| Galaxy S10 5G Performance Verification in 5G Test Lab
5G-LTE combination followed by 5G-LTE-WiFi triple combination
| Application of compression technology that reduces media data consumption by 30%

SK Telecom announced on the 25th that it has completed key tests for mass production of the 'Galaxy S10 5G'.
Over the course of two months, SK Telecom tested thousands of items, including ▲5G network-TM smartphone connectivity tests, ▲interface verification, and ▲frequency compatibility, at its "5G Device Test Lab" located in its Bundang office building and in commercial fields. Using specialized equipment in the lab, the company also created over 100 virtual environments and conducted scenario-specific tests.

Smartphones must pass performance tests in the "5G Device Test Lab" and on commercial networks before they can be officially released. This process is often called the final gateway to commercialization. With the completion of these key tests, the launch of the world's first 5G smartphone is expected to become much easier.

As a next step, SK Telecom will conduct delivery inspections on mass-produced products produced at its factories this week. Through this, we plan to prepare for the smooth launch of the first 5G smartphone.

In addition, SK Telecom has completed preparations for launch by adding new 5G technologies to the Galaxy S10 5G, including ▲'3-stage combination technology' that increases 5G data speeds and ▲'5G media compression technology' that reduces data consumption.


Following the 5G-LTE combination technology, 5G-LTE-Wi-Fi triple combination technology is also installed.
On the 11th, SK Telecom successfully verified the '5G-LTE combined technology' that achieves speeds of up to 2.7 Gbps and installed it first in the Galaxy S10 5G.

Furthermore, SK Telecom has installed 'Triple Aggregation', which utilizes ▲5G ▲LTE ▲Wi-Fi for data transmission simultaneously, on the Galaxy S10 5G and completed verification on the 5G commercial network.
In areas where three networks are deployed simultaneously through triple-combination technology, content or applications can be downloaded at up to 3.9 Gbps. You can download a movie (2GB) in just 4 seconds.

SK Telecom has proactively implemented the three-stage combination technology in the Galaxy S10 5G by upgrading MPTCP (Multi-Path TCP), a technology that combines LTE and Wi-Fi.

5G media compression technology reduces media data volume by more than 30%.
VR and UHD content typically consume four to six times more data than standard video. Accordingly, SK Telecom plans to apply "5G media compression technology," which reduces media data consumption by more than 30%, to 5G VR services and other services.

Existing VR streaming requires downloading the entire 360-degree scene, which consumes significant data. Applying 5G media compression technology reduces data consumption by over 30% by streaming only a portion of the scene centered on the VR user's field of view, then instantly downloading and reassembling additional sections based on gaze movement.

This is possible by leveraging the ultra-low latency characteristics of 5G. 5G's fast data response speed allows content to be downloaded faster than a customer's gaze can move. LTE's network response speed could not keep up with the customer's gaze, limiting its implementation.

SK Telecom will also apply the media codec HEVC (High Efficiency Video Coding) to the Galaxy S10 5G and 5G content. HEVC is a technology that can reduce data capacity by up to 50% by analyzing and compressing similar patterns even for content with the same picture quality.


A 5G business platform for the early launch of various 5G-specific products.
SK Telecom established a '5G Biz Platform' on its server on the 25th to support the early launch of 5G services and specialized products.

The 5G business platform was designed to facilitate the development of customized 5G products and services tailored to customer segments, time, location, and circumstances. This platform prepares various service types in advance and supports rapid product development by combining them to meet customer needs.

In the 5G era, the number of companies demanding specialized services leveraging network slicing and mobile edge computing (MEC) is expected to increase significantly. SK Telecom announced that its "5G Business Platform" will enable rapid adoption of services utilizing 5G smartphones.


AI network Tango upgraded to 5G version
SK Telecom is proactively upgrading its AI network, Tango, developed with its own technology, to suit the 5G era and commercializing it in 5G base stations and exchanges in time for the launch of 5G smartphones.

Tango ▲ analyzes big data generated from base stations nationwide to optimize communication quality in real time, including antenna direction and coverage, and ▲ predicts and automatically resolves factors that change quality, such as traffic surges, in advance.

'Tango 5G' has advanced machine learning and big data analysis technologies to suit the characteristics of 5G networks, which require two to three times more base stations than LTE. This will enable us to provide customers with a high-quality network from the moment smartphones are first commercialized.

SK Telecom ICT Technology Center Director Park Jin-hyo said, “We have commercialized cutting-edge technology that we have proactively prepared for the 5G era, timed to coincide with the launch of the world’s first 5G smartphone.” He added, “Based on this advanced technology, our customers will be able to experience the best quality even if they use the same phone.”