講演名 2012-05-17
A study on CSI feedback to support Coordinated Multi-point operation for LTE-Advanced system
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抄録(和)
抄録(英) In this paper, we investigate feedback scheme of channel state information (CSI) to support single user joint transmission (SU-JT) for Long-Term Evolution (LTE)-Advanced systems studied in the 3rd Generation Partnership Project (3GPP). SU-JT, which improves cooperative transmission among network nodes (transmission points: TPs) and reduces or eliminates inter-TP interference, enables performance improvement in cell edge throughputs. Although, CSI feedback on LTE system is well designed from single cell operation perspective, its extension to SU-JT requires further analysis of contents added to per-TP CSI feedback with minimizing feedback overhead increase. To this end, we propose to take 2 different approaches i.e. 1) modified CQI calculation accounting JT gain and 2) inter-node phase information. To evaluate the benefits of them, multi-cell system level simulations with a realistic traffic model are carried out. This confirms the improved performance of the system's average and cell edge throughputs.
キーワード(和)
キーワード(英) Coordinated Multi-Point transmission / LTE-Advanced / Joint transmission / CSI feedback
資料番号 RCS2012-25
発行日

研究会情報
研究会 RCS
開催期間 2012/5/10(から1日開催)
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開催地(英)
テーマ(和)
テーマ(英)
委員長氏名(和)
委員長氏名(英)
副委員長氏名(和)
副委員長氏名(英)
幹事氏名(和)
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幹事補佐氏名(和)
幹事補佐氏名(英)

講演論文情報詳細
申込み研究会 Radio Communication Systems (RCS)
本文の言語 ENG
タイトル(和)
サブタイトル(和)
タイトル(英) A study on CSI feedback to support Coordinated Multi-point operation for LTE-Advanced system
サブタイトル(和)
キーワード(1)(和/英) / Coordinated Multi-Point transmission
第 1 著者 氏名(和/英) / Masayuki Hoshino
第 1 著者 所属(和/英)
Tokyo R&D Center, Panasonic Corporation
発表年月日 2012-05-17
資料番号 RCS2012-25
巻番号(vol) vol.112
号番号(no) 29
ページ範囲 pp.-
ページ数 6
発行日