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MX9700522A - Sistema y metodo anulador de interferencia de espectro de diseminacion. - Google Patents

Sistema y metodo anulador de interferencia de espectro de diseminacion.

Info

Publication number
MX9700522A
MX9700522A MX9700522A MX9700522A MX9700522A MX 9700522 A MX9700522 A MX 9700522A MX 9700522 A MX9700522 A MX 9700522A MX 9700522 A MX9700522 A MX 9700522A MX 9700522 A MX9700522 A MX 9700522A
Authority
MX
Mexico
Prior art keywords
spread
spectrum
chip
signal
code
Prior art date
Application number
MX9700522A
Other languages
English (en)
Other versions
MXPA97000522A (es
Inventor
Donald L Schilling
John Kowalski
Shimon Moshavi
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23069142&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=MX9700522(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Interdigital Tech Corp filed Critical Interdigital Tech Corp
Publication of MX9700522A publication Critical patent/MX9700522A/es
Publication of MXPA97000522A publication Critical patent/MXPA97000522A/es

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
    • 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
    • H04B1/7107—Subtractive interference cancellation
    • H04B1/71075—Parallel interference cancellation
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Paper (AREA)
  • Holo Graphy (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Radio Relay Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Optical Communication System (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

Se describe un anulador de interferencia de CDMA de espectro de diseminacion para reducir la interferencia en un receptor de DS/CDMA que tiene canales de codigo de chip N. El anulador de interferencia incluye una pluralidad de correlacionadores (54, 64, 74), una pluralidad de circuitos de procedimiento de espectro de diseminacion (65, 65, 75), circuitos de sustraccion (150), y correlacionadores de canal (146). Utilizando una pluralidad de señales de codigo de chip generadas a partir de generadores de señal de palabra clave de chip (52, 62, 72), los correlacionadores (54, 64, 74) no diseminan la señal de CDMA de espectro de diseminacion como una pluralidad de señales no diseminadas. La pluralidad de circuitos de procesamiento de espectro de diseminacion (55, 65, 75) utiliza una version de tiempo controlado de la pluralidad de señales de codigo de chip generadas de los dispositivos de retraso (53, 63, 73), para procesar por espectro de diseminacion la pluralidad de señales no diseminadas. Para recuperar un canal de codigo utilizando una señal de codigo de chip iava, los circuitos de sustraccion (150) sustraen la señal de CDMA de espectro de diseminacion , cada una de las señales no diseminadas procesadas por espectro de diseminacion N-1 generando así una señal sustraída. El canal-correlacionador (146) no disemina la señal sustraída.
MXPA/A/1997/000522A 1994-07-26 1995-07-05 Sistema y metodo anulador de interferencia de espectro de diseminacion MXPA97000522A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/279,477 US5553062A (en) 1993-04-22 1994-07-26 Spread spectrum CDMA interference canceler system and method
US08279477 1994-07-26
PCT/US1995/009652 WO1996003819A1 (en) 1994-07-26 1995-07-05 Spread spectrum interference canceler system and method

Publications (2)

Publication Number Publication Date
MX9700522A true MX9700522A (es) 1998-05-31
MXPA97000522A MXPA97000522A (es) 1998-10-23

