The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Sharing Studies between IMT Base Stations and FSS Earth Station in C-band

C-대역에서 IMT 기지국과 FSS 지구국간의 주파수 공유 연구

  • Kang, Young-Heung (School of Electronic & Information Eng., Gunsan National University) ;
  • Park, Jong-Min (Broadcasting & Telecommunications Convergence Research Laboratory, Global Area Wireless Transmission Research Team, Electronics and Telecommunications Research Institute) ;
  • Oh, Dae-Sub (Broadcasting & Telecommunications Convergence Research Laboratory, Global Area Wireless Transmission Research Team, Electronics and Telecommunications Research Institute)
  • 강영흥 (군산대학교 전자정보공학부) ;
  • 박종민 (한국전자통신연구원 방송통신융합연구부문 광역무선전송연구팀) ;
  • 오대섭 (한국전자통신연구원 방송통신융합연구부문 광역무선전송연구팀)
  • Published : 2009.04.30
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Abstract

ITU has considered the 3,400$\sim$4,200 MHz band, which is allocated worldwide on a primary basis to the FSS, as a candidate band for future development of IMT system. In this band, this paper presents the results of the sharing studies performed between FSS and IMT systems through the theoretical and simulation analysis on the interference from multiple IMT base stations into a receiving FSS earth station considering the interference mitigation techniques such as antenna tilt angle and 3 sectors on the IMT base station. By using the long-term and short-term interference threshold, the coordination areas for the FSS earth station are provided to share frequency in 3,400$\sim$4,200 MHz band between FSS earth station and multiple IMT base stations in future.

ITU에서는 고정 위성 업무(이하 FSS: Fixed Satellite Service) 하향 회선(space-to-earth)용으로 광범위하게 사용 되어온 3,400$\sim$4,200 MHz 대역을 IMT 대역으로 검토한 바 있다. 이에 본 논문에서는 이 대역에서 다수의 IMT 기지국들이 FSS 위성지구국에 미치는 간섭 영향을 이론적으로 분석한 후, 시뮬레이션을 통해 기지국 안테나의 틸트(tilt) 각도 및 3 섹터(sector) 등에 의한 간섭 경감 기법을 고려하여, IMT 기지국과 FSS 지구국간의 주파수 공유 연구 결과를 고찰한다. 또한, 장기간(long-term) 및 단기간(short-term) 간섭 기준치를 이용, 두 무선국간의 주파수 공유를 위 한 FSS 지구국 조정 영 역(coordination area)을 도출하여 향후 3,400$\sim$4,200 MHz 대역에서 IMT 서비스와 기존 FSS 서비스간의 주파수 공유 기준치를 제공하고자 한다.

Keywords

References

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