NO20021307L - Flerbrukerdetektor for variable spredningsfaktorer - Google Patents

Flerbrukerdetektor for variable spredningsfaktorer

Info

Publication number
NO20021307L
NO20021307L NO20021307A NO20021307A NO20021307L NO 20021307 L NO20021307 L NO 20021307L NO 20021307 A NO20021307 A NO 20021307A NO 20021307 A NO20021307 A NO 20021307A NO 20021307 L NO20021307 L NO 20021307L
Authority
NO
Norway
Prior art keywords
receiver
spreading factors
system transmission
cholesky decomposition
multiuser
Prior art date
Application number
NO20021307A
Other languages
English (en)
Other versions
NO325841B1 (no
NO20021307D0 (no
Inventor
Alexander Reznik
Timothy J Lubecki
Ariela Zeira
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 NO20021307D0 publication Critical patent/NO20021307D0/no
Publication of NO20021307L publication Critical patent/NO20021307L/no
Publication of NO325841B1 publication Critical patent/NO325841B1/no

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
    • H04B1/7105—Joint detection techniques, e.g. linear detectors
    • 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
    • H04B1/709—Correlator structure
    • H04B1/7093—Matched filter type
    • 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

  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Burglar Alarm Systems (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Particle Accelerators (AREA)
  • Eye Examination Apparatus (AREA)
  • Circuits Of Receivers In General (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Radio Relay Systems (AREA)
  • Push-Button Switches (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Fire Alarms (AREA)
  • Complex Calculations (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Measurement Of Radiation (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
NO20021307A 1999-09-21 2002-03-15 Flerbrukerdetektor for variable spredningsfaktorer NO325841B1 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15498599P 1999-09-21 1999-09-21
PCT/US2000/002621 WO2001022610A1 (en) 1999-09-21 2000-02-02 Multiuser detector for variable spreading factors

Publications (3)

Publication Number Publication Date
NO20021307D0 NO20021307D0 (no) 2002-03-15
NO20021307L true NO20021307L (no) 2002-05-15
NO325841B1 NO325841B1 (no) 2008-07-28

Family

ID=22553662

Family Applications (2)

Application Number Title Priority Date Filing Date
NO20021307A NO325841B1 (no) 1999-09-21 2002-03-15 Flerbrukerdetektor for variable spredningsfaktorer
NO20081291A NO20081291L (no) 1999-09-21 2008-03-11 Flerbrukerdetektor for variable spredningsfaktorer

Family Applications After (1)

Application Number Title Priority Date Filing Date
NO20081291A NO20081291L (no) 1999-09-21 2008-03-11 Flerbrukerdetektor for variable spredningsfaktorer

Country Status (19)

Country Link
US (2) US7136369B2 (no)
EP (1) EP1214796B1 (no)
JP (2) JP4365063B2 (no)
KR (3) KR100493750B1 (no)
CN (3) CN100425010C (no)
AT (1) ATE287149T1 (no)
AU (1) AU2636500A (no)
BR (1) BR0014206A (no)
CA (1) CA2385082C (no)
DE (2) DE1214796T1 (no)
DK (1) DK1214796T3 (no)
ES (1) ES2234566T3 (no)
HK (1) HK1046338B (no)
IL (4) IL148607A0 (no)
MX (1) MXPA02002819A (no)
NO (2) NO325841B1 (no)
SG (1) SG152901A1 (no)
TW (1) TW493321B (no)
WO (1) WO2001022610A1 (no)

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ES2234566T3 (es) * 1999-09-21 2005-07-01 Interdigital Technology Corporation Detector multiusuario para factores de ensanche variables.
US6714527B2 (en) * 1999-09-21 2004-03-30 Interdigital Techology Corporation Multiuser detector for variable spreading factors
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
US20040004945A1 (en) * 2001-10-22 2004-01-08 Peter Monsen Multiple access network and method for digital radio systems
US6741653B2 (en) * 2002-07-01 2004-05-25 Interdigital Technology Corporation Data detection for codes with non-uniform spreading factors
JP4316500B2 (ja) * 2002-07-19 2009-08-19 インターデイジタル テクノロジー コーポレーション 受信ダイバーシティを用いるブロック送信のためのグループ単位連続干渉キャンセル
KR100557102B1 (ko) * 2002-09-07 2006-03-03 삼성전자주식회사 이동통신 시스템에서 직교부호의 길이에 상관없는 공동검출 수신 장치 및 방법
CN1186950C (zh) * 2002-11-13 2005-01-26 大唐移动通信设备有限公司 扩谱系数可变的多用户解调方法
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
WO2004047346A1 (en) * 2002-11-19 2004-06-03 Bae Systems Information And Electronic Systems Integration Inc Bandwidth efficient wirless network modem
DE602004008738T2 (de) * 2003-01-10 2008-06-12 Interdigital Technology Corporation, Wilmington Verallgemeinerte zweistufige datenschätzung
US8064494B2 (en) * 2003-05-28 2011-11-22 Qualcomm Incorporated Last finger polling for rake receivers
CN100433603C (zh) * 2003-06-24 2008-11-12 华为技术有限公司 一种码多分址（cdma）通信系统中的多用户检测方法
EP1636709B1 (en) * 2003-06-25 2016-05-25 Collision Communications, Inc. Windowed multiuser detection
US7236546B2 (en) 2003-09-10 2007-06-26 Bae Systems Information And Electronic Systems Integration Inc. Pipelined turbo multiuser detection
US8503328B2 (en) 2004-09-01 2013-08-06 Qualcomm Incorporated Methods and apparatus for transmission of configuration information in a wireless communication network
GB2418327A (en) * 2004-09-17 2006-03-22 Toshiba Res Europ Ltd Common channel interference cancellation in a CDMA system
US7610025B2 (en) 2005-03-29 2009-10-27 Qualcomm Incorporated Antenna array pattern distortion mitigation
CN101170527B (zh) * 2006-10-24 2010-07-14 中兴通讯股份有限公司 一种基于mmse的mlse简化检测方法及其装置
GB2463872B (en) 2008-09-24 2012-04-18 Toshiba Res Europ Ltd A MMSE equaliser
US8879378B2 (en) * 2010-05-28 2014-11-04 Selim Shlomo Rakib Orthonormal time-frequency shifting and spectral shaping communications method
US9071285B2 (en) 2011-05-26 2015-06-30 Cohere Technologies, Inc. Modulation and equalization in an orthonormal time-frequency shifting communications system
US9130638B2 (en) 2011-05-26 2015-09-08 Cohere Technologies, Inc. Modulation and equalization in an orthonormal time-frequency shifting communications system
US9369550B2 (en) * 2011-11-11 2016-06-14 Pismo Labs Technology Limited Protocol for layer two multiple network links tunnelling
US10044841B2 (en) 2011-11-11 2018-08-07 Pismo Labs Technology Limited Methods and systems for creating protocol header for embedded layer two packets
US10411843B2 (en) 2012-06-25 2019-09-10 Cohere Technologies, Inc. Orthogonal time frequency space communication system compatible with OFDM
US10469215B2 (en) 2012-06-25 2019-11-05 Cohere Technologies, Inc. Orthogonal time frequency space modulation system for the Internet of Things
US9148804B2 (en) 2012-11-07 2015-09-29 Massachusetts Institute Of Technology Method and apparatus for making optimal use of an asymmetric interference channel in wireless communication systems
WO2013180816A2 (en) * 2012-11-07 2013-12-05 Massachusetts Institute Of Technology Method and apparatus for rate determination in a radio frequency system
US10091798B2 (en) 2012-11-07 2018-10-02 Massachusetts Institute Of Technology Cognitive radio method and apparatus for achieving ad hoc interference multiple access wireless communication
US9693361B2 (en) 2012-11-07 2017-06-27 Massachusetts Institute Of Technology Cognitive radio method and apparatus for achieving ad hoc interference multiple access wireless communication
WO2013185150A1 (en) 2013-03-14 2013-12-12 Massachusetts Institute Of Technology Method and apparatus for smart adaptive dynamic range multiuser detection radio receiver
US9699665B2 (en) 2014-06-16 2017-07-04 Massachusetts Institute Of Technology Cognitive radio method and apparatus for achieving ad hoc interference multiple access wireless communication
US10299281B2 (en) 2014-06-16 2019-05-21 Massachusetts Institute Of Technology Cognitive radio method and apparatus for achieving ad hoc interference multiple access wireless communication
US10159004B2 (en) 2014-11-03 2018-12-18 Massachusetts Institute Of Technology Message fractionation and physical layer channel assignment for multiuser detection-enabled wireless communication among adaptive interference
US10574317B2 (en) 2015-06-18 2020-02-25 Cohere Technologies, Inc. System and method for providing wireless communication services using configurable broadband infrastructure shared among multiple network operators
US11522600B1 (en) 2018-08-01 2022-12-06 Cohere Technologies, Inc. Airborne RF-head system
US11690090B2 (en) 2019-05-21 2023-06-27 Massachusetts Institute Of Technology Mitigation of communication signal interference using adaptive transmit power
US11005507B2 (en) 2019-06-14 2021-05-11 Massachusetts Institute Of Technology Targeted ratio of signal power to interference plus noise power for enhancement of a multi-user detection receiver

