[Korea ohahreum financial newspaper reporter] 4G also opens the era of high-definition HD-quality movie (1.7GB) can download and view in 15 seconds.
SK Telecom has succeeded the last stage of LTE-A Pro (LTE-Advanced Pro) technology in LTE evolution to the test said sangyongmang 27.
SK Telecom is the MWC this three-band CA Technology CA Technology apply △ 5 △ 4x4 multi-band antenna with Samsung Electronics in 2017, Ericsson will jointly demonstrate the △ 1Gbps each unlicensed frequency band aggregation technology.
First, SK Telecom has succeeded in five frequency bands to tie the SEC and demonstrating the world's first 5-band CA (frequency aggregation) technology used in frequency as one sangyongmang.
The standardized by the 3GPP standard CA CA is now 5-band technology with frequency bands up to five LTE is the best technology. There are domestic mobile operators are SK Telecom, among the only five have a five-band frequency band it is possible to provide CA services.
In addition, SK Telecom and Samsung Electronics has implemented a download speed of up to 900Mbps in sangyongmang combines 4x4 multiple-antenna technology with three-band CA technology tie the three frequency bands.
SK Telecom has introduced LTE service speed of up to 500Mbps to apply the 256 kwam (QAM) technology since last June. Since improves the download speed almost doubled in just one year.
4x4 multi-antenna (MIMO) technique is doubled compared to existing allow for increasing the data transmission rate by utilizing the four antennas for data transmission and reception at the same time is described. The current data transmission and reception has gotta a 2x2 multi-antenna technology to utilize two antennas, each application.
SK Telecom plans to apply a 4x4 multiple antennas in commercial service in the first half of this year. When this technique is applied using SK Telecom's LTE customers will be able to view and download movies in HD quality on the go for 15 seconds.
Meanwhile, SK Telecom is exempt frequency bands to tie the aggregate technical and Ericsson Mobile Communications LTE frequency with LTE frequencies for Wi-Fi signals transmitted to: the success was also demonstrated by the speed (LAA Licensed Assisted Access) 1Gbps.
The demonstration in the LTE frequency band strapped to 20MHz and 60MHz frequency band for Wi-Fi, applying a 4x4 multiple-antenna technology in the LTE frequency band has achieved a maximum 1Gbps speed.
LTE-A technology professionals such as frequency aggregation (CA) · 4x4 multiple antennas, unlicensed frequency band aggregation technology is LTE technology specifications is developed prior to the final 5G mobile communications. SK Telecom explained that before the era 5G LTE-A technology commercialization professionals ultra-high definition (UHD) video, virtual reality (VR) and ultra realistic to expect the diffusion-type multimedia services.
SK Telecom bakjinhyo network technology director, said, "SK Telecom will continue to domestic subscribers, as well as 5G continues to innovate in LTE to experience a world-class mobile communication services."
Samsung Network Division rate of Strategic Marketing said, "Through LTE-A professional technology demonstration of this SK Telecom confirmed not far from the numbers was 1Gbps communication services commercialization of dream notes on LTE," said "technology to the final stage of the LTE technology leading the development and said we will set the stage for moving on to 5G age. "
Ericsson're in the buffer Naveen (Per Narvinger) Network Systems Executive Vice President, "This unlicensed frequency aggregation technology demonstration has been applying this technology to eliminate interference between LTE frequency and Wi-Fi frequency," he said "this LTE via ∙ Wi-Fi using both customers said it would be able to comfortably use the network. "
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