ES2131087T3 - Procedimiento de difusion de datos numericos, principalmente para la radiodifusion a alta velocidad hacia receptores moviles con entrelazado tiempo-frecuencia. - Google Patents
Procedimiento de difusion de datos numericos, principalmente para la radiodifusion a alta velocidad hacia receptores moviles con entrelazado tiempo-frecuencia.Info
- Publication number
- ES2131087T3 ES2131087T3 ES93116353T ES93116353T ES2131087T3 ES 2131087 T3 ES2131087 T3 ES 2131087T3 ES 93116353 T ES93116353 T ES 93116353T ES 93116353 T ES93116353 T ES 93116353T ES 2131087 T3 ES2131087 T3 ES 2131087T3
- Authority
- ES
- Spain
- Prior art keywords
- elements
- numerical
- dissemination
- frequency
- source sequence
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
- H04H20/57—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for mobile receivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/02—Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linking to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information
- H04H60/07—Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linking to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information characterised by processes or methods for the generation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0602—Systems characterised by the synchronising information used
- H04J3/0614—Systems characterised by the synchronising information used the synchronising signal being characterised by the amplitude, duration or polarity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0071—Use of interleaving
-
- 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
- H04L27/2656—Frame synchronisation, e.g. packet synchronisation, time division duplex [TDD] switching point detection or subframe 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
- H04L27/2681—Details of algorithms characterised by constraints
- H04L27/2688—Resistance to perturbation, e.g. noise, interference or fading
-
- 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
- H04L5/02—Channels characterised by the type of signal
- H04L5/023—Multiplexing of multicarrier modulation signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H2201/00—Aspects of broadcast communication
- H04H2201/10—Aspects of broadcast communication characterised by the type of broadcast system
- H04H2201/20—Aspects of broadcast communication characterised by the type of broadcast system digital audio broadcasting [DAB]
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Error Detection And Correction (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Mobile Radio Communication Systems (AREA)
- Noise Elimination (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
EL DOMINIO DE LA INVENCION ES EL DE LA DIFUSION DE DATOS NUMERICOS DESTINADOS A SER RECIBIDOS SOBRE TODO POR MOVILES QUE CIRCULAN EN MEDIO URBANO, ES DECIR EN PRESENCIA DE PARASITOS Y DE INTERFERENCIA, Y EN CONDICIONES DE MULTIPROPAGACION (PROCESOS DE RAYLEIGH). LA INVENCION CONCIERNE A UN PROCESO DE DIFUSION NUMERICA EN EL CUAL LOS DATOS ESTAN REPARTIDOS EN FORMA DE ELEMENTOS NUMERICOS EN EL ESPACIO FRECUENCIA F MISION DE TRAMAS DE SIMBOLOS CONSTITUIDOS CADA UNO POR UN MULTIPLEX DE FRECUENCIAS PORTADORAS ORTOGONALES MODULADAS POR UNA SERIE DE ELEMENTOS NUMERICOS, Y DIFUNDIDAS SIMULTANEAMENTE SOBRE J VIAS PARALELAS, LA MODULACION ES UNA MODULACION DE GASES CON CUATRO ESTADOS DE FASE, CADA FRECUENCIA PORTADORA DE DICHO MULTIPLEX ESTA MODULADA POR UN PAR DE ELEMENTOS NUMERICOS. DICHOS PARES DE ELEMENTOS NUMERICOS ESTAN CONSTITUIDOS A PARTIR DE UNA SECUENCIA FUENTE DE ELEMENTOS NUMERICOS QUE CONSTITUYEN PAQUETES DE 2J ELEMENTOS CONSECUTIVOS EN DICHA SECUENCIA FUENTE, Y QUE ASOCIAN ELEMENTOS DOS A DOS EN CADA PAQUETE SEGUN UN CRITERIO DE MAXIMIZACION DE DISPERSION DE LOS ELEMENTOS NUMERICOS ADYACENTES DE LA SECUENCIA FUENTE. LOS MODOS DE ENTRELAZAMIENTO FRECUENCIAL Y TEMPORAL ESTAN IGUALMENTE PRESENTES.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8815216A FR2639495B1 (fr) | 1988-11-18 | 1988-11-18 | Procede de diffusion de donnees numeriques, notamment pour la radiodiffusion a haut debit vers des mobiles, a entrelacement temps-frequence et synchronisation analogique |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2131087T3 true ES2131087T3 (es) | 1999-07-16 |
Family
ID=9372121
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES93116353T Expired - Lifetime ES2131087T3 (es) | 1988-11-18 | 1989-11-17 | Procedimiento de difusion de datos numericos, principalmente para la radiodifusion a alta velocidad hacia receptores moviles con entrelazado tiempo-frecuencia. |
ES89460041T Expired - Lifetime ES2069605T3 (es) | 1988-11-18 | 1989-11-17 | Procedimiento de difusion de datos numericos, principalmente para la radiodifusion a alto flujo hacia receptores moviles con entrelazamientos tiempo-frecuencia y sincronizacion analogica. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES89460041T Expired - Lifetime ES2069605T3 (es) | 1988-11-18 | 1989-11-17 | Procedimiento de difusion de datos numericos, principalmente para la radiodifusion a alto flujo hacia receptores moviles con entrelazamientos tiempo-frecuencia y sincronizacion analogica. |
