일본 전기통신업체 케이디디아이(KDDI)에 따르면 삼성전자와 공동으로 5G용 28GHz대역을 사용해 4K 초고화질(UHD) 감시영상을 전송하는 테스트를 완료했다.와세다대(Waseda University), 게이힌(Keihin Corporation) 및 일본전기통신기초기술연구소(Advanced Telecommunications Research Institute International, 이하 ATR)도 이 테스트에 참여했다. 삼성전자는 5G 솔루션을 제공했고, KDDI는 5G 테스트 환경을 평가 및 설계하는 역할을 담당했다. 와세다대는 모니터링 시스템, VR고글 및 비디오 평가를 제공했다.테스트는 도쿄 오타에 위치한 하네다 공항 국제선 터미널 지하철역에서 2018년 11월21일에서 12월21일까지 진행됐다. 5G를 사용해 열차의 승객 안전을 향상시키는 방법을 보여준 것으로 평가된다. 특히 지하철역에서 의심스러운 사람이나 물체가 감지되면 서버에 표시된 수신된 4K 파일이 수집되고 분석된다. 사전에 위험을 감지하고 전반적인 안전을 개선할 수 있을 것으로 기대된다. 실시간으로 4K UHD 비디오가 수집되고 분석되면 끊임없이 영상을 모니터링하는 담당 직원의 부담을 일부 없앨 수 있을 것으로 판단된다. ▲ Japan-KDDI-5G-4K-Video▲ 케이디디아이(KDDI)와 삼성전자의 테스트 홍보자료(출처 : 홈페이지)------------------------------------------------------------------Samsung Electronics and KDDI are wasting no time adapting 5G to trains in Japan. The two have completed a test using 28 GHz to transmit 4K ultrahigh-definition (UHD) surveillance video on a train platform in Tokyo.The demonstration was conducted between Nov. 21 and Dec. 21 at the Haneda Airport International Terminal in Ota, Tokyo. Along with Waseda University, Keihin Corporation and Advanced Telecommunications Research Institute International (ATR), Samsung said it was able to demonstrate effective communications through 4K UHD video using a 5G base station.It’s certainly not the first time these two have conducted 5G demos on trains. Last year, KDDI and Samsung showed how they were able to download an 8K video via the CPE installed onboard a moving train.This latest feat demonstrates how 5G can be used to increase train passenger safety. The companies say that collecting and analyzing 4K UHD videos in real time will remove some of the burdens from the staff in charge of constantly monitoring footage. It also helps them in detecting dangers in advance and improving overall safety.During the demonstration, the video files collected from both 4K security cameras and security robots patrolling the station were sent via tablets using 5G, according to a press release. The files were then received by the base station to be displayed on the monitor and virtual reality (VR) goggles in the monitoring room. Detecting any suspicious people or objects at the station was made possible through collecting and analyzing the received 4K files shown on the server.The demo used Samsung’s 5G solution, and KDDI was responsible for assessing and designing the 5G test environment at the train station, which was provided by Keikyu. Waseda University provided the monitoring system, VR goggles and video evaluation.Separately, another 5G demo involving KDDI and Samsung was conducted at an elementary school, where they compared the differences between 5G tablets and Wi-Fi tablets in their ability to download and play back videos.A gym at Maehara Elementary School in Tokyo was set up with Samsung’s 5G network at 28 GHz to enable UHD videos. They also worked with the ATR.The students were given a chance to create their own videos and experience high-speed and large capacity transmission of large video files. At the same time, they verified the capabilities of 5G for this type of use case. KDDI was responsible for assessing and designing the 5G areas used in the trial, and ATR provided the testing infrastructure.