3g and 2g technology difference

Wireless interview 2g and 3g
3g and 2g technology difference?

• Packet data speed is higher in 3G, and it is up to 384 KBPS
• Voice and sms speed is also 384 KBPS in 3G
• 2G utilizes different switching techniques for voice and data, where as 3G uses single switching, irrespective of data
• 3G has at least 2MB of data link of a mobile, where in 2G the data rate is in KBPS
• 3G has WiMAX facility for faster VOIP and internet
• 2G uses GSM TDMA technology with narrowband 200Khz.
• 3G uses CDMA technology with broadband 5Mhz, with same frequency carrier and time.