Family

ID=

Also Published As

Publication number Publication date
HK1066657A1 (en) 2005-03-24
US20020172173A1 (en) 2002-11-21
SE527579C2 (sv) 2006-04-11
CN1154770A (zh) 1997-07-16
CN1503493A (zh) 2004-06-09
DK200700411A (da) 2007-03-19
US7167462B2 (en) 2007-01-23
CA2195534A1 (en) 1996-02-08
DK1033840T3 (da) 2008-01-14
FI970276A (fi) 1997-01-23
CN1337797A (zh) 2002-02-27
DE772928T1 (de) 1999-12-30
US20020167925A1 (en) 2002-11-14
SE0302105L (sv) 2003-07-21
WO1996003819A1 (en) 1996-02-08
DK8997A (da) 1997-01-24
CN1501611B (zh) 2011-05-25
DK0772928T3 (da) 2003-01-13
DK200700410A (da) 2007-03-19
AU701816B2 (en) 1999-02-04
DE69535594T2 (de) 2008-06-12
JP3153894B2 (ja) 2001-04-09
CN1252957C (zh) 2006-04-19
CN1165125C (zh) 2004-09-01
BR9510804B1 (pt) 2009-08-11
US6868078B2 (en) 2005-03-15
NZ290723A (en) 1998-05-27
CA2552443C (en) 2010-10-05
NZ314383A (en) 1998-02-26
FI115430B (fi) 2005-04-29
US20070258412A1 (en) 2007-11-08
DE1033840T1 (de) 2001-02-08
CN1490966A (zh) 2004-04-21
US7161919B2 (en) 2007-01-09
CN1503493B (zh) 2010-05-12
SE9700184D0 (sv) 1997-01-23
US20010019548A1 (en) 2001-09-06
EP1860811B1 (en) 2010-03-10
CA2342454A1 (en) 1996-02-08
DE19581709T1 (de) 1998-10-29
HK1050967A1 (en) 2003-07-11
DE69528275D1 (de) 2002-10-24
ATE373355T1 (de) 2007-09-15
DK1860811T3 (da) 2010-06-28
US20030002463A1 (en) 2003-01-02
EP1860811A1 (en) 2007-11-28
US20020191571A1 (en) 2002-12-19
EP0772928B1 (en) 2002-09-18
JP3377983B2 (ja) 2003-02-17
CA2369499A1 (en) 1996-02-08
ES2151461T3 (es) 2008-04-01
SE0702343L (sv) 2007-10-19
CA2552443A1 (en) 1996-02-08
US7164668B2 (en) 2007-01-16
US20020186673A1 (en) 2002-12-12
US7242675B2 (en) 2007-07-10
SE532857C2 (sv) 2010-04-20
US6868076B2 (en) 2005-03-15
BR9508348A (pt) 1998-01-06
FI20050232L (fi) 2005-03-01
AU3154195A (en) 1996-02-22
HK1050966A1 (en) 2003-07-11
US20020172172A1 (en) 2002-11-21
US6876665B2 (en) 2005-04-05
DK176193B1 (da) 2007-01-02
FI970276A0 (fi) 1997-01-23
ES2137140T3 (es) 2003-05-16
HK1050965A1 (en) 2003-07-11
SE521137C2 (sv) 2003-10-07
SE0502763L (sv) 2005-12-15
US20020196757A1 (en) 2002-12-26
SE0700241L (sv) 2007-02-01
CA2342454C (en) 2002-09-03
ATE224618T1 (de) 2002-10-15
HK1030697A1 (en) 2001-05-11
SE532856C2 (sv) 2010-04-20
US5553062A (en) 1996-09-03
CN1228937C (zh) 2005-11-23
US6259688B1 (en) 2001-07-10
SE0302105D0 (sv) 2003-07-21
ES2151461T1 (es) 2001-01-01
ES2342903T3 (es) 2010-07-16
US7027423B2 (en) 2006-04-11
EP1033840B1 (en) 2007-09-12
DE69535594D1 (de) 2007-10-25
US7167464B2 (en) 2007-01-23
DK176636B1 (da) 2008-12-15
ES2137140T1 (es) 1999-12-16
DE69536056D1 (de) 2010-04-22
DK176802B1 (da) 2009-09-14
US5719852A (en) 1998-02-17
US6014373A (en) 2000-01-11
EP0772928A4 (en) 1999-10-13
ATE460785T1 (de) 2010-03-15
CN1223127C (zh) 2005-10-12
DE69528275T2 (de) 2003-05-08
CN1373583A (zh) 2002-10-09
US20020172171A1 (en) 2002-11-21
EP0772928A1 (en) 1997-05-14
HK1065190A1 (en) 2005-02-08
CN1373582A (zh) 2002-10-09
US20050157743A1 (en) 2005-07-21
CN1501611A (zh) 2004-06-02
JPH10504429A (ja) 1998-04-28
CN1097368C (zh) 2002-12-25
CN1229935C (zh) 2005-11-30
CA2369499C (en) 2007-09-11
EP1033840A1 (en) 2000-09-06
HK1066945A1 (en) 2005-04-01
CA2195534C (en) 2001-10-09
FI117612B (fi) 2006-12-15
CN1373581A (zh) 2002-10-09
SE9700184L (sv) 1997-03-26
US7230938B2 (en) 2007-06-12
SE528965C2 (sv) 2007-03-27
JP2001053721A (ja) 2001-02-23

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