IL139057A - Method and device for reducing the power of a pilot signal in a CDMA system - Google Patents

Method and device for reducing the power of a pilot signal in a CDMA system

Info

Publication number
IL139057A
IL139057A IL13905799A IL13905799A IL139057A IL 139057 A IL139057 A IL 139057A IL 13905799 A IL13905799 A IL 13905799A IL 13905799 A IL13905799 A IL 13905799A IL 139057 A IL139057 A IL 139057A
Authority
IL
Israel
Prior art keywords
signal
channel
despread
pilot
phase
Prior art date
Application number
IL13905799A
Other languages
English (en)
Hebrew (he)
Other versions
IL139057A0 (en
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 IL139057A0 publication Critical patent/IL139057A0/xx
Publication of IL139057A publication Critical patent/IL139057A/en

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
IL13905799A 1998-05-14 1999-01-27 Method and device for reducing the power of a pilot signal in a CDMA system IL139057A (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 (2)

Publication Number Publication Date
IL139057A0 IL139057A0 (en) 2001-11-25
IL139057A true IL139057A (en) 2005-12-18

Family

ID=22143895

Family Applications (1)

Application Number Title Priority Date Filing Date
IL13905799A IL139057A (en) 1998-05-14 1999-01-27 Method and device for reducing the power of a pilot signal in a CDMA system

Country Status (16)

Country Link
US (10) US6366607B1 (zh)
EP (3) EP1283602B1 (zh)
JP (2) JP4004229B2 (zh)
KR (1) KR100629701B1 (zh)
CN (3) CN1501614A (zh)
AT (2) ATE262240T1 (zh)
AU (1) AU2477699A (zh)
BR (1) BR9910412A (zh)
CA (1) CA2330703A1 (zh)
DE (2) DE69904039T2 (zh)
ES (2) ES2189387T3 (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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US7333530B1 (en) * 2001-08-06 2008-02-19 Analog Devices, Inc. Despread signal recovery in digital signal processors
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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
CN1695328A (zh) * 2002-11-08 2005-11-09 皮雷利&C.有限公司 减少了偏振模色散的光通信线路和系统
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
JP4183613B2 (ja) * 2003-12-26 2008-11-19 三洋電機株式会社 受信方法および装置
CN1300949C (zh) * 2004-06-07 2007-02-14 东南大学 一种切普均衡器与瑞克接收机并行接收的方法
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
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Also Published As

Publication number Publication date
JP2002515679A (ja) 2002-05-28
BR9910412A (pt) 2001-01-09
EP1283602A3 (en) 2003-02-19
JP2008011542A (ja) 2008-01-17
US20070014338A1 (en) 2007-01-18
EP1429469A3 (en) 2004-06-30
DE69904039T2 (de) 2003-09-11
WO1999059259A1 (en) 1999-11-18
US20020039382A1 (en) 2002-04-04
US20110188546A1 (en) 2011-08-04
HK1035814A1 (en) 2001-12-07
US20120320952A1 (en) 2012-12-20
SG111970A1 (en) 2005-06-29
CN1300476A (zh) 2001-06-20
US8254431B2 (en) 2012-08-28
EP1076938B1 (en) 2002-11-20
IL139057A0 (en) 2001-11-25
US6480530B2 (en) 2002-11-12
US7949037B2 (en) 2011-05-24
CA2330703A1 (en) 1999-11-18
DE69915714D1 (de) 2004-04-22
TR200003340T2 (tr) 2001-02-21
US20050254557A1 (en) 2005-11-17
US20020097787A1 (en) 2002-07-25
EP1283602A2 (en) 2003-02-12
ES2218498T3 (es) 2004-11-16
EP1429469A2 (en) 2004-06-16
CN1213547C (zh) 2005-08-03
US6483868B2 (en) 2002-11-19
DE69915714T2 (de) 2005-02-10
US6707845B2 (en) 2004-03-16
JP4566222B2 (ja) 2010-10-20
KR20010043543A (ko) 2001-05-25
KR100629701B1 (ko) 2006-09-29
US20040156424A1 (en) 2004-08-12
ATE228278T1 (de) 2002-12-15
EP1283602B1 (en) 2004-03-17
JP4004229B2 (ja) 2007-11-07
US20020067760A1 (en) 2002-06-06
US6944209B2 (en) 2005-09-13
US8582625B2 (en) 2013-11-12
US6366607B1 (en) 2002-04-02
DE69904039D1 (de) 2003-01-02
ES2189387T3 (es) 2003-07-01
US7110443B2 (en) 2006-09-19
US6516022B2 (en) 2003-02-04
CN1501614A (zh) 2004-06-02
ATE262240T1 (de) 2004-04-15
US20030156629A1 (en) 2003-08-21
CN1917385A (zh) 2007-02-21
CN100530995C (zh) 2009-08-19
AU2477699A (en) 1999-11-29
EP1076938A1 (en) 2001-02-21

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