ATE416516T1 - Vorrichtung und verfahren zum suchen nach bekannten sequenzen - Google Patents

Vorrichtung und verfahren zum suchen nach bekannten sequenzen

Info

Publication number
ATE416516T1
ATE416516T1 AT03709368T AT03709368T ATE416516T1 AT E416516 T1 ATE416516 T1 AT E416516T1 AT 03709368 T AT03709368 T AT 03709368T AT 03709368 T AT03709368 T AT 03709368T AT E416516 T1 ATE416516 T1 AT E416516T1
Authority
AT
Austria
Prior art keywords
conventional techniques
searching
over
known sequences
fir
Prior art date
Application number
AT03709368T
Other languages
English (en)
Inventor
Jan Meyer
Peter Bohnhoff
John Kaewell
Alexander Reznik
Original Assignee
Interdigital Tech 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 Tech Corp filed Critical Interdigital Tech Corp
Application granted granted Critical
Publication of ATE416516T1 publication Critical patent/ATE416516T1/de

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)
  • Automatic Analysis And Handling Materials Therefor (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Socks And Pantyhose (AREA)
  • Knitting Machines (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
AT03709368T 2002-02-28 2003-02-26 Vorrichtung und verfahren zum suchen nach bekannten sequenzen ATE416516T1 (de)

Applications Claiming Priority (2)

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

Publications (1)

Publication Number Publication Date
ATE416516T1 true ATE416516T1 (de) 2008-12-15

Family

ID=27760313

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03709368T ATE416516T1 (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) EP2031762A1 (de)
JP (1) JP3959064B2 (de)
KR (2) KR100677684B1 (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) TWI300296B (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
EP2843869A1 (de) 2006-06-09 2015-03-04 TQ Lambda LLC Verfahren zur Übertragung von Daten in einem mobilen Kommunikationssystem
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
US10433344B2 (en) * 2015-05-22 2019-10-01 Lg Electronics Inc. Method for performing random access in wireless communication system using mmWave band

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4777612A (en) * 1983-10-05 1988-10-11 Nec Corporation Digital signal processing apparatus having a digital 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
US6181733B1 (en) 1997-07-30 2001-01-30 Matsushita Electric Industrial Co., Ltd. Digital matched filter
TW448669B (en) 1997-10-08 2001-08-01 Tropian Inc Method and apparatus of determing the phase of a first clock signal using a second clock signal and method and circuit of producing a data stream indicative of the phase of one clock signal using another clock signal
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
GB2362075B (en) 2000-05-03 2003-12-17 Siemens Ag Detection apparatus and method therefor
US6810072B1 (en) * 2000-05-30 2004-10-26 Nokia Corporation System for acquiring spread spectrum signals
FI109383B (fi) 2000-11-03 2002-07-15 Nokia Corp Suodatusmenetelmä ja suodatin
DE60124595T2 (de) * 2001-03-13 2007-09-13 Stmicroelectronics Asia Pacific Pte Ltd. Hochleistungszeitschlitzsyncronisation für die anfangszellensuche eines w-cdma systems mit reduziertem 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
US20040240592A1 (en) 2004-12-02
US6792037B2 (en) 2004-09-14
DE60325027D1 (de) 2009-01-15
KR20040087324A (ko) 2004-10-13
TWI300296B (en) 2008-08-21
JP2005519526A (ja) 2005-06-30
KR100881653B1 (ko) 2009-02-06
EP1483859B1 (de) 2008-12-03
CN1640042A (zh) 2005-07-13
TW200417165A (en) 2004-09-01
WO2003075497A1 (en) 2003-09-12
EP2031762A1 (de) 2009-03-04
TWI299948B (en) 2008-08-11
AU2003212428A1 (en) 2003-09-16
JP3959064B2 (ja) 2007-08-15
MXPA04008332A (es) 2004-11-26
NO20044077L (no) 2004-11-23
TW200709582A (en) 2007-03-01
TW595173B (en) 2004-06-21
EP1483859A1 (de) 2004-12-08
KR100677684B1 (ko) 2007-02-02
CN100426711C (zh) 2008-10-15
EP1483859A4 (de) 2005-06-01
TW200304306A (en) 2003-09-16
CA2477233A1 (en) 2003-09-12
US7706435B2 (en) 2010-04-27
US20030161416A1 (en) 2003-08-28
EP1483859B8 (de) 2009-02-25
KR20050096980A (ko) 2005-10-06

Similar Documents

Publication Publication Date Title
ATE416516T1 (de) Vorrichtung und verfahren zum suchen nach bekannten sequenzen
CA2478539A1 (en) A method and device for estimating transmitted signals in a receiver in digital signal transmission operations
GB2394390B (en) Arrangement and method for RF filter
DE60135228D1 (de) Verfahren und gerät zum behandeln eines modulierten signals unter verwendung eines entzerrers und eines rake-empfängers
DE60233581D1 (de) Verfahren und vorrichtung zum variieren der länge eines adaptiven entzerrers auf der basis der dopplerfrequenz
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
WO2004073864A3 (en) Devices for component removal during blood collection, and uses thereof
CA2222890A1 (fr) Methode de transmission de donnees sismiques compressees
WO2008137650A3 (en) Altering training time or step size of an equalizer as function of channel conditions
EP1416629A3 (de) Verfahren und System zur Rauschreduzierung in einem Mehrträgersignal
TWI267264B (en) Method and apparatus for interference signal code power and noise variance estimation
DE60032536D1 (de) Verfahren zur Taktsynchronisierung eines digitalen Signals
CA2133236A1 (en) Method and Apparatus for Channel Equalization
MY125743A (en) Method of tracking time intervals for a communication signal
DE69106503D1 (de) Entzerrungsmethode in einem empfänger für einen übertragungskanal durchlaufende signale.
WO2000002315A3 (de) Verfahren zur digitalen taktrückgewinnung und selektiven filterung
ATE342621T1 (de) Gemeinsame taktrückgewinnung und entzerrung für ein system von n antennen
ATE389969T1 (de) Filter zur eliminierung der überschwingungen
ATE270482T1 (de) Schätzung der kanalimpulsantwort mittels der streuung vom empfangenen signal
DE60210686D1 (de) Schätzung der Kanalparameter mittels Maximalwahrscheinlichkeitsschätzung
EP0895383A3 (de) Kanalimpulsantwortschätzer für einen Viterbi-Equaliser
ATE472866T1 (de) Verfahren und vorrichtung zur störsignalcodeleistungs- und rauschvarianz schätzung
ATE474407T1 (de) Verbundene raum-zeit-optimalfilter (jstof) zur störungslöschung
EP1303093A3 (de) Verkürzung der Impulsantwort

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties