FI931480A0 - Cdma substraktiv demodulering - Google Patents

Cdma substraktiv demodulering

Info

Publication number
FI931480A0
FI931480A0 FI931480A FI931480A FI931480A0 FI 931480 A0 FI931480 A0 FI 931480A0 FI 931480 A FI931480 A FI 931480A FI 931480 A FI931480 A FI 931480A FI 931480 A0 FI931480 A0 FI 931480A0
Authority
FI
Finland
Prior art keywords
composite signal
signal
transform component
composite
correlated
Prior art date
Application number
FI931480A
Other languages
English (en)
Other versions
FI106166B (fi
FI931480A (fi
Inventor
Paul W Dent
Original Assignee
Ericsson Ge Mobile Communicat
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 Ericsson Ge Mobile Communicat filed Critical Ericsson Ge Mobile Communicat
Publication of FI931480A0 publication Critical patent/FI931480A0/fi
Publication of FI931480A publication Critical patent/FI931480A/fi
Application granted granted Critical
Publication of FI106166B publication Critical patent/FI106166B/fi

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
    • H04B1/71072—Successive 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2628—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal
    • H04J13/0048—Walsh
    • 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
    • H04B2001/71077—Partial interference cancellation
    • 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
    • H04B2201/70703—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation using multiple or variable rates

Landscapes

  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Gyroscopes (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Noise Elimination (AREA)
  • Amplifiers (AREA)
  • Soil Working Implements (AREA)
  • Error Detection And Correction (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
FI931480A 1991-08-02 1993-04-01 Vähentävän demodulaation CDMA FI106166B (fi)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US73944691 1991-08-02
US07/739,446 US5218619A (en) 1990-12-17 1991-08-02 CDMA subtractive demodulation
US9206208 1992-07-31
PCT/US1992/006208 WO1993003556A1 (en) 1991-08-02 1992-07-31 Cdma subtractive demodulation

Publications (3)

Publication Number Publication Date
FI931480A0 true FI931480A0 (fi) 1993-04-01
FI931480A FI931480A (fi) 1993-04-01
FI106166B FI106166B (fi) 2000-11-30

Family

ID=24972350

Family Applications (1)

Application Number Title Priority Date Filing Date
FI931480A FI106166B (fi) 1991-08-02 1993-04-01 Vähentävän demodulaation CDMA

Country Status (16)

Country Link
US (1) US5218619A (fi)
EP (1) EP0526439B1 (fi)
JP (1) JP2994752B2 (fi)
AT (1) ATE163242T1 (fi)
AU (1) AU659207B2 (fi)
CA (1) CA2093228C (fi)
DE (1) DE69224415T2 (fi)
DK (1) DK0526439T3 (fi)
ES (1) ES2114925T3 (fi)
FI (1) FI106166B (fi)
GR (1) GR3026595T3 (fi)
HK (1) HK1009365A1 (fi)
MX (1) MX9204490A (fi)
MY (1) MY108717A (fi)
SG (1) SG54162A1 (fi)
WO (1) WO1993003556A1 (fi)

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DE69224415T2 (de) 1998-06-04
AU2469492A (en) 1993-03-02
DE69224415D1 (de) 1998-03-19
FI106166B (fi) 2000-11-30
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JP2994752B2 (ja) 1999-12-27
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EP0526439B1 (en) 1998-02-11
ATE163242T1 (de) 1998-02-15
CA2093228C (en) 2000-07-04
MX9204490A (es) 1993-02-01
FI931480A (fi) 1993-04-01
ES2114925T3 (es) 1998-06-16
MY108717A (en) 1996-11-30
JPH06504171A (ja) 1994-05-12
GR3026595T3 (en) 1998-07-31
HK1009365A1 (en) 1999-05-28
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US5218619A (en) 1993-06-08
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CA2093228A1 (en) 1993-02-03
SG54162A1 (en) 1998-11-16

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