DE60014779D1 - Einrichtung zum Umkehrspreitzen des Spectrum, Einrichtung zur Zeitpunktdetedtion, Kanalschätzer, Frequensmessung und automatische Frequenzregelung - Google Patents

Einrichtung zum Umkehrspreitzen des Spectrum, Einrichtung zur Zeitpunktdetedtion, Kanalschätzer, Frequensmessung und automatische Frequenzregelung

Info

Publication number
DE60014779D1
DE60014779D1 DE2000614779 DE60014779T DE60014779D1 DE 60014779 D1 DE60014779 D1 DE 60014779D1 DE 2000614779 DE2000614779 DE 2000614779 DE 60014779 T DE60014779 T DE 60014779T DE 60014779 D1 DE60014779 D1 DE 60014779D1
Authority
DE
Germany
Prior art keywords
spectrum
time detection
channel estimator
frequency control
reverse spreading
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 - Fee Related
Application number
DE2000614779
Other languages
English (en)
Other versions
DE60014779T2 (de
Inventor
Toshiyuki Okuyama
Osamu Ohnishi
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.)
NEC Electronics Corp
Original Assignee
NEC Electronics Corp
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 NEC Electronics Corp filed Critical NEC Electronics Corp
Application granted granted Critical
Publication of DE60014779D1 publication Critical patent/DE60014779D1/de
Publication of DE60014779T2 publication Critical patent/DE60014779T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0063—Elements of loops
    • H04L2027/0065—Frequency error detectors

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Radio Relay Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
DE2000614779 1999-06-23 2000-06-23 Einrichtung zum Umkehrspreitzen des Spectrum, Einrichtung zur Zeitpunktdetedtion, Kanalschätzer, Frequensmessung und automatische Frequenzregelung Expired - Fee Related DE60014779T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP17709899 1999-06-23
JP17709899 1999-06-23
JP31390099A JP3329383B2 (ja) 1999-06-23 1999-11-04 逆拡散器とタイミング検出装置とチャネル推定装置および周波数誤差測定方法とａｆｃ制御方法
JP31390099 1999-11-04

Publications (2)

Publication Number Publication Date
DE60014779D1 true DE60014779D1 (de) 2004-11-18
DE60014779T2 DE60014779T2 (de) 2005-10-13

Family

ID=26497758

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2000614779 Expired - Fee Related DE60014779T2 (de) 1999-06-23 2000-06-23 Einrichtung zum Umkehrspreitzen des Spectrum, Einrichtung zur Zeitpunktdetedtion, Kanalschätzer, Frequensmessung und automatische Frequenzregelung

Country Status (5)

