SG105560A1 - Parallel interference cancellation receiver for multiuser detection of cdma signals - Google Patents

Parallel interference cancellation receiver for multiuser detection of cdma signals

Info

Publication number
SG105560A1
SG105560A1 SG200205632A SG200205632A SG105560A1 SG 105560 A1 SG105560 A1 SG 105560A1 SG 200205632 A SG200205632 A SG 200205632A SG 200205632 A SG200205632 A SG 200205632A SG 105560 A1 SG105560 A1 SG 105560A1
Authority
SG
Singapore
Prior art keywords
matrix
interference cancellation
communication signals
received
cdma signals
Prior art date
Application number
SG200205632A
Other languages
English (en)
Inventor
Alexander Reznik
Original Assignee
Interdigital Tech Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Interdigital Tech Corp filed Critical Interdigital Tech Corp
Publication of SG105560A1 publication Critical patent/SG105560A1/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7097Interference-related aspects
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7097Interference-related aspects
    • H04B1/7103Interference-related aspects the interference being multiple access interference
    • H04B1/7107Subtractive interference cancellation
    • H04B1/71075Parallel interference cancellation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7097Interference-related aspects
    • H04B1/7103Interference-related aspects the interference being multiple access interference
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7097Interference-related aspects
    • H04B1/7103Interference-related aspects the interference being multiple access interference
    • H04B1/7105Joint detection techniques, e.g. linear detectors
    • H04B1/71052Joint detection techniques, e.g. linear detectors using decorrelation matrix
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/709Correlator structure
    • H04B1/7093Matched filter type
SG200205632A 1999-10-19 2000-02-11 Parallel interference cancellation receiver for multiuser detection of cdma signals SG105560A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16025999P 1999-10-19 1999-10-19

Publications (1)

Publication Number Publication Date
SG105560A1 true SG105560A1 (en) 2004-08-27

Family

ID=22576167

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200205632A SG105560A1 (en) 1999-10-19 2000-02-11 Parallel interference cancellation receiver for multiuser detection of cdma signals

Country Status (15)

Country Link
US (3) US6724809B2 (zh)
EP (1) EP1222746B9 (zh)
JP (1) JP2003512759A (zh)
KR (2) KR100473215B1 (zh)
CN (3) CN1921323A (zh)
AT (1) ATE329414T1 (zh)
AU (1) AU2990700A (zh)
CA (1) CA2388024C (zh)
DE (1) DE60028592T2 (zh)
ES (1) ES2261184T3 (zh)
HK (1) HK1054824A1 (zh)
MX (1) MXPA02003903A (zh)
NO (1) NO20021809L (zh)
SG (1) SG105560A1 (zh)
WO (1) WO2001029983A1 (zh)

