WO2017130724A1 - データ処理装置、及び、データ処理方法 - Google Patents
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Definitions
- the present technology relates to a data processing device and a data processing method, and more particularly to a data processing device and a data processing method capable of reducing processing load on the receiving side.
- ATSC Advanced Television Systems Committee
- L1 signaling L1 signaling
- a receiving apparatus on the receiving side performs demodulation processing and the like using this L1 signaling.
- the processing in the receiving apparatus on the receiving side may be burdened, so a proposal for reducing the processing load on the receiving side has been requested.
- the present technology has been made in view of such a situation, and aims to reduce the processing load on the receiving side.
- the data processing apparatus includes: a generation unit generating signaling including the number of Null cells indicating the number of Null cells among cells of subframes included in a physical layer frame; And a processing unit for processing to be included in the preamble of the physical layer frame.
- the data processing device may be an independent device or an internal block that constitutes one device.
- a data processing method according to a first aspect of the present technology is a data processing method corresponding to the data processing device according to the first aspect of the present technology described above.
- signaling including the number of Null cells indicating the number of Null cells among the cells of subframes included in the physical layer frame is generated, Signaling is processed to be included in the preamble of the physical layer frame.
- the data processing apparatus is signaling included in a preamble of a physical layer frame, wherein the number of Null cells indicating the number of Null cells among the subframe cells included in the physical layer frame And a processor configured to process the signaling.
- the data processing device of the second aspect of the present technology may be an independent device or an internal block that constitutes one device.
- a data processing method according to a second aspect of the present technology is a data processing method corresponding to the data processing device according to the second aspect of the present technology described above.
- a null cell among subframe cells included in the physical layer frame The signaling including the number of Null cells indicating the number is processed.
- the processing load on the receiving side can be reduced.
- FIG. 1 is a diagram illustrating a configuration of an embodiment of a transmission system to which the present technology is applied. It is a figure showing an example of composition of a transmitting set of this art. It is a flowchart explaining the flow of the modulation process by the side of transmission of this art. It is a figure showing an example of composition of a receiver of this art. It is a flowchart explaining the flow of demodulation processing on the receiving side of the present technology.
- Fig. 18 is a diagram illustrating an example of a syntax of L1 detailed information (L1-Detail) of the present technology.
- Fig. 18 is a diagram illustrating an example of another syntax of L1 basic information (L1-Basic) of the present technology.
- Fig. 18 is a diagram illustrating an example of another syntax of L1 detailed information (L1-Detail) of the present technology.
- It is a figure showing composition of a parameter control part of this art. It is a flow chart explaining a flow of parameter control processing of this art. It is a figure which shows the example of tone reservation (Tone Reservation). It is a figure showing an example of composition of a computer.
- FIG. 1 is a diagram showing the structure of a physical layer frame.
- the horizontal direction represents time
- the vertical direction represents frequency.
- a physical layer frame defined in ATSC 3.0 is composed of a bootstrap, a preamble, and one or more subframes.
- the physical layer frame is configured with a predetermined frame length such as millisecond. In the physical layer frame, after obtaining the bootstrap and the preamble, it is possible to obtain subsequent subframes.
- the bootstrap corresponds to, for example, a P1 symbol constituting a T2 frame of DVB-T2 (Digital Video Broadcasting-Second Generation Terrestrial), and the preamble corresponds to, for example, a P2 symbol constituting a T2 frame of DVB-T2. There is. Thus, the bootstrap can also be said to be a preamble.
- DVB-T2 Digital Video Broadcasting-Second Generation Terrestrial
- the bootstrap can also be said to be a preamble.
- the preamble may include L1 signaling such as L1 basic information (L1-Basic) and L1 detailed information (L1-Detail).
- L1 basic information L1-Basic
- L1 detailed information L1-Detail
- L1 basic information is composed of about 200 bits
- L1 detailed information is composed of 400 to several thousand bits.
- the L1 basic information is read out earlier than the L1 detailed information.
- L1 basic information is also different in that it is transmitted more robustly than L1 detailed information.
- Payloads are arranged in subframes.
- modulation parameters such as FFT size, guard interval length, and pilot pattern can be changed for each subframe.
- FIG. 2 is a diagram showing an example of syntax of L1 basic information (L1-Basic) included in the preamble of FIG.
- the 2-bit L1B_content_tag represents a tag value that identifies content.
- the 3-bit L1B_version represents a version of L1 basic information.
- One bit L1B_slt_flag indicates whether or not SLT (Service Labeling Table) exists.
- One bit L1B_time_info_flag indicates whether time information exists.
- 2-bit L1B_papr represents application of PAPR (Peak to Average Power Reduction).
- L1B_frame_length_mode represents a frame mode.
- the 10-bit L1B_frame_length represents the frame length of the physical layer frame. However, this L1B_frame_length is used only when the frame mode is in the time-aligned mode, and is not used when in the symbol-aligned mode.
- L1B_num_subframes represents the number of subframes included in the physical layer frame.
- the 3-bit L1B_preamble_num_symbols represents the number of OFDM symbols included in the preamble.
- the 3-bit L1B_preamble_reduced_carriers represents the number of control units according to the reduction of the maximum number of carriers of FFT size used in the preamble.
- the 16-bit L1B_L1_Detail_size_bits represents the size of L1 detailed information (L1-Detail).
- the 3-bit L1B_L1_Detail_fec_type represents the FEC type of L1 detailed information.
- the 2-bit L1B_L1_Detail_additional_parity_mode represents an additional parity mode of L1 detailed information.
- the 19-bit L1B_L1_Detail_total_cells represents the total size of L1 detailed information.
- L1B_First_Sub_mimo represents the usage status of MIMO (Multiple Input and Multiple Output) of the first subframe.
- L1B_First_Sub_miso represents the usage status of Multiple Input and Single Output (MISO) of the first subframe.
- the 2-bit L1B_First_Sub_fft_size represents the FFT size of the first subframe.
- the 3-bit L1B_First_Sub_reduced_carriers represents the number of control units according to the decrease in the maximum number of FFT size carriers used in the first subframe.
- the 4-bit L1B_First_Sub_guard_interval represents the guard interval length of the first subframe.
- the 13-bit L1B_First_Sub_excess_samples represents the number of extra samples inserted in the guard interval portion in the (first) subframe. However, this L1B_First_Sub_excess_samples is used only when the frame mode is in the time-aligned mode, and is not used when in the symbol-aligned mode.
- the 11-bit L1B_First_Sub_num_ofdm_symbols represents the number of OFDM symbols included in the first subframe.
- the 5-bit L1B_First_Sub_scattered_pilot_pattern represents an SP pattern (Scattered Pilot Pattern) used in the first subframe.
- the 3-bit L1B_First_Sub_scattered_pilot_boost represents a value for increasing the size of the SP pattern.
- One-bit L1B_First_Sub_sbs_first and one-bit L1B_First_Sub_sbs_last represent SBS (Subframe Boundary Symbol) of the first subframe.
- L1B_Reserved is a region for future expansion (Reserved).
- the number of bits of L1B_Reserved is undetermined (TBD: To Be Determined), but is currently 49 bits.
- the 32-bit L1B_crc indicates that a CRC value is included.
- L1 basic information L1-Basic
- Table 9.2 L1-Basic signaling fields and syntax L1-Basic signaling fields and syntax
- FIGS. 3 to 5 are diagrams showing examples of syntax of L1 detailed information (L1-Detail) included in the preamble of FIG.
- the 4-bit L1D_version represents a version of L1 detailed information.
- the 19-bit L1D_rf_frequency represents the frequency of the RF channel coupled by channel bonding.
- L1B_time_info_flag 1 in the L1 basic information of FIG. 2, it indicates that time information is present, so L1D_time_info as time information is arranged in the L1 detailed information. Note that the number of bits of L1D_time_info is considered as undetermined (TBD).
- the 1-bit L1D_mimo represents subframe MIMO usage.
- One bit L1D_miso represents the usage status of subframes MISO.
- the 2-bit L1D_fft_size represents the FFT size of the subframe.
- the 3-bit L1D_reduced_carriers represent the number of control units according to the reduction of the maximum number of FFT size carriers used in a subframe.
- the 4-bit L1D_guard_interval represents the guard interval length of a subframe.
- the 11-bit L1D_num_ofdm_symbols represents the number of OFDM symbols included in a subframe.
- the 5-bit L1D_scattered_pilot_pattern represents an SP pattern used in a subframe.
- 3-bit L1D_scattered_pilot_boost represents a value for increasing the size of the SP pattern.
- One bit L1D_sbs_first and one bit L1D_sbs_last represent the SBS of the subframe.
- One-bit L1D_subframe_multiplex indicates whether a subframe is time division multiplexed.
- the 1-bit L1D_frequency_interleaver represents whether or not there is frequency interleaving.
- L1D_num_plp parameters relating to PLP are arranged.
- each subframe contains a null cell in addition to the active data cell (cell of valid data). That is, as shown in FIG. 6, when the total number of cells in a subframe is the total number of data cells (Total Data Cells), the number of null cells (Null Cells) is the total number of data cells and the number of active data cells It is calculated
- the horizontal axis represents the frequency, and viewed from the total data cell, null cells are allocated to each half of the active data cell on both sides thereof.
- the subframe includes a SBS (Subframe Boundary Symbol).
- SBS is a symbol of the border of a sub-frame, and the first and last symbols of the sub-frame can be according to a predetermined rule.
- a table for calculating the total number of data cells is stored in advance in the ROM (ROM 312A (FIG. 12) described later) of the receiving device (receiving device).
- the total number of data cells is calculated by using the table and various control parameters of L1 signaling. Note that various control parameters of L1 signaling are obtained from the preamble of the physical layer frame.
- a table used when calculating the total number of data cells there are, for example, the tables shown in FIG. 7 to FIG. 8. These tables are used as ROMs of the receiving apparatus (ROM 312A (FIG. 12 described later)). Will be stored in advance. Further, as various control parameters of L1 signaling used when calculating the total number of data cells, there are, for example, FFT Size, Scattered Pilot Pattern (SPP), and Cred_coeff.
- the FFT Size corresponds to L1B_First_Sub_fft_size (FIG. 2) or L1D_fft_size (FIG. 3).
- SPP corresponds to L1B_First_Sub_scattered_pilot_pattern (FIG. 2) or L1D_scattered_pilot_pattern (FIG. 3).
- Cred_coeff corresponds to L1B_First_Sub_reduced_carriers (FIG. 2) or L1D_reduced_carriers (FIG. 3).
- a table for calculating the number of active data cells is stored in advance in the ROM (ROM 313A (FIG. 12) described later) of the receiving apparatus.
- the number of active data cells is calculated by using various control parameters of signaling.
- a table used when calculating the number of active data cells for example, there are the tables shown in FIG. 9 to FIG. 11, and these tables are stored in the ROM (ROM 313A (FIG. 12) described later) of the receiving device. Will be stored in advance.
- various control parameters of L1 signaling used when calculating the number of active data cells there are, for example, FFT Size, SPP, Cred_coeff, SPBoost, and PAPR.
- the FFT Size corresponds to L1B_First_Sub_fft_size (FIG. 2) or L1D_fft_size (FIG. 3)
- the SPP corresponds to L1B_First_Sub_scattered_pilot_pattern (FIG. 2) or L1D_scattered_pilot_pattern (FIG. 3)
- Cred_coeff Or correspond to L1D_reduced_carriers (FIG. 3).
- SPBoost corresponds to L1B_First_Sub_scattered_pilot_boost (FIG. 2) or L1D_scattered_pilot_boost (FIG. 3).
- PAPR corresponds to L1B_papr (FIG. 2).
- FIG. 12 is a diagram showing the configuration of the current parameter control unit 301 on the receiving side.
- the parameter control unit 301 on the current reception side includes a signaling decoding unit 311, a total data cell number calculation unit 312, an active data cell number calculation unit 313, and a null cell number calculation unit 314.
- the signaling decoding unit 311 decodes various control parameters of L1 signaling by decoding the error-corrected data (reception L1 sequence) input thereto according to a predetermined decoding scheme.
- the signaling decoding unit 311 supplies the FFT Size, SPP, and Cred_coeff among the various control parameters decoded to the total data cell number calculation unit 312, and the FFT Size, SPP, Cred_coeff, SPBoost, and PAPR as the number of active data cells. It is supplied to the calculation unit 313.
- the total data cell number calculation unit 312 reads out a total data cell number calculation table from the ROM 312A provided internally, and calculates the total data cell number according to FFT Size, SPP, Cred_coeff using the table.
- the total number of data cells is supplied to the null cell number calculation unit 314. Further, the total number of data cells is supplied to, for example, each part of the receiving apparatus that uses the total number of data cells as a control parameter, such as an OFDM receiving unit.
- the active data cell number calculation unit 313 reads a table for calculating the number of active data cells from the ROM 313A provided internally, and uses the table to calculate the number of active data cells according to FFT Size, SPP, Cred_coeff, SPBoost, and PAPR. Do.
- the number of active data cells is supplied to the number of null cells calculation unit 314.
- the total number of data cells from the total data cell number calculation portion 312 and the number of active data cells from the active data cell number calculation portion 313 are supplied to the null cell number calculation portion 314.
- the null cell number calculation unit 314 calculates the number of null cells by subtracting the number of active data cells from the total number of data cells by applying the above-mentioned equation (1).
- the number of null cells is supplied to, for example, each part of the receiving apparatus that uses the number of null cells as a control parameter, such as a frequency deinterleaver.
- step S301 the signaling decoding unit 311 receives data after error correction (reception L1 sequence). Further, in step S302, the signaling decoding unit 311 performs various control of L1 signaling by decoding the error-corrected data (reception L1 sequence) input in the process of step S301 according to a predetermined decoding method. Decrypt the parameters (FFT Size, SPP, Cred_coeff, SPBoost, PAPR).
- step S303 the total data cell number calculation unit 312 uses the calculation table (for example, the tables of FIGS. 7 to 8) for calculating the total number of data cells stored in the ROM 312A, and the FFT Size decoded in step S302. , SPP, Cred_coeff and calculate the total number of data cells.
- step S304 the active data cell number calculation unit 313 uses the table for calculation of the number of active data cells stored in the ROM 313A (for example, the tables of FIGS. 9 to 11) and decodes the FFT size decoded in step S302. , SPP, Cred_coeff, SPBoost, PAPR, and the number of active data cells is calculated.
- step S305 the null cell number calculation unit 314 applies the above equation (1) to the total number of data cells calculated in the process of step S303 and the number of active data cells calculated in the process of step S304.
- the number of null cells is calculated by subtracting the number of active data cells from the total number of data cells.
- step S306 the null cell number calculation unit 314 supplies the number of null cells calculated in the process of step S305 to the frequency deinterleave unit.
- the current parameter control process of FIG. 13 ends.
