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WO2008099734A1 - チャネル推定装置および等化装置ならびにその推定および等化方法 - Google Patents

チャネル推定装置および等化装置ならびにその推定および等化方法 Download PDF

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Publication number
WO2008099734A1
WO2008099734A1 PCT/JP2008/051953 JP2008051953W WO2008099734A1 WO 2008099734 A1 WO2008099734 A1 WO 2008099734A1 JP 2008051953 W JP2008051953 W JP 2008051953W WO 2008099734 A1 WO2008099734 A1 WO 2008099734A1
Authority
WO
WIPO (PCT)
Prior art keywords
unit
channel estimation
equalization
channel
noise path
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2008/051953
Other languages
English (en)
French (fr)
Inventor
Masayuki Kimata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to CN2008800044924A priority Critical patent/CN101606325B/zh
Priority to DE08710849T priority patent/DE08710849T1/de
Priority to US12/449,402 priority patent/US8457224B2/en
Priority to JP2008558060A priority patent/JP4725648B2/ja
Priority to EP08710849.4A priority patent/EP2120359B1/en
Priority to CA2677602A priority patent/CA2677602C/en
Priority to KR1020097018662A priority patent/KR101176265B1/ko
Publication of WO2008099734A1 publication Critical patent/WO2008099734A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/005—Control of transmission; Equalising
    • 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
    • H04L25/0204—Channel estimation of multiple channels
    • 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
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H04L25/03834—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using pulse shaping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Noise Elimination (AREA)

Abstract

　本発明は、チャネル推定精度を従来よりも向上させ、等化フィルタのウエイト計算に用いることで優れた等化特性が得られるチャネル推定装置を提供する。サブキャリアコピー部２０は、相関処理部１４で推定したチャネル推定とサブキャリアコピー数Ｋを用いて、端のサブキャリアをＫ個コピーする。ＩＤＦＴ部１５は、サブキャリアコピー部２０で得られたチャネル推定を時間領域のチャネル応答に変換する。雑音パス除去部１６は、ＩＤＦＴ部１５の出力であるチャネル応答から雑音パスを除去する。ＤＦＴ部１７は、雑音パス除去部１６で雑音パス除去したチャネル応答をＤＦＴし、雑音を抑圧した周波数領域のチャネル推定値を出力する。ウエイト計算部５は、ＤＦＴ部１７の出力である周波数領域のチャネル推定値を入力とし、等化ウエイトを計算する。
PCT/JP2008/051953 2007-02-07 2008-02-06 チャネル推定装置および等化装置ならびにその推定および等化方法 Ceased WO2008099734A1 (ja)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CN2008800044924A CN101606325B (zh) 2007-02-07 2008-02-06 信道估计装置和均衡装置、以及其估计和均衡方法
DE08710849T DE08710849T1 (de) 2007-02-07 2008-02-06 Kanalschätzungseinrichtung, entzerrungseinrichtung und entzerrungsverfahren bei der schätzung
US12/449,402 US8457224B2 (en) 2007-02-07 2008-02-06 Apparatus for channel estimation, apparatus for equalization and method for equalization
JP2008558060A JP4725648B2 (ja) 2007-02-07 2008-02-06 チャネル推定装置および等化装置ならびにその推定および等化方法
EP08710849.4A EP2120359B1 (en) 2007-02-07 2008-02-06 Channel estimation device, equalization device, and equalization method in the estimation
CA2677602A CA2677602C (en) 2007-02-07 2008-02-06 Apparatus for channel estimation, apparatus for equalization and method for equalization
KR1020097018662A KR101176265B1 (ko) 2007-02-07 2008-02-06 채널 추정 장치 및 등화 장치와 그 추정 및 등화 방법

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-027435 2007-02-07
JP2007027435 2007-02-07

Publications (1)

Publication Number Publication Date
WO2008099734A1 true WO2008099734A1 (ja) 2008-08-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/051953 Ceased WO2008099734A1 (ja) 2007-02-07 2008-02-06 チャネル推定装置および等化装置ならびにその推定および等化方法

Country Status (9)

Country Link
US (1) US8457224B2 (ja)
EP (1) EP2120359B1 (ja)
JP (1) JP4725648B2 (ja)
KR (1) KR101176265B1 (ja)
CN (1) CN101606325B (ja)
CA (1) CA2677602C (ja)
DE (1) DE08710849T1 (ja)
ES (1) ES2334971T1 (ja)
WO (1) WO2008099734A1 (ja)

