Wireless Future - Evolution -> 3G (3rd generation of mobile networks)

During the first and second generations different regions of the world pursued different mobile phone standards, but are converging to a common standard for mobile multimedia called Third Generation (3G) that is based on CDMA technology. Europe pursued NMT and TACS for analog and GSM for digital, North America pursued AMPS for analog and a mix of TDMA, CDMA and GSM for digital. 3G will bring these incompatible standards together.

The Third Generation of mobile communications systems will soon be implemented. Following on the heals of analog and digital technology, the Third Generation will be digital mobile multimedia offering broadband mobile communications with voice, video, graphics, audio and other information. In fact, in countries such as

Japan, South Korea and Singapore 3G networks are already deployed and being used. In other countries it is either in implementation stage or in testing stage. Table 1 below summarises the comparison of all these various generations in mobile telephony.

Generation	Transmission technology	Current location
1G	AMPS (Advanced Mobile Phone Service)	US, but declining usage in metro areas
2G	CDMA (Code Division Multiple Access)	Mostly metro areas
	TDMA (Time Division Multiple Access)	Being phased out
	GSM (Global System for Mobile Communications)	Most of the world except US
2.5G	GPRS (General Packet Radio Service) and CDMA 2000 1x	Current changes in the US and some other areas
2.75G	EDGE (Enhanced Data rated for Global Evolution)	In deployment phase in the US
3G	CDMA2000 (Broadband CDMA)	Current push for use in the US
	W-CDMA (Wideband CDMA)	Standard in Japan and Europe

Table 1: Generations of Mobile Technology

Source: Austin’s Wireless Future


<<< 2.5G (2.5G GPRS networks) Wireless Future - 4G >>>

HSDPA, LBS, WAP, J2ME, SMS, GPRS, 3G, GSM, Bluetooth, MExE, Mobitex, Wi-Fi, VoIP WiMAX Wireless News

Advertise @ m-indya.com Forum