- tables stored in advance in the ROM for example, the tables of FIGS. 7 to 8 and the tables of FIGS. 9 to 11
- various control parameters of decoded L1 signaling The total number of data cells and the number of active data cells are calculated using (for example, FFT Size, SPP, Cred_coeff, SPBoost, PAPR), and the above equation (1) is applied to the calculated number of cells. , To determine the number of null cells.
- FIG. 14 is a diagram showing the configuration of an embodiment of a transmission system to which the present technology is applied.
- a system is a system in which a plurality of devices are logically gathered.
- the transmission system 1 includes a transmitter 10 and a receiver 20.
- this transmission system 1 data transmission conforming to the digital broadcast standard such as ATSC 3.0 is performed.
- IP including IP / UDP packets, that is, UDP (User Datagram Protocol) packets, not TS (Transport Stream) packets, is mainly used for data transmission. It is assumed that a scheme using an Internet Protocol packet is adopted. Moreover, it is expected that the system using IP packet will be adopted in the future also by broadcasting systems other than ATSC 3.0.
- the transmission device 10 transmits the content via the transmission path 40.
- the transmitting apparatus 10 transmits, as a digital broadcast signal, a broadcast stream including video and audio (components thereof) and the like that constitute content such as a broadcast program and the like via the transmission path 40.
- the receiving device 20 receives and outputs the content transmitted from the transmitting device 10 via the transmission path 40.
- the receiving device 20 receives a digital broadcast signal from the transmitting device 10, acquires from the broadcast stream video and audio (components of the content) and signaling that constitute the content, and Play audio.
- the receiving apparatus 20 can be provided with two or more, and the transmitting apparatus 10 transmits. Digital broadcast signals to be distributed can be simultaneously received by the plurality of receiving devices 20 via the transmission path 40.
- a plurality of transmission devices 10 can also be provided.
- Each of the plurality of transmitters 10 transmits a digital broadcast signal including a broadcast stream as a separate channel, for example, in a separate frequency band, and in the receiver 20, among the respective channels of the plurality of transmitters 10. From which it is possible to select the channel on which the broadcast stream is to be received.
- the transmission path 40 is satellite broadcasting using, for example, a broadcasting satellite (BS: Broadcasting Satellite) or a communication satellite (CS: Communications Satellite) in addition to the terrestrial wave (terrestrial broadcasting).
- BS Broadcasting Satellite
- CS Communications Satellite
- CATV cable broadcasting
- FIG. 15 is a diagram showing a configuration example of the transmission device 10 of FIG.
- the transmitting apparatus 10 includes an encoder unit 111, a parameter control unit 112, an error correction coding unit 113, a time interleaving unit 114, a frequency interleaving unit 115, an OFDM transmission unit 116, an orthogonal modulation unit 117, and an RF / analog unit. It consists of 118.
- the encoder unit 111 encodes data (of a subframe) input from a circuit (not shown) of the previous stage and supplies the encoded data to the error correction coding unit 113.
- the parameter control unit 112 generates L1 signaling (preamble) data including various control parameters, and supplies the data to the error correction coding unit 113.
- L1 signaling L1 basic information (L1-Basic), L1 detailed information (L1-Detail), etc. are generated. Further, the number of null cells (L1B_First_Sub_sbs_null_cells (FIG. 19) and L1D_sbs_null_cells (FIG. 20) described later) are included in the L1 signaling as control parameters.
- the error correction coding unit 113 performs error coding processing (for example, BCH coding, Low Density Parity Check (LDPC) coding, and the like) on the data supplied from the encoder unit 111 and the parameter control unit 112.
- error correction coding unit 113 supplies the data after error correction coding to the time interleaving unit 114.
- the time interleaving unit 114 interleaves the data supplied from the error correction coding unit 113 in the time direction, and supplies the data after interleaving in the time direction to the frequency interleaving unit 115.
- the frequency interleaving unit 115 interleaves the data supplied from the time interleaving unit 114 in the frequency direction, and supplies the data after interleaving in the frequency direction to the OFDM transmission unit 116.
- the OFDM transmission unit 116 performs inverse fast Fourier transform (IFFT) operation on the data supplied from the frequency interleaving unit 115, and supplies an orthogonal frequency division multiplexing (OFDM) signal obtained thereby to the orthogonal modulation unit 117.
- IFFT inverse fast Fourier transform
- OFDM orthogonal frequency division multiplexing
- the OFDM signal includes bootstrap signaling.
- the orthogonal modulation unit 117 orthogonally modulates the baseband OFDM signal supplied from the OFDM transmission unit 116, and supplies a signal obtained thereby to the RF / analog unit 118.
- the signal processed by the orthogonal modulation unit 117 is subjected to D / A (Digital / Analog) conversion processing, converted from a digital signal to an analog signal, and then input to the RF / analog unit 118.
- D / A Digital / Analog
- the RF / analog unit 118 is connected to the antenna 101, and transmits the signal supplied from the orthogonal modulation unit 117 to the receiving apparatus 20 via the transmission path 40 as an RF (Radio Frequency) signal.
- RF Radio Frequency
- step S101 the OFDM transmitter 116 modulates a subframe (subframe symbol).
- time interleaving unit 114 and the frequency interleaving unit are performed after the error correction encoding unit 113 performs the error correction encoding process on the data encoded by the encoder unit 111.
- data obtained by performing interleaving in the time direction and in the frequency direction is modulated by the OFDM transmission unit 116 as a subframe.
- the parameter control unit 112 generates data of L1 signaling (preamble) including various control parameters. For example, as L1 signaling, L1 basic information (L1-Basic), L1 detailed information (L1-Detail), etc. are generated. Further, the number of null cells (L1B_First_Sub_sbs_null_cells (FIG. 19) and L1D_sbs_null_cells (FIG. 20) described later) are included in the L1 signaling as control parameters.
- L1 signaling L1 basic information (L1-Basic), L1 detailed information (L1-Detail), etc. are generated. Further, the number of null cells (L1B_First_Sub_sbs_null_cells (FIG. 19) and L1D_sbs_null_cells (FIG. 20) described later) are included in the L1 signaling as control parameters.
- error correction coding processing is performed by the error correction coding unit 113 on the data of L1 signaling generated in the process of step S102, and then time interleaving is performed.
- the interleaving in the time direction and in the frequency direction is performed by the unit 114 and the frequency interleaving unit 115.
- step S103 the OFDM transmitter 116 modulates the preamble symbol of L1 signaling generated in the process of step S102.
- step S104 the OFDM transmission unit 116 generates bootstrap signaling including control parameters.
- step S105 the OFDM transmitter 116 modulates the signaling of the bootstrap generated in the process of step S104.
- step S106 it is determined whether to end the process. If it is determined in step S106 that the process is not ended, the process is returned to step S101. Then, the processing of steps S101 to S105 described above is repeated with the next physical layer frame as the processing target.
- step S106 when it is determined in step S106 that the processing is to be ended, the modulation processing on the transmission side of the present technology in FIG. 16 is ended.
- the number of null cells is generated as various control parameters, and is included in L1 signaling (preamble) and transmitted.
- FIG. 17 is a diagram showing a configuration example of the receiving device 20 of FIG.
- the receiving apparatus 20 includes an RF / analog unit 211, an orthogonal demodulation unit 212, an OFDM reception unit 213, a frequency deinterleaving unit 214, a time deinterleaving unit 215, an error correction decoding unit 216, a parameter control unit 217, and The decoder unit 218 is configured.
- the RF / analog unit 211 is connected to the antenna 201, and receives an RF signal transmitted from the transmission device 10 via the transmission path 40.
- the RF / analog unit 211 processes the RF signal and supplies it to the orthogonal demodulation unit 212.
- a / D (Analog / Digital) conversion processing is performed on the signal processed by the RF / analog unit 211, and the analog signal is converted into a digital signal, and then input to the orthogonal demodulation unit 212.
- the orthogonal demodulation unit 212 orthogonally demodulates the signal supplied from the RF / analog unit 211, and supplies the OFDM signal of the baseband obtained as a result to the OFDM reception unit 213.
- the OFDM reception unit 213 performs FFT (Fast Fourier Transform) operation on the OFDM signal supplied from the orthogonal demodulation unit 212 to extract data orthogonally modulated on each subcarrier, and the frequency deinterleave unit 214 Supply.
- FFT Fast Fourier Transform
- the frequency deinterleave unit 214 deinterleaves the data supplied from the OFDM reception unit 213 in the frequency direction, and supplies the data after deinterleaving in the frequency direction to the time deinterleave unit 215.
- the time de-interleaving unit 215 de-interleaves the data supplied from the frequency de-interleaving unit 214 in the time direction, and supplies the data after de-interleaving in the time direction to the error correction decoding unit 216.
- the error correction decoding unit 216 performs an error correction process (for example, LDPC decoding, BCH decoding, etc.) on the data supplied from the time de-interleaving unit 215.
- the error correction decoding unit 216 supplies the data of the preamble among the data after the error correction to the parameter control unit 217 and supplies the data of the subframe to the decoder unit 218.
- the parameter control unit 217 processes the data supplied from the error correction decoding unit 216, and supplies various control parameters included in L1 signaling to each unit of the reception apparatus 20. The detailed configuration of the parameter control unit 217 will be described later with reference to FIG.
- the parameter control unit 217 supplies the number of null cells (L1B_First_Sub_sbs_null_cells (FIG. 19) or L1D_sbs_null_cells (FIG. 20) described later) included in L1 signaling to the frequency deinterleave unit 214.
- the frequency de-interleaving unit 214 de-interleaving in the frequency direction is performed on the active data of the part excluding null cells according to the number of null cells from the parameter control unit 217.
- the decoder unit 218 decodes the data (of the subframe) supplied from the error correction decoding unit 216, and outputs the data to a circuit (not shown) in the subsequent stage.
- the OFDM reception unit 213 detects a bootstrap of the physical layer frame.
- the OFDM receiving unit 213 performs correlation calculation of the time domain with respect to the baseband OFDM signal, and detects a place where autocorrelation is maximum as a bootstrap trigger position ( Detect).
- step S202 the OFDM reception unit 213 performs equalization processing on the bootstrap detected in the process of step S201, and demodulates the bootstrap.
- step S203 the OFDM receiving unit 213 decodes (decodes) the signaling of the bootstrap that has been demodulated in the process of step S202, and performs parameter control using control parameters obtained thereby.
- step S204 the OFDM receiving unit 213 performs equalization processing on preamble symbols in accordance with parameter control of the processing in step S203, and demodulates the preamble symbols.
- de-interleaving in the frequency direction and in the time direction is performed by the frequency de-interleaving unit 214 and the time de-interleaving unit 215 for the preamble symbol demodulated in the process of step S204.
- the error correction decoding unit 216 performs an error correction decoding process.
- step S205 the parameter control unit 217 decodes (decodes) L1 signaling included in the preamble obtained in the process of step S204 and the like, and performs parameter control using various control parameters obtained thereby.
- the parameter control unit 217 supplies the number of null cells (L1B_First_Sub_sbs_null_cells (FIG. 19) or L1D_sbs_null_cells (FIG. 20) described later) included in L1 signaling to the frequency deinterleave unit 214.
- the frequency de-interleaving unit 214 de-interleaving in the frequency direction is performed on the active data of the part excluding null cells according to the number of null cells from the parameter control unit 217.
- step S206 the OFDM receiving unit 213 performs sub-frame (sub-frame symbol) equalization processing according to parameter control of the processing of step S205, and demodulates the sub-frame.
- the frequency deinterleave unit 214 and the time deinterleave unit 215 perform deinterleave in the frequency direction and the time direction for the subframes demodulated in the process of step S206.
- the error correction decoding unit 216 performs an error correction decoding process.
- the decoder unit 218 data (of the subframe) obtained by the process of step S206 or the like is decoded and output.
- step S207 it is determined whether to end the process. If it is determined in step S207 that the process is not ended, the process returns to step S202. Then, the processing in steps S202 to S206 described above is repeated for the next physical layer frame as a processing target.
- step S207 when it is determined in step S207 that the process is to be ended, the demodulation process on the receiving side of the present technology in FIG. 18 is ended.
- the number of null cells can be acquired together with FFT Size, SPP, Cred_coeff, etc. as various control parameters to be transmitted included in L1 signaling (preamble), so the number of null cells It is not necessary to provide an arithmetic circuit or a memory for calculating, and the load on the receiving apparatus can be reduced.
- FIG. 19 is a diagram illustrating an example of a syntax of L1 basic information (L1-Basic) of the present technology.
- L1B_First_Sub_sbs_null_cells represents the number of null cells in the first subframe.
- bit number of L1B_First_Sub_sbs_null_cells is 11 bits, another bit number may be set according to the operation.
- FIG. 20 is a diagram illustrating an example of a syntax of L1 detailed information (L1-Detail) of the present technology.
- L1D_sbs_null_cells represents the number of null cells in the remaining subframes other than the first subframe.
- bit number of L1D_sbs_null_cells is 11 bits, another bit number may be set according to the operation.
- null cells are allocated to each half of the active data cell on both sides thereof.
- half (one-half) of the number of null cells may be described in L1 signaling. Therefore, next, a case where half of the number of null cells (1/2) is described in L1 basic information and L1 detailed information will be described with reference to FIG. 21 and FIG.
- FIG. 21 is a diagram illustrating an example of another syntax of L1 basic information (L1-Basic) of the present technology.
- L1B_First_Sub_sbs_active_carrier_start field is added as compared to the L1 basic information of FIG. Bold.
- This L1B_First_Sub_sbs_active_carrier_start represents half of the number of null cells in the first subframe (the number of 1/2).
- the number of bits of L1B_First_Sub_sbs_active_carrier_start is 10 bits, and describing half of the number of Null cells makes 1 bit compared to 11 bits of L1B_First_Sub_sbs_null_cells (FIG. 19) describing the whole number of Null cells.
- the number of bits can be reduced.
- the number of bits of L1B_First_Sub_sbs_active_carrier_start is 10 bits, another number of bits may be set according to the operation.
- FIG. 22 is a diagram illustrating an example of another syntax of L1 detailed information (L1-Detail) of the present technology.
- L1D_sbs_active_carrier_start represents half (the number of 1/2) of the number of null cells in the remaining subframes other than the first subframe.
- the number of bits of L1D_sbs_active_carrier_start is 10 bits, and by describing half of the number of null cells, it is possible to reduce the number of bits of 1 bit as compared to L1D_sbs_null_cells (FIG. 20). Although the number of bits of L1D_sbs_active_carrier_start is 10 bits, another number of bits may be set according to the operation.
- L1 signaling Although the case where the number of null cells or half of the number of null cells (1/2) is described in L1 signaling has been described with reference to FIGS. 19 to 22, it is assumed that the number described in L1 signaling is null. Not limited to the number of cells, for example, the number of active data cells may be described.
- the parameter control unit 217 holds a table for calculating the total number of data cells in order to output (provide) the total number of data cells to each unit (for example, the OFDM receiving unit 213 etc.) of the receiver 20 (FIG. 17). Although it is assumed that the calculation is performed, it is possible to calculate the total number of data cells according to FFT Size, SPP, and Cred_coeff by using the table for calculating the total number of data cells.
