What is 3G – And Where is 3g?

What is 3G?

  • 3G (third generation) is a collection of international standards and technologies.
  • 3G increases efficiency by improving the performance of mobile wireless networks.

1G – 2G – 3G

  • 1G – Analog networks
  • 2G – Digital wireless phone on circuit switched networks
  • 3G – Digital wireless phone on packet switched networks

The Speed

  • Up to 144Kbps in a high-speed moving environment (Present)
  • Up to 384Kbps in a low-speed moving environment (Present)
  • Up to 2Mbps in a stationary environment (Future)

Note: The speed for 2G is 9.6 kbps – 14.4 kbps.

World’s First 3G Netowrk

On May 30, 2001, NTT DoCoMO launched the world first application of W-CDMA, one of the IMT – 2000 global mobile communications standards.

With a maximum downlink transmission speed of 384 kbps.

Personal Scene

  • Take on-line shopping for example. You will be able to view and select still images of merchandise, then make payments from your electronic wallet (Digital Catalog Shopping).
  • Video Mail
  • Mobile Banking
  • Digital Information Delivery (Audio and Video)

Home Scene

  • Directly connect to a home automation system and be able to turn on/off home appliances such as lighting and air conditioners.
  • You will have a greater control of your home security system by displaying security monitor images on your cellular phone terminal display.

Entertainment Scene

  • You will be able to view plays, concerts, and sports events in real-time.
  • You will be able to download your favorite music, movies, and games at your leisure.
  • You will be able to use the electronic encyclopedia, even with photographs.

Business Scene

  • Retrieve vital business information from anywhere around the world.
  • Conduct video conferencing with branch offices and business partners.
  • Send/receive customer and sales data.


  • Greater efficiency
  • Lower development costs
  • Backward compatibility with 2G standards
  • Key benefits:
  • Up to double voice capacity of the network.
  • A 10-fold increase in data speeds, from 14.4 kbps to 144 kbps.
  • An approximately 50 percent increase battery performance life in standby mode.


  • Not all handsets are 3G ready
  • Higher revenue consumption
  • Network roll-out investment

Revenues From 3G

  • Charging for network access and airtime.
  • Charging for content and value-added services or transactions (NTT i-mode).

The Impact

  • No one can really predict how much impact 3G will have on our lives, but the impact will certainly be great.
  • There will be a lot of e-commerce opportunity once the 3G is wildly used; however, finding the one golden opportunity is going to be challenging.

And Where is 3G

  • Please discuss in comments!