DE69120401T2 - Sendung und empfang bei einer störenden interferenzumgebung - Google Patents
Sendung und empfang bei einer störenden interferenzumgebungInfo
- Publication number
- DE69120401T2 DE69120401T2 DE69120401T DE69120401T DE69120401T2 DE 69120401 T2 DE69120401 T2 DE 69120401T2 DE 69120401 T DE69120401 T DE 69120401T DE 69120401 T DE69120401 T DE 69120401T DE 69120401 T2 DE69120401 T2 DE 69120401T2
- Authority
- DE
- Germany
- Prior art keywords
- interference
- receiver
- ofdm
- pct
- carriers
- 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.)
- Revoked
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/2383—Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
-
- 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
- H04L27/2602—Signal structure
-
- 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
- H04L27/2647—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
- H04L27/2689—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation
- H04L27/2691—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation involving interference determination or cancellation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
- H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
- H04N7/0803—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division using frequency interleaving, e.g. with precision offset
Landscapes
- Signal Processing (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Noise Elimination (AREA)
- Television Systems (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Memory System Of A Hierarchy Structure (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Developing Agents For Electrophotography (AREA)
- Telephone Function (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Radar Systems Or Details Thereof (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Information Transfer Between Computers (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
- Details Of Television Systems (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB909007141A GB9007141D0 (en) | 1990-03-30 | 1990-03-30 | Broadcasting data |
GB909020170A GB9020170D0 (en) | 1990-09-14 | 1990-09-14 | Orthogonal frequency division multiplexing |
GB909020169A GB9020169D0 (en) | 1990-03-30 | 1990-09-14 | Broadcasting in a hostile environment |
PCT/GB1991/000513 WO1991015925A1 (en) | 1990-03-30 | 1991-04-02 | Transmission and reception in a hostile interference environment |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69120401D1 DE69120401D1 (de) | 1996-07-25 |
DE69120401T2 true DE69120401T2 (de) | 1997-01-02 |
Family
ID=27265019
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69120401T Revoked DE69120401T2 (de) | 1990-03-30 | 1991-04-02 | Sendung und empfang bei einer störenden interferenzumgebung |
Country Status (12)
Country | Link |
---|---|
US (1) | US5488632A (de) |
EP (1) | EP0521995B1 (de) |
JP (1) | JPH05505290A (de) |
KR (1) | KR100186803B1 (de) |
AT (1) | ATE139660T1 (de) |
AU (1) | AU651818B2 (de) |
CA (1) | CA2078445A1 (de) |
DE (1) | DE69120401T2 (de) |
FI (1) | FI924373A0 (de) |
HK (1) | HK1004312A1 (de) |
NO (1) | NO180789C (de) |
WO (1) | WO1991015925A1 (de) |
Families Citing this family (83)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5291289A (en) * | 1990-11-16 | 1994-03-01 | North American Philips Corporation | Method and apparatus for transmission and reception of a digital television signal using multicarrier modulation |
US5287180A (en) * | 1991-02-04 | 1994-02-15 | General Electric Company | Modulator/demodulater for compatible high definition television system |
