DE69939078D1 - Verfahren und Vorrichtung zur Verminderung von Amplitudenschwankungen und Störungen in Kommunikationssignalen mit eingesetzten Pilotsymbolen - Google Patents

Verfahren und Vorrichtung zur Verminderung von Amplitudenschwankungen und Störungen in Kommunikationssignalen mit eingesetzten Pilotsymbolen

Info

Publication number
DE69939078D1
DE69939078D1 DE69939078T DE69939078T DE69939078D1 DE 69939078 D1 DE69939078 D1 DE 69939078D1 DE 69939078 T DE69939078 T DE 69939078T DE 69939078 T DE69939078 T DE 69939078T DE 69939078 D1 DE69939078 D1 DE 69939078D1
Authority
DE
Germany
Prior art keywords
disturbances
communication signals
pilot symbols
amplitude fluctuations
inserted pilot
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 - Lifetime
Application number
DE69939078T
Other languages
English (en)
Inventor
Jack Holtzman
Daisuke Terasawa
Leonid Razoumov
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.)
Qualcomm Inc
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Application granted granted Critical
Publication of DE69939078D1 publication Critical patent/DE69939078D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04B1/76—Pilot transmitters or receivers for control of transmission or for equalising
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • 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
    • H04B1/7097—Interference-related aspects
    • H04B1/7103—Interference-related aspects the interference being multiple access interference
    • 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
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/10—Code generation
    • H04J13/12—Generation of orthogonal codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2614—Peak power aspects
    • H04L27/2615—Reduction thereof using coding
    • 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
    • H04B2201/70701—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception
    • 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
    • H04B2201/70706—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation with means for reducing the peak-to-average power ratio
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03777—Arrangements for removing intersymbol interference characterised by the signalling
DE69939078T 1998-08-31 1999-08-30 Verfahren und Vorrichtung zur Verminderung von Amplitudenschwankungen und Störungen in Kommunikationssignalen mit eingesetzten Pilotsymbolen Expired - Lifetime DE69939078D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/144,402 US6310869B1 (en) 1998-08-31 1998-08-31 Method and apparatus for reducing amplitude variations and interference in communication signals, such as in wireless communication signals employing inserted pilot symbols

Publications (1)

Publication Number Publication Date
DE69939078D1 true DE69939078D1 (de) 2008-08-21

Family

ID=22508421

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69928269T Expired - Lifetime DE69928269T2 (de) 1998-08-31 1999-08-30 Verfahren und vorrichtung zur verminderung von amplitudenschwankungen in kommunikationssignalen unter verwendung von eingesetzten pilotsymbolen
DE69939078T Expired - Lifetime DE69939078D1 (de) 1998-08-31 1999-08-30 Verfahren und Vorrichtung zur Verminderung von Amplitudenschwankungen und Störungen in Kommunikationssignalen mit eingesetzten Pilotsymbolen

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69928269T Expired - Lifetime DE69928269T2 (de) 1998-08-31 1999-08-30 Verfahren und vorrichtung zur verminderung von amplitudenschwankungen in kommunikationssignalen unter verwendung von eingesetzten pilotsymbolen

Country Status (12)

Country Link
US (2) US6310869B1 (de)
EP (2) EP1613013B1 (de)
JP (1) JP4191388B2 (de)
KR (1) KR100697510B1 (de)
CN (1) CN1186888C (de)
AR (1) AR022371A1 (de)
AT (2) ATE309662T1 (de)
AU (1) AU5589299A (de)
DE (2) DE69928269T2 (de)
ES (1) ES2251221T3 (de)
HK (1) HK1040014B (de)
WO (1) WO2000013337A2 (de)

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JP4546342B2 (ja) 2005-07-07 2010-09-15 パナソニック株式会社 送信装置および送信方法
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Also Published As

Publication number Publication date
EP1613013B1 (de) 2008-07-09
JP4191388B2 (ja) 2008-12-03
AR022371A1 (es) 2002-09-04
EP1110360B1 (de) 2005-11-09
KR100697510B1 (ko) 2007-03-20
JP2002524911A (ja) 2002-08-06
WO2000013337A3 (en) 2000-06-08
ATE400956T1 (de) 2008-07-15
WO2000013337A2 (en) 2000-03-09
US6310869B1 (en) 2001-10-30
US20020021683A1 (en) 2002-02-21
KR20010074910A (ko) 2001-08-09
AU5589299A (en) 2000-03-21
ES2251221T3 (es) 2006-04-16
DE69928269T2 (de) 2006-07-13
CN1325583A (zh) 2001-12-05
ATE309662T1 (de) 2005-11-15
EP1110360A2 (de) 2001-06-27
CN1186888C (zh) 2005-01-26
DE69928269D1 (de) 2005-12-15
HK1040014A1 (en) 2002-05-17
EP1613013A1 (de) 2006-01-04
HK1040014B (zh) 2005-08-05

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