ATE372609T1 - Verallgemeinerte zweistufige datenschätzung - Google Patents

Verallgemeinerte zweistufige datenschätzung

Info

Publication number
ATE372609T1
ATE372609T1 AT04700894T AT04700894T ATE372609T1 AT E372609 T1 ATE372609 T1 AT E372609T1 AT 04700894 T AT04700894 T AT 04700894T AT 04700894 T AT04700894 T AT 04700894T AT E372609 T1 ATE372609 T1 AT E372609T1
Authority
AT
Austria
Prior art keywords
estimate
received signals
channel
wtru
produce
Prior art date
Application number
AT04700894T
Other languages
English (en)
Inventor
Jung-Lin Pan
Yuejin Huang
Donald Grieco
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
Application granted granted Critical
Publication of ATE372609T1 publication Critical patent/ATE372609T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/10—Code generation
    • 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
    • H04B1/71052—Joint detection techniques, e.g. linear detectors using decorrelation matrix
    • 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
    • H04B1/71055—Joint detection techniques, e.g. linear detectors using minimum mean squared error [MMSE] detector
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/16—Code allocation
    • 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
    • H04L25/0204—Channel estimation of multiple channels
    • 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
    • H04L25/0246—Channel estimation channel estimation algorithms using matrix methods with factorisation
    • 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
    • H04B2201/70707—Efficiency-related aspects
AT04700894T 2003-01-10 2004-01-08 Verallgemeinerte zweistufige datenschätzung ATE372609T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US43928403P 2003-01-10 2003-01-10

Publications (1)

Publication Number Publication Date
ATE372609T1 true ATE372609T1 (de) 2007-09-15

Family

ID=32713459

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04700894T ATE372609T1 (de) 2003-01-10 2004-01-08 Verallgemeinerte zweistufige datenschätzung

Country Status (13)

