BRPI0820595A2 - Métodos e aparelhos para identificação de uma sequência de preâmbulo para estimativa de um desvio de frequência portadora inteira. - Google Patents
Métodos e aparelhos para identificação de uma sequência de preâmbulo para estimativa de um desvio de frequência portadora inteira.Info
- Publication number
- BRPI0820595A2 BRPI0820595A2 BRPI0820595-7A BRPI0820595A BRPI0820595A2 BR PI0820595 A2 BRPI0820595 A2 BR PI0820595A2 BR PI0820595 A BRPI0820595 A BR PI0820595A BR PI0820595 A2 BRPI0820595 A2 BR PI0820595A2
- Authority
- BR
- Brazil
- Prior art keywords
- estimating
- identifying
- methods
- carrier frequency
- frequency offset
- 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
- H04L27/2659—Coarse or integer frequency offset determination and synchronisation
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/955,062 US8532201B2 (en) | 2007-12-12 | 2007-12-12 | Methods and apparatus for identifying a preamble sequence and for estimating an integer carrier frequency offset |
PCT/US2008/052720 WO2009075898A1 (en) | 2007-12-12 | 2008-01-31 | Methods and apparatus for identifying a preamble sequence and for estimating an integer carrier frequency offset |
Publications (2)
Publication Number | Publication Date |
---|---|
BRPI0820595A2 true BRPI0820595A2 (pt) | 2015-05-19 |
BRPI0820595B1 BRPI0820595B1 (pt) | 2020-04-07 |
Family
ID=39627707
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0820595A BRPI0820595B1 (pt) | 2007-12-12 | 2008-01-31 | método, aparelho e memória legível por computador para identificar uma sequência de preâmbulo e para estimar um deslocamento de frequência da portadora inteiro |
Country Status (10)
Country | Link |
---|---|
US (1) | US8532201B2 (pt) |
EP (1) | EP2232806B1 (pt) |
JP (2) | JP2011507396A (pt) |
KR (1) | KR101199132B1 (pt) |
CN (1) | CN101897161B (pt) |
BR (1) | BRPI0820595B1 (pt) |
CA (1) | CA2706470C (pt) |
RU (1) | RU2448425C2 (pt) |
TW (1) | TWI410093B (pt) |
WO (1) | WO2009075898A1 (pt) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8265178B2 (en) * | 2006-11-07 | 2012-09-11 | Qualcomm Incorporated | Methods and apparatus for signal and timing detection in wireless communication systems |
US20080107200A1 (en) * | 2006-11-07 | 2008-05-08 | Telecis Wireless, Inc. | Preamble detection and synchronization in OFDMA wireless communication systems |
US8537931B2 (en) * | 2008-01-04 | 2013-09-17 | Qualcomm Incorporated | Methods and apparatus for synchronization and detection in wireless communication systems |
US8804691B1 (en) * | 2008-08-18 | 2014-08-12 | Marvell International Ltd. | Phase based preamble detection |
US8548074B2 (en) | 2009-01-06 | 2013-10-01 | Samsung Electronics Co., Ltd. | Apparatus and method for generating synchronization channel in a wireless communication system |
CN102158249B (zh) * | 2010-02-11 | 2014-06-11 | 富士通株式会社 | 用于检测主同步序列的方法和装置 |
WO2011120212A1 (en) | 2010-03-29 | 2011-10-06 | Murata Manufacturing Co., Ltd | Method and apparatus for accurate time synchronization in wireless communication system |
US9532326B2 (en) * | 2012-05-14 | 2016-12-27 | Telefonaktiebolaget Lm Ericsson (Publ) | Frequency offset estimation between a mobile communication terminal and a network node |
EP2670102B1 (en) * | 2012-05-31 | 2016-03-30 | Mitsubishi Electric R&D Centre Europe B.V. | Method and device for synchronizing a receiver on received preamble symbol |
