4G Technology & its spread in india

The fourth generation of wireless standards for cellular systems is 4G , the planned successor to the 3G standard. The ITU (International Telecommunications Union) has specified that the peak speed requirements for the 4G standard are to be 100Mbps for a mobile connection (such as in a car) and 1Gbps for stationary connections (such as sitting at a computer).
The 4G service is set to offer a fast and secure all-IP, roaming mobile broadband solution to devices such as laptops with wireless 4G modems, smartphone mobile phones and other mobile devices that require internet access with speed intensive facilities being made available, including on-demand HD television, IP telephony, on-demand gaming and, of course, high speed internet access.

For more information see this…

Applications

  •  Ultra high speed internet access – E-mail or general web browsing is available.
  • 4G Data intensive interactive user services – Services such as online satellite mapping will load instantly.
  • Multiple User Video conferencing – subscribers can see as well as talk to more than one person.
  • Location-based services – a provider sends wide spread, real time weather or traffic conditions to the computer or phone, or allows the subscriber to find and view nearby businesses or friends whilst communicating with them.
  • Tele-medicine – a medical provider monitors or provides advice to the potentially isolated subscriber whilst also streaming to them related videos and guides.
  • HDTV – a provider redirects a high definition TV channel directly to the subscriber where it can be watched.
  • High Definition Video on demand – a provider sends a movie to the subscriber.
  • Video games on demand – a provider sends game data directly to the subscriber where they can play in real time.
Performance
The IMT-Advanced Standard requires the following specifications to be met:
  • It must be based upon an all-IP packet switched network
  • Peak data rates must be up to 100Mbps in high mobility situations and up to 1Gbps for low mobility/stationary applications
  • Network resources should be utilised and dynamically shared to support more users on same connection
  • Channel bandwidth should be scalable between 5, 20 and up to 40MHz
  • Spectral efficiency should be no less than 15bit/s/Hz and 6.75bit/s/Hz for outdoor downlink and uplink usage respectively
  • Spectral efficiency should be no less than 3bit/s/Hz and 2.25bit/s/Hz for indoor downlink and uplink usage respectively
  • Connection transitions across heterogeneous networks should be smooth
  • A high quality of service must be available to allow the next generation of multimedia support on mobile devices
4G network map of India that highlights the allotted 4G license and supported BAND for different telecom operators in India.

Image result for 4g network band in india

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