Presentation 2012-12-13
Interference Measurement Scheme for COMP in LTE-Advanced Downlink
Satoshi Nagata, Xi Wei, Yun Xiang, Yoshihisa Kishiyama, Lan Chen,
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Abstract(in English) Coordinated multi-point (CoMP) transmission and reception is considered to be a promising technology to improve the cell-edge user throughput by mitigating the inter-cell interference, and it is expected to be specified in long-term evolution (LTE) Release 11 in 3GPP. For CoMP, the channel state information (CSI) feedback mechanism is a key factor in achieving a better throughput performance gain. This paper proposes two interference measurement schemes for CoMP in the LTE-Advanced downlink. In the proposed schemes, the existing CSI reference signal, which is used for CSI measurement, is fully utilized considering the impact to legacy user equipment, and a sufficient number of configurations for interference measurement resources are established to facilitate operator cell-planning efforts. Based on multi-cell link level and system-level simulations, we also confirm that the proposed schemes achieve an accurate interference measurement for a single transmission point and CoMP operation.
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Keyword(in English) LTE-Advanced / coordinated multi-point transmission / channel quality indicator / interference measurement
Paper # RCS2012-187
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Committee RCS
Conference Date 2012/12/6(1days)
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Registration To Radio Communication Systems (RCS)
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Interference Measurement Scheme for COMP in LTE-Advanced Downlink
Sub Title (in English)
Keyword(1) LTE-Advanced
Keyword(2) coordinated multi-point transmission
Keyword(3) channel quality indicator
Keyword(4) interference measurement
1st Author's Name Satoshi Nagata
1st Author's Affiliation Radio Access Network Development Department, NTT DOCOMO, INC.()
2nd Author's Name Xi Wei
2nd Author's Affiliation DOCOMO Beijing Communications Laboratories
3rd Author's Name Yun Xiang
3rd Author's Affiliation DOCOMO Beijing Communications Laboratories
4th Author's Name Yoshihisa Kishiyama
4th Author's Affiliation adio Access Network Development Department, NTT DOCOMO, INC.
5th Author's Name Lan Chen
5th Author's Affiliation DOCOMO Beijing Communications Laboratories
Date 2012-12-13
Paper # RCS2012-187
Volume (vol) vol.112
Number (no) 351
Page pp.pp.-
#Pages 8
Date of Issue