DE60123940D1 - Mehrbenutzerdetektion in einem MC-CDMA Nachrichtensystem - Google Patents

Mehrbenutzerdetektion in einem MC-CDMA Nachrichtensystem

Info

Publication number
DE60123940D1
DE60123940D1 DE60123940T DE60123940T DE60123940D1 DE 60123940 D1 DE60123940 D1 DE 60123940D1 DE 60123940 T DE60123940 T DE 60123940T DE 60123940 T DE60123940 T DE 60123940T DE 60123940 D1 DE60123940 D1 DE 60123940D1
Authority
DE
Germany
Prior art keywords
user
symbols
user detection
frequency components
despreading
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
DE60123940T
Other languages
English (en)
Other versions
DE60123940T2 (de
Inventor
David Mottier
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.)
Mitsubishi Electric Information Technology Corp
Mitsubishi Electric R&D Centre Europe BV Netherlands
Original Assignee
Mitsubishi Electric Information Technology Corp
Mitsubishi Electric Information Technology Center Europe BV Nederlands
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 Mitsubishi Electric Information Technology Corp, Mitsubishi Electric Information Technology Center Europe BV Nederlands filed Critical Mitsubishi Electric Information Technology Corp
Publication of DE60123940D1 publication Critical patent/DE60123940D1/de
Application granted granted Critical
Publication of DE60123940T2 publication Critical patent/DE60123940T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/024—Channel estimation channel estimation algorithms
    • H04L25/0256—Channel estimation using minimum mean square error criteria
    • 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
    • H04B1/7105—Joint detection techniques, e.g. linear detectors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/021—Estimation of channel covariance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/022—Channel estimation of frequency response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03159—Arrangements for removing intersymbol interference operating in the frequency domain
    • 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
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2649—Demodulators
    • H04L27/26524—Fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators in combination with other circuits for demodulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/03414—Multicarrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03522—Frequency domain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/024—Channel estimation channel estimation algorithms
    • H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
    • H04L25/0244—Channel estimation channel estimation algorithms using matrix methods with inversion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03331—Arrangements for the joint estimation of multiple sequences
    • 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
    • H04L5/0014—Three-dimensional division
    • H04L5/0016—Time-frequency-code
    • H04L5/0021—Time-frequency-code in which codes are applied as a frequency-domain sequences, e.g. MC-CDMA
DE60123940T 2001-07-13 2001-07-13 Mehrbenutzerdetektion in einem MC-CDMA Nachrichtensystem Expired - Lifetime DE60123940T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01401882A EP1276268B1 (de) 2001-07-13 2001-07-13 Mehrbenutzerdetektion in einem MC-CDMA Nachrichtensystem

Publications (2)

Publication Number Publication Date
DE60123940D1 true DE60123940D1 (de) 2006-11-30
DE60123940T2 DE60123940T2 (de) 2007-05-24

Family

ID=8182806

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60123940T Expired - Lifetime DE60123940T2 (de) 2001-07-13 2001-07-13 Mehrbenutzerdetektion in einem MC-CDMA Nachrichtensystem

Country Status (5)

Country Link
US (1) US7327668B2 (de)
EP (1) EP1276268B1 (de)
JP (1) JP4284037B2 (de)
AT (1) ATE343270T1 (de)
DE (1) DE60123940T2 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100479338C (zh) * 2003-03-03 2009-04-15 美商内数位科技公司 以降低复杂度滑窗为基础的均衡器
US7042967B2 (en) * 2003-03-03 2006-05-09 Interdigital Technology Corporation Reduced complexity sliding window based equalizer
US7480493B1 (en) * 2004-10-29 2009-01-20 Itt Manufacturing Enterprises, Inc. Bit detection using code spectrum transform techniques for interference cancellation
US7593473B2 (en) * 2004-12-01 2009-09-22 Bae Systems Information And Electronic Systems Integration Inc. Tree structured multicarrier multiple access systems
US7715460B2 (en) * 2005-04-22 2010-05-11 Interdigital Technology Corporation Hybrid orthogonal frequency division multiple access system and method
KR101329145B1 (ko) 2007-10-05 2013-11-21 포항공과대학교 산학협력단 반복적 다중 사용자 검파를 통한 공간 블록 부호화 신호송수신 장치 및 방법
EP2226650B1 (de) * 2009-03-04 2011-08-17 Sick Ag Optoelektronischer Sensor
CN101932129A (zh) * 2009-06-21 2010-12-29 先耀无线股份有限公司 多使用者、多模式基带信号方法、时间/频率同步及接收器架构

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2734953B2 (ja) * 1993-12-16 1998-04-02 日本電気株式会社 Ｃｄｍａ受信装置
JP2809179B2 (ja) * 1996-03-14 1998-10-08 日本電気株式会社 無線同報通信システム
US6259730B1 (en) * 1998-11-10 2001-07-10 Lucent Technologies, Inc. Transmit diversity and reception equalization for radio links
JP3764827B2 (ja) * 1999-03-01 2006-04-12 富士通株式会社 マルチキャリアスペクトル拡散通信における受信機、及び受信方法
US6721293B1 (en) * 1999-03-10 2004-04-13 Nokia Corporation Unsupervised adaptive chip separation filter for CDMA terminal
US7082174B1 (en) * 2000-07-24 2006-07-25 Qualcomm, Incorporated Method and apparatus for processing a modulated signal using an equalizer and a rake receiver
FR2822568B1 (fr) 2001-03-22 2003-06-06 Mitsubishi Electric Inf Tech Methode et dispositif d'egalisation de type gmmse

Also Published As

Publication number Publication date
JP4284037B2 (ja) 2009-06-24
EP1276268A1 (de) 2003-01-15
EP1276268B1 (de) 2006-10-18
DE60123940T2 (de) 2007-05-24
ATE343270T1 (de) 2006-11-15
US20030063557A1 (en) 2003-04-03
JP2003110530A (ja) 2003-04-11
US7327668B2 (en) 2008-02-05

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