AU693766B2 (en) * | 1992-01-08 | 1998-07-09 | Multichannel Communication Sciences, Inc. | Multichannel television signal scrambling and descrambling system and method |
DE69325224T2 (de) * | 1992-09-24 | 1999-11-11 | Canon Kk | Verfahren zur Frequenzkammspreizspektrummodulation |
FR2707064B1 (de) * | 1993-06-21 | 1996-03-08 | France Telecom | |
GB9313987D0 (en) * | 1993-07-07 | 1993-08-18 | British Broadcasting Corp | Imrpovements in signal transmission systems |
JP3371506B2 (ja) * | 1994-02-14 | 2003-01-27 | 株式会社日立製作所 | 受信装置 |
US5572264A (en) | 1994-02-14 | 1996-11-05 | Hitachi, Ltd. | High definition TV signal receiver |
US5666382A (en) * | 1994-02-28 | 1997-09-09 | Abb Daimler-Benz Transportation (North America) Inc. | Method and apparatus for communicating in the presence of power and propulsion system interference |
US6282683B1 (en) * | 1994-09-26 | 2001-08-28 | Adc Telecommunications, Inc. | Communication system with multicarrier telephony transport |
US6334219B1 (en) | 1994-09-26 | 2001-12-25 | Adc Telecommunications Inc. | Channel selection for a hybrid fiber coax network |
USRE42236E1 (en) | 1995-02-06 | 2011-03-22 | Adc Telecommunications, Inc. | Multiuse subcarriers in multipoint-to-point communication using orthogonal frequency division multiplexing |
US7280564B1 (en) | 1995-02-06 | 2007-10-09 | Adc Telecommunications, Inc. | Synchronization techniques in multipoint-to-point communication using orthgonal frequency division multiplexing |
FR2734109B1 (fr) * | 1995-05-10 | 1997-07-18 | France Telecom | Signal numerique multiporteuse limitant les brouillages cocanaux avec un signal de television analogique, et reception d'un tel signal |
GB9510127D0 (en) * | 1995-05-20 | 1995-08-02 | West End System Corp | CATV Data transmission system |
DE19601161A1 (de) * | 1995-05-27 | 1996-11-28 | Deutsche Telekom Ag | Verfahren zur Übertragung von Zusatzinformationen in TV-Kanälen |
JPH08331095A (ja) * | 1995-05-31 | 1996-12-13 | Sony Corp | 通信システム |
US6014412A (en) * | 1996-04-19 | 2000-01-11 | Amati Communications Corporation | Digital radio frequency interference canceller |
US6035000A (en) * | 1996-04-19 | 2000-03-07 | Amati Communications Corporation | Mitigating radio frequency interference in multi-carrier transmission systems |
US6055307A (en) * | 1996-06-28 | 2000-04-25 | At&T Corp. | System and method for selecting agent destinations and monitoring calls made to network customers |
US7548787B2 (en) * | 2005-08-03 | 2009-06-16 | Kamilo Feher | Medical diagnostic and communication system |
US6246729B1 (en) | 1998-09-08 | 2001-06-12 | Northrop Grumman Corporation | Method and apparatus for decoding a phase encoded data signal |
US6111919A (en) * | 1999-01-20 | 2000-08-29 | Intellon Corporation | Synchronization of OFDM signals |
US6074086A (en) * | 1999-04-26 | 2000-06-13 | Intellon Corporation | Synchronization of OFDM signals with improved windowing |
US6269132B1 (en) | 1999-04-26 | 2001-07-31 | Intellon Corporation | Windowing function for maintaining orthogonality of channels in the reception of OFDM symbols |
US6859504B1 (en) | 1999-06-29 | 2005-02-22 | Sharp Laboratories Of America, Inc. | Rapid settling automatic gain control with minimal signal distortion |
US6505037B1 (en) * | 1999-06-29 | 2003-01-07 | Sharp Laboratories Of America, Inc. | Data unit detection including antenna diversity |
US6278685B1 (en) | 1999-08-19 | 2001-08-21 | Intellon Corporation | Robust transmission mode |
US6442129B1 (en) | 1999-12-06 | 2002-08-27 | Intellon Corporation | Enhanced channel estimation |
CA2344117C (en) | 2000-04-12 | 2009-06-30 | Her Majesty The Queen In Right Of Canada As Represented By The Minister Of Industry | Method and system for tiered digital television terrestrial broadcasting services using multi-bit-stream frequency interleaved ofdm |
US6289000B1 (en) | 2000-05-19 | 2001-09-11 | Intellon Corporation | Frame control encoder/decoder for robust OFDM frame transmissions |
JP2001339320A (ja) * | 2000-05-25 | 2001-12-07 | Sony Corp | 干渉波除去回路とデジタルテレビ受信機 |
JP2001358692A (ja) | 2000-06-14 | 2001-12-26 | Nec Corp | 直交周波数分割多重変復調回路 |
EP1164762A1 (de) * | 2000-06-16 | 2001-12-19 | Abb Research Ltd. | Breitbandmodulationsverfahren |
US6909723B1 (en) | 2000-08-04 | 2005-06-21 | Intellon Corporation | Segment bursting with priority pre-emption and reduced latency |
US7298691B1 (en) | 2000-08-04 | 2007-11-20 | Intellon Corporation | Method and protocol to adapt each unique connection in a multi-node network to a maximum data rate |
US7352770B1 (en) * | 2000-08-04 | 2008-04-01 | Intellon Corporation | Media access control protocol with priority and contention-free intervals |
US6907044B1 (en) | 2000-08-04 | 2005-06-14 | Intellon Corporation | Method and protocol to support contention-free intervals and QoS in a CSMA network |
US7469297B1 (en) | 2000-08-04 | 2008-12-23 | Intellon Corporation | Mechanism for using a quasi-addressed response to bind to a message requesting the response |
US6987770B1 (en) | 2000-08-04 | 2006-01-17 | Intellon Corporation | Frame forwarding in an adaptive network |
FR2814303A1 (fr) | 2000-09-20 | 2002-03-22 | France Telecom | Signal multiporteuse a symbole de reference concu pour limiter l'interference, procede de reception, procede de construction, recepteur et dispositif correspondants |
FR2814302B1 (fr) | 2000-09-20 | 2003-02-07 | France Telecom | Signal multiporteuse a pilotes repartis concu pour limiter l'interference, procede de construction d'un signal, procede de reception, recepteur et dispositif d'emission correspondants |
US7107996B2 (en) * | 2001-04-10 | 2006-09-19 | Ganz Robert A | Apparatus and method for treating atherosclerotic vascular disease through light sterilization |
US6975583B2 (en) * | 2001-05-14 | 2005-12-13 | Intel Corporation | Technique for continuous OFDM modulation |
US7020218B2 (en) * | 2001-06-18 | 2006-03-28 | Arnesen David M | Sliding-window transform with integrated windowing |
FR2826223A1 (fr) * | 2001-06-19 | 2002-12-20 | Koninkl Philips Electronics Nv | Dispositif de reemission insofrequence d'un signal de television numerique terrestre |
AT412249B (de) * | 2001-08-30 | 2004-11-25 | Frequentis Nachrichtentechnik Gmbh | Verfahren und anordnung der übertragung von sprache und/oder daten |
US6990059B1 (en) | 2001-09-05 | 2006-01-24 | Cisco Technology, Inc. | Interference mitigation in a wireless communication system |
US7855948B2 (en) * | 2001-09-05 | 2010-12-21 | Cisco Technology, Inc. | Interference mitigation in a wireless communication system |
US8149703B2 (en) * | 2002-06-26 | 2012-04-03 | Qualcomm Atheros, Inc. | Powerline network bridging congestion control |
US7826466B2 (en) * | 2002-06-26 | 2010-11-02 | Atheros Communications, Inc. | Communication buffer scheme optimized for VoIP, QoS and data networking over a power line |
US7120847B2 (en) * | 2002-06-26 | 2006-10-10 | Intellon Corporation | Powerline network flood control restriction |
US7227835B2 (en) * | 2002-06-27 | 2007-06-05 | Thomson Licensing | Method and apparatus for adjacent channel interference reduction in an orthogonal frequency division multiplexing (OFDM) receiver |
AU2003284317A1 (en) | 2002-10-21 | 2004-05-13 | Intellon Corporation | Contention-free access intervals on a csma network |
KR20040044267A (ko) * | 2002-11-20 | 2004-05-28 | 삼성전자주식회사 | 직교 주파수 분할 다중 접속방식 시스템에 있어서 측부엽억제신호 발생장치 및 이를 채용하는 상향링크 통신장치 |
WO2004075460A2 (en) * | 2003-02-14 | 2004-09-02 | Focus Enhancements, Inc. | Method and apparatus for frequency division multiplexing |
US7539123B2 (en) * | 2003-06-27 | 2009-05-26 | Intel Corporation | Subcarrier puncturing in communication systems |
KR100498953B1 (ko) * | 2003-07-08 | 2005-07-04 | 삼성전자주식회사 | 불충분한 주기적 프리픽스를 사용하는 직교 주파수 분할다중화 시스템을 위한 송수신 장치 및 방법 |
US7281187B2 (en) | 2003-11-20 | 2007-10-09 | Intellon Corporation | Using error checking bits to communicated an address or other bits |
US8090857B2 (en) | 2003-11-24 | 2012-01-03 | Qualcomm Atheros, Inc. | Medium access control layer that encapsulates data from a plurality of received data units into a plurality of independently transmittable blocks |
US7660327B2 (en) * | 2004-02-03 | 2010-02-09 | Atheros Communications, Inc. | Temporary priority promotion for network communications in which access to a shared medium depends on a priority level |
US7715425B2 (en) * | 2004-02-26 | 2010-05-11 | Atheros Communications, Inc. | Channel adaptation synchronized to periodically varying channel |
US7251577B2 (en) * | 2004-07-19 | 2007-07-31 | Tektronix, Inc. | Realtime power mask trigger |
EP1787400A2 (de) * | 2004-08-27 | 2007-05-23 | Koninklijke Philips Electronics N.V. | Verfahren und vorrichtungen zur intrasystemischen und intersystemischen übertragung gleitender zwischenfrequenzen |
US7636370B2 (en) * | 2005-03-03 | 2009-12-22 | Intellon Corporation | Reserving time periods for communication on power line networks |
US9042461B2 (en) * | 2005-03-10 | 2015-05-26 | Qualcomm Incorporated | Efficient employment of digital upsampling using IFFT in OFDM systems for simpler analog filtering |
US8769046B2 (en) * | 2005-03-23 | 2014-07-01 | Qualcomm Incorporated | Methods and apparatus for using multiple wireless links with a wireless terminal |
US7590183B2 (en) * | 2005-05-12 | 2009-09-15 | Intellon Corporation | Generating signals for transmission of information |
EP1739908A1 (de) * | 2005-06-30 | 2007-01-03 | STMicroelectronics N.V. | Verfahren und Einrichtung zur Reduzierung der Interferenzen zwischen einem breitbandigen Gerät und einem störenden schmalbandigen Gerät |
US7822059B2 (en) | 2005-07-27 | 2010-10-26 | Atheros Communications, Inc. | Managing contention-free time allocations in a network |
US8175190B2 (en) | 2005-07-27 | 2012-05-08 | Qualcomm Atheros, Inc. | Managing spectra of modulated signals in a communication network |
EP2159966A1 (de) * | 2007-05-10 | 2010-03-03 | Intellon Corporation | Verwaltung verteilter Zugriffe auf ein gemeinsam genutztes Medium |
US9282274B2 (en) * | 2009-06-22 | 2016-03-08 | Entropic Communications, Llc | System and method for reducing intra-channel interference |
US8660013B2 (en) | 2010-04-12 | 2014-02-25 | Qualcomm Incorporated | Detecting delimiters for low-overhead communication in a network |
KR101222666B1 (ko) | 2010-06-01 | 2013-01-17 | 한국전자통신연구원 | 인접 채널간 간섭 억제를 위한 데이터 전송 방법 |
CN102137051B (zh) * | 2011-03-10 | 2013-03-20 | 上海交通大学 | 用于无线传感器网络的干扰检测方法及其检测装置 |
US8891605B2 (en) | 2013-03-13 | 2014-11-18 | Qualcomm Incorporated | Variable line cycle adaptation for powerline communications |