- L1 signaling can be calculated from the total number of data cells calculated using the total data cell number calculation table.
- the number of null cells can be determined by subtracting the number of active data cells to be decoded from. Even in this case, the parameter control unit 217 does not need to calculate the number of active data cells, and does not need to hold a table for calculating the number of active data cells, thus reducing the load on the receiving apparatus. There is no difference in what can be done.
- L1 basic information (L1-Basic) in FIG. 19 and L1 detailed information (L1-Detail) in FIG. 20 are transmitted as L1 signaling will be described.
- FIG. 23 is a diagram showing the configuration of the parameter control unit 217 of FIG.
- the parameter control unit 217 includes a signaling decoding unit 221 and a total data cell number calculation unit 222.
- the signaling decoding unit 221 decodes the error-corrected data (received L1 sequence) supplied from the error correction decoding unit 216 (FIG. 17) according to a predetermined decoding method, thereby performing various control of L1 signaling. Decode parameters.
- the signaling decoding unit 221 outputs the number of null cells (for example, L1B_First_Sub_sbs_null_cells in FIG. 19 or L1D_sbs_null_cells in FIG. 20) among various decoded control parameters to the frequency deinterleaving unit 214 (FIG. 17).
- the output destination of the number of null cells as a control parameter is supplied not only to the frequency de-interleaving unit 214 but also to each unit of the receiving apparatus 20 (FIG. 17) that uses the number of null cells.
- the signaling decoding unit 221 supplies FFT Size, SPP, and Cred_coeff among the various control parameters decoded to the total data cell number calculation unit 222.
- the total data cell number calculation unit 222 reads a total data cell number calculation table from the ROM 222A provided internally, and calculates the total data cell number according to FFT Size, SPP, Cred_coeff using the table.
- the total number of data cells is supplied to, for example, each part of the reception apparatus 20 (FIG. 17) that uses the total number of data cells as a control parameter, such as the OFDM receiver 213 (FIG. 17).
- various control parameters decoded by the signaling decoding unit 221 are supplied to each unit of the receiving apparatus 20 (FIG. 17) using the various control parameters. Become.
- step S221 the signaling decoding unit 221 receives data (reception L1 sequence) after error correction from the error correction decoding unit 216 (FIG. 17).
- step S222 the signaling decoding unit 221 decodes the error-corrected data (received L1 sequence) input in the process of step S221 according to a predetermined decoding method to control various control parameters of L1 signaling ( Decrypt the number of null cells.
- this number of null cells for example, L1B_First_Sub_sbs_null_cells of FIG. 19 or L1D_sbs_null_cells of FIG.
- step S223 the signaling decoding unit 221 outputs the number of null cells decoded in the process of step S222 to the frequency de-interleaving unit 214 (FIG. 17). Then, when the process of step S223 ends, the parameter control process of the present technology in FIG. 24 ends.
- the process related to the number of null cells has been mainly described, but other control parameters are also decoded and processed.
- the FFT size, SPP, and Cred_coeff are decoded by the signaling decoding unit 221, and the total data cell number calculation unit 222 calculates the total data cell number table for the ROM 222A (for example, the tables in FIGS. 7 to 8).
- the total number of data cells according to FFT Size, SPP, and Cred_coeff is calculated using and the like, and is output.
- the present technology by including the number of null cells in L1 signaling and transmitting it, it is not necessary to provide an arithmetic circuit or memory for calculating the number of null cells, and a receiving device resulting from the number of null cells Can reduce the burden of
- tone reservation is to insert a special signal into a carrier in order to lower the PAPR value, and is adopted, for example, in DVB-T2.
- FIG. 25 shows an example of a carrier index of tone reservation. For example, when tone reservation is taken into consideration, it is also assumed that the number of tables which is twice as large as the number of present tables is required.
- the ATSC in particular, ATSC 3.0
- ATSC 3.0 which is a system adopted in the United States and the like
- DVB Digital Video Broadcasting
- the ATSC 3.0 in which the IP transmission method is adopted has been described as an example, but the present invention is not limited to the IP transmission method, and is applied to other methods such as the MPEG2-TS (Transport Stream) method. You may do so.
- digital broadcasting can be applied to satellite broadcasting using broadcasting satellites (BS) and communication satellites (CS), etc., and cable broadcasting such as cable television (CATV).
- BS broadcasting satellites
- CS communication satellites
- CATV cable television
- names such as (the field of) the signaling described above are an example, and other names may be used.
- L1B_First_Sub_sbs_null_cells in FIG. 19 and L1D_sbs_null_cells in FIG. 20 another name that means “the number of null cells” may be used.
- the difference between these names is a formal difference, and the substantive content of (the field of) the subject is not different.
- the present technology is a predetermined standard that is defined on the assumption that a transmission line other than a broadcast network, ie, a communication line (communication network) such as the Internet or a telephone network, is used as a transmission line.
- a communication line such as the Internet or a telephone network may be used as the transmission line 40 of the transmission system 1 (FIG. 14), and the transmission device 10 may be a server provided on the Internet.
- the transmitting device 10 server
- the transmitting device 10 processes the data transmitted from the transmitting device 10 (server) through the transmission path 40 (communication line).
- FIG. 26 is a diagram showing an example of a hardware configuration of a computer that executes the series of processes described above according to a program.
- a central processing unit (CPU) 1001, a read only memory (ROM) 1002, and a random access memory (RAM) 1003 are mutually connected by a bus 1004.
- An input / output interface 1005 is further connected to the bus 1004.
- An input unit 1006, an output unit 1007, a recording unit 1008, a communication unit 1009, and a drive 1010 are connected to the input / output interface 1005.
- the input unit 1006 includes a keyboard, a mouse, a microphone and the like.
- the output unit 1007 includes a display, a speaker, and the like.
- the recording unit 1008 includes a hard disk, a non-volatile memory, and the like.
- the communication unit 1009 includes a network interface or the like.
- the drive 1010 drives removable media 1011 such as a magnetic disk, an optical disk, a magneto-optical disk, or a semiconductor memory.
- the CPU 1001 loads the program stored in the ROM 1002 or the recording unit 1008 into the RAM 1003 via the input / output interface 1005 and the bus 1004, and executes the program. A series of processing is performed.
- the program executed by the computer 1000 can be provided by being recorded on, for example, a removable medium 1011 as a package medium or the like. Also, the program can be provided via a wired or wireless transmission medium such as a local area network, the Internet, or digital satellite broadcasting.
- the program can be installed in the recording unit 1008 via the input / output interface 1005 by mounting the removable media 1011 in the drive 1010. Also, the program can be received by the communication unit 1009 via a wired or wireless transmission medium and installed in the recording unit 1008. In addition, the program can be installed in advance in the ROM 1002 or the recording unit 1008.
- the processing performed by the computer according to the program does not necessarily have to be performed chronologically in the order described as the flowchart. That is, the processing performed by the computer according to the program includes processing executed in parallel or separately (for example, parallel processing or processing by an object). Further, the program may be processed by one computer (processor) or may be distributed and processed by a plurality of computers.
- the present technology can have the following configurations.
- a generator configured to generate signaling including the number of Null cells indicating the number of Null cells among cells of subframes included in the physical layer frame;
- a processing unit configured to process the signaling to be included in a preamble of the physical layer frame.
- the number of null cells is the number of cells obtained by subtracting the number of active data cells indicating the number of effective data cells of the subframe from the total number of data cells indicating the number of all cells of the subframe.
- the data processing device according to (1).
- the signaling includes first control information and second control information read after the first control information, The data processing apparatus according to (1) or (2), wherein the number of null cells is included in the first control information or the second control information.
- the physical layer frame includes one or more subframes, The number of null cells in the first subframe is included in the first control information, The data processing device according to (3), wherein the number of null cells in the remaining subframes other than the first subframe is included in the second control information.
- the generation unit generates signaling including the number of active data cells or a half of the number of null cells instead of the number of null cells.
- the physical layer frame is a physical layer frame defined in Advanced Television Systems Committee (ATSC) 3.0
- the first control information is L1 basic information (L1-Basic) defined in ATSC 3.0
- the second control information is L1 detailed information (L1-Detail) defined in ATSC 3.0
- the data processing apparatus according to any one of (3) to (5), wherein the subframe includes a SBS (Subframe Boundary Symbol) that is a symbol of a boundary of the subframe.
- the data processor Generate signaling including the number of Null cells indicating the number of Null cells among cells of subframes included in the physical layer frame, Processing the signaling to be included in a preamble of the physical layer frame.
- Data processing apparatus comprising: a signaling unit included in a preamble of a physical layer frame that processes the signaling including the number of Null cells indicating the number of Null cells among cells of subframes included in the physical layer frame .
- the processing unit decodes data of a physical layer sequence included in a received signal transmitted via a transmission path, and decodes the number of Null cells included in the signaling.
- Processing unit (11) The data processing apparatus according to (10), further comprising: a frequency deinterleaving unit configured to perform deinterleaving in a frequency direction on valid data according to the number of Null cells decoded by the processing unit.
- the number of null cells is the number of cells obtained by subtracting the number of active data cells indicating the number of effective data cells of the subframe from the total number of data cells indicating the number of all cells of the subframe.
- the data processing device according to (9).
- the signaling includes first control information and second control information read after the first control information, The data processing apparatus according to (9) or (12), wherein the number of null cells is included in the first control information or the second control information.
- the physical layer frame includes one or more subframes, The number of null cells in the first subframe is included in the first control information, The data processing apparatus according to (13), wherein the number of null cells in the remaining subframes other than the first subframe is included in the second control information.
- the data processing device according to (13) or (14), wherein the first control information has a smaller data size and is transmitted more robustly than the second control information.
- the signaling includes the number of active data cells or a half of the number of null cells instead of the number of null cells.
- the data processing apparatus according to (12), wherein the processing unit processes the signaling including the number of active data cells or a half of the number of null cells.
- the physical layer frame is a physical layer frame defined in ATSC 3.0
- the first control information is L1 basic information (L1-Basic) defined in ATSC 3.0
- the second control information is L1 detailed information (L1-Detail) defined in ATSC 3.0
- the data processing apparatus according to any one of (13) to (15), wherein the subframe includes a SBS (Subframe Boundary Symbol) which is a symbol of a boundary of the subframe.
- the data processor A signaling method comprising: signaling included in a preamble of a physical layer frame, the signaling including a number of Null cells indicating a number of Null cells among cells of subframes included in the physical layer frame.
- Reference Signs List 1 transmission system 10 transmitters, 20 receivers, 40 transmission paths, 111 encoders, 112 parameter control units, 113 error correction coding units, 114 time interleaving units, 115 frequency interleaving units, 116 OFDM transmitters, 117 quadrature modulation , 118 RF, analog unit, 211 RF, analog unit, 212 orthogonal demodulator, 213 OFDM receiver, 214 frequency deinterleaver, 215 time deinterleaver, 216 error correction decoder, 217 parameter control unit, 218 decoder Part, 221 signaling decode part, 222 total data cell number calculation part, 222A ROM (total data cell ROM), 1000 computer, 1001 CPU
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Abstract
Description
2.本技術の実施の形態
(1)システムの構成
(2)シグナリングの例
(3)パラメータ制御の詳細
3.変形例
4.コンピュータの構成
図1は、物理層フレームの構造を示す図である。図1において、横方向は、時間(Time)を表し、縦方向は、周波数(Frequency)を表している。
図2は、図1のプリアンブルに含まれるL1基本情報(L1-Basic)のシンタックスの例を示す図である。
図3乃至図5は、図1のプリアンブルに含まれるL1詳細情報(L1-Detail)のシンタックスの例を示す図である。
ところで、ATSC3.0で規定される物理層フレームにおいて、各サブフレームには、アクティブデータセル(有効なデータのセル)のほかに、Nullセルが含まれている。すなわち、図6に示すように、サブフレーム内の全セル数を、トータルデータセル数(Total Data Cells)とした場合、Nullセル数(Null Cells)は、トータルデータセル数とアクティブデータセル数(Active Data Cells)を用いて、下記の式(1)を計算することで求められる。
次に、現状の規格に対応した受信装置の構成について説明するが、ここでは、説明を簡略化するために、当該受信装置を構成する直交復調部やOFDM受信部、デインターリーブ部などの説明は省略し、L1シグナリングを処理するパラメータ制御部301(図12)の構成を中心に説明する。
次に、図13のフローチャートを参照して、図12のパラメータ制御部301により実行される現状のパラメータ制御処理の流れを説明する。
図14は、本技術を適用した伝送システムの一実施の形態の構成を示す図である。なお、システムとは、複数の装置が論理的に集合したものをいう。
図15は、図14の送信装置10の構成例を示す図である。
次に、図16のフローチャートを参照して、図14の送信装置10により実行される、本技術の送信側の変調処理の流れを説明する。なお、図16の説明では、パラメータ制御部112とOFDM送信部116により実行される処理を中心に説明する。
図17は、図14の受信装置20の構成例を示す図である。
次に、図18のフローチャートを参照して、図14の受信装置20により実行される、本技術の受信側の復調処理の流れを説明する。ただし、図18の説明では、OFDM受信部213とパラメータ制御部217により実行される処理を中心に説明する。
図19は、本技術のL1基本情報(L1-Basic)のシンタックスの例を示す図である。
図20は、本技術のL1詳細情報(L1-Detail)のシンタックスの例を示す図である。
図21は、本技術のL1基本情報(L1-Basic)の他のシンタックスの例を示す図である。
図22は、本技術のL1詳細情報(L1-Detail)の他のシンタックスの例を示す図である。
図23は、図17のパラメータ制御部217の構成を示す図である。
次に、図24のフローチャートを参照して、図17のパラメータ制御部217により実行される、パラメータ制御処理の流れを説明する。ただし、図24の説明では、L1シグナリングの各種制御パラメータのうち、Nullセル数に関する処理を中心に説明する。
物理層フレームに含まれるサブフレームのセルのうち、Nullセルの数を示すNullセル数を含むシグナリングを生成する生成部と、
前記シグナリングを、前記物理層フレームのプリアンブルに含まれるように処理する処理部と
を備えるデータ処理装置。
(2)
前記Nullセル数は、前記サブフレームの全てのセルの数を示すトータルデータセル数から、前記サブフレームの有効なデータのセルの数を示すアクティブデータセル数を減算することで得られるセル数である
(1)に記載のデータ処理装置。
(3)
前記シグナリングは、第1の制御情報と、前記第1の制御情報の後に読み出される第2の制御情報を含み、
前記Nullセル数は、前記第1の制御情報又は前記第2の制御情報に含まれる
(1)又は(2)に記載のデータ処理装置。
(4)
前記物理層フレームには、1以上のサブフレームが含まれ、
先頭のサブフレームのNullセル数は、前記第1の制御情報に含まれ、
先頭のサブフレーム以外の残りのサブフレームのNullセル数は、前記第2の制御情報に含まれる
(3)に記載のデータ処理装置。
(5)
前記第1の制御情報は、前記第2の制御情報と比べて、データのサイズが小さく、かつ、よりロバストに伝送される
(3)又は(4)に記載のデータ処理装置。
(6)
前記生成部は、前記Nullセル数の代わりに、前記アクティブデータセル数、又は前記Nullセル数の1/2の数を含むシグナリングを生成する
(2)に記載のデータ処理装置。
(7)
前記物理層フレームは、ATSC(Advanced Television Systems Committee)3.0で規定される物理層フレームであって、
前記第1の制御情報は、ATSC3.0で規定されるL1基本情報(L1-Basic)であり、
前記第2の制御情報は、ATSC3.0で規定されるL1詳細情報(L1-Detail)であり、
前記サブフレームには、当該サブフレームの境界のシンボルであるSBS(Subframe Boundary Symbol)が含まれる
(3)乃至(5)のいずれかに記載のデータ処理装置。
(8)
データ処理装置のデータ処理方法において、
前記データ処理装置が、
物理層フレームに含まれるサブフレームのセルのうち、Nullセルの数を示すNullセル数を含むシグナリングを生成し、
前記シグナリングを、前記物理層フレームのプリアンブルに含まれるように処理する
ステップを含むデータ処理方法。
(9)
物理層フレームのプリアンブルに含まれるシグナリングであって、前記物理層フレームに含まれるサブフレームのセルのうち、Nullセルの数を示すNullセル数を含む前記シグナリングを処理する処理部を備える
データ処理装置。
(10)
前記処理部は、伝送路を介して伝送されてくる受信信号に含まれる、物理層の系列のデータをデコードして、前記シグナリングに含まれる前記Nullセル数を解読する
(9)に記載のデータ処理装置。
(11)
前記処理部により解読された前記Nullセル数に応じて有効なデータに対し、周波数方向のデインターリーブを行う周波数デインターリーブ部をさらに備える
(10)に記載のデータ処理装置。
(12)
前記Nullセル数は、前記サブフレームの全てのセルの数を示すトータルデータセル数から、前記サブフレームの有効なデータのセルの数を示すアクティブデータセル数を減算することで得られるセル数である
(9)に記載のデータ処理装置。
(13)
前記シグナリングは、第1の制御情報と、前記第1の制御情報の後に読み出される第2の制御情報を含み、
前記Nullセル数は、前記第1の制御情報又は前記第2の制御情報に含まれる
(9)又は(12)に記載のデータ処理装置。
(14)
前記物理層フレームには、1以上のサブフレームが含まれ、
先頭のサブフレームのNullセル数は、前記第1の制御情報に含まれ、
先頭のサブフレーム以外の残りのサブフレームのNullセル数は、前記第2の制御情報に含まれる
(13)に記載のデータ処理装置。
(15)
前記第1の制御情報は、前記第2の制御情報と比べて、データのサイズが小さく、かつ、よりロバストに伝送される
(13)又は(14)に記載のデータ処理装置。
(16)
前記シグナリングは、前記Nullセル数の代わりに、前記アクティブデータセル数、又は前記Nullセル数の1/2の数を含み、
前記処理部は、前記アクティブデータセル数、又は前記Nullセル数の1/2の数を含む前記シグナリングを処理する
(12)に記載のデータ処理装置。
(17)
前記物理層フレームは、ATSC3.0で規定される物理層フレームであって、
前記第1の制御情報は、ATSC3.0で規定されるL1基本情報(L1-Basic)であり、
前記第2の制御情報は、ATSC3.0で規定されるL1詳細情報(L1-Detail)であり、
前記サブフレームには、当該サブフレームの境界のシンボルであるSBS(Subframe Boundary Symbol)が含まれる
(13)乃至(15)のいずれかに記載のデータ処理装置。
(18)
データ処理装置のデータ処理方法において、
前記データ処理装置が、
物理層フレームのプリアンブルに含まれるシグナリングであって、前記物理層フレームに含まれるサブフレームのセルのうち、Nullセルの数を示すNullセル数を含む前記シグナリングを処理する
ステップを含むデータ処理方法。
Claims (18)
- 物理層フレームに含まれるサブフレームのセルのうち、Nullセルの数を示すNullセル数を含むシグナリングを生成する生成部と、
前記シグナリングを、前記物理層フレームのプリアンブルに含まれるように処理する処理部と
を備えるデータ処理装置。 - 前記Nullセル数は、前記サブフレームの全てのセルの数を示すトータルデータセル数から、前記サブフレームの有効なデータのセルの数を示すアクティブデータセル数を減算することで得られるセル数である
請求項1に記載のデータ処理装置。 - 前記シグナリングは、第1の制御情報と、前記第1の制御情報の後に読み出される第2の制御情報を含み、
前記Nullセル数は、前記第1の制御情報又は前記第2の制御情報に含まれる
請求項2に記載のデータ処理装置。 - 前記物理層フレームには、1以上のサブフレームが含まれ、
先頭のサブフレームのNullセル数は、前記第1の制御情報に含まれ、
先頭のサブフレーム以外の残りのサブフレームのNullセル数は、前記第2の制御情報に含まれる
請求項3に記載のデータ処理装置。 - 前記第1の制御情報は、前記第2の制御情報と比べて、データのサイズが小さく、かつ、よりロバストに伝送される
請求項4に記載のデータ処理装置。 - 前記生成部は、前記Nullセル数の代わりに、前記アクティブデータセル数、又は前記Nullセル数の1/2の数を含むシグナリングを生成する
請求項2に記載のデータ処理装置。 - 前記物理層フレームは、ATSC(Advanced Television Systems Committee)3.0で規定される物理層フレームであって、
前記第1の制御情報は、ATSC3.0で規定されるL1基本情報(L1-Basic)であり、
前記第2の制御情報は、ATSC3.0で規定されるL1詳細情報(L1-Detail)であり、
前記サブフレームには、当該サブフレームの境界のシンボルであるSBS(Subframe Boundary Symbol)が含まれる
請求項3に記載のデータ処理装置。 - データ処理装置のデータ処理方法において、
前記データ処理装置が、
物理層フレームに含まれるサブフレームのセルのうち、Nullセルの数を示すNullセル数を含むシグナリングを生成し、
前記シグナリングを、前記物理層フレームのプリアンブルに含まれるように処理する
ステップを含むデータ処理方法。 - 物理層フレームのプリアンブルに含まれるシグナリングであって、前記物理層フレームに含まれるサブフレームのセルのうち、Nullセルの数を示すNullセル数を含む前記シグナリングを処理する処理部を備える
データ処理装置。 - 前記処理部は、伝送路を介して伝送されてくる受信信号に含まれる、物理層の系列のデータをデコードして、前記シグナリングに含まれる前記Nullセル数を解読する
請求項9に記載のデータ処理装置。 - 前記処理部により解読された前記Nullセル数に応じて有効なデータに対し、周波数方向のデインターリーブを行う周波数デインターリーブ部をさらに備える
請求項10に記載のデータ処理装置。 - 前記Nullセル数は、前記サブフレームの全てのセルの数を示すトータルデータセル数から、前記サブフレームの有効なデータのセルの数を示すアクティブデータセル数を減算することで得られるセル数である
請求項9に記載のデータ処理装置。 - 前記シグナリングは、第1の制御情報と、前記第1の制御情報の後に読み出される第2の制御情報を含み、
前記Nullセル数は、前記第1の制御情報又は前記第2の制御情報に含まれる
請求項12に記載のデータ処理装置。 - 前記物理層フレームには、1以上のサブフレームが含まれ、
先頭のサブフレームのNullセル数は、前記第1の制御情報に含まれ、
先頭のサブフレーム以外の残りのサブフレームのNullセル数は、前記第2の制御情報に含まれる
請求項13に記載のデータ処理装置。 - 前記第1の制御情報は、前記第2の制御情報と比べて、データのサイズが小さく、かつ、よりロバストに伝送される
請求項14に記載のデータ処理装置。 - 前記シグナリングは、前記Nullセル数の代わりに、前記アクティブデータセル数、又は前記Nullセル数の1/2の数を含み、
前記処理部は、前記アクティブデータセル数、又は前記Nullセル数の1/2の数を含む前記シグナリングを処理する
請求項12に記載のデータ処理装置。 - 前記物理層フレームは、ATSC3.0で規定される物理層フレームであって、
前記第1の制御情報は、ATSC3.0で規定されるL1基本情報(L1-Basic)であり、
前記第2の制御情報は、ATSC3.0で規定されるL1詳細情報(L1-Detail)であり、
前記サブフレームには、当該サブフレームの境界のシンボルであるSBS(Subframe Boundary Symbol)が含まれる
請求項13に記載のデータ処理装置。 - データ処理装置のデータ処理方法において、
前記データ処理装置が、
物理層フレームのプリアンブルに含まれるシグナリングであって、前記物理層フレームに含まれるサブフレームのセルのうち、Nullセルの数を示すNullセル数を含む前記シグナリングを処理する
ステップを含むデータ処理方法。
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Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006270824A (ja) * | 2005-03-25 | 2006-10-05 | Pioneer Electronic Corp | ディジタル放送受信装置及びディジタル放送受信方法 |
JP2009302642A (ja) * | 2008-06-10 | 2009-12-24 | Toshiba Corp | 中継局および中継方法 |
JP2012100178A (ja) * | 2010-11-05 | 2012-05-24 | Hitachi Consumer Electronics Co Ltd | デジタル放送の送信装置及び送信方法、並びに、デジタル放送の受信装置及び受信方法 |
JP2014082675A (ja) * | 2012-10-17 | 2014-05-08 | Alpine Electronics Inc | 車載デジタル放送受信機 |
JP2015092692A (ja) * | 2010-02-26 | 2015-05-14 | パナソニックIpマネジメント株式会社 | 送信方法、受信方法、送信装置、受信装置 |
US20150180799A1 (en) * | 2013-12-20 | 2015-06-25 | Thomas D. Lovett | Hierarchical/lossless packet preemption to reduce latency jitter in flow-controlled packet-based networks |
JP2015133723A (ja) * | 2010-02-26 | 2015-07-23 | パナソニックIpマネジメント株式会社 | Tsパケットヘッダの圧縮 |
JP2015522969A (ja) * | 2012-05-10 | 2015-08-06 | サムスン エレクトロニクス カンパニー リミテッド | デジタルビデオブロードキャスティングシステムにおけるデータストリームを送受信する方法及び装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7295763B1 (en) * | 1998-11-13 | 2007-11-13 | Thomson Licensing | Storage medium for digital television signal |
CN101465830B (zh) * | 2007-12-19 | 2012-10-17 | 华为技术有限公司 | 发送、接收同步信息的方法与系统、装置 |
WO2009126440A1 (en) | 2008-04-08 | 2009-10-15 | Marvell World Trade Ltd. | Physical layer frame format for wideband wireless communications systems |
KR101518346B1 (ko) * | 2008-10-20 | 2015-05-08 | 삼성전자주식회사 | 직교주파수분할다중 시스템에서 프리엠블 송수신 장치 및 방법 |
EP2451101B1 (en) * | 2009-07-02 | 2019-06-05 | Panasonic Intellectual Property Management Co., Ltd. | Receiver device, integrated circuit, receiving method, and receiving program |
KR102130151B1 (ko) * | 2013-07-22 | 2020-07-03 | 삼성전자주식회사 | 송신 장치, 수신 장치 및 그 신호 처리 방법 |
KR102284042B1 (ko) * | 2013-09-04 | 2021-07-30 | 삼성전자주식회사 | 송신 장치, 수신 장치 및 그 신호 처리 방법 |
EP3182712B1 (en) * | 2014-08-12 | 2019-12-11 | Lg Electronics Inc. | Method and device for transmitting broadcast signal using a link layer packet header structure allowing variable packet types |
WO2016111560A1 (en) * | 2015-01-07 | 2016-07-14 | Samsung Electronics Co., Ltd. | Transmitting apparatus and receiving apparatus and signal processing method thereof |
US11032194B2 (en) * | 2015-01-09 | 2021-06-08 | Samsung Electronics Co., Ltd. | Transmitting apparatus and signal processing method using removal of transport steam packet header |
US10348448B2 (en) * | 2015-01-22 | 2019-07-09 | Samsung Electronics Co., Ltd. | Transmitter and repetition method thereof |
EP3761524B1 (en) * | 2018-06-06 | 2023-10-18 | ST Engineering iDirect (Europe) Cy NV | System for synchronizing a ground segment to a beam hopping satellite |
-
2017
- 2017-01-13 CA CA3011228A patent/CA3011228A1/en active Pending
- 2017-01-13 WO PCT/JP2017/000924 patent/WO2017130724A1/ja active Application Filing
- 2017-01-13 US US15/773,809 patent/US11223881B2/en active Active
- 2017-01-13 MX MX2018008916A patent/MX2018008916A/es unknown
- 2017-01-13 KR KR1020187016955A patent/KR20180104602A/ko not_active Application Discontinuation
- 2017-01-13 JP JP2017563795A patent/JP6838003B2/ja active Active
- 2017-01-13 EP EP17743955.1A patent/EP3410733B1/en active Active
- 2017-01-17 TW TW106101570A patent/TWI720108B/zh active
-
2021
- 2021-12-14 US US17/644,250 patent/US11582528B2/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006270824A (ja) * | 2005-03-25 | 2006-10-05 | Pioneer Electronic Corp | ディジタル放送受信装置及びディジタル放送受信方法 |
JP2009302642A (ja) * | 2008-06-10 | 2009-12-24 | Toshiba Corp | 中継局および中継方法 |
JP2015092692A (ja) * | 2010-02-26 | 2015-05-14 | パナソニックIpマネジメント株式会社 | 送信方法、受信方法、送信装置、受信装置 |
JP2015133723A (ja) * | 2010-02-26 | 2015-07-23 | パナソニックIpマネジメント株式会社 | Tsパケットヘッダの圧縮 |
JP2012100178A (ja) * | 2010-11-05 | 2012-05-24 | Hitachi Consumer Electronics Co Ltd | デジタル放送の送信装置及び送信方法、並びに、デジタル放送の受信装置及び受信方法 |
JP2015522969A (ja) * | 2012-05-10 | 2015-08-06 | サムスン エレクトロニクス カンパニー リミテッド | デジタルビデオブロードキャスティングシステムにおけるデータストリームを送受信する方法及び装置 |
JP2014082675A (ja) * | 2012-10-17 | 2014-05-08 | Alpine Electronics Inc | 車載デジタル放送受信機 |
US20150180799A1 (en) * | 2013-12-20 | 2015-06-25 | Thomas D. Lovett | Hierarchical/lossless packet preemption to reduce latency jitter in flow-controlled packet-based networks |
Non-Patent Citations (1)
Title |
---|
See also references of EP3410733A4 * |
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