CN100433746C - 产生同步脉冲的方法、产生同步脉冲的设备和一种接收机 - Google Patents
产生同步脉冲的方法、产生同步脉冲的设备和一种接收机 Download PDFInfo
- Publication number
- CN100433746C CN100433746C CNB2004100368791A CN200410036879A CN100433746C CN 100433746 C CN100433746 C CN 100433746C CN B2004100368791 A CNB2004100368791 A CN B2004100368791A CN 200410036879 A CN200410036879 A CN 200410036879A CN 100433746 C CN100433746 C CN 100433746C
- Authority
- CN
- China
- Prior art keywords
- signal
- sampling
- lock
- out pulse
- guard space
- 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 - Lifetime
Links
- 230000004044 response Effects 0.000 claims abstract description 7
- 238000005070 sampling Methods 0.000 claims description 85
- 238000000034 method Methods 0.000 claims description 13
- 238000001914 filtration Methods 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 description 8
- 239000002131 composite material Substances 0.000 description 7
- 230000006870 function Effects 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 6
- 230000003044 adaptive effect Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000014509 gene expression Effects 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000035508 accumulation Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 230000001934 delay Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005314 correlation function Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000010076 replication Effects 0.000 description 1
- 230000001052 transient 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
- H04L27/2655—Synchronisation arrangements
- H04L27/2662—Symbol 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
- H04L27/2678—Blind, i.e. without using known symbols using cyclostationarities, e.g. cyclic prefix or postfix
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Noise Elimination (AREA)
Abstract
Description
Claims (10)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03252484.5 | 2003-04-17 | ||
EP03252484A EP1469647B1 (en) | 2003-04-17 | 2003-04-17 | OFDM symbol synchronisation |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1538699A CN1538699A (zh) | 2004-10-20 |
CN100433746C true CN100433746C (zh) | 2008-11-12 |
Family
ID=32892990
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2004100368791A Expired - Lifetime CN100433746C (zh) | 2003-04-17 | 2004-04-16 | 产生同步脉冲的方法、产生同步脉冲的设备和一种接收机 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7706488B2 (zh) |
EP (1) | EP1469647B1 (zh) |
JP (1) | JP4383949B2 (zh) |
CN (1) | CN100433746C (zh) |
DE (1) | DE60311067T2 (zh) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4520825B2 (ja) * | 2004-11-09 | 2010-08-11 | 日本放送協会 | ガードインターバル検出装置およびガードインターバル検出方法、並びに、周波数オフセット検出装置 |
US8675631B2 (en) | 2005-03-10 | 2014-03-18 | Qualcomm Incorporated | Method and system for achieving faster device operation by logical separation of control information |
US8165167B2 (en) | 2005-03-10 | 2012-04-24 | Qualcomm Incorporated | Time tracking for a communication system |
US8223623B2 (en) * | 2005-03-28 | 2012-07-17 | Qualcomm Incorporated | Timing and frequency acquisition for OFDM systems |
