What is 3G?

• 3G is the third generation technology offering broadband mobile communications with voice, video, graphics, audio and other information.

• It supersedes 2G and precedes 4G.• 2.5G was a temporary bridge between 2G & 3G.• Required Features:– faster data-transmission speeds.– greater network capacity.– more advanced network services.

3G facilitates several new applications that have not previously been readily available over mobile networks due to the limitations in data transmission speeds.

These applications range from Web Browsing to file transfer to Home Automation.

Because of the bandwidth increase, these applications will be even more easily available with 3G than they were previously with interim technologies.

Feature Of 3G

• 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.

How does 3G works?

• 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 3 Mbps (3min mp3 take 15 sec to download).

• Comparison to the fastest 2G phones can achieve up to 144Kbps (3min mp3 take 8 min to download).

Services By 3G

• video conferencing• receiving streaming video from the Web• IPTV• sending and receiving faxes • instantly downloading e-mail messages with

attachments.

3G Protocol

• 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 Development

• 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 launch of 3G was by NTT DOCOMO in Japan on october 2001.

Advantage & Disadvantage of 3G

• Advantage:– International Telecommunication Union .– International Mobile Telecommunications

program.• Disadvantage:– 3G networks do not use the same radio

frequencies as 2G.– Expensive.

3G Service provider in India

Thank you