DE69717064D1 - Mehrstufiger Interferenzkompensator für ein Kodemultiplexvielfachzugriffübertragungssystem - Google Patents

Mehrstufiger Interferenzkompensator für ein Kodemultiplexvielfachzugriffübertragungssystem

Info

Publication number
DE69717064D1
DE69717064D1 DE69717064T DE69717064T DE69717064D1 DE 69717064 D1 DE69717064 D1 DE 69717064D1 DE 69717064 T DE69717064 T DE 69717064T DE 69717064 T DE69717064 T DE 69717064T DE 69717064 D1 DE69717064 D1 DE 69717064D1
Authority
DE
Germany
Prior art keywords
transmission system
multiple access
division multiple
code division
access 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.)
Expired - Lifetime
Application number
DE69717064T
Other languages
English (en)
Other versions
DE69717064T2 (de
Inventor
Takeshi Toda
Yoshinori Tanaka
Shuji Kobayakawa
Hiroyuki Seki
Masafumi Tsutsui
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE69717064D1 publication Critical patent/DE69717064D1/de
Publication of DE69717064T2 publication Critical patent/DE69717064T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H04B1/71075—Parallel 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
    • H04B1/7103—Interference-related aspects the interference being multiple access interference
    • H04B1/7107—Subtractive interference cancellation
    • H04B2001/71077—Partial interference cancellation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
DE1997617064 1996-12-20 1997-12-19 Mehrstufiger Interferenzkompensator für ein Kodemultiplexvielfachzugriffübertragungssystem Expired - Lifetime DE69717064T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP34092196A JP3390900B2 (ja) 1996-12-20 1996-12-20 干渉キャンセラ及び仮判定方法

Publications (2)

Publication Number Publication Date
DE69717064D1 true DE69717064D1 (de) 2002-12-19
DE69717064T2 DE69717064T2 (de) 2003-10-09

Family

ID=18341534

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1997617064 Expired - Lifetime DE69717064T2 (de) 1996-12-20 1997-12-19 Mehrstufiger Interferenzkompensator für ein Kodemultiplexvielfachzugriffübertragungssystem

Country Status (6)

Country Link
US (1) US6192067B1 (de)
EP (1) EP0849886B1 (de)
JP (1) JP3390900B2 (de)
KR (1) KR100263977B1 (de)
CN (1) CN1093341C (de)
DE (1) DE69717064T2 (de)

Families Citing this family (76)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI104020B (fi) * 1997-06-23 1999-10-29 Nokia Telecommunications Oy Vastaanottomenetelmä ja vastaanotin
US6363103B1 (en) * 1998-04-09 2002-03-26 Lucent Technologies Inc. Multistage interference cancellation for CDMA applications using M-ary orthogonal moduation
JP2970656B1 (ja) * 1998-06-25 1999-11-02 日本電気株式会社 Ｄｓ−ｃｄｍａマルチユーザ干渉キャンセラ
JP3800382B2 (ja) * 1998-09-04 2006-07-26 富士通株式会社 干渉キャンセラにおける伝搬路推定方法及び干渉除去装置
EP0994570A1 (de) * 1998-10-12 2000-04-19 Sony International (Europe) GmbH Spreizspektrumkanalschätzer mit Zwischenpfadstörungsreduktion
US6498784B1 (en) * 1998-10-20 2002-12-24 Interdigital Technology Corporation Cancellation of pilot and traffic signals
US6333947B1 (en) * 1998-11-25 2001-12-25 Nortel Networks Limited Interference cancellation system and method and CDMA receiver including an interference cancellation circuit
SE9900684L (sv) 1999-02-26 2000-08-27 Ericsson Telefon Ab L M Interferensundertryckning i radio stationer
KR100343773B1 (ko) * 1999-06-28 2002-07-19 한국전자통신연구원 코드분할다중접속시스템의 부분 병렬 간섭잡음 제거장치 및 방법
FR2795893B1 (fr) * 1999-07-01 2001-08-17 Commissariat Energie Atomique Recepteur amrc a suppression parallele d'interferences et a synchronisation optimisee
US6404760B1 (en) * 1999-07-19 2002-06-11 Qualcomm Incorporated CDMA multiple access interference cancellation using signal estimation
EP1073210B1 (de) * 1999-07-30 2007-03-14 Koninklijke Philips Electronics N.V. Vorrichtung zur Spreizspektrumdatenübertragung mit einem Datenempfänger
CN1118201C (zh) * 1999-08-11 2003-08-13 信息产业部电信科学技术研究院 一种基于智能天线的干扰抵销方法
JP3371956B2 (ja) * 1999-11-09 2003-01-27 日本電気株式会社 干渉キャンセラ装置
FI19992694A (fi) * 1999-12-15 2001-06-16 Nokia Networks Oy Menetelmä hajaspektrisignaalin vastaanottamiseksi ja vastaanotin
JP3686809B2 (ja) * 2000-01-28 2005-08-24 株式会社日立コミュニケーションテクノロジー 通信システム
JP3844934B2 (ja) * 2000-03-03 2006-11-15 株式会社日立コミュニケーションテクノロジー 基地局装置、移動通信システム及び送信電力制御方法
CN1372733A (zh) * 2000-05-11 2002-10-02 松下电器产业株式会社 干扰消除器装置和干扰消除方法
DE10026615B4 (de) * 2000-05-19 2004-12-23 Systemonic Ag Verfahren und Anordnung zum Empfang von CDMA-Signalen
KR100340684B1 (ko) * 2000-06-14 2002-06-20 윤광석 서비스 채널 간격만큼 이격된 멀티신호를 생성하기 위한장치 및 그 방법
EP1213852A1 (de) * 2000-07-24 2002-06-12 Mitsubishi Denki Kabushiki Kaisha Empfangsvorrichtung und empfangsverfahren für funkkommunikation
FR2814014B1 (fr) * 2000-09-14 2002-10-11 Mitsubishi Electric Inf Tech Methode de detection multi-utilisateur
CN100361410C (zh) * 2000-10-06 2008-01-09 诺基亚公司 Cdma系统的均衡并行干扰消除(epic)
US6711219B2 (en) 2000-12-04 2004-03-23 Tensorcomm, Incorporated Interference cancellation in a signal
US6856945B2 (en) 2000-12-04 2005-02-15 Tensorcomm, Inc. Method and apparatus for implementing projections in singal processing applications
JP2002217871A (ja) * 2000-12-19 2002-08-02 Telefon Ab Lm Ericsson Publ サブトラクティブ干渉キャンセラにおける重み付け係数の設定方法、該重み付け係数を使用した干渉キャンセラユニットおよび干渉キャンセラ
US7697594B2 (en) * 2001-03-30 2010-04-13 Texas Instruments Incorporated Method and apparatus for regenerative based interference cancellation within a communication system
US20020146044A1 (en) * 2001-04-09 2002-10-10 Riaz Esmailzadeh Hybrid single/multiuser interference reduction detector
US7190710B2 (en) * 2001-06-08 2007-03-13 Broadcom Corporation Successive interference canceling for CMDA
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
US7830934B2 (en) * 2001-08-29 2010-11-09 Cymer, Inc. Multi-chamber gas discharge laser bandwidth control through discharge timing
CN100413224C (zh) * 2001-09-12 2008-08-20 英芬能技术公司 码分多址无线系统
US8085889B1 (en) 2005-04-11 2011-12-27 Rambus Inc. Methods for managing alignment and latency in interference cancellation
US7158559B2 (en) 2002-01-15 2007-01-02 Tensor Comm, Inc. Serial cancellation receiver design for a coded signal processing engine
CN100385814C (zh) 2001-11-16 2008-04-30 张量通讯公司 用于构造编码信号处理引擎的干扰矩阵的方法和装置
US20050101277A1 (en) * 2001-11-19 2005-05-12 Narayan Anand P. Gain control for interference cancellation
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
WO2005081438A1 (en) * 2001-11-19 2005-09-01 Tensorcomm, Incorporated Interference cancellation in a signal
US7580448B2 (en) * 2002-10-15 2009-08-25 Tensorcomm, Inc Method and apparatus for channel amplitude estimation and interference vector construction
US20040146093A1 (en) * 2002-10-31 2004-07-29 Olson Eric S. Systems and methods for reducing interference in CDMA systems
US7787518B2 (en) * 2002-09-23 2010-08-31 Rambus Inc. Method and apparatus for selectively applying interference cancellation in spread spectrum systems
US7280585B2 (en) * 2002-02-11 2007-10-09 Texas Instruments Incorporated Parallel interference cancellation device for multi-user CDMA systems
