NO20081291L - Flerbrukerdetektor for variable spredningsfaktorer - Google Patents

Flerbrukerdetektor for variable spredningsfaktorer

Info

Publication number
NO20081291L
NO20081291L NO20081291A NO20081291A NO20081291L NO 20081291 L NO20081291 L NO 20081291L NO 20081291 A NO20081291 A NO 20081291A NO 20081291 A NO20081291 A NO 20081291A NO 20081291 L NO20081291 L NO 20081291L
Authority
NO
Norway
Prior art keywords
receiver
system transmission
cholesky decomposition
multiuser
transmission response
Prior art date
Application number
NO20081291A
Other languages
English (en)
Inventor
Ariela Zeira
Alexander Reznik
Timothy J Lubecki
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
Publication of NO20081291L publication Critical patent/NO20081291L/no
Application filed by Interdigital Tech Corp filed Critical Interdigital Tech Corp

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

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mathematical Physics (AREA)
  • Physics & Mathematics (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)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Push-Button Switches (AREA)
  • Fire Alarms (AREA)
  • Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
  • Complex Calculations (AREA)
  • Measurement Of Radiation (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

En flerbrukerdetektor som detekterer og dekoder synkrone eller asynkrone CDMA-delkanaler med forskjellige spredingsfaktorer med redusert beregningskompleksitet. Foreliggende flerbrukerdetektorer er kompatible med ZF-BLE, MMSE, dekorreleringsdetektorer og liknende ved bruk av Cholesky-dekomponering for å minimalisere numeriske operasjoner. Systemet og fremgangsmåten anordner kolonnene i systemtransmisjonsresponsmatrisene som representerer individuelle brukeres responskarakteristikker i en vel båndet totalsystemtransmisjonsresponsmatrise som representerer flere matchete filterresponser for en gitt blokk av mottatte data. I sammenheng med Cholesky-dekomponering, reduserer oppfinnelsen antallet av nødvendige matematiske operasjoner forut for parallell matchet filtrering.
NO20081291A 1999-09-21 2008-03-11 Flerbrukerdetektor for variable spredningsfaktorer NO20081291L (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 (1)

Publication Number Publication Date
NO20081291L true NO20081291L (no) 2002-05-15

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 Before (1)

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

Country Status (19)

Country Link
US (2) US7136369B2 (no)
EP (1) EP1214796B1 (no)
JP (2) JP4365063B2 (no)
KR (3) KR100495758B1 (no)
CN (3) CN1897473A (no)
AT (1) ATE287149T1 (no)
AU (1) AU2636500A (no)
BR (1) BR0014206A (no)
CA (1) CA2385082C (no)
DE (2) DE60017424T2 (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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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
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
WO2014052992A1 (en) 2012-11-07 2014-04-03 Massachusetts Institute Of Technology Cognitive radio method and apparatus for achieving ad hoc interference multiple access wireless communication
US9998199B2 (en) 2013-03-14 2018-06-12 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
WO2016114844A2 (en) 2014-11-03 2016-07-21 Massachusetts Institute Of Technology Method and apparatus for 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
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US11637613B1 (en) 2019-05-21 2023-04-25 Massachusetts Institute Of Technology Method and apparatus for determining a receiver beam in a co-existence cognitive radio
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Also Published As

Publication number Publication date
CN100425010C (zh) 2008-10-08
KR20040097241A (ko) 2004-11-17
ES2234566T3 (es) 2005-07-01
US7136369B2 (en) 2006-11-14
NO325841B1 (no) 2008-07-28
EP1214796B1 (en) 2005-01-12
HK1046338B (zh) 2005-08-19
DE1214796T1 (de) 2002-11-28
TW493321B (en) 2002-07-01
CA2385082C (en) 2008-04-08
WO2001022610A9 (en) 2004-04-01
SG152901A1 (en) 2009-06-29
HK1046338A1 (en) 2003-01-03
CN1201499C (zh) 2005-05-11
CA2385082A1 (en) 2001-03-29
US20080198828A1 (en) 2008-08-21
BR0014206A (pt) 2002-05-21
AU2636500A (en) 2001-04-24
ATE287149T1 (de) 2005-01-15
DE60017424D1 (de) 2005-02-17
IL182118A (en) 2009-07-20
KR20050039883A (ko) 2005-04-29
KR100495758B1 (ko) 2005-06-16
DE60017424T2 (de) 2005-12-29
IL148607A (en) 2007-07-04
IL182118A0 (en) 2007-07-24
JP2008017520A (ja) 2008-01-24
JP4365063B2 (ja) 2009-11-18
MXPA02002819A (es) 2003-07-21
WO2001022610A1 (en) 2001-03-29
IL195539A (en) 2011-08-31
NO20021307L (no) 2002-05-15
JP2003510884A (ja) 2003-03-18
CN1376338A (zh) 2002-10-23
NO20021307D0 (no) 2002-03-15
DK1214796T3 (da) 2005-04-04
US7778232B2 (en) 2010-08-17
CN1897473A (zh) 2007-01-17
IL148607A0 (en) 2002-09-12
KR100493750B1 (ko) 2005-06-07
KR20020038934A (ko) 2002-05-24
CN1674456A (zh) 2005-09-28
EP1214796A1 (en) 2002-06-19
US20020176392A1 (en) 2002-11-28

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