2. 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.
3. 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.
4. 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.
5. Top 3G Providers-
World Wide
• China Mobile [China]
• Sing Tel [Singapore]
• Vodafone [UK]
• Claro [Mexico]
• Airtel [INDIA]
6. Top 3G Providers in
INDIA
• Airtel
• Vodafone Essar
• Idea
• Reliance
• BSNL-MTNL
8. 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.
