대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)

대한전자공학회 (The Institute of Electronics and Information Engineers)
권호 표지

TD-HSDPA에서 효율적인 스케줄링을 위한 채널품질정보 (CQI) 전송

Transmission of channel quality indicator (CQI) for efficient scheduling of TD-HSDPA systems

  • 여운영 (세종대학교 정보통신공학과) ;
  • 이상연 (SK텔레콤 중국R&D그룹)
  • Yeo, Woon-Young (Department of Information and Communication Engineering, Sejong University) ;
  • Lee, Sang-Yun (China R&D Group, SK Telecom)
  • 발행 : 2008.06.18
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초록

TD-SCDMA combines TDMA and CDMA components to provide more efficient use of radio resources, and includes a new feature called HSDPA (high-speed downlink packet access) in the R5 stage. The TD-HSDPA supports high-speed traffic with a shared channel, but the adopted mechanism causes feedback problem for scheduling. In this paper, we propose an improved mechanism that transmits channel quality indicator (CQI) more frequently, so that the TD-HSDPA scheduler can utilize all possible information about the downlink channel status.

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