JP2008504726A5 - - Google Patents
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- Publication number
- JP2008504726A5 JP2008504726A5 JP2007517313A JP2007517313A JP2008504726A5 JP 2008504726 A5 JP2008504726 A5 JP 2008504726A5 JP 2007517313 A JP2007517313 A JP 2007517313A JP 2007517313 A JP2007517313 A JP 2007517313A JP 2008504726 A5 JP2008504726 A5 JP 2008504726A5
- Authority
- JP
- Japan
- Prior art keywords
- fft
- receiver
- offset
- frequency
- carrier
- 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.)
- Granted
Links
- 239000000969 carrier Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 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
- 238000005516 engineering process Methods 0.000 description 4
- 238000004590 computer program Methods 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 238000006243 chemical reaction 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
- 238000001514 detection method Methods 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
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 true JP2008504726A5 (enExample) | 2009-11-12 |
| JP4782113B2 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 |
Family Cites Families (23)
| 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 |
| JP3074103B2 (ja) * | 1993-11-16 | 2000-08-07 | 株式会社東芝 | Ofdm同期復調回路 |
| GB9625094D0 (en) | 1996-12-03 | 1997-01-22 | Ensigma Ltd | Apparatus and methods for measuring coarse frequency offset of a multi-carrier signal |
| JP3563231B2 (ja) | 1997-04-04 | 2004-09-08 | 株式会社デノン | 周波数制御装置および方法、受信装置、ならびに、通信装置 |
| JP3145054B2 (ja) * | 1997-05-15 | 2001-03-12 | 富士通テン株式会社 | 直交周波数分割多重方式用受信機 |
| JP3649560B2 (ja) * | 1997-09-18 | 2005-05-18 | 株式会社デノン | 直交周波数分割多重信号発生装置および方法、復調装置、通信装置、直交周波数分割多重信号発生プログラムが格納された記憶媒体および復調プログラムが格納された記憶媒体 |
| JP3586084B2 (ja) * | 1997-10-31 | 2004-11-10 | 株式会社デノン | 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 |
| 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 |
| JP3631200B2 (ja) * | 2001-12-10 | 2005-03-23 | 三菱電機株式会社 | 直交周波数分割多重信号受信装置 |
| 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 |
| JP4067505B2 (ja) * | 2004-03-18 | 2008-03-26 | 三菱電機株式会社 | Ofdm信号受信装置 |
-
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
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