ATE378737T1 - Nachführung eines mehrweg aufgelösten signals in einem rake-empfänger - Google Patents

Nachführung eines mehrweg aufgelösten signals in einem rake-empfänger

Info

Publication number
ATE378737T1
ATE378737T1 AT01960714T AT01960714T ATE378737T1 AT E378737 T1 ATE378737 T1 AT E378737T1 AT 01960714 T AT01960714 T AT 01960714T AT 01960714 T AT01960714 T AT 01960714T AT E378737 T1 ATE378737 T1 AT E378737T1
Authority
AT
Austria
Prior art keywords
component
early
late
rake receiver
tracking
Prior art date
Application number
AT01960714T
Other languages
English (en)
Inventor
Charles Razzell
Original Assignee
Nxp Bv
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 Nxp Bv filed Critical Nxp Bv
Application granted granted Critical
Publication of ATE378737T1 publication Critical patent/ATE378737T1/de

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Burglar Alarm Systems (AREA)
  • Noise Elimination (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Radio Transmission System (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
AT01960714T 2000-08-28 2001-08-27 Nachführung eines mehrweg aufgelösten signals in einem rake-empfänger ATE378737T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/649,672 US6901105B1 (en) 2000-08-28 2000-08-28 Tracking of a multi-path resolved signal in a rake receiver

Publications (1)

Publication Number Publication Date
ATE378737T1 true ATE378737T1 (de) 2007-11-15

Family

ID=24605770

Family Applications (2)

Application Number Title Priority Date Filing Date
AT01983440T ATE417412T1 (de) 2000-08-28 2001-08-17 Früh-spät detektion in einem cdma empfänger
AT01960714T ATE378737T1 (de) 2000-08-28 2001-08-27 Nachführung eines mehrweg aufgelösten signals in einem rake-empfänger

Family Applications Before (1)

Application Number Title Priority Date Filing Date
AT01983440T ATE417412T1 (de) 2000-08-28 2001-08-17 Früh-spät detektion in einem cdma empfänger

Country Status (8)

Country Link
US (2) US6901105B1 (de)
EP (1) EP1228577B1 (de)
JP (2) JP4836158B2 (de)
KR (2) KR100873503B1 (de)
CN (1) CN1254021C (de)
AT (2) ATE417412T1 (de)
DE (2) DE60136907D1 (de)
WO (1) WO2002019556A2 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1117186A1 (de) * 2000-01-14 2001-07-18 Lucent Technologies Inc. Adaptiver Kodenachlauf-RAKE-Empfänger für CDMA-Nachrichtenübertragung
EP1117185A1 (de) 2000-01-14 2001-07-18 Lucent Technologies Inc. Verfahren und RAKE-Empfänger zur Kodenachführung in einem CDMA-Nachrichtenübertragungssystem
EP1130792A1 (de) * 2000-03-03 2001-09-05 Lucent Technologies Inc. Verfahren und Rake-empfänger für Phasenvektorschätzung in Kommunikationssystemen
CN1140075C (zh) * 2000-12-18 2004-02-25 ***电信传输研究所 基于多径能量窗的码分多址***初始同步与小区搜索装置
US6448547B1 (en) * 2001-01-24 2002-09-10 Applied Optoelectronics, Inc. Method for determining photodiode performance parameters
GB2381422A (en) * 2001-10-24 2003-04-30 Ipwireless Inc Code division multiple access receiver
JP3813490B2 (ja) * 2001-10-30 2006-08-23 富士通株式会社 スペクトラム拡散レイク受信機
EP1365518A1 (de) * 2002-05-21 2003-11-26 Nokia Corporation Verfahren und Vorrichtung zur Synchronisierung von DS-CDMA Mehrwegsignalen
EP1372269A1 (de) * 2002-06-12 2003-12-17 Agilent Technologies, Inc. - a Delaware corporation - Verbesserte Spreizspektrum-RAKE-empfänger
EP1563627A4 (de) 2002-11-22 2009-11-04 Interdigital Tech Corp Kanalverstärkungsschätzung in einem rake-empfänger durch verwendung von algorithmen mit komplexer gewichterzeugung (cwg)
US7310365B2 (en) * 2003-10-31 2007-12-18 Texas Instruments Incorporated Group decision rule in code tracking using a delay lock loop (DLL)
WO2005048480A1 (en) 2003-11-04 2005-05-26 Thomson Licensing Intelligent code tracking for spread spectrum systems
JP2005142939A (ja) * 2003-11-07 2005-06-02 Fujitsu Ltd 無線受信機
US7231184B2 (en) * 2003-12-05 2007-06-12 Texas Instruments Incorporated Low overhead transmit channel estimation
US7295145B2 (en) * 2004-07-21 2007-11-13 Daniel Alexander Weber Selective-sampling receiver
US8026839B2 (en) * 2004-07-21 2011-09-27 Daniel Alexander Weber Selective-sampling receiver
US7515876B2 (en) * 2005-05-03 2009-04-07 Agere Systems Inc. Rake receiver with time-shared fingers
US8934587B2 (en) 2011-07-21 2015-01-13 Daniel Weber Selective-sampling receiver

