DE60138109D1 - Verfahren und vorrichtung zur mehrwegesignalkompen - Google Patents

Verfahren und vorrichtung zur mehrwegesignalkompen

Info

Publication number
DE60138109D1
DE60138109D1 DE60138109T DE60138109T DE60138109D1 DE 60138109 D1 DE60138109 D1 DE 60138109D1 DE 60138109 T DE60138109 T DE 60138109T DE 60138109 T DE60138109 T DE 60138109T DE 60138109 D1 DE60138109 D1 DE 60138109D1
Authority
DE
Germany
Prior art keywords
signal components
way signal
way
components
signal
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE60138109T
Other languages
English (en)
Inventor
Peijun Shan
Eric J King
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RF Micro Devices Inc
Original Assignee
RF Micro Devices Inc
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 RF Micro Devices Inc filed Critical RF Micro Devices Inc
Application granted granted Critical
Publication of DE60138109D1 publication Critical patent/DE60138109D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7113—Determination of path profile
    • 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
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
    • 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
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
    • H04B1/7117—Selection, re-selection, allocation or re-allocation of paths to fingers, e.g. timing offset control of allocated fingers
    • 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
    • H04B2201/70707—Efficiency-related aspects
DE60138109T 2000-07-31 2001-07-27 Verfahren und vorrichtung zur mehrwegesignalkompen Expired - Fee Related DE60138109D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/629,588 US6728324B1 (en) 2000-07-31 2000-07-31 Method and apparatus for multipath signal compensation in spread-spectrum communications systems
PCT/US2001/023650 WO2002011308A1 (en) 2000-07-31 2001-07-27 Method and apparatus for multipath signal compensation in spread-spectrum communications systems

Publications (1)

Publication Number Publication Date
DE60138109D1 true DE60138109D1 (de) 2009-05-07

Family

ID=24523625

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60138109T Expired - Fee Related DE60138109D1 (de) 2000-07-31 2001-07-27 Verfahren und vorrichtung zur mehrwegesignalkompen

Country Status (5)

Country Link
US (2) US6728324B1 (de)
EP (1) EP1305891B1 (de)
AU (1) AU2001279045A1 (de)
DE (1) DE60138109D1 (de)
WO (1) WO2002011308A1 (de)

