KR100687700B1 - 동기검출 장치 및 방법 - Google Patents

동기검출 장치 및 방법 Download PDF

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Publication number
KR100687700B1
KR100687700B1 KR1019990009006A KR19990009006A KR100687700B1 KR 100687700 B1 KR100687700 B1 KR 100687700B1 KR 1019990009006 A KR1019990009006 A KR 1019990009006A KR 19990009006 A KR19990009006 A KR 19990009006A KR 100687700 B1 KR100687700 B1 KR 100687700B1
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KR
South Korea
Prior art keywords
code
correlation
correlation value
timing
value
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KR1019990009006A
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English (en)
Korean (ko)
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KR19990077981A (ko
Inventor
데라시마가즈히코
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소니 가부시끼 가이샤
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Publication of KR19990077981A publication Critical patent/KR19990077981A/ko
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7073Synchronisation aspects
    • H04B1/7075Synchronisation aspects with code phase acquisition
    • H04B1/7077Multi-step acquisition, e.g. multi-dwell, coarse-fine or validation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7073Synchronisation aspects
    • H04B1/7075Synchronisation aspects with code phase acquisition
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/709Correlator structure
    • H04B1/7093Matched filter type
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7073Synchronisation aspects
    • H04B1/7083Cell search, e.g. using a three-step approach
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B2201/00Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70707Efficiency-related aspects
KR1019990009006A 1998-03-18 1999-03-17 동기검출 장치 및 방법 KR100687700B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP98-068838 1998-03-18
JP06883898A JP3856261B2 (ja) 1998-03-18 1998-03-18 同期検出装置

Publications (2)

Publication Number Publication Date
KR19990077981A KR19990077981A (ko) 1999-10-25
KR100687700B1 true KR100687700B1 (ko) 2007-02-27

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Application Number Title Priority Date Filing Date
KR1019990009006A KR100687700B1 (ko) 1998-03-18 1999-03-17 동기검출 장치 및 방법

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US (1) US6385232B1 (US06385232-20020507-M00002.png)
EP (2) EP0944178B1 (US06385232-20020507-M00002.png)
JP (1) JP3856261B2 (US06385232-20020507-M00002.png)
KR (1) KR100687700B1 (US06385232-20020507-M00002.png)
CN (1) CN1284393C (US06385232-20020507-M00002.png)
DE (2) DE69937760T2 (US06385232-20020507-M00002.png)

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6879575B1 (en) 1998-05-13 2005-04-12 Hitachi, Ltd. Code division multiple access mobile communication system
ES2228120T3 (es) * 1998-09-08 2005-04-01 Siemens Aktiengesellschaft Procedimiento para establecer o detectar una secuencia de señales, una unidad de transmision y una unidad de recepcion.
JP3964998B2 (ja) * 1999-01-14 2007-08-22 株式会社日立国際電気 移動局の受信機
JP3323453B2 (ja) * 1999-02-09 2002-09-09 松下電器産業株式会社 Cdma受信装置及びcdma受信方法
JP3367475B2 (ja) * 1999-07-06 2003-01-14 日本電気株式会社 無線通信機および無線通信機の消費電力制御方法
KR100429545B1 (ko) * 1999-08-17 2004-04-28 삼성전자주식회사 이동통신 시스템의 스크램블링 부호의 식별자 통신방법
JP2001061176A (ja) * 1999-08-20 2001-03-06 Pioneer Electronic Corp 通信装置
KR20010035967A (ko) * 1999-10-05 2001-05-07 서평원 코드분할다중접속 시스템의 다중 사용자 신호 동기 획득 장치 및 그 방법
FI114887B (fi) * 1999-10-13 2005-01-14 U Nav Microelectronics Corp Hajaspektrivastaanottimen signaalinhakujärjestelmä
FI119011B (fi) 1999-10-13 2008-06-13 U Nav Microelectronics Corp Sovitettu suodatin ja hajaspektrivastaanotin
FI111579B (fi) 1999-10-13 2003-08-15 U Nav Microelectronics Corp Hajaspektrivastaanotin
FI111578B (fi) 1999-10-13 2003-08-15 U Nav Microelectronics Corp Korrelaattori
JP3439399B2 (ja) * 1999-10-14 2003-08-25 エヌイーシーマイクロシステム株式会社 Cdmaベースバンド受信装置
US6873649B1 (en) * 1999-11-12 2005-03-29 Itt Manufacturing Enterprises, Inc. Method and apparatus for detecting a stationary dither code
US6324210B1 (en) * 1999-12-17 2001-11-27 Golden Bridge Technology Incorporated Sliding matched filter with flexible hardware complexity
GB2369189C (en) * 2000-02-18 2008-06-24 Sensei Ltd Method of measuring the battery level in a mobile telephone
JP3808280B2 (ja) 2000-04-28 2006-08-09 富士通株式会社 同期確立装置と同期確立方法及び受信機
JP3473695B2 (ja) * 2000-08-30 2003-12-08 Necエレクトロニクス株式会社 W−cdmaシステムにおけるセルサーチ方法及び回路
SG151071A1 (en) * 2000-11-06 2009-04-30 Ntt Docomo Inc Mobile communication system in multi-carrier cdma scheme using short code and long code
CA2361247C (en) * 2000-11-06 2008-10-07 Ntt Docomo, Inc. Transmitter, transmitting method, receiver, and receiving method for mc-cdma communication system
AU2002217057A1 (en) * 2000-11-27 2002-06-03 Telefonaktiebolaget Lm Ericsson (Publ) Code synchronization in a mobile communication device
US7085313B2 (en) * 2001-02-17 2006-08-01 Koninklijke Philips Electronics N.V. Multiple channel joint decoding at mobile handset
JP2002247119A (ja) * 2001-02-20 2002-08-30 Advantest Corp シンボル点推定装置、方法、プログラム、および該プログラムを記録した記録媒体ならびに変調解析装置
US6535548B1 (en) * 2001-04-26 2003-03-18 Motorola, Inc. Mobile wireless communication devices for receiving spread spectrum signals and methods therefor
US7130331B2 (en) * 2001-06-01 2006-10-31 Qualcomm Incorporated Method and apparatus for searching time-division multiplexed synchronization sequences
JP3394530B2 (ja) 2001-08-07 2003-04-07 松下電器産業株式会社 セルサーチ装置およびセルサーチ方法
DE10142102A1 (de) 2001-08-30 2003-03-27 Schleifring Und Appbau Gmbh Vorrichtung zur störarmen Signalübertragung
JP2003188767A (ja) * 2001-12-13 2003-07-04 Oki Electric Ind Co Ltd 同期捕捉回路
US7050485B2 (en) * 2002-05-07 2006-05-23 Koninklijke Philips Electronics N.V. Iterative CDMA phase and frequency acquisition
US7292624B2 (en) * 2002-08-27 2007-11-06 Itt Manufacturing, Inc. Method and apparatus for robust acquisition of spread spectrum signals
EP1427116B1 (en) * 2002-12-04 2018-03-28 Nippon Telegraph And Telephone Corporation Spread-spectrum demodulator
CA2433139C (en) * 2003-06-23 2012-03-27 Wavesat Wireless Inc. Synchronizing method and apparatus
KR100556862B1 (ko) * 2003-06-24 2006-03-10 엘지전자 주식회사 이동 통신단말기의 주파수 자동 조절 장치
KR101101388B1 (ko) * 2003-09-03 2012-01-02 코닌클리즈케 필립스 일렉트로닉스 엔.브이. 직접 시퀀스 확산 스펙트럼 신호 수신 방법, 무선 시스템및 수신기
US7876738B2 (en) * 2004-03-02 2011-01-25 Nokia Corporation Preventing an incorrect synchronization between a received code-modulated signal and a replica code
US7362840B2 (en) * 2004-11-18 2008-04-22 Freescale Semiconductor Inc. Circuit and method for adjusting timing alignment using programmable codes
CN101043506B (zh) * 2006-03-20 2010-07-14 中兴通讯股份有限公司 一种自动判断接入业务类型的方法
JP4814698B2 (ja) * 2006-06-14 2011-11-16 Okiセミコンダクタ株式会社 スペクトラム拡散受信機およびその方法
US8090007B1 (en) * 2006-09-26 2012-01-03 Rockwell Collins, Inc. Position-based modulation system and method
WO2010079572A1 (ja) * 2009-01-06 2010-07-15 パナソニック株式会社 追記型情報記録媒体、情報記録装置、情報記録方法、情報再生装置および情報再生方法
WO2010079578A1 (ja) * 2009-01-07 2010-07-15 パナソニック株式会社 追記型情報記録媒体、情報記録装置、情報記録方法、情報再生装置および情報再生方法
US8599903B2 (en) * 2010-08-27 2013-12-03 Collision Communications, Inc. QR-RLS adaptive digital filter with 18-bit pipeline architecture
CN106464559B (zh) * 2014-05-26 2023-05-23 康西欧控股有限公司 用于分布式控制系统的高速嵌入式协议
JP6375250B2 (ja) * 2015-03-03 2018-08-15 パナソニック株式会社 レーダ装置
CN109792376B (zh) * 2017-02-14 2021-06-01 华为技术有限公司 一种时钟同步方法及设备

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0668663A1 (en) * 1993-09-06 1995-08-23 Ntt Mobile Communications Network Inc. Sliding correlation detector
EP0825737A1 (en) * 1996-03-05 1998-02-25 Ntt Mobile Communications Network Inc. Signal transmitting method, transmitter, receiver, and spread-spectrum code synchronizing method for mobile communication system

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62190940A (ja) * 1986-02-17 1987-08-21 Nec Corp スペクトラム拡散通信方式
JP3003839B2 (ja) * 1993-11-08 2000-01-31 エヌ・ティ・ティ移動通信網株式会社 Cdma通信方法および装置
US5530716A (en) * 1994-06-30 1996-06-25 Motorola, Inc. Method and apparatus for identifying a coded communication signal
DE69533839T2 (de) * 1994-12-28 2006-03-02 Ntt Docomo Inc. Verfahren und anordnung zur vorsysnchronisierung eines spreizspektrumkode eines übertragungssystems mit mehrfachzugriff durch kodeverteilung
US5627855A (en) * 1995-05-25 1997-05-06 Golden Bridge Technology, Inc. Programmable two-part matched filter for spread spectrum
US5790588A (en) * 1995-06-07 1998-08-04 Ntt Mobile Communications Network, Inc. Spread spectrum transmitter and receiver employing composite spreading codes
JPH09298490A (ja) * 1996-04-30 1997-11-18 Yozan:Kk スペクトル拡散通信方式
US6151353A (en) * 1996-07-12 2000-11-21 General Electric Company Pre-acquisition frequency offset removal in a GPS receiver
JP3376224B2 (ja) * 1996-10-23 2003-02-10 株式会社エヌ・ティ・ティ・ドコモ Ds−cdma基地局間非同期セルラ方式における初期同期方法および受信機
JP3373746B2 (ja) * 1997-01-07 2003-02-04 株式会社鷹山 Ds−cdma基地局間非同期セルラ方式における初期同期方法および受信機
US6205168B1 (en) * 1998-11-12 2001-03-20 Sharp Laboratories Of America, Inc. Sequential detection system and method with adaptive bias

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0668663A1 (en) * 1993-09-06 1995-08-23 Ntt Mobile Communications Network Inc. Sliding correlation detector
EP0825737A1 (en) * 1996-03-05 1998-02-25 Ntt Mobile Communications Network Inc. Signal transmitting method, transmitter, receiver, and spread-spectrum code synchronizing method for mobile communication system

Also Published As

Publication number Publication date
DE69925188D1 (de) 2005-06-16
EP0944178A2 (en) 1999-09-22
DE69937760D1 (de) 2008-01-24
CN1284393C (zh) 2006-11-08
JP3856261B2 (ja) 2006-12-13
EP1564900A1 (en) 2005-08-17
EP0944178A3 (en) 2003-04-02
US6385232B1 (en) 2002-05-07
JPH11266181A (ja) 1999-09-28
EP1564900B1 (en) 2007-12-12
DE69937760T2 (de) 2008-12-04
KR19990077981A (ko) 1999-10-25
CN1236280A (zh) 1999-11-24
DE69925188T2 (de) 2006-03-02
EP0944178B1 (en) 2005-05-11

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