WO2002063814A8 - Adaptive channel estimation using continuous pilot signal based on doppler period - Google Patents

Adaptive channel estimation using continuous pilot signal based on doppler period

Info

Publication number
WO2002063814A8
WO2002063814A8 PCT/US2002/002953 US0202953W WO02063814A8 WO 2002063814 A8 WO2002063814 A8 WO 2002063814A8 US 0202953 W US0202953 W US 0202953W WO 02063814 A8 WO02063814 A8 WO 02063814A8
Authority
WO
WIPO (PCT)
Prior art keywords
signal based
pilot signal
channel estimation
continuous pilot
adaptive channel
Prior art date
Application number
PCT/US2002/002953
Other languages
French (fr)
Other versions
WO2002063814A2 (en
Inventor
Wen-Yi Kuo
Original Assignee
Wiscom Technologies 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 Wiscom Technologies Inc filed Critical Wiscom Technologies Inc
Priority to AU2002238012A priority Critical patent/AU2002238012A1/en
Priority to CA002439908A priority patent/CA2439908A1/en
Priority to EP02704322A priority patent/EP1522162A4/en
Publication of WO2002063814A2 publication Critical patent/WO2002063814A2/en
Publication of WO2002063814A8 publication Critical patent/WO2002063814A8/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/01—Reducing phase shift
    • 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
    • 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
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • 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
    • H04B1/70754—Setting of search window, i.e. range of code offsets to be searched
    • 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
    • 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
    • H04B1/712—Weighting of fingers for combining, e.g. amplitude control or phase rotation using an inner loop
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
PCT/US2002/002953 2001-02-02 2002-01-31 Adaptive channel estimation using continuous pilot signal based on doppler period WO2002063814A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU2002238012A AU2002238012A1 (en) 2001-02-02 2002-01-31 Adaptive channel estimation using continuous pilot signal based on doppler period
CA002439908A CA2439908A1 (en) 2001-02-02 2002-01-31 Adaptive channel estimation using continuous pilot signal based on doppler period
EP02704322A EP1522162A4 (en) 2001-02-02 2002-01-31 Adaptive channel estimation using continuous pilot signal based on doppler period

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US26602501P 2001-02-02 2001-02-02
US60/266,025 2001-02-02
US09/861,041 2001-05-18
US09/861,041 US6647055B2 (en) 2000-08-31 2001-05-18 Adaptive channel estimation using continuous pilot signal based on doppler period

Publications (2)

Publication Number Publication Date
WO2002063814A2 WO2002063814A2 (en) 2002-08-15
WO2002063814A8 true WO2002063814A8 (en) 2005-02-17

Family

ID=26951580

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/002953 WO2002063814A2 (en) 2001-02-02 2002-01-31 Adaptive channel estimation using continuous pilot signal based on doppler period

Country Status (5)

Country Link
US (2) US6647055B2 (en)
EP (1) EP1522162A4 (en)
AU (1) AU2002238012A1 (en)
CA (1) CA2439908A1 (en)
WO (1) WO2002063814A2 (en)

