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ES2188373A1 - Procedimiento de optimizacion de la comunicacion para sistema de transmision digital ofdm multiusuario sobre red electrica. - Google Patents

Procedimiento de optimizacion de la comunicacion para sistema de transmision digital ofdm multiusuario sobre red electrica.

Info

Publication number
ES2188373A1
ES2188373A1 ES200101216A ES200101216A ES2188373A1 ES 2188373 A1 ES2188373 A1 ES 2188373A1 ES 200101216 A ES200101216 A ES 200101216A ES 200101216 A ES200101216 A ES 200101216A ES 2188373 A1 ES2188373 A1 ES 2188373A1
Authority
ES
Spain
Prior art keywords
equipment
electrical network
communication
user
transmission
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
ES200101216A
Other languages
English (en)
Other versions
ES2188373B1 (es
Inventor
Claret Jorge Vicente Blasco
Insua Juan Carlos Riveiro
Nils Hakan Fouren
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MaxLinear Hispania SL
Original Assignee
Diseno de Sistemas en Silicio SA
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
Priority to ES200101216A priority Critical patent/ES2188373B1/es
Application filed by Diseno de Sistemas en Silicio SA filed Critical Diseno de Sistemas en Silicio SA
Priority to JP2002592321A priority patent/JP2004528782A/ja
Priority to IL15884702A priority patent/IL158847A0/xx
Priority to MXPA03010656A priority patent/MXPA03010656A/es
Priority to KR1020037015422A priority patent/KR100685686B1/ko
Priority to EA200301175A priority patent/EA007364B1/ru
Priority to CNB028147898A priority patent/CN1299439C/zh
Priority to CA002448453A priority patent/CA2448453A1/en
Priority to BR0210087-8A priority patent/BR0210087A/pt
Priority to EP20020732773 priority patent/EP1398885A1/en
Priority to PCT/ES2002/000245 priority patent/WO2002095978A1/es
Publication of ES2188373A1 publication Critical patent/ES2188373A1/es
Priority to US10/723,241 priority patent/US20040151108A1/en
Application granted granted Critical
Publication of ES2188373B1 publication Critical patent/ES2188373B1/es
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/04—Arrangements for detecting or preventing errors in the information received by diversity reception using frequency diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH
    • H04L5/0046—Determination of the number of bits transmitted on different sub-channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • H04L1/0017—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy where the mode-switching is based on Quality of Service requirement
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0025—Transmission of mode-switching indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

Procedimiento de optimización de la comunicación para sistema de transmisión digital OFDM multiusuario sobre red eléctrica. Aplicable a la comunicación bidireccional a través de la red eléctrica entre una pluralidad de equipos de usuario (2) y un equipo de cabecera (1); se caracteriza porque monitoriza continuamente la calidad de la comunicación mediante la estima de la relación señal a ruido (S/N) de las distintas portadoras del canal ascendente y descendente por parte de los receptores de los equipos (1, 2). Los equipos de usuario monitorizan el estado de la red en cualquier momento con independencia de que sean ellos el destino o no de la transmisión. Se elige el modo óptimo de transmisión a partir de la monitorización realizada, mediante la modificación, paquete a paquete, del número de bits por portadora, de la redundancia introducida por un FEC generador de (códigos de corrección/detección de errores por anticipado), del propio código FEC y/o del modo de transmisión; para realizar lacompartición de la red en tiempo y en frecuencia de forma óptima en todo momento y maximizar la capacidad de transmisión de los múltiples equipos de usuario por la red.
ES200101216A 2001-05-25 2001-05-25 Procedimiento de optimizacion de la comunicacion para sistema de transmision digital ofdm multiusuario sobre red electrica. Expired - Fee Related ES2188373B1 (es)

Priority Applications (12)

Application Number Priority Date Filing Date Title
ES200101216A ES2188373B1 (es) 2001-05-25 2001-05-25 Procedimiento de optimizacion de la comunicacion para sistema de transmision digital ofdm multiusuario sobre red electrica.
BR0210087-8A BR0210087A (pt) 2001-05-25 2002-05-23 Processo para otimizar comunicação para sistema de trasmissão digital ofdm multi-usuário por rede elétrica
MXPA03010656A MXPA03010656A (es) 2001-05-25 2002-05-23 Procedimiento de optimizacion de la comunicacion para sistema de trasmision digital ofdm multiusuario sobre red electronica.
KR1020037015422A KR100685686B1 (ko) 2001-05-25 2002-05-23 전기 통신망을 통한 멀티 유저 ｏｆｄｍ 디지털 전송시스템을 위한 통신 최적화 방법
EA200301175A EA007364B1 (ru) 2001-05-25 2002-05-23 Способ оптимизации передачи данных в многопользовательской системе цифровой передачи данных по электрической сети с использованием очу-модуляции
CNB028147898A CN1299439C (zh) 2001-05-25 2002-05-23 用于使用供电电网的多用户ofdm数字传输系统的通信优化方法
JP2002592321A JP2004528782A (ja) 2001-05-25 2002-05-23 電気ネットワークを介した複数ユーザｏｆｄｍデジタル送信システムのための通信最適化の方法
IL15884702A IL158847A0 (en) 2001-05-25 2002-05-23 Communication optimization method for a multi-user ofdm digital transmission system using the electrical network
EP20020732773 EP1398885A1 (en) 2001-05-25 2002-05-23 Communication optimisation method for a multi-user ofdm digital transmission system using the electrical network
PCT/ES2002/000245 WO2002095978A1 (es) 2001-05-25 2002-05-23 Procedimiento de optimizacion de la comunicacion para sistema de transmision digital ofdm multiusuario sobre red electrica
CA002448453A CA2448453A1 (en) 2001-05-25 2002-05-23 Communication optimisation method for a multi-user ofdm digital transmission system using the electrical network
US10/723,241 US20040151108A1 (en) 2001-05-25 2003-11-25 Process to optimise communication for a multi-user OFDM digital transmission system over the electricity network

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200101216A ES2188373B1 (es) 2001-05-25 2001-05-25 Procedimiento de optimizacion de la comunicacion para sistema de transmision digital ofdm multiusuario sobre red electrica.

Publications (2)

Publication Number Publication Date
ES2188373A1 true ES2188373A1 (es) 2003-06-16
ES2188373B1 ES2188373B1 (es) 2004-10-16

Family

ID=8497859

Family Applications (1)

Application Number Title Priority Date Filing Date
ES200101216A Expired - Fee Related ES2188373B1 (es) 2001-05-25 2001-05-25 Procedimiento de optimizacion de la comunicacion para sistema de transmision digital ofdm multiusuario sobre red electrica.

Country Status (12)

Country Link
US (1) US20040151108A1 (es)
EP (1) EP1398885A1 (es)
JP (1) JP2004528782A (es)
KR (1) KR100685686B1 (es)
CN (1) CN1299439C (es)
BR (1) BR0210087A (es)
CA (1) CA2448453A1 (es)
EA (1) EA007364B1 (es)
ES (1) ES2188373B1 (es)
IL (1) IL158847A0 (es)
MX (1) MXPA03010656A (es)
WO (1) WO2002095978A1 (es)

