講演抄録/キーワード |
講演名 |
2012-05-17 10:40
A study on CSI feedback to support Coordinated Multi-point operation for LTE-Advanced system ○Masayuki Hoshino(Panasonic)・Jing Li(Panasonic R&D Center China)・Tomohumi Takata(Panasonic Mobile Communications R&D Lab.)・Hui Tong(Panasonic R&D Center China)・Akihiko Nishio(Panasonic) RCS2012-25 |
抄録 |
(和) |
(まだ登録されていません) |
(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) |
/ / / / / / / |
(英) |
Coordinated Multi-Point transmission / LTE-Advanced / Joint transmission / CSI feedback / / / / |
文献情報 |
信学技報, vol. 112, no. 29, RCS2012-25, pp. 19-24, 2012年5月. |
資料番号 |
RCS2012-25 |
発行日 |
2012-05-10 (RCS) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
PDFダウンロード |
RCS2012-25 |
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