DE60044462D1 - System und Verfahren für joint-time-tracking von mehrfachen Pfaden - Google Patents

System und Verfahren für joint-time-tracking von mehrfachen Pfaden

Info

Publication number
DE60044462D1
DE60044462D1 DE60044462T DE60044462T DE60044462D1 DE 60044462 D1 DE60044462 D1 DE 60044462D1 DE 60044462 T DE60044462 T DE 60044462T DE 60044462 T DE60044462 T DE 60044462T DE 60044462 D1 DE60044462 D1 DE 60044462D1
Authority
DE
Germany
Prior art keywords
time tracking
path joint
joint
path
tracking
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
DE60044462T
Other languages
English (en)
Inventor
Lev Smolyar
Daniel Yellin
Doron Rainish
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.)
DSPC Technologies Ltd
Original Assignee
DSPC Technologies Ltd
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 DSPC Technologies Ltd filed Critical DSPC Technologies Ltd
Application granted granted Critical
Publication of DE60044462D1 publication Critical patent/DE60044462D1/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
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
    • H04B1/7117—Selection, re-selection, allocation or re-allocation of paths to fingers, e.g. timing offset control of allocated fingers
    • 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
    • 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
    • H04B2201/70707—Efficiency-related aspects
    • H04B2201/70709—Efficiency-related aspects with discontinuous detection

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
DE60044462T 1999-04-28 2000-04-18 System und Verfahren für joint-time-tracking von mehrfachen Pfaden Expired - Lifetime DE60044462D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/301,116 US6314130B1 (en) 1999-04-28 1999-04-28 System and method for joint time tracking of multiple paths

Publications (1)

Publication Number Publication Date
DE60044462D1 true DE60044462D1 (de) 2010-07-08

Family

ID=23162024

Family Applications (2)

Application Number Title Priority Date Filing Date
DE60029947T Expired - Lifetime DE60029947T2 (de) 1999-04-28 2000-04-18 System und verfahren für joint-time-tracking von mehrfachen pfaden
DE60044462T Expired - Lifetime DE60044462D1 (de) 1999-04-28 2000-04-18 System und Verfahren für joint-time-tracking von mehrfachen Pfaden

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE60029947T Expired - Lifetime DE60029947T2 (de) 1999-04-28 2000-04-18 System und verfahren für joint-time-tracking von mehrfachen pfaden

Country Status (6)

Country Link
US (3) US6314130B1 (de)
EP (2) EP1180290B1 (de)
CN (2) CN1592131B (de)
AU (1) AU3985800A (de)
DE (2) DE60029947T2 (de)
WO (1) WO2000067442A1 (de)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
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US6314130B1 (en) 1999-04-28 2001-11-06 Dspc Technologies, Ltd. System and method for joint time tracking of multiple paths
GB0007750D0 (en) * 2000-03-30 2000-05-17 Ubinetics Ltd A rake receiver and a method of operating a rake receiver
US6836507B1 (en) * 2000-08-14 2004-12-28 General Dynamics Decision Systems, Inc. Symbol synchronizer for software defined communications system signal combiner
US6731676B2 (en) * 2001-01-11 2004-05-04 Qualcomm Inc Assigning clusters of demodulation elements in a spread spectrum system
US7277471B2 (en) * 2001-01-11 2007-10-02 Qualcomm Incorporated Time-tracking for clustered demodulation elements in a spread spectrum system
DE10123333A1 (de) * 2001-05-14 2002-11-28 Infineon Technologies Ag Mehrteilnehmer-Detektion mittels RAKE-Empfänger-Struktur
US7450631B2 (en) * 2001-10-26 2008-11-11 Intel Corporation Metric correction for multi user detection, for long codes DS-CDMA
US7190750B2 (en) * 2002-02-28 2007-03-13 Qualcomm Incorporated Rake receiver for tracking closely spaced multipath
US6873826B2 (en) * 2002-08-06 2005-03-29 Motorola, Inc. Method and mobile station for reporting multi-path signals based on minimum separation
US7239677B2 (en) * 2003-04-29 2007-07-03 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for soft symbol scaling
US7116998B2 (en) * 2003-05-14 2006-10-03 Telefonaktiebolaget L M Ericsson (Publ) Subtractive multipath delay detection
EP1480369B1 (de) * 2003-05-21 2006-08-23 Telefonaktiebolaget LM Ericsson (publ) Anordnung und Verfahren zur Abtastung in digitalen Empfängern
US7310365B2 (en) * 2003-10-31 2007-12-18 Texas Instruments Incorporated Group decision rule in code tracking using a delay lock loop (DLL)
EP1551108A1 (de) * 2004-01-05 2005-07-06 STMicroelectronics N.V. Verfahren zur Auswahl von Übertragungswegen für ihre zuordnung zu den Fingern eines Rake-Empfängers, und zugehöriger Rake-Empfänger
EP1551109B1 (de) * 2004-01-05 2009-11-25 STMicroelectronics N.V. Verfahren zur Unterdrückung von falschen Echos in einem Rake-Empfänger
US8964912B2 (en) 2005-05-31 2015-02-24 Telefonaktiebolaget Lm Ericsson (Publ) Adaptive timing recovery via generalized RAKE reception
US7640040B2 (en) * 2005-08-22 2009-12-29 Kyocera Corporation Systems and methods for tuning an antenna configuration in a mobile communication device
CN101573982B (zh) * 2006-11-03 2011-08-03 三星电子株式会社 利用运动矢量跟踪编码/解码图像的方法和装置
US7751467B2 (en) * 2006-12-04 2010-07-06 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for selecting signal processing delays based on historical selection data
US20080310485A1 (en) * 2007-06-15 2008-12-18 Qualcomm Incorporated System and methods for controlling modem hardware
US20090125848A1 (en) * 2007-11-14 2009-05-14 Susann Marie Keohane Touch surface-sensitive edit system
US8879678B1 (en) * 2013-08-26 2014-11-04 Qualcomm Incorporated Method and apparatus for controlling finger lock state in a rake receiver
CN109873801B (zh) 2018-12-12 2020-07-24 阿里巴巴集团控股有限公司 在用户和可信计算集群之间建立可信通道的方法、装置、存储介质及计算设备
CN109861980B (zh) 2018-12-29 2020-08-04 阿里巴巴集团控股有限公司 一种建立可信计算集群的方法、装置、存储介质及计算设备

