EP2605431B1 - Unité d'émission par satellite, unité de réception par satellite, procédé de production et/ou d'envoi d'un courant de données de sortie et procédé de réception et de décodage d'un signal à large bande - Google Patents

Unité d'émission par satellite, unité de réception par satellite, procédé de production et/ou d'envoi d'un courant de données de sortie et procédé de réception et de décodage d'un signal à large bande Download PDF

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Publication number
EP2605431B1
EP2605431B1 EP12196727.7A EP12196727A EP2605431B1 EP 2605431 B1 EP2605431 B1 EP 2605431B1 EP 12196727 A EP12196727 A EP 12196727A EP 2605431 B1 EP2605431 B1 EP 2605431B1
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European Patent Office
Prior art keywords
pilot
data packets
data
header
data packet
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EP12196727.7A
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German (de)
English (en)
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EP2605431A2 (fr
EP2605431A3 (fr
Inventor
Gerhard Dr. Mocker
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Work Microwave GmbH
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Work Microwave GmbH
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Publication of EP2605431A3 publication Critical patent/EP2605431A3/fr
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/44—Arrangements characterised by circuits or components specially adapted for broadcast
    • H04H20/46—Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups H04H20/53-H04H20/95
    • H04H20/51—Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups H04H20/53-H04H20/95 specially adapted for satellite broadcast systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/71—Wireless systems
    • H04H20/74—Wireless systems of satellite networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
    • H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
    • H04H40/90—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for satellite broadcast receiving

Definitions

  • the invention relates to a satellite transmitting unit, a satellite receiving unit, a method for generating and / or sending an output data stream and a method for receiving and decoding a wideband signal.
  • DVB Digital Video Broadcasting
  • DVB-S Digital Video Broadcasting
  • ETSI EN 302 307 European standard entitled “Digital Video Broadcasting (DVB); Second Generation Framing Structure," channel coding and modulation system for Broadcasting, Interactive Services, News Gathering and other broadband satellite applications (DVB-S2) ".
  • ETSI EN 302 307 European standard entitled “Digital Video Broadcasting (DVB); Second Generation Framing Structure," channel coding and modulation system for Broadcasting, Interactive Services, News Gathering and other broadband satellite applications (DVB-S2)
  • WO 2010/128420 A2 and WO 2010/049858 A2 known. It is a constant concern in communication technology to increase the transmission bandwidths, to offer more services and the To optimize the reliability of the system. Furthermore, better transmission technologies are trying to provide consistent quality services with lower bandwidth. Also, it is endeavored to provide a high operator comfort (for example, fast station change) with the lowest possible computing power.
  • An essential aspect of the present invention may be to include in header packets information regarding the input data stream so that unnecessary payload data packets can be quickly recognized and discarded.
  • BB Frame Base Band Frame
  • FEC Forward Error Correction
  • the Fig. 1 shows the bit layer or physical layer structure of a raw data stream according to the DVB-S2 standards.
  • the length of a data stream depends largely on the type of modulation and / or coding used (eg QPSK, 8PSK, 16APSK, 32APSK, 64xxx) and / or the length of the baseband data packet and other parameters.
  • the pilot data packets are also recognizable after a modulation on a carrier signal.
  • the modulating of the carrier signal can take place in a modulator device.
  • the linking device can be designed so that when generating the output data stream in each case a pair of pilot data packets a predetermined number of data packets, in particular two, three, four, five, six, seven, eight, nine, ten, eleven, twelve data packets and / or Multiples of the numbers, two, three and / or five enclose. It can be advantageous if the pilot data packets each encapsulate a constant number of data packets, in particular user data packets and header data packets. Thereby, the decoding and demodulating process can be further simplified.
  • the satellite transmission unit may comprise a header data generating device for generating a header packet (eg PL Header: Physical Layer Header) having a header length preferably corresponding to the payload packet length, wherein the linkage means is for merging the payload packets, header packets and the pilot data packets. wherein at least one pair of pilot data packets includes a plurality of payload packets and at least one header packet.
  • a header data generating device for generating a header packet (eg PL Header: Physical Layer Header) having a header length preferably corresponding to the payload packet length
  • the linkage means is for merging the payload packets, header packets and the pilot data packets.
  • at least one pair of pilot data packets includes a plurality of payload packets and at least one header packet.
  • a header data packet and several user data can be included.
  • only user data packets can be arranged between two pilot data packets. It is preferable if the individual data packets, in particular the header data packets and the user data packets have the same length, so that it can be easily ensured that the pilot data packets have the same distances from each other. For example, the already mentioned number of data packets between the pairs of pilot data packets makes sense. It is obvious that according to the invention a pilot data packet can mark both the beginning of a first sequence of data packets and the end of a second sequence of data packets. It is not necessary for the pilot data packets to differ depending on their function - marking the end and / or marking the beginning.
  • the transmission unit according to the invention thus provides a uniform slot grid or data slot grid.
  • the header data generating device for generating header data packets is designed to include information relating to the input data stream, in particular with regard to the modulation methods used.
  • the Input Stream Identifier (ISI) may be included in the header packet to allow early demultiplexing through this information.
  • the payload packet length and / or header packet length may be unequal or equal to 90 symbols, preferably an integer multiple or integer divided of 90 and / or 270 symbols. Alternatively or additionally, the payload packet length and / or header packet length may be an integer multiple of the numbers 2, 3, 5, 10, 30, 45, 90, 180 or 270.
  • symbols can be understood as defined in the ETSI EN 302 307 standard.
  • the selected number of symbols allows you to transmit significantly more data, while maintaining high compatibility with the DVB-S2 system.
  • the pilot generating means for generating the pilot data packets may select pilot patterns from a predetermined set of pilot patterns, wherein the set preferably comprises a cardinality of pilot patterns that is less than or equal to 10, in particular less than or equal to 8, in particular less than or equal to 4.
  • the satellite transmitting unit can store various pilot patterns used to generate the pilot data packets.
  • pilot patterns For a quick and easy communication between a transmitting unit and a receiving unit, it is preferable to specify pilot patterns. In particular, it is possible to dispense with scrambling in the pilot data packets.
  • a small number of differing pilot patterns may be preferable, since a high signal margin can be achieved depending on the number of bits used.
  • the pilot generation device can take into account the presence of at least one header data packet in the data packets following the generated pilot data packet. For example, the pilot generation device can distinguish between two cases: a) The data packets following a pilot data packet (up to the next pilot data packet) comprise a header packet and b) the data packets following a pilot data packet (up to a next pilot packet) do not include a header packet. Depending on which case, another pilot pattern can be selected. Preferably, at N positions or slots between a pair of header data packets, N + 1 pilot patterns are used.
  • the pilot generation device can take into account the position of the header data packet in the subsequent data packets in the selection of the pilot pattern for the pilot data packets. For example, assuming that the three data packets each are included between a pair of pilot data packets, the pilot pattern may vary depending on the position of the header packet relative to the position of the pilot data packet. Thus, a first / second / third pilot pattern may indicate that the header data packet is at first, second, and third positions, respectively, from the corresponding pilot data packet.
  • a correlation method can be used on the side of the receiving unit in order to draw conclusions as to whether and at which point within the slots or position after the pilot a header data packet can be found. This then allows for the beginning of an output data stream already at the signal level draw conclusions. The subsequent next header packet may then signal that the output data stream is over.
  • a partial demodulation of the raw data signal takes place, which makes it possible to select (larger) sections of the raw data signal which are relevant for the respective satellite receiving unit. Not all received data and signal need to be demodulated and / or decoded. It is possible to first decode some (short) signal sections and to determine from this which further data must be demodulated and decoded.
  • the demultiplexer may include a synchronization device that correlates the raw data signal with at least one pilot pattern to identify portions of payload data packets.
  • a synchronization device that correlates the raw data signal with at least one pilot pattern to identify portions of payload data packets.
  • pilot data packets or signal sections with Pilot data packets are recognized, which identify the beginning and end of the user data packets or signal sections with the user data packets.
  • the correlation may be further used to detect clocking of the modulated signal. In this respect, it is possible to significantly reduce the computational effort for the synchronization and the recognition of the relevance of specific data streams.
  • a synchronization can be ensured by analog components.
  • the demultiplexer may be configured to correlate the raw data signal with at least a first pilot pattern and at least one second pilot pattern to determine whether a portion of the raw data stream includes header data packets.
  • the pilot patterns may be bit patterns, spectral patterns, frequency patterns, etc. Multiple pilot patterns may be used in the correlation to obtain more detailed information regarding individual portions of the raw data signal. For example, further pilot patterns can be used to find out the position of the header packet or the signal section with the header packet after the detection of a section containing several data packets.
  • the satellite receiving device may comprise a descrambler device for decoding scrambled data packets, wherein the demultiplexer device decides, based on information obtained from the header data packets, whether a specific data packet and / or a specific signal section is supplied to the descrambler device for further processing. For example, it is therefore possible to determine in advance whether a particular signal section having a specific output data stream is relevant for the respective receiving unit, so that only the output data streams must be decoded by means of the demodulator device and the descrambler, which are classified as relevant.
  • the data of the header data packet is not scrambled, so that the demultiplexer device is able to recognize on the basis of a pilot packet and / or pilot pattern that certain packets (eg the header data packet) need not be decoded or descrambled.
  • a correspondingly generated output data stream from the corresponding satellite receiver unit can be used to detect the timing of the bit signal and to filter out relevant data packets.
  • the output data stream can be supplied to a modulator device in order to modulate the data stream to a carrier signal.
