DE60325027D1 - Vorrichtung und verfahren zum suchen nach bekannten sequenzen - Google Patents

Vorrichtung und verfahren zum suchen nach bekannten sequenzen

Info

Publication number
DE60325027D1
DE60325027D1 DE60325027T DE60325027T DE60325027D1 DE 60325027 D1 DE60325027 D1 DE 60325027D1 DE 60325027 T DE60325027 T DE 60325027T DE 60325027 T DE60325027 T DE 60325027T DE 60325027 D1 DE60325027 D1 DE 60325027D1
Authority
DE
Germany
Prior art keywords
conventional techniques
searching
over
known sequences
fir
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
DE60325027T
Other languages
English (en)
Inventor
Jan Meyer
Peter Bohnhoff
John David Kaewell
Alexander Reznik
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.)
InterDigital Technology Corp
Original Assignee
InterDigital Technology Corp
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 InterDigital Technology Corp filed Critical InterDigital Technology Corp
Application granted granted Critical
Publication of DE60325027D1 publication Critical patent/DE60325027D1/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
    • 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
    • H04B1/70758—Multimode search, i.e. using multiple search strategies
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • 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
    • H04B1/7117—Selection, re-selection, allocation or re-allocation of paths to fingers, e.g. timing offset control of allocated fingers
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Socks And Pantyhose (AREA)
  • Knitting Machines (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
DE60325027T 2002-02-28 2003-02-26 Vorrichtung und verfahren zum suchen nach bekannten sequenzen Expired - Lifetime DE60325027D1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US36082202P 2002-02-28 2002-02-28
US10/322,184 US6792037B2 (en) 2002-02-28 2002-12-18 Apparatus and method of searching for known sequences
PCT/US2003/005913 WO2003075497A1 (en) 2002-02-28 2003-02-26 Apparatus and method of searching for known sequences

Publications (1)

Publication Number Publication Date
DE60325027D1 true DE60325027D1 (de) 2009-01-15

Family

ID=27760313

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60325027T Expired - Lifetime DE60325027D1 (de) 2002-02-28 2003-02-26 Vorrichtung und verfahren zum suchen nach bekannten sequenzen

Country Status (13)

Country Link
US (2) US6792037B2 (de)
EP (2) EP1483859B8 (de)
JP (1) JP3959064B2 (de)
KR (2) KR100881653B1 (de)
CN (1) CN100426711C (de)
AT (1) ATE416516T1 (de)
AU (1) AU2003212428A1 (de)
CA (1) CA2477233A1 (de)
DE (1) DE60325027D1 (de)
MX (1) MXPA04008332A (de)
NO (1) NO20044077L (de)
TW (3) TW595173B (de)
WO (1) WO2003075497A1 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3735056B2 (ja) * 2001-10-09 2006-01-11 株式会社日立国際電気 Ｃｄｍａ無線基地局
TW200522751A (en) 2003-03-05 2005-07-01 Interdigital Tech Corp Received communication signal processing methods and components for wireless communication equipment
US7218665B2 (en) * 2003-04-25 2007-05-15 Bae Systems Information And Electronic Systems Integration Inc. Deferred decorrelating decision-feedback detector for supersaturated communications
US7356074B2 (en) * 2003-05-08 2008-04-08 Rf Micro Devices, Inc. Estimation of multipath channel with sub-chip resolution
US7394801B2 (en) * 2003-06-17 2008-07-01 Qisda Corporation Cell search method suitable for initial cell search and target cell search
US7613228B2 (en) * 2005-08-10 2009-11-03 Bae Systems Information And Electronic Systems Integration Inc. M-Algorithm multiuser detector with correlation based pruning
US7450944B2 (en) * 2005-11-03 2008-11-11 Motorola, Inc. Method and apparatus for base station synchronization
US7479924B2 (en) * 2005-11-14 2009-01-20 Sirf Technology Holdings, Inc. False reacquisition mitigation in high sensitivity navigational satellite signal receivers
US8218481B2 (en) 2006-06-09 2012-07-10 Lg Electronics Inc. Method of transmitting data in a mobile communication system
KR101328921B1 (ko) * 2006-09-27 2013-11-14 엘지전자 주식회사 지연 기반 시퀀스 검색 방법, 장치 및 이를 이용한 신호송수신 방법 및 장치
US8064546B2 (en) * 2007-06-14 2011-11-22 Texas Instruments Incorporated Random access preamble detection for long term evolution wireless networks
KR101363385B1 (ko) * 2009-12-18 2014-02-14 한국전자통신연구원 위치추적 시스템의 수신기
US9489669B2 (en) 2010-12-27 2016-11-08 The Western Union Company Secure contactless payment systems and methods
US9201916B2 (en) * 2012-06-13 2015-12-01 Infosys Limited Method, system, and computer-readable medium for providing a scalable bio-informatics sequence search on cloud
US9014319B1 (en) * 2013-11-22 2015-04-21 Xilinx, Inc. Cancellation pulse crest factor reduction
WO2016190606A1 (ko) * 2015-05-22 2016-12-01 엘지전자 주식회사 Mmwave 대역을 이용하는 무선 통신 시스템에서의 랜덤 액세스 수행 방법