Country Status (4)
Country | Link |
---|---|
EP (2) | EP0600193B1 (es) |
DE (2) | DE68928995T2 (es) |
ES (2) | ES2131087T3 (es) |
FR (1) | FR2639495B1 (es) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2670969B1 (fr) * | 1990-12-19 | 1993-04-16 | France Etat | Systeme de transmission de donnees par repartition dans l'espace temps-frequence, avec structuration en canaux. |
FR2671923B1 (fr) * | 1991-01-17 | 1993-04-16 | France Etat | Dispositif de demodulation coherente de donnees numeriques entrelacees en temps et en frequence, a estimation de la reponse frequentielle du canal de transmission et seuillage, et emetteur correspondant. |
DE4128713A1 (de) * | 1991-08-29 | 1993-03-04 | Daimler Benz Ag | Verfahren und anordnung zur messung der traegerfrequenzablage in einem mehrkanaluebertragungssystem |
DE4138770A1 (de) * | 1991-11-26 | 1993-05-27 | Daimler Benz Ag | Verfahren zur digitalen datenuebertragung im nullsymbol des cofdm-modulationsverfahrens |
FR2690029B1 (fr) * | 1992-04-08 | 1995-03-31 | France Telecom | Procédé de transmission de données numériques de radiomessagerie, et récepteur de radiomessagerie correspondant. |
EP0578313B1 (fr) * | 1992-07-08 | 1998-12-02 | Laboratoires D'electronique Philips S.A.S. | Codage enchaíné, pour la transmission OFDM |
GB9219466D0 (en) * | 1992-09-15 | 1992-10-28 | British Broadcasting Corp | Radio transmission systems |
DE69434306T2 (de) * | 1993-01-20 | 2005-11-10 | Koninklijke Philips Electronics N.V. | Verfahren zur Abtrennung einer Blockfrequenz aus einem blockformattierten Signal |
FR2702110B1 (fr) * | 1993-02-22 | 1995-06-30 | France Telecom | Procede de controle automatique de frequence pour la reception de signaux multiporteuses, et recepteur correspondant. |
DE69424706T2 (de) * | 1993-03-17 | 2001-01-11 | Koninklijke Philips Electronics N.V., Eindhoven | Empfänger für differenziel kodierte PSK Signale |
US5450456A (en) * | 1993-11-12 | 1995-09-12 | Daimler Benz Ag | Method and arrangement for measuring the carrier frequency deviation in a multi-channel transmission system |
DE4405752C1 (de) * | 1994-02-23 | 1994-08-25 | Grundig Emv | Verfahren und Schaltungsanordnung zur digitalen Rahmensynchronisation |
FI96372C (fi) * | 1994-06-16 | 1996-06-10 | Nokia Technology Gmbh | Kehystahdistus digitaalisia radiolähetyksiä vastaanottavassa laitteessa |
DE4425713C1 (de) * | 1994-07-20 | 1995-04-20 | Inst Rundfunktechnik Gmbh | Verfahren zur Vielträger Modulation und Demodulation von digital codierten Daten |
FR2742613B1 (fr) * | 1995-12-14 | 1998-01-30 | France Telecom | Procede d'evaluation d'un facteur de qualite representatif d'un canal de transmission d'un signal numerique, et recepteur correspondant |
DE19639309B4 (de) * | 1996-09-25 | 2013-12-05 | Rohde & Schwarz Gmbh & Co. Kg | Verfahren zum Bestimmen der zeitlichen Lage einer Synchronisationsfolge in einem empfangenen Datenstrom mittels Rahmensynchronisation |
FR2757725B1 (fr) * | 1996-12-20 | 2001-10-05 | Thomson Csf | Procede hierarchique de transmission et de radiodiffusion numerique d'emission radiophoniques |
DE19933535A1 (de) * | 1999-07-16 | 2001-01-25 | Polytrax Inf Technology Ag | Synchronisationsverfahren zur Datenübertragung |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL87566C (es) * | 1950-05-18 | |||
FR1443881A (fr) * | 1963-10-15 | 1966-07-01 | Telefunken Patent | Procédé de transmission d'informations |
FR2604316B2 (fr) * | 1986-07-02 | 1989-05-05 | France Etat | Procede et installation de communication de donnees numeriques vers des mobiles |
-
1988
- 1988-11-18 FR FR8815216A patent/FR2639495B1/fr not_active Expired - Lifetime
-
1989
- 1989-11-17 ES ES93116353T patent/ES2131087T3/es not_active Expired - Lifetime
- 1989-11-17 EP EP93116353A patent/EP0600193B1/fr not_active Expired - Lifetime
- 1989-11-17 EP EP89460041A patent/EP0369917B1/fr not_active Expired - Lifetime
- 1989-11-17 DE DE68928995T patent/DE68928995T2/de not_active Expired - Lifetime
- 1989-11-17 ES ES89460041T patent/ES2069605T3/es not_active Expired - Lifetime
- 1989-11-17 DE DE68921299T patent/DE68921299T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0369917A2 (fr) | 1990-05-23 |
DE68928995D1 (de) | 1999-06-17 |
FR2639495B1 (fr) | 1993-12-17 |
EP0600193A3 (en) | 1994-07-20 |
EP0369917A3 (en) | 1990-11-28 |
EP0369917B1 (fr) | 1995-02-22 |
DE68921299T2 (de) | 1995-09-21 |
FR2639495A1 (fr) | 1990-05-25 |
EP0600193A2 (fr) | 1994-06-08 |
EP0600193B1 (fr) | 1999-05-12 |
DE68928995T2 (de) | 2000-01-13 |
DE68921299D1 (de) | 1995-03-30 |
ES2069605T3 (es) | 1995-05-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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