US20030162573A1 (en) * 2002-02-19 2003-08-28 Jyhchau Horng Down-link interference cancellation for high-data-rate channels in advanced digital wireless networks
SG114534A1 (en) * 2002-03-12 2005-09-28 Oki Techno Ct Singapore Pte Reduced-complexity multipath interference cancellation
US20040208238A1 (en) * 2002-06-25 2004-10-21 Thomas John K. Systems and methods for location estimation in spread spectrum communication systems
US7787572B2 (en) * 2005-04-07 2010-08-31 Rambus Inc. Advanced signal processors for interference cancellation in baseband receivers
US8761321B2 (en) * 2005-04-07 2014-06-24 Iii Holdings 1, Llc Optimal feedback weighting for soft-decision cancellers
US7876810B2 (en) * 2005-04-07 2011-01-25 Rambus Inc. Soft weighted interference cancellation for CDMA systems
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
US7577186B2 (en) * 2002-09-20 2009-08-18 Tensorcomm, Inc Interference matrix construction
US7808937B2 (en) 2005-04-07 2010-10-05 Rambus, Inc. Variable interference cancellation technology for CDMA systems
US20050123080A1 (en) * 2002-11-15 2005-06-09 Narayan Anand P. Systems and methods for serial cancellation
US8179946B2 (en) 2003-09-23 2012-05-15 Rambus Inc. Systems and methods for control of advanced receivers
US7715508B2 (en) * 2005-11-15 2010-05-11 Tensorcomm, Incorporated Iterative interference cancellation using mixed feedback weights and stabilizing step sizes
US8005128B1 (en) 2003-09-23 2011-08-23 Rambus Inc. Methods for estimation and interference cancellation for signal processing
AU2003301493A1 (en) * 2002-10-15 2004-05-04 Tensorcomm Inc. Method and apparatus for interference suppression with efficient matrix inversion in a ds-cdma system
US7217941B2 (en) * 2003-04-08 2007-05-15 Cymer, Inc. Systems and methods for deflecting plasma-generated ions to prevent the ions from reaching an internal component of an EUV light source
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
US20050169354A1 (en) * 2004-01-23 2005-08-04 Olson Eric S. Systems and methods for searching interference canceled data
US7324616B2 (en) * 2004-03-01 2008-01-29 Motorola, Inc. Low cost and high performance narrowband interference cancellation system
US20060125689A1 (en) * 2004-12-10 2006-06-15 Narayan Anand P Interference cancellation in a receive diversity system
US20060229051A1 (en) * 2005-04-07 2006-10-12 Narayan Anand P Interference selection and cancellation for CDMA communications
US7826516B2 (en) 2005-11-15 2010-11-02 Rambus Inc. Iterative interference canceller for wireless multiple-access systems with multiple receive antennas
US7991088B2 (en) 2005-11-15 2011-08-02 Tommy Guess Iterative interference cancellation using mixed feedback weights and stabilizing step sizes
US20070110135A1 (en) * 2005-11-15 2007-05-17 Tommy Guess Iterative interference cancellation for MIMO-OFDM receivers
US7623602B2 (en) * 2005-11-15 2009-11-24 Tensorcomm, Inc. Iterative interference canceller for wireless multiple-access systems employing closed loop transmit diversity
US20070297497A1 (en) * 2006-06-21 2007-12-27 Seibert Cristina A Apparatus And Method For Interference Cancellation
US7817752B2 (en) * 2007-05-17 2010-10-19 Research In Motion Limited Apparatus, and associated method, for detecting values of a space-time block code using selective decision-feedback detection
CN101534507B (zh) * 2008-03-12 2014-04-16 株式会社Ntt都科摩 物理资源的分配方法及装置
US8615030B2 (en) 2009-05-04 2013-12-24 Qualcomm Incorporated Method and system for multi-user detection using two-stage processing
US8451963B2 (en) * 2009-06-09 2013-05-28 Qualcomm Incorporated Method and system for interference cancellation
US9338031B2 (en) * 2009-08-17 2016-05-10 Qualcomm Incorporated Methods and apparatus for interference decrease/cancellation on downlink acquisition signals
KR20120047449A (ko) * 2010-11-04 2012-05-14 삼성전자주식회사 가중치를 고려하는 피아이씨 채널 추정기를 위한 방법 및 장치
CN107615671B (zh) * 2015-05-29 2019-06-25 株式会社日立国际电气 噪声消除器装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4761796A (en) * 1985-01-24 1988-08-02 Itt Defense Communications High frequency spread spectrum communication system terminal
US5553062A (en) 1993-04-22 1996-09-03 Interdigital Communication Corporation Spread spectrum CDMA interference canceler system and method
GB2279851B (en) 1993-07-01 1997-10-01 Roke Manor Research Threshold cancellation means for use in digital mobile radio networks
GB9317604D0 (en) * 1993-08-24 1993-10-06 Philips Electronics Uk Ltd Receiver for ds-cdma signals
JP2927657B2 (ja) * 1993-11-05 1999-07-28 ケイディディ株式会社 スペクトル拡散信号復調装置
EP0696398A1 (de) * 1994-02-25 1996-02-14 Koninklijke Philips Electronics N.V. Digitales übertragungssystem mit mehrfachzugriff, basisfunkstation und empfänger zur verwendung in solchen systemen

