KR100687700B1 - 동기검출 장치 및 방법 - Google Patents
동기검출 장치 및 방법 Download PDFInfo
- 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
- Authority
- KR
- South Korea
- Prior art keywords
- code
- correlation
- correlation value
- timing
- value
- Prior art date
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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
-
- 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
- H04B1/709—Correlator structure
- H04B1/7093—Matched filter type
-
- 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
- H04B1/7083—Cell search, e.g. using a three-step approach
-
- 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
- H04B2201/70707—Efficiency-related aspects
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 |
Family
ID=13385246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019990009006A KR100687700B1 (ko) | 1998-03-18 | 1999-03-17 | 동기검출 장치 및 방법 |
Country Status (6)
Families Citing this family (45)
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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)
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)
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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 |
-
1998
- 1998-03-18 JP JP06883898A patent/JP3856261B2/ja not_active Expired - Fee Related
-
1999
- 1999-03-16 US US09/270,112 patent/US6385232B1/en not_active Expired - Fee Related
- 1999-03-17 KR KR1019990009006A patent/KR100687700B1/ko not_active IP Right Cessation
- 1999-03-18 DE DE1999637760 patent/DE69937760T2/de not_active Expired - Fee Related
- 1999-03-18 EP EP19990302091 patent/EP0944178B1/en not_active Expired - Lifetime
- 1999-03-18 EP EP20040030378 patent/EP1564900B1/en not_active Expired - Lifetime
- 1999-03-18 DE DE1999625188 patent/DE69925188T2/de not_active Expired - Fee Related
- 1999-03-18 CN CNB991080203A patent/CN1284393C/zh not_active Expired - Fee Related
Patent Citations (2)
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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