NO961641L - Fremgangsmåte for CDMA-mottaking, samt mottaker - Google Patents

Fremgangsmåte for CDMA-mottaking, samt mottaker

Info

Publication number
NO961641L
NO961641L NO961641A NO961641A NO961641L NO 961641 L NO961641 L NO 961641L NO 961641 A NO961641 A NO 961641A NO 961641 A NO961641 A NO 961641A NO 961641 L NO961641 L NO 961641L
Authority
NO
Norway
Prior art keywords
receiver
received signal
reception method
well
decorative
Prior art date
Application number
NO961641A
Other languages
English (en)
Other versions
NO961641D0 (no
Inventor
Timo Laakso
Ari Hottinen
Original Assignee
Nokia Telecommunications Oy
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 Nokia Telecommunications Oy filed Critical Nokia Telecommunications Oy
Publication of NO961641D0 publication Critical patent/NO961641D0/no
Publication of NO961641L publication Critical patent/NO961641L/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
    • H04B1/71052—Joint detection techniques, e.g. linear detectors using decorrelation matrix

Landscapes

  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Noise Elimination (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)

Abstract

Oppfinnelsen angår en mottakingsfremgangsmåte og en mottaker i et dataoverf«ringssystem hvor en CDMA multiaksess-metode anvendes, hvor mottakeren omfatter en dekorrelerende detektor (33). For at. mottakeren skal fungere effektivt både i tilfellet med flerbruker-interferens og på en flerbane-kanal,. omfatter den dekorrelerende detektoren (33) i mottakeren ifølge oppfinnelsen en separat anordning. (40) for å utjevne virkningen av flerbane-kanalen i det mottatte signalet, og filtere (41) som er tilpasset kodene som inneholdes i det mottatte signalet, og en anordning (42) for å multiplisere det mottatte signalet med den inverse matrise av krysskorrelasjonsmatrisen for kodene som inneholdes i det mottatte signalet.
NO961641A 1994-08-25 1996-04-24 Fremgangsmåte for CDMA-mottaking, samt mottaker NO961641L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI943906A FI96651C (fi) 1994-08-25 1994-08-25 Vastaanottomenetelmä ja vastaanotin
PCT/FI1995/000451 WO1996006487A1 (en) 1994-08-25 1995-08-23 Cdma receiving method and receiver

Publications (2)

Publication Number Publication Date
NO961641D0 NO961641D0 (no) 1996-04-24
NO961641L true NO961641L (no) 1996-06-24

Family

ID=8541242

Family Applications (1)

Application Number Title Priority Date Filing Date
NO961641A NO961641L (no) 1994-08-25 1996-04-24 Fremgangsmåte for CDMA-mottaking, samt mottaker

Country Status (9)

Country Link
US (1) US6011812A (no)
EP (1) EP0740864B1 (no)
JP (1) JP3939751B2 (no)
CN (1) CN1077747C (no)
AT (1) ATE208106T1 (no)
DE (1) DE69523569T2 (no)
FI (1) FI96651C (no)
NO (1) NO961641L (no)
WO (1) WO1996006487A1 (no)

