DE69523365D1 - Sender und Empfänger für OFDM - Google Patents

Sender und Empfänger für OFDM

Info

Publication number
DE69523365D1
DE69523365D1 DE69523365T DE69523365T DE69523365D1 DE 69523365 D1 DE69523365 D1 DE 69523365D1 DE 69523365 T DE69523365 T DE 69523365T DE 69523365 T DE69523365 T DE 69523365T DE 69523365 D1 DE69523365 D1 DE 69523365D1
Authority
DE
Germany
Prior art keywords
ofdm
sender
receiver
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
Application number
DE69523365T
Other languages
English (en)
Other versions
DE69523365T2 (de
Inventor
Nobuaki Takahashi
Susumu Takahashi
Kenji Sugiyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26457326&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69523365(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from JP14102094A external-priority patent/JP2790239B2/ja
Application filed by Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Publication of DE69523365D1 publication Critical patent/DE69523365D1/de
Application granted granted Critical
Publication of DE69523365T2 publication Critical patent/DE69523365T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2626Arrangements specific to the transmitter only
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2602Signal structure
    • H04L27/2605Symbol extensions, e.g. Zero Tail, Unique Word [UW]
    • H04L27/2607Cyclic extensions
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2647Arrangements specific to the receiver only
    • H04L27/2655Synchronisation arrangements
    • H04L27/2657Carrier synchronisation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2647Arrangements specific to the receiver only
    • H04L27/2655Synchronisation arrangements
    • H04L27/2668Details of algorithms
    • H04L27/2673Details of algorithms characterised by synchronisation parameters
    • H04L27/2675Pilot or known symbols
DE69523365T 1994-05-09 1995-05-08 Sender und Empfänger für OFDM Expired - Lifetime DE69523365T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP11963794 1994-05-09
JP14102094A JP2790239B2 (ja) 1994-05-31 1994-05-31 直交周波数分割多重信号送受信装置

Publications (2)

Publication Number Publication Date
DE69523365D1 true DE69523365D1 (de) 2001-11-29
DE69523365T2 DE69523365T2 (de) 2002-07-04

Family

ID=26457326

Family Applications (3)

Application Number Title Priority Date Filing Date
DE69534067T Expired - Lifetime DE69534067T2 (de) 1994-05-09 1995-05-08 Einstellung eines Referenzunterträgers bei Mehrträgerübertragung
DE69523365T Expired - Lifetime DE69523365T2 (de) 1994-05-09 1995-05-08 Sender und Empfänger für OFDM
DE69534066T Expired - Lifetime DE69534066T2 (de) 1994-05-09 1995-05-08 Einstellung eines Referenzunterträgers bei Mehrträgerübertragung

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69534067T Expired - Lifetime DE69534067T2 (de) 1994-05-09 1995-05-08 Einstellung eines Referenzunterträgers bei Mehrträgerübertragung

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE69534066T Expired - Lifetime DE69534066T2 (de) 1994-05-09 1995-05-08 Einstellung eines Referenzunterträgers bei Mehrträgerübertragung

Country Status (3)

Country Link
US (1) US5732068A (de)
EP (3) EP0982907B1 (de)
DE (3) DE69534067T2 (de)

Families Citing this family (93)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6334219B1 (en) 1994-09-26 2001-12-25 Adc Telecommunications Inc. Channel selection for a hybrid fiber coax network
DE4434451A1 (de) * 1994-09-27 1996-03-28 Blaupunkt Werke Gmbh Amplitudendemodulator
US7280564B1 (en) 1995-02-06 2007-10-09 Adc Telecommunications, Inc. Synchronization techniques in multipoint-to-point communication using orthgonal frequency division multiplexing
USRE42236E1 (en) 1995-02-06 2011-03-22 Adc Telecommunications, Inc. Multiuse subcarriers in multipoint-to-point communication using orthogonal frequency division multiplexing
GB9510127D0 (en) * 1995-05-20 1995-08-02 West End System Corp CATV Data transmission system
JP2875976B2 (ja) * 1996-01-29 1999-03-31 三星電子株式会社 直交周波数分割多重の方法及び同期方法と、直交周波数分割多重用変調器及び復調器
JPH09270765A (ja) * 1996-01-31 1997-10-14 Victor Co Of Japan Ltd Ofdm変復調装置及びofdm変調方法
DE69630942D1 (de) * 1996-02-16 2004-01-15 St Microelectronics Srl Automatische Detektion des Übertragungsmodus in Empfängern von digitalen Tonsignalen
JP2738385B2 (ja) * 1996-04-15 1998-04-08 日本電気株式会社 可変帯域幅周波数分割多重通信方式
JP2798127B2 (ja) * 1996-07-19 1998-09-17 日本電気株式会社 送信装置およびこれを含む通信装置
JP3289610B2 (ja) * 1996-07-31 2002-06-10 日本ビクター株式会社 Ofdm復調装置及びその方法
US6950388B2 (en) * 1996-08-22 2005-09-27 Tellabs Operations, Inc. Apparatus and method for symbol alignment in a multi-point OFDM/DMT digital communications system
US6771590B1 (en) * 1996-08-22 2004-08-03 Tellabs Operations, Inc. Communication system clock synchronization techniques
US6118758A (en) * 1996-08-22 2000-09-12 Tellabs Operations, Inc. Multi-point OFDM/DMT digital communications system including remote service unit with improved transmitter architecture
US5790514A (en) * 1996-08-22 1998-08-04 Tellabs Operations, Inc. Multi-point OFDM/DMT digital communications system including remote service unit with improved receiver architecture
GB9622728D0 (en) * 1996-10-31 1997-01-08 Discovision Ass Timing synchronization in a reciever employing orthogonal frequency division mutiplexing
US6359938B1 (en) 1996-10-31 2002-03-19 Discovision Associates Single chip VLSI implementation of a digital receiver employing orthogonal frequency division multiplexing
US5912876A (en) * 1997-01-15 1999-06-15 Ericsson, Inc. Method and apparatus for channel estimation
US5907577A (en) * 1997-02-06 1999-05-25 At&T Wireless Services Delay compensation
US5933421A (en) * 1997-02-06 1999-08-03 At&T Wireless Services Inc. Method for frequency division duplex communications
US5875208A (en) * 1997-02-06 1999-02-23 At&T Wireless Services, Inc Delay compensation in a discrete multitone spread spectrum communications system
US6501771B2 (en) 1997-02-11 2002-12-31 At&T Wireless Services, Inc. Delay compensation
TW465234B (en) 1997-02-18 2001-11-21 Discovision Ass Single chip VLSI implementation of a digital receiver employing orthogonal frequency division multiplexing
US6408016B1 (en) * 1997-02-24 2002-06-18 At&T Wireless Services, Inc. Adaptive weight update method and system for a discrete multitone spread spectrum communications system
US6584144B2 (en) * 1997-02-24 2003-06-24 At&T Wireless Services, Inc. Vertical adaptive antenna array for a discrete multitone spread spectrum communications system
US6359923B1 (en) * 1997-12-18 2002-03-19 At&T Wireless Services, Inc. Highly bandwidth efficient communications
