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Title:
受信器
Document Type and Number:
Japanese Patent JP5184690
Kind Code:
B1
Abstract:
The IRC receiver 10 according to the present invention includes a channel estimation unit 11 that performs a channel estimation process so as to estimate a channel matrix H, a transmission weight matrix generation unit 13 that generates a transmission weight matrix W Tx , a covariance matrix estimation unit 12 that estimates an interference signal covariance matrix (I) including a covariance matrix R I+N and an interference signal component on the basis of CRS, an IRC reception weight generation unit 14 that generates an IRC reception weight W IRC on the basis of the channel matrix H, the transmission weight matrix W Tx , and the covariance matrix R I+N , and a received SINR estimation unit 15 that estimates received SINR on the basis of the channel matrix H, the interference signal covariance matrix (I), the transmission weight matrix W Tx , and the IRC reception weight W IRC .

Inventors:
Yusuke Owatari
Nobuhiko Miki
Yuta Sagae
Tetsuji Abe
Application Number:
JP2011242910A
Publication Date:
April 17, 2013
Filing Date:
November 04, 2011
Export Citation:
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Assignee:
NTT DoCoMo, Inc.
International Classes:
H04J99/00; H04B7/04
Domestic Patent References:
JP2006319959A
JP2004248075A
Other References:
Renesas Mobile Europe Ltd.,Interference aware receiver modeling at system level,3GPP TSG-RAN WG1#65,2011年 5月 9日,R1-111562
NTT DOCOMO,Reference receiver structure for interference mitigation on Enhanced performance requirement for LTE UE,3GPP TSG-RAN WG4#60Bis,2011年10月10日,R4-115213
NTT DOCOMO,Influence of Channel Estimation Error on MMSE-IRC Receiver,3GPP TSG-RAN WG1#65,2011年 5月 9日,R1-111639
大渡裕介、三木信彦、浅井孝浩、阿部哲士、田岡秀和,LTE-Advanced下りリンクにおけるセル間干渉を抑圧する受信器に関する検討,電子情報通信学会技術研究報告,日本,一般社団法人電子情報通信学会,2011年 7月14日,RCS2011-80
大渡裕介、三木信彦、阿部哲士、田岡秀和,LTE-Advanced下りリンクにおけるセル間非同期環境下のセル間干渉を抑圧する受信器に関する検討,電子情報通信学会技術研究報告,日本,一般社団法人電子情報通信学会,2011年10月19日,RCS2011-186
Yusuke Ohwatari, Nobihiko Miki, Takahiro Asai, Tetsushi Abe, Hidekazu Taoka,Performance of Advanced Receiver Employing Interference Rejection Combining to Suppress Inter-Cell Interference in LTE-Advanced Downlink,Vehicular Technology Conference (VTC Fall), 2011 IEEE,IEEE,2011年 9月 5日
Attorney, Agent or Firm:
Hidekazu Miyoshi
Iwa Saki Kokuni
Masakazu Ito
Shunichi Takahashi
Ichitaro Ito
Hiroyuki Hashimoto