amit topkar

• Oct 15th, 2007

 

2g-digital
3g-wcdma


2g containing-gsm+edge
  -gsm+gprs
    -gsm+vas1
speed of bit rate low



where 3g-wcdma
-more faster bit rate than 2g
-for  quality control rrm algo used      

Brindhan

 Profile Answers by Brindhan 

• Mar 24th, 2009

 

In 3G, Internet connection is faster, better call quality,Video and Audio services but, drains battery life quicker (twice as fast). Moreover coverage area is less than in 2G.

mathan_vel

 Profile Answers by mathan_vel Questions by mathan_vel

• Oct 21st, 2009

 

2G and 3 G is a family of standards for mobile telecommunications defined by the International Telecommunication Union,which includes GSM EDGE, UMTS, and CDMA2000 as well as DECT and WiMAX. Services include wide-area wireless voice telephone, video calls, and wireless data, all in a mobile environment.

2G Stands for second generation mobile telephony standards, where 3G defined the third generation  mobile telephony standards to facilitate growth, increase bandwidth, and support more diverse applications.For example, GSM (the current most popular cellular phone standard) could deliver not only voice, but also circuit-switched data at download rates up to 14.4 kbps. But to support mobile multimedia applications, 3G had to deliver packet-switched data with better spectral efficiency, at far greater bandwidths.