3G

By: Manasvi Mehta

What is 3G?• 3G is the third generation of wireless

technologies. It comes with enhancements over previous wireless technologies, like high-speed transmission, advanced multimedia access and global roaming.

• 3G is mostly used with mobile phones and handsets as a means to connect the phone to the Internet or other IP networks in order to make voice and video calls, to download and upload data and to surf the net.

How 3G works?• 3G-enabled devices – including phones and

laptops – work by sending and receiving radio signals to and from base stations (sometimes known as ‘masts’). Base stations link individual phones into the rest of the mobile and landline networks.

• Base stations are low power radio transmitters and need to be located in the areas they are intended to serve. They provide coverage to a geographical area known as a cell. These cells need to overlap to enable seamless coverage and to ensure a user does not lose connection to the network when on the move.

Birth of 3G• The first pre-commercial trial network with 3G

was launched by NTT DoCoMo in Japan in the Tokyo region in May 2001. NTT DoCoMo launched the first commercial 3G network on October 1, 2001, using the WCDMA technology.

Top 3G Providers- World Wide

• China Mobile [China]

• Sing Tel [Singapore]

• Vodafone [UK]

• Claro [Mexico]

• Airtel [INDIA]

Top 3G Providers in INDIA

• Airtel• Vodafone Essar• Idea• Reliance• BSNL-MTNL

Faster & Better

What is next? 4G?• Yes! 4G technology is the fourth level of wireless

technology . The first generation of wireless technology available, 1G, refers to the analog signal used by cellular towers. 2G technology upgraded the analog signal to digital and allowed the inclusion of sending texts across the network. 3G technology made use of electromagnetic wavelengths, known as spectrum, to broadcast a wireless broadband signal that allowed users to access the Internet and download applications . 4G technology upgrades further to faster information transfer times, heightened security and greater information exchange abilities.

Generation Cycle

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