ATE491295T1 - Synchronisation in einem kohärenten ofdm empfänger - Google Patents

Synchronisation in einem kohärenten ofdm empfänger

Info

Publication number
ATE491295T1
ATE491295T1 AT05023170T AT05023170T ATE491295T1 AT E491295 T1 ATE491295 T1 AT E491295T1 AT 05023170 T AT05023170 T AT 05023170T AT 05023170 T AT05023170 T AT 05023170T AT E491295 T1 ATE491295 T1 AT E491295T1
Authority
AT
Austria
Prior art keywords
frequency
pilots
correlation
time
synchronization
Prior art date
Application number
AT05023170T
Other languages
English (en)
Inventor
Ching-Yung Chen
Yi-Ting Wang
Yung-Hua Hung
Original Assignee
Ind Tech Res Inst
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ind Tech Res Inst filed Critical Ind Tech Res Inst
Application granted granted Critical
Publication of ATE491295T1 publication Critical patent/ATE491295T1/de

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
    • H04L27/2662—Symbol synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0222—Estimation of channel variability, e.g. coherence bandwidth, coherence time, fading frequency
    • 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
    • H04L27/2681—Details of algorithms characterised by constraints
    • H04L27/2686—Range of frequencies or delays tested
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Circuits Of Receivers In General (AREA)
  • Synchronizing For Television (AREA)
AT05023170T 2004-10-22 2005-10-24 Synchronisation in einem kohärenten ofdm empfänger ATE491295T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US62072504P 2004-10-22 2004-10-22
US11/153,105 US20060088133A1 (en) 2004-10-22 2005-06-15 Time-frequency correlation-based synchronization for coherent OFDM receiver

Publications (1)

Publication Number Publication Date
ATE491295T1 true ATE491295T1 (de) 2010-12-15

Family

ID=35629101

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05023170T ATE491295T1 (de) 2004-10-22 2005-10-24 Synchronisation in einem kohärenten ofdm empfänger

Country Status (6)