US6005840A (en) * 1997-04-01 1999-12-21 Lucent Technologies Inc. Complementary encoding and modulation system for use in an orthogonal frequency division multiplexing transmitter system and method thereof
JPH10313284A (ja) * 1997-05-12 1998-11-24 Sony Corp 復調装置及び復調方法
JP3568180B2 (ja) 1997-06-12 2004-09-22 株式会社日立国際電気 データ伝送装置
US6151296A (en) * 1997-06-19 2000-11-21 Qualcomm Incorporated Bit interleaving for orthogonal frequency division multiplexing in the transmission of digital signals
JPH1117643A (ja) * 1997-06-19 1999-01-22 Hitachi Denshi Ltd Ofdm変調器
US6151332A (en) 1997-06-20 2000-11-21 Tantivy Communications, Inc. Protocol conversion and bandwidth reduction technique providing multiple nB+D ISDN basic rate interface links over a wireless code division multiple access communication system
US6081536A (en) 1997-06-20 2000-06-27 Tantivy Communications, Inc. Dynamic bandwidth allocation to transmit a wireless protocol across a code division multiple access (CDMA) radio link
EP0899923A1 (de) * 1997-08-29 1999-03-03 Sony International (Europe) GmbH Übertragung von Leistungssteuersignalen in Mehrträgermodulationssystemen
USRE43703E1 (en) * 1997-09-04 2012-10-02 Sony Deutschland Gmbh Transmission system for OFDM-signals with optimized synchronization
EP0901256B1 (de) * 1997-09-04 2006-11-29 Sony Deutschland GmbH Übertragungssystem für OFDM-Signalen mit optimierter Synchronisation
US9525923B2 (en) 1997-12-17 2016-12-20 Intel Corporation Multi-detection of heartbeat to reduce error probability
US7394791B2 (en) 1997-12-17 2008-07-01 Interdigital Technology Corporation Multi-detection of heartbeat to reduce error probability
US7936728B2 (en) 1997-12-17 2011-05-03 Tantivy Communications, Inc. System and method for maintaining timing of synchronization messages over a reverse link of a CDMA wireless communication system
US6222832B1 (en) 1998-06-01 2001-04-24 Tantivy Communications, Inc. Fast Acquisition of traffic channels for a highly variable data rate reverse link of a CDMA wireless communication system
DE19802398C1 (de) 1998-01-22 1999-05-06 Siemens Ag Verfahren zur Verarbeitung eines Signals aus Datensymbolen
US7440498B2 (en) 2002-12-17 2008-10-21 Tellabs Operations, Inc. Time domain equalization for discrete multi-tone systems
ES2389626T3 (es) 1998-04-03 2012-10-29 Tellabs Operations, Inc. Filtro para acortamiento de respuesta al impulso, con restricciones espectrales adicionales, para transmisión de múltiples portadoras
US6631175B2 (en) * 1998-04-03 2003-10-07 Tellabs Operations, Inc. Spectrally constrained impulse shortening filter for a discrete multi-tone receiver
US8134980B2 (en) 1998-06-01 2012-03-13 Ipr Licensing, Inc. Transmittal of heartbeat signal at a lower level than heartbeat request
US7773566B2 (en) 1998-06-01 2010-08-10 Tantivy Communications, Inc. System and method for maintaining timing of synchronization messages over a reverse link of a CDMA wireless communication system
JP4169393B2 (ja) * 1998-06-16 2008-10-22 アイコム株式会社 角度復調器
US6487235B2 (en) 1998-08-24 2002-11-26 At&T Wireless Services, Inc. Delay compensation
AT408396B (de) * 1998-12-21 2001-11-26 Ericsson Austria Ag Verfahren zur übertragung von daten
JP2000244441A (ja) * 1998-12-22 2000-09-08 Matsushita Electric Ind Co Ltd Ofdm送受信装置
FR2788907B1 (fr) * 1999-01-27 2001-04-13 St Microelectronics Sa Generation d'intervalle de garde dans une transmission en modulation dmt
