Presentation 2012-08-30
A study on CSI feedback and user allocation scheme to support dynamic point selection with blanking for LTE-Advanced system
Masayuki HOSHINO, Yasuaki YUDA, Tomohumi TAKATA, Akihiko NISHIO,
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Abstract(in English) In this paper, we investigate user allocation scheme to support coordinated multi-point (CoMP) operation for Long-Term Evolution (LTE)-Advanced systems studied in the 3rd Generation Partnership Project (3GPP). CoMP, which improves cooperative transmission among network nodes (transmission points: TPs) and reduces or eliminates inter-TP interference, enables performance improvement mainly in cell edge throughputs. We employ dynamic point selection with blanking as CoMP scheme, which requires both a) efficient CSI reporting scheme to avoid additional CSI reporting overhead and b) further analysis of Proportional Fairness (PF) metric calculation with maintaining PF criteria. To this end, we propose i) to use CSI estimation assumption which can be applicable for with or without blanking and ii) to apply weighting factor in accordance with resources blanking is applied. To evaluate the benefits of this algorithm, multi-cell system level simulations accounting channel estimation error are carried out. This confirms improved algorithm enables to maintain fairness and to achieve excellent performance for dynamic point selection with blanking.
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Keyword(in English) LTE-Advanced / MIMO / Coordinated Multi-point Transmission / Dynamic point selection / Blanking / Feedback
Paper # RCS2012-98
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Committee RCS
Conference Date 2012/8/23(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A study on CSI feedback and user allocation scheme to support dynamic point selection with blanking for LTE-Advanced system
Sub Title (in English)
Keyword(1) LTE-Advanced
Keyword(2) MIMO
Keyword(3) Coordinated Multi-point Transmission
Keyword(4) Dynamic point selection
Keyword(5) Blanking
Keyword(6) Feedback
1st Author's Name Masayuki HOSHINO
1st Author's Affiliation Tokyo R&D Center Panasonic Corporation()
2nd Author's Name Yasuaki YUDA
2nd Author's Affiliation Tokyo R&D Center Panasonic Corporation
3rd Author's Name Tomohumi TAKATA
3rd Author's Affiliation Panasonic Mobile Communications R&D Lab. Co.,Ltd
4th Author's Name Akihiko NISHIO
4th Author's Affiliation Tokyo R&D Center Panasonic Corporation
Date 2012-08-30
Paper # RCS2012-98
Volume (vol) vol.112
Number (no) 192
Page pp.pp.-
#Pages 6
Date of Issue