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AU2001278040A1 - Multipath parameter estimation in spread-spectrum communications systems - Google Patents

Multipath parameter estimation in spread-spectrum communications systems

Info

Publication number
AU2001278040A1
AU2001278040A1 AU2001278040A AU7804001A AU2001278040A1 AU 2001278040 A1 AU2001278040 A1 AU 2001278040A1 AU 2001278040 A AU2001278040 A AU 2001278040A AU 7804001 A AU7804001 A AU 7804001A AU 2001278040 A1 AU2001278040 A1 AU 2001278040A1
Authority
AU
Australia
Prior art keywords
spread
communications systems
parameter estimation
spectrum communications
multipath parameter
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.)
Abandoned
Application number
AU2001278040A
Inventor
Eric J. King
Peijun Shan
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
Publication of AU2001278040A1 publication Critical patent/AU2001278040A1/en
Abandoned 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
    • H04B1/711—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
    • H04B1/7113—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
    • 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
    • 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
    • H04B1/7163—Spread spectrum techniques using impulse radio
    • H04B1/7183—Synchronisation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
AU2001278040A 2000-07-31 2001-07-27 Multipath parameter estimation in spread-spectrum communications systems Abandoned AU2001278040A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/628,996 2000-07-31
US09/628,996 US6647077B1 (en) 2000-07-31 2000-07-31 Multipath parameter estimation in spread-spectrum communications systems
PCT/US2001/023661 WO2002011300A2 (en) 2000-07-31 2001-07-27 Multipath parameter estimation in spread-spectrum communications systems

Publications (1)

Publication Number Publication Date
AU2001278040A1 true AU2001278040A1 (en) 2002-02-13

Family

ID=24521164

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001278040A Abandoned AU2001278040A1 (en) 2000-07-31 2001-07-27 Multipath parameter estimation in spread-spectrum communications systems

Country Status (5)

Country Link
US (1) US6647077B1 (en)
EP (1) EP1305890B1 (en)
AU (1) AU2001278040A1 (en)
DE (1) DE60125546T2 (en)
WO (1) WO2002011300A2 (en)

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US8537656B2 (en) 2000-07-19 2013-09-17 Ipr Licensing, Inc. Method for compensating for multi-path of a CDMA reverse link utilizing an orthogonal channel structure
US7911993B2 (en) 2000-07-19 2011-03-22 Ipr Licensing, Inc. Method and apparatus for allowing soft handoff of a CDMA reverse link utilizing an orthogonal channel structure
US7342875B2 (en) * 2000-11-06 2008-03-11 The Directv Group, Inc. Space-time coded OFDM system for MMDS applications
WO2003007566A1 (en) * 2001-07-09 2003-01-23 Nokia Corporation Packet data transmission using variable dqpsk modulation
US6917581B2 (en) * 2001-07-17 2005-07-12 Ipr Licensing, Inc. Use of orthogonal or near orthogonal codes in reverse link
US9236902B2 (en) * 2001-08-28 2016-01-12 Texas Instruments Incorporated Combined equalizer and spread spectrum interference canceller method and implementation for the downlink of CDMA systems
US7224685B2 (en) * 2001-09-13 2007-05-29 Ipr Licensing, Inc. Method of detection of signals using an adaptive antenna in a peer-to-peer network
US7161987B2 (en) 2001-09-26 2007-01-09 Conexant, Inc. Single-carrier to multi-carrier wireless architecture
US7324433B1 (en) 2001-11-29 2008-01-29 Marvell International Ltd. Method and apparatus for determining signal quality
US7324584B1 (en) * 2002-01-31 2008-01-29 Nortel Networks Limited Low complexity interference cancellation
US7106803B1 (en) * 2002-06-26 2006-09-12 Marvell International Ltd. Phase shift keying wireless communication apparatus and method
US7054396B2 (en) * 2002-08-20 2006-05-30 Rf Micro Devices, Inc. Method and apparatus for multipath signal compensation in spread-spectrum communications systems
KR20040021162A (en) * 2002-09-02 2004-03-10 삼성전자주식회사 VSB receiver having an equalizer capable of improving quality of equalizing and a method equalizing thereof
KR100450849B1 (en) * 2002-09-03 2004-10-01 한국전자통신연구원 Adaptive Interference Suppression Apparatus for Space-Time Block Coded Direct Sequence/Code Division Multiple Access Communication System
US7606293B2 (en) * 2002-10-25 2009-10-20 Gct Semiconductor, Inc. Bidirectional turbo ISI canceller-based DSSS receiver for high-speed wireless LAN
US7356074B2 (en) * 2003-05-08 2008-04-08 Rf Micro Devices, Inc. Estimation of multipath channel with sub-chip resolution
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
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
US8457552B1 (en) 2004-01-20 2013-06-04 Qualcomm Incorporated Method and apparatus for reduced complexity short range wireless communication system
US7298799B1 (en) 2004-03-08 2007-11-20 Redpine Signals, Inc. All-tap fractionally spaced, serial rake combiner apparatus and method
US7574175B2 (en) * 2004-11-01 2009-08-11 Broadcom Corporation Method and system for selective equalization enablement based on modulation type
US7684464B2 (en) * 2004-12-21 2010-03-23 Qualcomm Incorporated Method and apparatus for performing channel assessment in a wireless communication system
US7706312B1 (en) * 2006-06-09 2010-04-27 Marvell International Ltd. Digital sub-carrier signal recovery based on pilot zero-crossing
US20080273481A1 (en) * 2007-05-02 2008-11-06 Mediaphy Corporation Warm start receiver
US20090239550A1 (en) * 2008-03-18 2009-09-24 Myers Theodore J Random phase multiple access system with location tracking
US8958460B2 (en) 2008-03-18 2015-02-17 On-Ramp Wireless, Inc. Forward error correction media access control system
US20100195553A1 (en) 2008-03-18 2010-08-05 Myers Theodore J Controlling power in a spread spectrum system
US7733945B2 (en) 2008-03-18 2010-06-08 On-Ramp Wireless, Inc. Spread spectrum with doppler optimization
US8477830B2 (en) 2008-03-18 2013-07-02 On-Ramp Wireless, Inc. Light monitoring system using a random phase multiple access system
US7773664B2 (en) 2008-03-18 2010-08-10 On-Ramp Wireless, Inc. Random phase multiple access system with meshing
US8520721B2 (en) 2008-03-18 2013-08-27 On-Ramp Wireless, Inc. RSSI measurement mechanism in the presence of pulsed jammers
US7593452B1 (en) * 2008-03-18 2009-09-22 On-Ramp Wireless, Inc. Despreading spread spectrum data
US8249540B1 (en) 2008-08-07 2012-08-21 Hypres, Inc. Two stage radio frequency interference cancellation system and method
US7639726B1 (en) 2009-03-20 2009-12-29 On-Ramp Wireless, Inc. Downlink communication
US8363699B2 (en) 2009-03-20 2013-01-29 On-Ramp Wireless, Inc. Random timing offset determination
US7702290B1 (en) 2009-04-08 2010-04-20 On-Ramp Wirless, Inc. Dynamic energy control
US9379920B1 (en) 2015-05-08 2016-06-28 Xilinx, Inc. Decision feedback equalization with precursor inter-symbol interference reduction
CN105791184B (en) * 2016-04-15 2019-05-10 重庆邮电大学 A Blind Estimation Method of Spread Spectrum Sequence of Aperiodic Long Code Direct Spread Signal Based on Similarity
US10292104B2 (en) * 2017-08-21 2019-05-14 Redpine Signals, Inc. Quick decision preamble detector with hierarchical processing
US10574393B1 (en) * 2018-03-23 2020-02-25 Nxp Usa, Inc. Phase-based cyclic redundancy check verification for wireless communication
US11082083B2 (en) 2019-03-25 2021-08-03 General Dynamics Mission Systems, Inc. Node having a multi-user rake receiver for use in a cooperative broadcast multi-hop network that employs broadcast flood routing and multi-hop transmission with cooperative beamforming

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JP2663820B2 (en) 1992-12-28 1997-10-15 日本電気株式会社 Decision feedback equalizer
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US5361276A (en) 1993-09-13 1994-11-01 At&T Bell Laboratories All digital maximum likelihood based spread spectrum receiver
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US6345078B1 (en) * 1997-07-31 2002-02-05 Lucent Technologies Inc. Finger assignment system for a multiple finger receiver and method thereof
US6269075B1 (en) * 1998-01-26 2001-07-31 Nokia Mobile Phones Limited Finger assignment in a CDMA rake receiver
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Also Published As

Publication number Publication date
US6647077B1 (en) 2003-11-11
WO2002011300A2 (en) 2002-02-07
DE60125546T2 (en) 2007-09-13
WO2002011300A3 (en) 2002-07-25
DE60125546D1 (en) 2007-02-08
EP1305890B1 (en) 2006-12-27
EP1305890A2 (en) 2003-05-02

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