CN1210877C - 用于改进时隙同步的系统和方法 - Google Patents
用于改进时隙同步的系统和方法 Download PDFInfo
- Publication number
- CN1210877C CN1210877C CNB008060533A CN00806053A CN1210877C CN 1210877 C CN1210877 C CN 1210877C CN B008060533 A CNB008060533 A CN B008060533A CN 00806053 A CN00806053 A CN 00806053A CN 1210877 C CN1210877 C CN 1210877C
- Authority
- CN
- China
- Prior art keywords
- signal
- matched filter
- received signal
- window
- circuit
- 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
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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
-
- 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
- H04B1/709—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
- H04B1/7097—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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Mobile Radio Communication Systems (AREA)
- Time-Division Multiplex Systems (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
- Color Television Systems (AREA)
- Burglar Alarm Systems (AREA)
Abstract
Description
Claims (15)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/294,644 US6404758B1 (en) | 1999-04-19 | 1999-04-19 | System and method for achieving slot synchronization in a wideband CDMA system in the presence of large initial frequency errors |
US09/294,644 | 1999-04-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1347596A CN1347596A (zh) | 2002-05-01 |
CN1210877C true CN1210877C (zh) | 2005-07-13 |
Family
ID=23134315
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB008060533A Expired - Fee Related CN1210877C (zh) | 1999-04-19 | 2000-03-28 | 用于改进时隙同步的系统和方法 |
Country Status (12)
Country | Link |
---|---|
US (1) | US6404758B1 (zh) |
EP (1) | EP1173933B1 (zh) |
JP (1) | JP2002542709A (zh) |
CN (1) | CN1210877C (zh) |
AT (1) | ATE255299T1 (zh) |
AU (1) | AU4037400A (zh) |
DE (1) | DE60006797T2 (zh) |
HK (1) | HK1046072B (zh) |
IL (2) | IL146036A0 (zh) |
MY (1) | MY119703A (zh) |
TR (1) | TR200103034T2 (zh) |
WO (1) | WO2000064066A1 (zh) |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6061551A (en) | 1998-10-21 | 2000-05-09 | Parkervision, Inc. | Method and system for down-converting electromagnetic signals |
US7515896B1 (en) * | 1998-10-21 | 2009-04-07 | Parkervision, Inc. | Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships |
US6370371B1 (en) | 1998-10-21 | 2002-04-09 | Parkervision, Inc. | Applications of universal frequency translation |
US7236754B2 (en) | 1999-08-23 | 2007-06-26 | Parkervision, Inc. | Method and system for frequency up-conversion |
US7039372B1 (en) | 1998-10-21 | 2006-05-02 | Parkervision, Inc. | Method and system for frequency up-conversion with modulation embodiments |
US6813485B2 (en) * | 1998-10-21 | 2004-11-02 | Parkervision, Inc. | Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same |
US6879817B1 (en) | 1999-04-16 | 2005-04-12 | Parkervision, Inc. | DC offset, re-radiation, and I/Q solutions using universal frequency translation technology |
US6853690B1 (en) | 1999-04-16 | 2005-02-08 | Parkervision, Inc. | Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments |
US6359925B1 (en) * | 1999-03-09 | 2002-03-19 | Linex Technologies, Inc. | Relative-signal-level data detection from a spread-spectrum signal using matched-filter obtained side information |
US7693230B2 (en) | 1999-04-16 | 2010-04-06 | Parkervision, Inc. | Apparatus and method of differential IQ frequency up-conversion |
US7065162B1 (en) | 1999-04-16 | 2006-06-20 | Parkervision, Inc. | Method and system for down-converting an electromagnetic signal, and transforms for same |
US7110444B1 (en) | 1999-08-04 | 2006-09-19 | Parkervision, Inc. | Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations |
US6363060B1 (en) * | 1999-06-30 | 2002-03-26 | Qualcomm Incorporated | Method and apparatus for fast WCDMA acquisition |
DE19933542A1 (de) * | 1999-07-16 | 2001-01-25 | Siemens Ag | Verfahren und Vorrichtung zur Synchronisation von Mobilfunkempfängern in einem Mobilfunksystem |
US8295406B1 (en) | 1999-08-04 | 2012-10-23 | Parkervision, Inc. | Universal platform module for a plurality of communication protocols |
KR20010028099A (ko) * | 1999-09-17 | 2001-04-06 | 박종섭 | 코드 분할 다중 접속방식을 이용한 수신기에서의 동기 추적장치 및 그 방법 |
US6665288B1 (en) * | 1999-11-08 | 2003-12-16 | Ericsson Inc. | Method and apparatus for reducing synchronization code interference in CDMA communications systems |
US7010286B2 (en) | 2000-04-14 | 2006-03-07 | Parkervision, Inc. | Apparatus, system, and method for down-converting and up-converting electromagnetic signals |
US6721295B1 (en) * | 2000-08-25 | 2004-04-13 | Texas Instruments Incorporated | Triple data system for high data rate communication systems |
FI20001912A (fi) * | 2000-08-30 | 2002-03-01 | Nokia Networks Oy | Menetelmä sekä vastaanotin |
US7454453B2 (en) | 2000-11-14 | 2008-11-18 | Parkervision, Inc. | Methods, systems, and computer program products for parallel correlation and applications thereof |
US7010559B2 (en) * | 2000-11-14 | 2006-03-07 | Parkervision, Inc. | Method and apparatus for a parallel correlator and applications thereof |
GB2369531B (en) * | 2000-11-27 | 2004-06-16 | Ericsson Telefon Ab L M | Mobile communications device |
WO2002043264A2 (en) * | 2000-11-27 | 2002-05-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Code synchronization in a mobile communication device |
US7068984B2 (en) * | 2001-06-15 | 2006-06-27 | Telefonaktiebolaget Lm Ericsson (Publ) | Systems and methods for amplification of a communication signal |
US7072427B2 (en) | 2001-11-09 | 2006-07-04 | Parkervision, Inc. | Method and apparatus for reducing DC offsets in a communication system |
GB2382478A (en) * | 2001-11-26 | 2003-05-28 | Ubinetics Ltd | Determining the approximate frequency error of an oscillator |
US7321640B2 (en) * | 2002-06-07 | 2008-01-22 | Parkervision, Inc. | Active polyphase inverter filter for quadrature signal generation |
US7379883B2 (en) | 2002-07-18 | 2008-05-27 | Parkervision, Inc. | Networking methods and systems |
US7460584B2 (en) | 2002-07-18 | 2008-12-02 | Parkervision, Inc. | Networking methods and systems |
US7499473B2 (en) * | 2002-09-09 | 2009-03-03 | Infineon Technologies Ag | Method and device for synchronizing a mobile radio receiver |
JP4347680B2 (ja) * | 2003-12-19 | 2009-10-21 | パナソニック株式会社 | エネルギー拡散回路、パケット番号算出回路、及び受信装置 |
US7453920B2 (en) * | 2004-03-09 | 2008-11-18 | Atc Technologies, Llc | Code synchronization in CDMA satellite wireless communications system using uplink channel detection |
US7312700B2 (en) * | 2005-01-26 | 2007-12-25 | Broadcom Corporation | GPS enabled cell phone with common interest alerts |
US20070038560A1 (en) * | 2005-08-12 | 2007-02-15 | Carl Ansley | Transaction payment system and processing |
US8311485B2 (en) * | 2010-01-13 | 2012-11-13 | Sensormatic Electronics, LLC | Method and system for receiver nulling using coherent transmit signals |
CN111245543B (zh) * | 2018-11-29 | 2022-06-03 | 鹤壁天海电子信息系统有限公司 | 一种空口数据同步头搜索方法及装置 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5793796A (en) * | 1993-06-02 | 1998-08-11 | Roke Manor Research Limited | Apparatus for use in equipment providing a digital radio link between a fixed and a mobile radio unit |
JPH0787075A (ja) * | 1993-06-30 | 1995-03-31 | Nippon Motorola Ltd | デジタル無線通信の同期方法 |
US5377225A (en) * | 1993-10-19 | 1994-12-27 | Hughes Aircraft Company | Multiple-access noise rejection filter for a DS-CDMA system |
