KR100369420B1 - 무선 통신 시스템에서 신호 검색을 수행하기 위한 방법 및장치 - Google Patents

무선 통신 시스템에서 신호 검색을 수행하기 위한 방법 및장치 Download PDF

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Publication number
KR100369420B1
KR100369420B1 KR10-2001-7003666A KR20017003666A KR100369420B1 KR 100369420 B1 KR100369420 B1 KR 100369420B1 KR 20017003666 A KR20017003666 A KR 20017003666A KR 100369420 B1 KR100369420 B1 KR 100369420B1
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KR
South Korea
Prior art keywords
walsh symbol
energy
signal
walsh
multipath
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KR10-2001-7003666A
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English (en)
Korean (ko)
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KR20010075286A (ko
Inventor
타일러 에이. 브라운
마이클 마오 왕
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모토로라 인코포레이티드
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/204—Multiple access
    • H04B7/216—Code division or spread-spectrum multiple access [CDMA, SSMA]
    • 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
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
KR10-2001-7003666A 1998-09-22 1999-09-21 무선 통신 시스템에서 신호 검색을 수행하기 위한 방법 및장치 Expired - Lifetime KR100369420B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/158,486 1998-09-22
US09/158,486 US6108324A (en) 1998-09-22 1998-09-22 Apparatus and method for performing a signal search in a wireless communication system

Publications (2)

Publication Number Publication Date
KR20010075286A KR20010075286A (ko) 2001-08-09
KR100369420B1 true KR100369420B1 (ko) 2003-01-30

Family

ID=22568349

Family Applications (1)

Application Number Title Priority Date Filing Date
KR10-2001-7003666A Expired - Lifetime KR100369420B1 (ko) 1998-09-22 1999-09-21 무선 통신 시스템에서 신호 검색을 수행하기 위한 방법 및장치

Country Status (4)

Country Link
US (1) US6108324A (enExample)
JP (1) JP4342733B2 (enExample)
KR (1) KR100369420B1 (enExample)
WO (1) WO2000018039A1 (enExample)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100291477B1 (ko) * 1998-06-02 2001-07-12 윤종용 이동통신시스템의가변데이터율전송환경에서순차적경로검색방법
US6487236B1 (en) * 1998-09-30 2002-11-26 Fujitsu Limited Method and apparatus for achieving demodulation in radio communications system using M-sequence orthogonal modulation
US6965778B1 (en) 1999-04-08 2005-11-15 Ipr Licensing, Inc. Maintenance of channel usage in a wireless communication system
US6606490B1 (en) * 1999-08-10 2003-08-12 Intel Corporation Battery operated radio receivers having power save by reducing active reception time
IL134512A0 (en) * 2000-02-13 2001-04-30 Dspc Tech Ltd Offline acquisition method for cdma
US6693954B1 (en) * 2000-04-17 2004-02-17 Rf Micro Devices, Inc. Apparatus and method of early-late symbol tracking for a complementary code keying receiver
US6674818B1 (en) 2000-04-17 2004-01-06 Rf Micro Devices, Inc. Reduced complexity decision circuitry
US6661834B1 (en) 2000-04-17 2003-12-09 Rf Micro Devices, Inc. Carrier recovery for spread spectrum communications
JP3510589B2 (ja) * 2000-12-15 2004-03-29 Ｎｅｃエレクトロニクス株式会社 セルサーチ方法およびセルサーチ装置
CN1151622C (zh) * 2000-12-18 2004-05-26 信息产业部电信传输研究所 基于多径信道能量窗重心跟踪环路的导频信道跟踪方法
US7301987B2 (en) 2001-02-08 2007-11-27 Intel Corporation Background processing and searching for a communication channel
US6768768B2 (en) * 2001-09-19 2004-07-27 Qualcomm Incorporated Method and apparatus for step two W-CDMA searching
AU2002366178C1 (en) * 2001-11-20 2009-03-05 Qualcomm Incorporated Reverse link power controlled repeater
KR100423723B1 (ko) * 2001-12-06 2004-03-22 한국전자통신연구원 시분할 방법을 이용한 동적 할당 탐색 장치
US6728304B2 (en) * 2001-12-18 2004-04-27 Motorola, Inc. Method and apparatus for performing a signal detection and assignment in a wireless communication system
US7099679B2 (en) * 2002-07-18 2006-08-29 Intel Corporation Method of saving power by reducing active reception time in standby mode
US20040109494A1 (en) * 2002-12-10 2004-06-10 Kindred Daniel R. Finger merge protection for rake receivers using polling
US7236517B2 (en) * 2003-05-19 2007-06-26 L3 Communications Corp. Method for determining the spreading sequence of a spread spectrum signal
US8780885B2 (en) * 2007-07-09 2014-07-15 Qualcomm Incorporated Synchronization of a peer-to-peer communication network
US8811372B2 (en) * 2007-07-09 2014-08-19 Qualcomm Incorporated Synchronization of a peer-to-peer communication network
US8331331B2 (en) * 2007-08-03 2012-12-11 Qualcomm Incorporated Method and apparatus for determining cell timing in a wireless communication system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5530716A (en) * 1994-06-30 1996-06-25 Motorola, Inc. Method and apparatus for identifying a coded communication signal

Also Published As

Publication number Publication date
JP2002525964A (ja) 2002-08-13
JP4342733B2 (ja) 2009-10-14
KR20010075286A (ko) 2001-08-09
US6108324A (en) 2000-08-22
WO2000018039A1 (en) 2000-03-30

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