IL161260A0 - Method and apparatus for acquiring pilots over code space and frequency errors in a cdma communication system - Google Patents

Method and apparatus for acquiring pilots over code space and frequency errors in a cdma communication system

Info

Publication number
IL161260A0
IL161260A0 IL16126002A IL16126002A IL161260A0 IL 161260 A0 IL161260 A0 IL 161260A0 IL 16126002 A IL16126002 A IL 16126002A IL 16126002 A IL16126002 A IL 16126002A IL 161260 A0 IL161260 A0 IL 161260A0
Authority
IL
Israel
Prior art keywords
acquiring
communication system
cdma communication
code space
frequency errors
Prior art date
Application number
IL16126002A
Other languages
English (en)
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of IL161260A0 publication Critical patent/IL161260A0/xx

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
    • H04B1/708—Parallel implementation
    • 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
    • H04B1/7087—Carrier 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
    • H04B1/70751—Synchronisation aspects with code phase acquisition using partial detection
    • H04B1/70753—Partial phase search
    • 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
    • H04B2201/70701—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception
    • 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)
  • Mobile Radio Communication Systems (AREA)
IL16126002A 2001-10-04 2002-10-02 Method and apparatus for acquiring pilots over code space and frequency errors in a cdma communication system IL161260A0 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/971,903 US7020180B2 (en) 2001-10-04 2001-10-04 Method and apparatus for acquiring pilots over code space and frequency errors in a CDMA communication system
PCT/US2002/031776 WO2003030391A2 (en) 2001-10-04 2002-10-02 Method and apparatus for acquiring pilots over code space and frequency errors in a cdma communication system

Publications (1)

Publication Number Publication Date
IL161260A0 true IL161260A0 (en) 2004-09-27

Family

ID=25518943

Family Applications (2)

Application Number Title Priority Date Filing Date
IL16126002A IL161260A0 (en) 2001-10-04 2002-10-02 Method and apparatus for acquiring pilots over code space and frequency errors in a cdma communication system
IL161260A IL161260A (en) 2001-10-04 2004-04-02 Method and apparatus for acquiring pilots over code space and frequency errors in a cdma communication system

Family Applications After (1)

Application Number Title Priority Date Filing Date
IL161260A IL161260A (en) 2001-10-04 2004-04-02 Method and apparatus for acquiring pilots over code space and frequency errors in a cdma communication system

Country Status (5)

Country Link
US (1) US7020180B2 (xx)
KR (1) KR100997620B1 (xx)
BR (1) BR0213089A (xx)
IL (2) IL161260A0 (xx)
WO (1) WO2003030391A2 (xx)

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US7106784B2 (en) * 2002-01-25 2006-09-12 Sasken Communication Technologies Limited Universal rake receiver
US6912244B2 (en) * 2002-01-31 2005-06-28 Qualcomm Inc. Pilot frequency acquisition based on a window of data samples
EP1515453B1 (de) * 2003-09-09 2013-04-24 u-blox AG Verfahren zur Detektion eines Spreizspektrumsignals
US7272165B2 (en) * 2003-11-26 2007-09-18 Intergrated System Solution Corp. Method and system for channel estimation in WLAN
US7463899B2 (en) * 2004-04-21 2008-12-09 Qualcomm Incorporated Methods and apparatus for detecting local maximums in a two-dimensional data set
AU2005202332A1 (en) * 2004-06-07 2005-12-22 Nec Australia Pty Ltd Method for decoding channelisation code set information in a spread spectrum receiver
US7630427B2 (en) * 2005-09-29 2009-12-08 Qualcomm Incorporated Systems, methods, and apparatus for establishing finger lock state
US7903719B2 (en) 2005-12-21 2011-03-08 Qualcomm Incorporated Optimal use of resources for signal processors
CN1992556B (zh) * 2005-12-27 2010-12-29 展讯通信（上海）有限公司 上行链路的同步方法及系统
KR100730819B1 (ko) * 2006-03-22 2007-06-20 에스케이 텔레콤주식회사 이동통신 단말기의 기지국 탐색 장치 및 방법
JP2009538012A (ja) * 2006-05-16 2009-10-29 アイメック ソフトウェア無線実装用ディジタル受信機
US20090135799A1 (en) * 2007-11-27 2009-05-28 Harris Corporation Wireless communications device including path searcher with common coherent correlator and related methods
US7990929B2 (en) * 2007-11-27 2011-08-02 Harris Corporation Wireless communications device including rake finger stage providing frequency correction and related methods
US8467365B1 (en) 2008-01-24 2013-06-18 Sprint Spectrum L.P. Method and system for defining search windows based on mobile station location
US8055273B1 (en) 2008-02-07 2011-11-08 Sprint Spectrum L.P. Method and system for defining a search window based on a mobile station's direction of motion and speed
US7733945B2 (en) * 2008-03-18 2010-06-08 On-Ramp Wireless, Inc. Spread spectrum with doppler optimization
US8477830B2 (en) 2008-03-18 2013-07-02 On-Ramp Wireless, Inc. Light monitoring system using a random phase multiple access system
US7782926B2 (en) * 2008-03-18 2010-08-24 On-Ramp Wireless, Inc. Random phase multiple access communication interface system and method
US20100195553A1 (en) * 2008-03-18 2010-08-05 Myers Theodore J Controlling power in a spread spectrum system
US7773664B2 (en) * 2008-03-18 2010-08-10 On-Ramp Wireless, Inc. Random phase multiple access system with meshing
US8520721B2 (en) 2008-03-18 2013-08-27 On-Ramp Wireless, Inc. RSSI measurement mechanism in the presence of pulsed jammers
US20090239550A1 (en) * 2008-03-18 2009-09-24 Myers Theodore J Random phase multiple access system with location tracking
US8958460B2 (en) 2008-03-18 2015-02-17 On-Ramp Wireless, Inc. Forward error correction media access control system
US8363699B2 (en) 2009-03-20 2013-01-29 On-Ramp Wireless, Inc. Random timing offset determination
JP5445126B2 (ja) * 2009-12-28 2014-03-19 富士通株式会社 移動端末及び通信制御方法
US8879605B1 (en) 2012-04-02 2014-11-04 Sprint Spectrum L.P. Mobile station time reference that is adjusted based on propagation delay
US9002359B1 (en) 2012-04-12 2015-04-07 Sprint Spectrum L.P. Method and system for intelligent determination of pseudonoise (PN) offsets
US11909405B1 (en) * 2023-01-09 2024-02-20 Infineon Technologies Ag Digital coarse locking in digital phase-locked loops

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US5440597A (en) 1993-11-23 1995-08-08 Nokia Mobile Phones Ltd. Double dwell maximum likelihood acquisition system with continuous decision making for CDMA and direct spread spectrum system
US6111911A (en) * 1995-06-07 2000-08-29 Sanconix, Inc Direct sequence frequency ambiguity resolving receiver
US5764687A (en) * 1995-06-20 1998-06-09 Qualcomm Incorporated Mobile demodulator architecture for a spread spectrum multiple access communication system
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JPH09321667A (ja) 1996-05-29 1997-12-12 Yozan:Kk Ｃｄｍａ通信システム用受信機
US5790589A (en) * 1996-08-14 1998-08-04 Qualcomm Incorporated System and method for rapidly reacquiring a pilot channel
US5995483A (en) * 1996-08-22 1999-11-30 Tellabs Operations, Inc. Apparatus and method for upstream clock synchronization in a multi-point OFDM/DMT digital communication system
US5781543A (en) * 1996-08-29 1998-07-14 Qualcomm Incorporated Power-efficient acquisition of a CDMA pilot signal
JP2856198B2 (ja) * 1997-06-11 1999-02-10 日本電気株式会社 スペクトラム拡散受信機
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US6700922B2 (en) * 2001-04-09 2004-03-02 Raghu Challa System and method for acquiring a received signal in a spread spectrum device
US6728203B2 (en) * 2001-05-18 2004-04-27 Telefonaktiebolaget L.M. Ericsson Systems and methods for selecting a cell in a communications network

Also Published As

Publication number Publication date
US7020180B2 (en) 2006-03-28
IL161260A (en) 2010-11-30
BR0213089A (pt) 2004-12-28
WO2003030391A2 (en) 2003-04-10
KR100997620B1 (ko) 2010-12-01
KR20040037249A (ko) 2004-05-04
US20030067898A1 (en) 2003-04-10
WO2003030391A3 (en) 2003-08-28

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