| Presentation | 2012-05-17 A study on CSI feedback to support Coordinated Multi-point operation for LTE-Advanced system Masayuki Hoshino, Jing Li, Tomohumi Takata, Hui Tong, Akihiko Nishio, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | 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. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Coordinated Multi-Point transmission / LTE-Advanced / Joint transmission / CSI feedback |
| Paper # | RCS2012-25 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2012/5/10(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A study on CSI feedback to support Coordinated Multi-point operation for LTE-Advanced system |
| Sub Title (in English) | |
| Keyword(1) | Coordinated Multi-Point transmission |
| Keyword(2) | LTE-Advanced |
| Keyword(3) | Joint transmission |
| Keyword(4) | CSI feedback |
| 1st Author's Name | Masayuki Hoshino |
| 1st Author's Affiliation | Tokyo R&D Center, Panasonic Corporation() |
| 2nd Author's Name | Jing Li |
| 2nd Author's Affiliation | Panasonic Beijing Laboratory, Panasonic R&D Center China Co. Ltd. |
| 3rd Author's Name | Tomohumi Takata |
| 3rd Author's Affiliation | Panasonic Mobile Communications R&D Lab. Co.,Ltd |
| 4th Author's Name | Hui Tong |
| 4th Author's Affiliation | Panasonic Beijing Laboratory, Panasonic R&D Center China Co. Ltd. |
| 5th Author's Name | Akihiko Nishio |
| 5th Author's Affiliation | Tokyo R&D Center, Panasonic Corporation |
| Date | 2012-05-17 |
| Paper # | RCS2012-25 |
| Volume (vol) | vol.112 |
| Number (no) | 29 |
| Page | pp.pp.- |
| #Pages | 6 |
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