US9593339B1 (en) | 2013-02-14 | 2017-03-14 | David Gordon Bermudes | Bacteria carrying bacteriophage and protease inhibitors for the treatment of disorders and methods of treatment |
KR101535667B1 (ko) * | 2013-03-05 | 2015-07-09 | (주)에프씨아이 | 정수 주파수 오프셋 추정 방법 및 장치 |
KR20140115049A (ko) * | 2013-03-20 | 2014-09-30 | 한국전자통신연구원 | 비동기 직교주파수 분할다중 시스템에서 순환확장부호를 이용한 가변적인 심볼 타이밍의 보상 방법 및 장치 |
TWI542233B (zh) * | 2014-01-17 | 2016-07-11 | 國立台灣大學 | 應用於行動通訊網路之細胞搜尋與同步方法及裝置 |
CN105282077B (zh) * | 2014-06-18 | 2019-04-19 | 普天信息技术有限公司 | 一种用于lte系统的上行频偏纠正方法 |
EP3079321B1 (en) * | 2015-04-08 | 2019-01-30 | Nxp B.V. | Memory misalignment correction |
US9887869B2 (en) * | 2016-05-06 | 2018-02-06 | Samsung Electronics Co., Ltd. | Method of compensating carrier frequency offset in receivers |
CN106254289B (zh) * | 2016-09-09 | 2020-01-21 | 锐捷网络股份有限公司 | 一种频率偏移估计方法、发射机、接收机及通信系统 |
KR102601201B1 (ko) | 2016-10-07 | 2023-11-13 | 한국전자통신연구원 | 주파수 옵셋 추정 및 보상 방법 |
CN111342948B (zh) * | 2017-02-05 | 2022-01-28 | 小象(广州)商务有限公司 | 应用于窄带无线通信系统终端的同步检测装置 |
CN109391580B (zh) * | 2017-08-04 | 2021-06-15 | 安立股份有限公司 | 同步装置及同步方法 |
US10594727B2 (en) | 2018-07-17 | 2020-03-17 | Levl Technologies, Inc. | Relay attack prevention |
WO2020044233A1 (en) * | 2018-08-27 | 2020-03-05 | Levl Technologies, Inc. | Carrier frequency offset modeling for radio frequency fingerprinting |
WO2020070594A1 (en) | 2018-10-03 | 2020-04-09 | Levl Technologies, Inc. | Carrier frequency estimation for radio frequency fingerprinting |
CN113498161B (zh) * | 2020-04-07 | 2023-05-05 | 华为技术有限公司 | 一种信息确定方法及通信装置 |
US11627531B2 (en) * | 2020-11-29 | 2023-04-11 | Silicon Laboratories Inc. | WLAN receiver early power down based on center frequency offset detection |
CN115037328B (zh) * | 2022-05-31 | 2023-06-16 | 江苏屹信航天科技有限公司 | 用于同步的前导序列的发送方法、发送装置、终端 |
Family Cites Families (55)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5710768A (en) | 1994-09-30 | 1998-01-20 | Qualcomm Incorporated | Method of searching for a bursty signal |
MY120873A (en) | 1994-09-30 | 2005-12-30 | Qualcomm Inc | Multipath search processor for a spread spectrum multiple access communication system |
DE69711957T2 (de) | 1996-02-02 | 2002-09-19 | Thomson Brandt Gmbh | Verfahren und Einrichtung zum Empfang von Mehrträgersignalen |
KR100238047B1 (ko) | 1997-02-25 | 2000-01-15 | 윤종용 | 직교 주파수분할 다중화 전송시스템의 반송파 주파수 동기 방법 및 동기 장치 |
US6597675B1 (en) | 1997-04-30 | 2003-07-22 | Telefonaktiebolaget Lm Ericsson (Publ) | Random access in a mobile telecommunications system |
US6163533A (en) | 1997-04-30 | 2000-12-19 | Telefonaktiebolaget Lm Ericsson (Publ) | Random access in a mobile telecommunications system |
US5852630A (en) * | 1997-07-17 | 1998-12-22 | Globespan Semiconductor, Inc. | Method and apparatus for a RADSL transceiver warm start activation procedure with precoding |
KR100263372B1 (ko) | 1997-11-29 | 2000-08-01 | 전주범 | 직교분할대역 시스템의 간략 주파수 획득 방법 및 그 장치 |
JP3680595B2 (ja) | 1998-11-10 | 2005-08-10 | 松下電器産業株式会社 | 識別装置 |
US6590881B1 (en) | 1998-12-04 | 2003-07-08 | Qualcomm, Incorporated | Method and apparatus for providing wireless communication system synchronization |
DE69937912T2 (de) * | 1999-05-21 | 2008-12-24 | Fujitsu Ltd., Kawasaki | Digitales Teilnehmerleitungsverfahren, -gerät und -system unter Verwendung synchroner Verarbeitung |
RU2168278C2 (ru) | 1999-07-16 | 2001-05-27 | Корпорация "Самсунг Электроникс" | Способ произвольного доступа абонентов мобильной станции |
US6807241B1 (en) | 1999-09-15 | 2004-10-19 | Lucent Technologies Inc. | Method and apparatus for partial and course frequency offset estimation in a digital audio broadcasting (DAB) system |
US7039581B1 (en) | 1999-09-22 | 2006-05-02 | Texas Instruments Incorporated | Hybrid speed coding and system |
US6707856B1 (en) | 1999-10-07 | 2004-03-16 | Cisco Technology | Transmission of system configuration information |
JP3691709B2 (ja) | 2000-02-24 | 2005-09-07 | 日本電信電話株式会社 | ダイバーシチ受信回路 |
GB2369015A (en) | 2000-11-09 | 2002-05-15 | Sony Uk Ltd | Receiver that uses guard signals to estimate synchronisation position |
US7058147B2 (en) | 2001-02-28 | 2006-06-06 | At&T Corp. | Efficient reduced complexity windowed optimal time domain equalizer for discrete multitone-based DSL modems |
US20030016702A1 (en) | 2001-03-30 | 2003-01-23 | Bender Paul E. | Method and system for maximizing standby time in monitoring a control channel |
US6959050B2 (en) | 2001-06-15 | 2005-10-25 | Motorola, Inc. | Method and apparatus for synchronizing an OFDM signal |
RU2221330C2 (ru) | 2002-01-10 | 2004-01-10 | Федеральное государственное унитарное предприятие "Воронежский научно-исследовательский институт связи" | Широкополосная система радиосвязи кв-диапазона |
US7116745B2 (en) | 2002-04-17 | 2006-10-03 | Intellon Corporation | Block oriented digital communication system and method |
KR100557159B1 (ko) | 2002-11-30 | 2006-03-03 | 삼성전자주식회사 | 직교 주파수 분할 다중 방식 통신시스템에서 프리앰블시퀀스 생성 장치 및 방법 |
US7738437B2 (en) | 2003-01-21 | 2010-06-15 | Nortel Networks Limited | Physical layer structures and initial access schemes in an unsynchronized communication network |
AU2003269739A1 (en) | 2003-03-28 | 2004-10-18 | Intel Corporation | Method and apparatus for ofdm symbol timing synchronization |
US7203245B1 (en) | 2003-03-31 | 2007-04-10 | 3Com Corporation | Symbol boundary detector method and device for OFDM systems |
KR100594597B1 (ko) | 2003-10-24 | 2006-06-30 | 한국전자통신연구원 | 이동통신시스템에서의 하향링크 신호 구성 방법 및 그장치와, 이를 이용한 동기화 및 셀 탐색 방법과 그 장치 |
KR100910690B1 (ko) | 2004-01-28 | 2009-08-04 | 콸콤 인코포레이티드 | Ofdm 수신기에서의 타이밍 추정 방법 및 시스템 |
KR100663489B1 (ko) | 2004-04-16 | 2007-01-02 | 삼성전자주식회사 | 직교 분할 다중 접속 시스템에서 셀 검출 방법 및 장치 |
US7296045B2 (en) | 2004-06-10 | 2007-11-13 | Hasan Sehitoglu | Matrix-valued methods and apparatus for signal processing |
KR100719339B1 (ko) | 2004-08-13 | 2007-05-17 | 삼성전자주식회사 | 다중 입력 다중 출력 무선 통신 시스템에서 채널 추정을통한 프레임 송수신 방법 |
US7496113B2 (en) | 2004-08-16 | 2009-02-24 | Zte (Usa) Inc. | Fast cell search and accurate synchronization in wireless communications |
US8013789B2 (en) | 2004-10-06 | 2011-09-06 | Ohio University | Systems and methods for acquisition and tracking of low CNR GPS signals |
KR100659937B1 (ko) | 2004-10-12 | 2006-12-21 | 삼성전자주식회사 | 무선통신시스템에서 셀 인식 및 하향링크 동기를 획득하기위한 장치 및 방법 |
KR100689552B1 (ko) | 2004-12-22 | 2007-03-02 | 삼성전자주식회사 | 무선 통신 시스템에서 셀 탐색 방법 및 장치 |
US8165167B2 (en) | 2005-03-10 | 2012-04-24 | Qualcomm Incorporated | Time tracking for a communication system |
JP4584756B2 (ja) * | 2005-04-07 | 2010-11-24 | 日本放送協会 | パイロット信号検出装置及び方法 |
US7602852B2 (en) | 2005-04-21 | 2009-10-13 | Telefonaktiebolaget L M Ericsson (Publ) | Initial parameter estimation in OFDM systems |
