DE60006797D1 - Anordnung und verfahren zur ausführung einer zeitschlitzsyncronisation in einem breitband-cdma system in anwesenheit bedeutender anfangsfrequenzfehler - Google Patents

Anordnung und verfahren zur ausführung einer zeitschlitzsyncronisation in einem breitband-cdma system in anwesenheit bedeutender anfangsfrequenzfehler

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Publication number
DE60006797D1
DE60006797D1 DE60006797T DE60006797T DE60006797D1 DE 60006797 D1 DE60006797 D1 DE 60006797D1 DE 60006797 T DE60006797 T DE 60006797T DE 60006797 T DE60006797 T DE 60006797T DE 60006797 D1 DE60006797 D1 DE 60006797D1
Authority
DE
Germany
Prior art keywords
time slot
initial frequency
wideband cdma
cdma system
frequency errors
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
DE60006797T
Other languages
English (en)
Other versions
DE60006797T2 (de
Inventor
Eric Wang
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.)
Ericsson Inc
Original Assignee
Ericsson 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 Ericsson Inc filed Critical Ericsson Inc
Publication of DE60006797D1 publication Critical patent/DE60006797D1/de
Application granted granted Critical
Publication of DE60006797T2 publication Critical patent/DE60006797T2/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
    • 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
DE60006797T 1999-04-19 2000-03-28 Anordnung und verfahren zur ausführung einer zeitschlitzsyncronisation in einem breitband-cdma system in anwesenheit bedeutender anfangsfrequenzfehler Expired - Lifetime DE60006797T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US294644 1999-04-19
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
PCT/US2000/008187 WO2000064066A1 (en) 1999-04-19 2000-03-28 System and method for achieving slot synchronization in a wideband cdma system in the presence of large initial frequency errors

Publications (2)

Publication Number Publication Date
DE60006797D1 true DE60006797D1 (de) 2004-01-08
DE60006797T2 DE60006797T2 (de) 2004-09-30

Family

ID=23134315

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60006797T Expired - Lifetime DE60006797T2 (de) 1999-04-19 2000-03-28 Anordnung und verfahren zur ausführung einer zeitschlitzsyncronisation in einem breitband-cdma system in anwesenheit bedeutender anfangsfrequenzfehler

Country Status (12)

Country Link
US (1) US6404758B1 (de)
EP (1) EP1173933B1 (de)
JP (1) JP2002542709A (de)
CN (1) CN1210877C (de)
AT (1) ATE255299T1 (de)
AU (1) AU4037400A (de)
DE (1) DE60006797T2 (de)
HK (1) HK1046072B (de)
IL (2) IL146036A0 (de)
MY (1) MY119703A (de)
TR (1) TR200103034T2 (de)
WO (1) WO2000064066A1 (de)

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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
US6370371B1 (en) 1998-10-21 2002-04-09 Parkervision, Inc. Applications of universal frequency translation
US7039372B1 (en) 1998-10-21 2006-05-02 Parkervision, Inc. Method and system for frequency up-conversion with modulation embodiments
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
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
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
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
US7460584B2 (en) 2002-07-18 2008-12-02 Parkervision, Inc. Networking methods and systems
US7379883B2 (en) 2002-07-18 2008-05-27 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
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Also Published As

Publication number Publication date
IL146036A0 (en) 2002-07-25
HK1046072B (zh) 2006-03-03
CN1347596A (zh) 2002-05-01
EP1173933B1 (de) 2003-11-26
JP2002542709A (ja) 2002-12-10
ATE255299T1 (de) 2003-12-15
MY119703A (en) 2005-06-30
CN1210877C (zh) 2005-07-13
WO2000064066A1 (en) 2000-10-26
TR200103034T2 (tr) 2002-05-21
EP1173933A1 (de) 2002-01-23
US6404758B1 (en) 2002-06-11
IL146036A (en) 2006-08-01
DE60006797T2 (de) 2004-09-30
HK1046072A1 (en) 2002-12-20
AU4037400A (en) 2000-11-02

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Legal Events

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8327 Change in the person/name/address of the patent owner

Owner name: ERICSSON INC., PLANO, TEX., US

8364 No opposition during term of opposition