Families Citing this family (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6728324B1 (en) * 2000-07-31 2004-04-27 Rf Micro Devices, Inc. Method and apparatus for multipath signal compensation in spread-spectrum communications systems
KR100358349B1 (ko) * 2000-11-22 2002-10-25 한국전자통신연구원 다중전송속도를 가지는 코드분할다중접속시스템의 그룹별병렬 간섭제거장치 및 방법
US7054375B2 (en) * 2000-12-22 2006-05-30 Nokia Corporation Method and apparatus for error reduction in an orthogonal modulation system
JP3676991B2 (ja) * 2001-07-05 2005-07-27 松下電器産業株式会社 無線通信装置及び無線通信方法
JP3831229B2 (ja) * 2001-10-31 2006-10-11 富士通株式会社 伝搬路特性推定装置
US20030114125A1 (en) * 2001-12-14 2003-06-19 Essam Sourour Interference suppression in a radio receiver
US7991071B2 (en) * 2002-05-16 2011-08-02 Rf Micro Devices, Inc. AM to PM correction system for polar modulator
US7801244B2 (en) * 2002-05-16 2010-09-21 Rf Micro Devices, Inc. Am to AM correction system for polar modulator
US7116734B1 (en) * 2002-07-15 2006-10-03 National Semiconductor Corporation Method and system for providing maximum likelihood detection with decision feedback interference cancellation
US7302023B2 (en) * 2002-07-25 2007-11-27 Yang George L Application of multipath combiner and equalizer in a multi-channel direct sequence spread spectrum communication system
US7054396B2 (en) * 2002-08-20 2006-05-30 Rf Micro Devices, Inc. Method and apparatus for multipath signal compensation in spread-spectrum communications systems
US7272176B2 (en) * 2003-02-18 2007-09-18 Qualcomm Incorporated Communication receiver with an adaptive equalizer
US7257377B2 (en) * 2003-02-18 2007-08-14 Qualcomm, Incorporated Systems and methods for improving channel estimation
US7239677B2 (en) 2003-04-29 2007-07-03 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for soft symbol scaling
US7356074B2 (en) * 2003-05-08 2008-04-08 Rf Micro Devices, Inc. Estimation of multipath channel with sub-chip resolution
US7116998B2 (en) 2003-05-14 2006-10-03 Telefonaktiebolaget L M Ericsson (Publ) Subtractive multipath delay detection
US7342952B2 (en) * 2003-06-24 2008-03-11 Qualcomm Incorporated Slicer input and feedback filter contents for block coded digital communications
US6831506B1 (en) 2003-09-17 2004-12-14 Rf Micro Devices, Inc. Reconfigurable filter architecture
US7103316B1 (en) 2003-09-25 2006-09-05 Rfmd Wpan, Inc. Method and apparatus determining the presence of interference in a wireless communication channel
JP4238987B2 (ja) * 2003-10-08 2009-03-18 日本電気株式会社 Ｃｄｍａ受信方法及び装置
US7400692B2 (en) * 2004-01-14 2008-07-15 Interdigital Technology Corporation Telescoping window based equalization
US8457552B1 (en) 2004-01-20 2013-06-04 Qualcomm Incorporated Method and apparatus for reduced complexity short range wireless communication system
US6980039B1 (en) 2004-03-03 2005-12-27 Rf Micro Devices, Inc. DC-DC converter with noise spreading to meet spectral mask requirements
US7551686B1 (en) 2004-06-23 2009-06-23 Rf Micro Devices, Inc. Multiple polynomial digital predistortion
US7529523B1 (en) 2004-08-23 2009-05-05 Rf Micro Devices, Inc. N-th order curve fit for power calibration in a mobile terminal
US7412000B1 (en) * 2004-09-03 2008-08-12 Redpine Signals, Inc. Maximum likelihood block decision feedback estimation for CCK demodulation apparatus and method
US7684464B2 (en) * 2004-12-21 2010-03-23 Qualcomm Incorporated Method and apparatus for performing channel assessment in a wireless communication system
US8224265B1 (en) 2005-06-13 2012-07-17 Rf Micro Devices, Inc. Method for optimizing AM/AM and AM/PM predistortion in a mobile terminal
US7613238B2 (en) * 2005-09-13 2009-11-03 Mediatek Inc. Apparatus and method for decision error compensation in an adaptive equalizer
EP1989864A1 (de) * 2005-12-30 2008-11-12 Nokia Corporation Verfahren zum adressieren und signalisieren unter verwendung von sequenzen mit vorbestimmten korrelationseigenschaften
US7877060B1 (en) 2006-02-06 2011-01-25 Rf Micro Devices, Inc. Fast calibration of AM/PM pre-distortion
US7962108B1 (en) 2006-03-29 2011-06-14 Rf Micro Devices, Inc. Adaptive AM/PM compensation
US7869498B2 (en) * 2006-09-14 2011-01-11 Lsi Corporation Low power decision feedback equalization (DFE) through applying DFE data to input data in a data latch
US7689182B1 (en) 2006-10-12 2010-03-30 Rf Micro Devices, Inc. Temperature compensated bias for AM/PM improvement
US7778316B2 (en) * 2006-11-14 2010-08-17 Newport Media, Inc. Detecting channel impulse magnitude response in digital communication systems
US7853214B2 (en) * 2007-01-05 2010-12-14 Microtune (Texas), L.P. Dynamic multi-path detection device and method
US8219872B2 (en) * 2007-01-05 2012-07-10 Csr Technology Inc. Extended deinterleaver for an iterative decoder
US8312551B2 (en) 2007-02-15 2012-11-13 Harris Corporation Low level sequence as an anti-tamper Mechanism
US8009762B1 (en) 2007-04-17 2011-08-30 Rf Micro Devices, Inc. Method for calibrating a phase distortion compensated polar modulated radio frequency transmitter
US8611530B2 (en) 2007-05-22 2013-12-17 Harris Corporation Encryption via induced unweighted errors
US7936812B2 (en) * 2007-07-02 2011-05-03 Micron Technology, Inc. Fractional-rate decision feedback equalization useful in a data transmission system
US7979032B2 (en) * 2007-12-18 2011-07-12 Intel Corporation Estimating statistical properties of noise in modulated data carrier signals
US20090168856A1 (en) * 2007-12-28 2009-07-02 Khurram Muhammad System and Method for Adaptive Equalization of In-Package Signals
US8363830B2 (en) * 2008-02-07 2013-01-29 Harris Corporation Cryptographic system configured to perform a mixed radix conversion with a priori defined statistical artifacts
US8320557B2 (en) * 2008-05-08 2012-11-27 Harris Corporation Cryptographic system including a mixed radix number generator with chosen statistical artifacts
US8249540B1 (en) 2008-08-07 2012-08-21 Hypres, Inc. Two stage radio frequency interference cancellation system and method
US8325702B2 (en) * 2008-08-29 2012-12-04 Harris Corporation Multi-tier ad-hoc network in which at least two types of non-interfering waveforms are communicated during a timeslot
US8351484B2 (en) 2008-12-29 2013-01-08 Harris Corporation Communications system employing chaotic spreading codes with static offsets
US8406276B2 (en) 2008-12-29 2013-03-26 Harris Corporation Communications system employing orthogonal chaotic spreading codes
US8457077B2 (en) 2009-03-03 2013-06-04 Harris Corporation Communications system employing orthogonal chaotic spreading codes
US8509284B2 (en) 2009-06-08 2013-08-13 Harris Corporation Symbol duration dithering for secured chaotic communications
US8428102B2 (en) 2009-06-08 2013-04-23 Harris Corporation Continuous time chaos dithering
US8428103B2 (en) 2009-06-10 2013-04-23 Harris Corporation Discrete time chaos dithering
US8369376B2 (en) 2009-07-01 2013-02-05 Harris Corporation Bit error rate reduction in chaotic communications
US8363700B2 (en) * 2009-07-01 2013-01-29 Harris Corporation Rake receiver for spread spectrum chaotic communications systems
US8428104B2 (en) * 2009-07-01 2013-04-23 Harris Corporation Permission-based multiple access communications systems
US8406352B2 (en) 2009-07-01 2013-03-26 Harris Corporation Symbol estimation for chaotic spread spectrum signal
US8340295B2 (en) * 2009-07-01 2012-12-25 Harris Corporation High-speed cryptographic system using chaotic sequences
US8385385B2 (en) 2009-07-01 2013-02-26 Harris Corporation Permission-based secure multiple access communication systems
US8379689B2 (en) * 2009-07-01 2013-02-19 Harris Corporation Anti-jam communications having selectively variable peak-to-average power ratio including a chaotic constant amplitude zero autocorrelation waveform
US8848909B2 (en) 2009-07-22 2014-09-30 Harris Corporation Permission-based TDMA chaotic communication systems
US8369377B2 (en) 2009-07-22 2013-02-05 Harris Corporation Adaptive link communications using adaptive chaotic spread waveform
US8489042B1 (en) 2009-10-08 2013-07-16 Rf Micro Devices, Inc. Polar feedback linearization
US8345725B2 (en) * 2010-03-11 2013-01-01 Harris Corporation Hidden Markov Model detection for spread spectrum waveforms
US8537949B1 (en) * 2010-06-30 2013-09-17 Netlogic Microsystems, Inc. Systems, circuits and methods for filtering signals to compensate for channel effects
US9335408B2 (en) * 2013-07-22 2016-05-10 Mitsubishi Electric Research Laboratories, Inc. Method and system for through-the-wall imaging using sparse inversion for blind multi-path elimination
US10574393B1 (en) * 2018-03-23 2020-02-25 Nxp Usa, Inc. Phase-based cyclic redundancy check verification for wireless communication

