IL133367A0 - Synchronizer and method therefor and communications systems incorporating same - Google Patents

Synchronizer and method therefor and communications systems incorporating same

Info

Publication number
IL133367A0
IL133367A0 IL13336798A IL13336798A IL133367A0 IL 133367 A0 IL133367 A0 IL 133367A0 IL 13336798 A IL13336798 A IL 13336798A IL 13336798 A IL13336798 A IL 13336798A IL 133367 A0 IL133367 A0 IL 133367A0
Authority
IL
Israel
Prior art keywords
synchronizer
method therefor
communications systems
systems incorporating
incorporating same
Prior art date
Application number
IL13336798A
Other languages
English (en)
Original Assignee
L 3 Comm Corp
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 L 3 Comm Corp filed Critical L 3 Comm Corp
Publication of IL133367A0 publication Critical patent/IL133367A0/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • 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
    • H04B1/7073—Synchronisation aspects
    • H04B1/7085—Synchronisation aspects using a code tracking loop, e.g. a delay-locked loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Radio Relay Systems (AREA)
  • Noise Elimination (AREA)
IL13336798A 1997-06-10 1998-06-09 Synchronizer and method therefor and communications systems incorporating same IL133367A0 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/872,398 US5867525A (en) 1997-06-10 1997-06-10 Synchronizer and method therefor and communications system incorporating same
PCT/US1998/011222 WO1998057453A1 (en) 1997-06-10 1998-06-09 Synchronizer and method therefor and communications system incorporating same

Publications (1)

Publication Number Publication Date
IL133367A0 true IL133367A0 (en) 2001-04-30

Family

ID=25359493

Family Applications (1)

Application Number Title Priority Date Filing Date
IL13336798A IL133367A0 (en) 1997-06-10 1998-06-09 Synchronizer and method therefor and communications systems incorporating same

Country Status (9)

Country Link
US (2) US5867525A (pt)
EP (1) EP0988726A4 (pt)
JP (1) JP2002508903A (pt)
KR (1) KR20010013556A (pt)
CN (1) CN1260089A (pt)
AU (1) AU7807598A (pt)
BR (1) BR9810430A (pt)
IL (1) IL133367A0 (pt)
WO (1) WO1998057453A1 (pt)