Country Link
US (5) US6937644B2 (de)
EP (1) EP1582008B1 (de)
JP (1) JP4015170B2 (de)
KR (5) KR20090119921A (de)
CN (1) CN1723629A (de)
AT (1) ATE372609T1 (de)
CA (1) CA2512574A1 (de)
DE (1) DE602004008738T2 (de)
DK (1) DK1582008T3 (de)
ES (1) ES2293202T3 (de)
MX (1) MXPA05007461A (de)
NO (1) NO20053493L (de)
WO (1) WO2004064298A2 (de)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7079571B1 (en) * 1998-10-08 2006-07-18 Broadcom Corporation Method and circuits for power management in a transceiver
US7218624B2 (en) * 2001-11-14 2007-05-15 Interdigital Technology Corporation User equipment and base station performing data detection using a scalar array
GB2404822B (en) * 2003-08-07 2007-07-11 Ipwireless Inc Method and arrangement for noise variance and sir estimation
FI20040182A0 (fi) * 2004-02-06 2004-02-06 Nokia Corp Tietojenkäsittelymenetelmä, korjain ja vastaanotin
AU2005203278A1 (en) * 2004-08-12 2006-03-02 Nec Australia Pty Ltd Method for calculating filter coefficients for an equaliser in a communication receiver
US20060083291A1 (en) * 2004-10-15 2006-04-20 Zheng Hongming Receiver apparatus, and associated method, for operating upon data communicated in a MIMO, multi-code, MC-CDMA communication system
CN100534021C (zh) * 2004-12-08 2009-08-26 大唐移动通信设备有限公司 一种码分多址系统信道化码的分配方法
US7187230B2 (en) * 2005-03-18 2007-03-06 Nokia Corporation Transferred-impedance filtering in RF receivers
US8064556B2 (en) * 2005-09-15 2011-11-22 Qualcomm Incorporated Fractionally-spaced equalizers for spread spectrum wireless communication
US20070230546A1 (en) * 2006-03-30 2007-10-04 Shimon Moshavi Equalizer with reduced complexity with application to long delay spread channels
EP2007028B1 (de) 2006-03-31 2015-07-01 NEC Corporation Empfänger
FI20065276A0 (fi) * 2006-04-28 2006-04-28 Nokia Corp Signaalin käsittelymenetelmä, vastaanotin ja tasoitusmenetelmä vastaanottimessa
CN101573888A (zh) * 2006-12-28 2009-11-04 日本电气株式会社 具有接收分集的通信接收机中的数据均衡
EP2100389B1 (de) * 2006-12-28 2015-09-16 NEC Corporation Datenausgleich bei einem kommunikationsempfänger mit sende- und empfangsdiversität
DK3174221T3 (en) * 2007-01-12 2019-01-07 Ericsson Telefon Ab L M Method and device in a wireless communication system
US8611480B1 (en) * 2007-03-26 2013-12-17 Marvell International Ltd. Optimal decoding of transmit diversity code with varying channel characteristics
KR100932260B1 (ko) 2007-05-31 2009-12-16 한국전자통신연구원 다중입력 다중출력 시스템을 위한 복호화 장치 및 그 방법
WO2008147067A1 (en) * 2007-05-31 2008-12-04 Electronics And Telecommunications Research Institute Decoding device and method for mimo system
CN101785207A (zh) * 2007-09-18 2010-07-21 Lm爱立信电话有限公司 一种减少小区间干扰的方法及设备
US7929629B2 (en) * 2008-02-07 2011-04-19 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for improved channel estimation for communications signal processing
CN101630962B (zh) * 2008-07-18 2014-06-25 美满电子科技(上海)有限公司 用于通信设备的联合检测方法、装置以及通信设备
US7733975B1 (en) * 2008-12-31 2010-06-08 Mediatek Inc. Method for estimating phase error in MIMO OFDM communications system
WO2011162422A1 (en) * 2010-06-21 2011-12-29 Pantech Co., Ltd. Transmitter and receiver, method thereof in wireless communication system
SG11201401228XA (en) * 2011-10-21 2014-06-27 Prime Datum Inc Direct drive fan system with variable process control
GB2495991A (en) * 2011-10-28 2013-05-01 Renesas Mobile Corp Mapping long term evolution (LTE) control channels to television channel white spaces (TVWS)
WO2013134506A2 (en) * 2012-03-07 2013-09-12 Hobbit Wave, Inc. Devices and methods using the hermetic transform
US9531431B2 (en) 2013-10-25 2016-12-27 Hobbit Wave, Inc. Devices and methods employing hermetic transforms for encoding and decoding digital information in spread-spectrum communications systems
EP2991441A3 (de) * 2014-08-27 2016-04-06 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Sender-Empfänger, SUDAC, Verfahren zur Signalverarbeitung in einem Sender-Empfänger und Verfahren zur Signalverarbeitung in einem SUDAC
US11304661B2 (en) 2014-10-23 2022-04-19 VertoCOMM, Inc. Enhanced imaging devices, and image construction methods and processes employing hermetic transforms
US9942060B2 (en) * 2015-08-01 2018-04-10 Intel IP Corporation Techniques for performing multiple-input and multiple-output training using a beam refinement packet
US9787356B2 (en) * 2015-09-22 2017-10-10 Nxp Usa, Inc. System and method for large dimension equalization using small dimension equalizers
US9667455B1 (en) 2016-03-23 2017-05-30 Nxp Usa, Inc. System and method for large dimension equalization using small dimension equalizers and bypassed equalizers

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100301284B1 (ko) * 1998-04-10 2001-10-27 곽경섭 씨디엠에이시스템의다중사용자신호의수신방법및수신기
DE19820761C1 (de) 1998-05-08 1999-06-24 Siemens Ag Verfahren und Einrichtung zur Kanalschätzung
ATE223122T1 (de) * 1998-11-18 2002-09-15 Nokia Corp Verfahren zur verbesserten schätzung der kanalimpulsantwort in tdma-systemen
US6122015A (en) * 1998-12-07 2000-09-19 General Electric Company Method and apparatus for filtering digital television signals
CN1897473A (zh) * 1999-09-21 2007-01-17 美商内数位科技公司 可变扩展因数多使用者检测器
US6545990B1 (en) 1999-12-20 2003-04-08 Tantivy Communications, Inc. Method and apparatus for a spectrally compliant cellular communication system
US6963546B2 (en) 2000-03-15 2005-11-08 Interdigital Technology Corp. Multi-user detection using an adaptive combination of joint detection and successive interface cancellation
US6885654B2 (en) 2001-02-06 2005-04-26 Interdigital Technology Corporation Low complexity data detection using fast fourier transform of channel correlation matrix
WO2002067527A2 (en) * 2001-02-22 2002-08-29 Koninklijke Philips Electronics N.V. Multicarrier equalisation using multiplication by a leakage matrix
US7027489B2 (en) 2001-04-06 2006-04-11 Interdigital Technology Corporation Iterative fast fourier transform error correction
US6625203B2 (en) 2001-04-30 2003-09-23 Interdigital Technology Corporation Fast joint detection
KR100383594B1 (ko) * 2001-06-01 2003-05-14 삼성전자주식회사 통신시스템의 하방향링크 공동검출 방법 및 장치
GB2380371A (en) * 2001-10-01 2003-04-02 Ipwireless Inc Method and arrangement for use in a single user detector for a CDMA multi-path system using a finite impulse response filter
US7099299B2 (en) * 2002-03-04 2006-08-29 Agency For Science, Technology And Research CDMA system with frequency domain equalization
US6757321B2 (en) * 2002-05-22 2004-06-29 Interdigital Technology Corporation Segment-wise channel equalization based data estimation
US6928104B2 (en) * 2002-07-18 2005-08-09 Interdigital Technology Corporation Scaling using gain factors for use in data detection for wireless code division multiple access communication systems
AU2003256426A1 (en) * 2002-08-20 2004-03-11 Interdigital Technology Corporation Efficient joint detection
US7408978B2 (en) * 2002-09-09 2008-08-05 Interdigital Technology Corporation Extended algorithm data estimator
US7346103B2 (en) * 2003-03-03 2008-03-18 Interdigital Technology Corporation Multi user detection using equalization and successive interference cancellation
US6873596B2 (en) * 2003-05-13 2005-03-29 Nokia Corporation Fourier-transform based linear equalization for CDMA downlink
US8149960B2 (en) * 2003-05-23 2012-04-03 Zenith Electronics Llc Channel estimation for frequency selective multipath channels with long delay spreads based on an assumed physical channel

Also Published As

Publication number Publication date
KR20090119921A (ko) 2009-11-20
US6937644B2 (en) 2005-08-30
US20090225815A1 (en) 2009-09-10
DE602004008738D1 (de) 2007-10-18
KR100983297B1 (ko) 2010-09-24
ES2293202T3 (es) 2008-03-16
KR100922827B1 (ko) 2009-10-21
US7796678B2 (en) 2010-09-14
US20050013347A1 (en) 2005-01-20
US20080240302A1 (en) 2008-10-02
KR20050098856A (ko) 2005-10-12
NO20053493D0 (no) 2005-07-18
CA2512574A1 (en) 2004-07-29
NO20053493L (no) 2005-09-27
WO2004064298A2 (en) 2004-07-29
KR100708272B1 (ko) 2007-04-17
WO2004064298A3 (en) 2005-03-17
US20060233223A1 (en) 2006-10-19
KR20050095904A (ko) 2005-10-04
US7079570B2 (en) 2006-07-18
MXPA05007461A (es) 2005-09-12
KR100947008B1 (ko) 2010-03-11
JP2006515969A (ja) 2006-06-08
CN1723629A (zh) 2006-01-18
US7545851B2 (en) 2009-06-09
DE602004008738T2 (de) 2008-06-12
US20050213640A1 (en) 2005-09-29
KR20090061679A (ko) 2009-06-16
KR20090006880A (ko) 2009-01-15
JP4015170B2 (ja) 2007-11-28
EP1582008A2 (de) 2005-10-05
US7386033B2 (en) 2008-06-10
DK1582008T3 (da) 2008-01-21
EP1582008A4 (de) 2006-03-15
EP1582008B1 (de) 2007-09-05

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