Country Link
US (1) US7315590B1 (de)
EP (1) EP1063779B9 (de)
JP (1) JP3329383B2 (de)
CN (1) CN1119881C (de)
DE (1) DE60014779T2 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10124223A1 (de) * 2001-05-18 2002-11-21 Philips Corp Intellectual Pty Verfahren und Einrichtung zur Synchronisation eines Funksenders mit einem Funkempfänger
US6636574B2 (en) * 2001-05-31 2003-10-21 Motorola, Inc. Doppler spread/velocity estimation in mobile wireless communication devices and methods therefor
JP4154591B2 (ja) * 2003-04-25 2008-09-24 日本電気株式会社 周波数オフセットの検出処理システム及びそれを用いた周波数オフセットの検出処理方法
JP4318569B2 (ja) * 2004-01-28 2009-08-26 三洋電機株式会社 相関器およびそれを利用した受信装置
US7822397B2 (en) * 2004-08-27 2010-10-26 Silicon Laboratories Inc. Method and apparatus for frequency hopping medium access control in a wireless network
US7680224B2 (en) * 2004-08-27 2010-03-16 Silicon Laboratories Inc. Apparatus and method for automatic frequency correction for a receiver system
US7436878B1 (en) * 2005-05-24 2008-10-14 L-3 Communications Corporation Method and apparatus for efficient carrier bin search for a composite spreading code
US7865158B2 (en) * 2005-07-26 2011-01-04 Interdigital Technology Corporation Method and apparatus for automatically correcting receiver oscillator frequency
US20070047671A1 (en) * 2005-08-25 2007-03-01 Mediatek Inc. Frequency tracking and channel estimation in orthogonal frequency division multiplexing systems
US20070202928A1 (en) * 2006-02-28 2007-08-30 Landau Uri M Method and apparatus for user equipment (UE) channel acquisition in the presence of large frequency uncertainty in WCDMA signals
US7809344B2 (en) * 2006-07-20 2010-10-05 Industrial Technology Research Institute Fractional carrier frequency offset estimator and method of estimating fractional carrier frequency offset between transmitter and receiver
US20080063046A1 (en) * 2006-09-12 2008-03-13 Johannes Hendrik Conroy Method and System for Estimating Signal Error in a Communication System
CN101197590B (zh) 2006-12-04 2011-08-17 海能达通信股份有限公司 一种在无线通信中实现位同步数字化的方法及其系统
US7889782B2 (en) * 2007-02-23 2011-02-15 Freescale Semiconductor, Inc. Joint de-spreading and frequency correction using a correlator
KR100942702B1 (ko) 2007-08-30 2010-02-17 한국전자통신연구원 심볼 오류정정이 가능한 주파수 선택적 기저대역을사용하는 변복조 방법 및 그 장치
CN102217215B (zh) * 2008-11-28 2013-11-06 株式会社日立制作所 光电场发送器和光传送系统
CN102474482A (zh) * 2009-07-03 2012-05-23 松下电器产业株式会社 载波频率同步检测电路及相关运算器
DE102010055504A1 (de) * 2010-12-22 2012-06-28 Atmel Automotive Gmbh Sende-Empfangs-Vorrichtung und Verfahren zum Betrieb einer Sende-Empfangsvorrichtung
US9143190B2 (en) * 2013-03-11 2015-09-22 Freescale Semiconductor,Inc System and method for demodulating an incoming signal

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4621365A (en) 1984-11-16 1986-11-04 Hughes Aircraft Company Synchronization preamble correlation detector and frequency estimator
US5179573A (en) * 1992-02-13 1993-01-12 Gec-Marconi Electronic Systems Corp. Amplitude measurement of received pseudonoise sequence using digital correlation
JP2672769B2 (ja) 1992-06-29 1997-11-05 三菱電機株式会社 スペクトル拡散受信機
US5285472A (en) * 1993-02-24 1994-02-08 Gec-Marconi Electronic Systems Corp. System for determining the acquisition of, and frequency compensating, a phase modulated pseudonoise sequence signal
US5566202A (en) * 1995-04-19 1996-10-15 Gec-Marconi Electronic Systems Corp. System using a split correlator for frequency compensating a phase modulated pseudonoise sequence signal
ZA965340B (en) * 1995-06-30 1997-01-27 Interdigital Tech Corp Code division multiple access (cdma) communication system
JP3193613B2 (ja) * 1996-01-12 2001-07-30 株式会社日立国際電気 相関ピーク検出型周波数誤差検出回路
JP2861985B2 (ja) 1997-06-16 1999-02-24 日本電気株式会社 Ｃｄｍａ用高速セルサーチ方式
JP3971861B2 (ja) 1999-02-09 2007-09-05 株式会社日立国際電気 Ｃｄｍａ受信信号の位相補正装置

Also Published As

Publication number Publication date
DE60014779T2 (de) 2005-10-13
CN1119881C (zh) 2003-08-27
EP1063779B1 (de) 2004-10-13
CN1279545A (zh) 2001-01-10
EP1063779B9 (de) 2005-01-19
US7315590B1 (en) 2008-01-01
EP1063779A2 (de) 2000-12-27
JP2001069040A (ja) 2001-03-16
EP1063779A3 (de) 2003-04-23
JP3329383B2 (ja) 2002-09-30

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee