CA2369499A1 - Multichannel cdma subtractive interference canceler - Google Patents

Multichannel cdma subtractive interference canceler Download PDF

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Publication number
CA2369499A1
CA2369499A1 CA002369499A CA2369499A CA2369499A1 CA 2369499 A1 CA2369499 A1 CA 2369499A1 CA 002369499 A CA002369499 A CA 002369499A CA 2369499 A CA2369499 A CA 2369499A CA 2369499 A1 CA2369499 A1 CA 2369499A1
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CA
Canada
Prior art keywords
interference canceler
subtractive interference
cdma subtractive
multichannel cdma
multichannel
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.)
Granted
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CA002369499A
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French (fr)
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CA2369499C (en
Inventor
Donald L. Schilling
John Kowalski
Shimon Moshavi
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InterDigital Technology Corp
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Individual
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23069142&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2369499(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to CA2552443A priority Critical patent/CA2552443C/en
Publication of CA2369499A1 publication Critical patent/CA2369499A1/en
Application granted granted Critical
Publication of CA2369499C publication Critical patent/CA2369499C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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

Abstract

A plurality of channels are received as a received signal. Each channel is associated with a code. For each of the plurality of channels, others of the plurality of channels are subtracted from the received signal and a result of that subtracting is despread as data for that channel.
CA002369499A 1994-07-26 1995-07-05 Multichannel cdma subtractive interference canceler Expired - Lifetime CA2369499C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2552443A CA2552443C (en) 1994-07-26 1995-07-05 Multichannel cdma subtractive interference canceler

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/279,477 US5553062A (en) 1993-04-22 1994-07-26 Spread spectrum CDMA interference canceler system and method
US08/279,477 1994-07-26
CA002342454A CA2342454C (en) 1994-07-26 1995-07-05 Spread spectrum interference canceler system and method

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002342454A Division CA2342454C (en) 1994-07-26 1995-07-05 Spread spectrum interference canceler system and method

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA2552443A Division CA2552443C (en) 1994-07-26 1995-07-05 Multichannel cdma subtractive interference canceler

Publications (2)

Publication Number Publication Date
CA2369499A1 true CA2369499A1 (en) 1996-02-08
CA2369499C CA2369499C (en) 2007-09-11

Family

ID=23069142

Family Applications (4)

Application Number Title Priority Date Filing Date
CA002195534A Expired - Lifetime CA2195534C (en) 1994-07-26 1995-07-05 Spread spectrum interference canceler system and method
CA2552443A Expired - Lifetime CA2552443C (en) 1994-07-26 1995-07-05 Multichannel cdma subtractive interference canceler
CA002369499A Expired - Lifetime CA2369499C (en) 1994-07-26 1995-07-05 Multichannel cdma subtractive interference canceler
CA002342454A Expired - Lifetime CA2342454C (en) 1994-07-26 1995-07-05 Spread spectrum interference canceler system and method

Family Applications Before (2)

Application Number Title Priority Date Filing Date
CA002195534A Expired - Lifetime CA2195534C (en) 1994-07-26 1995-07-05 Spread spectrum interference canceler system and method
CA2552443A Expired - Lifetime CA2552443C (en) 1994-07-26 1995-07-05 Multichannel cdma subtractive interference canceler

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA002342454A Expired - Lifetime CA2342454C (en) 1994-07-26 1995-07-05 Spread spectrum interference canceler system and method

Country Status (16)

Country Link
US (15) US5553062A (en)
EP (3) EP1033840B1 (en)
JP (2) JP3153894B2 (en)
CN (8) CN1223127C (en)
AT (3) ATE373355T1 (en)
AU (1) AU701816B2 (en)
BR (2) BR9508348A (en)
CA (4) CA2195534C (en)
DE (6) DE69535594T2 (en)
DK (6) DK1033840T3 (en)
ES (3) ES2137140T3 (en)
FI (2) FI115430B (en)
HK (7) HK1030697A1 (en)
NZ (2) NZ314383A (en)
SE (5) SE532856C2 (en)
WO (1) WO1996003819A1 (en)

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