CN101079864B - Ofdm接收机及均衡方法 - Google Patents
Ofdm接收机及均衡方法 Download PDFInfo
- Publication number
- CN101079864B CN101079864B CN2007101030697A CN200710103069A CN101079864B CN 101079864 B CN101079864 B CN 101079864B CN 2007101030697 A CN2007101030697 A CN 2007101030697A CN 200710103069 A CN200710103069 A CN 200710103069A CN 101079864 B CN101079864 B CN 101079864B
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- Prior art keywords
- main ripple
- signal
- disturbing wave
- circuit
- ofdm
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- 238000000034 method Methods 0.000 title claims description 6
- 238000012545 processing Methods 0.000 claims abstract description 18
- 238000001914 filtration Methods 0.000 claims description 8
- 239000000284 extract Substances 0.000 claims description 7
- 238000012937 correction Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 25
- 230000006866 deterioration Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 230000001902 propagating effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
-
- 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
- H04L27/2649—Demodulators
- H04L27/26524—Fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators in combination with other circuits for demodulation
- H04L27/26526—Fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators in combination with other circuits for demodulation with inverse FFT [IFFT] or inverse DFT [IDFT] demodulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] receiver or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/364—Delay profiles
-
- 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
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
- H04L27/261—Details of reference signals
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Discrete Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Quality & Reliability (AREA)
- Electromagnetism (AREA)
- Noise Elimination (AREA)
Abstract
Description
Claims (8)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006144141A JP4664234B2 (ja) | 2006-05-24 | 2006-05-24 | Ofdm受信機 |
JP2006144141 | 2006-05-24 | ||
JP2006-144141 | 2006-05-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101079864A CN101079864A (zh) | 2007-11-28 |
CN101079864B true CN101079864B (zh) | 2011-07-06 |
Family
ID=38749473
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNA200610161890XA Pending CN101079862A (zh) | 2006-05-24 | 2006-12-05 | Ofdm接收机 |
CN2007101030697A Expired - Fee Related CN101079864B (zh) | 2006-05-24 | 2007-05-23 | Ofdm接收机及均衡方法 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNA200610161890XA Pending CN101079862A (zh) | 2006-05-24 | 2006-12-05 | Ofdm接收机 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7706479B2 (zh) |
JP (1) | JP4664234B2 (zh) |
KR (1) | KR100869432B1 (zh) |
CN (2) | CN101079862A (zh) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3841819B1 (ja) * | 2005-11-08 | 2006-11-08 | 三菱電機株式会社 | 直交周波数分割多重信号の受信装置および受信方法 |
JP4916846B2 (ja) * | 2006-11-20 | 2012-04-18 | シャープ株式会社 | Ofdm復調装置及びofdm復調方法 |
EP2131512B1 (en) * | 2007-03-27 | 2014-06-04 | Panasonic Corporation | OFDM reception device, OFDM reception method, OFDM reception circuit, integrated circuit and program |
EP2043314A1 (en) * | 2007-09-25 | 2009-04-01 | Thomson Licensing, Inc. | A self-adaptive frequency interpolator for use in a multi-carrier receiver |
JP4362142B2 (ja) * | 2007-10-05 | 2009-11-11 | Okiセミコンダクタ株式会社 | 遅延プロファイル生成器 |
JP2009111749A (ja) * | 2007-10-30 | 2009-05-21 | Sony Corp | 受信装置、受信方法、およびプログラム |
JP4412387B2 (ja) * | 2007-10-30 | 2010-02-10 | ソニー株式会社 | 受信装置、受信方法、およびプログラム |
CN101521652B (zh) * | 2008-02-29 | 2013-02-06 | 索尼株式会社 | 接收设备和接收方法 |
JP5172950B2 (ja) * | 2008-04-12 | 2013-03-27 | パイオニア株式会社 | 受信装置及び受信方法 |
JP2009278448A (ja) * | 2008-05-15 | 2009-11-26 | Fujitsu Microelectronics Ltd | Ofdm受信機およびofdm受信方法 |
JP4623180B2 (ja) * | 2008-09-19 | 2011-02-02 | ソニー株式会社 | 受信装置、受信方法、およびプログラム |
JP5362303B2 (ja) * | 2008-09-26 | 2013-12-11 | 株式会社エヌ・ティ・ティ・ドコモ | 受信装置及び受信方法 |
JP5175761B2 (ja) * | 2009-02-12 | 2013-04-03 | 株式会社東芝 | Ofdm受信装置 |
JP5644475B2 (ja) * | 2010-02-18 | 2014-12-24 | 富士通株式会社 | 受信装置 |
JP5565165B2 (ja) * | 2010-07-21 | 2014-08-06 | 富士通株式会社 | Ofdm通信受信装置 |
CN101895503B (zh) * | 2010-07-26 | 2014-04-30 | 中兴通讯股份有限公司 | 一种用于lte基站侧的信号处理方法及装置 |
CN105357164B (zh) * | 2010-09-09 | 2020-11-17 | 华为技术有限公司 | 多载波接收机、多载波发射机及多载波收发系统 |
JP5689271B2 (ja) * | 2010-10-04 | 2015-03-25 | パイオニア株式会社 | Ofdm受信装置 |
JP5518261B2 (ja) * | 2011-06-17 | 2014-06-11 | 三菱電機株式会社 | 等化装置及び等化方法 |
DE112014006186B4 (de) * | 2014-01-17 | 2020-12-31 | Mitsubishi Electric Corporation | Empfangsvorrichtung und Empfangsverfahren |
EP3236626B1 (en) * | 2016-04-21 | 2020-09-23 | Institut Mines Telecom / Telecom Bretagne | Filter for linear modulation based communication systems |
JP6289598B2 (ja) * | 2016-12-20 | 2018-03-07 | 株式会社デンソーテン | 受信装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1451237A (zh) * | 2000-07-18 | 2003-10-22 | 汤姆森许可贸易公司 | 确定ofdm型信号参数的方法及其接收机 |
WO2004100413A1 (ja) * | 2003-05-12 | 2004-11-18 | Mitsubishi Denki Kabushiki Kaisha | 復調装置及び復調方法 |
CN1617533A (zh) * | 2003-11-11 | 2005-05-18 | 株式会社Ntt都科摩 | Ofdm发射机与ofdm接收机 |
US20050213680A1 (en) * | 2004-03-26 | 2005-09-29 | Atungsiri Samuel A | Receiver |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2911861B2 (ja) * | 1997-11-26 | 1999-06-23 | 株式会社次世代デジタルテレビジョン放送システム研究所 | Ofdm用受信装置 |
JP3981898B2 (ja) * | 1998-02-20 | 2007-09-26 | ソニー株式会社 | 信号受信装置および方法、並びに記録媒体 |
JP3146196B2 (ja) * | 1999-03-17 | 2001-03-12 | 株式会社次世代デジタルテレビジョン放送システム研究所 | Ofdm復調装置 |
JP4465797B2 (ja) | 2000-04-07 | 2010-05-19 | ソニー株式会社 | 受信装置及び受信方法 |
JP2002026861A (ja) | 2000-07-11 | 2002-01-25 | Sony Corp | 復調装置及び復調方法 |
JP3606448B2 (ja) | 2000-08-21 | 2005-01-05 | 株式会社ケンウッド | 直交周波数分割多重信号受信装置及び直交周波数分割多重信号受信方法 |
WO2002017529A1 (en) | 2000-08-21 | 2002-02-28 | Kabushiki Kaisha Kenwood | Orthogonal frequency division multiplexed signal receiving apparatus and orthogonal frequency division multiplexed signal receiving method |
GB2376855A (en) * | 2001-06-20 | 2002-12-24 | Sony Uk Ltd | Determining symbol synchronisation in an OFDM receiver in response to one of two impulse response estimates |
JP3814182B2 (ja) * | 2001-10-17 | 2006-08-23 | 国立大学法人 北海道大学 | 無線装置およびアダプティブアレイ処理方法 |
JP4523294B2 (ja) | 2003-02-10 | 2010-08-11 | 三菱電機株式会社 | 通信装置 |
US7433433B2 (en) * | 2003-11-13 | 2008-10-07 | Telefonaktiebolaget L M Ericsson (Publ) | Channel estimation by adaptive interpolation |
JP4173460B2 (ja) * | 2004-03-29 | 2008-10-29 | 三洋電機株式会社 | デジタル放送受信装置 |
CN1842982A (zh) * | 2004-05-07 | 2006-10-04 | 松下电器产业株式会社 | 正交频分复用接收装置及正交频分复用接收方法 |
-
2006
- 2006-05-24 JP JP2006144141A patent/JP4664234B2/ja not_active Expired - Fee Related
- 2006-11-16 US US11/560,508 patent/US7706479B2/en not_active Expired - Fee Related
- 2006-12-05 CN CNA200610161890XA patent/CN101079862A/zh active Pending
- 2006-12-08 KR KR1020060124490A patent/KR100869432B1/ko not_active IP Right Cessation
-
2007
- 2007-05-23 CN CN2007101030697A patent/CN101079864B/zh not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1451237A (zh) * | 2000-07-18 | 2003-10-22 | 汤姆森许可贸易公司 | 确定ofdm型信号参数的方法及其接收机 |
WO2004100413A1 (ja) * | 2003-05-12 | 2004-11-18 | Mitsubishi Denki Kabushiki Kaisha | 復調装置及び復調方法 |
CN1617533A (zh) * | 2003-11-11 | 2005-05-18 | 株式会社Ntt都科摩 | Ofdm发射机与ofdm接收机 |
US20050213680A1 (en) * | 2004-03-26 | 2005-09-29 | Atungsiri Samuel A | Receiver |
Also Published As
Publication number | Publication date |
---|---|
CN101079862A (zh) | 2007-11-28 |
CN101079864A (zh) | 2007-11-28 |
US20070274406A1 (en) | 2007-11-29 |
JP4664234B2 (ja) | 2011-04-06 |
KR100869432B1 (ko) | 2008-11-21 |
US7706479B2 (en) | 2010-04-27 |
KR20070113089A (ko) | 2007-11-28 |
JP2007318315A (ja) | 2007-12-06 |
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
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ASS | Succession or assignment of patent right |
Owner name: FUJITSU MICROELECTRONICS CO., LTD. Free format text: FORMER OWNER: FUJITSU LIMITED Effective date: 20081024 |
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C41 | Transfer of patent application or patent right or utility model | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20081024 Address after: Tokyo, Japan, Japan Applicant after: Fujitsu Microelectronics Ltd. Address before: Kanagawa Applicant before: Fujitsu Ltd. |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
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Owner name: SUOSI FUTURE CO., LTD. Free format text: FORMER OWNER: FUJITSU SEMICONDUCTOR CO., LTD. Effective date: 20150512 |
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20150512 Address after: Kanagawa Patentee after: Co., Ltd. Suo Si future Address before: Kanagawa Patentee before: Fujitsu Semiconductor Co., Ltd. |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110706 Termination date: 20180523 |
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CF01 | Termination of patent right due to non-payment of annual fee |