KR100781415B1 - 스펙트럼 확산잡음을 저감하기 위한 방법 및 장치 - Google Patents

스펙트럼 확산잡음을 저감하기 위한 방법 및 장치 Download PDF

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Publication number
KR100781415B1
KR100781415B1 KR1019997008755A KR19997008755A KR100781415B1 KR 100781415 B1 KR100781415 B1 KR 100781415B1 KR 1019997008755 A KR1019997008755 A KR 1019997008755A KR 19997008755 A KR19997008755 A KR 19997008755A KR 100781415 B1 KR100781415 B1 KR 100781415B1
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South Korea
Prior art keywords
signal
user data
effect
pilot signal
data signal
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Expired - Fee Related
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KR1019997008755A
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Korean (ko)
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KR20010005687A (ko
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다니엘옐린
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디에스피씨 테크놀러지 리미티드
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • 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
    • 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
    • H04B2201/70701—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
KR1019997008755A 1997-03-26 1998-03-23 스펙트럼 확산잡음을 저감하기 위한 방법 및 장치 Expired - Fee Related KR100781415B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IL12053897A IL120538A (en) 1997-03-26 1997-03-26 Method and apparatus for reducing spread-spectrum noise
IL120538 1997-03-26
PCT/IL1998/000129 WO1998043362A2 (en) 1997-03-26 1998-03-23 Method and apparatus for reducing spread-spectrum noise

Publications (2)

Publication Number Publication Date
KR20010005687A KR20010005687A (ko) 2001-01-15
KR100781415B1 true KR100781415B1 (ko) 2007-12-03

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ID=11069967

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KR1019997008755A Expired - Fee Related KR100781415B1 (ko) 1997-03-26 1998-03-23 스펙트럼 확산잡음을 저감하기 위한 방법 및 장치

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Country Link
US (1) US6034986A (enExample)
EP (1) EP0970573A4 (enExample)
JP (1) JP4177901B2 (enExample)
KR (1) KR100781415B1 (enExample)
AU (1) AU6417498A (enExample)
CA (1) CA2283848A1 (enExample)
IL (1) IL120538A (enExample)
WO (1) WO1998043362A2 (enExample)

