CA2091782A1 - Appareil et methode de reception de signaux a spectre etale a trajets multiples - Google Patents

Appareil et methode de reception de signaux a spectre etale a trajets multiples

Info

Publication number
CA2091782A1
CA2091782A1 CA2091782A CA2091782A CA2091782A1 CA 2091782 A1 CA2091782 A1 CA 2091782A1 CA 2091782 A CA2091782 A CA 2091782A CA 2091782 A CA2091782 A CA 2091782A CA 2091782 A1 CA2091782 A1 CA 2091782A1
Authority
CA
Canada
Prior art keywords
chip
code
spread
signal
time delay
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.)
Granted
Application number
CA2091782A
Other languages
English (en)
Other versions
CA2091782C (fr
Inventor
Donald L. Schilling
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.)
InterDigital Technology Corp
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24462871&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2091782(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of CA2091782A1 publication Critical patent/CA2091782A1/fr
Application granted granted Critical
Publication of CA2091782C publication Critical patent/CA2091782C/fr
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
    • H04B1/7113—Determination of path profile
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

Appareil destiné à s'adapter pour recevoir un trajet spécifique, présentant la plus grande amplitude, d'un signal à spectre étalé se propageant par trajets multiples. Le signal à spectre étalé est modulé par un code d'éléments. Un générateur (401) de codes d'éléments génère un signal à spectre étalé. Une pluralité de registres à décalage décalent le signal à code d'éléments selon une pluralité de temps de propagation. Un premier et un second compteurs en anneau (405, 409) génèrent un premier et un second signaux de mise en séquence destinés à commander un premier et un second dispositifs commutateurs (407, 411). Le premier dispositif commutateur effectue une commutation successive entre une pluralité de prises des registres à décalage dans le sens d'une augmentation ou d'une diminution des retards pour la génération du signal à code d'éléments ayant le premier temps de propagation. Le second dispositif commutateur effectue une commutation successive entre la pluralité de prises des registres à décalage dans le sens d'une augmentation ou d'une diminution des retards pour la génération du signal à code d'éléments ayant un second temps de propagation. Un premier corrélateur effectue la corrélation du signal à spectre étalé reçu à l'entrée avec le signal à code d'éléments ayant le premier temps de propagation. Un second corrélateur effectue la corrélation du signal à spectre étalé reçu à l'entrée avec le signal à code d'éléments ayant le second temps de propagation. Un comparateur produit un premier et un second signaux de comparateur en comparant les sorties des premier et second corrélateurs.
CA002091782A 1990-11-16 1991-11-14 Appareil et methode de reception de signaux a spectre etale a trajets multiples Expired - Lifetime CA2091782C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/614,827 US5081643A (en) 1990-11-16 1990-11-16 Spread spectrum multipath receiver apparatus and method
US614,827 1990-11-16
PCT/US1991/008412 WO1992009155A1 (fr) 1990-11-16 1991-11-14 Appareil de reception par trajets multiples a etalement du spectre, et procede

Publications (2)

Publication Number Publication Date
CA2091782A1 true CA2091782A1 (fr) 1992-05-17
CA2091782C CA2091782C (fr) 2000-07-18

Family

ID=24462871

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002091782A Expired - Lifetime CA2091782C (fr) 1990-11-16 1991-11-14 Appareil et methode de reception de signaux a spectre etale a trajets multiples

Country Status (6)

Country Link
US (1) US5081643A (fr)
EP (1) EP0515624B1 (fr)
CA (1) CA2091782C (fr)
DE (1) DE69129983T2 (fr)
ES (1) ES2121842T3 (fr)
WO (1) WO1992009155A1 (fr)

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US5345467A (en) * 1991-07-10 1994-09-06 Interdigital Technology Corp. CDMA cellular hand-off apparatus and method
US5365516A (en) * 1991-08-16 1994-11-15 Pinpoint Communications, Inc. Communication system and method for determining the location of a transponder unit
US5315615A (en) * 1992-12-31 1994-05-24 Gte Government Systems Corporation DSSS communications correlation
US5343495A (en) * 1992-12-31 1994-08-30 Gte Government Systems Corporation Method of multipath dsss communications
USH1626H (en) * 1993-01-28 1997-01-07 Kersey; Alan D. Fiber optic network system with low crosstalk using code-division multiplexing
US5381446A (en) * 1993-06-25 1995-01-10 Digital Wireless Corp. Digital implementation of spread spectrum communications system
IL111469A0 (en) * 1993-11-01 1994-12-29 Omnipoint Corp Despreading/demodulating direct sequence spread spectrum signals
US5659572A (en) * 1993-11-22 1997-08-19 Interdigital Technology Corporation Phased array spread spectrum system and method
US5422908A (en) * 1993-11-22 1995-06-06 Interdigital Technology Corp. Phased array spread spectrum system and method
US5440597A (en) * 1993-11-23 1995-08-08 Nokia Mobile Phones Ltd. Double dwell maximum likelihood acquisition system with continuous decision making for CDMA and direct spread spectrum system
JP2689890B2 (ja) * 1993-12-30 1997-12-10 日本電気株式会社 スペクトラム拡散受信機
US5719899A (en) * 1994-02-25 1998-02-17 U.S. Philips Corporation Multiple access digital transmission system and a radio base station and a receiver for use in such a system
US5559828A (en) * 1994-05-16 1996-09-24 Armstrong; John T. Transmitted reference spread spectrum communication using a single carrier with two mutually orthogonal modulated basis vectors
US5630208A (en) * 1994-07-19 1997-05-13 Trimble Navigation Limited Adaptive multipath equalization
US5614914A (en) * 1994-09-06 1997-03-25 Interdigital Technology Corporation Wireless telephone distribution system with time and space diversity transmission for determining receiver location
US5574747A (en) * 1995-01-04 1996-11-12 Interdigital Technology Corporation Spread spectrum adaptive power control system and method
US5629639A (en) * 1995-06-07 1997-05-13 Omnipoint Corporation Correlation peak detector
US5671221A (en) * 1995-06-14 1997-09-23 Sharp Microelectronics Technology, Inc. Receiving method and apparatus for use in a spread-spectrum communication system
US7123600B2 (en) * 1995-06-30 2006-10-17 Interdigital Technology Corporation Initial power control for spread-spectrum communications
US7929498B2 (en) * 1995-06-30 2011-04-19 Interdigital Technology Corporation Adaptive forward power control and adaptive reverse power control for spread-spectrum communications
US7020111B2 (en) * 1996-06-27 2006-03-28 Interdigital Technology Corporation System for using rapid acquisition spreading codes for spread-spectrum communications
ZA965340B (en) * 1995-06-30 1997-01-27 Interdigital Tech Corp Code division multiple access (cdma) communication system
US6885652B1 (en) * 1995-06-30 2005-04-26 Interdigital Technology Corporation Code division multiple access (CDMA) communication system
US6108364A (en) * 1995-08-31 2000-08-22 Qualcomm Incorporated Time division duplex repeater for use in a CDMA system
US5825807A (en) * 1995-11-06 1998-10-20 Kumar; Derek D. System and method for multiplexing a spread spectrum communication system
US5966401A (en) * 1995-12-27 1999-10-12 Kumar; Derek D. RF simplex spread spectrum receiver and method with symbol deinterleaving prior to bit estimating
US5757791A (en) * 1996-04-18 1998-05-26 American Wireless Technology, Inc. Multistage linear receiver for DS-CDMA systems
US5966403A (en) * 1996-07-19 1999-10-12 Trimble Navigation Limited Code multipath error estimation using weighted correlations
US6061359A (en) 1996-08-02 2000-05-09 Golden Bridge Technology, Inc. Increased-capacity, packet spread-spectrum system and method
US6243772B1 (en) 1997-01-31 2001-06-05 Sharewave, Inc. Method and system for coupling a personal computer with an appliance unit via a wireless communication link to provide an output display presentation
US6282714B1 (en) 1997-01-31 2001-08-28 Sharewave, Inc. Digital wireless home computer system
US6349110B1 (en) 1997-02-24 2002-02-19 Golden Bridge Technology, Inc. Subsystem and method for combining spread-spectrum multipath signals
US5956369A (en) * 1997-02-24 1999-09-21 Golden Bridge Technology, Inc. Spread spectrum multipath combining subsystem and method
US20020051434A1 (en) * 1997-10-23 2002-05-02 Ozluturk Fatih M. Method for using rapid acquisition spreading codes for spread-spectrum communications
US6014405A (en) * 1997-10-24 2000-01-11 Golden Bridge Technology, Inc. Spread spectrum multipath receiver without a tracking loop
US6108327A (en) * 1998-02-02 2000-08-22 Golden Bridge Technology, Inc. Orthogonal spread spectrum system
US6078576A (en) * 1998-02-04 2000-06-20 Golden Bridge Technology, Inc. High processing gain CDMA/TDMA system and method
US6075793A (en) * 1998-02-06 2000-06-13 Golden Bridge Technology, Inc. High efficiency spread spectrum system and method
US6130906A (en) * 1998-05-22 2000-10-10 Golden Bridge Technology, Inc. Parallel code matched filter
US6128330A (en) 1998-11-24 2000-10-03 Linex Technology, Inc. Efficient shadow reduction antenna system for spread spectrum
JP4035803B2 (ja) * 1999-02-19 2008-01-23 富士通株式会社 移動パケット通信システム
KR100452860B1 (ko) * 2000-06-20 2004-10-14 삼성전자주식회사 훈련 신호를 이용한 적응 등화기용 필터 탭 길이 조정장치 및 방법
US7099381B2 (en) * 2000-09-26 2006-08-29 Kawasaki Microelectronics, Inc. De-spreading method and de-spreading apparatus
US7129753B2 (en) * 2004-05-26 2006-10-31 Infineon Technologies Ag Chip to chip interface
US20060237384A1 (en) * 2005-04-20 2006-10-26 Eric Neumann Track unit with removable partitions
RU2497285C1 (ru) * 2012-05-25 2013-10-27 Открытое акционерное общество "Концерн "Созвездие" Способ обнаружения радиоэлектронных средств
RU2653576C1 (ru) * 2017-05-15 2018-05-11 Алексей Николаевич Бегаев Способ обнаружения несанкционированно установленных электронных устройств с обучением
CN111371714B (zh) * 2020-03-12 2022-10-25 北京神州天鸿控股有限公司 多径信号分离方法、装置、接收机及系统

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US4914699A (en) * 1988-10-11 1990-04-03 Itt Corporation High frequency anti-jam communication system terminal

Also Published As

Publication number Publication date
EP0515624A1 (fr) 1992-12-02
ES2121842T3 (es) 1998-12-16
EP0515624A4 (en) 1993-08-11
DE69129983D1 (de) 1998-09-17
WO1992009155A1 (fr) 1992-05-29
DE69129983T2 (de) 1999-04-29
EP0515624B1 (fr) 1998-08-12
US5081643A (en) 1992-01-14
CA2091782C (fr) 2000-07-18

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Effective date: 20111114