Families Citing this family (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8194770B2 (en) 2002-08-27 2012-06-05 Qualcomm Incorporated Coded MIMO systems with selective channel inversion applied per eigenmode
US7002900B2 (en) 2002-10-25 2006-02-21 Qualcomm Incorporated Transmit diversity processing for a multi-antenna communication system
US8570988B2 (en) 2002-10-25 2013-10-29 Qualcomm Incorporated Channel calibration for a time division duplexed communication system
US8170513B2 (en) 2002-10-25 2012-05-01 Qualcomm Incorporated Data detection and demodulation for wireless communication systems
US7324429B2 (en) 2002-10-25 2008-01-29 Qualcomm, Incorporated Multi-mode terminal in a wireless MIMO system
US8218609B2 (en) 2002-10-25 2012-07-10 Qualcomm Incorporated Closed-loop rate control for a multi-channel communication system
US8208364B2 (en) 2002-10-25 2012-06-26 Qualcomm Incorporated MIMO system with multiple spatial multiplexing modes
US7986742B2 (en) 2002-10-25 2011-07-26 Qualcomm Incorporated Pilots for MIMO communication system
US8169944B2 (en) 2002-10-25 2012-05-01 Qualcomm Incorporated Random access for wireless multiple-access communication systems
US8134976B2 (en) 2002-10-25 2012-03-13 Qualcomm Incorporated Channel calibration for a time division duplexed communication system
US8320301B2 (en) 2002-10-25 2012-11-27 Qualcomm Incorporated MIMO WLAN system
US20040081131A1 (en) 2002-10-25 2004-04-29 Walton Jay Rod OFDM communication system with multiple OFDM symbol sizes
KR100606129B1 (ko) 2003-04-30 2006-07-28 삼성전자주식회사 광대역 무선 접속 통신 시스템에서 채널 품질 측정 및보고 방법
CN1830189B (zh) 2003-07-25 2011-09-07 松下电器产业株式会社 用于具有传输质量评估的多载波传输/接收的装置及方法
US7903538B2 (en) 2003-08-06 2011-03-08 Intel Corporation Technique to select transmission parameters
JP4356392B2 (ja) * 2003-08-07 2009-11-04 パナソニック株式会社 通信装置
US20050063422A1 (en) * 2003-09-19 2005-03-24 Sashi Lazar Communication protocol over power line communication networks
US9473269B2 (en) 2003-12-01 2016-10-18 Qualcomm Incorporated Method and apparatus for providing an efficient control channel structure in a wireless communication system
US7730469B1 (en) * 2004-05-04 2010-06-01 Oracle America, Inc. Method and system for code optimization
US7822124B1 (en) * 2004-07-02 2010-10-26 Ikanos Communications Inc. Method and apparatus for adaptive iterative decision feedback control coding in modems
JP5052742B2 (ja) * 2004-07-22 2012-10-17 パナソニック株式会社 送信装置及びそれを用いた通信システム
WO2006013705A1 (ja) * 2004-08-06 2006-02-09 Matsushita Electric Industrial Co., Ltd. マルチキャリア通信における無線送信装置および無線送信方法
KR100713436B1 (ko) * 2004-10-28 2007-05-07 삼성전자주식회사 통신 시스템에서 ｃｉｎｒ 추정 장치 및 방법
US8126065B2 (en) * 2005-03-23 2012-02-28 Sony Corporation Automatic power adjustment in powerline home network
ATE476026T1 (de) * 2005-05-04 2010-08-15 Nokia Siemens Networks Gmbh Verfahren zur codierung von datenblöcken
US7466749B2 (en) 2005-05-12 2008-12-16 Qualcomm Incorporated Rate selection with margin sharing
US8358714B2 (en) 2005-06-16 2013-01-22 Qualcomm Incorporated Coding and modulation for multiple data streams in a communication system
US7613260B2 (en) 2005-11-21 2009-11-03 Provigent Ltd Modem control using cross-polarization interference estimation
US7664955B2 (en) * 2006-03-07 2010-02-16 Atheros Communications, Inc. Establishing shared information in a network
US7796708B2 (en) * 2006-03-29 2010-09-14 Provigent Ltd. Adaptive receiver loops with weighted decision-directed error
US7634016B2 (en) * 2006-04-25 2009-12-15 Microsoft Corporation Variable OFDM subchannel coding and modulation
US7933344B2 (en) * 2006-04-25 2011-04-26 Mircosoft Corporation OFDMA based on cognitive radio
US8189621B2 (en) 2006-05-12 2012-05-29 Microsoft Corporation Stack signaling to application with lack of requested bandwidth
KR100768327B1 (ko) * 2006-05-23 2007-10-17 인하대학교 산학협력단 다중 반송파 신호를 사용하는 시스템의 cinr 추정장치 및 그 방법
US7643512B2 (en) 2006-06-29 2010-01-05 Provigent Ltd. Cascaded links with adaptive coding and modulation
KR100750740B1 (ko) 2006-08-17 2007-08-22 삼성전자주식회사 수신성능이 개선된 다중반송파 수신기 및 그 신호처리방법
US8099763B2 (en) * 2006-08-25 2012-01-17 Cisco Technology, Inc. Apparatus and method for range-confined communications
EP2067316A2 (en) * 2006-08-28 2009-06-10 Nokia Corporation Apparatus, method and computer program product providing harq-aware packet scheduler
US7839952B2 (en) 2006-12-05 2010-11-23 Provigent Ltd Data rate coordination in protected variable-rate links
US8144793B2 (en) * 2006-12-12 2012-03-27 Microsoft Corporation Cognitive multi-user OFDMA
US7720136B2 (en) 2006-12-26 2010-05-18 Provigent Ltd Adaptive coding and modulation based on link performance prediction
US7929623B2 (en) * 2007-03-30 2011-04-19 Microsoft Corporation FEC in cognitive multi-user OFDMA
US8315574B2 (en) 2007-04-13 2012-11-20 Broadcom Corporation Management of variable-rate communication links
US7821938B2 (en) * 2007-04-20 2010-10-26 Provigent Ltd. Adaptive coding and modulation for synchronous connections
US7970085B2 (en) 2007-05-08 2011-06-28 Microsoft Corporation OFDM transmission and reception for non-OFDMA signals
US8001445B2 (en) * 2007-08-13 2011-08-16 Provigent Ltd. Protected communication link with improved protection indication
US8040985B2 (en) * 2007-10-09 2011-10-18 Provigent Ltd Decoding of forward error correction codes in the presence of phase noise
ES2335634B1 (es) * 2008-01-24 2011-02-10 Vicente Diaz Fuente Metodo y aparato de codificacion y decodificacion para la reduccion de las interferencias en sistemas de transmision de señales simultaneasy usuarios multiples.
US8374130B2 (en) 2008-01-25 2013-02-12 Microsoft Corporation Orthogonal frequency division multiple access with carrier sense
ATE519281T1 (de) * 2008-06-16 2011-08-15 Alcatel Lucent Vorrichtung und zugehöriges verfahren zur übersprechnungbeurteilung
WO2010011500A1 (en) * 2008-07-25 2010-01-28 Smith International, Inc. Pdc bit having split blades
US8855087B2 (en) * 2008-12-18 2014-10-07 Microsoft Corporation Wireless access point supporting control by multiple applications
KR20100073992A (ko) * 2008-12-23 2010-07-01 엘지전자 주식회사 반송파 집성 환경에서의 상향링크 전송
US8428188B2 (en) * 2009-06-17 2013-04-23 Techwell, Inc. Carrier phase offset correction for a QAM system
US8488514B2 (en) * 2009-10-02 2013-07-16 Research In Motion Limited Relay backhaul link quality considerations for mobility procedures
US8564522B2 (en) * 2010-03-31 2013-10-22 Apple Inc. Reduced-power communications within an electronic display
CN103001732B (zh) * 2011-09-19 2017-04-05 北京邮电大学 传输模式选择方法、装置及移动终端
US9338580B2 (en) 2011-10-21 2016-05-10 Qualcomm Incorporated Method and apparatus for packet loss rate-based codec adaptation
US10764532B2 (en) * 2012-10-30 2020-09-01 Viavi Solutions Inc. Method and system for locating ingress utilizing customer premises equipment
GB2514623A (en) * 2013-05-31 2014-12-03 Nordic Semiconductor Asa Radio data packets
WO2015189898A1 (ja) * 2014-06-09 2015-12-17 日立オートモティブシステムズ株式会社 電池システム
CN112566307B (zh) * 2019-09-10 2022-11-04 酷矽半导体科技(上海)有限公司 安全显示系统及安全显示方法
KR102360841B1 (ko) * 2020-09-24 2022-02-11 (주)메티스 Tlc를 이용한 승강기 통신 시스템
CN112104397B (zh) * 2020-11-23 2021-03-23 国网江西省电力有限公司经济技术研究院 一种mimo电力线通信数据传输方法及装置
CN113992287B (zh) * 2021-10-26 2024-05-24 封开低频时码授时台 一种低频时码授时信号载波频率选择方法及系统
CN114268974B (zh) * 2021-12-19 2023-08-29 广东电力通信科技有限公司 一种融合230m无线通信模组与电力载波的通信质量优化方法
CN119696732B (zh) * 2024-12-05 2025-09-19 国网湖南省电力有限公司 一种继电保护信息无损转发方法和系统

