TWI318828B - Multiuser detector for variable spreading factors - Google Patents

Multiuser detector for variable spreading factors

Info

Publication number
TWI318828B
TWI318828B TW093105986A TW93105986A TWI318828B TW I318828 B TWI318828 B TW I318828B TW 093105986 A TW093105986 A TW 093105986A TW 93105986 A TW93105986 A TW 93105986A TW I318828 B TWI318828 B TW I318828B
Authority
TW
Taiwan
Prior art keywords
matrix
spreading factor
derived
factor group
spreading factors
Prior art date
Application number
TW093105986A
Other languages
English (en)
Other versions
TW200505180A (en
Inventor
Kim Younglok
Jung-Lin Pan
Zeira Ariela
Reznik Alexander
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 TW200505180A publication Critical patent/TW200505180A/zh
Application granted granted Critical
Publication of TWI318828B publication Critical patent/TWI318828B/zh

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
    • H04B1/7103—Interference-related aspects the interference being multiple access 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
    • H04B1/7105—Joint detection techniques, e.g. linear detectors
    • H04B1/71052—Joint detection techniques, e.g. linear detectors using decorrelation matrix
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H03M13/23—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using convolutional codes, e.g. unit memory codes
    • 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
    • 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
    • H04B2201/70703—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation using multiple or variable rates
    • 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
    • H04B2201/70703—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation using multiple or variable rates
    • H04B2201/70705—Rate detection

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Burglar Alarm Systems (AREA)
  • Particle Accelerators (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Radio Relay Systems (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Stereo-Broadcasting Methods (AREA)
TW093105986A 2002-06-18 2003-06-12 Multiuser detector for variable spreading factors TWI318828B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/174,121 US6714527B2 (en) 1999-09-21 2002-06-18 Multiuser detector for variable spreading factors

Publications (2)

Publication Number Publication Date
TW200505180A TW200505180A (en) 2005-02-01
TWI318828B true TWI318828B (en) 2009-12-21

Family

ID=29733502

Family Applications (3)

Application Number Title Priority Date Filing Date
TW095120454A TWI342680B (en) 2002-06-18 2003-06-12 Multiuser detector for variable spreading factors
TW092116024A TWI237455B (en) 2002-06-18 2003-06-12 Multiuser detector for variable spreading factors
TW093105986A TWI318828B (en) 2002-06-18 2003-06-12 Multiuser detector for variable spreading factors

Family Applications Before (2)

Application Number Title Priority Date Filing Date
TW095120454A TWI342680B (en) 2002-06-18 2003-06-12 Multiuser detector for variable spreading factors
TW092116024A TWI237455B (en) 2002-06-18 2003-06-12 Multiuser detector for variable spreading factors

Country Status (11)

Country Link
US (3) US6714527B2 (zh)
EP (1) EP1525696B1 (zh)
JP (1) JP4083740B2 (zh)
KR (2) KR100630861B1 (zh)
CN (1) CN1663160B (zh)
AT (1) ATE335324T1 (zh)
AU (1) AU2003248665A1 (zh)
DE (1) DE60307282T2 (zh)
ES (1) ES2270098T3 (zh)
TW (3) TWI342680B (zh)
WO (1) WO2003107688A2 (zh)

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US6714527B2 (en) * 1999-09-21 2004-03-30 Interdigital Techology Corporation Multiuser detector for variable spreading factors
KR20050039883A (ko) * 1999-09-21 2005-04-29 인터디지탈 테크날러지 코포레이션 가변 확산 인자용 멀티유저 검출기
ATE329414T1 (de) * 1999-10-19 2006-06-15 Interdigital Tech Corp Empfänger zur mehrbenutzererkennung von cdma- signalen
FR2822568B1 (fr) * 2001-03-22 2003-06-06 Mitsubishi Electric Inf Tech Methode et dispositif d'egalisation de type gmmse
ATE283580T1 (de) * 2001-07-05 2004-12-15 Mitsubishi Electric Inf Tech Mehrbenutzerdetektion in einem mc-cdma telekommunikationssystem
EP1300977A1 (en) * 2001-10-04 2003-04-09 Mitsubishi Electric Information Technology Centre Europe B.V. Parallel interference cancellation in an MC-CDMA telecommunication system
US7218624B2 (en) * 2001-11-14 2007-05-15 Interdigital Technology Corporation User equipment and base station performing data detection using a scalar array
US20050237919A1 (en) * 2002-06-21 2005-10-27 Hartmut Pettendorf Generation of orthogonal codes
US6741653B2 (en) * 2002-07-01 2004-05-25 Interdigital Technology Corporation Data detection for codes with non-uniform spreading factors
US7596134B2 (en) * 2002-07-03 2009-09-29 Freescale Semiconductor, Inc. Flexible method and apparatus for performing digital modulation and demodulation
CN1170389C (zh) * 2002-11-13 2004-10-06 大唐移动通信设备有限公司 在联合检测系统中应用长小区化码的方法
US7245673B2 (en) * 2003-06-25 2007-07-17 Bae Systems Information And Electronic Systems Integration Inc. Windowed multiuser detection
US6870502B1 (en) * 2003-08-29 2005-03-22 Raytheon Company Advanced asynchronous pulse detector
US20050232340A1 (en) * 2004-04-16 2005-10-20 Lucent Technologies, Inc. Intelligent antenna receiver architecture
US7599344B2 (en) * 2004-06-08 2009-10-06 Interdigital Technology Corporation Method and apparatus for reducing multi-user processing in wireless communication systems
US7116705B2 (en) * 2004-11-08 2006-10-03 Interdigital Technology Corporation Method and apparatus for reducing the processing rate of a chip-level equalization receiver
US7570689B2 (en) * 2005-02-14 2009-08-04 Interdigital Technology Corporation Advanced receiver with sliding window block linear equalizer
CA2515996A1 (en) * 2005-08-15 2007-02-15 Research In Motion Limited Joint space-time optimum filters (jstof) for interference cancellation
US7733996B2 (en) 2005-05-25 2010-06-08 Research In Motion Limited Joint space-time optimum filters (JSTOF) for interference cancellation
CA2515867A1 (en) * 2005-08-15 2007-02-15 Research In Motion Limited Implementation of joint space-time optimum filters (jstof) using cholesky and eigenvalue decompositions
CA2516192A1 (en) * 2005-08-15 2007-02-15 Research In Motion Limited Implementation of joint space-time optimum filters (jstof) using qr and eigenvalue decompositions
CA2516124A1 (en) * 2005-08-15 2007-02-15 Research In Motion Limited Implementation of joint space-time optimum filters (jstof) using singular value decompositions
CA2515997A1 (en) * 2005-08-15 2007-02-15 Research In Motion Limited Implementation of joint space-time optimum filters (jstof) using qr and eigenvalue decompositions
CA2515932A1 (en) * 2005-08-15 2007-02-15 Research In Motion Limited Implementation of joint space-time optimum filters (jstof) using cholesky and eigenvalue decompositions
WO2014169048A1 (en) * 2013-04-09 2014-10-16 Interdigital Patent Holdings, Inc. Joint precoding and multivariate backhaul compression for the downlink of cloud radio access networks
WO2018236078A1 (ko) * 2017-06-19 2018-12-27 엘지전자 주식회사 무선통신시스템에서 직교 또는 비직교 부호 다중 접속 기법을 사용하여 통신을 수행하는 방법 및 장치
CN113269765B (zh) * 2021-06-04 2022-10-28 重庆大学 可扩张卷积神经网络训练方法及ct影像分割模型构建方法

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KR20050039883A (ko) * 1999-09-21 2005-04-29 인터디지탈 테크날러지 코포레이션 가변 확산 인자용 멀티유저 검출기
JP2001111456A (ja) 1999-10-06 2001-04-20 Nec Corp Ｃｄｍａ受信機及び受信方法
ATE329414T1 (de) * 1999-10-19 2006-06-15 Interdigital Tech Corp Empfänger zur mehrbenutzererkennung von cdma- signalen
IT1314346B1 (it) 1999-12-30 2002-12-09 Telit Mobile Terminals Spa Metodo e dispositivo per la generazione di codici ortogonali a fattore di spreading variabile o righe di matricidi hadamard per sistemi di
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Also Published As

Publication number Publication date
WO2003107688A2 (en) 2003-12-24
DE60307282T2 (de) 2007-08-09
US20030021249A1 (en) 2003-01-30
EP1525696A2 (en) 2005-04-27
CN1663160B (zh) 2013-01-02
ES2270098T3 (es) 2007-04-01
WO2003107688A3 (en) 2004-03-04
AU2003248665A1 (en) 2003-12-31
US20040165567A1 (en) 2004-08-26
KR20050096205A (ko) 2005-10-05
KR20050013580A (ko) 2005-02-04
AU2003248665A8 (en) 2003-12-31
JP2005530424A (ja) 2005-10-06
KR100959325B1 (ko) 2010-05-26
TW200718046A (en) 2007-05-01
KR100630861B1 (ko) 2006-10-04
EP1525696A4 (en) 2005-08-10
JP4083740B2 (ja) 2008-04-30
TWI342680B (en) 2011-05-21
EP1525696B1 (en) 2006-08-02
US7443828B2 (en) 2008-10-28
DE60307282D1 (de) 2006-09-14
ATE335324T1 (de) 2006-08-15
TW200505180A (en) 2005-02-01
US8116220B2 (en) 2012-02-14
TW200401517A (en) 2004-01-16
CN1663160A (zh) 2005-08-31
US6714527B2 (en) 2004-03-30
TWI237455B (en) 2005-08-01
US20090046692A1 (en) 2009-02-19

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