DE69919924D1 - Anpassbares Erfassungssystem für Speizspektrumübertragungen mit Kompensation von Frequenzversatz und Rauschen - Google Patents

Anpassbares Erfassungssystem für Speizspektrumübertragungen mit Kompensation von Frequenzversatz und Rauschen

Info

Publication number
DE69919924D1
DE69919924D1 DE69919924T DE69919924T DE69919924D1 DE 69919924 D1 DE69919924 D1 DE 69919924D1 DE 69919924 T DE69919924 T DE 69919924T DE 69919924 T DE69919924 T DE 69919924T DE 69919924 D1 DE69919924 D1 DE 69919924D1
Authority
DE
Germany
Prior art keywords
customizable
compensation
noise
frequency offset
acquisition system
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
DE69919924T
Other languages
English (en)
Other versions
DE69919924T2 (de
Inventor
Sanguoon Chung
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.)
Sony Electronics Inc
Original Assignee
Sony Electronics 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 Sony Electronics Inc filed Critical Sony Electronics Inc
Publication of DE69919924D1 publication Critical patent/DE69919924D1/de
Application granted granted Critical
Publication of DE69919924T2 publication Critical patent/DE69919924T2/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
    • H04B1/7073—Synchronisation aspects
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H04B1/7077—Multi-step acquisition, e.g. multi-dwell, coarse-fine or validation
    • 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
    • H04B1/70751—Synchronisation aspects with code phase acquisition using partial detection
    • H04B1/70752—Partial correlation
    • 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
    • H04B1/7073—Synchronisation aspects
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H04B1/70754—Setting of search window, i.e. range of code offsets to be searched
    • 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
    • H04B1/70755—Setting of lock conditions, e.g. threshold
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2628—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
    • 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
    • H04B1/70751—Synchronisation aspects with code phase acquisition using partial detection
    • 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
    • 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
    • H04B1/71—Interference-related aspects the interference being narrowband interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/0022—PN, e.g. Kronecker
DE69919924T 1998-03-25 1999-03-17 Anpassbares Erfassungssystem für Speizspektrumübertragungen mit Kompensation von Frequenzversatz und Rauschen Expired - Lifetime DE69919924T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/047,679 US6363049B1 (en) 1998-03-25 1998-03-25 Adaptive acquisition system for CDMA and spread spectrum systems compensating for frequency offset and noise
US47679 1998-03-25

Publications (2)

Publication Number Publication Date
DE69919924D1 true DE69919924D1 (de) 2004-10-14
DE69919924T2 DE69919924T2 (de) 2005-09-22

Family

ID=21950339

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69919924T Expired - Lifetime DE69919924T2 (de) 1998-03-25 1999-03-17 Anpassbares Erfassungssystem für Speizspektrumübertragungen mit Kompensation von Frequenzversatz und Rauschen

Country Status (7)

Country Link
US (1) US6363049B1 (de)
EP (2) EP1447917A1 (de)
JP (1) JP4253066B2 (de)
KR (1) KR100473679B1 (de)
CN (1) CN1134924C (de)
DE (1) DE69919924T2 (de)
HK (1) HK1023006A1 (de)

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JP3251261B2 (ja) * 1999-04-21 2002-01-28 エヌイーシーモバイリング株式会社 Ｃｄｍａ受信装置
JP2001061176A (ja) * 1999-08-20 2001-03-06 Pioneer Electronic Corp 通信装置
FI20002134A (fi) 2000-02-09 2001-08-10 Nokia Networks Oy Koodisynkronointimenetelmä ja vastaanotin
FI20000273A (fi) * 2000-02-09 2001-08-10 Nokia Networks Oy Menetelmä suorittaa koodisynkronointi ja vastaanotin
JP3418981B2 (ja) 2000-02-16 2003-06-23 日本電気株式会社 スペクトラム拡散通信同期捕捉回路
US6735243B1 (en) * 2000-11-08 2004-05-11 Nokia Corporation Method, apparatus and system for fast acquisition of a spread spectrum signal
GB2369017B8 (en) * 2000-11-10 2006-04-06 Ubinetics Ltd Time alignment
US6965632B2 (en) * 2001-06-08 2005-11-15 Sony Corporation Method and apparatus for using adaptive threshold with initial acquisition
KR100869500B1 (ko) * 2001-12-29 2008-11-19 엘지전자 주식회사 통신 시스템에서 주파수 에러 정정 장치 및 방법
US20060129410A1 (en) * 2002-07-05 2006-06-15 Sam Reisenfeld Frequency estimation
US7042961B2 (en) * 2002-07-12 2006-05-09 Applied Micro Circuits Corporation Full rate error detection circuit for use with external circuitry
RU2234135C1 (ru) * 2003-02-27 2004-08-10 Закрытое акционерное общество "КАСИСС" Устройство охранной сигнализации
US7221696B1 (en) * 2003-03-03 2007-05-22 Itt Manufacturing Enterprises, Inc. Communication system and method for acquiring pseudonoise codes or carrier signals under conditions of relatively large chip rate uncertainty
US7292619B2 (en) * 2003-03-03 2007-11-06 Mitsubishi Electric Research Laboratories Method and system for acquiring ultra-wide-bandwidth communications signals using sequential block searches
KR100523671B1 (ko) * 2003-04-30 2005-10-24 매그나칩 반도체 유한회사 이중 게이트절연막을 구비하는 씨모스 이미지 센서 및그의 제조 방법
KR100620889B1 (ko) 2004-07-28 2006-09-19 한국과학기술원 어림 최대 비슷함 비율을 이용한 부호획득 기법
FR2875658B1 (fr) * 2004-09-21 2007-03-02 Commissariat Energie Atomique Estimation du rapport signal a interference plus bruit en sortie d'un recepteur ofdm-cdma.
US7720162B2 (en) * 2005-03-10 2010-05-18 Qualcomm Incorporated Partial FFT processing and demodulation for a system with multiple subcarriers
US7561615B2 (en) 2005-03-18 2009-07-14 Interdigital Technology Corporation Method and apparatus for compensating for phase noise of symbols spread with a long spreading code
US20060222056A1 (en) * 2005-03-29 2006-10-05 Hitachi Kokusai Electric Inc. Base station device
KR100821938B1 (ko) * 2006-04-14 2008-04-15 삼성전자주식회사 무선통신시스템에서 상향링크 주파수 옵셋 추정 장치 및방법
US7864898B2 (en) * 2006-05-17 2011-01-04 Sirf Technology Holdings, Inc. Systems and methods for signal acquistion in navigational satellite signal receivers
CN101192881A (zh) * 2006-11-30 2008-06-04 昂达博思公司 用于快速上行链路空中接口同步的系统和方法
US20090041096A1 (en) * 2007-08-02 2009-02-12 Bae Systems Information And Electronic Systems Integration Inc. Efficient synchronization of a spread spectrum signal in the presence of delay and frequency uncertainty
US7937741B2 (en) * 2007-09-29 2011-05-03 Intel Corporation Platform noise estimation and mitigation
US8300675B2 (en) * 2009-05-13 2012-10-30 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Industry, Through The Communications Research Centre Canada Spreading code acquisition for direct sequence spread spectrum signals
KR101606598B1 (ko) 2009-09-30 2016-03-25 한국전자통신연구원 특이값 분해를 이용한 백색가우시안 잡음대역 결정 시스템 및 그 방법
CN101944930B (zh) * 2010-07-16 2013-11-13 北京交通大学 一种能量检测的方法和装置
US9143190B2 (en) * 2013-03-11 2015-09-22 Freescale Semiconductor,Inc System and method for demodulating an incoming signal
FR3045167B1 (fr) * 2015-12-11 2018-01-26 Thales Procedes et dispositifs de validation de synchronisation entre un recepteur de geolocalisation et un satellite emetteur
KR101811221B1 (ko) * 2016-02-17 2017-12-21 주식회사 이노와이어리스 신호 분석기의 ｗｃｄｍａ 신호 타이밍 오프셋 처리 방법
KR101779584B1 (ko) * 2016-04-29 2017-09-18 경희대학교 산학협력단 복잡도 감소에 기반한 ds-cdma 시스템에서의 원신호 복원 방법
CN106230468A (zh) * 2016-09-13 2016-12-14 成都创慧科达科技有限公司 一种基于超宽带技术的无线传感器网络系统
US10735046B1 (en) 2019-10-10 2020-08-04 United States Government As Represented By The Secretary Of The Navy Method of spread code acquisition using phase multiplexed shuffled correlation and concurrent two parameter alignment screening
KR102614178B1 (ko) 2020-11-04 2023-12-15 한국전자통신연구원 무선 통신 시스템에서의 무선 신호 수신 방법 및 장치

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Also Published As

Publication number Publication date
EP0945994B1 (de) 2004-09-08
HK1023006A1 (en) 2000-08-25
JP4253066B2 (ja) 2009-04-08
KR19990078150A (ko) 1999-10-25
EP0945994A2 (de) 1999-09-29
EP1447917A1 (de) 2004-08-18
DE69919924T2 (de) 2005-09-22
CN1134924C (zh) 2004-01-14
EP0945994A3 (de) 2002-01-16
JPH11313382A (ja) 1999-11-09
US6363049B1 (en) 2002-03-26
CN1241857A (zh) 2000-01-19
KR100473679B1 (ko) 2005-03-07

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