NO20001819L - PN-kodespredning over flere lag i et kommunikasjonssystem for mange brukere - Google Patents

PN-kodespredning over flere lag i et kommunikasjonssystem for mange brukere

Info

Publication number
NO20001819L
NO20001819L NO20001819A NO20001819A NO20001819L NO 20001819 L NO20001819 L NO 20001819L NO 20001819 A NO20001819 A NO 20001819A NO 20001819 A NO20001819 A NO 20001819A NO 20001819 L NO20001819 L NO 20001819L
Authority
NO
Norway
Prior art keywords
code
spreading
communication system
period
layer
Prior art date
Application number
NO20001819A
Other languages
English (en)
Other versions
NO20001819D0 (no
NO318825B1 (no
Inventor
Brian Harms
Brian Butler
Gordon Skinner
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
Publication of NO20001819D0 publication Critical patent/NO20001819D0/no
Publication of NO20001819L publication Critical patent/NO20001819L/no
Publication of NO318825B1 publication Critical patent/NO318825B1/no

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7073Synchronisation aspects
    • H04B1/7075Synchronisation aspects with code phase acquisition
    • H04B1/7077Multi-step acquisition, e.g. multi-dwell, coarse-fine or validation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/58Random or pseudo-random number generators
    • G06F7/582Pseudo-random number generators
    • G06F7/584Pseudo-random number generators using finite field arithmetic, e.g. using a linear feedback shift register
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7073Synchronisation aspects
    • H04B1/7075Synchronisation aspects with code phase acquisition
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/204Multiple access
    • H04B7/216Code division or spread-spectrum multiple access [CDMA, SSMA]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J13/00Code division multiplex systems
    • H04J13/0007Code type
    • H04J13/0022PN, e.g. Kronecker
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7073Synchronisation aspects
    • H04B1/7075Synchronisation aspects with code phase acquisition
    • H04B1/70755Setting of lock conditions, e.g. threshold
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B2201/00Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70716Quadrature

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Analysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Computational Mathematics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Communication Control (AREA)
NO20001819A 1997-10-10 2000-04-07 PN-kodespredning over flere lag i et kommunikasjonssystem for mange brukere NO318825B1 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US6169897P 1997-10-10 1997-10-10
PCT/US1998/021466 WO1999019992A1 (en) 1997-10-10 1998-10-09 Multi-layered pn code spreading in a multi-user communications system

Publications (3)

Publication Number Publication Date
NO20001819D0 NO20001819D0 (no) 2000-04-07
NO20001819L true NO20001819L (no) 2000-06-08
NO318825B1 NO318825B1 (no) 2005-05-09

Family

ID=22037524

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20001819A NO318825B1 (no) 1997-10-10 2000-04-07 PN-kodespredning over flere lag i et kommunikasjonssystem for mange brukere

Country Status (13)

Country Link
US (1) US6493376B1 (no)
EP (1) EP1029398B1 (no)
JP (1) JP4386574B2 (no)
KR (1) KR100693682B1 (no)
CN (2) CN100590988C (no)
AT (1) ATE450084T1 (no)
AU (1) AU754257B2 (no)
BR (1) BR9813026A (no)
CA (1) CA2305718C (no)
DE (1) DE69841326D1 (no)
NO (1) NO318825B1 (no)
RU (1) RU2221337C2 (no)
WO (1) WO1999019992A1 (no)

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US7447254B1 (en) * 2004-03-25 2008-11-04 Cypress Semiconductor Corp. Self-correlating pseudo-noise pairing
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ATE526730T1 (de) * 2005-03-21 2011-10-15 Ericsson Telefon Ab L M Bestimmung eines detektionssignals in einem spreizspektrumnachrichtenübertragungssystem
US7738606B2 (en) * 2005-03-24 2010-06-15 Novatel Inc. System and method for making correlation measurements utilizing pulse shape measurements
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US7738537B2 (en) * 2005-09-14 2010-06-15 Novatel Inc. Apparatus for and method of determining quadrature code timing from pulse-shape measurements made using an in-phase code
US7668228B2 (en) 2005-09-16 2010-02-23 Novatel Inc. Apparatus for and method of correlating to rising chip edges
US7756194B1 (en) 2005-11-04 2010-07-13 Cypress Semiconductor Corporation Circuit and method for decoding code phase modulated signals
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US7792225B2 (en) * 2005-11-30 2010-09-07 Qualcomm Incorporated Method and device for reducing cross-correlation false alarms in CDMA and other wireless networks
US7688878B2 (en) * 2006-03-16 2010-03-30 The Boeing Company Method and device of peak detection in preamble synchronization for direct sequence spread spectrum communication
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US7991040B2 (en) * 2006-04-04 2011-08-02 Qualcomm Incorporated Methods and apparatus for reduction of a peak to average ratio for an OFDM transmit signal
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CN101247141B (zh) * 2007-12-05 2011-07-06 电子科技大学 一种跳频信号时差估计方法
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CN110690902B (zh) * 2019-09-25 2022-05-17 电子科技大学 一种基于随机截断的时间交织adc失配优化方法
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Also Published As

Publication number Publication date
KR100693682B1 (ko) 2007-03-09
US6493376B1 (en) 2002-12-10
DE69841326D1 (de) 2010-01-07
KR20010031050A (ko) 2001-04-16
AU1270299A (en) 1999-05-03
CN100459444C (zh) 2009-02-04
JP4386574B2 (ja) 2009-12-16
ATE450084T1 (de) 2009-12-15
NO20001819D0 (no) 2000-04-07
NO318825B1 (no) 2005-05-09
CA2305718C (en) 2010-12-07
CN100590988C (zh) 2010-02-17
AU754257B2 (en) 2002-11-07
CA2305718A1 (en) 1999-04-22
EP1029398B1 (en) 2009-11-25
EP1029398A1 (en) 2000-08-23
CN1281599A (zh) 2001-01-24
BR9813026A (pt) 2000-08-15
JP2001520473A (ja) 2001-10-30
CN1819473A (zh) 2006-08-16
WO1999019992A1 (en) 1999-04-22
RU2221337C2 (ru) 2004-01-10

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