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EP0767543A3 (de) 1995-10-06 2000-07-26 Siemens Aktiengesellschaft Kodemultiplexnachrichtenübertragung mit Interferenzunterdrückung
FI100041B (fi) * 1995-12-29 1997-08-29 Nokia Telecommunications Oy Menetelmä signaalin ja kohinan laadun estimoimiseksi ja vastaanotin
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KR19990052334A (ko) * 1997-12-22 1999-07-05 서평원 직접확산 코드분할 다중접속 시스템의 다중사용자 검파장치 및 방법
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US6463097B1 (en) * 1998-10-16 2002-10-08 Koninklijke Philips Electronics N.V. Rate detection in direct sequence code division multiple access systems
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US6714527B2 (en) * 1999-09-21 2004-03-30 Interdigital Techology Corporation Multiuser detector for variable spreading factors
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Also Published As

Publication number Publication date
TW493321B (en) 2002-07-01
IL182118A0 (en) 2007-07-24
IL148607A (en) 2007-07-04
MXPA02002819A (es) 2003-07-21
US20020176392A1 (en) 2002-11-28
CN1201499C (zh) 2005-05-11
KR20020038934A (ko) 2002-05-24
CA2385082C (en) 2008-04-08
HK1046338A1 (en) 2003-01-03
KR100493750B1 (ko) 2005-06-07
SG152901A1 (en) 2009-06-29
IL182118A (en) 2009-07-20
WO2001022610A1 (en) 2001-03-29
CN1674456A (zh) 2005-09-28
KR20040097241A (ko) 2004-11-17
JP2003510884A (ja) 2003-03-18
HK1046338B (zh) 2005-08-19
WO2001022610A9 (en) 2004-04-01
BR0014206A (pt) 2002-05-21
CN100425010C (zh) 2008-10-08
DE60017424D1 (de) 2005-02-17
NO325841B1 (no) 2008-07-28
NO20021307D0 (no) 2002-03-15
CN1897473A (zh) 2007-01-17
AU2636500A (en) 2001-04-24
CA2385082A1 (en) 2001-03-29
US7136369B2 (en) 2006-11-14
DE1214796T1 (de) 2002-11-28
EP1214796A1 (en) 2002-06-19
CN1376338A (zh) 2002-10-23
ATE287149T1 (de) 2005-01-15
ES2234566T3 (es) 2005-07-01
US20080198828A1 (en) 2008-08-21
US7778232B2 (en) 2010-08-17
DK1214796T3 (da) 2005-04-04
IL148607A0 (en) 2002-09-12
IL195539A (en) 2011-08-31
KR100495758B1 (ko) 2005-06-16
EP1214796B1 (en) 2005-01-12
NO20081291L (no) 2002-05-15
DE60017424T2 (de) 2005-12-29
KR20050039883A (ko) 2005-04-29
JP2008017520A (ja) 2008-01-24
JP4365063B2 (ja) 2009-11-18

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