Technology incoming 2.5 G is a category-based data services such as GPRS (General Packet Radio Service) & EDGE (Enhance Data rate for GSM Evolution) in the GSM domain and PDN (Packet Data Network) in the CDMA domain.