Families Citing this family (118)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6714527B2 (en) * 1999-09-21 2004-03-30 Interdigital Techology Corporation Multiuser detector for variable spreading factors
KR100473215B1 (ko) * 1999-10-19 2005-03-10 인터디지탈 테크날러지 코포레이션 다중 사용자의 cdma 신호 검출용 수신기
JP2003524338A (ja) * 2000-02-22 2003-08-12 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ チャネル予測器を有するマルチチャネル受信機
KR100372884B1 (ko) * 2000-12-19 2003-02-19 한국전자통신연구원 다중전송속도를 갖는 코드분할다중접속시스템의 감산형간섭제거장치 및 방법
US7636403B2 (en) * 2001-02-20 2009-12-22 Massachusetts Institute Of Technology Correlation shaping multi-signature receiver
US7751469B2 (en) * 2001-02-20 2010-07-06 Massachusetts Institute Of Technology Correlation shaping matched filter receiver
JP2004519900A (ja) * 2001-02-22 2004-07-02 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 軽減された計算量リーク行列乗算部を備えるマルチキャリア伝送システム
WO2002067525A2 (en) * 2001-02-22 2002-08-29 Koninklijke Philips Electronics N.V. Intercarrier interference cancellation in multicarrier receivers
JP4164364B2 (ja) * 2001-02-22 2008-10-15 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 複雑さが低減したチャンネル応答推定を有するマルチキャリヤ伝送システム
US7158563B2 (en) 2001-06-01 2007-01-02 The Board Of Trustees Of The Leland Stanford Junior University Dynamic digital communication system control
KR100383594B1 (ko) * 2001-06-01 2003-05-14 삼성전자주식회사 통신시스템의 하방향링크 공동검출 방법 및 장치
US7298785B2 (en) * 2001-07-04 2007-11-20 Kabushiki Kaisha Toyota Chuo Kenkyusho Multicarrier demodulation method and apparatus, and multicarrier modulation method and apparatus
EP1289162A3 (en) * 2001-08-28 2003-06-25 Texas Instruments Incorporated Combined equalizer and spread spectrum interference canceller method and implementation for the downlink of CDMA systems
US9236902B2 (en) 2001-08-28 2016-01-12 Texas Instruments Incorporated Combined equalizer and spread spectrum interference canceller method and implementation for the downlink of CDMA systems
US7158559B2 (en) * 2002-01-15 2007-01-02 Tensor Comm, Inc. Serial cancellation receiver design for a coded signal processing engine
US8085889B1 (en) 2005-04-11 2011-12-27 Rambus Inc. Methods for managing alignment and latency in interference cancellation
US7039136B2 (en) * 2001-11-19 2006-05-02 Tensorcomm, Inc. Interference cancellation in a signal
US7430253B2 (en) * 2002-10-15 2008-09-30 Tensorcomm, Inc Method and apparatus for interference suppression with efficient matrix inversion in a DS-CDMA system
US7394879B2 (en) * 2001-11-19 2008-07-01 Tensorcomm, Inc. Systems and methods for parallel signal cancellation
US7260506B2 (en) * 2001-11-19 2007-08-21 Tensorcomm, Inc. Orthogonalization and directional filtering
US7593357B2 (en) * 2002-03-28 2009-09-22 Interdigital Technology Corporation Transmit processing using receiver functions
WO2003090348A1 (en) * 2002-04-16 2003-10-30 Thomson Licensing S.A. Decision feedback equalizer
US7372892B2 (en) * 2002-04-29 2008-05-13 Interdigital Technology Corporation Simple and robust digital code tracking loop for wireless communication systems
US20040208238A1 (en) * 2002-06-25 2004-10-21 Thomas John K. Systems and methods for location estimation in spread spectrum communication systems
US7203181B2 (en) 2002-06-28 2007-04-10 Interdigital Technology Corporation CDMA system transmission matrix coefficient calculation
TWI335735B (en) 2002-07-19 2011-01-01 Interdigital Tech Corp Groupwise successive interference cancellation for block transmission with reception diversity
US7248651B2 (en) * 2002-08-21 2007-07-24 Texas Instruments Incorporated Low complexity high performance decoder and method of decoding for communications systems using multidimensional signaling
US7808937B2 (en) * 2005-04-07 2010-10-05 Rambus, Inc. Variable interference cancellation technology for CDMA systems
US7577186B2 (en) * 2002-09-20 2009-08-18 Tensorcomm, Inc Interference matrix construction
US8761321B2 (en) * 2005-04-07 2014-06-24 Iii Holdings 1, Llc Optimal feedback weighting for soft-decision cancellers
US20050180364A1 (en) * 2002-09-20 2005-08-18 Vijay Nagarajan Construction of projection operators for interference cancellation
US7463609B2 (en) * 2005-07-29 2008-12-09 Tensorcomm, Inc Interference cancellation within wireless transceivers
US7876810B2 (en) * 2005-04-07 2011-01-25 Rambus Inc. Soft weighted interference cancellation for CDMA systems
US7787572B2 (en) * 2005-04-07 2010-08-31 Rambus Inc. Advanced signal processors for interference cancellation in baseband receivers
US8005128B1 (en) 2003-09-23 2011-08-23 Rambus Inc. Methods for estimation and interference cancellation for signal processing
US8179946B2 (en) 2003-09-23 2012-05-15 Rambus Inc. Systems and methods for control of advanced receivers
US20050123080A1 (en) * 2002-11-15 2005-06-09 Narayan Anand P. Systems and methods for serial cancellation
KR101011942B1 (ko) * 2002-09-23 2011-01-31 램버스 인코포레이티드 확산 스펙트럼 시스템들에서 간섭 소거를 선택적으로 적용하기 위한 방법 및 장치
US7715508B2 (en) 2005-11-15 2010-05-11 Tensorcomm, Incorporated Iterative interference cancellation using mixed feedback weights and stabilizing step sizes
KR20050051702A (ko) * 2002-10-15 2005-06-01 텐솔콤 인코포레이티드 채널 진폭 추정 및 간섭 벡터 구성을 위한 방법 및 장치
AU2003290558A1 (en) * 2002-10-31 2004-06-07 Tensorcomm, Incorporated Systems and methods for reducing interference in cdma systems
US7161975B2 (en) * 2002-11-27 2007-01-09 International Business Machines Corporation Enhancing CDMA multiuser detection by constraining soft decisions
US7075973B2 (en) * 2003-03-03 2006-07-11 Interdigital Technology Corporation Multiuser detection of differing data rate signals
US7333575B2 (en) * 2003-03-06 2008-02-19 Nokia Corporation Method and apparatus for receiving a CDMA signal
TWI240509B (en) * 2003-05-13 2005-09-21 Benq Corp A simplified method of partial parallel interference cancellation
US7305052B2 (en) * 2003-05-28 2007-12-04 The Regents Of The University Of California UWB communication receiver feedback loop
US7302018B2 (en) * 2003-05-29 2007-11-27 Texas Instruments Incorporated Iterative detection in MIMO systems
KR100976707B1 (ko) * 2003-06-04 2010-08-18 엘지전자 주식회사 다중사용자 검출장치 및 검출방법
KR100976708B1 (ko) * 2003-06-04 2010-08-18 엘지전자 주식회사 다중사용자 검출장치 및 검출방법
US20050031018A1 (en) * 2003-06-27 2005-02-10 Nokia Corporation Zero-padded OFDM with improved performance over multipath channels
US7492809B2 (en) * 2003-08-19 2009-02-17 Nokia Corporation Blind speech user interference cancellation (SUIC) for high speed downlink packet access (HSDPA)
US6870502B1 (en) * 2003-08-29 2005-03-22 Raytheon Company Advanced asynchronous pulse detector
EP1531590A1 (en) * 2003-11-11 2005-05-18 STMicroelectronics Belgium N.V. Method and apparatus for channel equalisation with estimation of the channel impulse response length
US7302009B2 (en) * 2003-12-17 2007-11-27 Qualcomm Incorporated Broadcast transmission with spatial spreading in a multi-antenna communication system
US8204149B2 (en) 2003-12-17 2012-06-19 Qualcomm Incorporated Spatial spreading in a multi-antenna communication system
US7155352B2 (en) * 2003-12-31 2006-12-26 Intel Corporation Using feedback to select transmitting voltage
US7336746B2 (en) * 2004-12-09 2008-02-26 Qualcomm Incorporated Data transmission with spatial spreading in a MIMO communication system
US7477710B2 (en) * 2004-01-23 2009-01-13 Tensorcomm, Inc Systems and methods for analog to digital conversion with a signal cancellation system of a receiver
US8169889B2 (en) 2004-02-18 2012-05-01 Qualcomm Incorporated Transmit diversity and spatial spreading for an OFDM-based multi-antenna communication system
US7103073B2 (en) * 2004-02-19 2006-09-05 Advanced Fibre Communications, Inc. Optical line termination, passive optical network, and method and apparatus for performance monitoring
US7782987B2 (en) 2004-03-12 2010-08-24 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for received signal quality estimation
JP4723564B2 (ja) * 2004-03-12 2011-07-13 テレフオンアクチーボラゲット エル エム エリクソン(パブル) 受信信号品質を推定する方法および装置
CN100428640C (zh) * 2004-04-07 2008-10-22 明基电通股份有限公司 滤波器、均衡器及决策回授等化方法
US8285226B2 (en) 2004-05-07 2012-10-09 Qualcomm Incorporated Steering diversity for an OFDM-based multi-antenna communication system
US8923785B2 (en) 2004-05-07 2014-12-30 Qualcomm Incorporated Continuous beamforming for a MIMO-OFDM system
US7720134B2 (en) * 2004-05-10 2010-05-18 Stmicroelectronics S.R.L. Frequency-domain multi-user access interference cancellation and nonlinear equalization in CDMA receivers
US7110463B2 (en) * 2004-06-30 2006-09-19 Qualcomm, Incorporated Efficient computation of spatial filter matrices for steering transmit diversity in a MIMO communication system
US7978649B2 (en) * 2004-07-15 2011-07-12 Qualcomm, Incorporated Unified MIMO transmission and reception
US7978778B2 (en) * 2004-09-03 2011-07-12 Qualcomm, Incorporated Receiver structures for spatial spreading with space-time or space-frequency transmit diversity
US7894548B2 (en) * 2004-09-03 2011-02-22 Qualcomm Incorporated Spatial spreading with space-time and space-frequency transmit diversity schemes for a wireless communication system
US7551664B2 (en) * 2004-09-17 2009-06-23 Nokia Corporation Iterative and turbo-based method and apparatus for equalization of spread-spectrum downlink channels
US7856052B2 (en) 2004-10-06 2010-12-21 Broadcom Corp. Method and system for low complexity conjugate gradient based equalization in a wireless system
US20060072449A1 (en) * 2004-10-06 2006-04-06 Mark Kent Method and system for channel equalization
US20060125689A1 (en) * 2004-12-10 2006-06-15 Narayan Anand P Interference cancellation in a receive diversity system
US7826516B2 (en) * 2005-11-15 2010-11-02 Rambus Inc. Iterative interference canceller for wireless multiple-access systems with multiple receive antennas
US7711075B2 (en) 2005-11-15 2010-05-04 Tensorcomm Incorporated Iterative interference cancellation using mixed feedback weights and stabilizing step sizes
US7991088B2 (en) 2005-11-15 2011-08-02 Tommy Guess Iterative interference cancellation using mixed feedback weights and stabilizing step sizes
US20060229051A1 (en) * 2005-04-07 2006-10-12 Narayan Anand P Interference selection and cancellation for CDMA communications
US7844232B2 (en) * 2005-05-25 2010-11-30 Research In Motion Limited Joint space-time optimum filters (JSTOF) with at least one antenna, at least one channel, and joint filter weight and CIR estimation
US7733996B2 (en) * 2005-05-25 2010-06-08 Research In Motion Limited Joint space-time optimum filters (JSTOF) for interference cancellation
US20070036122A1 (en) * 2005-08-15 2007-02-15 Research In Motion Limited Joint Space-Time Optimum Filters (JSTOF) for Interference Cancellation
US20070133814A1 (en) * 2005-08-15 2007-06-14 Research In Motion Limited Joint Space-Time Optimum Filter (JSTOF) Using Cholesky and Eigenvalue Decompositions
US20070049232A1 (en) * 2005-08-15 2007-03-01 Research In Motion Limited Joint Space-Time Optimum Filter (JSTOF) Using QR and Eigenvalue Decompositions
US20070042741A1 (en) * 2005-08-15 2007-02-22 Research In Motion Limited Wireless Communications Device Including a Joint Space-Time Optimum Filters (JSTOF) Using QR and Eigenvalue Decompositions
US20070037540A1 (en) * 2005-08-15 2007-02-15 Research In Motion Limited Joint Space-Time Optimum Filters (JSTOF) Using Singular Value Decompositions (SVD)
US20070049233A1 (en) * 2005-08-15 2007-03-01 Research In Motion Limited Wireless Communications Device Including a Joint Space-Time Optimum Filters (JSTOF) Using Singular Value Decompositions (SVD)
US7623605B2 (en) * 2005-08-15 2009-11-24 Research In Motion Limited Interference canceling matched filter (ICMF) and related methods
US20070037541A1 (en) * 2005-08-15 2007-02-15 Research In Motion Limited Wireless Communications Device Including a Joint Space-Time Optimum Filter (JSTOF) Using Cholesky and Eigenvalue Decompositions
US20070036210A1 (en) * 2005-08-15 2007-02-15 Research In Motion Limited Joint Space-Time Optimum Filters (JSTOF) with at Least One Antenna, at Least One Channel, and Joint Filter Weight and CIR Estimation
US7697638B2 (en) * 2005-08-16 2010-04-13 Freescale Semiconductor, Inc. Modulation detection in a SAIC operational environment
US7643590B2 (en) * 2005-08-23 2010-01-05 Research In Motion Limited Joint demodulation filter for co-channel interference reduction and related methods
