BR0014206A - Métodos para montagem em um processador de uma matriz de respostas, e de detecção em uma comunicação de cdma recebida de uma pluralidade de comunicações de dados, e, detector de multiusuários - Google Patents

Métodos para montagem em um processador de uma matriz de respostas, e de detecção em uma comunicação de cdma recebida de uma pluralidade de comunicações de dados, e, detector de multiusuários

Info

Publication number
BR0014206A
BR0014206A BR0014206-9A BR0014206A BR0014206A BR 0014206 A BR0014206 A BR 0014206A BR 0014206 A BR0014206 A BR 0014206A BR 0014206 A BR0014206 A BR 0014206A
Authority
BR
Brazil
Prior art keywords
receiver
response matrix
processor
detection
assembly
Prior art date
Application number
BR0014206-9A
Other languages
English (en)
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 BR0014206A publication Critical patent/BR0014206A/pt

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)
  • 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)
  • Circuits Of Receivers In General (AREA)
  • Eye Examination Apparatus (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Radio Relay Systems (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Fire Alarms (AREA)
  • Push-Button Switches (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Complex Calculations (AREA)
  • Measurement Of Radiation (AREA)
  • Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)

Abstract

"MéTODOS PARA MONTAGEM EM UM PROCESSADOR DE UMA MATRIZ DE RESPOSTAS, E DE DETECçãO EM UMA COMUNICAçãO DE CDMA RECEBIDA DE UMA PLURALIDADE DE COMUNICAçõES DE DADOS, E, DETECTOR DE MULTIUSUáRIOS". Um detector de multiusuários que detecta e decodifica subcanais síncronos e assícronos de CDMA, tendo diferentes fatores de espalhamento com complexidade computacional reduzida. O detector de multiusuários é compatível com ZF-BLE, MMSE, detectores de descorrelação e semelhantes usando a decomposição de Cholesky para minimizar operações numéricas. O sistema e método dispõem as colunas de matrizes de resposta de transmissão do sistema, representando as características de resposta de usuários individuais em um matriz de resposta de transmissão de sistema total, que representa uma pluralidade de respostas de filtro associado para um dado bloco de dados recebidos. A invenção em conjunto com a decomposição de Cholesky reduz o número de operações matemáticas requeridas antes da filtração associada paralela.
BR0014206-9A 1999-09-21 2000-02-02 Métodos para montagem em um processador de uma matriz de respostas, e de detecção em uma comunicação de cdma recebida de uma pluralidade de comunicações de dados, e, detector de multiusuários BR0014206A (pt)

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
BR0014206A true BR0014206A (pt) 2002-05-21

Family

ID=22553662

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0014206-9A BR0014206A (pt) 1999-09-21 2000-02-02 Métodos para montagem em um processador de uma matriz de respostas, e de detecção em uma comunicação de cdma recebida de uma pluralidade de comunicações de dados, e, detector de multiusuários

Country Status (19)

Country Link
US (2) US7136369B2 (pt)
EP (1) EP1214796B1 (pt)
JP (2) JP4365063B2 (pt)
KR (3) KR100493750B1 (pt)
CN (3) CN1201499C (pt)
AT (1) ATE287149T1 (pt)
AU (1) AU2636500A (pt)
BR (1) BR0014206A (pt)
CA (1) CA2385082C (pt)
DE (2) DE1214796T1 (pt)
DK (1) DK1214796T3 (pt)
ES (1) ES2234566T3 (pt)
HK (1) HK1046338B (pt)
IL (4) IL148607A0 (pt)
MX (1) MXPA02002819A (pt)
NO (2) NO325841B1 (pt)
SG (1) SG152901A1 (pt)
TW (1) TW493321B (pt)
WO (1) WO2001022610A1 (pt)

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Also Published As

Publication number Publication date
NO325841B1 (no) 2008-07-28
CA2385082C (en) 2008-04-08
KR100493750B1 (ko) 2005-06-07
HK1046338B (en) 2005-08-19
EP1214796B1 (en) 2005-01-12
CN1201499C (zh) 2005-05-11
DE1214796T1 (de) 2002-11-28
EP1214796A1 (en) 2002-06-19
TW493321B (en) 2002-07-01
WO2001022610A9 (en) 2004-04-01
DE60017424D1 (de) 2005-02-17
IL148607A0 (en) 2002-09-12
JP4365063B2 (ja) 2009-11-18
CN1674456A (zh) 2005-09-28
KR20050039883A (ko) 2005-04-29
WO2001022610A1 (en) 2001-03-29
IL195539A (en) 2011-08-31
DE60017424T2 (de) 2005-12-29
CA2385082A1 (en) 2001-03-29
CN1897473A (zh) 2007-01-17
KR20040097241A (ko) 2004-11-17
ES2234566T3 (es) 2005-07-01
US20020176392A1 (en) 2002-11-28
KR100495758B1 (ko) 2005-06-16
SG152901A1 (en) 2009-06-29
HK1046338A1 (en) 2003-01-03
MXPA02002819A (es) 2003-07-21
NO20021307L (no) 2002-05-15
AU2636500A (en) 2001-04-24
JP2003510884A (ja) 2003-03-18
CN100425010C (zh) 2008-10-08
DK1214796T3 (da) 2005-04-04
NO20021307D0 (no) 2002-03-15
IL148607A (en) 2007-07-04
IL182118A0 (en) 2007-07-24
JP2008017520A (ja) 2008-01-24
KR20020038934A (ko) 2002-05-24
IL182118A (en) 2009-07-20
US7778232B2 (en) 2010-08-17
CN1376338A (zh) 2002-10-23
ATE287149T1 (de) 2005-01-15
US20080198828A1 (en) 2008-08-21
NO20081291L (no) 2002-05-15
US7136369B2 (en) 2006-11-14

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