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5077753A (en) 1990-04-09 1991-12-31 Proxim, Inc. Radio communication system using spread spectrum techniques
JP2663820B2 (ja) * 1992-12-28 1997-10-15 日本電気株式会社 判定帰還形等化器
US5414734A (en) 1993-01-06 1995-05-09 Glenayre Electronics, Inc. Compensation for multi-path interference using pilot symbols
US5361276A (en) 1993-09-13 1994-11-01 At&T Bell Laboratories All digital maximum likelihood based spread spectrum receiver
US5615232A (en) * 1993-11-24 1997-03-25 Novatel Communications Ltd. Method of estimating a line of sight signal propagation time using a reduced-multipath correlation function
MX9603336A (es) 1994-02-17 1997-05-31 Micrilor Inc Red de area local inalambrica de alto indice de datos.
US5809060A (en) 1994-02-17 1998-09-15 Micrilor, Inc. High-data-rate wireless local-area network
US5574747A (en) 1995-01-04 1996-11-12 Interdigital Technology Corporation Spread spectrum adaptive power control system and method
US5648983A (en) * 1995-04-24 1997-07-15 Lucent Technologies Inc. CDMA rake receiver with sub-chip resolution
US6009089A (en) 1996-08-20 1999-12-28 Lucent Technologies Inc. Pilot interference cancellation for a coherent wireless code division multiple access receiver
US5889827A (en) 1996-12-12 1999-03-30 Ericsson Inc. Method and apparatus for digital symbol detection using medium response estimates
US6069917A (en) 1997-05-23 2000-05-30 Lucent Technologies Inc. Blind training of a decision feedback equalizer
US6269075B1 (en) 1998-01-26 2001-07-31 Nokia Mobile Phones Limited Finger assignment in a CDMA rake receiver
DE69832483T2 (de) 1998-08-19 2006-06-08 Siemens Ag Spreizspektrumempfänger zur Verminderung von Nachbarsymbolstörungen
US6333947B1 (en) * 1998-11-25 2001-12-25 Nortel Networks Limited Interference cancellation system and method and CDMA receiver including an interference cancellation circuit
US6541950B2 (en) * 2000-01-26 2003-04-01 Novatel, Inc. Multipath meter
US6728324B1 (en) * 2000-07-31 2004-04-27 Rf Micro Devices, Inc. Method and apparatus for multipath signal compensation in spread-spectrum communications systems

Also Published As

Publication number Publication date
US20040196933A1 (en) 2004-10-07
EP1305891A1 (de) 2003-05-02
US6728324B1 (en) 2004-04-27
AU2001279045A1 (en) 2002-02-13
WO2002011308A1 (en) 2002-02-07
US6990158B2 (en) 2006-01-24
EP1305891B1 (de) 2009-03-25

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee