WO2000067387A1 - Procede permettant de determiner le debut d'une impulsion dans un systeme a spectre etale - Google Patents

Procede permettant de determiner le debut d'une impulsion dans un systeme a spectre etale Download PDF

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Publication number
WO2000067387A1
WO2000067387A1 PCT/EP2000/004189 EP0004189W WO0067387A1 WO 2000067387 A1 WO2000067387 A1 WO 2000067387A1 EP 0004189 W EP0004189 W EP 0004189W WO 0067387 A1 WO0067387 A1 WO 0067387A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit
integration
symbol
station
signal
Prior art date
Application number
PCT/EP2000/004189
Other languages
English (en)
Inventor
Olivier Paviot
Original Assignee
Koninklijke Philips Electronics N.V.
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 Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Priority to JP2000616132A priority Critical patent/JP2002543734A/ja
Priority to KR1020017000005A priority patent/KR20010053361A/ko
Priority to EP00931164A priority patent/EP1095466A1/fr
Publication of WO2000067387A1 publication Critical patent/WO2000067387A1/fr

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
    • 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
    • H04B1/7077—Multi-step acquisition, e.g. multi-dwell, coarse-fine or validation
    • H04B1/70775—Multi-dwell schemes, i.e. multiple accumulation times
    • 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
    • H04B2201/70702—Intercell-related aspects

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Cette unité comprend un système dans lequel l'information est transmise sous forme de symboles apparaissant dans des périodes de symboles. L'unité comprend un circuit de réception dans lequel un circuit de synchronisation est prévu pour fournir une indication du début d'un symbole. Le circuit de synchronisation comporte un circuit de mesure qui mesure l'énergie du signal envoyé, un premier circuit d'intégration qui sert à intégrer cette mesure de l'énergie, un deuxième circuit d'intégration qui intègre cette même mesure de l'énergie en fonction du signal de sortie du premier circuit d'intégration. En dernier lieu, un circuit de seuil produit un signal de début du symbole reçu sur la base du signal de sortie du deuxième circuit d'intégration.
PCT/EP2000/004189 1999-05-04 2000-05-01 Procede permettant de determiner le debut d'une impulsion dans un systeme a spectre etale WO2000067387A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2000616132A JP2002543734A (ja) 1999-05-04 2000-05-01 スペクトル拡散方式においてパルスの開始を決定する方法
KR1020017000005A KR20010053361A (ko) 1999-05-04 2000-05-01 스펙트럼 확산 시스템 안에서 펄스의 개시를 결정하기위한 방법
EP00931164A EP1095466A1 (fr) 1999-05-04 2000-05-01 Procede permettant de determiner le debut d'une impulsion dans un systeme a spectre etale

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP99401088 1999-05-04
EP99401088.2 1999-05-04

Publications (1)

Publication Number Publication Date
WO2000067387A1 true WO2000067387A1 (fr) 2000-11-09

Family

ID=8241967

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/004189 WO2000067387A1 (fr) 1999-05-04 2000-05-01 Procede permettant de determiner le debut d'une impulsion dans un systeme a spectre etale

Country Status (6)

Country Link
EP (1) EP1095466A1 (fr)
JP (1) JP2002543734A (fr)
KR (1) KR20010053361A (fr)
CN (1) CN1302483A (fr)
TW (1) TW503630B (fr)
WO (1) WO2000067387A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1416638A1 (fr) * 2002-10-30 2004-05-06 Agency for Science, Technology and Research Procede et appareil pour une circuit de génération d'un signal de commande

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI314115B (en) 2007-09-27 2009-09-01 Ind Tech Res Inst Method and apparatus for predicting/alarming the moving of hidden objects
CN102468865A (zh) * 2010-11-18 2012-05-23 中兴通讯股份有限公司 一种小区搜索粗同步的方法和装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5499273A (en) * 1995-05-11 1996-03-12 Motorola, Inc. Method and apparatus for symbol clock recovery from signal having wide frequency possibilities
US5872808A (en) * 1995-05-25 1999-02-16 Golden Bridge Technology, Inc. Apparatus and method for synchronization of direct sequence CDMA signals

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5499273A (en) * 1995-05-11 1996-03-12 Motorola, Inc. Method and apparatus for symbol clock recovery from signal having wide frequency possibilities
US5872808A (en) * 1995-05-25 1999-02-16 Golden Bridge Technology, Inc. Apparatus and method for synchronization of direct sequence CDMA signals

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1416638A1 (fr) * 2002-10-30 2004-05-06 Agency for Science, Technology and Research Procede et appareil pour une circuit de génération d'un signal de commande
SG121741A1 (en) * 2002-10-30 2006-05-26 Stmicooelectronics Asia Pacifi Method and apparatus for a control signal generating circuit

Also Published As

Publication number Publication date
KR20010053361A (ko) 2001-06-25
EP1095466A1 (fr) 2001-05-02
TW503630B (en) 2002-09-21
CN1302483A (zh) 2001-07-04
JP2002543734A (ja) 2002-12-17

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