US5710768A (en) * | 1994-09-30 | 1998-01-20 | Qualcomm Incorporated | Method of searching for a bursty signal |
US5790588A (en) * | 1995-06-07 | 1998-08-04 | Ntt Mobile Communications Network, Inc. | Spread spectrum transmitter and receiver employing composite spreading codes |
ZA965340B (en) * | 1995-06-30 | 1997-01-27 | Interdigital Tech Corp | Code division multiple access (cdma) communication system |
JPH0982668A (ja) * | 1995-09-20 | 1997-03-28 | Sony Corp | 研磨用スラリー及びこの研磨用スラリーを用いる研磨方法 |
KR100205301B1 (ko) * | 1995-12-26 | 1999-07-01 | 구본준 | 금속배선구조 및 형성방법 |
US6028887A (en) * | 1996-07-12 | 2000-02-22 | General Electric Company | Power efficient receiver |
US5799070A (en) * | 1997-03-04 | 1998-08-25 | Hewlett Packard Company | User friendly interface for a facsimile machine integrating programed dialing and monitor dialing |
US5867525A (en) * | 1997-06-10 | 1999-02-02 | L-3 Commuications Corporation | Synchronizer and method therefor and communications system incorporating same |
JPH1188118A (ja) * | 1997-09-03 | 1999-03-30 | Matsushita Electric Ind Co Ltd | マッチトフィルタ及びタイミング検出方法 |
US6078576A (en) * | 1998-02-04 | 2000-06-20 | Golden Bridge Technology, Inc. | High processing gain CDMA/TDMA system and method |
-
1999
- 1999-04-19 US US09/294,644 patent/US6404758B1/en not_active Expired - Lifetime
-
2000
- 2000-03-28 IL IL14603600A patent/IL146036A0/xx active IP Right Grant
- 2000-03-28 TR TR2001/03034T patent/TR200103034T2/xx unknown
- 2000-03-28 AT AT00919737T patent/ATE255299T1/de not_active IP Right Cessation
- 2000-03-28 DE DE60006797T patent/DE60006797T2/de not_active Expired - Lifetime
- 2000-03-28 EP EP00919737A patent/EP1173933B1/en not_active Expired - Lifetime
- 2000-03-28 CN CNB008060533A patent/CN1210877C/zh not_active Expired - Fee Related
- 2000-03-28 JP JP2000613088A patent/JP2002542709A/ja active Pending
- 2000-03-28 AU AU40374/00A patent/AU4037400A/en not_active Abandoned
- 2000-03-28 WO PCT/US2000/008187 patent/WO2000064066A1/en active IP Right Grant
- 2000-04-08 MY MYPI20001479A patent/MY119703A/en unknown
-
2001
- 2001-10-18 IL IL146036A patent/IL146036A/en not_active IP Right Cessation
-
2002
- 2002-10-17 HK HK02107568.5A patent/HK1046072B/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
WO2000064066A1 (en) | 2000-10-26 |
IL146036A0 (en) | 2002-07-25 |
EP1173933B1 (en) | 2003-11-26 |
HK1046072B (zh) | 2006-03-03 |
HK1046072A1 (en) | 2002-12-20 |
AU4037400A (en) | 2000-11-02 |
MY119703A (en) | 2005-06-30 |
DE60006797D1 (de) | 2004-01-08 |
EP1173933A1 (en) | 2002-01-23 |
DE60006797T2 (de) | 2004-09-30 |
ATE255299T1 (de) | 2003-12-15 |
JP2002542709A (ja) | 2002-12-10 |
US6404758B1 (en) | 2002-06-11 |
IL146036A (en) | 2006-08-01 |
TR200103034T2 (tr) | 2002-05-21 |
CN1347596A (zh) | 2002-05-01 |
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Legal Events
Date | Code | Title | Description |
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: CLUSTER CO., LTD. Free format text: FORMER OWNER: ERICSSON CO. Effective date: 20150421 Owner name: OPTIS WIRELESS TECHNOLOGY LLC Free format text: FORMER OWNER: CLUSTER CO., LTD. Effective date: 20150421 |
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20150421 Address after: Texas, USA Patentee after: Telefonaktiebolaget LM Ericsson (publ) Address before: Delaware Patentee before: Clastres LLC Effective date of registration: 20150421 Address after: Delaware Patentee after: Clastres LLC Address before: North Carolina Patentee before: ERICSSON Inc. |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050713 Termination date: 20180328 |
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CF01 | Termination of patent right due to non-payment of annual fee |