Title:
受信機処理システム
Document Type and Number:
Japanese Patent JP3981082
Kind Code:
B2
Abstract:
Space-time transmit diversity spread spectrum receiver architectures and methods are described for reducing interference, particularly the interference observed at a user-end terminal in a W-CDMA 3G mobile communications system. Interpath interference which arises due to non-zero cross and auto correlation of more than one spreading code is suppressed by estimating a transmitted signal stream, or a plurality of such signal streams in the case of a plurality of multipath components, respreading this estimated signal and subtracting non-orthogonal interference contributions from a received signal. The techniques provide an improved bit error rate or equivalently, enhanced capacity for a digital mobile communications network.
Inventors:
Fitton, Michael Philip
Application Number:
JP2003563115A
Publication Date:
September 26, 2007
Filing Date:
January 24, 2003
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
H04B1/707; H04B7/02; H04B7/06; H04B7/08; H04B7/26; H04B17/00; H04L1/06; H04W16/28; H04W88/02
Domestic Patent References:
| JP2001339326A | ||||
| JP10322312A | ||||
| JP10327126A | ||||
| JP2001267982A |
Other References:
NTT DoCoMo,Complexity Analysis on MPIC for HSPDA,TSG-RAN Working Group 1 Meeting #19 TSGR#19(01)0329,3GPP,2001年 3月 2日,URL,http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_19/Docs/Zips/R1-01-0329.zip
NTT DoCoMo,Multipath Interference Canceller(MPIC) for HSDPA and Effect of 64 QAM Data Modulation,TSG-RAN Working Group 1 Meeting #18 TSGR#18(01)0102,3GPP,2001年 1月18日,URL,http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_18/Docs/Zips/R1-01-0102.zip
藤原 昭博 外2名,適応変復調を用いるW-CDMA高速パケット伝送における高精度リンクアダプテーションを実現するフレーム構成,2001年電子情報通信学会総合大会講演論文集 通信1,2001年 3月 7日,p.427,B-5-29
NTT DoCoMo,Multipath Interference Canceller(MPIC) for HSDPA and Effect of 64 QAM Data Modulation,TSG-RAN Working Group 1 Meeting #18 TSGR#18(01)0102,3GPP,2001年 1月18日,URL,http://www.3gpp.org/ftp/tsg_ran/WG1_RL1/TSGR1_18/Docs/Zips/R1-01-0102.zip
藤原 昭博 外2名,適応変復調を用いるW-CDMA高速パケット伝送における高精度リンクアダプテーションを実現するフレーム構成,2001年電子情報通信学会総合大会講演論文集 通信1,2001年 3月 7日,p.427,B-5-29
Attorney, Agent or Firm:
Takehiko Suzue
Sadao Muramatsu
Ryo Hashimoto
Satoshi Kono
Makoto Nakamura
Sadao Muramatsu
Ryo Hashimoto
Satoshi Kono
Makoto Nakamura