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000038402A1 (en) * 1998-12-23 2000-06-29 Enikia Llc Power line communication system for local area networks

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5128969A (en) * 1989-08-30 1992-07-07 Baghdady Elie J Method and apparatus for diversity reception
US6313738B1 (en) * 1997-06-09 2001-11-06 At&T Corp. Adaptive noise cancellation system
GB9827601D0 (en) * 1998-12-15 1999-02-10 Northern Telecom Ltd A power line communications system and method of operation thereof
US6236687B1 (en) * 1999-02-26 2001-05-22 Trw Inc. Decision directed phase locked loop (DD-PLL) for use with short block codes in digital communication systems
JP3285850B2 (ja) * 1999-09-17 2002-05-27 三菱電機株式会社 通信方法および通信装置
US6397368B1 (en) * 1999-12-06 2002-05-28 Intellon Corporation Forward error correction with channel adaptation
US7450604B2 (en) * 2002-04-20 2008-11-11 Conexant Systems, Inc. Method and apparatus for establishing circuit connections over local area networks with frequency selective impairments

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000038402A1 (en) * 1998-12-23 2000-06-29 Enikia Llc Power line communication system for local area networks

Also Published As

Publication number Publication date
US20040151108A1 (en) 2004-08-05
EP1398885A1 (en) 2004-03-17
KR20040008192A (ko) 2004-01-28
CN1535507A (zh) 2004-10-06
WO2002095978A1 (es) 2002-11-28
BR0210087A (pt) 2004-08-17
EA007364B1 (ru) 2006-10-27
MXPA03010656A (es) 2005-03-07
EA200301175A1 (ru) 2004-08-26
IL158847A0 (en) 2004-05-12
ES2188373B1 (es) 2004-10-16
KR100685686B1 (ko) 2007-02-23
CA2448453A1 (en) 2002-11-28
JP2004528782A (ja) 2004-09-16
CN1299439C (zh) 2007-02-07

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