US7639763B2 (en) * 2005-08-23 2009-12-29 Research In Motion Limited Wireless communications device including a joint demodulation filter for co-channel interference reduction and related methods
US7724816B2 (en) * 2005-09-13 2010-05-25 Freescale Semiconductor, Inc. Dynamic switching between maximum likelihood sequence estimation (MLSE) and linear equalizer for single antenna interference cancellation (SAIC) in a global system for mobile communications (GSM) system
WO2007038018A2 (en) * 2005-09-23 2007-04-05 Tensorcomm, Inc. Iterative interference cancellation using mixed feedback weights and stabilizing step sizes
US7702048B2 (en) * 2005-11-15 2010-04-20 Tensorcomm, Incorporated Iterative interference cancellation using mixed feedback weights and stabilizing step sizes
US7623602B2 (en) * 2005-11-15 2009-11-24 Tensorcomm, Inc. Iterative interference canceller for wireless multiple-access systems employing closed loop transmit diversity
US20070110135A1 (en) * 2005-11-15 2007-05-17 Tommy Guess Iterative interference cancellation for MIMO-OFDM receivers
US8543070B2 (en) 2006-04-24 2013-09-24 Qualcomm Incorporated Reduced complexity beam-steered MIMO OFDM system
US7489252B2 (en) * 2006-04-26 2009-02-10 Kimberly-Clark Worldwide, Inc. Wetness monitoring systems with status notification system
US7991090B2 (en) * 2006-05-04 2011-08-02 Broadcom Corporation Method and system for reordered QRV-LST (layered space time) detection for efficient processing for multiple input multiple output (MIMO) communication systems
US8290089B2 (en) 2006-05-22 2012-10-16 Qualcomm Incorporated Derivation and feedback of transmit steering matrix
KR100843253B1 (ko) * 2006-12-01 2008-07-03 한국전자통신연구원 반복 수신 방법 및 반복 수신기
US7873098B2 (en) * 2007-04-24 2011-01-18 Telefonaktiebolaget Lm Ericsson (Publ) Robust multicode detector for HSDPA
US8068535B2 (en) * 2008-03-28 2011-11-29 Telefonaktiebolaget L M Ericsson (Publ) Robust iterative linear system solvers
US8249540B1 (en) 2008-08-07 2012-08-21 Hypres, Inc. Two stage radio frequency interference cancellation system and method
US20110311007A1 (en) * 2009-02-16 2011-12-22 Elektrobit System Test Oy Method and an Apparatus for Forming Signal Estimates
TWI382672B (zh) * 2009-07-16 2013-01-11 Ind Tech Res Inst 累進平行干擾消除器及其方法與其接收機
US9083481B2 (en) * 2009-08-17 2015-07-14 Joseph Chueh System, method and computer-readable medium for actively cancelling interfernce signals
US20110319045A1 (en) * 2010-05-05 2011-12-29 Wenjun Li Linear interference cancellation receiver
CN102035568B (zh) * 2010-11-05 2014-05-28 意法·爱立信半导体(北京)有限公司 移动通信系统中干扰消除的方法及装置
TWI404346B (zh) 2010-11-12 2013-08-01 Ind Tech Res Inst 分碼多工為基礎之多用戶偵測方法及系統及其電腦程式產品
CN102025392A (zh) * 2010-12-06 2011-04-20 意法·爱立信半导体(北京)有限公司 干扰消除方法和装置
CN102545958B (zh) 2011-12-30 2014-09-17 华为技术有限公司 信号处理单元及干扰对消方法、装置、系统
JP6586418B2 (ja) 2013-08-21 2019-10-02 マイリオタ ピーティーワイ エルティーディーMyriota Pty Ltd マルチユーザ通信システム
KR102190919B1 (ko) * 2014-09-11 2020-12-14 삼성전자주식회사 시분할 듀플렉싱 코드 분할 다중 접속 방식을 지원하는 통신 시스템에서 신호 검출 장치 및 방법
DE102015212207B4 (de) * 2015-06-30 2018-12-13 Deutsches Zentrum für Luft- und Raumfahrt e.V. Verfahren zum Übertragen von Daten
JP6453734B2 (ja) * 2015-09-14 2019-01-16 学校法人北里研究所 免疫染色用増感剤、免疫染色用増感剤キット、及び免疫染色方法
CN109756298A (zh) * 2017-11-03 2019-05-14 深圳超级数据链技术有限公司 一种译码方法及装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3143247B2 (ja) 1993-01-11 2001-03-07 沖電気工業株式会社 符号分割多元接続復調装置
EP0767543A3 (de) * 1995-10-06 2000-07-26 Siemens Aktiengesellschaft Kodemultiplexnachrichtenübertragung mit Interferenzunterdrückung
US5822380A (en) * 1996-08-12 1998-10-13 Ericsson Inc. Apparatus and method for joint channel estimation
US6714527B2 (en) * 1999-09-21 2004-03-30 Interdigital Techology Corporation Multiuser detector for variable spreading factors
KR100473215B1 (ko) * 1999-10-19 2005-03-10 인터디지탈 테크날러지 코포레이션 다중 사용자의 cdma 신호 검출용 수신기
JP2001203619A (ja) * 2000-01-19 2001-07-27 Matsushita Electric Ind Co Ltd 無線基地局装置及び無線通信方法
US7110440B2 (en) * 2001-03-14 2006-09-19 Mercury Computer Systems, Inc. Wireless communications systems and methods for multiple processor based multiple user detection

