JP5689365B2 - 復調回路、復調方法および受信装置 - Google Patents

復調回路、復調方法および受信装置 Download PDF

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Publication number
JP5689365B2
JP5689365B2 JP2011119165A JP2011119165A JP5689365B2 JP 5689365 B2 JP5689365 B2 JP 5689365B2 JP 2011119165 A JP2011119165 A JP 2011119165A JP 2011119165 A JP2011119165 A JP 2011119165A JP 5689365 B2 JP5689365 B2 JP 5689365B2
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JP
Japan
Prior art keywords
likelihood value
soft decision
unit
decision processing
axis
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Expired - Fee Related
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JP2011119165A
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English (en)
Japanese (ja)
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JP2012249076A5 (enExample
JP2012249076A (ja
Inventor
直人 足立
直人 足立
雅敬 梅田
雅敬 梅田
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Fujitsu Ltd
Fujitsu Semiconductor Ltd
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Fujitsu Ltd
Fujitsu Semiconductor Ltd
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Application filed by Fujitsu Ltd, Fujitsu Semiconductor Ltd filed Critical Fujitsu Ltd
Priority to JP2011119165A priority Critical patent/JP5689365B2/ja
Priority to CN201210098779.6A priority patent/CN102801677B/zh
Priority to US13/442,443 priority patent/US8750433B2/en
Publication of JP2012249076A publication Critical patent/JP2012249076A/ja
Publication of JP2012249076A5 publication Critical patent/JP2012249076A5/ja
Application granted granted Critical
Publication of JP5689365B2 publication Critical patent/JP5689365B2/ja
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    • 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
    • H04L25/06—DC level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H04L25/067—DC level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing soft decisions, i.e. decisions together with an estimate of reliability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0054—Maximum-likelihood or sequential decoding, e.g. Viterbi, Fano, ZJ algorithms
    • 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
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/03414—Multicarrier
    • 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
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/0342—QAM
    • 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
    • H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
    • H04L25/0232—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Artificial Intelligence (AREA)
  • Power Engineering (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Error Detection And Correction (AREA)
JP2011119165A 2011-05-27 2011-05-27 復調回路、復調方法および受信装置 Expired - Fee Related JP5689365B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2011119165A JP5689365B2 (ja) 2011-05-27 2011-05-27 復調回路、復調方法および受信装置
CN201210098779.6A CN102801677B (zh) 2011-05-27 2012-03-31 解调电路、解调方法和接收装置
US13/442,443 US8750433B2 (en) 2011-05-27 2012-04-09 Demodulation circuit, demodulation method and receiving apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011119165A JP5689365B2 (ja) 2011-05-27 2011-05-27 復調回路、復調方法および受信装置

Publications (3)

Publication Number Publication Date
JP2012249076A JP2012249076A (ja) 2012-12-13
JP2012249076A5 JP2012249076A5 (enExample) 2014-03-20
JP5689365B2 true JP5689365B2 (ja) 2015-03-25

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Family Applications (1)

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JP2011119165A Expired - Fee Related JP5689365B2 (ja) 2011-05-27 2011-05-27 復調回路、復調方法および受信装置

Country Status (3)

Country Link
US (1) US8750433B2 (enExample)
JP (1) JP5689365B2 (enExample)
CN (1) CN102801677B (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6160461B2 (ja) * 2013-11-29 2017-07-12 富士通株式会社 尤度重み付け回路
JP6674105B2 (ja) * 2014-06-24 2020-04-01 株式会社ソシオネクスト インタフェース装置およびそれを備えた受信装置
CN105227509B (zh) * 2014-07-03 2018-04-13 扬智科技股份有限公司 正交幅度调制码解调系统中的混合判决方法及其接收装置
JP6546467B2 (ja) * 2015-06-30 2019-07-17 日本放送協会 送信装置、受信装置およびチップ
US10575267B2 (en) 2017-01-05 2020-02-25 Samsung Electronics Co., Ltd System and method for providing weighted pattern demapper for Bluetooth® low energy long range
EP3624412B1 (en) * 2017-06-27 2022-06-08 Mitsubishi Electric Corporation Likelihood generation device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3756122B2 (ja) * 2002-03-05 2006-03-15 シャープ株式会社 Ｏｆｄｍ復調装置
US7349496B2 (en) * 2003-06-27 2008-03-25 Nortel Networks Limited Fast space-time decoding using soft demapping with table look-up
JP2008010987A (ja) 2006-06-27 2008-01-17 Matsushita Electric Ind Co Ltd 受信装置及び無線通信システム
JP4633759B2 (ja) * 2007-03-26 2011-02-16 日本電信電話株式会社 ビタビ復号器
CN100586056C (zh) * 2008-01-11 2010-01-27 清华大学 基于低密度奇偶校验译码软判决信息的迭代定时同步方法
CN101540752B (zh) * 2008-03-18 2011-08-31 卓胜微电子（上海）有限公司 Qam软解调方法
US8428169B1 (en) * 2008-07-30 2013-04-23 Marvell International Ltd. MIMO soft demodulation using hard-decision candidate selection
CN101656594B (zh) * 2009-09-23 2012-10-24 北京海尔集成电路设计有限公司 一种删除型卷积码的支路同步方法及其设备
CN101662341B (zh) * 2009-09-25 2012-08-01 意法·爱立信半导体（北京）有限公司 一种多输入多输出信号检测方法和装置

Also Published As

Publication number Publication date
CN102801677A (zh) 2012-11-28
US20120300883A1 (en) 2012-11-29
US8750433B2 (en) 2014-06-10
JP2012249076A (ja) 2012-12-13
CN102801677B (zh) 2016-12-14

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