SK Telecom Inaugurates Commercial LTE-A Network

 SK Telecom has launched the world’s first LTE-Advanced (LTE-A) service through smartphones.

The company achieved such a milestone in only less than two years after commercializing the nation’s first LTE service in July 2011. 
LTE-A offers ultra-fast network speeds of up to 150 Mbps, which is two times faster than that of LTE, and 10 times faster than 3G network. For instance, LTE-A users can download an 800MB movie in just 43 seconds. 
 
With the commercialization of LTE-A, the company expects to further improve customer satisfaction in mobile Internet services, and increase the use of ultra-fast video contents and other diverse mobile value added services. 

To commercialize LTE-A, SK Telecom successfully developed and applied the most-advanced mobile network technologies. The company already applied Carrier Aggregation (CA) and Coordinated Multi Point (CoMP), and plans to apply Enhanced Inter-Cell Interference Coordination (eICIC) in 2014.

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CA, commercialized for the first time in the world by SK Telecom, supports up to 150Mpbs speed by combining two 10 MHz components carriers to form an effective bandwidth of 20 MHz spectrum bands.

With the surge of data traffic worldwide, CA will act as the key enabler for network evolution among mobile operators around the world. According to network experts, CA will be further advanced to realize up to 300Mbps speed by aggregating two 20MHz component carriers by 2015, and become capable of combining three component carriers by 2016. In addition, they expect to see the realization of uplink CA by 2016. The current CA standards allow for up to five 20 MHz carriers to be aggregated.

SK Telecom has fiercely competed with mobile carriers of other advanced nations to achieve the world’s first LTE-A commercialization. Up to date, 13 operators*1) of 8 nations, including Verizon, AT&T, NTT Docomo and Telenor, have announced plans to launch LTE-A, and among them Sprint, Telstra, 3 Italia and Yota said that they will do so within this year. However, no carrier, besides SK Telecom, has yet reached the goal by launching LTE-A network through LTE-A compatible phone. 

Source: SK Telecom Press Release

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