DE69429715T2 - Empfänger für spreizspektrumübertragung - Google Patents

Empfänger für spreizspektrumübertragung

Info

Publication number
DE69429715T2
DE69429715T2 DE1994629715 DE69429715T DE69429715T2 DE 69429715 T2 DE69429715 T2 DE 69429715T2 DE 1994629715 DE1994629715 DE 1994629715 DE 69429715 T DE69429715 T DE 69429715T DE 69429715 T2 DE69429715 T2 DE 69429715T2
Authority
DE
Germany
Prior art keywords
receiver
spectrum transmission
spreading spectrum
spreading
transmission
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 - Lifetime
Application number
DE1994629715
Other languages
English (en)
Other versions
DE69429715D1 (de
Inventor
Tomohiro Dohi
Mamoru Sawahashi
Fumiyuki Adachi
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.)
NTT Docomo Inc
Original Assignee
NTT Docomo 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 NTT Docomo Inc filed Critical NTT Docomo Inc
Application granted granted Critical
Publication of DE69429715D1 publication Critical patent/DE69429715D1/de
Publication of DE69429715T2 publication Critical patent/DE69429715T2/de
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
    • 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)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Noise Elimination (AREA)
DE1994629715 1993-10-13 1994-10-12 Empfänger für spreizspektrumübertragung Expired - Lifetime DE69429715T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP25563393 1993-10-13
PCT/JP1994/001701 WO1995010891A1 (fr) 1993-10-13 1994-10-12 Recepteur pour communications par etalement du spectre

Publications (2)

Publication Number Publication Date
DE69429715D1 DE69429715D1 (de) 2002-03-14
DE69429715T2 true DE69429715T2 (de) 2002-08-08

Family

ID=17281465

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1994629715 Expired - Lifetime DE69429715T2 (de) 1993-10-13 1994-10-12 Empfänger für spreizspektrumübertragung

Country Status (6)

Country Link
US (1) US5594754A (de)
EP (1) EP0675606B1 (de)
JP (1) JP2764153B2 (de)
CN (1) CN1035586C (de)
DE (1) DE69429715T2 (de)
WO (1) WO1995010891A1 (de)

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JP2807568B2 (ja) * 1994-02-10 1998-10-08 エヌ・ティ・ティ移動通信網株式会社 適応形スペクトラム拡散受信機
KR970011690B1 (ko) * 1994-11-22 1997-07-14 삼성전자 주식회사 파일럿트 채널을 이용한 대역확산 통신시스템의 데이타 송신기 및 수신기
US5696789A (en) * 1995-03-06 1997-12-09 Unisys Corporation Apparatus and method for signal identification
US5692006A (en) * 1995-07-31 1997-11-25 Qualcomm Incorporated Adaptive despreader
JPH09116475A (ja) * 1995-10-23 1997-05-02 Nec Corp 時間ダイバーシチ送受信システム
FI100494B (fi) * 1995-11-20 1997-12-15 Nokia Telecommunications Oy Menetelmä vastaanottimen ohjaamiseksi ja vastaanotin
JP3307217B2 (ja) * 1996-03-01 2002-07-24 株式会社豊田自動織機 スペクトラム拡散通信方式における受信装置
US6061359A (en) * 1996-08-02 2000-05-09 Golden Bridge Technology, Inc. Increased-capacity, packet spread-spectrum system and method
US5805585A (en) * 1996-08-22 1998-09-08 At&T Corp. Method for providing high speed packet data services for a wireless system
US6034987A (en) * 1996-12-17 2000-03-07 Ericsson Inc. System for improving the quality of a received radio signal
WO1998035458A1 (en) * 1997-02-06 1998-08-13 At & T Wireless Services, Inc. Method of synchronizing a remote station with a base station in a discrete multitone spread spectrum communications system
US5943375A (en) * 1997-02-06 1999-08-24 At&T Wireless Services Inc. Method to indicate synchronization lock of a remote station with a base station
JP3563231B2 (ja) * 1997-04-04 2004-09-08 株式会社デノン 周波数制御装置および方法、受信装置、ならびに、通信装置
FR2767238B1 (fr) * 1997-08-07 1999-10-01 Alsthom Cge Alcatel Dispositifs monocanal et multicanaux de demodulation coherente sans pilote, et ensemble correspondant de reception a plusieurs chemins de diversite
JP3380446B2 (ja) * 1997-10-20 2003-02-24 株式会社鷹山 Ｃｄｍａ通信システム用受信装置
JP3316744B2 (ja) * 1997-10-30 2002-08-19 三菱電機株式会社 Ａｆｃ回路、それを備えた受信機、及び自動周波数制御通信システム
US5955986A (en) * 1997-11-20 1999-09-21 Eagle Eye Technologies, Inc. Low-power satellite-based geopositioning system
US6366607B1 (en) 1998-05-14 2002-04-02 Interdigital Technology Corporation Processing for improved performance and reduced pilot
US6289061B1 (en) * 1998-09-24 2001-09-11 Sharp Laboratories Of America, Inc. Wideband frequency tracking system and method
JP3031355B1 (ja) 1998-10-01 2000-04-10 日本電気株式会社 移動局および移動局におけるａｆｃ制御方法
JP3397238B2 (ja) * 1998-10-01 2003-04-14 日本電気株式会社 移動局および移動局におけるａｆｃ制御方法
US6278725B1 (en) 1998-12-18 2001-08-21 Philips Electronics North America Corporation Automatic frequency control loop multipath combiner for a rake receiver
US6169514B1 (en) 1999-02-04 2001-01-02 Eagle Eye Technologies, Inc. Low-power satellite-based geopositioning system
US7319686B1 (en) * 1999-03-18 2008-01-15 Industrial Technology Research Institute Frame synchronization in multi-cell systems with a data interface
US20040143392A1 (en) 1999-07-12 2004-07-22 Skybitz, Inc. System and method for fast acquisition reporting using communication satellite range measurement
US6480788B2 (en) * 1999-07-12 2002-11-12 Eagle-Eye, Inc. System and method for fast acquisition reporting using communication satellite range measurement
US8255149B2 (en) 1999-07-12 2012-08-28 Skybitz, Inc. System and method for dual-mode location determination
US6560536B1 (en) 1999-07-12 2003-05-06 Eagle-Eye, Inc. System and method for rapid telepositioning
US6208842B1 (en) * 1999-09-30 2001-03-27 Motorola Inc. Method and apparatus for estimating a channel parameter
US6608858B1 (en) * 2000-01-26 2003-08-19 Qualcomm Incorporated Multipath doppler adjusted frequency tracking loop
ES2300884T3 (es) 2000-03-28 2008-06-16 Interdigital Technology Corporation Sistema cdma que usa pre-rotacion antes de la transmision.
CA2418855A1 (en) 2000-08-09 2002-02-14 Skybitz, Inc. System and method for fast code phase and carrier frequency acquisition in gps receiver
JP3464645B2 (ja) 2000-08-30 2003-11-10 松下電器産業株式会社 無線受信装置
CA2422776A1 (en) * 2000-09-18 2002-03-28 Skybitz, Inc. System and method for fast code phase and carrier frequency acquisition in gps receiver
US7443826B1 (en) 2000-10-04 2008-10-28 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for automatic frequency control in a CDMA receiver
GB2369275B (en) 2000-11-21 2004-07-07 Ubinetics Ltd A rake receiver and a method of providing a frequency error estimate
JP3835800B2 (ja) * 2002-02-08 2006-10-18 株式会社東芝 受信フレームの同期方法、および、受信装置
US6741665B2 (en) * 2002-06-20 2004-05-25 Nokia Corporation Method and apparatus providing an amplitude independent automatic frequency control circuit
EP1383239A1 (de) * 2002-07-17 2004-01-21 STMicroelectronics N.V. Verfahren und Einrichtung zur automatischen Frequenzregelung in einem DS-CDMA-Empfänger
FR2843249A1 (fr) * 2002-07-31 2004-02-06 Koninkl Philips Electronics Nv Recepteur comportant des moyens de reception multiples en parallele.
US7301993B2 (en) * 2002-09-13 2007-11-27 Broadcom Corporation Channel estimation in a spread spectrum receiver
US7483479B2 (en) * 2004-09-16 2009-01-27 Keyeye Communications Scaled signal processing elements for reduced filter tap noise
EP1681773A1 (de) * 2005-01-13 2006-07-19 Centre National D'etudes Spatiales Spreizspektrumsignal
CN1317830C (zh) * 2005-04-15 2007-05-23 展讯通信（上海）有限公司 自动频偏校正方法及使用该方法的装置和接收机
US7421252B2 (en) * 2005-08-02 2008-09-02 Freescale Semiconductor, Inc. Center frequency control of an integrated phase rotator band-pass filter using VCO coarse trim bits
CN101283520B (zh) * 2005-10-03 2012-09-26 日本电气株式会社 包括均衡器的信号接收设备、终端设备及信号接收方法
US8743848B2 (en) 2009-05-26 2014-06-03 Broadcom Corporation Hybrid location determination for wireless communication device
US8229041B2 (en) 2009-05-26 2012-07-24 Broadcom Corporation Direct detection of wireless interferers in a communication device for multiple modulation types
WO2015017986A1 (en) * 2013-08-06 2015-02-12 Motorola Solutions, Inc. Very low intermediate frequency (vlif) receiver and method of controlling vlif recewer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4841544A (en) * 1987-05-14 1989-06-20 The Charles Stark Draper Laboratory, Inc. Digital direct sequence spread spectrum receiver
JPH0748709B2 (ja) * 1988-12-20 1995-05-24 三菱電機株式会社 ダイレクトシーケンス復調装置
US5150377A (en) * 1990-11-02 1992-09-22 At&T Bell Laboratories Direct sequence spread spectrum (dsss) communications system with frequency modulation utilized to achieve spectral spreading
US5218619A (en) * 1990-12-17 1993-06-08 Ericsson Ge Mobile Communications Holding, Inc. CDMA subtractive demodulation
US5467367A (en) * 1991-06-07 1995-11-14 Canon Kabushiki Kaisha Spread spectrum communication apparatus and telephone exchange system
US5271034A (en) * 1991-08-26 1993-12-14 Avion Systems, Inc. System and method for receiving and decoding global positioning satellite signals
JP2698507B2 (ja) * 1992-06-29 1998-01-19 三菱電機株式会社 Ａｆｃ回路
KR950009406B1 (ko) * 1992-11-27 1995-08-22 삼성전자주식회사 코드분할 다중접근(cdma) 직접확산(ds) 방식 수신기의 클럭 복구안정화방법 및 회로

Also Published As

Publication number Publication date
EP0675606A4 (de) 1997-05-21
CN1035586C (zh) 1997-08-06
EP0675606A1 (de) 1995-10-04
JP2764153B2 (ja) 1998-06-11
WO1995010891A1 (fr) 1995-04-20
DE69429715D1 (de) 2002-03-14
EP0675606B1 (de) 2002-01-23
US5594754A (en) 1997-01-14
CN1115590A (zh) 1996-01-24

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Legal Events

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