HK1035814A1 - Multipath cdma receiver for reduced pilot - Google Patents

Multipath cdma receiver for reduced pilot

Info

Publication number
HK1035814A1
HK1035814A1 HK01105905A HK01105905A HK1035814A1 HK 1035814 A1 HK1035814 A1 HK 1035814A1 HK 01105905 A HK01105905 A HK 01105905A HK 01105905 A HK01105905 A HK 01105905A HK 1035814 A1 HK1035814 A1 HK 1035814A1
Authority
HK
Hong Kong
Prior art keywords
signal
channel
pilot
producing
produce
Prior art date
Application number
HK01105905A
Other languages
English (en)
Inventor
David K Mesecher
Fatih M Ozluturk
Alexander M Jacques
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
Publication of HK1035814A1 publication Critical patent/HK1035814A1/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
    • H04B1/7085—Synchronisation aspects using a code tracking loop, e.g. a delay-locked loop
    • 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
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/30—Circuits for homodyne or synchrodyne receivers
    • 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
    • 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
    • H04B1/70755—Setting of lock conditions, e.g. threshold
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • 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
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0063—Elements of loops
    • H04L2027/0067—Phase error detectors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0212—Channel estimation of impulse response
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
HK01105905A 1998-05-14 2001-08-21 Multipath cdma receiver for reduced pilot HK1035814A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/078,417 US6366607B1 (en) 1998-05-14 1998-05-14 Processing for improved performance and reduced pilot
PCT/US1999/001794 WO1999059259A1 (en) 1998-05-14 1999-01-27 Multipath cdma receiver for reduced pilot

Publications (1)

Publication Number Publication Date
HK1035814A1 true HK1035814A1 (en) 2001-12-07

Family

ID=22143895

Family Applications (1)

Application Number Title Priority Date Filing Date
HK01105905A HK1035814A1 (en) 1998-05-14 2001-08-21 Multipath cdma receiver for reduced pilot

Country Status (16)

Country Link
US (10) US6366607B1 (zh)
EP (3) EP1429469A3 (zh)
JP (2) JP4004229B2 (zh)
KR (1) KR100629701B1 (zh)
CN (3) CN1501614A (zh)
AT (2) ATE228278T1 (zh)
AU (1) AU2477699A (zh)
BR (1) BR9910412A (zh)
CA (1) CA2330703A1 (zh)
DE (2) DE69915714T2 (zh)
ES (2) ES2218498T3 (zh)
HK (1) HK1035814A1 (zh)
IL (1) IL139057A (zh)
SG (1) SG111970A1 (zh)
TR (1) TR200003340T2 (zh)
WO (1) WO1999059259A1 (zh)

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US7023902B2 (en) * 2001-11-06 2006-04-04 Qualcomm Inc. Apparatus and method for scalable offline CDMA demodulation
US7801085B1 (en) * 2002-06-03 2010-09-21 Ericsson Ab System and method of processing CDMA signals
US7130329B2 (en) * 2002-07-08 2006-10-31 Qualcomm Incorporated Apparatus and method for radio frequency tracking and acquisition
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US7180963B2 (en) * 2002-11-25 2007-02-20 Ali Corporation Digital receiver capable of processing modulated signals at various data rates
US7302233B2 (en) * 2003-06-23 2007-11-27 Texas Instruments Incorporated Multiuser detection for wireless communications systems in the presence of interference
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GB0420184D0 (en) * 2004-09-10 2004-10-13 Ttp Communications Ltd Method and apparatus for selecting a channel filter for a communication system
JP4886276B2 (ja) * 2005-11-17 2012-02-29 ザインエレクトロニクス株式会社 クロックデータ復元装置
US7764728B2 (en) * 2006-10-18 2010-07-27 Via Technologies, Inc. Apparatus and method for reducing complexity of matched filter
US7868819B2 (en) * 2007-09-07 2011-01-11 The Board Of Trustees Of The Leland Stanford Junior University Arrangements for satellite-based navigation and methods therefor
US7990929B2 (en) * 2007-11-27 2011-08-02 Harris Corporation Wireless communications device including rake finger stage providing frequency correction and related methods
US8520721B2 (en) 2008-03-18 2013-08-27 On-Ramp Wireless, Inc. RSSI measurement mechanism in the presence of pulsed jammers
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US20090239550A1 (en) 2008-03-18 2009-09-24 Myers Theodore J Random phase multiple access system with location tracking
US8477830B2 (en) 2008-03-18 2013-07-02 On-Ramp Wireless, Inc. Light monitoring system using a random phase multiple access system
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CN108897014A (zh) * 2018-07-25 2018-11-27 航天恒星科技有限公司 一种无模糊度接收boc导航信号的抗多径方法

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Also Published As

Publication number Publication date
BR9910412A (pt) 2001-01-09
US6483868B2 (en) 2002-11-19
EP1076938B1 (en) 2002-11-20
US20020097787A1 (en) 2002-07-25
US8254431B2 (en) 2012-08-28
ES2218498T3 (es) 2004-11-16
US6480530B2 (en) 2002-11-12
US6516022B2 (en) 2003-02-04
KR100629701B1 (ko) 2006-09-29
US6944209B2 (en) 2005-09-13
DE69904039D1 (de) 2003-01-02
EP1076938A1 (en) 2001-02-21
ATE262240T1 (de) 2004-04-15
JP2008011542A (ja) 2008-01-17
US20110188546A1 (en) 2011-08-04
US20040156424A1 (en) 2004-08-12
US20050254557A1 (en) 2005-11-17
JP4004229B2 (ja) 2007-11-07
EP1283602A3 (en) 2003-02-19
CN1501614A (zh) 2004-06-02
EP1283602A2 (en) 2003-02-12
AU2477699A (en) 1999-11-29
TR200003340T2 (tr) 2001-02-21
US6366607B1 (en) 2002-04-02
DE69904039T2 (de) 2003-09-11
EP1283602B1 (en) 2004-03-17
DE69915714T2 (de) 2005-02-10
ATE228278T1 (de) 2002-12-15
JP4566222B2 (ja) 2010-10-20
US20070014338A1 (en) 2007-01-18
WO1999059259A1 (en) 1999-11-18
US7949037B2 (en) 2011-05-24
JP2002515679A (ja) 2002-05-28
EP1429469A2 (en) 2004-06-16
ES2189387T3 (es) 2003-07-01
US8582625B2 (en) 2013-11-12
IL139057A (en) 2005-12-18
CN1917385A (zh) 2007-02-21
US20020067760A1 (en) 2002-06-06
CA2330703A1 (en) 1999-11-18
SG111970A1 (en) 2005-06-29
US6707845B2 (en) 2004-03-16
US7110443B2 (en) 2006-09-19
US20030156629A1 (en) 2003-08-21
EP1429469A3 (en) 2004-06-30
CN1213547C (zh) 2005-08-03
US20120320952A1 (en) 2012-12-20
CN1300476A (zh) 2001-06-20
DE69915714D1 (de) 2004-04-22
IL139057A0 (en) 2001-11-25
US20020039382A1 (en) 2002-04-04
KR20010043543A (ko) 2001-05-25
CN100530995C (zh) 2009-08-19

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PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20170127