ATE390764T1 - Wegschätzung bei spreizspektrum - Google Patents

Wegschätzung bei spreizspektrum

Info

Publication number
ATE390764T1
ATE390764T1 AT01200751T AT01200751T ATE390764T1 AT E390764 T1 ATE390764 T1 AT E390764T1 AT 01200751 T AT01200751 T AT 01200751T AT 01200751 T AT01200751 T AT 01200751T AT E390764 T1 ATE390764 T1 AT E390764T1
Authority
AT
Austria
Prior art keywords
spread spectrum
fingers
estimation
paths
chip
Prior art date
Application number
AT01200751T
Other languages
English (en)
Inventor
Anand G Dabak
Timothy M Schmidl
Srinath Hosur
Aris Papasakellariou
Original Assignee
Texas Instruments 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 Texas Instruments Inc filed Critical Texas Instruments Inc
Application granted granted Critical
Publication of ATE390764T1 publication Critical patent/ATE390764T1/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
    • H04B1/7073—Synchronisation aspects
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • 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
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H04B1/70757—Synchronisation aspects with code phase acquisition with increased resolution, i.e. higher than half a chip
    • 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
    • H04B1/709—Correlator structure
    • 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
    • H04B2001/70706—Spread spectrum techniques using direct sequence modulation 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)
  • Oscillators With Electromechanical Resonators (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Radio Transmission System (AREA)
  • Auxiliary Devices For Music (AREA)
AT01200751T 2000-02-28 2001-02-28 Wegschätzung bei spreizspektrum ATE390764T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18532500P 2000-02-28 2000-02-28

Publications (1)

Publication Number Publication Date
ATE390764T1 true ATE390764T1 (de) 2008-04-15

Family

ID=22680524

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01200751T ATE390764T1 (de) 2000-02-28 2001-02-28 Wegschätzung bei spreizspektrum

Country Status (5)

Country Link
US (1) US7184457B2 (de)
EP (1) EP1134908B1 (de)
JP (1) JP2001352276A (de)
AT (1) ATE390764T1 (de)
DE (1) DE60133333T2 (de)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7443942B2 (en) * 2000-06-15 2008-10-28 Sanyo Electric Co., Ltd. Receiving device and receiving method
FI113921B (fi) 2000-10-30 2004-06-30 Nokia Corp Vastaanotin, vastaanottomenetelmä, tietokoneohjelma ja tietokoneen muistiväline
US7133371B2 (en) * 2000-12-01 2006-11-07 Motorola, Inc. Methods for achieving reliable joins in a multicast IP network
GB2370380B (en) 2000-12-19 2003-12-31 Picochip Designs Ltd Processor architecture
US6731676B2 (en) * 2001-01-11 2004-05-04 Qualcomm Inc Assigning clusters of demodulation elements in a spread spectrum system
DE60228816D1 (de) * 2002-03-21 2008-10-23 Telecom Italia Spa Interpolation zur Verwendung bei Kanalschätzung
US7372892B2 (en) * 2002-04-29 2008-05-13 Interdigital Technology Corporation Simple and robust digital code tracking loop for wireless communication systems
US7340017B1 (en) * 2002-07-30 2008-03-04 National Semiconductor Corporation System and method for finger management in a rake receiver
CA2509189A1 (en) * 2002-11-15 2004-06-03 Telecom Italia S.P.A. Early-late synchronizer having reduced timing jitter
US7545867B1 (en) * 2003-05-14 2009-06-09 Marvell International, Ltd. Adaptive channel bandwidth selection for MIMO wireless systems
EP1551109B1 (de) * 2004-01-05 2009-11-25 STMicroelectronics N.V. Verfahren zur Unterdrückung von falschen Echos in einem Rake-Empfänger
US20050265219A1 (en) * 2004-05-11 2005-12-01 Texas Instruments Incorporated Orthogonal frequency division multiplex (OFDM) packet detect unit, method of detecting an OFDM packet and OFDM receiver employing the same
US7639766B2 (en) * 2004-09-27 2009-12-29 Via Telecom Co., Ltd. Combined automatic frequency correction and time track system to minimize sample timing errors
KR100703203B1 (ko) * 2005-10-26 2007-04-06 삼성전기주식회사 직접 시퀀스 확산 대역 신호의 코드 검출 장치 및 그 방법
EP1990927A4 (de) * 2006-02-28 2012-02-08 Nec Corp Mobilkommunikationssystemempfänger, pfadfolgeverfahren und steuerprogramm davon
US20080310485A1 (en) * 2007-06-15 2008-12-18 Qualcomm Incorporated System and methods for controlling modem hardware
US7447276B1 (en) * 2007-08-29 2008-11-04 Harris Corporation Receiver and method for blind adaptive thresholding using noise estimator
GB2454865B (en) 2007-11-05 2012-06-13 Picochip Designs Ltd Power control
JP4512835B2 (ja) * 2008-05-02 2010-07-28 テクトロニクス・インターナショナル・セールス・ゲーエムベーハー コンスタレーション表示方法及び装置
GB2466661B (en) * 2009-01-05 2014-11-26 Intel Corp Rake receiver
GB2470037B (en) 2009-05-07 2013-07-10 Picochip Designs Ltd Methods and devices for reducing interference in an uplink
GB2470771B (en) 2009-06-05 2012-07-18 Picochip Designs Ltd A method and device in a communication network
GB2470891B (en) 2009-06-05 2013-11-27 Picochip Designs Ltd A method and device in a communication network
US20110069741A1 (en) * 2009-09-24 2011-03-24 Alan Erickson System and method for seismological sounding
GB2474071B (en) 2009-10-05 2013-08-07 Picochip Designs Ltd Femtocell base station
EP2538874A4 (de) * 2010-02-24 2017-06-21 Syneron Medical Ltd. Körperformgebungsvorrichtung
GB2482869B (en) 2010-08-16 2013-11-06 Picochip Designs Ltd Femtocell access control
GB2489919B (en) 2011-04-05 2018-02-14 Intel Corp Filter
GB2489716B (en) 2011-04-05 2015-06-24 Intel Corp Multimode base system
GB2491098B (en) 2011-05-16 2015-05-20 Intel Corp Accessing a base station
US20130257667A1 (en) * 2012-03-30 2013-10-03 Broadcom Corporation Antenna Tuning
CN106302267B (zh) * 2015-05-11 2019-05-28 辰芯科技有限公司 一种单强径信道检测方法及装置
EP3255805B1 (de) * 2016-06-08 2020-09-02 Nxp B.V. System und verfahren für signalverarbeitung

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4513383A (en) * 1981-09-24 1985-04-23 Rockwell International Corporation Separation of communication signals in an adaptive antenna array
FI932605A (fi) * 1993-06-07 1994-12-08 Nokia Telecommunications Oy Tukiasemavastaanotinlaitteisto
US5978423A (en) * 1996-02-02 1999-11-02 Telefoanktiebolaget Lm Ericsson Method and arrangement of signal tracking and a rake-receiver utilizing the arrangement
US6345078B1 (en) * 1997-07-31 2002-02-05 Lucent Technologies Inc. Finger assignment system for a multiple finger receiver and method thereof
US6078611A (en) 1997-09-16 2000-06-20 Motorola, Inc. Rake receiver and finger management method for spread spectrum communication
US6269075B1 (en) * 1998-01-26 2001-07-31 Nokia Mobile Phones Limited Finger assignment in a CDMA rake receiver
JPH11261440A (ja) * 1998-03-11 1999-09-24 Oki Electric Ind Co Ltd 合成受信装置
US6125137A (en) * 1998-09-11 2000-09-26 Motorola, Inc. Apparatus and method for performing a signal search in a coherent wireless communication system
DE19845620A1 (de) * 1998-10-05 2000-04-27 Systemonic Ag Verfahren zum Empfang von Spreizspektrumsignalen
US6625197B1 (en) * 1998-10-27 2003-09-23 Qualcomm Incorporated Method and apparatus for multipath demodulation in a code division multiple access communication system

Also Published As

Publication number Publication date
EP1134908A3 (de) 2004-05-19
EP1134908A2 (de) 2001-09-19
DE60133333D1 (de) 2008-05-08
EP1134908B1 (de) 2008-03-26
US20020006158A1 (en) 2002-01-17
US7184457B2 (en) 2007-02-27
JP2001352276A (ja) 2001-12-21
DE60133333T2 (de) 2009-04-23

Similar Documents

Publication Publication Date Title
ATE390764T1 (de) Wegschätzung bei spreizspektrum
PA8521101A1 (es) COMPUESTOS DE PIRROLO (2,3-d) PIRIMIDINA
WO2002073230A3 (en) Wireless communications methods and systems for short-code and other spread spectrum waveform processing
TNSN06154A1 (fr) 5,7-diaminopyrazolo [4,3 - d] pyrimidines a activite inhibitrice de pde-5.
DE69827884D1 (de) CDMA Rake-Empfangsgerät
DE60119602D1 (de) Korrelator Koprozessor für CDMA Rake-Empfänger
BR0110624B1 (pt) dispositivo fixador anular.
MXPA03000263A (es) Correlacion del objetivo de fuentes multiples.
DK2273689T3 (da) CDMA-transmitter.
ITRM20000483A0 (it) Capo di abbigliamento strutturato per la protezione del motociclista.
GB0005842D0 (en) Copoymer
GB2381723A (en) A family of linear multi-user detectors (MUDS)
EE200200275A (et) Immunosupressantidena kasutatavad 2,4-diaminopürimidiiniühendid
DE69831298D1 (de) Diodenlaserschutzschaltung
FR2830588B1 (fr) Dispositif d'embrayage multiple
DE69922116D1 (de) Spreizspektrumdiversitysender/-empfänger
NO20000921D0 (no) Fibrinogenbasert vevklebemiddel
EP0932262A3 (de) Signalempfangsgerät für zellulares DS-CDMA System
DE60027180D1 (de) Korrelator
DE60200433D1 (de) Mehrbenutzerstörungsunterdrückungsvorrichtung
DE69942743D1 (de) Ein Bit Korrelation-Rake-Empfänger
DE50104176D1 (de) Umlauf-Integration-Korrelation
FR2820081B1 (fr) Module de transfert
DE60031472D1 (de) CDMA Empfänger
FR2828064B1 (fr) Utilisation de derives terpeniques comme agent anti-rebond augmentant la retention

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties