BRPI0406716A - Processo de sincronização no domìnio de tempo e frequência de múltiplos equipamentos em um sistema de transmissão com modulação da ofdm - Google Patents
Processo de sincronização no domìnio de tempo e frequência de múltiplos equipamentos em um sistema de transmissão com modulação da ofdmInfo
- Publication number
- BRPI0406716A BRPI0406716A BR0406716-9A BRPI0406716A BRPI0406716A BR PI0406716 A BRPI0406716 A BR PI0406716A BR PI0406716 A BRPI0406716 A BR PI0406716A BR PI0406716 A BRPI0406716 A BR PI0406716A
- Authority
- BR
- Brazil
- Prior art keywords
- signals
- frequency domain
- transmission system
- time
- multiple devices
- Prior art date
Links
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
- H04L27/2626—Arrangements specific to the transmitter only
- H04L27/2627—Modulators
- H04L27/264—Pulse-shaped multi-carrier, i.e. not using rectangular window
- H04L27/26416—Filtering per subcarrier, e.g. filterbank multicarrier [FBMC]
-
- 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
- H04L27/26534—Pulse-shaped multi-carrier, i.e. not using rectangular window
- H04L27/2654—Filtering per subcarrier, e.g. filterbank multicarrier [FBMC]
-
- 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
- H04L27/2669—Details of algorithms characterised by the domain of operation
- H04L27/2671—Time domain
-
- 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
- H04L27/2669—Details of algorithms characterised by the domain of operation
- H04L27/2672—Frequency domain
-
- 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
- H04L27/2675—Pilot or known symbols
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Mobile Radio Communication Systems (AREA)
- Noise Elimination (AREA)
- Transmitters (AREA)
Abstract
"PROCESSO DE SINCRONIZAçãO NO DOMìNIO DE TEMPO E FREQuêNCIA DE MúLTIPLOS EQUIPAMENTOS EM UM SISTEMA DE TRANSMISSãO COM MODULAçãO DE OFDM". Permite a sincronização de vários usuários por meio de aperfeiçoamento da estimativa da partida dos símbolos de OFDM e aperfeiçoamento da estimativa de erro de freq³ência em ambientes ruidosos ou em canais seletivos de freq³ência. é caracterizado pela decomposição dos sinais recebidos x(n), que contém dados e seq³ências de sincronização, em faixas de freq³ência (M) e a aplicação de algoritmos de sincronização em uma das ditas faixas.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES200300052A ES2212744B2 (es) | 2003-01-10 | 2003-01-10 | Procedimiento de sincronizacion en el dominio del tiempo y de la frecuencia de multiples equipos en un sistema de transmision con modulacion ofdm. |
PCT/ES2004/000003 WO2004064278A1 (es) | 2003-01-10 | 2004-01-08 | Procedimiento de sincronización en el dominio del tiempo y de la frecuencia de múltiples equipos e nun sistema de transmisión con modulación ofdm |
Publications (1)
Publication Number | Publication Date |
---|---|
BRPI0406716A true BRPI0406716A (pt) | 2005-12-20 |
Family
ID=32695828
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR0406716-9A BRPI0406716A (pt) | 2003-01-10 | 2004-01-08 | Processo de sincronização no domìnio de tempo e frequência de múltiplos equipamentos em um sistema de transmissão com modulação da ofdm |
Country Status (17)
Country | Link |
---|---|
US (2) | US8385434B2 (pt) |
EP (1) | EP1583267B1 (pt) |
JP (1) | JP2006515735A (pt) |
KR (1) | KR101083795B1 (pt) |
CN (1) | CN1723648A (pt) |
AT (1) | ATE389267T1 (pt) |
AU (1) | AU2004204595A1 (pt) |
BR (1) | BRPI0406716A (pt) |
CA (1) | CA2512920A1 (pt) |
DE (1) | DE602004012381T2 (pt) |
EA (1) | EA007858B1 (pt) |
ES (2) | ES2212744B2 (pt) |
IL (1) | IL169272A0 (pt) |
MX (1) | MXPA05006896A (pt) |
PT (1) | PT1583267E (pt) |
TW (1) | TWI256790B (pt) |
WO (1) | WO2004064278A1 (pt) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7564775B2 (en) | 2005-04-29 | 2009-07-21 | Qualcomm, Incorporated | Timing control in orthogonal frequency division multiplex systems based on effective signal-to-noise ratio |
CN100417048C (zh) * | 2005-10-18 | 2008-09-03 | 中兴通讯股份有限公司 | 同步码分多址***中提高同步检测性能的方法与装置 |
ES2326054B1 (es) * | 2006-04-04 | 2010-07-05 | Diseño De Sistemas En Silicio S.A. | Procedimiento de transmision simultaneo en tiempo y frecuencia de multiples comunicaciones de datos mediante modulaciones ofdm. |
KR100843340B1 (ko) * | 2006-09-29 | 2008-07-03 | 한국전자통신연구원 | 무선통신 시스템의 gcl 시퀀스 검출 장치 및 그 방법 |
WO2008146347A1 (ja) | 2007-05-25 | 2008-12-04 | Panasonic Corporation | マルチキャリア送信装置及びマルチキャリア受信装置 |
CN101083508B (zh) * | 2007-07-19 | 2010-06-02 | 清华大学 | 基于低峰谷比序列传输的ofdm调制***性能测试方法 |
US8194799B2 (en) * | 2009-03-30 | 2012-06-05 | King Fahd University of Pertroleum & Minerals | Cyclic prefix-based enhanced data recovery method |
CN102571670B (zh) * | 2012-01-12 | 2014-08-20 | 北京邮电大学 | 用于ofdm***的多维联合编码调制的方法及装置 |
EP2775682B8 (en) | 2013-03-04 | 2019-07-24 | Rohde & Schwarz GmbH & Co. KG | Measuring device and method for frame start detection |
CN103441734B (zh) * | 2013-07-02 | 2016-03-23 | 重庆邮电大学 | Mdft滤波器组多载频调制***及其优化设计方法 |
US9608905B1 (en) | 2013-07-19 | 2017-03-28 | Marvell International Ltd. | Packet preamble and symbol boundary detection |
KR101958791B1 (ko) | 2016-11-09 | 2019-03-15 | 엘지전자 주식회사 | 동기화 신호 전송 방법 및 이를 위한 장치 |
RU191451U1 (ru) * | 2019-04-04 | 2019-08-06 | Публичное акционерное общество "Научно-производственное объединение "Алмаз" имени академика А.А. Расплетина" (ПАО "НПО "Алмаз") | Синхронизатор |
CN112054820B (zh) * | 2019-06-06 | 2021-08-17 | 天地融科技股份有限公司 | 利用电力线进行数据发送和接收的方法及设备 |
Family Cites Families (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5448593A (en) | 1984-03-06 | 1995-09-05 | Cyplex Corporation | Frequency hopping time-diversity communications systems and transceivers for local area networks |
GB9020170D0 (en) * | 1990-09-14 | 1990-10-24 | Indep Broadcasting Authority | Orthogonal frequency division multiplexing |
JP3120931B2 (ja) * | 1993-09-10 | 2000-12-25 | 松下電器産業株式会社 | 同期加算装置 |
JP3420642B2 (ja) * | 1994-08-26 | 2003-06-30 | 株式会社東芝 | 伝送方式 |
US6334219B1 (en) * | 1994-09-26 | 2001-12-25 | Adc Telecommunications Inc. | Channel selection for a hybrid fiber coax network |
GB9510127D0 (en) * | 1995-05-20 | 1995-08-02 | West End System Corp | CATV Data transmission system |
JPH09130362A (ja) * | 1995-10-30 | 1997-05-16 | Sony Corp | 受信装置および受信方法 |
JP3511798B2 (ja) * | 1996-05-08 | 2004-03-29 | 三菱電機株式会社 | ディジタル放送受信機 |
US5732113A (en) * | 1996-06-20 | 1998-03-24 | Stanford University | Timing and frequency synchronization of OFDM signals |
JP3848421B2 (ja) * | 1997-01-31 | 2006-11-22 | 秀男 村上 | 離散時間信号に対する多重化装置および多重化システムと、離散時間信号に対する多重化方法 |
JP3529970B2 (ja) * | 1997-03-04 | 2004-05-24 | 株式会社東芝 | 直交変換を使用した信号伝送システムとその信号伝送装置 |
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 |
US6058101A (en) * | 1997-06-11 | 2000-05-02 | Industrial Technology Research Institute | Synchronization method and system for a digital receiver |
US6487235B2 (en) * | 1998-08-24 | 2002-11-26 | At&T Wireless Services, Inc. | Delay compensation |
JP2000286821A (ja) * | 1999-01-29 | 2000-10-13 | Matsushita Electric Ind Co Ltd | Ofdm通信装置 |
US6930995B1 (en) * | 1999-06-23 | 2005-08-16 | Cingular Wireless Ii, Llc | Apparatus and method for synchronization in a multiple-carrier communication system by observing a plurality of synchronization indicators |
US6628735B1 (en) * | 1999-12-22 | 2003-09-30 | Thomson Licensing S.A. | Correction of a sampling frequency offset in an orthogonal frequency division multiplexing system |
GB2361607A (en) * | 2000-04-17 | 2001-10-24 | Mitsubishi Electric Inf Tech | Compensating for local oscillator and sampling frequency offsets in an OFDM receiver |
KR100333818B1 (ko) * | 2000-08-16 | 2002-04-26 | 윤종용 | 디지털 오디오 수신기에서 널 심볼을 이용한 전송 모드검출 장치 및 방법 |
NZ509688A (en) * | 2001-02-01 | 2003-06-30 | Ind Res Ltd | Maximum likelihood sychronisation (estimating time delay) for wireless digital communications system using a pilot symbol |
JP2002314504A (ja) * | 2001-04-12 | 2002-10-25 | Mitsubishi Electric Corp | 通信装置およびサンプルクロック調整方法 |
ES2187274B1 (es) | 2001-05-17 | 2004-08-16 | Diseño De Sistemas En Silicio, S.A. | Sistema de control automatico de ganancia para sistema de transmision digital ofdm multiusuario sobre red electrica. |
ES2188370B1 (es) * | 2001-05-21 | 2004-10-16 | Diseño De Sistemas En Silicio, S.A. | Procedimiento para la sincronizacion en el enlace descendente de multiples usuarios en un sistema de transmision punto a multipunto con modulacion ofdm. |
US6970896B2 (en) * | 2001-08-08 | 2005-11-29 | Octasic Inc. | Method and apparatus for generating a set of filter coefficients |
JP2003115816A (ja) | 2001-10-03 | 2003-04-18 | Fujitsu Ltd | Ofdm復調方法および装置 |
US7548506B2 (en) * | 2001-10-17 | 2009-06-16 | Nortel Networks Limited | System access and synchronization methods for MIMO OFDM communications systems and physical layer packet and preamble design |
KR100908143B1 (ko) * | 2001-11-06 | 2009-07-16 | 엔엑스피 비 브이 | 주파수 오류 검출 방법과 그 장치, 컴퓨터 판독 가능 기록 매체 |
KR100726964B1 (ko) * | 2002-04-15 | 2007-06-14 | 삼성탈레스 주식회사 | 직교 주파수 분할 다중 송수신기 심벌 프레임 동기화 장치및 방법 |
US7116745B2 (en) * | 2002-04-17 | 2006-10-03 | Intellon Corporation | Block oriented digital communication system and method |
US7139340B2 (en) * | 2002-06-28 | 2006-11-21 | Hitachi, Ltd. | Robust OFDM carrier recovery methods and apparatus |
US6957054B2 (en) * | 2002-08-09 | 2005-10-18 | Freescale Semiconductor, Inc. | Radio receiver having a variable bandwidth IF filter and method therefor |
US7457230B2 (en) * | 2003-01-31 | 2008-11-25 | Ntt Docomo, Inc. | Sending radio station, receiving radio station, radio communication system, and radio communication method |
-
2003
- 2003-01-10 ES ES200300052A patent/ES2212744B2/es not_active Expired - Fee Related
-
2004
- 2004-01-08 PT PT04700705T patent/PT1583267E/pt unknown
- 2004-01-08 AT AT04700705T patent/ATE389267T1/de not_active IP Right Cessation
- 2004-01-08 CN CNA2004800019002A patent/CN1723648A/zh active Pending
- 2004-01-08 AU AU2004204595A patent/AU2004204595A1/en not_active Abandoned
- 2004-01-08 KR KR1020057012858A patent/KR101083795B1/ko active IP Right Grant
- 2004-01-08 CA CA002512920A patent/CA2512920A1/en not_active Abandoned
- 2004-01-08 EA EA200501060A patent/EA007858B1/ru not_active IP Right Cessation
- 2004-01-08 ES ES04700705T patent/ES2303627T3/es not_active Expired - Lifetime
- 2004-01-08 EP EP04700705A patent/EP1583267B1/en not_active Expired - Lifetime
- 2004-01-08 JP JP2006500143A patent/JP2006515735A/ja active Pending
- 2004-01-08 WO PCT/ES2004/000003 patent/WO2004064278A1/es active IP Right Grant
- 2004-01-08 BR BR0406716-9A patent/BRPI0406716A/pt not_active IP Right Cessation
- 2004-01-08 DE DE602004012381T patent/DE602004012381T2/de not_active Expired - Lifetime
- 2004-01-08 MX MXPA05006896A patent/MXPA05006896A/es active IP Right Grant
- 2004-01-12 TW TW093100683A patent/TWI256790B/zh not_active IP Right Cessation
-
2005
- 2005-06-17 US US11/155,316 patent/US8385434B2/en active Active
- 2005-06-19 IL IL169272A patent/IL169272A0/en active IP Right Grant
-
2013
- 2013-02-25 US US13/775,299 patent/US8837617B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
MXPA05006896A (es) | 2005-08-16 |
WO2004064278A1 (es) | 2004-07-29 |
US20130163652A1 (en) | 2013-06-27 |
TWI256790B (en) | 2006-06-11 |
EA200501060A1 (ru) | 2006-04-28 |
KR20050100609A (ko) | 2005-10-19 |
CA2512920A1 (en) | 2004-07-29 |
ES2212744B2 (es) | 2005-03-16 |
ES2303627T3 (es) | 2008-08-16 |
US8385434B2 (en) | 2013-02-26 |
JP2006515735A (ja) | 2006-06-01 |
KR101083795B1 (ko) | 2011-11-18 |
DE602004012381D1 (de) | 2008-04-24 |
ATE389267T1 (de) | 2008-03-15 |
ES2212744A1 (es) | 2004-07-16 |
DE602004012381T2 (de) | 2009-12-24 |
EP1583267A1 (en) | 2005-10-05 |
US20060140292A1 (en) | 2006-06-29 |
AU2004204595A1 (en) | 2004-07-29 |
US8837617B2 (en) | 2014-09-16 |
EP1583267B1 (en) | 2008-03-12 |
EA007858B1 (ru) | 2007-02-27 |
TW200503461A (en) | 2005-01-16 |
CN1723648A (zh) | 2006-01-18 |
PT1583267E (pt) | 2008-06-23 |
IL169272A0 (en) | 2007-07-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
IL169272A0 (en) | Method for the time-and frequency-domain synchronization of multiple devices in a transmission system with ofdm modulation | |
KR102196222B1 (ko) | 프리앰블 심볼의 생성 및 수신방법과 주파수 영역 심볼의 생성방법 및 장치 | |
DE60135193D1 (de) | Symboltaktsynchronisierung in Mehrträgerempfängern | |
WO2011053836A3 (en) | Method and apparatus for mutiplexing reference signal and data in a wireless communication system | |
WO2018209124A3 (en) | Slot structure design using guard intervals in a single carrier waveform | |
GB2459807B (en) | Method of transmitting control signals in wireless communication system | |
JPH06504178A (ja) | マルチチャネルtdm通信システムスロット位相補正 | |
WO2007066973A3 (en) | Apparatus and method for transmitting data using a plurality of carriers | |
WO2007092694A3 (en) | Method and apparatus for interleaving sequence elements of an ofdma synchronization channel | |
WO2007092693A3 (en) | Method and apparatus for a synchronization channel in an ofdma system | |
WO1996002990A3 (en) | Method and device for synchronization of transmitter and receiver in a digital system | |
WO2004040834A3 (en) | Iterative channel estimation in multicarrier receivers | |
KR970078071A (ko) | 통신시스템, 통신방법 그리고 단말장치 | |
WO2006105047A3 (en) | Method and apparatus for co-channel interference reduction in single-sideband ofdm transmissions | |
WO2006086214A3 (en) | System and method for removing interfering narrowband signals from wide bandwidth receive signal | |
WO2004109475A3 (en) | System and method for determining synchronization point in ofdm modems for accurate time of flight measurement | |
WO2007063519A3 (en) | Windowed orthogonal frequency division multiplexing for spectrum agile radios | |
TW200742381A (en) | Method and system for synchronizing a receiver in an OFDM system | |
ATE374475T1 (de) | Verfahren für zeitliche abstimmung in einem mehrträger-übertragungssystem (dmt) | |
CN1144434C (zh) | 正交多载波信号的生成方法及解码方法 | |
WO2018016718A3 (ko) | 필터뱅크 다중 반송파 시스템에서 첨두 대 평균전력 비를 감소시키기 위한 장치 및 방법 | |
WO2007069203A3 (en) | Ofdm system synchronization using correlations with known pilot patterns | |
EP1829313B1 (en) | Receiver and communication method for digital multi-carrier communication | |
US20090052567A1 (en) | Synchronization sequence with tone notching in ofdm systems | |
ATE306771T1 (de) | Pilotgestützte taktsynchronisation für ofdm- signale |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
B08F | Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette] |
Free format text: REFERENTE AS 7A E 8A ANUIDADES. |
|
B08K | Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette] |
Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2159 DE 22/05/2012. |