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US6061339A (en) * 1997-12-10 2000-05-09 L-3 Communications Corporation Fixed wireless loop system having adaptive system capacity based on estimated signal to noise ratio
US9525923B2 (en) 1997-12-17 2016-12-20 Intel Corporation Multi-detection of heartbeat to reduce error probability
US7936728B2 (en) 1997-12-17 2011-05-03 Tantivy Communications, Inc. System and method for maintaining timing of synchronization messages over a reverse link of a CDMA wireless communication system
US7394791B2 (en) 1997-12-17 2008-07-01 Interdigital Technology Corporation Multi-detection of heartbeat to reduce error probability
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US6442189B1 (en) * 1998-01-14 2002-08-27 Lg Electronics, Inc. Binary code phase offset calculation method and a binary code phase synchronization method by using the phase offset
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US7773566B2 (en) 1998-06-01 2010-08-10 Tantivy Communications, Inc. System and method for maintaining timing of synchronization messages over a reverse link of a CDMA wireless communication system
US8134980B2 (en) 1998-06-01 2012-03-13 Ipr Licensing, Inc. Transmittal of heartbeat signal at a lower level than heartbeat request
US6614834B1 (en) * 1998-09-08 2003-09-02 The Board Of Trustees Of The Leland Stanford Junior University Communication arrangement and method with fast tracking receiver for spread spectrum signals
US6765953B1 (en) * 1998-09-09 2004-07-20 Qualcomm Incorporated User terminal parallel searcher
US6173006B1 (en) * 1998-09-11 2001-01-09 Lg Information & Communications, Ltd. Direct sequence CDMA device and method for using the same
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WO2000025435A2 (de) * 1998-10-27 2000-05-04 Siemens Aktiengesellschaft Verfahren zum steuern von speicherzugriffen bei 'rake'-empfängern mit 'early-late tracking'
US6201828B1 (en) * 1998-11-12 2001-03-13 Nortel Networks Limited Fine estimation of multipath delays in spread-spectrum signals
US6404758B1 (en) * 1999-04-19 2002-06-11 Ericsson, Inc. System and method for achieving slot synchronization in a wideband CDMA system in the presence of large initial frequency errors
DE19933814A1 (de) * 1999-07-20 2001-01-25 Abb Research Ltd Verfahren und Anordnung zur drahtlosen Informationsübertragung sowie Informationssystem für eine eine Vielzahl von Sensoren und/oder Aktoren aufweisende Maschine
US6658042B1 (en) * 1999-09-24 2003-12-02 Koninklijke Philips Electronics N.V. Method and apparatus for time tracking a signal using hardware and software
US7570724B1 (en) * 1999-10-14 2009-08-04 Pluris, Inc. Method of link word synchronization
AU3673001A (en) 2000-02-07 2001-08-14 Tantivy Communications, Inc. Minimal maintenance link to support synchronization
JP4590113B2 (ja) * 2000-03-14 2010-12-01 キヤノン株式会社 スペクトラム拡散通信システムのための受信装置
US6717978B1 (en) * 2000-05-23 2004-04-06 Motorola, Inc. Method and apparatus for system time alignment
US7103061B1 (en) * 2000-06-26 2006-09-05 Koninklijke Philips Electronics N.V. Synchronization codeword for interference reduction in a CDMA system
US6604060B1 (en) * 2000-06-29 2003-08-05 Bull Hn Information Systems Inc. Method and apparatus for determining CC-NUMA intra-processor delays
US8537656B2 (en) 2000-07-19 2013-09-17 Ipr Licensing, Inc. Method for compensating for multi-path of a CDMA reverse link utilizing an orthogonal channel structure
US7006428B2 (en) * 2000-07-19 2006-02-28 Ipr Licensing, Inc. Method for allowing multi-user orthogonal and non-orthogonal interoperability of code channels
US7911993B2 (en) * 2000-07-19 2011-03-22 Ipr Licensing, Inc. Method and apparatus for allowing soft handoff of a CDMA reverse link utilizing an orthogonal channel structure
US6459883B2 (en) * 2000-07-31 2002-10-01 Morphics Technology, Inc. Generic finger architecture for spread spectrum applications
US8155096B1 (en) 2000-12-01 2012-04-10 Ipr Licensing Inc. Antenna control system and method
US7012881B2 (en) * 2000-12-29 2006-03-14 Samsung Electronic Co., Ltd. Timing and frequency offset estimation scheme for OFDM systems by using an analytic tone
US6954448B2 (en) 2001-02-01 2005-10-11 Ipr Licensing, Inc. Alternate channel for carrying selected message types
US7551663B1 (en) 2001-02-01 2009-06-23 Ipr Licensing, Inc. Use of correlation combination to achieve channel detection
EP2479904B1 (en) 2001-06-13 2017-02-15 Intel Corporation Apparatuses for transmittal of heartbeat signal at a lower level than heartbeat request
US6917581B2 (en) 2001-07-17 2005-07-12 Ipr Licensing, Inc. Use of orthogonal or near orthogonal codes in reverse link
DE10149544B4 (de) * 2001-10-08 2004-11-11 Rohde & Schwarz Gmbh & Co. Kg Verfahren zum Ermitteln des Zeitversatzes eines CDMA-Signals und Computerprogramm zur Durchführung des Verfahrens
US7231000B2 (en) * 2001-10-22 2007-06-12 Broadcom Corporation System and method for DC offset compensation and bit synchronization
US7272167B2 (en) * 2002-02-06 2007-09-18 Neoreach, Inc. PN code chip time tracking with smart antenna
US7372892B2 (en) * 2002-04-29 2008-05-13 Interdigital Technology Corporation Simple and robust digital code tracking loop for wireless communication systems
US6795452B2 (en) 2002-05-31 2004-09-21 Sandbridge Technologies, Inc. Method of tracking time intervals for a communication signal
US7633895B2 (en) * 2002-06-24 2009-12-15 Qualcomm Incorporated Orthogonal code division multiple access on return link of satellite links
GB0426780D0 (en) * 2004-12-07 2005-01-12 3M Innovative Properties Co Pressurized inhalation devices
US7593454B2 (en) * 2005-07-28 2009-09-22 Itt Manufacturing Enterprises, Inc. Enhanced QPSK or DQPSK data demodulation for direct sequence spreading (DSS) system waveforms using orthogonal or near-orthogonal spreading sequences
KR100793233B1 (ko) * 2006-05-17 2008-01-10 엘지전자 주식회사 기기 정보 수정 방법
US7831002B2 (en) * 2006-10-11 2010-11-09 The Boeing Company System, apparatus and method for synchronizing a spreading sequence transmitted during a plurality of time slots
JP2008141230A (ja) * 2006-11-29 2008-06-19 Kyocera Corp 無線通信方法および無線通信装置
US7995683B2 (en) * 2007-10-24 2011-08-09 Sirf Technology Inc. Noise floor independent delay-locked loop discriminator
CN102932904B (zh) * 2011-08-09 2017-04-12 中兴通讯股份有限公司 一种实现基站和终端同步的方法、系统、终端及装置
WO2015173928A1 (ja) 2014-05-15 2015-11-19 三菱電機株式会社 復調装置

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US5022048A (en) * 1990-07-26 1991-06-04 Unisys Corp. Programmable digital frequency-phase discriminator
US5099494A (en) * 1990-07-26 1992-03-24 Unisys Corporation Six channel digital demodulator
US5359624A (en) * 1993-06-07 1994-10-25 Motorola, Inc. System and method for chip timing synchronization in an adaptive direct sequence CDMA communication system
US5297162A (en) * 1993-06-04 1994-03-22 Motorola, Inc. System and method for bit timing synchronization in an adaptive direct sequence CDMA communication system
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WO1995012945A1 (en) * 1993-11-01 1995-05-11 Omnipoint Corporation Despreading/demodulating direct sequence spread spectrum signals
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US5568473A (en) * 1994-12-08 1996-10-22 Comsat Corporation Method and apparatus for simple and efficient interference cancellation for chip synchronized CDMA
US5691974A (en) * 1995-01-04 1997-11-25 Qualcomm Incorporated Method and apparatus for using full spectrum transmitted power in a spread spectrum communication system for tracking individual recipient phase, time and energy
US5757767A (en) * 1995-04-18 1998-05-26 Qualcomm Incorporated Method and apparatus for joint transmission of multiple data signals in spread spectrum communication systems
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US5784366A (en) * 1996-08-27 1998-07-21 Transsky Corp. Wideband code-division-multiple access system and method
US5838669A (en) * 1996-08-28 1998-11-17 At&T Corp. Method of synchronizing satellite switched CDMA communication system
US5867525A (en) * 1997-06-10 1999-02-02 L-3 Commuications Corporation Synchronizer and method therefor and communications system incorporating same

Also Published As

Publication number Publication date
WO1998057453A1 (en) 1998-12-17
CN1260089A (zh) 2000-07-12
KR20010013556A (ko) 2001-02-26
EP0988726A1 (en) 2000-03-29
US6332008B1 (en) 2001-12-18
AU7807598A (en) 1998-12-30
US5867525A (en) 1999-02-02
EP0988726A4 (en) 2003-04-23
BR9810430A (pt) 2000-09-19
JP2002508903A (ja) 2002-03-19

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