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US6798737B1 (en) 1999-10-06 2004-09-28 Texas Instruments Incorporated Use of Walsh-Hadamard transform for forward link multiuser detection in CDMA systems
US6563812B1 (en) * 1999-10-12 2003-05-13 Mitsubishi Electric Research Laboratories, Inc. Method and apparatus for detecting multiple signals in a CDMA network
US6665288B1 (en) 1999-11-08 2003-12-16 Ericsson Inc. Method and apparatus for reducing synchronization code interference in CDMA communications systems
WO2001035541A2 (de) * 1999-11-11 2001-05-17 Siemens Aktiengesellschaft Verfahren zum decodieren eines spreizcodierten signals sowie entsprechende decodiervorrichtung
US6603823B1 (en) * 1999-11-12 2003-08-05 Intel Corporation Channel estimator
EP1117186A1 (en) * 2000-01-14 2001-07-18 Lucent Technologies Inc. Adaptive code-tracking RAKE receiver for direct-sequence code-division multiple access (cdma) communications
EP1117185A1 (en) * 2000-01-14 2001-07-18 Lucent Technologies Inc. Method and rake receiver for code-tracking in CDMA communication systems
EP1128564A1 (en) * 2000-02-28 2001-08-29 Lucent Technologies Inc. Multi-user detection CDMA receivers in mobile telecommunications systems
EP1130792A1 (en) * 2000-03-03 2001-09-05 Lucent Technologies Inc. A method and rake receiver for phasor estimation in communication systems
ATE269607T1 (de) 2000-04-07 2004-07-15 Cit Alcatel Empfänger für ein cdma mobilfunkkommunikationssystem
US7065055B1 (en) * 2000-05-26 2006-06-20 Telefonaktiebolaget Lm Ericsson (Publ) Zero delay interference cancellation
US6618433B1 (en) 2000-08-04 2003-09-09 Intel Corporation Family of linear multi-user detectors (MUDs)
CA2323164A1 (en) * 2000-10-11 2002-04-11 Ramesh Mantha Method, system and apparatus for improving reception in multiple access communication systems
US6680727B2 (en) * 2000-10-17 2004-01-20 Qualcomm Incorporated Method and apparatus for canceling pilot interference in a CDMA communication system
GB2369018A (en) * 2000-11-10 2002-05-15 Ubinetics Ltd Control channel interference cancellation for a CDMA receiver
US6865218B1 (en) * 2000-11-27 2005-03-08 Ericsson Inc. Multipath interference reduction for a CDMA system
JP2002232397A (ja) * 2001-01-31 2002-08-16 Ntt Docomo Inc 移動通信システムにおける受信処理方法及び受信装置
WO2002073937A2 (en) * 2001-03-14 2002-09-19 Mercury Computer Systems, Inc. Wireless communications methods and systems for long-code and other spread spectrum waveform processing
US7697594B2 (en) * 2001-03-30 2010-04-13 Texas Instruments Incorporated Method and apparatus for regenerative based interference cancellation within a communication system
US6996159B2 (en) * 2001-05-17 2006-02-07 Intel Corporation Reducing spread spectrum noise
JP3345406B1 (ja) * 2001-05-25 2002-11-18 松下電器産業株式会社 無線受信装置及び無線受信方法
US8611311B2 (en) * 2001-06-06 2013-12-17 Qualcomm Incorporated Method and apparatus for canceling pilot interference in a wireless communication system
US7190749B2 (en) * 2001-06-06 2007-03-13 Qualcomm Incorporated Method and apparatus for canceling pilot interference in a wireless communication system
US7450631B2 (en) * 2001-10-26 2008-11-11 Intel Corporation Metric correction for multi user detection, for long codes DS-CDMA
US6661809B2 (en) 2001-11-14 2003-12-09 Motorola, Inc. Methods and communications terminals for increasing capacity CDMA communications networks
US7042926B2 (en) * 2001-11-21 2006-05-09 Intel Corporation Low complexity multiuser detector
JP2003174400A (ja) * 2001-12-06 2003-06-20 Ntt Docomo Inc 移動通信端末、干渉除去システム、干渉除去方法、及び基地局
SG114534A1 (en) * 2002-03-12 2005-09-28 Oki Techno Ct Singapore Pte Reduced-complexity multipath interference cancellation
US7406065B2 (en) * 2002-03-14 2008-07-29 Qualcomm, Incorporated Method and apparatus for reducing inter-channel interference in a wireless communication system
EP1537680B1 (en) * 2002-08-29 2012-03-07 Zyray Wireless, Inc. Adaptive pilot interference cancellation in cdma systems
KR20050043945A (ko) * 2002-09-13 2005-05-11 코닌클리즈케 필립스 일렉트로닉스 엔.브이. 정보 코딩 방법 및 이를 수행하는 전자 회로
US7215705B2 (en) * 2003-03-17 2007-05-08 Intel Corporation Reducing phase noise in phase-encoded communications signals
CN1806395A (zh) * 2003-05-23 2006-07-19 阿克西奥康姆股份有限公司 利用导频抵消均衡的系统
WO2005011167A1 (ja) * 2003-07-29 2005-02-03 Fujitsu Limited Ofdmシステムにおけるパイロット多重方法及び送受信装置
US7428260B2 (en) * 2003-10-30 2008-09-23 Marvell World Trade Ltd. Unified MMSE equalization and multi-user detection approach for use in a CDMA system
JP2005354255A (ja) * 2004-06-09 2005-12-22 Fujitsu Ltd 干渉除去装置及び干渉除去方法
US8422955B2 (en) * 2004-12-23 2013-04-16 Qualcomm Incorporated Channel estimation for interference cancellation
US8099123B2 (en) * 2004-12-23 2012-01-17 Qualcomm Incorporated Adaptation of transmit subchannel gains in a system with interference cancellation
US8406695B2 (en) * 2004-12-23 2013-03-26 Qualcomm Incorporated Joint interference cancellation of pilot, overhead and traffic channels
US8442441B2 (en) * 2004-12-23 2013-05-14 Qualcomm Incorporated Traffic interference cancellation
US7986680B2 (en) * 2005-04-28 2011-07-26 Qualcomm Incorporated Transmit format selection with consideration for resource reuse
US20070071145A1 (en) * 2005-09-23 2007-03-29 Yona Perets Method and apparatus to correct channel quality indicator estimation
US8472877B2 (en) * 2005-10-24 2013-06-25 Qualcomm Incorporated Iterative interference cancellation system and method
US8385388B2 (en) * 2005-12-06 2013-02-26 Qualcomm Incorporated Method and system for signal reconstruction from spatially and temporally correlated received samples
US20070165704A1 (en) * 2006-01-19 2007-07-19 Lucent Technologies Inc. Method for auxiliary pilot cancellation in wireless network reverse link
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US9344303B1 (en) 2012-01-04 2016-05-17 Marvell International Ltd. Adaptive signal covariance estimation for MMSE equalization
US9660743B1 (en) 2014-08-27 2017-05-23 Marvell International Ltd. Channel estimation by searching over channel response candidates having dominant components
CN113791006B (zh) * 2021-09-13 2022-10-11 长春理工大学 环境干扰抑制的大气颗粒物穆勒矩阵测量系统

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Also Published As

Publication number Publication date
JP4177901B2 (ja) 2008-11-05
EP0970573A2 (en) 2000-01-12
IL120538A (en) 2000-11-21
CA2283848A1 (en) 1998-10-01
IL120538A0 (en) 1997-07-13
EP0970573A4 (en) 2000-05-17
KR20010005687A (ko) 2001-01-15
WO1998043362A2 (en) 1998-10-01
US6034986A (en) 2000-03-07
AU6417498A (en) 1998-10-20
WO1998043362A3 (en) 1999-02-11
JP2001523408A (ja) 2001-11-20

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