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4991147A (en) * 1973-04-26 1991-02-05 The United States Of America As Represented By The Secretary Of The Navy Preformed beam tracker
US4606051A (en) * 1983-11-10 1986-08-12 Universal Data Systems, Inc. QPSK demodulator with I and Q post-detection data correction
US5309482A (en) * 1992-03-30 1994-05-03 Novatel Communications Ltd. Receiver having an adjustable matched filter
JP3128992B2 (ja) * 1992-10-09 2001-01-29 ソニー株式会社 受信装置
JP2952305B2 (ja) * 1993-10-14 1999-09-27 エヌ・ティ・ティ移動通信網株式会社 相関検出器および通信装置
JP3305877B2 (ja) * 1994-06-23 2002-07-24 株式会社東芝 スペクトラム拡散無線通信システムおよびこのシステムで使用される無線通信装置
US6047017A (en) * 1996-04-25 2000-04-04 Cahn; Charles R. Spread spectrum receiver with multi-path cancellation
US5914949A (en) 1996-12-17 1999-06-22 Lucent Technologies Inc. Circuit and method for tracking finger off-set in a spread-spectrum rake receiver and wireless infrastructure employing the same
JP2853742B2 (ja) * 1997-06-10 1999-02-03 日本電気株式会社 直接拡散／符号分割多重方式干渉除去受信装置
US6549559B2 (en) * 1997-12-23 2003-04-15 Koninklijke Philips Electronics N.V. Apparatus and method for locking onto a psuedo-noise code in an IS-95 spread spectrum communications system
US6839378B1 (en) 1998-01-12 2005-01-04 Ericsson, Inc. Method and apparatus for multipath delay estimation in direct sequence spread spectrum communication systems
JP2973416B1 (ja) 1998-06-15 1999-11-08 日本電気株式会社 Ｒａｋｅ受信回路
US6041073A (en) * 1998-09-18 2000-03-21 Golden Bridge Technology, Inc. Multi-clock matched filter for receiving signals with multipath
US6201828B1 (en) * 1998-11-12 2001-03-13 Nortel Networks Limited Fine estimation of multipath delays in spread-spectrum signals
GB2345421B (en) * 1998-12-23 2004-05-26 Symbionics Limted A direct-sequence spread-sprectrum receiver
JP2003530001A (ja) * 2000-03-30 2003-10-07 ユビネティクス リミテッド レーキ受信機及びレーキ受信機を操作する方法
JP2002076990A (ja) * 2000-08-31 2002-03-15 Matsushita Electric Ind Co Ltd Ｃｄｍａ受信装置及びｃｄｍａ受信方法

Also Published As

Publication number Publication date
EP1228577B1 (de) 2007-11-14
JP2004507968A (ja) 2004-03-11
KR100810780B1 (ko) 2008-03-06
DE60131362T2 (de) 2008-10-16
CN1389025A (zh) 2003-01-01
DE60131362D1 (de) 2007-12-27
WO2002019556A2 (en) 2002-03-07
DE60136907D1 (de) 2009-01-22
ATE417412T1 (de) 2008-12-15
US6901105B1 (en) 2005-05-31
KR20020043252A (ko) 2002-06-08
KR100873503B1 (ko) 2008-12-15
JP4836158B2 (ja) 2011-12-14
CN1254021C (zh) 2006-04-26
JP2004507969A (ja) 2004-03-11
US20020044592A1 (en) 2002-04-18
US6954486B2 (en) 2005-10-11
WO2002019556A3 (en) 2002-05-16
JP4815563B2 (ja) 2011-11-16
KR20020043245A (ko) 2002-06-08
EP1228577A2 (de) 2002-08-07

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