AU2001279045A1 - Method and apparatus for multipath signal compensation in spread-spectrum communications systems - Google Patents

Method and apparatus for multipath signal compensation in spread-spectrum communications systems

Info

Publication number
AU2001279045A1
AU2001279045A1 AU2001279045A AU7904501A AU2001279045A1 AU 2001279045 A1 AU2001279045 A1 AU 2001279045A1 AU 2001279045 A AU2001279045 A AU 2001279045A AU 7904501 A AU7904501 A AU 7904501A AU 2001279045 A1 AU2001279045 A1 AU 2001279045A1
Authority
AU
Australia
Prior art keywords
spread
communications systems
multipath signal
signal compensation
spectrum communications
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
AU2001279045A
Other languages
English (en)
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 AU2001279045A1 publication Critical patent/AU2001279045A1/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
    • H04B1/7103—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Noise Elimination (AREA)
AU2001279045A 2000-07-31 2001-07-27 Method and apparatus for multipath signal compensation in spread-spectrum communications systems Abandoned AU2001279045A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09629588 2000-07-31
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
AU2001279045A1 true AU2001279045A1 (en) 2002-02-13

Family

ID=24523625

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001279045A Abandoned AU2001279045A1 (en) 2000-07-31 2001-07-27 Method and apparatus for multipath signal compensation in spread-spectrum communications systems

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)

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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
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Also Published As

Publication number Publication date
US6990158B2 (en) 2006-01-24
US20040196933A1 (en) 2004-10-07
EP1305891B1 (de) 2009-03-25
WO2002011308A1 (en) 2002-02-07
EP1305891A1 (de) 2003-05-02
US6728324B1 (en) 2004-04-27
DE60138109D1 (de) 2009-05-07

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