EP1875697B1 (en) * | 2005-04-21 | 2012-08-15 | TELEFONAKTIEBOLAGET LM ERICSSON (publ) | Initial parameter estimation in ofdm systems |
US7602852B2 (en) | 2005-04-21 | 2009-10-13 | Telefonaktiebolaget L M Ericsson (Publ) | Initial parameter estimation in OFDM systems |
TWI293843B (en) * | 2005-07-28 | 2008-02-21 | Ind Tech Res Inst | Synchronization method and apparatus for ofdm systems |
US7623607B2 (en) * | 2005-10-31 | 2009-11-24 | Qualcomm Incorporated | Methods and apparatus for determining timing in a wireless communication system |
US8948329B2 (en) | 2005-12-15 | 2015-02-03 | Qualcomm Incorporated | Apparatus and methods for timing recovery in a wireless transceiver |
CN101563900B (zh) | 2006-10-16 | 2012-07-18 | 皇家飞利浦电子股份有限公司 | 确定ofdm信号的符号同步信息的方法及其装置 |
US7773683B2 (en) * | 2007-08-31 | 2010-08-10 | Industrial Technology Research Institute | Method and apparatus for ICI cancellation in communication systems |
JP4645679B2 (ja) * | 2008-05-12 | 2011-03-09 | 三菱電機株式会社 | クロック信号再生装置及び受信装置並びにクロック信号再生方法 |
CN101594189B (zh) * | 2008-05-27 | 2012-09-05 | 中兴通讯股份有限公司 | 一种帧同步信号的传输方法及接收装置 |
KR20120095408A (ko) | 2009-10-30 | 2012-08-28 | 뱅거 유니버시티 | 광 주파수 분할 멀티플렉싱 송신 시스템들에서의 동기화 프로세스 |
US8744026B2 (en) * | 2010-10-13 | 2014-06-03 | Telefonakktiebolaget Lm Ericsson (Publ) | Method and apparatus for interference suppression using a reduced-complexity joint detection |
RU2445727C1 (ru) * | 2011-02-28 | 2012-03-20 | Федеральное государственное унитарное предприятие "Научно-производственное объединение автоматики имени академика Н.А. Семихатова" | Перестраиваемый формирователь синхроимпульсов |
JP6205829B2 (ja) * | 2013-05-09 | 2017-10-04 | 富士通株式会社 | 無線信号受信同期方法、無線信号受信装置及び無線システム |
JP6422421B2 (ja) * | 2015-02-12 | 2018-11-14 | 三菱電機株式会社 | 同期タイミング制御装置、同期タイミング制御方法、及び受信機 |
US11018843B2 (en) | 2019-04-04 | 2021-05-25 | Veoneer Us, Inc. | Sensor communication control shaped for EMC compliance |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1258143A (zh) * | 1998-11-06 | 2000-06-28 | 松下电器产业株式会社 | 正交频分复用通信装置及正交频分复用通信方法 |
CN1286544A (zh) * | 1999-08-27 | 2001-03-07 | 三菱电机株式会社 | 正交频分复用帧同步 |
CN1336001A (zh) * | 1999-08-27 | 2002-02-13 | 三菱电机株式会社 | 同步脉冲产生方法及ofdm信号接收方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5991289A (en) * | 1997-08-05 | 1999-11-23 | Industrial Technology Research Institute | Synchronization method and apparatus for guard interval-based OFDM signals |
US6505032B1 (en) * | 2000-05-26 | 2003-01-07 | Xtremespectrum, Inc. | Carrierless ultra wideband wireless signals for conveying application data |
US6539063B1 (en) * | 1999-02-18 | 2003-03-25 | Ibiquity Digital Corporation | System and method for recovering symbol timing offset and carrier frequency error in an OFDM digital audio broadcast system |
-
2003
- 2003-04-17 DE DE60311067T patent/DE60311067T2/de not_active Expired - Lifetime
- 2003-04-17 EP EP03252484A patent/EP1469647B1/en not_active Expired - Lifetime
-
2004
- 2004-04-15 US US10/824,395 patent/US7706488B2/en active Active
- 2004-04-16 CN CNB2004100368791A patent/CN100433746C/zh not_active Expired - Lifetime
- 2004-04-19 JP JP2004123356A patent/JP4383949B2/ja not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1258143A (zh) * | 1998-11-06 | 2000-06-28 | 松下电器产业株式会社 | 正交频分复用通信装置及正交频分复用通信方法 |
CN1286544A (zh) * | 1999-08-27 | 2001-03-07 | 三菱电机株式会社 | 正交频分复用帧同步 |
CN1336001A (zh) * | 1999-08-27 | 2002-02-13 | 三菱电机株式会社 | 同步脉冲产生方法及ofdm信号接收方法 |
Also Published As
Publication number | Publication date |
---|---|
US7706488B2 (en) | 2010-04-27 |
EP1469647A1 (en) | 2004-10-20 |
CN1538699A (zh) | 2004-10-20 |
EP1469647B1 (en) | 2007-01-10 |
DE60311067D1 (de) | 2007-02-22 |
JP2004343732A (ja) | 2004-12-02 |
DE60311067T2 (de) | 2007-08-16 |
JP4383949B2 (ja) | 2009-12-16 |
US20040208269A1 (en) | 2004-10-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN100433746C (zh) | 产生同步脉冲的方法、产生同步脉冲的设备和一种接收机 | |
EP1949636B1 (en) | Synchronisation in a multicarrier receiver with guard interval carrelation | |
CN101507219B (zh) | 数据符号的时间误差估计方法和系统 | |
CN1110148C (zh) | 正交频分多路复用接收机的均衡方法和均衡器 | |
JP3892043B2 (ja) | 多重搬送波信号の受信機の時間的同期方法とその装置 | |
CN102075486A (zh) | 一种ofdm系统的同步方法 | |
CN101833954B (zh) | 一种实现丢包隐藏的方法和装置 | |
CN1123997C (zh) | 正交频分多路复用接收机的均衡方法和均衡器 | |
CN1391400A (zh) | 有效估计码元定时偏移的正交频分复用接收系统及其方法 | |
KR100970363B1 (ko) | 무선 통신 시스템에 있어서 타이밍을 결정하는 방법 및장치 | |
CN108881092B (zh) | 一种基于5g通信网络的频偏估计方法及系统 | |
CN101887723B (zh) | 一种对基音周期进行微调的方法和装置 | |
US5247470A (en) | Method and apparatus for estimating signal components of a filter output | |
CN101414827B (zh) | 用于估算采样频偏的方法和装置,及其采样定时恢复回路 | |
CN100596127C (zh) | 在符号定时误差下的时域信道估计方法 | |
CN101938347B (zh) | 定时误差提取装置及方法 | |
CN101425848A (zh) | 一种单载波频域均衡系统中的定时估计方法 | |
CN110351210A (zh) | 一种针对ofdm前导通信信号的信道估计改进方法 | |
CN101459642B (zh) | 适用于通信系统检测同步信号的方法与装置 | |
CN107276943B (zh) | 定时同步方法、装置和系统 | |
CN107294889B (zh) | 载波同步方法和装置 | |
CN107277913B (zh) | 定时同步方法、装置和系统 | |
CN107276940B (zh) | 定时同步方法、装置和系统 | |
CN114826860A (zh) | 一种改进的电力线通信定时同步方法 | |
CN107276956B (zh) | 载波同步方法和装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: TCL + ALCATEL MOBILE PHONES LT Free format text: FORMER OWNER: MISSUBISHI ELECTRIC CORP. Effective date: 20150727 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20150727 Address after: Room 19, building third, central, 33 Guangdong Road, Tsim Sha Tsui, Kowloon, Hongkong, China Patentee after: TCL COMMUNICATION TECHNOLOGY HOLDINGS Ltd. Address before: Tokyo, Japan Patentee before: MITSUBISHI ELECTRIC Corp. |
|
TR01 | Transfer of patent right |
Effective date of registration: 20190516 Address after: Room OMC, Reef 1, Wickham, Rhode Town, Tortola Island, British Virgin Islands Patentee after: Yisheng Management Consulting Co.,Ltd. Address before: Room 19, building third, central, 33 Guangdong Road, Tsim Sha Tsui, Kowloon, Hongkong, China Patentee before: TCL COMMUNICATION TECHNOLOGY HOLDINGS Ltd. |
|
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20201221 Address after: Room 19, building third, central, 33 Guangdong Road, Tsim Sha Tsui, Kowloon, Hongkong, China Patentee after: TCL COMMUNICATION TECHNOLOGY HOLDINGS Ltd. Address before: Room OMC, Reef 1, Wickham, Rhode Town, Tortola Island, British Virgin Islands Patentee before: Yisheng Management Consulting Co.,Ltd. |
|
TR01 | Transfer of patent right | ||
CX01 | Expiry of patent term |
Granted publication date: 20081112 |
|
CX01 | Expiry of patent term |