Country Link
US (1) US20060088133A1 (de)
EP (1) EP1650921B1 (de)
JP (1) JP4295755B2 (de)
AT (1) ATE491295T1 (de)
DE (2) DE102005045361A1 (de)
TW (1) TWI273807B (de)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JP4892547B2 (ja) * 2006-03-17 2012-03-07 パナソニック株式会社 無線通信基地局装置およびパイロット配置方法
KR101233604B1 (ko) * 2006-07-04 2013-02-14 가부시키가이샤 히다치 고쿠사이 덴키 수신 장치
US7899106B2 (en) * 2006-08-31 2011-03-01 Sony Ericsson Mobile Communications Ab Mitigating OFDM receiver interference caused by intermittent signal transmission
JP5074501B2 (ja) * 2006-09-11 2012-11-14 テレフオンアクチーボラゲット エル エム エリクソン（パブル） 時間−周波数ホッピング・パターンの検出
JP4724677B2 (ja) * 2006-10-31 2011-07-13 Ｏｋｉセミコンダクタ株式会社 周波数オフセット検出器とｏｆｄｍシンボル検出器
GB0714927D0 (en) * 2007-08-01 2007-09-12 Nokia Siemens Networks Oy Resource allocation
US7899140B2 (en) 2007-12-17 2011-03-01 Newport Media, Inc. Scattered pilot correlation in DVB-H systems
JP4505517B2 (ja) * 2008-03-17 2010-07-21 株式会社日立国際電気 受信装置
EP2291968A1 (de) * 2008-05-28 2011-03-09 Nokia Siemens Networks Oy Verfahren und vorrichtung zum bereitstellen von pilotsignalen in ofdm-rahmen
GB0810962D0 (en) 2008-06-04 2008-07-23 Sony Uk Ltd Digital signal reception
EP2131540B1 (de) * 2008-06-04 2013-09-18 Sony Corporation Neuartige Rahmenstruktur für Mehrträgersysteme
PL2131519T3 (pl) * 2008-06-04 2014-01-31 Sony Corp Nowa struktura ramki dla systemów z wieloma nośnymi
JP5838235B2 (ja) * 2008-06-04 2016-01-06 ソニー ドイチュラント ゲゼルシャフト ミット ベシュレンクテル ハフツング マルチキャリアシステムのための新たなフレーム及び信号パターン構造
US8116419B2 (en) * 2008-07-14 2012-02-14 Alcatel Lucent Methods and apparatuses for estimating time delay and frequency offset in single frequency networks
PL2154849T3 (pl) * 2008-08-14 2014-04-30 Sony Corp Nowa rama i struktura wzorca sygnalizacji dla systemów z wieloma nośnymi
US8089858B2 (en) * 2008-08-14 2012-01-03 Sony Corporation Frame and signalling pattern structure for multi-carrier systems
EP2154848B1 (de) * 2008-08-14 2013-10-02 Sony Corporation Neue Rahmen- und Signalisierungsmusterstruktur für Mehrträgersysteme
EP2154850B1 (de) 2008-08-14 2014-01-08 Sony Corporation Neue Rahmen- und Signalisierungsmusterstruktur für Mehrträgersysteme
PL2154847T3 (pl) * 2008-08-14 2014-01-31 Sony Corp Nowa rama i struktura wzorca sygnalizacji dla systemu z wieloma nośnymi
AU2009202830C1 (en) * 2008-08-14 2015-08-20 Sony Corporation New frame and signalling pattern structure for multi-carrier systems
EP2512086B1 (de) * 2008-09-08 2017-09-27 Sony Corporation Neue Rahmen- und Datenmusterstruktur für Mehrträgersysteme
EP2161889B1 (de) * 2008-09-08 2013-02-13 Sony Corporation Neue Rahmen- und Datenmusterstruktur für Mehrträgersysteme
US8194529B2 (en) 2008-09-08 2012-06-05 Sony Corporation Frame and data pattern structure for multi-carrier systems
US8203929B2 (en) 2008-10-09 2012-06-19 Sony Corporation Frame and data pattern structure for multi-carrier systems
EP2175600B1 (de) * 2008-10-09 2014-12-31 Sony Corporation Neue Rahmen- und Datenmusterstruktur für Mehrträgersysteme
EP2175596B1 (de) * 2008-10-09 2016-12-21 Sony Corporation Neue Rahmen- und Datenmusterstruktur für Mehrträgersystem
JP5212638B2 (ja) * 2008-11-21 2013-06-19 ネッツエスアイ東洋株式会社 電力線搬送通信システム及び電力線搬送通信装置
CN101800719B (zh) * 2009-02-10 2013-03-20 扬智科技股份有限公司 离散导频同步方法与装置及其通信系统
US9182246B2 (en) 2010-01-25 2015-11-10 Sony Corporation Method, system and sensor for identifying an electrical device connected to a mains grid
JP5540733B2 (ja) * 2010-01-29 2014-07-02 富士通セミコンダクター株式会社 信号処理装置，信号処理方法とそれを有する受信装置
JP5511434B2 (ja) * 2010-02-23 2014-06-04 三菱電機株式会社 フレーム同期装置および受信装置
US9215019B2 (en) 2012-02-13 2015-12-15 Alcatel Lucent Method and apparatus for interference cancellation in hybrid satellite-terrestrial network
TWI487336B (zh) * 2012-04-24 2015-06-01 Mstar Semiconductor Inc 相位誤差修正裝置及相位誤差修正方法
CN104349488A (zh) * 2013-08-09 2015-02-11 阿尔卡特朗讯 多点协作中的信令信息交换装置与方法
US9137083B1 (en) * 2014-04-17 2015-09-15 Freescale Semiconductor, Inc. Synchronization and frequency correction for a receiver
US9253007B1 (en) * 2014-10-13 2016-02-02 Silicon Laboratories Inc. Methods and systems for rapid detection of digital content within RF signals