Also Published As

Publication number Publication date
KR19980064356A (ko) 1998-10-07
CN1188349A (zh) 1998-07-22
EP0849886A2 (de) 1998-06-24
US6192067B1 (en) 2001-02-20
CN1093341C (zh) 2002-10-23
DE69717064T2 (de) 2003-10-09
KR100263977B1 (ko) 2000-08-16
EP0849886B1 (de) 2002-11-13
JPH10190496A (ja) 1998-07-21
EP0849886A3 (de) 2000-05-31
JP3390900B2 (ja) 2003-03-31

Similar Documents

Publication Publication Date Title
DE69717064D1 (de) Mehrstufiger Interferenzkompensator für ein Kodemultiplexvielfachzugriffübertragungssystem
DE996239T1 (de) Automatisches Sendeleistungsregelungssystem für ein Kodemultiplexvielfachzugriffübertragungssystem
DE69525374T2 (de) Verkaufssystem für ein netzwerk
DE69211030T3 (de) Kraftübertragungssystem für ein Fahrzeug
DE59106583D1 (de) Gehäuseblock für ein hydraulisches bremssystem.
DE4291022T1 (de) Kurzstreckenübertragungsverbindung für ein Tiefen-MWD-System
DE59705572D1 (de) Kupplungsanordnung für ein fahrzeug
DE69615914T2 (de) Funkübertragungsvorrichtung für Zeitmultiplex-Vielfachzugriffssystem
DE69734074D1 (de) Ein Zeitduplex-Zeitverteilvielfachzugriff-Doppelbandsystem
DE69702132T2 (de) Steuersystem für ein stufenloses getriebe
DE69820922D1 (de) Hydraulisches Steuersystem für ein stufenloses Getriebe
DE69329834T2 (de) Zugriffssteuerungssystem für einen mehrkanal-übertragungsring
DE69029513T2 (de) Vielfachzugriffssystem für ein übertragungsnetz
DE69731588D1 (de) Coderienrichtung mit verringerter komplexität für ein signalübertragungssystem
DE69108147D1 (de) Kraftübertragung für ein Fahrzeug.
ATE181996T1 (de) Übersetzungssteuerung für ein hydraulisches getriebe
DE69014534T2 (de) Steuerungsanlage für ein stufenloses Getriebe.
DE60006466D1 (de) Steuersystem für ein Getriebe
DE69015087T2 (de) Steuerungssystem für ein stufenloses Getriebe.
DE69716416D1 (de) Steuersystem für ein stufenloses getriebe
DE60028860D1 (de) Mehrstufiger Interferenzkompensator für ein Kodemultiplexvielfachzugriffübertragungssystem
ATA906794A (de) Rotor für ein dynamisches filtersystem
DE69729514D1 (de) Hydraulische Steuerung für ein mehrstufiges Getriebe
DE69636981D1 (de) Übertragungssystem für ein nichtlineares übertragungsmedium
DE69430412T2 (de) Leistungssteuerung für ein Teilnehmeranschlussübertragungssystem

Legal Events

Date Code Title Description
8364 No opposition during term of opposition