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"Long term evolution" redirects here. For the biological concept, see Evolution and E. coli long-term evolution experiment.
Adoption of LTE technology as of May 8, 2012.
Countries with commercial LTE service
Countries with commercial LTE network deployment on-going or planned Countries with LTE trial systems (pre-commitment)
LTE, an initialism of long-term evolution, marketed as 4G LTE, is a standard for wireless communication of high-speed data for mobile phones and data terminals. It is based on the GSM/EDGE and UMTS/HSPA network technologies, increasing the capacity and speed using a different radio interface together with core network improvements. The standard is developed by the 3GPP (3rd Generation Partnership Project) and is specified in its Release 8 document series, with minor enhancements described in Release 9. The world's first publicly available LTE service was launched by TeliaSonera in Oslo and Stockholm on December 14 2009. LTE is the natural upgrade path for carriers with both GSM/UMTS networks and CDMA networks such as Verizon Wireless, who launched the first large-scale LTE network in North America in 2010, and au by KDDI in Japan have announced they will migrate to LTE. LTE is, therefore, anticipated to become the first truly global mobile phone standard, although the use of different frequency bands in different countries will mean that only multi-band phones will be able to use LTE in all countries where it is supported. Although marketed as a 4G wireless service, LTE as specified in the 3GPP Release 8 and 9 document series does not satisfy the technical requirements the 3GPP consortium has adopted for its new standard generation, and which were originally set forth by the ITU-R organization in its IMT-Advanced specification. However, due to marketing pressures and the significant advancements that WIMAX, HSPA+ and LTE bring to the original 3G technologies, ITU later decided that LTE together with the aforementioned technologies can be called 4G technologies.  The LTE Advanced standard formally satisfies the ITU-R requirements to be considered IMT-Advanced. And to differentiate LTE-Advanced and WiMAX-Advanced from current 4G technologies, ITU has defined them as "True 4G". Contents [hide] * 1 Overview * 2 Features * 3 Voice calls * 3.1 Enhanced voice quality * 4 Frequency bands * 5 Patents * 6 See also * 7 References * 8 Further reading * 9 External links * 9.1 White papers and other technical information
|  Overview
See also: LTE timeline and List of LTE networks
Telia-branded Samsung LTE modem
HTC ThunderBolt, the second commercially available LTE smartphone LTE is a standard for wireless data communications technology and an evolution of the GSM/UMTS standards. The goal of LTE was to increase the capacity and speed of wireless data networks using new DSP (digital signal processing) techniques and modulations that were developed around the turn of the millennium. A further goal was the redesign and simplification of the network architecture to an IP-based system with significantly reduced transfer latency compared to the 3G architecture. The LTE wireless interface is incompatible with 2G and 3G networks, so that it must be operated on a separate wireless spectrum. LTE was first proposed by NTT DoCoMo of Japan in 2004, and studies on the new standard officially commenced in 2005. In May 2007, the LTE/SAE Trial Initiative (LSTI) alliance was founded as a global collaboration between vendors and operators with the goal of verifying and promoting the new standard in order to ensure the global introduction of the technology as quickly as possible. The LTE standard was finalized in December 2008, and the first publicly available LTE service was launched by TeliaSonera in Oslo and Stockholm on December 14, 2009 as a...
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