KR100770865B1 (ko) | 2005-04-25 | 2007-10-26 | 삼성전자주식회사 | 통신 시스템에서 데이터 송수신 방법 |
US20070058693A1 (en) | 2005-07-27 | 2007-03-15 | Turgut Aytur | Tone sensing and nulling in frequency-hopped multicarrier system |
KR20070021609A (ko) | 2005-08-19 | 2007-02-23 | 삼성전자주식회사 | 광대역 무선통신시스템에서 셀 탐색을 위한 송수신 장치 및방법 |
US7613104B2 (en) | 2006-05-31 | 2009-11-03 | Nokia Corporation | Method, apparatus and computer program product providing synchronization for OFDMA downlink signal |
US7882040B2 (en) | 2006-05-31 | 2011-02-01 | Gulf Talent Fz-Llc | Method for computer server operation |
US7620370B2 (en) * | 2006-07-13 | 2009-11-17 | Designart Networks Ltd | Mobile broadband wireless access point network with wireless backhaul |
US7894539B2 (en) * | 2006-07-24 | 2011-02-22 | Industrial Technology Research Institute | Method and device for estimating integer carrier frequency offset |
WO2008052200A2 (en) * | 2006-10-26 | 2008-05-02 | Qualcomm Incorporated | Method and apparatus for packet detection in a wireless communications system |
US7646823B2 (en) * | 2006-10-30 | 2010-01-12 | Broadcom Corporation | MIMO channel estimation in presence of sampling frequency offset |
US7813442B2 (en) * | 2006-10-30 | 2010-10-12 | Broadcom Corporation | MIMO channel estimation in presence of carrier frequency offset |
US20080107200A1 (en) | 2006-11-07 | 2008-05-08 | Telecis Wireless, Inc. | Preamble detection and synchronization in OFDMA wireless communication systems |
US8265178B2 (en) | 2006-11-07 | 2012-09-11 | Qualcomm Incorporated | Methods and apparatus for signal and timing detection in wireless communication systems |
CN101272369B (zh) | 2007-03-20 | 2012-05-23 | 富士通株式会社 | 前导码检测和整数倍载波频偏估计装置和方法 |
US8045636B1 (en) * | 2007-03-27 | 2011-10-25 | Marvell International Ltd. | Maximum-likelihood frame synchronization algorithms for OFDM systems |
WO2009018655A1 (en) * | 2007-08-06 | 2009-02-12 | Universite Laval | Method and apparatus for signal acquisition in ofdm receivers |
KR101369360B1 (ko) * | 2007-09-05 | 2014-03-04 | 삼성전자주식회사 | Ofdm 수신기의 cfo 동기화 방법 및 장치 |
US8537931B2 (en) | 2008-01-04 | 2013-09-17 | Qualcomm Incorporated | Methods and apparatus for synchronization and detection in wireless communication systems |
-
2007
- 2007-12-12 US US11/955,062 patent/US8532201B2/en active Active
-
2008
- 2008-01-31 RU RU2010128540/08A patent/RU2448425C2/ru active
- 2008-01-31 JP JP2010537995A patent/JP2011507396A/ja not_active Ceased
- 2008-01-31 BR BRPI0820595A patent/BRPI0820595B1/pt active IP Right Grant
- 2008-01-31 WO PCT/US2008/052720 patent/WO2009075898A1/en active Application Filing
- 2008-01-31 KR KR1020107015376A patent/KR101199132B1/ko active IP Right Grant
- 2008-01-31 CN CN2008801202130A patent/CN101897161B/zh active Active
- 2008-01-31 EP EP08780396.1A patent/EP2232806B1/en active Active
- 2008-01-31 CA CA2706470A patent/CA2706470C/en active Active
- 2008-02-04 TW TW097104264A patent/TWI410093B/zh active
-
2013
- 2013-11-25 JP JP2013243365A patent/JP5670542B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
KR20100086518A (ko) | 2010-07-30 |
CN101897161B (zh) | 2013-10-09 |
US20090154627A1 (en) | 2009-06-18 |
EP2232806A1 (en) | 2010-09-29 |
CN101897161A (zh) | 2010-11-24 |
CA2706470C (en) | 2014-05-13 |
BRPI0820595B1 (pt) | 2020-04-07 |
WO2009075898A1 (en) | 2009-06-18 |
TW200926703A (en) | 2009-06-16 |
RU2448425C2 (ru) | 2012-04-20 |
RU2010128540A (ru) | 2012-01-20 |
KR101199132B1 (ko) | 2012-11-09 |
TWI410093B (zh) | 2013-09-21 |
JP2014078965A (ja) | 2014-05-01 |
JP2011507396A (ja) | 2011-03-03 |
JP5670542B2 (ja) | 2015-02-18 |
CA2706470A1 (en) | 2009-06-18 |
US8532201B2 (en) | 2013-09-10 |
EP2232806B1 (en) | 2016-05-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BRPI0820595A2 (pt) | Métodos e aparelhos para identificação de uma sequência de preâmbulo para estimativa de um desvio de frequência portadora inteira. | |
BRPI0908763A2 (pt) | Dispositivo, método para a obtenção de uma referência de freqüência e sistema. | |
BRPI0910225A2 (pt) | método e aparelho para identificar a interferência de co-canal | |
BRPI0822605A2 (pt) | Dispositivo de identificação por radiofrequência, e, método para montagem de um dispositivo de identificação por radiofrequência. | |
BRPI0817292A2 (pt) | Método e aparelho para completação de poços. | |
BRPI0808115A2 (pt) | Método e aparelho para coexistência | |
BRPI0910587A2 (pt) | método e aparelho para eletrogalvanização | |
BRPI0814813A2 (pt) | Método para operar uma estação base, e, aparelho de estação base | |
BRPI0914707A2 (pt) | método e aparelho para processimento de uma carga de alimentação de hidrocarbonetos. | |
BRPI0821610A2 (pt) | transferência de portadora no enlace ascendente e método para perda de via com base no disparo de transferência de portadora no enlace ascendente | |
BRPI0813965A2 (pt) | Método e aparelho para liquefação de uma corrente gasosa de hidrocarbonetos. | |
BRPI0906327A2 (pt) | Folha de registro e método para fabricar folha de registro. | |
BRPI0914310A2 (pt) | sistemas, aparelhos, e métodos para prover eletroterapia não transcraniana | |
BR112012008637A2 (pt) | método e aparelho para transmitir informação de contexto interna. | |
BRPI0822175A2 (pt) | Método e aparelho para explosão de pequena carga. | |
BRPI0908562A2 (pt) | método e aparelho para identificar, autenticar, rastrear e descobrir itens fabricados | |
BRPI0912610A2 (pt) | métodos e sistemas para triagem universal de portador | |
BRPI0915254A2 (pt) | método e aparelho para agendamento de sincronização | |
BRPI0919643A2 (pt) | aparelho de formação de imagem de raio-x, e, método para formar imagem de raio-x | |
BRPI0921902A2 (pt) | método, aparelho e sistema para estimativa de canais | |
BRPI0823290A2 (pt) | Método e aparelho para configuração de dispositivos. | |
BRPI0807889A2 (pt) | Recurso de posicionamento e método para alturas de veículos precisas. | |
BRPI0910885A2 (pt) | método e aparelho para determinação de posição com dados de órbita sps híbridos | |
BRPI0813251A2 (pt) | Máquina e método para rotular recipientes. | |
BRPI0912726A2 (pt) | método de detecção de gelo e aparelho para um refrigerador |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
B06F | Objections, documents and/or translations needed after an examination request according art. 34 industrial property law | ||
B06U | Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure | ||
B09A | Decision: intention to grant | ||
B16A | Patent or certificate of addition of invention granted |
Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 07/04/2020, OBSERVADAS AS CONDICOES LEGAIS. |