SG111970A1 - Multipath cdma receiver for reduced pilot - Google Patents

Multipath cdma receiver for reduced pilot

Info

Publication number
SG111970A1
SG111970A1 SG200206308A SG200206308A SG111970A1 SG 111970 A1 SG111970 A1 SG 111970A1 SG 200206308 A SG200206308 A SG 200206308A SG 200206308 A SG200206308 A SG 200206308A SG 111970 A1 SG111970 A1 SG 111970A1
Authority
SG
Singapore
Prior art keywords
signal
channel
pilot
producing
produce
Prior art date
Application number
SG200206308A
Other languages
English (en)
Inventor
Fatih M Ozluturk
David K Mesecher
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 SG111970A1 publication Critical patent/SG111970A1/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Circuits Of Receivers In General (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Radio Relay Systems (AREA)
SG200206308A 1998-05-14 1999-01-27 Multipath cdma receiver for reduced pilot SG111970A1 (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
SG111970A1 true SG111970A1 (en) 2005-06-29

Family

ID=22143895

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200206308A SG111970A1 (en) 1998-05-14 1999-01-27 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) CN100530995C (zh)
AT (2) ATE262240T1 (zh)
AU (1) AU2477699A (zh)
BR (1) BR9910412A (zh)
CA (1) CA2330703A1 (zh)
DE (2) DE69904039T2 (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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JP3715141B2 (ja) * 1999-07-13 2005-11-09 松下電器産業株式会社 通信端末装置
US6560299B1 (en) * 1999-07-30 2003-05-06 Christopher H Strolle Diversity receiver with joint signal processing
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US7069545B2 (en) * 2000-12-29 2006-06-27 Intel Corporation Quantization and compression for computation reuse
US6990137B2 (en) * 2001-05-17 2006-01-24 Qualcomm, Incorporated System and method for received signal prediction in wireless communications systems
US7170924B2 (en) * 2001-05-17 2007-01-30 Qualcomm, Inc. System and method for adjusting combiner weights using an adaptive algorithm in wireless communications system
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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
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
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
US8958460B2 (en) 2008-03-18 2015-02-17 On-Ramp Wireless, Inc. Forward error correction media access control system
US8520721B2 (en) 2008-03-18 2013-08-27 On-Ramp Wireless, Inc. RSSI measurement mechanism in the presence of pulsed jammers
US7593383B1 (en) 2008-03-18 2009-09-22 On-Ramp Wireless, Inc. Uplink transmitter in a random phase multiple access communication system
US7773664B2 (en) 2008-03-18 2010-08-10 On-Ramp Wireless, Inc. Random phase multiple access system with meshing
US7733945B2 (en) 2008-03-18 2010-06-08 On-Ramp Wireless, Inc. Spread spectrum with doppler optimization
US7639726B1 (en) 2009-03-20 2009-12-29 On-Ramp Wireless, Inc. Downlink communication
US8363699B2 (en) 2009-03-20 2013-01-29 On-Ramp Wireless, Inc. Random timing offset determination
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WO2013002387A1 (ja) 2011-06-29 2013-01-03 株式会社日本触媒 ポリアクリル酸（塩）系吸水性樹脂粉末及びその製造方法
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Also Published As

Publication number Publication date
US6516022B2 (en) 2003-02-04
DE69904039T2 (de) 2003-09-11
US6480530B2 (en) 2002-11-12
US7949037B2 (en) 2011-05-24
IL139057A (en) 2005-12-18
US20020039382A1 (en) 2002-04-04
CN1213547C (zh) 2005-08-03
IL139057A0 (en) 2001-11-25
EP1283602B1 (en) 2004-03-17
EP1429469A2 (en) 2004-06-16
US7110443B2 (en) 2006-09-19
US6483868B2 (en) 2002-11-19
ES2218498T3 (es) 2004-11-16
US8582625B2 (en) 2013-11-12
KR100629701B1 (ko) 2006-09-29
CN100530995C (zh) 2009-08-19
EP1429469A3 (en) 2004-06-30
ATE228278T1 (de) 2002-12-15
US6707845B2 (en) 2004-03-16
HK1035814A1 (en) 2001-12-07
US20040156424A1 (en) 2004-08-12
WO1999059259A1 (en) 1999-11-18
US20030156629A1 (en) 2003-08-21
DE69915714T2 (de) 2005-02-10
US20110188546A1 (en) 2011-08-04
ES2189387T3 (es) 2003-07-01
JP4004229B2 (ja) 2007-11-07
CA2330703A1 (en) 1999-11-18
JP2008011542A (ja) 2008-01-17
DE69915714D1 (de) 2004-04-22
CN1917385A (zh) 2007-02-21
US20020067760A1 (en) 2002-06-06
EP1076938A1 (en) 2001-02-21
US6944209B2 (en) 2005-09-13
CN1300476A (zh) 2001-06-20
TR200003340T2 (tr) 2001-02-21
CN1501614A (zh) 2004-06-02
ATE262240T1 (de) 2004-04-15
US6366607B1 (en) 2002-04-02
US20050254557A1 (en) 2005-11-17
EP1076938B1 (en) 2002-11-20
US8254431B2 (en) 2012-08-28
US20070014338A1 (en) 2007-01-18
EP1283602A2 (en) 2003-02-12
DE69904039D1 (de) 2003-01-02
US20020097787A1 (en) 2002-07-25
BR9910412A (pt) 2001-01-09
EP1283602A3 (en) 2003-02-19
AU2477699A (en) 1999-11-29
US20120320952A1 (en) 2012-12-20
KR20010043543A (ko) 2001-05-25
JP4566222B2 (ja) 2010-10-20
JP2002515679A (ja) 2002-05-28

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