Thursday, October 28, 2010

3G Mobile Services

3G SPECTRUM

International Mobile Telecommunications-2000 (IMT--2000), better known as 3G or 3rd Generation, is a generation of standards for mobile phones and mobile telecommunications services fulfilling specifications by the International Telecommunication Union. Application services include wide-area wireless voice telephone, mobile Internet access, video calls and mobile TV, all in a mobile environment.

Compared to the older 2G and 2.5G standards, a 3G system must allow simultaneous use of speech and data services, and provide peak data rates of at least 200 kbit/s according to the IMT-2000 specification.

APPLICATIONS

The bandwidth and location information available to 3G devices gives rise to applications not previously available to mobile phone users. Some of the applications are:

  • Mobile TV – a provider redirects a TV channel directly to the subscriber's phone where it can be watched.
  • Video on demand – a provider sends a movie to the subscriber's phone.
  • Video conferencing – subscribers can see as well as talk to each other.
  • Tele-medicine – a medical provider monitors or provides advice to the potentially isolated subscriber.
  • Location-based services – a provider sends localized weather or traffic conditions to the phone, or the phone allows the subscriber to find nearby businesses or friends.

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