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 PDFInfo
- 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
- Authority
- CN
- China
- Prior art keywords
- angle value
- soft
- unit
- decision
- likelihood angle
- 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
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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)
Abstract
Description
Claims (11)
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 (zh) |
JP (1) | JP5689365B2 (zh) |
CN (1) | CN102801677B (zh) |
Families Citing this family (6)
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 |
CN106471761B (zh) * | 2014-06-24 | 2019-05-21 | 株式会社索思未来 | 接口装置及具备该接口装置的接收装置 |
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 |
Citations (6)
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)
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 |
-
2011
- 2011-05-27 JP JP2011119165A patent/JP5689365B2/ja not_active Expired - Fee Related
-
2012
- 2012-03-31 CN CN201210098779.6A patent/CN102801677B/zh not_active Expired - Fee Related
- 2012-04-09 US US13/442,443 patent/US8750433B2/en not_active Expired - Fee Related
Patent Citations (6)
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 |
---|---|
US8750433B2 (en) | 2014-06-10 |
JP2012249076A (ja) | 2012-12-13 |
US20120300883A1 (en) | 2012-11-29 |
CN102801677A (zh) | 2012-11-28 |
JP5689365B2 (ja) | 2015-03-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
ASS | Succession or assignment of patent right |
Owner name: SUOSI FUTURE CO., LTD. Free format text: FORMER OWNER: FUJITSU SEMICONDUCTOR CO., LTD. Effective date: 20150605 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20150605 Address after: Kanagawa Applicant after: Fujitsu Ltd. Applicant after: Co., Ltd. Suo Si future Address before: Kanagawa Applicant before: Fujitsu Ltd. Applicant before: Fujitsu Semiconductor Co., Ltd. |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161214 Termination date: 20210331 |