CN102801677B - 解调电路、解调方法和接收装置 - Google Patents

解调电路、解调方法和接收装置 Download PDF

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Publication number
CN102801677B
CN102801677B CN201210098779.6A CN201210098779A CN102801677B CN 102801677 B CN102801677 B CN 102801677B CN 201210098779 A CN201210098779 A CN 201210098779A CN 102801677 B CN102801677 B CN 102801677B
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CN
China
Prior art keywords
decision processing
likelihood value
soft decision
bits
axis
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.)
Expired - Fee Related
Application number
CN201210098779.6A
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English (en)
Chinese (zh)
Other versions
CN102801677A (zh
Inventor
足立直人
梅田雅敬
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.)
Fujitsu Ltd
Socionext Inc
Original Assignee
Sothink Corp
Fujitsu Ltd
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.)
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Publication date
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Publication of CN102801677A publication Critical patent/CN102801677A/zh
Application granted granted Critical
Publication of CN102801677B publication Critical patent/CN102801677B/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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

Landscapes

  • 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)
CN201210098779.6A 2011-05-27 2012-03-31 解调电路、解调方法和接收装置 Expired - Fee Related CN102801677B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011-119165 2011-05-27
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 (2)

Publication Number Publication Date
CN102801677A CN102801677A (zh) 2012-11-28
CN102801677B true CN102801677B (zh) 2016-12-14

Family

ID=47200644

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210098779.6A Expired - Fee Related CN102801677B (zh) 2011-05-27 2012-03-31 解调电路、解调方法和接收装置

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
CN110071785B (zh) * 2014-06-24 2021-10-26 株式会社索思未来 接口方法
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
JP6633252B2 (ja) * 2017-06-27 2020-01-22 三菱電機株式会社 尤度生成装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003258762A (ja) * 2002-03-05 2003-09-12 Sharp Corp Ｏｆｄｍ復調装置
CN101217355A (zh) * 2008-01-11 2008-07-09 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
JP2008244592A (ja) * 2007-03-26 2008-10-09 Nippon Telegr & Teleph Corp <Ntt> ビタビ復号器
CN101540752A (zh) * 2008-03-18 2009-09-23 卓胜微电子（上海）有限公司 Qam软解调方法
CN101656594A (zh) * 2009-09-23 2010-02-24 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
CN101662341A (zh) * 2009-09-25 2010-03-03 北京天碁科技有限公司 一种多输入多输出信号检测方法和装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US8428169B1 (en) * 2008-07-30 2013-04-23 Marvell International Ltd. MIMO soft demodulation using hard-decision candidate selection

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003258762A (ja) * 2002-03-05 2003-09-12 Sharp Corp Ｏｆｄｍ復調装置
JP2008244592A (ja) * 2007-03-26 2008-10-09 Nippon Telegr & Teleph Corp <Ntt> ビタビ復号器
CN101217355A (zh) * 2008-01-11 2008-07-09 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
CN101540752A (zh) * 2008-03-18 2009-09-23 卓胜微电子（上海）有限公司 Qam软解调方法
CN101656594A (zh) * 2009-09-23 2010-02-24 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
CN101662341A (zh) * 2009-09-25 2010-03-03 北京天碁科技有限公司 一种多输入多输出信号检测方法和装置

Also Published As

Publication number Publication date
JP2012249076A (ja) 2012-12-13
JP5689365B2 (ja) 2015-03-25
US8750433B2 (en) 2014-06-10
CN102801677A (zh) 2012-11-28
US20120300883A1 (en) 2012-11-29

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Termination date: 20210331