SKT Boosts Indoor 5G Speeds with 5GX In-Building Solution
Published2019.08.13 11:01| Application of active antenna technology supporting 4Tx-4Rx MIMO
| Up to 16 times the data processing capacity of LTE
Stable indoor 5G speeds are becoming increasingly realistic.
SK Telecom announced on the 7th that it has successfully developed a '5GX in-building solution' that can double indoor 5G speeds and effectively distribute traffic in data-intensive areas such as subways and shopping malls.
SK Telecom has completed technology development and final performance verification by establishing a test bed for collaboration with domestic small and medium-sized equipment manufacturers within its ICT Technology Center, and has applied the 5GX in-building solution on a trial basis to the commercial network of its Bundang office building. The solution will be fully implemented in commercial networks starting in the third quarter of this year.
MIMO stands for Multiple-Input and Multiple-Output, and is a technology for increasing the capacity of 5G communications. It uses multiple transmitting and receiving antennas to enable faster and larger data transmissions in the same frequency band.
The solution developed this time applies 'active antenna' technology that supports '4Tx-4Rx' MIMO. By utilizing 4Tx-4Rx MIMO technology, '5G small cells', which are small indoor base stations, can be equipped with four antennas for transmitting and receiving data each. Compared to the existing '2Tx-2Rx' MIMO technology that has two transmitting and receiving antennas each, the data transmission speed is approximately twice as fast, allowing gigabit (Gbps) speeds to be experienced even indoors.
Additionally, the data processing capacity that base stations can handle has increased by up to 16 times compared to LTE, enabling smooth 5G service without delay even in densely populated areas such as subways and shopping malls.
SK Telecom 5GX Labs Director Park Jong-kwan said, “Once the 5G era begins in earnest, it is expected that 80% of total traffic will occur indoors,” and added, “We will continue to work to ensure that customers can use 5G services without interruption even in densely populated areas such as indoor areas and subways where radio waves are difficult to reach.”
Meanwhile, SK Telecom was recognized for its contribution to the development of a 3.5GHz band RF repeater when it was selected as the winner in the ‘Commercial Small Cell Design and Technology’ category at the ‘Small Cell Award 2019’ held in London, England in May.
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