US7106689B1 (en) 1999-03-02 2006-09-12 Matsushita Electric Industrial Co., Ltd. OFDM transmission/reception apparatus
JP4284568B2 (ja) 1999-03-18 2009-06-24 ソニー株式会社 受信装置および方法、並びに記録媒体
GB2348977A (en) * 1999-04-09 2000-10-18 Pixelfusion Ltd Parallel data processing systems with a SIMD array
US6356528B1 (en) 1999-04-15 2002-03-12 Qualcomm Incorporated Interleaver and deinterleaver for use in a diversity transmission communication system
US6952394B1 (en) 1999-05-25 2005-10-04 Samsung Electronics Co., Ltd. Method for transmitting and receiving orthogonal frequency division multiplexing signal and apparatus therefor
US6526034B1 (en) 1999-09-21 2003-02-25 Tantivy Communications, Inc. Dual mode subscriber unit for short range, high rate and long range, lower rate data communications
WO2001024410A1 (en) * 1999-09-29 2001-04-05 Samsung Electronics Co., Ltd System and method for compensating timing error using pilot symbol in ofdm/cdma communication system
RU2160509C1 (ru) * 2000-02-04 2000-12-10 Виноградов Сергей Михайлович Способ и устройство синтеза, передачи, приема, анализа и оценки многовариантных по форме, многопозиционных и локальных по спектру сигналов
WO2001058044A2 (en) 2000-02-07 2001-08-09 Tantivy Communications, Inc. Minimal maintenance link to support synchronization
US6687307B1 (en) 2000-02-24 2004-02-03 Cisco Technology, Inc Low memory and low latency cyclic prefix addition
US6529868B1 (en) * 2000-03-28 2003-03-04 Tellabs Operations, Inc. Communication system noise cancellation power signal calculation techniques
US6975585B1 (en) * 2000-07-27 2005-12-13 Conexant Systems, Inc. Slotted synchronous frequency division multiplexing for multi-drop networks
JP2002111622A (ja) * 2000-09-28 2002-04-12 Mitsubishi Electric Corp 通信装置および通信方法
US8155096B1 (en) 2000-12-01 2012-04-10 Ipr Licensing Inc. Antenna control system and method
US7551663B1 (en) 2001-02-01 2009-06-23 Ipr Licensing, Inc. Use of correlation combination to achieve channel detection
US6954448B2 (en) 2001-02-01 2005-10-11 Ipr Licensing, Inc. Alternate channel for carrying selected message types
CA2337737A1 (en) * 2001-02-05 2002-08-05 Catena Networks Canada Inc. Improved method for adapting the receiver demodulation structure according to the transmitter ifft size, in dmt-based adsl modems
US20020160737A1 (en) * 2001-03-06 2002-10-31 Magis Networks, Inc. Method and apparatus for diversity antenna branch selection
US20020136282A1 (en) * 2001-03-26 2002-09-26 Quang Nguyen Optimum UMTS modem
JP2002290367A (ja) * 2001-03-26 2002-10-04 Hitachi Kokusai Electric Inc 帯域分割復調方法及びofdm受信機
US20020138807A1 (en) * 2001-03-26 2002-09-26 Quang Nguyen Optimum UMTS modem
EP2479905B1 (de) 2001-06-13 2017-03-15 Intel Corporation Verfahren und vorichtungen zur Senden eines Herzschlagsignals mit einem niedrigeren Pegel als eine Herzschlaganförderung
US7072411B1 (en) 2001-12-04 2006-07-04 Cisco Technology, Inc. Computation reduction in OFDM system using frequency domain processing
US7130313B2 (en) * 2002-02-14 2006-10-31 Nokia Corporation Time-slice signaling for broadband digital broadcasting
US6907028B2 (en) * 2002-02-14 2005-06-14 Nokia Corporation Clock-based time slicing
US20030162543A1 (en) * 2002-02-28 2003-08-28 Nokia Corporation System and method for interrupt-free hand-over in a mobile terminal
US7844214B2 (en) * 2002-03-02 2010-11-30 Nokia Corporation System and method for broadband digital broadcasting
