3G technology

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. 3G is the third generation technology . . It supersedes 2G and precedes 4G . . 2.5G was a temporary bridge between 2G and 3G . . Required Features : Faster data – transmission speeds . Greater network capacity . More advanced network services . 3-G Technology What is 3G ?

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3G promises increased bandwidth . Up to 384 kbps at stable . 128 kbps in a car or moving . 2 Mbps in fixed applications . 3G will work over wireless air interfaces such as GSM , TDMA , and CDMA . The new EDGE air interface has been developed specifically to meet the bandwidth needs of 3G . Features of 3G

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3G technology is intended for the true multimedia cell phone ( Smartphone ) . Features increased bandwidth and transfer rates to accommodate Web-based applications and phone-based audio and video files . 3G networks have potential transfer speeds of up to 3Mbps ( 3min mp3 take 15 sec to download ) . Comparison to the faster 2G phones can achieve up to 144 Kbps ( 3min mp3 take 8 min to download ) . How 3G works ?

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Video conferencing Receiving streaming video from the Web IPTV Sending and receiving faxes Instantly downloading e-mail messages with attachments . Services by 3G

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Protocols in 3G transmit data in terms of megabytes per second rather than kilobytes ( some as fast as 10 Mbps ) . Universal Mobile Telecommunication Service ( UMTS ) . Wideband Code – Division Multiple Access ( WCDMA ) . High – Speed Downlink Packet Access ( HSDPA ) . Evolution Data Maximized ( EVDO) . 3G Protocol

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December 2005 , 100 3G networks were operating in 40 countries . In Europe , 3G services were introduced starting in March 2003 in the UK and Italy . By June 2007 the 200 millionth 3G subscriber had been connected . The first commercial UMTS 3G network in Africa ( the first test call was made on 16 October 2004 ) . 3G Development

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Advantage : International Telecommunication Union . International Mobile Telecommunications program . Disadvantages : 3G networks do not use the same radio frequencies as 2G . Expensive Advantage & Disadvantage of 3G

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3G Service Provider in India

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THANK YOU By : UTKARSH IX - C

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