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CN117955576A (zh) * 2024-03-22 2024-04-30 北京智芯微电子科技有限公司 用于电力线载波通信的噪声抑制方法、装置及存储介质

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ES2334971T1 (es) * 2007-02-07 2010-03-18 Nec Corporation Dispositivo de estimacion de canal, dispositivo de ecualizacion y metodo de ecualizacion en la estimacion.
US20090285315A1 (en) * 2008-05-15 2009-11-19 Faraday Technology Corp. Apparatus and method for adaptive channel estimation and coherent bandwidth estimation apparatus thereof
JP5213586B2 (ja) * 2008-08-25 2013-06-19 株式会社エヌ・ティ・ティ・ドコモ ユーザ装置及び基地局装置並びに通信制御方法
US8571151B2 (en) * 2009-03-18 2013-10-29 Qualcomm Incorporated Emulation of N-bits uniform quantizer from multiple incoherent and noisy one-bit measurements
US8724686B2 (en) * 2009-03-18 2014-05-13 Qualcomm Incorporated Equalization by the pulse shape inverse of the input to the FRI processing in pulse based communications
US8965282B2 (en) * 2009-03-18 2015-02-24 Qualcomm Incorporated Finite rate of innovation (FRI) techniques for low power body area network (LP-BAN) communications
US8625817B2 (en) * 2009-03-18 2014-01-07 Qualcomm Incorporated Faster cadzow denoising based on partial eigenvalue decomposition
KR101140330B1 (ko) * 2009-12-17 2012-05-03 서울대학교산학협력단 가청주파수 대역 음향통신 송수신에서의 동기화 시스템 및 방법, 그리고 이에 적용되는 장치
CN102158437B (zh) * 2010-02-11 2014-07-02 富士通株式会社 信道频域相关性计算设备及方法
KR20120049434A (ko) * 2010-11-08 2012-05-17 삼성전자주식회사 채널 추정 방법 및 장치
US8737499B2 (en) 2011-10-17 2014-05-27 Qualcomm Incorporated Advanced interference cancellation for precoded GSM edge radio access network (GERAN)
CN103391266B (zh) * 2012-05-11 2016-12-14 电信科学技术研究院 一种频域信道响应的获取方法和设备
CN103457885B (zh) * 2012-05-31 2016-09-14 华为技术有限公司 信道估计方法、信道估计装置和接收机
CN103856240A (zh) * 2012-12-06 2014-06-11 华为技术有限公司 信号检测方法、装置及接收机
EP3179680A1 (en) * 2015-12-11 2017-06-14 Intel IP Corporation Equalizer and method for equalizing a receive signal
CN113678519B (zh) * 2019-03-04 2023-10-17 瑞典爱立信有限公司 用于估计和补偿定时提前的方法和装置
CN112910803B (zh) * 2019-12-03 2024-06-25 深圳市中兴微电子技术有限公司 信道估计方法、装置、设备及存储介质
CN111277521A (zh) * 2019-12-19 2020-06-12 南京六九零二科技有限公司 一种单载波频域均衡系统的信道估计与滤噪方法
CN114285704B (zh) * 2022-03-03 2022-06-21 广州慧睿思通科技股份有限公司 上行信道估计方法、芯片、系统及存储介质
CN115118560B (zh) * 2022-06-20 2023-12-29 中国电子科技集团公司第五十四研究所 一种基于时域自适应阈值降噪的单载波频域均衡方法
CN119921876B (zh) * 2025-01-22 2025-10-31 中国海洋大学 智能自适应水声通信系统

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Also Published As

Publication number Publication date
US8457224B2 (en) 2013-06-04
CA2677602A1 (en) 2008-08-21
KR101176265B1 (ko) 2012-08-22
JP4725648B2 (ja) 2011-07-13
CN101606325B (zh) 2013-09-18
EP2120359B1 (en) 2018-06-27
ES2334971T1 (es) 2010-03-18
KR20090108665A (ko) 2009-10-15
EP2120359A1 (en) 2009-11-18
JPWO2008099734A1 (ja) 2010-05-27
US20110007792A1 (en) 2011-01-13
CA2677602C (en) 2013-04-02
EP2120359A4 (en) 2017-01-18
DE08710849T1 (de) 2010-08-26
CN101606325A (zh) 2009-12-16

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