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0137464B1 (de) * 1983-10-05 1991-06-12 Nec Corporation Digitale Signalverarbeitungseinrichtung mit einem digitalen Filter
US5428647A (en) * 1992-12-07 1995-06-27 Motorola, Inc. Method and apparatus for synchronizing a received signal in a digital radio communication system
US5343496A (en) 1993-09-24 1994-08-30 Bell Communications Research, Inc. Interference suppression in CDMA systems
US5485215A (en) * 1994-05-19 1996-01-16 Matsushita Electric Corporation Of America HDTV raster converter and interpolation filter with section overlap
US5574747A (en) * 1995-01-04 1996-11-12 Interdigital Technology Corporation Spread spectrum adaptive power control system and method
JP2751959B2 (ja) 1996-07-15 1998-05-18 日本電気株式会社 Ｃｄｍａ受信装置の受信タイミング検出回路
US6049576A (en) * 1996-10-29 2000-04-11 Stanford Telecommunications, Inc. Kronecker product code acquisition system
WO1999006922A1 (fr) 1997-07-30 1999-02-11 Matsushita Electric Industrial Co., Ltd. Filtre numerique adapte
EP1021885B1 (de) 1997-10-08 2007-12-12 Matsushita Electric Industrial Co., Ltd. Digitaler phasendiskriminator basiert auf frequenzabtastung
JPH11239040A (ja) 1997-12-20 1999-08-31 Matsushita Electric Ind Co Ltd ディジタルフィルタおよび通信装置
US6370133B1 (en) 1998-07-10 2002-04-09 Hyundai Electronics America, Inc. CDMA receiver and method of operation
US6389069B1 (en) * 1998-12-14 2002-05-14 Qualcomm Incorporated Low power programmable digital filter
JP3816684B2 (ja) 1999-02-24 2006-08-30 三菱電機株式会社 スペクトル拡散受信装置
JP2001043236A (ja) 1999-07-30 2001-02-16 Matsushita Electric Ind Co Ltd 類似語抽出方法、文書検索方法及びこれらに用いる装置
EP1089452A1 (de) * 1999-09-28 2001-04-04 Lucent Technologies Inc. Taktfehlerschätzung bei schrittweisem Abtasten für breitbandiges CDMA
US6532250B1 (en) 1999-12-21 2003-03-11 Telefonaktiebolaget Lm Ericsson (Publ) Methods and apparatus for spreading and despreading information signals in code division multiple access communications systems
JP3407711B2 (ja) 2000-04-27 2003-05-19 日本電気株式会社 Ｄｓ−ｃｄｍａ方式の受信機におけるパスサーチ回路
US6810072B1 (en) * 2000-05-30 2004-10-26 Nokia Corporation System for acquiring spread spectrum signals
GB2362075B (en) 2000-05-03 2003-12-17 Siemens Ag Detection apparatus and method therefor
FI109383B (fi) 2000-11-03 2002-07-15 Nokia Corp Suodatusmenetelmä ja suodatin
WO2002073823A1 (en) * 2001-03-13 2002-09-19 Stmicroelectronics Asia Pacific Pte Ltd High performance w-cdma slot synchronisation for initial cell search with reduced hardware
US6463110B1 (en) * 2001-03-21 2002-10-08 Motorola, Inc. Timing synchronization in a communication device
US7027499B2 (en) 2001-06-20 2006-04-11 Agere Systems Inc. Detection and correction circuit for blind equalization convergence errors
US7106787B2 (en) * 2001-11-28 2006-09-12 Broadcom Corporation Acquisition matched filter for W-CDMA systems providing frequency offset robustness
US7116705B2 (en) * 2004-11-08 2006-10-03 Interdigital Technology Corporation Method and apparatus for reducing the processing rate of a chip-level equalization receiver

Also Published As

Publication number Publication date
JP3959064B2 (ja) 2007-08-15
KR100677684B1 (ko) 2007-02-02
MXPA04008332A (es) 2004-11-26
AU2003212428A1 (en) 2003-09-16
TW595173B (en) 2004-06-21
WO2003075497A1 (en) 2003-09-12
NO20044077L (no) 2004-11-23
TWI300296B (en) 2008-08-21
CN1640042A (zh) 2005-07-13
US20040240592A1 (en) 2004-12-02
TWI299948B (en) 2008-08-11
KR20040087324A (ko) 2004-10-13
KR20050096980A (ko) 2005-10-06
TW200709582A (en) 2007-03-01
EP1483859A1 (de) 2004-12-08
EP1483859A4 (de) 2005-06-01
US20030161416A1 (en) 2003-08-28
CA2477233A1 (en) 2003-09-12
ATE416516T1 (de) 2008-12-15
EP2031762A1 (de) 2009-03-04
EP1483859B1 (de) 2008-12-03
CN100426711C (zh) 2008-10-15
TW200304306A (en) 2003-09-16
EP1483859B8 (de) 2009-02-25
US7706435B2 (en) 2010-04-27
JP2005519526A (ja) 2005-06-30
TW200417165A (en) 2004-09-01
US6792037B2 (en) 2004-09-14
KR100881653B1 (ko) 2009-02-06

Similar Documents

Publication Publication Date Title
DE60325027D1 (de) Vorrichtung und verfahren zum suchen nach bekannten sequenzen
SE9302204L (sv) Sätt och anordning att vid digital signalöverföring estimera överförda symboler hos en mottagare
ATE460779T1 (de) Verfahren und vorrichtung zur interferenzunterdrückung bei drahtlosen empfängern
TWI268658B (en) Sampling rate conversion device and method, and audio device
DE60135228D1 (de) Verfahren und gerät zum behandeln eines modulierten signals unter verwendung eines entzerrers und eines rake-empfängers
ATE550843T1 (de) System und verfahren zur adaptiven datenwiedergewinnung
ATE471557T1 (de) Spektrum-codierungseinrichtung, spektrum- decodierungseinrichtung, übertragungseinrichtung für akustische signale, empfangseinrichtung für akustische signale und verfahren dafür
DE69807535D1 (de) Verfahren zur verbesserten schätzung der kanalimpulsantwort in tdma-systemen
DE10084900T1 (de) Empfänger und Verfahren zum Empfangen von Gleichkanalsignalen durch Kanaltrennung und sukzessives Auflösen
PL1745618T3 (pl) Przestawna transmisja pilota dla estymacji kanału i śledzenia czasu
FI922388A0 (fi) Maximisannolikhetssekvensestimation baserad pao ekvalisation hos en digital cellular mobilmottagare.
GB2394390B (en) Arrangement and method for RF filter
TW200618468A (en) Linear filter equalizer
ATE385112T1 (de) Verfahren und vorrichtung für kanalschäztung
DE69124413D1 (de) Adaptives System zur Schätzung der Kanalimpulsantwort durch Maximalwahrscheinlichkeitssequenzschätzung
ATE455399T1 (de) Verfahren und vorrichtung zum sampling von hf- signalen
DE59808380D1 (de) Verfahren zum kanalschätzen aus über einen funkkanal übertragenen empfangssignalen
DE69330454D1 (de) Kanalimpulsantwortschätzer für einen Viterbi-Equaliser
TW200631330A (en) Method and apparatus for interference signal code power and noise variance estimation
EP1480050A3 (de) Extrem genaue Oversampling-Methode und -Vorrichtung
ATE116773T1 (de) Entzerrungsmethode in einem empfänger für einen übertragungskanal durchlaufende signale.
ATE270482T1 (de) Schätzung der kanalimpulsantwort mittels der streuung vom empfangenen signal
HK1068749A1 (en) Method and apparatus for interference signal code power and noise variance estimation
DE60215344D1 (de) Gemeinsame taktrückgewinnung und entzerrung für ein system von n antennen
DE60044252D1 (de) Verfahren zur schätzung und/oder nachführung mit symbolabstand eines schwindenden funkkanals mit fraktionalem abstand

Legal Events

Date Code Title Description
8364 No opposition during term of opposition