CA2921750C (en) * | 2013-08-22 | 2021-11-30 | Thomson Licensing | Low adjacent channel interference mode for a digital television system |
US10033511B2 (en) | 2014-10-29 | 2018-07-24 | FreeWave Technologies, Inc. | Synchronization of co-located radios in a dynamic time division duplex system for interference mitigation |
US9787354B2 (en) * | 2014-10-29 | 2017-10-10 | FreeWave Technologies, Inc. | Pre-distortion of receive signal for interference mitigation in broadband transceivers |
US9819446B2 (en) | 2014-10-29 | 2017-11-14 | FreeWave Technologies, Inc. | Dynamic and flexible channel selection in a wireless communication system |
US10149263B2 (en) | 2014-10-29 | 2018-12-04 | FreeWave Technologies, Inc. | Techniques for transmitting/receiving portions of received signal to identify preamble portion and to determine signal-distorting characteristics |
US9584170B2 (en) | 2014-10-29 | 2017-02-28 | FreeWave Technologies, Inc. | Broadband superhetrodyne receiver with agile intermediate frequency for interference mitigation |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2609228B1 (fr) * | 1986-12-24 | 1989-12-01 | France Etat | Procede de diffusion numerique dans des canaux de television |
IT1211612B (it) * | 1987-12-22 | 1989-11-03 | Esercizio Delle Telecomunicazi | Procedimento e dispositivo di decodifica con rivelazione di cancellature per sistemi di trasmissione multilivello |
US4881241A (en) * | 1988-02-24 | 1989-11-14 | Centre National D'etudes Des Telecommunications | Method and installation for digital communication, particularly between and toward moving vehicles |
US5053860A (en) * | 1988-10-03 | 1991-10-01 | North American Philips Corp. | Method and apparatus for the transmission and reception multicarrier high definition television signal |
US5063574A (en) * | 1990-03-06 | 1991-11-05 | Moose Paul H | Multi-frequency differentially encoded digital communication for high data rate transmission through unequalized channels |
-
1991
- 1991-04-02 JP JP3506510A patent/JPH05505290A/ja active Pending
- 1991-04-02 AU AU75845/91A patent/AU651818B2/en not_active Ceased
- 1991-04-02 US US07/940,874 patent/US5488632A/en not_active Expired - Lifetime
- 1991-04-02 AT AT91907056T patent/ATE139660T1/de not_active IP Right Cessation
- 1991-04-02 WO PCT/GB1991/000513 patent/WO1991015925A1/en not_active Application Discontinuation
- 1991-04-02 KR KR1019920702374A patent/KR100186803B1/ko not_active IP Right Cessation
- 1991-04-02 CA CA2078445A patent/CA2078445A1/en not_active Abandoned
- 1991-04-02 EP EP91907056A patent/EP0521995B1/de not_active Revoked
- 1991-04-02 DE DE69120401T patent/DE69120401T2/de not_active Revoked
-
1992
- 1992-09-29 FI FI924373A patent/FI924373A0/fi unknown
- 1992-09-29 NO NO923788A patent/NO180789C/no unknown
-
1998
- 1998-04-24 HK HK98103456A patent/HK1004312A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0521995B1 (de) | 1996-06-19 |
US5488632A (en) | 1996-01-30 |
CA2078445A1 (en) | 1991-10-17 |
NO180789B (no) | 1997-03-10 |
NO180789C (no) | 1997-06-18 |
AU651818B2 (en) | 1994-08-04 |
AU7584591A (en) | 1991-10-30 |
HK1004312A1 (en) | 1998-11-20 |
DE69120401D1 (de) | 1996-07-25 |
NO923788D0 (no) | 1992-09-29 |
JPH05505290A (ja) | 1993-08-05 |
EP0521995A1 (de) | 1993-01-13 |
WO1991015925A1 (en) | 1991-10-17 |
ATE139660T1 (de) | 1996-07-15 |
FI924373A (fi) | 1992-09-29 |
NO923788L (no) | 1992-11-27 |
FI924373A0 (fi) | 1992-09-29 |
KR100186803B1 (ko) | 1999-05-01 |
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