Presentation	2012-11-16 A Study on Feedback Information for Coordinated Beamforming Multi-Cell Coordination for LTE-Advanced System Atsuhisa INAKOSHI, Takahiro SAIWAI, Chiharu YAMAZAKI, Kugo MORITA, Fangwei TONG, Tetsuya YUDA,
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Abstract(in English)	Coordinated Multi Point (CoMP) has been standardized as an important factor of LTE-Advanced in 3^ Generation Partnership Project (3GPP) in order to improve cell-edge throughput performance. Coordinated Beamforming CoMP(CB CoMP), where a strongly interfering cell coordinates its transmit precoder so as to minimize the interference to CoMP User Equipment (CoMP UE), has been studied as a candidate of CoMP scheme, and Best Companion Precoding Matrix Indicator (BCI) was proposed as a Channel State Information (CSI) feedback from CoMP UE for CB CoMP. However, system performance might be deteriorated if the feedbacked BCI is not effectively used at the interfering cell. In this paper, we propose multiple BCI feedback in order to improve system performance by increasing degree of freedom of scheduling at the interfering cell. We also carry out the theoretical analysis and the system level simulation to evaluate the throughput performance with the proposed feedback and the simulation results confirm the effectiveness of the proposal.
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Keyword(in English)	LTE-Advanced / CoMP / Coordinated Beamforming / Feedback
Paper #	RCS2012-178
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Committee	RCS
Conference Date	2012/11/8(1days)
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Paper Information
Registration To	Radio Communication Systems (RCS)
Language	JPN
Title (in Japanese)	(See Japanese page)
Sub Title (in Japanese)	(See Japanese page)
Title (in English)	A Study on Feedback Information for Coordinated Beamforming Multi-Cell Coordination for LTE-Advanced System
Sub Title (in English)
Keyword(1)	LTE-Advanced
Keyword(2)	CoMP
Keyword(3)	Coordinated Beamforming
Keyword(4)	Feedback
1st Author's Name	Atsuhisa INAKOSHI
1st Author's Affiliation	Corporate Communication Equipment R&D Division, KYOCERA Corporation()
2nd Author's Name	Takahiro SAIWAI
2nd Author's Affiliation	Corporate Communication Equipment R&D Division, KYOCERA Corporation
3rd Author's Name	Chiharu YAMAZAKI
3rd Author's Affiliation	Corporate Communication Equipment R&D Division, KYOCERA Corporation
4th Author's Name	Kugo MORITA
4th Author's Affiliation	Corporate Communication Equipment R&D Division, KYOCERA Corporation
5th Author's Name	Fangwei TONG
5th Author's Affiliation	Corporate Communication Equipment R&D Division, KYOCERA Corporation
6th Author's Name	Tetsuya YUDA
6th Author's Affiliation	Corporate Communication Equipment R&D Division, KYOCERA Corporation
Date	2012-11-16
Paper #	RCS2012-178
Volume (vol)	vol.112
Number (no)	286
Page	pp.pp.-
#Pages	6
Date of Issue