Journal of Broadcast Engineering (방송공학회논문지)

The Korean Institute of Broadcast and Media Engineers (한국방송∙미디어공학회)
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Development of ATSC3.0 based UHDTV Broadcasting System providing Ultra-high-quality Service that supports HDR/WCG Video and 3D Audio, and a Fixed UHD/Mobile HD Service

HDR/WCG 비디오와 3D 오디오를 지원하는 초고품질 방송서비스와 고정 UHD/이동 HD 방송 서비스를 제공하는 ATSC 3.0 기반 UHDTV 방송 시스템 개발

  • Ki, Myungseok (Broadcasting and Media Research Laboratory, ETRI(Electronics and Telecommunications Research Institute)) ;
  • Seok, Jinwuk (Broadcasting and Media Research Laboratory, ETRI(Electronics and Telecommunications Research Institute)) ;
  • Beack, Seungkwon (Broadcasting and Media Research Laboratory, ETRI(Electronics and Telecommunications Research Institute)) ;
  • Jang, Daeyoung (Broadcasting and Media Research Laboratory, ETRI(Electronics and Telecommunications Research Institute)) ;
  • Lee, Taejin (Broadcasting and Media Research Laboratory, ETRI(Electronics and Telecommunications Research Institute)) ;
  • Kim, Hui Yong (Broadcasting and Media Research Laboratory, ETRI(Electronics and Telecommunications Research Institute)) ;
  • Oh, Hyeju (Broadcasting and Media Research Laboratory, ETRI(Electronics and Telecommunications Research Institute)) ;
  • Lim, Bo-mi (Broadcasting and Media Research Laboratory, ETRI(Electronics and Telecommunications Research Institute)) ;
  • Bae, Byungjun (Broadcasting and Media Research Laboratory, ETRI(Electronics and Telecommunications Research Institute)) ;
  • Kim, Heung Mook (Broadcasting and Media Research Laboratory, ETRI(Electronics and Telecommunications Research Institute)) ;
  • Choi, Jin Soo (Broadcasting and Media Research Laboratory, ETRI(Electronics and Telecommunications Research Institute))
  • 기명석 (한국전자통신연구원 방송미디어연구소) ;
  • 석진욱 (한국전자통신연구원 방송미디어연구소) ;
  • 백승권 (한국전자통신연구원 방송미디어연구소) ;
  • 장대영 (한국전자통신연구원 방송미디어연구소) ;
  • 이태진 (한국전자통신연구원 방송미디어연구소) ;
  • 김휘용 (한국전자통신연구원 방송미디어연구소) ;
  • 오혜주 (한국전자통신연구원 방송미디어연구소) ;
  • 임보미 (한국전자통신연구원 방송미디어연구소) ;
  • 배병준 (한국전자통신연구원 방송미디어연구소) ;
  • 김흥묵 (한국전자통신연구원 방송미디어연구소) ;
  • 최진수 (한국전자통신연구원 방송미디어연구소)
  • Received : 2017.10.12
  • Accepted : 2017.10.27
  • Published : 2017.11.30
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Abstract

Due to the large-scale TV display, the convergence of broadcasting and broadband, and the advancement of signal compression and transmission technology, terrestrial digital broadcasting has evolved into UHD broadcasting capable of providing simultaneous broadcasting of fixed UHD and mobile HD. The Korean standard for terrestrial UHDTV broadcasting is based on ATSC 3.0, the broadcasting standard of North America. The terrestrial UHDTV broadcasting standard chose that as a new AV codec standard, HEVC video codec which can compress with higher efficiency compared to AVC, and MPEG-H 3D audio codec for realistic audio. Also, DASH and MMT are adopted as transmission format instead of MPEG-2 TS to support broadband as well as broadcasting network, and in order to provide 4K UHD/mobile HD service simultaneously ROUTE multiplexing technology is applied. In this paper, we propose an audio/video encoder, which is required to provide HDR/WCG supported high quality video service, 10.2 channel/4 object supporting stereo sound service, fixed UHD and mobile HD simultaneous broadcasting service based on ATSC3.0, also we implemented the ATSC 3.0 LDM system for ROUTE/DASH packager, multiplexing system and physical layer transmission/reception, and verified the service ability by applying it to real time broadcast environment.

TV디스플레이 대형화, 방송과 통신의 융합화, 신호 압축 및 전송 기술의 고도화로 인해 지상파 디지털 방송은 초고품질 방송, 하이브리드 방송, 고정UHD/이동HD 동시방송을 제공할 수 있는 UHD 방송으로 진화하고 있다. 이러한 지상파 UHDTV 방송을 위한 국내 표준은 북미의 차세대 방송 표준인 ATSC3.0을 근간으로 하고 있다. ATSC3.0은 비디오 압축 표준으로 HEVC 비디오 부호화 표준을, 오디오 압축 표준으로는 MPEG-H 3D 오디오 부호화 표준을 채택하고 있다. 또한 방송망과 IP망에서의 운용을 위해 기존의 MPEG-2 TS 방식을 대신하여 IP기반의 ROUTE/DASH와 MMT를 전송 포맷으로 채택하고 있으며, 4K UHD 방송과 이동 HD 서비스를 동시에 제공하기 위한 다중화 기술을 도입하고 있다. 본 논문에서는 ATSC3.0을 기반으로 HDR/WCG 지원 고품질 비디오 서비스, 10.2채널/4객체 지원 입체음향 서비스, 고정 UHD와 이동 HD 동시방송 서비스를 제공하기 위해 필요한 오디오/비디오 부호화기, ROUTE/DASH 패키저, 다중화 시스템과 물리계층 송수신을 위한 ATSC 3.0 LDM 시스템을 구현하고, 이를 실시간 방송 송수신 환경에 적용하여 서비스 가능성을 검증하고자 하였다.

Keywords

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