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DE2128524B2 (de) * 1971-06-08 1976-10-21 Siemens AG, 1000 Berlin und 8000 München Flugzeugnavigationsantennensystem
US5349606A (en) 1992-12-31 1994-09-20 Gte Government Systems Corporation Apparatus for multipath DSSS communications
CN1064494C (zh) 1993-06-02 2001-04-11 罗克马诺尔研究有限公司 组合了扩频信号所有可用多径组件的瑞克接收机
US5490165A (en) * 1993-10-28 1996-02-06 Qualcomm Incorporated Demodulation element assignment in a system capable of receiving multiple signals
FI943249A (fi) * 1994-07-07 1996-01-08 Nokia Mobile Phones Ltd Menetelmä vastaanottimen ohjaamiseksi ja vastaanotin
GB2293730B (en) 1994-09-28 1998-08-05 Roke Manor Research Apparatus for use in equipment providing a digital radio link between a fixed and a mobile radio unit
US5648983A (en) 1995-04-24 1997-07-15 Lucent Technologies Inc. CDMA rake receiver with sub-chip resolution
US5764688A (en) 1995-06-30 1998-06-09 Roke Manor Research Limited Apparatus for use in equipment providing a digital radio link between a fixed and a mobile radio unit
US5692006A (en) 1995-07-31 1997-11-25 Qualcomm Incorporated Adaptive despreader
SE504622C2 (sv) * 1996-02-02 1997-03-17 Ericsson Telefon Ab L M Metod och anordning för spårning av signaler samt en RAKE- mottagare som utnyttjar sagda anordning
JP2751959B2 (ja) * 1996-07-15 1998-05-18 日本電気株式会社 Ｃｄｍａ受信装置の受信タイミング検出回路
JP2923867B2 (ja) * 1996-10-28 1999-07-26 日本電気株式会社 送信電力制御方式
JP2853705B2 (ja) * 1997-05-07 1999-02-03 日本電気株式会社 スペクトラム拡散通信受信機
US6345078B1 (en) * 1997-07-31 2002-02-05 Lucent Technologies Inc. Finger assignment system for a multiple finger receiver and method thereof
JP3095065B2 (ja) * 1997-09-11 2000-10-03 日本電気株式会社 スペクトル拡散信号のレイク受信方法およびレイク受信装置
US6078611A (en) * 1997-09-16 2000-06-20 Motorola, Inc. Rake receiver and finger management method for spread spectrum communication
US5997755A (en) * 1997-09-30 1999-12-07 Yamaha Corporation Damage-reduced magnetic head
US6639906B1 (en) * 1997-12-09 2003-10-28 Jeffrey A. Levin Multichannel demodulator
US6839378B1 (en) * 1998-01-12 2005-01-04 Ericsson, Inc. Method and apparatus for multipath delay estimation in direct sequence spread spectrum communication systems
US6269075B1 (en) * 1998-01-26 2001-07-31 Nokia Mobile Phones Limited Finger assignment in a CDMA rake receiver
US6363104B1 (en) * 1998-10-02 2002-03-26 Ericsson Inc. Method and apparatus for interference cancellation in a rake receiver
US6314130B1 (en) * 1999-04-28 2001-11-06 Dspc Technologies, Ltd. System and method for joint time tracking of multiple paths

Also Published As

Publication number Publication date
EP1215825B1 (de) 2010-05-26
DE60029947T2 (de) 2007-08-30
US6314130B1 (en) 2001-11-06
EP1215825A3 (de) 2004-05-06
CN1592131A (zh) 2005-03-09
CN1183729C (zh) 2005-01-05
WO2000067442A1 (en) 2000-11-09
CN1592131B (zh) 2010-06-09
AU3985800A (en) 2000-11-17
US20020061056A1 (en) 2002-05-23
EP1180290A1 (de) 2002-02-20
EP1180290A4 (de) 2004-08-11
US6674793B2 (en) 2004-01-06
EP1180290B1 (de) 2006-08-09
DE60029947D1 (de) 2006-09-21
CN1415158A (zh) 2003-04-30
EP1215825A2 (de) 2002-06-19
US20020061052A1 (en) 2002-05-23

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