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100226708B1 (ko) * 1997-06-26 1999-10-15 전주범 직교분할대역 채널 등화기의 계수 메모리를 위한 어드레스 발생 장치
KR100314353B1 (ko) * 1998-04-28 2001-12-28 전주범 직교분할대역수신시스템
DE19948383A1 (de) * 1999-10-07 2001-04-12 Rohde & Schwarz Verfahren zum empfangsseitigen Bestimmen der Nutzdatenkonstellation eines nach dem DVB-T-Standard modulierten Multiträger-Signals für die Berechnung der Restträgerleistung bzw. Verbesserung der Demodulation
JP2002009728A (ja) * 2000-06-23 2002-01-11 Hitachi Kokusai Electric Inc 直交周波数分割多重変調伝送装置
EP1178640B1 (de) * 2000-08-01 2006-05-24 Sony Deutschland GmbH Vorrichtung und Verfahren zur Kanalschätzung eines OFDM-system
JP3776716B2 (ja) * 2000-11-17 2006-05-17 株式会社東芝 直交周波数分割多重伝送信号受信装置
US8170513B2 (en) * 2002-10-25 2012-05-01 Qualcomm Incorporated Data detection and demodulation for wireless communication systems
JP3642784B2 (ja) * 2002-10-28 2005-04-27 三菱電機株式会社 ダイバーシチ受信装置およびダイバーシチ受信方法
FR2851384B1 (fr) * 2003-02-17 2009-12-18 Wavecom Procede de transmission de donnees radio, signal, systeme et dispositifs correspondant.
US8483189B2 (en) * 2003-03-10 2013-07-09 Panasonic Corporation OFDM signal transmission method, transmission apparatus, and reception apparatus
US7580466B2 (en) * 2003-05-12 2009-08-25 Mitsubishi Denki Kabushiki Kaisha Demodulation device and demodulation method
US20040228270A1 (en) * 2003-05-13 2004-11-18 Hou-Shin Chen Method of processing an OFDM signal and OFDM receiver using the same
KR100555722B1 (ko) * 2003-05-20 2006-03-03 삼성전자주식회사 다중 반송파 수신 시스템의 정수배 주파수 옵셋 추정 장치및 그의 정수배 주파수 옵셋 추정방법
JP3662579B2 (ja) * 2003-05-30 2005-06-22 三菱電機株式会社 Ｏｆｄｍ信号受信装置及びｏｆｄｍ信号受信方法
AU2003238128A1 (en) * 2003-06-30 2005-01-13 Nokia Corporation Faster fine timing operation in multi-carrier system
KR100606105B1 (ko) * 2003-07-04 2006-07-28 삼성전자주식회사 다중 접속 방식을 사용하는 이동 통신 시스템의 셀 탐색장치 및 방법
EP1507378B1 (de) * 2003-08-14 2012-10-24 Sony Deutschland GmbH Rahmen- und Frequenzsynchronisation für OFDM
AU2003262613A1 (en) * 2003-09-22 2005-04-11 Nokia Corporation Method, system and receiver in receiving a multi-carrier transmission
EP1521413A3 (de) * 2003-10-01 2009-09-30 Panasonic Corporation Mehrträgerempfang mit Kanalschätzung und Entzerrung
AU2003267470A1 (en) * 2003-10-03 2005-04-21 Nokia Corporation Method, system and receiver for receiving a multi-carrier transmission
KR100507541B1 (ko) * 2003-12-19 2005-08-09 삼성전자주식회사 직교주파수분할다중접속 시스템에서의 데이터 및 파일롯할당 방법 과 그를 이용한 송신 방법 및 그 장치, 수신방법과 그 장치

Also Published As

Publication number Publication date
EP1650921A2 (de) 2006-04-26
DE102005045361A1 (de) 2006-05-04
EP1650921B1 (de) 2010-12-08
US20060088133A1 (en) 2006-04-27
JP2006148884A (ja) 2006-06-08
TW200640212A (en) 2006-11-16
JP4295755B2 (ja) 2009-07-15
TWI273807B (en) 2007-02-11
DE602005025189D1 (de) 2011-01-20
EP1650921A3 (de) 2007-12-12

Similar Documents

Publication Publication Date Title
ATE491295T1 (de) Synchronisation in einem kohärenten ofdm empfänger
WO2008149856A1 (ja) 変調装置、復調装置、および音響信号伝送方法
UA91509C2 (ru) Система модуляции с множеством несущих с разнесением циклических задержек
WO2007084988A3 (en) Method and apparatus for pilot multiplexing in a wireless communication system
DE602007005803D1 (de) Verfahren und Vorrichtung zur Verwendung des Synchronisationskanals zum Erhalten von Messungen von Nachbarzellen in einem OFDM-Kommunikationssystem
WO2020252319A3 (en) Device-to-device synchronization in wireless communications
RU2010111718A (ru) Обнаружение сигнала в системе беспроводной связи
TW200926703A (en) Methods and apparatus for identifying a preamble sequence and for estimating an integer carrier frequency offset
EP1662736A3 (de) Taktsynchronisierung und Schätzung der Frequenzabweichung in OFDM-Systemen
MX2010001201A (es) Metodo y aparato para determinar la sincronizacion en un sistema de comunicaciones inalambricas.
DE60133015D1 (de) Zyklische verzögerungsdiversität zur verringerung der intersymbolinterferenz in ofdm-systemen
GB2512394A8 (en) Transmitter and method of transmitting
WO2007092693A3 (en) Method and apparatus for a synchronization channel in an ofdma system
TW200704057A (en) A gradient based method and apparatus for OFDM sub-carrier power optimization
TW200943790A (en) Transmitters, receivers and apparatus and methods for pilot design
MX2017002061A (es) Aparatos y metodos de señalizacion.
WO2010030495A3 (en) Apparatus and method for interference-adaptive communications
IN2014MN01630A (de)
TW200746734A (en) Method and apparatus for pilot multiplexing in a wireless communication system
WO2015038647A3 (en) Extended guard interval for outdoor wlan
RU2007109815A (ru) Устройство и способ для синхронизации частоты в системе ofdm
EA200301161A1 (ru) Способ синхронизации передачи данных множеству пользователей в нисходящем канале многоточечной системы передачи данных с использованием очу-модуляции
EP4407916A3 (de) Benutzergerät und verfahren zur übertragung eines synchronisationssignalblocks davon
WO2007023359A3 (en) Apparatus, method and computer program product providing initial cell acquisition and pilot sequence detection
ATE517493T1 (de) Verfahren und vorrichtung zur abschwächung der interferenz in mehrträger-modulationssystemen

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties