JP4476031B2 - 干渉低減装置及び干渉低減方法 - Google Patents

干渉低減装置及び干渉低減方法 Download PDF

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Publication number
JP4476031B2
JP4476031B2 JP2004173793A JP2004173793A JP4476031B2 JP 4476031 B2 JP4476031 B2 JP 4476031B2 JP 2004173793 A JP2004173793 A JP 2004173793A JP 2004173793 A JP2004173793 A JP 2004173793A JP 4476031 B2 JP4476031 B2 JP 4476031B2
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Japan
Prior art keywords
timing
interference
despreading
despread
base station
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Expired - Fee Related
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JP2004173793A
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English (en)
Japanese (ja)
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JP2005354459A5 (enExample
JP2005354459A (ja
Inventor
昌彦 清水
剛 長谷川
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Fujitsu Ltd
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Fujitsu Ltd
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Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP2004173793A priority Critical patent/JP4476031B2/ja
Priority to EP20080100721 priority patent/EP1926219B1/en
Priority to EP20040257311 priority patent/EP1605602B1/en
Priority to DE200460031591 priority patent/DE602004031591D1/de
Priority to US10/999,684 priority patent/US7526012B2/en
Publication of JP2005354459A publication Critical patent/JP2005354459A/ja
Publication of JP2005354459A5 publication Critical patent/JP2005354459A5/ja
Application granted granted Critical
Publication of JP4476031B2 publication Critical patent/JP4476031B2/ja
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7113—Determination of path profile
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/7103—Interference-related aspects the interference being multiple access interference
    • H04B1/7107—Subtractive interference cancellation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
    • H04B1/712—Weighting of fingers for combining, e.g. amplitude control or phase rotation using an inner loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70702—Intercell-related aspects

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Noise Elimination (AREA)
JP2004173793A 2004-06-11 2004-06-11 干渉低減装置及び干渉低減方法 Expired - Fee Related JP4476031B2 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2004173793A JP4476031B2 (ja) 2004-06-11 2004-06-11 干渉低減装置及び干渉低減方法
EP20080100721 EP1926219B1 (en) 2004-06-11 2004-11-25 Interference reduction apparatus and method
EP20040257311 EP1605602B1 (en) 2004-06-11 2004-11-25 Interference reduction apparatus and method
DE200460031591 DE602004031591D1 (de) 2004-06-11 2004-11-25 Interferenzverminderung-Vorrichtung und -Verfahren
US10/999,684 US7526012B2 (en) 2004-06-11 2004-11-30 Interference reduction apparatus and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004173793A JP4476031B2 (ja) 2004-06-11 2004-06-11 干渉低減装置及び干渉低減方法

Publications (3)

Publication Number Publication Date
JP2005354459A JP2005354459A (ja) 2005-12-22
JP2005354459A5 JP2005354459A5 (enExample) 2008-02-28
JP4476031B2 true JP4476031B2 (ja) 2010-06-09

Family

ID=34930838

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004173793A Expired - Fee Related JP4476031B2 (ja) 2004-06-11 2004-06-11 干渉低減装置及び干渉低減方法

Country Status (4)

Country Link
US (1) US7526012B2 (enExample)
EP (2) EP1926219B1 (enExample)
JP (1) JP4476031B2 (enExample)
DE (1) DE602004031591D1 (enExample)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4583265B2 (ja) * 2005-07-21 2010-11-17 富士通株式会社 無線通信装置及び無線通信方法
JP4774306B2 (ja) * 2006-02-02 2011-09-14 富士通株式会社 干渉低減受信装置及びその方法
GB2442263B (en) * 2006-09-26 2011-03-09 Iti Scotland Ltd Uwb apparatus and method
US9113362B2 (en) * 2006-12-12 2015-08-18 At&T Mobility Ii Llc Method and apparatus to separate coverage limited and co-channel limited interferences
WO2008136079A1 (ja) 2007-04-20 2008-11-13 Fujitsu Limited イコライザの制御装置及び制御方法並びに前記制御装置をそなえた無線端末
US8520559B2 (en) * 2008-04-02 2013-08-27 Alcatel Lucent Method for routing via access terminals
US8675550B2 (en) * 2008-06-14 2014-03-18 Alcatel Lucent Method for backhaul interference management with access terminal router
US8670432B2 (en) * 2009-06-22 2014-03-11 Qualcomm Incorporated Methods and apparatus for coordination of sending reference signals from multiple cells
US9401784B2 (en) 2009-10-21 2016-07-26 Qualcomm Incorporated Time and frequency acquisition and tracking for OFDMA wireless systems
US10111111B2 (en) 2009-11-19 2018-10-23 Qualcomm Incorporated Per-cell timing and/or frequency acquisition and their use on channel estimation in wireless networks
JP6070417B2 (ja) * 2013-05-29 2017-02-01 富士通株式会社 無線通信装置、重み係数演算方法、および重み係数演算プログラム
CN107431525B (zh) * 2015-02-17 2020-07-28 三菱电机株式会社 接收装置和接收方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6067292A (en) * 1996-08-20 2000-05-23 Lucent Technologies Inc Pilot interference cancellation for a coherent wireless code division multiple access receiver
US6175587B1 (en) * 1997-12-30 2001-01-16 Motorola, Inc. Communication device and method for interference suppression in a DS-CDMA system
US6678313B1 (en) * 1998-12-25 2004-01-13 Kokusai Electric Co., Ltd. Correlation circuit for spread spectrum communication
US6680727B2 (en) * 2000-10-17 2004-01-20 Qualcomm Incorporated Method and apparatus for canceling pilot interference in a CDMA communication system
US20030072282A1 (en) * 2001-10-17 2003-04-17 Ying-Chang Liang Code division multiple access downlink receiver
JP3813490B2 (ja) 2001-10-30 2006-08-23 富士通株式会社 スペクトラム拡散レイク受信機
DE60233445D1 (de) * 2002-09-13 2009-10-01 Fujitsu Ltd Spreizspektrum-rake-empfänger

Also Published As

Publication number Publication date
EP1926219B1 (en) 2012-03-07
DE602004031591D1 (de) 2011-04-14
US7526012B2 (en) 2009-04-28
JP2005354459A (ja) 2005-12-22
EP1605602A1 (en) 2005-12-14
EP1926219A1 (en) 2008-05-28
US20050276315A1 (en) 2005-12-15
EP1605602B1 (en) 2011-03-02

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