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US6647055B2 (en) * 2000-08-31 2003-11-11 Wen-Yi Kuo Adaptive channel estimation using continuous pilot signal based on doppler period
KR100529424B1 (en) * 2001-01-12 2005-11-17 마츠시타 덴끼 산교 가부시키가이샤 Transmitting device and transmitting method
CN1156179C (en) * 2001-09-03 2004-06-30 信息产业部电信传输研究所 Dynamic regulation method and device of channel estimation everage region
US7382838B2 (en) * 2001-09-17 2008-06-03 Digeo, Inc. Frequency drift compensation across multiple broadband signals in a digital receiver system
US7974331B2 (en) * 2002-01-07 2011-07-05 St-Ericsson Sa Rake receiver with individual finger compensator(s)
EP1543633B1 (en) * 2002-09-27 2006-11-15 Telefonaktiebolaget LM Ericsson (publ) Evaluating orthogonal codes transmitted in a wireless communications network
US6760321B2 (en) * 2002-10-21 2004-07-06 Sandbridge Technologies, Inc. Method and apparatus for block-based chip timing estimation in a code division multiple access communication system
DE10250361B4 (en) 2002-10-29 2009-12-24 Infineon Technologies Ag Apparatus and method for processing pilot symbols for channel estimation by means of adaptive low-pass filtering
US20040157626A1 (en) * 2003-02-10 2004-08-12 Vincent Park Paging methods and apparatus
US7065371B1 (en) 2003-02-20 2006-06-20 Comsys Communication & Signal Processing Ltd. Channel order selection and channel estimation in wireless communication system
US7434145B2 (en) * 2003-04-02 2008-10-07 Qualcomm Incorporated Extracting soft information in a block-coherent communication system
US8196000B2 (en) * 2003-04-02 2012-06-05 Qualcomm Incorporated Methods and apparatus for interleaving in a block-coherent communication system
US7359445B2 (en) * 2003-06-27 2008-04-15 Nokia Corporation System, method and computer program product for demodulating quadrature amplitude modulated signals based upon a speed of a receiver
US7289551B2 (en) * 2003-06-27 2007-10-30 Nokia Siemens Corporation System, method and computer program product for demodulating quadrature amplitude modulated signals
DE10337068B4 (en) 2003-08-12 2005-09-29 Infineon Technologies Ag Adaptive channel estimation by varying the integration length in the despreading of spread-coded training symbol sequences
EP1513270B1 (en) 2003-09-05 2010-11-10 STMicroelectronics Srl Method for estimating the Doppler spread in radio mobile telecommunication systems
KR101002857B1 (en) * 2003-09-16 2010-12-21 삼성전자주식회사 Method and apparatus for estimating a velocity of a mobile terminal in a mobile communication system
KR101009827B1 (en) * 2003-09-16 2011-01-19 삼성전자주식회사 Estimating apparatus and method of mobile station speed in a mobile communication system
TWI279998B (en) * 2004-05-25 2007-04-21 Realtek Semiconductor Corp Adaptive channel estimation method for multi-carrier communication system
US7209510B2 (en) * 2004-07-20 2007-04-24 Skyworks Solution, Inc. Channel estimation system for a wideband code division multiple access (WCDMA) communication system
US7702045B2 (en) * 2004-08-31 2010-04-20 Theta Microelectronics, Inc. Method for estimating wireless channel parameters
US20060128326A1 (en) * 2004-12-09 2006-06-15 Interdigital Technology Corporation Low complexity adaptive channel estimation
US7573964B2 (en) * 2004-12-16 2009-08-11 Motorola, Inc. Channel estimator with extended channel bandwidth
WO2008055207A2 (en) * 2006-10-31 2008-05-08 Qualcomm Incorporated Reciever for the geo satellite reverse link using tail-biting code
KR101360350B1 (en) * 2007-08-21 2014-02-10 재단법인서울대학교산학협력재단 Link adaptation system using doppler frequency and method using the same
EP2297846B1 (en) * 2008-05-30 2018-05-30 Korea Electronics Technology Institute The demodulator for simultaneous multi-node receiving and the method thereof
EP2194655A1 (en) * 2008-12-05 2010-06-09 ST Wireless SA Variable path detection length for efficient paging detection procedure
CN101814931B (en) * 2009-02-19 2014-07-02 中兴通讯股份有限公司 Doppler frequency shift estimation and compensation method in TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) system
JP5583942B2 (en) * 2009-09-30 2014-09-03 富士通株式会社 Wireless receiver
US8923153B2 (en) 2012-11-02 2014-12-30 Intel Corporation Techniques to update a wireless communication channel estimation
US9118413B2 (en) * 2012-12-20 2015-08-25 Nokia Technologies Oy Apparatus and a method
US9118515B2 (en) * 2014-01-08 2015-08-25 Freescale Semiconductor, Inc. Channel estimation in wireless communication
CN107332795B (en) * 2016-04-29 2019-12-03 展讯通信（上海）有限公司 The channel estimation methods and device of high-speed rail scene
US10117257B1 (en) * 2016-11-18 2018-10-30 Sprint Spectrum L.P. Estimating uplink interference in a wireless network
CN108828570B (en) * 2018-06-22 2020-07-10 北京邮电大学 Distance measurement method and distance measurement device based on path loss factor dynamic estimation

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US5712877A (en) * 1995-05-26 1998-01-27 Simon Fraser University Pilot-symbol aided continuous phase modulation system
US5737327A (en) * 1996-03-29 1998-04-07 Motorola, Inc. Method and apparatus for demodulation and power control bit detection in a spread spectrum communication system
US6633553B1 (en) * 1998-12-31 2003-10-14 Samsung Electronics Co., Ltd. Apparatus and method for forward power controlling in CDMA mobile telecommunication system
US6493329B1 (en) * 1999-08-23 2002-12-10 Qualcomm Incorporated Adaptive channel estimation in a wireless communication system
JP4076202B2 (en) * 2000-08-07 2008-04-16 富士通株式会社 Spread spectrum signal receiver and receiving method
US6647055B2 (en) * 2000-08-31 2003-11-11 Wen-Yi Kuo Adaptive channel estimation using continuous pilot signal based on doppler period
US6847832B2 (en) * 2001-03-09 2005-01-25 Kathrein-Werke Kg System and method for providing phase matching with optimized beam widths

Also Published As

Publication number Publication date
US6647055B2 (en) 2003-11-11
CA2439908A1 (en) 2002-08-15
WO2002063814A2 (en) 2002-08-15
US20020044593A1 (en) 2002-04-18
US7274728B1 (en) 2007-09-25
AU2002238012A1 (en) 2002-08-19
EP1522162A2 (en) 2005-04-13
EP1522162A4 (en) 2006-01-04

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