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DE19623667C2 (de) * 1996-06-13 2003-02-13 Siemens Ag Verfahren und Einrichtung zur Detektion von nach dem DS-CDMA Prinzip übertragenen Informationen in einer Empfangseinrichtung
DE19623665C1 (de) * 1996-06-13 1997-04-30 Siemens Ag Verfahren zum Separieren eines empfangenen Signalgemisches
SE507154C2 (sv) * 1996-08-16 1998-04-06 Ericsson Telefon Ab L M Anordning och förfarande för estimering av symboler i ett bredbandigt radiosystem
US5859880A (en) * 1996-10-31 1999-01-12 Telefonaktiebolaget Lm Ericsson (Publ) Multi-stage squelch apparatus, and associated method, for a multi-branch receiver
DE19826036C2 (de) * 1998-06-12 2000-05-25 Bosch Gmbh Robert Verfahren zur Trennung von mehreren überlagerten codierten Nutzersignalen
JP2970656B1 (ja) * 1998-06-25 1999-11-02 日本電気株式会社 Ｄｓ−ｃｄｍａマルチユーザ干渉キャンセラ
US6363104B1 (en) * 1998-10-02 2002-03-26 Ericsson Inc. Method and apparatus for interference cancellation in a rake receiver
FR2792788B1 (fr) 1999-04-21 2001-07-13 Mitsubishi Electric France PROCEDE D'EQUILIBRAGE DU RAPPORT Eb/I DANS UN SYSTEME cdma A MULTIPLEXAGE DE SERVICE ET SYSTEME DE TELECOMMUNICATION L'UTILISANT
US6690715B2 (en) 1999-06-29 2004-02-10 Intersil Americas Inc. Rake receiver with embedded decision feedback equalizer
US6233273B1 (en) * 1999-06-29 2001-05-15 Intersil Americas Inc. Rake receiver with embedded decision feedback equalizer
FI19992653A7 (fi) * 1999-12-09 2001-06-10 Nokia Mobile Phones Ltd Menetelmä vastaanottimen tahdistamiseksi ja vastaanotin
US6614836B1 (en) * 2000-01-28 2003-09-02 Intersil Americas Inc. Biased-corrected rake receiver for direct sequence spread spectrum waveform
EP1128564A1 (en) * 2000-02-28 2001-08-29 Lucent Technologies Inc. Multi-user detection CDMA receivers in mobile telecommunications systems
US7130292B2 (en) * 2000-06-02 2006-10-31 Essex Corporation Optical processor enhanced receiver architecture (opera)
EP1329031B1 (en) 2000-09-13 2005-12-14 Nortel Networks Limited Multi-user detection in a cdma communication system
US6771690B2 (en) * 2000-12-29 2004-08-03 Nokia Corporation Method and apparatus for providing blind adaptive estimation and reception
US7636403B2 (en) * 2001-02-20 2009-12-22 Massachusetts Institute Of Technology Correlation shaping multi-signature receiver
US7751469B2 (en) * 2001-02-20 2010-07-06 Massachusetts Institute Of Technology Correlation shaping matched filter receiver
US7376175B2 (en) * 2001-03-14 2008-05-20 Mercury Computer Systems, Inc. Wireless communications systems and methods for cache enabled multiple processor based multiple user detection
US7110431B2 (en) * 2001-03-14 2006-09-19 Mercury Computer Systems, Inc. Hardware and software for performing computations in a short-code spread-spectrum communications system
FR2825856B1 (fr) * 2001-06-06 2003-09-12 Nortel Networks Ltd Procede et dispositif de traitement de signal dans un recepteur de radiocommunication a etalement de spectre
US7327809B2 (en) * 2001-06-08 2008-02-05 Broadcom Corporation Channel equalization with SCDMA modulation
US7161974B2 (en) * 2001-09-10 2007-01-09 Sasken Communication Technologies Ltd. Method for 2D antenna rake combining in a code division multiplication access system
US7272366B2 (en) * 2001-12-17 2007-09-18 Nokia Corporation Method and apparatus for reducing RF filter induced distortion in a wide bandwidth wireless system by the use of channel-dependent RF filter compensation
US7593357B2 (en) * 2002-03-28 2009-09-22 Interdigital Technology Corporation Transmit processing using receiver functions
US7218665B2 (en) * 2003-04-25 2007-05-15 Bae Systems Information And Electronic Systems Integration Inc. Deferred decorrelating decision-feedback detector for supersaturated communications
US6944434B2 (en) * 2003-06-27 2005-09-13 Nokia Corporation Method and apparatus for suppressing co-channel interference in a receiver
US7336739B2 (en) * 2003-09-26 2008-02-26 Lockheed Martin Corporation Cross-correlation signal detector
US7437135B2 (en) 2003-10-30 2008-10-14 Interdigital Technology Corporation Joint channel equalizer interference canceller advanced receiver
US7400692B2 (en) * 2004-01-14 2008-07-15 Interdigital Technology Corporation Telescoping window based equalization
US7613228B2 (en) * 2005-08-10 2009-11-03 Bae Systems Information And Electronic Systems Integration Inc. M-Algorithm multiuser detector with correlation based pruning
US7936810B2 (en) * 2005-09-08 2011-05-03 Texas Instruments Incorporated Delayed combining of frequency-domain equalized wireless channels with large delay-spreads
WO2007103443A2 (en) * 2006-03-08 2007-09-13 Interdigital Technology Corporation Apparatus and method for signal separation via spreading codes
US8045660B1 (en) 2007-05-23 2011-10-25 Hypres, Inc. Wideband digital spectrometer
CN101467562B (zh) * 2007-12-28 2012-09-05 内蒙古伊利实业集团股份有限公司 一种含有ω-3不饱和脂肪酸的液态乳制品及其生产方法
CN101309242B (zh) * 2008-06-03 2012-07-18 电子科技大学 全通均衡的时间反演超宽带无线通信方法
US8249540B1 (en) 2008-08-07 2012-08-21 Hypres, Inc. Two stage radio frequency interference cancellation system and method
US20100232326A1 (en) * 2009-03-10 2010-09-16 Harris Corporation, Corporation Of The State Of Delaware Mobile ad-hoc network having interference mitigation and related methods
US8615030B2 (en) * 2009-05-04 2013-12-24 Qualcomm Incorporated Method and system for multi-user detection using two-stage processing
US8599677B2 (en) 2009-05-04 2013-12-03 Qualcomm Incorporated Method and system for multi-user detection using two-stage processing
US8494098B2 (en) 2009-05-04 2013-07-23 Qualcomm Incorporated Method and system for inter-cell interference cancellation
US8494029B2 (en) 2009-05-04 2013-07-23 Qualcomm Incorporated Method and system for multi-user detection in the presence of multiple spreading factors
US8451963B2 (en) 2009-06-09 2013-05-28 Qualcomm Incorporated Method and system for interference cancellation
US11943083B1 (en) * 2021-02-22 2024-03-26 Marvell Asia Pte Ltd Physical layer transceiver with increased noise and interference tolerance and reduced loss

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Publication number Priority date Publication date Assignee Title
FR2691309B1 (fr) * 1992-05-14 1995-05-05 Matra Communication Procédé de désétalement en réception d'un signal en large bande.
JP3181440B2 (ja) * 1993-07-30 2001-07-03 松下通信工業株式会社 Ｃｄｍａ方式通信装置
US5345472A (en) * 1993-08-02 1994-09-06 Motorola, Inc. Method and apparatus for receiving and decoding communication signals in a CDMA receiver
US5414699A (en) * 1993-09-27 1995-05-09 Motorola, Inc. Method and apparatus for receiving and decoding communication signals in a CDMA receiver using partial de-correlation
US5377226A (en) * 1993-10-19 1994-12-27 Hughes Aircraft Company Fractionally-spaced equalizer for a DS-CDMA system
US5757845A (en) * 1994-02-10 1998-05-26 Ntt Mobile Communications Network Adaptive spread spectrum receiver
WO1995022208A1 (en) * 1994-02-14 1995-08-17 Motorola Inc. Decorrelating receiver for asynchronous cdma channels
EP0707385B1 (en) * 1994-04-22 2003-04-09 Ntt Mobile Communications Network Inc. Method for receiving code division multiplex signal

Also Published As

Publication number Publication date
JPH09504674A (ja) 1997-05-06
EP0740864B1 (en) 2001-10-31
ATE208106T1 (de) 2001-11-15
DE69523569D1 (de) 2001-12-06
JP3939751B2 (ja) 2007-07-04
FI943906A0 (fi) 1994-08-25
AU686866B2 (en) 1998-02-12
US6011812A (en) 2000-01-04
CN1135814A (zh) 1996-11-13
AU3259295A (en) 1996-03-14
FI96651C (fi) 1996-07-25
DE69523569T2 (de) 2002-07-11
FI96651B (fi) 1996-04-15
NO961641D0 (no) 1996-04-24
FI943906L (fi) 1996-02-26
EP0740864A1 (en) 1996-11-06
WO1996006487A1 (en) 1996-02-29
CN1077747C (zh) 2002-01-09

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