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Publication number Publication date
HK1054824A1 (en) 2003-12-12
CN1921323A (zh) 2007-02-28
CN1722626A (zh) 2006-01-18
ATE329414T1 (de) 2006-06-15
KR100484993B1 (ko) 2005-04-25
AU2990700A (en) 2001-04-30
US7292623B2 (en) 2007-11-06
CA2388024C (en) 2008-04-15
EP1222746B9 (en) 2006-12-20
US6724809B2 (en) 2004-04-20
EP1222746B1 (en) 2006-06-07
NO20021809D0 (no) 2002-04-17
DE60028592T2 (de) 2007-05-16
NO20021809L (no) 2002-05-22
KR100473215B1 (ko) 2005-03-10
DE60028592D1 (de) 2006-07-20
US20080019429A1 (en) 2008-01-24
KR20040083477A (ko) 2004-10-02
KR20020038962A (ko) 2002-05-24
US20040196892A1 (en) 2004-10-07
MXPA02003903A (es) 2002-09-30
ES2261184T3 (es) 2006-11-16
CN1221083C (zh) 2005-09-28
US20030053526A1 (en) 2003-03-20
CA2388024A1 (en) 2001-04-26
CN1411634A (zh) 2003-04-16
JP2003512759A (ja) 2003-04-02
EP1222746A1 (en) 2002-07-17
WO2001029983A1 (en) 2001-04-26

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