SE9704026L - Bandspridnings-signaldemodulator - Google Patents

Bandspridnings-signaldemodulator

Info

Publication number
SE9704026L
SE9704026L SE9704026A SE9704026A SE9704026L SE 9704026 L SE9704026 L SE 9704026L SE 9704026 A SE9704026 A SE 9704026A SE 9704026 A SE9704026 A SE 9704026A SE 9704026 L SE9704026 L SE 9704026L
Authority
SE
Sweden
Prior art keywords
correlation
signal
pct
replica
sec
Prior art date
Application number
SE9704026A
Other languages
English (en)
Other versions
SE9704026D0 (sv
SE522286C2 (sv
Inventor
Toshinori Suzuki
Yoshio Takeuchi
Original Assignee
Kokusai Denshin Denwa Co Ltd
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 Kokusai Denshin Denwa Co Ltd filed Critical Kokusai Denshin Denwa Co Ltd
Publication of SE9704026D0 publication Critical patent/SE9704026D0/sv
Publication of SE9704026L publication Critical patent/SE9704026L/sv
Publication of SE522286C2 publication Critical patent/SE522286C2/sv

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
    • H04B1/7107—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
    • H04B1/7093—Matched filter type

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
SE9704026A 1996-03-07 1997-11-04 Interferensannulerande CDMA-demodulator SE522286C2 (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP7817196A JP3272940B2 (ja) 1996-03-07 1996-03-07 スペクトル拡散信号復調装置
PCT/JP1997/000679 WO1997033401A1 (fr) 1996-03-07 1997-03-05 Demodulateur de signaux a spectre etale

Publications (3)

Publication Number Publication Date
SE9704026D0 SE9704026D0 (sv) 1997-11-04
SE9704026L true SE9704026L (sv) 1998-01-07
SE522286C2 SE522286C2 (sv) 2004-01-27

Family

ID=13654506

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9704026A SE522286C2 (sv) 1996-03-07 1997-11-04 Interferensannulerande CDMA-demodulator

Country Status (5)

Country Link
US (1) US6088383A (sv)
JP (1) JP3272940B2 (sv)
KR (1) KR100305740B1 (sv)
SE (1) SE522286C2 (sv)
WO (1) WO1997033401A1 (sv)

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JP3024750B2 (ja) 1998-04-07 2000-03-21 日本電気株式会社 Ｄｓ−ｃｄｍａマルチユーザ干渉キャンセラ装置及びｄｓ−ｃｄｍａ通信システム
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JP2000307470A (ja) 1999-04-16 2000-11-02 Matsushita Electric Ind Co Ltd 受信装置
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US6404760B1 (en) * 1999-07-19 2002-06-11 Qualcomm Incorporated CDMA multiple access interference cancellation using signal estimation
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JP3793687B2 (ja) * 2000-05-12 2006-07-05 株式会社日立コミュニケーションテクノロジー 無線基地局及び移動通信システム
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US6466611B1 (en) * 2001-02-07 2002-10-15 Motorola, Inc. Multi-user detection using a finite-impulse-response matrix filter
US7697594B2 (en) * 2001-03-30 2010-04-13 Texas Instruments Incorporated Method and apparatus for regenerative based interference cancellation within a communication system
US20020146044A1 (en) * 2001-04-09 2002-10-10 Riaz Esmailzadeh Hybrid single/multiuser interference reduction detector
US6990137B2 (en) * 2001-05-17 2006-01-24 Qualcomm, Incorporated System and method for received signal prediction in wireless communications systems
US7170924B2 (en) * 2001-05-17 2007-01-30 Qualcomm, Inc. System and method for adjusting combiner weights using an adaptive algorithm in wireless communications system
US7327809B2 (en) * 2001-06-08 2008-02-05 Broadcom Corporation Channel equalization with SCDMA modulation
US7190710B2 (en) * 2001-06-08 2007-03-13 Broadcom Corporation Successive interference canceling for CMDA
KR100414070B1 (ko) * 2001-09-20 2004-01-07 엘지전자 주식회사 씨디엠에이 시스템의 간섭제거장치
US8085889B1 (en) 2005-04-11 2011-12-27 Rambus Inc. Methods for managing alignment and latency in interference cancellation
US7158559B2 (en) * 2002-01-15 2007-01-02 Tensor Comm, Inc. Serial cancellation receiver design for a coded signal processing engine
KR20050044494A (ko) 2001-11-16 2005-05-12 텐솔콤 인코포레이티드 코딩된 신호 처리 엔진용 간섭 행렬의 구조
US7787518B2 (en) * 2002-09-23 2010-08-31 Rambus Inc. Method and apparatus for selectively applying interference cancellation in spread spectrum systems
US7260506B2 (en) * 2001-11-19 2007-08-21 Tensorcomm, Inc. Orthogonalization and directional filtering
US7394879B2 (en) * 2001-11-19 2008-07-01 Tensorcomm, Inc. Systems and methods for parallel signal cancellation
US7039136B2 (en) * 2001-11-19 2006-05-02 Tensorcomm, Inc. Interference cancellation in a signal
US20050101277A1 (en) * 2001-11-19 2005-05-12 Narayan Anand P. Gain control for interference cancellation
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US7263118B2 (en) * 2002-04-26 2007-08-28 Electronics And Telecommunications Research Institute Interference canceling device and method in mobile communication system
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US7876810B2 (en) 2005-04-07 2011-01-25 Rambus Inc. Soft weighted interference cancellation for CDMA systems
US7463609B2 (en) * 2005-07-29 2008-12-09 Tensorcomm, Inc Interference cancellation within wireless transceivers
US7787572B2 (en) 2005-04-07 2010-08-31 Rambus Inc. Advanced signal processors for interference cancellation in baseband receivers
US8761321B2 (en) 2005-04-07 2014-06-24 Iii Holdings 1, Llc Optimal feedback weighting for soft-decision cancellers
US20050180364A1 (en) * 2002-09-20 2005-08-18 Vijay Nagarajan Construction of projection operators for interference cancellation
US20050123080A1 (en) * 2002-11-15 2005-06-09 Narayan Anand P. Systems and methods for serial cancellation
US8179946B2 (en) 2003-09-23 2012-05-15 Rambus Inc. Systems and methods for control of advanced receivers
US8005128B1 (en) 2003-09-23 2011-08-23 Rambus Inc. Methods for estimation and interference cancellation for signal processing
WO2004036811A2 (en) * 2002-10-15 2004-04-29 Tensorcomm Inc. Method and apparatus for interference suppression with efficient matrix inversion in a ds-cdma system
WO2004036812A2 (en) * 2002-10-15 2004-04-29 Tensorcomm Inc. Method and apparatus for channel amplitude estimation and interference vector construction
US20040091055A1 (en) * 2002-10-30 2004-05-13 Williams Thomas Holtzman Digital transmission system using non-orthogonal matrices
WO2004042948A1 (en) * 2002-10-31 2004-05-21 Tensorcomm, Incorporated Systems and methods for reducing interference in cdma systems
GB0327041D0 (en) * 2003-11-21 2003-12-24 Roke Manor Research Apparatus and methods
US7308056B2 (en) * 2004-01-14 2007-12-11 Nokia Corporation Joint channel estimator for synchronous and asynchronous interference suppression in SAIC receiver
US7477710B2 (en) * 2004-01-23 2009-01-13 Tensorcomm, Inc Systems and methods for analog to digital conversion with a signal cancellation system of a receiver
US20050169354A1 (en) * 2004-01-23 2005-08-04 Olson Eric S. Systems and methods for searching interference canceled data
US7085539B2 (en) * 2004-01-30 2006-08-01 Harris Corporation Communications channel characterization device and associated methods
US20060125689A1 (en) * 2004-12-10 2006-06-15 Narayan Anand P Interference cancellation in a receive diversity system
US7826516B2 (en) 2005-11-15 2010-11-02 Rambus Inc. Iterative interference canceller for wireless multiple-access systems with multiple receive antennas
US20060229051A1 (en) * 2005-04-07 2006-10-12 Narayan Anand P Interference selection and cancellation for CDMA communications
US8630378B2 (en) * 2005-12-06 2014-01-14 Qualcomm Incorporated Interference cancellation with improved estimation and tracking for wireless communication
US8306164B2 (en) 2009-02-11 2012-11-06 Alcatel Lucent Interference cancellation with a time-sliced architecture
US8780964B2 (en) * 2012-01-24 2014-07-15 Qualcomm Incorporated Methods and apparatus for reducing and/or eliminating the effects of self-interference
US9520910B1 (en) * 2015-09-24 2016-12-13 Nxp B.V. Receiver component and method for enhancing a detection range of a time-tracking process in a receiver

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US5553062A (en) * 1993-04-22 1996-09-03 Interdigital Communication Corporation Spread spectrum CDMA interference canceler system and method
US5740208A (en) * 1993-06-25 1998-04-14 Roke Manor Research Limited Interference cancellation apparatus for mitigating the effects of poor affiliation between a base station and a mobile unit
JP2927657B2 (ja) * 1993-11-05 1999-07-28 ケイディディ株式会社 スペクトル拡散信号復調装置
JP3209629B2 (ja) * 1994-01-25 2001-09-17 日本電信電話株式会社 スペクトラム拡散通信用受信装置
JPH07264112A (ja) * 1994-03-18 1995-10-13 Oki Electric Ind Co Ltd 符号分割多元接続通信の干渉除去方法
JPH07273713A (ja) * 1994-04-04 1995-10-20 Oki Electric Ind Co Ltd 受信装置、基地局受信システム及び移動局受信システム
FI943889A (sv) * 1994-08-24 1996-02-25 Nokia Telecommunications Oy Förfarande för justering av sändareffekt i cellulärradiosystem och mottagare
JP2782057B2 (ja) * 1996-02-19 1998-07-30 株式会社鷹山 スペクトル拡散通信方式のための逆拡散回路

Also Published As

Publication number Publication date
US6088383A (en) 2000-07-11
SE9704026D0 (sv) 1997-11-04
KR19990008345A (ko) 1999-01-25
JPH11234167A (ja) 1999-08-27
JP3272940B2 (ja) 2002-04-08
SE522286C2 (sv) 2004-01-27
KR100305740B1 (ko) 2001-11-30
WO1997033401A1 (fr) 1997-09-12

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