JP4782113B2 - Ofdm信号のためのfft搬送波周波数オフセット推定 - Google Patents
Ofdm信号のためのfft搬送波周波数オフセット推定 Download PDFInfo
- Publication number
- JP4782113B2 JP4782113B2 JP2007517313A JP2007517313A JP4782113B2 JP 4782113 B2 JP4782113 B2 JP 4782113B2 JP 2007517313 A JP2007517313 A JP 2007517313A JP 2007517313 A JP2007517313 A JP 2007517313A JP 4782113 B2 JP4782113 B2 JP 4782113B2
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- JP
- Japan
- Prior art keywords
- ofdm signal
- carrier frequency
- frequency offset
- guard band
- output
- Prior art date
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- 238000000034 method Methods 0.000 claims description 14
- 230000003595 spectral effect Effects 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000004590 computer program Methods 0.000 claims description 6
- 239000000969 carrier Substances 0.000 description 11
- 238000004364 calculation method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000009466 transformation 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
- H04L27/2655—Synchronisation arrangements
- H04L27/2657—Carrier synchronisation
-
- 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
- H04L27/2655—Synchronisation arrangements
- H04L27/2668—Details of algorithms
- H04L27/2673—Details of algorithms characterised by synchronisation parameters
- H04L27/2676—Blind, i.e. without using known symbols
-
- 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
- H04L27/2655—Synchronisation arrangements
- H04L27/2668—Details of algorithms
- H04L27/2681—Details of algorithms characterised by constraints
- H04L27/2685—Speed of convergence
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Circuits Of Receivers In General (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/FI2004/000390 WO2006000614A1 (en) | 2004-06-28 | 2004-06-28 | Fft carrier frequency offset estimation for ofdm signal |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2008504726A JP2008504726A (ja) | 2008-02-14 |
| JP2008504726A5 JP2008504726A5 (enExample) | 2009-11-12 |
| JP4782113B2 true JP4782113B2 (ja) | 2011-09-28 |
Family
ID=35781579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007517313A Expired - Fee Related JP4782113B2 (ja) | 2004-06-28 | 2004-06-28 | Ofdm信号のためのfft搬送波周波数オフセット推定 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US8275052B2 (enExample) |
| EP (1) | EP1762066B1 (enExample) |
| JP (1) | JP4782113B2 (enExample) |
| CN (1) | CN1993954B (enExample) |
| TW (1) | TWI279990B (enExample) |
| WO (1) | WO2006000614A1 (enExample) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8259828B2 (en) * | 2008-02-12 | 2012-09-04 | Mediatek Inc. | Sub-carrier alignment mechanism for OFDM multi-carrier systems |
| US8891350B2 (en) | 2008-07-07 | 2014-11-18 | Mediatek Inc. | Method and apparatus of data transmission over guard sub-carriers in multi-carrier OFDM systems |
| BR112014003231A2 (pt) * | 2011-08-12 | 2017-03-14 | Entropic Communications Inc | método para selecionar bandas de frequência em dispositivo de rede para várias redes nativas |
| US9699667B2 (en) * | 2012-01-09 | 2017-07-04 | Qualcomm Incorporated | Systems and methods to transmit configuration change messages between an access point and a station |
| CN102904843B (zh) * | 2012-08-02 | 2015-04-22 | 京信通信系统(广州)有限公司 | 频偏估计的方法及装置 |
| TWI467976B (zh) * | 2012-09-28 | 2015-01-01 | Mstar Semiconductor Inc | 多載波通信系統的頻率偏補估計方法與相關裝置 |
| EP2720427A1 (en) * | 2012-10-12 | 2014-04-16 | ST-Ericsson SA | Estimation of CFO based on relative values of frequency bins corresponding to used subcarriers of received preamble symbols for OFDM systems |
| US9350590B2 (en) * | 2013-10-25 | 2016-05-24 | Texas Instruments Incorporated | Method, system and apparatus for carrier frequency offset correction and channel estimation |
| US20200374079A1 (en) * | 2019-08-15 | 2020-11-26 | Andrey Chervyakov | Single tap and single frequency network (sfn) high-speed train (hst) technologies |
| US10999116B1 (en) | 2019-10-17 | 2021-05-04 | Sirius Xm Radio Inc. | Dynamic trigger compensation in OFDM systems |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0795175A (ja) * | 1993-09-27 | 1995-04-07 | Toshiba Corp | Ofdm信号復調装置 |
| JPH07143097A (ja) * | 1993-11-16 | 1995-06-02 | Toshiba Corp | Ofdm同期復調回路 |
| JPH10285135A (ja) * | 1997-04-04 | 1998-10-23 | Nippon Columbia Co Ltd | 周波数制御装置および方法、受信装置、ならびに、通信装置 |
| JPH10322303A (ja) * | 1997-05-15 | 1998-12-04 | Fujitsu Ten Ltd | 直交周波数分割多重方式用受信機 |
| JPH1198103A (ja) * | 1997-09-18 | 1999-04-09 | Nippon Columbia Co Ltd | 直交周波数分割多重信号発生装置、周波数制御装置および方法、受信装置ならびに通信装置および方法 |
| JPH11136208A (ja) * | 1997-10-31 | 1999-05-21 | Nippon Columbia Co Ltd | 周波数制御装置及び受信装置ならびに通信装置 |
| JP2000124873A (ja) * | 1998-10-14 | 2000-04-28 | Matsushita Electric Ind Co Ltd | Ofdm用送信装置および受信装置 |
| JP2003179571A (ja) * | 2001-12-10 | 2003-06-27 | Mitsubishi Electric Corp | 直交周波数分割多重信号受信装置 |
| JP2005269182A (ja) * | 2004-03-18 | 2005-09-29 | Mitsubishi Electric Corp | Ofdm信号受信装置 |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9625094D0 (en) | 1996-12-03 | 1997-01-22 | Ensigma Ltd | Apparatus and methods for measuring coarse frequency offset of a multi-carrier signal |
| US6650617B1 (en) * | 2000-02-22 | 2003-11-18 | Thomson Licensing S.A. | Reduced complexity FFT window synchronization for an orthogonal frequency division multiplexing system |
| US7012881B2 (en) | 2000-12-29 | 2006-03-14 | Samsung Electronic Co., Ltd. | Timing and frequency offset estimation scheme for OFDM systems by using an analytic tone |
| EP1391094A1 (en) * | 2001-05-31 | 2004-02-25 | Nortel Networks Limited | Apparatus and method for measuring sub-carrier frequencies and sub-carrier frequency offsets |
| CA2390253A1 (en) * | 2001-06-11 | 2002-12-11 | Unique Broadband Systems, Inc. | Ofdm multiple sub-channel communication system |
| TWI225335B (en) | 2001-09-24 | 2004-12-11 | Atheros Comm Inc | Post-FFT scaling to reduce multiple effects and fine-frequency offset estimation and calculation and use to improve communication system performance |
| US7139320B1 (en) * | 2001-10-11 | 2006-11-21 | Texas Instruments Incorporated | Method and apparatus for multicarrier channel estimation and synchronization using pilot sequences |
| US7039131B2 (en) * | 2002-08-02 | 2006-05-02 | Agere Systems Inc. | Carrier frequency offset estimation in a wireless communication system |
| TW583853B (en) * | 2002-08-16 | 2004-04-11 | Realtek Semiconductor Corp | Compensation method for synchronization of sampling frequency and carrier frequency in multi-carrier communication system and apparatus thereof |
| KR100576010B1 (ko) * | 2002-10-08 | 2006-05-02 | 삼성전자주식회사 | 직교주파수분할다중 통신시스템의 보호구간 삽입/제거장치 및 방법 |
| KR100488802B1 (ko) * | 2002-12-09 | 2005-05-12 | 한국전자통신연구원 | 직교 주파수 분할 다중화 무선 통신 시스템에서의 반송파주파수 오차와 샘플링 주파수 오차 추적 방법 및 그 장치 |
| CN1217503C (zh) * | 2003-05-01 | 2005-08-31 | 清华大学 | 无导频辅助的正交频分复用全数字同步跟踪方法及系统 |
| US20040228270A1 (en) * | 2003-05-13 | 2004-11-18 | Hou-Shin Chen | Method of processing an OFDM signal and OFDM receiver using the same |
| TWI235560B (en) * | 2003-10-31 | 2005-07-01 | Ind Tech Res Inst | Apparatus and method for synchronization of OFDM systems |
-
2004
- 2004-06-28 CN CN2004800436443A patent/CN1993954B/zh not_active Expired - Fee Related
- 2004-06-28 JP JP2007517313A patent/JP4782113B2/ja not_active Expired - Fee Related
- 2004-06-28 EP EP04742133A patent/EP1762066B1/en not_active Expired - Lifetime
- 2004-06-28 US US11/630,537 patent/US8275052B2/en not_active Expired - Fee Related
- 2004-06-28 WO PCT/FI2004/000390 patent/WO2006000614A1/en not_active Ceased
-
2005
- 2005-06-28 TW TW094121525A patent/TWI279990B/zh not_active IP Right Cessation
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0795175A (ja) * | 1993-09-27 | 1995-04-07 | Toshiba Corp | Ofdm信号復調装置 |
| JPH07143097A (ja) * | 1993-11-16 | 1995-06-02 | Toshiba Corp | Ofdm同期復調回路 |
| JPH10285135A (ja) * | 1997-04-04 | 1998-10-23 | Nippon Columbia Co Ltd | 周波数制御装置および方法、受信装置、ならびに、通信装置 |
| JPH10322303A (ja) * | 1997-05-15 | 1998-12-04 | Fujitsu Ten Ltd | 直交周波数分割多重方式用受信機 |
| JPH1198103A (ja) * | 1997-09-18 | 1999-04-09 | Nippon Columbia Co Ltd | 直交周波数分割多重信号発生装置、周波数制御装置および方法、受信装置ならびに通信装置および方法 |
| JPH11136208A (ja) * | 1997-10-31 | 1999-05-21 | Nippon Columbia Co Ltd | 周波数制御装置及び受信装置ならびに通信装置 |
| JP2000124873A (ja) * | 1998-10-14 | 2000-04-28 | Matsushita Electric Ind Co Ltd | Ofdm用送信装置および受信装置 |
| JP2003179571A (ja) * | 2001-12-10 | 2003-06-27 | Mitsubishi Electric Corp | 直交周波数分割多重信号受信装置 |
| JP2005269182A (ja) * | 2004-03-18 | 2005-09-29 | Mitsubishi Electric Corp | Ofdm信号受信装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1762066B1 (en) | 2012-12-12 |
| CN1993954A (zh) | 2007-07-04 |
| CN1993954B (zh) | 2013-01-02 |
| TWI279990B (en) | 2007-04-21 |
| US8275052B2 (en) | 2012-09-25 |
| EP1762066A1 (en) | 2007-03-14 |
| JP2008504726A (ja) | 2008-02-14 |
| US20090161771A1 (en) | 2009-06-25 |
| WO2006000614A1 (en) | 2006-01-05 |
| TW200623660A (en) | 2006-07-01 |
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