DK1529389T3 (en) * 2002-08-13 2016-05-30 Nokia Technologies Oy Symbol Interleaving
US7058034B2 (en) 2002-09-09 2006-06-06 Nokia Corporation Phase shifted time slice transmission to improve handover
US20040057400A1 (en) * 2002-09-24 2004-03-25 Nokia Corporation Anti-synchronous radio channel slicing for smoother handover and continuous service reception
WO2004056082A2 (en) * 2002-11-27 2004-07-01 Rgb Media, Inc. Method and apparatus for time-multiplexed processing of multiple digital video programs
WO2004095793A1 (en) * 2003-04-21 2004-11-04 Rgb Networks, Inc. Wideband multi-channel quadrature amplitude modulation of cable television signals
WO2004095825A2 (en) * 2003-04-21 2004-11-04 Rgb Networks, Inc. Time-multiplexed multi-program encryption system
EP1526669A4 (de) * 2003-06-16 2012-03-21 Panasonic Corp Digitaler zeichenempfänger
US20050009523A1 (en) * 2003-07-07 2005-01-13 Nokia Corporation Protocol using forward error correction to improve handover
CA2537280C (en) * 2003-08-29 2014-04-01 Rgb Networks, Inc. Advanced, self-balancing video multiplexer system
US7660583B2 (en) * 2004-03-19 2010-02-09 Nokia Corporation Advanced handover in phased-shifted and time-sliced networks
EP1744481A4 (de) * 2004-05-25 2012-08-29 Panasonic Corp Modulationsvorrichtung, modulationsverfahren und demodulationsvorrichtung
US7296045B2 (en) * 2004-06-10 2007-11-13 Hasan Sehitoglu Matrix-valued methods and apparatus for signal processing
US7684774B1 (en) * 2006-03-16 2010-03-23 Marvell International Ltd. Systems and methods for recovery of a sub-carrier signal from a stereophonic multiplexed signal
CN106027082A (zh) * 2016-07-08 2016-10-12 上海创远仪器技术股份有限公司 移动通信导频信号发生装置及方法
CN111163027B (zh) * 2019-12-26 2022-05-31 哈尔滨海能达科技有限公司 同步检测方法及装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6047513A (ja) * 1983-08-26 1985-03-14 Nec Corp 周波数ずれ吸収回路
JPS6337987A (ja) * 1986-08-01 1988-02-18 Ricoh Co Ltd インクシ−トとそれを用いる記録方式
JPS63158545A (ja) * 1986-08-05 1988-07-01 Fuji Photo Film Co Ltd ハロゲン化銀カラー写真感光材料
GB9020170D0 (en) * 1990-09-14 1990-10-24 Indep Broadcasting Authority Orthogonal frequency division multiplexing
US5228062A (en) * 1990-04-16 1993-07-13 Telebit Corporation Method and apparatus for correcting for clock and carrier frequency offset, and phase jitter in multicarrier modems
FR2670062B1 (fr) * 1990-11-30 1993-11-12 Thomson Csf Procede de recalage des oscillateurs locaux d'un recepteur et dispositif pour la mise en óoeuvre du procede.
US5315583A (en) * 1991-04-11 1994-05-24 Usa Digital Radio Method and apparatus for digital audio broadcasting and reception
JPH0583218A (ja) * 1991-09-20 1993-04-02 Oki Electric Ind Co Ltd オーソゴナル周波数分割多重方式の復調器
FR2707064B1 (de) * 1993-06-21 1996-03-08 France Telecom
US5444697A (en) * 1993-08-11 1995-08-22 The University Of British Columbia Method and apparatus for frame synchronization in mobile OFDM data communication

Also Published As

Publication number Publication date
DE69534066T2 (de) 2006-04-13
EP0982907B1 (de) 2005-03-09
DE69534066D1 (de) 2005-04-14
EP0682426A2 (de) 1995-11-15
DE69534067T2 (de) 2006-04-13
DE69534067D1 (de) 2005-04-14
EP0982908A2 (de) 2000-03-01
EP0682426B1 (de) 2001-10-24
EP0982907A3 (de) 2000-05-17
EP0682426A3 (de) 1999-06-16
DE69523365T2 (de) 2002-07-04
EP0982907A2 (de) 2000-03-01
US5732068A (en) 1998-03-24
EP0982908A3 (de) 2000-05-17
EP0982908B1 (de) 2005-03-09

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