  • a modulator device in order to modulate the data stream to a carrier signal.
  • the step d) can take place such that a pilot data packet is followed by a predefined number of data packets, in particular user data packets and / or header packets, before another pilot data packet is inserted, the number of data packets preferably being two, three, four, five, six, seven , eight, nine, ten, eleven, twelve, and / or a multiple of the number two, three, and / or five.
  • the payload packet length and / or header packet length may be unequal or equal to 90 symbols, preferably an integer multiple or integer division of the numbers 90 and / or 270.
  • the pilot pattern can thus make up a part of the pilot data packet or fill it in total.
  • the premature discarding of signal portions can rapidly process the relevant data (e.g., second output data).
  • Step b) may comprise correlating the raw data signal with predetermined pilot patterns to divide the raw data signal into sections of data packets and / or header packets.
  • Fig. 1 shows a raw data stream 8 according to the standard ETSI EN 302 307.
  • an XFECFRAME as input data stream 1 with a length of S x 90 symbols on a raw data stream 8 comprising an output data stream 3 is mapped.
  • the XFECFRAME was first split into S slots, namely the slots labeled "Slot-1", “Slot -", “Slot-16", ..., "Slot-S”.
  • a standard header packet 56 (referred to as "PLHEADER") was created and prefixed to the first slot.
  • the individual slots thus correspond to user data packets which carry the reference numbers 4 to 4.
  • each slot has space for a user data packet 4, 4 ', 4 "of length 90 symbols.
  • Pilot data packets 7 to 7 '" were optionally inserted at intervals of 16 slots each. Specifically, the user data packet 4 "with the designation" slot 16 "is followed by an optional pilot data packet with the designation" pilot block “and the reference symbol 7.
  • the optional pilot data packets 7 to 7 '" are always spaced apart from the previous header data packet 56 Because of the possible different lengths of the data streams and the fact that the data streams do not comprise an integer multiple of 16 slots, the optional pilot data packets 7 to 7 '''within the overall data stream do not occur at a uniform spacing Fig. 1 allows an initial synchronization, which mainly by a in the header data 56th uniform pattern (SOF) is ensured.
  • SOF uniform pattern
  • header data packet 5 it is necessary to find the header data packet 5 and further header data packets 5, 5 ', 5 ". Whether an output data stream should continue to be used can not be decided until, after demodulation and decoding, the data is evaluated in header data packet 56 of a higher transmission penalty (BBHEADER) In the end, therefore, starting from a modulated carrier signal 9, the entire signal must be demodulated and decoded.
  • BBHEADER transmission penalty
  • Fig. 2 shows a raw data stream 8 according to the invention, wherein a plurality of output data streams 3 are included.
  • a first output data stream 3 extends from a first header data packet 5 to a second header data packet 5 '.
  • a second output data stream 3 extends from the second header data packet 5 'to the third header data packet 5 ", which in turn marks the beginning of a third output data stream 3.
  • the header data packets 5, 5 ', 5 ", referred to as” PLHEADER " each have the same length of, for example, 270 symbols, as well as the individual payload data packets 4, 4', 4" which fill the individual slots.
  • the raw data stream 8 is structured in such a way that pilot data packets 7, 7 ', 7 ", 7''' are inserted at regular intervals Fig. 2 shown embodiment, a first pilot data packet 7 three data packets, namely the first header data packet 5, the first user data packet 4 and the second user data packet 4 '. This is followed by the second pilot data packet 7 'and further user data packets, for example the user data packet 4 ".” After three data packets, the third pilot data packet 7 "follows. This pattern with regular pilot data packets 7, 7 ', 7 ", 7”' continues over the entire raw data stream 8.
  • the pilot data packets 7, 7 ', 7 ", 7''' have a constant pilot data packet length, eg of 20 symbols .
  • the generated raw data stream 8 can be modulated onto a carrier signal for generating a modulated carrier signal 9.
  • the individual pilot data packets 7 to 7 '''in to identify modulated carrier signal 9 and thus to determine the position of the carrier signal 9.
  • pilot data packets 7 to 7 '' ' can be stored and used.
  • Pilot data packet type importance T0 No header data within the next three slots T1
  • the header data packet is in slot no. 1 T2
  • the header data packet is in slot no. 2 T3
  • the header data packet is in slot number 3
  • pilot data packets which are distinguished by their bit pattern.
  • bit patterns are tuned to the transfer layer.
  • the four different pilot data packets indicate whether there is a header data packet 5, 5 ', 5 "in the subsequent slots or the following data packets Fig. 2 that the first header data packet 5 is in the first slot, ie immediately after the first pilot data packet 7.
  • the second pilot data packet 7 ' indicates that the subsequent slots do not contain header data packets 5, 5', 5 ".
  • the third pilot data packet 7" indicates that the second header data packet 5 'is located in the second slot after the third header data packet 5 " another pilot data packet 7 '''indicates that the third header data packet 5 "is in the third slot, that is, in the third data packet position after the pilot data packet 7'".
  • the type of pilot data packets 7 to 7 ''' can also be determined on the basis of a correlation, preferably at the frequency level, so that the individual header data packets 5, 5', 5 "within the raw data stream 8 and / or a signal section 9a of the modulated carrier signal 9 can be determined very quickly and easily.
  • the header data packets 5, 5 ', 5 "contain information relating to the associated output data streams 3.
  • the earlier input data information field (ISI) may be included in the header packets 5, 5', 5".
  • ISI earlier input data information field
  • these bits, bytes or symbols can be demodulated without the entire output data stream 3 or raw data stream 8 must be demodulated.
  • the Fig. 3 shows a satellite transmitting unit 10 according to the invention in this an input data stream 1, for example, an XFECFRAME, is entered.
  • This input data stream 1 arrives at a packet splitting device 12, which splits this input data stream 1 into a plurality of user data packets 4, 4 ', 4 "with a constant user data packet length. It also receives at least one header data packet 5 relating to the input data stream 1 and containing information in this respect.
  • the header data packet 5 can specify an applied coding and / or modulation method and the membership of a specific part of the overall data stream.
  • suitable pilot data packets 7, 7 ', 7 ", 7" are provided to the linking device 18 by a pilot generation device 17.
  • the linking device 18 links this data to an output data stream 3, as already described with reference to FIG Fig. 2 was explained.
  • the satellite transmission unit 10 can generate a plurality of output data streams 3 and link these together to form a raw data stream 8.
  • the output data stream 3 and / or raw data stream 8 is then forwarded to a scrambler 16 (scrambler) which at least partially scrambles the output data stream 3 and / or raw data stream 8. It may be advantageous if certain sections, for example the header data packet 5 and / or the pilot data packets 7, 7 ', 7 ", 7''' are not scrambled, since these can then be located more easily.
  • 5 "and / or the pilot data packets 7, 7 ', 7", 7''' are selected such that scrambling or scrambling is unnecessary, resulting in an output data stream 3 or raw data stream 8 based on a transmitter 11 with associated modulator device 19 can be transmitted.
  • the transmitted signals can be received as modulated carrier signals 9 from a satellite receiving unit 40.
  • the Fig. 4 shows an exemplary embodiment of a corresponding satellite receiving unit 40.
  • a modulated carrier signal 9 is received by a receiving device 41 and processed.
  • the receiving device then supplies the modulated carrier signal 9 which contains the / a raw data stream 8 to the demultiplexer device 42 according to the invention.
  • This determines the positions of the pilot data packets 7 to 7 "'using correlation methods, wherein the individual sections with the pilot data packets 7 to 7 preferably at signal level Inherently, this also results in the beginning and the end of data packets included between the pilot data packets 7 to 7 '''.
  • the satellite receiver unit 40 uses correlation methods to determine, based on the different pilot data packet types with corresponding pilot patterns, the exact position of the header data packets 5, 5 ', 5 ", as described, for example, in US Pat Fig. 2 are shown to determine.
  • a found signal section or section 9a of the modulated carrier signal 9 with the header data packet 5 can then be forwarded to a demodulator device 43 which decodes the header data packet 5 and determines whether the output data stream 3 belonging to the header data packet 5 is relevant. Accordingly, a feedback 6 is output to the demultiplexer 42 according to the invention.
  • a larger portion 9b is forwarded to the demodulator device 43 with the output data stream 3 of the modulated carrier signal 9 for further processing. If the output data stream 3 is not relevant, the associated section 9b is rejected by the demuliplexer 42. It is also possible that the demodulator 43 receives the decoded header data packet 5 and decides how to proceed with the associated output data stream 3. Also, at the signal level without demodulation, eg by correlation, a corresponding decision can be made.
  • the satellite receiver unit 40 can have a suitable data buffer which buffers the output data stream 3 until it is either discarded or further processed.
  • a decoder 44 is used.
  • Corresponding decoding may also be necessary in the preprocessing step when processing the header data packets 5, 5 ', 5 ", in which case a corresponding decoding may be initiated by the demultiplexer device 42.
  • a header data packet 5, 5 ', 5 may contain any information relating to the input data stream 1.
  • information relating to the modulation and / or coding method used may be included
  • information relating to the membership of the data stream may be included in a larger entity It would be conceivable to include an input current identifier (ISI) or any value (eg a hash value) of the input current identifier (ISI).

Claims (12)

  1. Unité d'émission par satellite, comprenant :
    - un dispositif de répartition par paquets (12) pour la production de paquets de données utiles (4, 4', 4") ayant une longueur de paquet de données utiles définie à partir d'un flux de données d'entrée (1), à savoir un XFECFRAME ;
    - un dispositif de production pilote (17) pour la production de paquets de données pilotes (7 à 7''') ;
    - un dispositif de production de données d'en-tête (15) pour la production de paquets de données d'en-tête (5, 5', 5"), respectivement sous la forme d'un PLHEADER, avec des informations relatives au procédé de modulation et au procédé de codage employés ;
    - un dispositif de liaison (18) pour le regroupement des paquets de données utiles (4, 4', 4"), du paquet de données d'en-tête (5, 5', 5") et des paquets de données pilotes (7 à 7''') en un flux de données de sortie (3), sachant qu'au moins une paire de paquets de données pilotes (7 à 7''') comprend une pluralité de paquets de données utiles (4, 4', 4") et au moins un paquet de données d'en-tête (5, 5', 5"),
    - un émetteur (11) avec dispositif modulateur, sachant que le flux de données de sortie (3) est amené au dispositif modulateur pour transmission ;
    caractérisée en ce que
    des informations relatives à l'appartenance des paquets de données utiles (4, 4', 4") à un flux de données total déterminé et/ou à une partie déterminée du flux de données total par l'insertion d'un identifiant de flux d'entrée (ISI) ou d'une valeur dérivée de l'identifiant de flux d'entrée (ISI) sont contenues dans le paquet de données d'en-tête (5, 5', 5").
  2. Unité d'émission par satellite selon la revendication 1,
    caractérisée en ce que
    le dispositif de liaison (18) est configuré pour que, lors de la production du flux de données de sortie (3), respectivement une paire de paquets de données pilotes (7 à 7''') comprenne un nombre spécifié de paquets de données.
  3. Unité d'émission par satellite selon l'une des revendications précédentes,
    caractérisée en ce que
    les paquets de données pilotes (7 à 7"') respectifs présentent une distance constante les uns par rapport aux autres et comprennent par paire une pluralité de paquets de données utiles (4, 4', 4").
  4. Unité d'émission par satellite selon l'une des revendications précédentes,
    caractérisée en ce que
    le dispositif de production pilote (17) sélectionne, pour la production des paquets de données pilotes (7 à 7'''), des modèles de pilote à partir d'un jeu spécifié de modèles de pilote, sachant que le jeu comprend de préférence une cardinalité de modèles de pilote qui est inférieure ou égale à 10.
  5. Unité d'émission par satellite selon la revendication 4,
    caractérisée en ce que
    le dispositif de production pilote (17), lors de la sélection du modèle de pilote, considère la présence d'au moins un paquet de données d'en-tête (5, 5', 5") dans les paquets de données consécutifs au paquet de données pilotes (7 à 7''') produit.
  6. Unité d'émission par satellite selon l'une des revendications précédentes,
    caractérisée en ce que
    le dispositif de production pilote (17), lors de la sélection du modèle de pilote pour le paquet de données pilotes (7 à 7'''), sélectionne un modèle de pilote qui indique la position du paquet de données d'en-tête (5, 5', 5") dans les paquets de données consécutifs.
  7. Unité de réception par satellite pour signaux numériques à large bande, sachant que l'unité de réception par satellite comprend :
    - un dispositif de réception (41) pour la mise à disposition d'un signal de données brutes (9),
    - un dispositif démultiplexeur (42),
    - un dispositif démodulateur (43),
    caractérisée en ce que
    le dispositif démultiplexeur (42) est configuré pour
    - identifier, dans la couche de transmission de bits, la position d'au moins un paquet de données d'en-tête (5, 5', 5"), à savoir d'un PLHEADER, dans le signal de données brutes (9) ;
    - décider, à l'aide d'informations contenues dans le PLHEADER sur l'appartenance à une partie déterminée du flux de données, si des paquets de données déterminés provenant du signal de données brutes (9) et/ou une section de signal du signal de données brutes seront soumis à un traitement ultérieur moyennant le dispositif démodulateur (43).
  8. Procédé de production et/ou d'envoi d'un flux de données de sortie,
    comprenant les étapes de :
    a) répartition d'un flux de données d'entrée (1), à savoir d'un XFECFRAME, en une pluralité de paquets de données utiles (4, 4', 4") ayant une longueur de paquet de données utiles définie ;
    b) production d'une pluralité de paquets de données pilotes (7 à 7''') ;
    c) production d'au moins un paquet de données d'en-tête (5, 5', 5") sous la forme d'un PLHEADER ayant une longueur de paquet de données d'en-tête, sachant que le paquet de données d'en-tête (5, 5', 5") comprend des informations relatives au procédé de modulation et de codage employé de la séquence de paquets de données utiles (4, 4', 4") ;
    d) liaison d'au moins les paquets de données utiles (4, 4', 4"), du paquet de données d'en-tête (5, 5', 5") et des paquets de données pilotes (7 à 7''') en un flux de données de sortie (3) de telle façon que les paquets de données pilotes (7 à 7''') comprennent par paire une pluralité de paquets de données utiles (4, 4', 4"),
    caractérisé en ce que
    des informations relatives à l'appartenance des paquets de données utiles (4, 4', 4") à un flux de données total déterminé et/ou à une partie déterminée du flux de données total par l'insertion d'un identifiant de flux d'entrée (ISI) ou d'une valeur dérivée de l'identifiant de flux d'entrée (ISI) sont contenues dans le paquet de données d'en-tête (5, 5', 5").
  9. Procédé selon la revendication 8,
    caractérisé en ce que
    l'étape d) s'effectue de telle façon qu'un nombre spécifié de paquets de données suive un paquet de données pilotes (7 à 7''') avant qu'un autre paquet de données pilotes (7 à 7''') soit inséré.
  10. Procédé selon l'une des revendications 8 ou 9,
    caractérisé en ce que
    l'étape b) comprend :
    - une sélection d'un modèle de pilote à partir d'un jeu spécifié de modèles de pilote, sachant que le jeu comprend une cardinalité de modèles de pilote qui est inférieure ou égale à 10,
    - une insertion du modèle de pilote sélectionné dans le paquet de données pilotes (7 à 7''') respectif, sachant que
    la sélection du modèle de pilote à partir du jeu spécifié de modèles de pilote considère si les paquets de données consécutifs jusqu'au paquet de données pilotes (7 à 7''') suivant comprennent un paquet de données d'en-tête (5, 5', 5") et/ou à quel endroit le paquet de données d'en-tête (5, 5', 5") est inséré par rapport au paquet de données pilotes (7 à 7''').
  11. Procédé selon l'une des revendications 8 à 10,
    caractérisé par
    l'étape e) de :
    brouillage de paquets de données individuels, sachant que les paquets de données d'en-tête (5, 5', 5") et/ou les paquets de données pilotes (7 à 7''') ne sont pas brouillés.
  12. Procédé de réception et de décodage d'un signal à large bande,
    caractérisé par
    les étapes de :
    a) réception d'un signal porteur (9) modulé avec une pluralité de flux de données de sortie (3) codés dans celui-ci ;
    b) sélection de respectivement une section (9a) du signal porteur (9) modulé qui contient un PLHEADER et se rapporte à un flux de données de sortie (3) ;
    c) démodulation de la section (9a) sélectionnée pour déterminer des informations qui se rapportent au flux de données de sortie (3) respectif ;
    d) rejet d'au moins une section de signal qui se rapporte à un premier flux de données de sortie (3) en fonction des informations déterminées ;
    e) décodage et/ou démodulation d'au moins un deuxième flux de données de sortie (3) qui n'a pas été rejeté.
EP12196727.7A 2011-12-12 2012-12-12 Unité d'émission par satellite, unité de réception par satellite, procédé de production et/ou d'envoi d'un courant de données de sortie et procédé de réception et de décodage d'un signal à large bande Active EP2605431B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011056300 2011-12-12
DE102012101802.2A DE102012101802B4 (de) 2011-12-12 2012-03-02 Satelliten-Sendeeinheit, Satelliten-Empfangseinheit, Verfahren zur Erzeugung und/oder zum Versand eines Ausgangsdatenstroms und Verfahren zum Empfangen und Dekodieren eines Breitbandsignals

Publications (3)

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EP2605431A2 EP2605431A2 (fr) 2013-06-19
EP2605431A3 EP2605431A3 (fr) 2013-07-31
EP2605431B1 true EP2605431B1 (fr) 2018-08-08

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EP (1) EP2605431B1 (fr)
DE (1) DE102012101802B4 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998020630A1 (fr) * 1996-11-05 1998-05-14 Worldspace, Inc. Systeme de radiodiffusion directe numerique par satellite
EP2362654A1 (fr) * 2010-02-26 2011-08-31 Panasonic Corporation En-têtes de trame de bande courte

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8259852B2 (en) 2006-07-19 2012-09-04 Broadcom Corporation Method and system for satellite communication
CN102165705B (zh) 2008-10-27 2014-08-06 诺沃尔赛特有限公司 基于高性能超奈奎斯特信令机制的方法、装置和系统
WO2010128420A2 (fr) 2009-05-04 2010-11-11 Novelsat Ltd Ordinateur frontal destiné à une communication par satellite

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998020630A1 (fr) * 1996-11-05 1998-05-14 Worldspace, Inc. Systeme de radiodiffusion directe numerique par satellite
EP2362654A1 (fr) * 2010-02-26 2011-08-31 Panasonic Corporation En-têtes de trame de bande courte

Also Published As

Publication number Publication date
EP2605431A2 (fr) 2013-06-19
EP2605431A3 (fr) 2013-07-31
DE102012101802B4 (de) 2017-03-02
DE102012101802A1 (de) 2013-06-13

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