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(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 |
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研究会 | RCS |
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開催期間 | 2012/5/10(から1日開催) |
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申込み研究会 | Radio Communication Systems (RCS) |
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本文の言語 | ENG |
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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 |
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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 |