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Radiocommunication Sector (ITU-R)  
ITU global standard for international mobile telecommunications ´IMT-Advanced´
Scope
For the last 25 years, ITU has been coordinating efforts of government and industry and private sector in the development of a global broadband multimedia international mobile telecommunication system, known as IMT. Since 2000, the world has seen the introduction of the first family of standards derived from the IMT concept. Nowadays there are more than 2 billion IMT subscribers in the world!

´IMT-Advanced´ provides a global platform on which to build the next generations of mobile services - fast data access, unified messaging and broadband multimedia - in the form of exciting new interactive services.


After an intensive week at the Radiocommunication Assembly (RA-12), in Geneva , 16-20 January 2012, consensus was reached to expand the IMT Radio Interface Family by establishing the new IMT-Advanced standard. The Recommendation ITU-R M.2012 dealing with IMT was approved by all Member States.

During the ITU World Radiocommunication Conference (WRC-12) in Geneva, 23 January - 17 February 2012, it was agreed that additional spectrum for the mobile applications (which includes IMT) was made in Resolution 232 in the band 694 - 790 MHz in Region 1 and additionally asked the ITU-R to perform sharing studies in this band and in additional bands to be identified for IMT in preparation for WRC-15 (Resolution 233). The additional spectrum will be assigned by the next WRC-15.


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´IMT-Advanced´
International Mobile Telecommunications-Advanced (IMT-Advanced) systems are mobile systems that include the new capabilities of IMT that go beyond those of IMT-2000. Such systems provide access to a wide range of telecommunication services including advanced mobile services, supported by mobile and fixed networks, which are increasingly packet-based.

IMT-Advanced systems support low to high mobility applications and a wide range of data rates in accordance with user and service demands in multiple user environments. IMT Advanced also has capabilities for high quality multimedia applications within a wide range of services and platforms, providing a significant improvement in performance and quality of service.


Key features of ´IMT-Advanced´
  • a high degree of commonality of functionality worldwide while retaining the flexibility to support a wide range of services and applications in a cost efficient manner;
  • compatibility of services within IMT and with fixed networks;
  • capability of interworking with other radio access systems;
  • high quality mobile services;
  • user equipment suitable for worldwide use;
  • user-friendly applications, services and equipment;
  • worldwide roaming capability; and,
  • enhanced peak data rates to support advanced services and applications (100 Mbit/s for high and 1 Gbit/s for low mobility were established as targets for research)*.
These features enable IMT-Advanced to address evolving user needs and the capabilities of IMT-Advanced systems are being continuously enhanced in line with user trends and technology developments.

* Data rates sourced from Recommendation ITU-R M.1645 - ´Framework and overall objectives of the future development of IMT-2000 and systems beyond IMT-2000´.


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Updated : 2013-01-17