KR102113789B1 - Transmitting apparatus and receiving apparatus and controlling method thereof - Google Patents

Abstract

The transmitting device is started. The transmitting apparatus includes a frame generating unit for generating a plurality of frames including data to be transmitted, an information inserting unit for inserting signaling information in each signaling area of the plurality of frames, and a transmitting unit for transmitting a plurality of frames in which signaling information is inserted. , The signaling information includes at least one of information about a protocol version of a plurality of frames, information about a type of frame, and information about a data insertion method.

Description

A transmitting device, a receiving device, and a control method therefor {TRANSMITTING APPARATUS AND RECEIVING APPARATUS AND CONTROLLING METHOD THEREOF}

The present invention relates to a transmitting device, a receiving device and a control method thereof, and more particularly, to a transmitting device, a receiving device and a control method for transmitting a plurality of frames with signaling information inserted therein.

Recently, broadcast communication services are becoming multi-functional and high-quality in broadband. In particular, with the development of electronic technology, the spread of portable broadcasting devices such as high-definition digital TVs, high-end smart phones, etc. is increasing, and accordingly, demands for various reception methods and various service support for broadcasting services are increasing.

According to this demand, as one example, a broadcast communication standard such as Digital Video Broadcasting the Second Generation Terrestrial (DVB-T2) has been developed. DVB-T2 (Digital Video Broadcasting the Second Generation Terrestrial) is a second-generation European terrestrial digital broadcasting standard that improves the performance of DVB-T in service by adopting it as a standard in more than 35 countries around the world, including Europe. -T2 realized the increase of transmission capacity and high bandwidth efficiency by applying the latest technologies such as LDPC (Low Density Parity Check) code and 256QAM modulation method, and accordingly, can provide various high quality services such as HDTV in a limited band. It has an advantage.

Meanwhile, in order to process data, DVB-T2 includes a signaling area in each frame, and data can be processed more efficiently according to information included in the signaling area.

Accordingly, there is a need to newly define information included in the signaling area of the frame.

The present invention has been devised in accordance with the above-described needs, and an object of the present invention is to provide a transmitting apparatus, a receiving apparatus, and a control method for reconstructing information included in a signaling area and processing data based on the reconstructed information. have.

According to an embodiment for achieving the above object, the transmitting apparatus includes a frame generation unit for generating a plurality of frames including data to be transmitted, an information insertion unit for inserting signaling information into each of the plurality of frames, and the signaling area And a transmitter for transmitting a plurality of frames in which signaling information is inserted, wherein the signaling information includes at least one of information about a protocol version of the plurality of frames, information about a type of the frame, and information about an insertion method of the data. Includes one.

Here, the signaling information includes information on an interval between frames including data of the same type among the plurality of frames, a position of a frame including information on an emergency alert broadcast among the plurality of frames, and the emergency alert broadcast It may further include information about whether to include the information on.

In addition, the signaling information includes pre-signaling and post-signaling, and the post-signaling is configurable post-signaling and dynamic post-signaling. signalling).

Further, the pre-signaling is performed at intervals between frames containing information of the protocol type of the frame, information on the type of the frame, information on the insertion method of the data, and frames of the same type among the plurality of frames. Information, and the configurable post signaling includes information on a location of a frame including information on emergency alert broadcast among the plurality of frames and whether information on the emergency alert broadcast is included, The dynamic post signaling may include information on the number of insertions and the interval of insertion in the insertion method of the data.

Meanwhile, the transmission device is implemented with a DVB-T2 transmission system, and the signaling area of the frame may be an area allocated to L1 signaling.

The reception apparatus according to an embodiment of the present invention includes: a reception unit receiving a plurality of frames including signaling information and data, a signaling processing unit extracting the signaling information from the received frame, and the extracted signaling information based on the It includes a signal processing unit for signal processing the data included in the frame, the signaling information, the information about the protocol version of the frame, the information on the type of the frame and the information on the insertion method of the data It can contain.

Here, the signaling information includes information on an interval between frames including data of the same type among the plurality of frames, a position of a frame including information on an emergency alert broadcast among the plurality of frames, and the emergency alert broadcast It may further include information about whether to include the information on.

In addition, the signaling information includes pre-signaling and post-signaling, and the post-signaling is configurable post-signaling and dynamic post-signaling. signalling).

Further, the pre-signaling is performed at intervals between frames containing information of the protocol type of the frame, information on the type of the frame, information on the insertion method of the data, and frames of the same type among the plurality of frames. Information, and the configurable post signaling includes information on a location of a frame including information on emergency alert broadcast among the plurality of frames and whether information on the emergency alert broadcast is included, The dynamic post signaling may include information on the number of insertions and the interval of insertion in the insertion method of the data.

Further, the plurality of frames are transmitted from a DVB-T2 transmission system, and the signaling area of the frame may be an area allocated to L1 signaling.

A control method of a transmitting apparatus according to an embodiment of the present invention includes generating a plurality of frames including data to be transmitted, inserting signaling information into each of the plurality of frames, and a plurality of the signaling information is inserted. And transmitting the frames of the, wherein the signaling information includes at least one of information about a protocol version of the plurality of frames, information about a type of the frame, and information about an insertion method of the data.

Here, the signaling information includes information on an interval between frames including data of the same type among the plurality of frames, a position of a frame including information on an emergency alert broadcast among the plurality of frames, and the emergency alert broadcast It may further include information about whether to include the information on.

In addition, the signaling information includes pre-signaling and post-signaling, and the post-signaling is configurable post-signaling and dynamic post-signaling. signalling).

Further, the pre-signaling is performed at intervals between frames containing information of the protocol type of the frame, information on the type of the frame, information on the insertion method of the data, and frames of the same type among the plurality of frames. Information, and the configurable post signaling includes information on a location of a frame including information on emergency alert broadcast among the plurality of frames and whether information on the emergency alert broadcast is included, The dynamic post signaling may include information on the number of insertions and the interval of insertion in the insertion method of the data.

In addition, the transmission device is implemented with a DVB-T2 transmission system, and the signaling area of the frame may be an area allocated to L1 signaling.

Meanwhile, a control method of a reception apparatus according to an embodiment of the present invention includes receiving a plurality of frames including signaling information and data, extracting the signaling information from the received frames, and extracting the signaling information. And processing the data included in the frame based on the signal. The signaling information includes at least one of information on a protocol version of the frame, information on a type of the frame, and information on an insertion method of the data. Includes one.

Here, the signaling information includes information on an interval between frames including data of the same type among the plurality of frames, a position of a frame including information on an emergency alert broadcast among the plurality of frames, and the emergency alert broadcast It may include information about whether to include information about.

In addition, the signaling information includes pre-signaling and post-signaling, and the post-signaling is configurable post-signaling and dynamic post-signaling. signalling).

Further, the pre-signaling is performed at intervals between frames containing information of the protocol type of the frame, information on the type of the frame, information on the insertion method of the data, and frames of the same type among the plurality of frames. Information, and the configurable post signaling includes information on a location of a frame including information on emergency alert broadcast among the plurality of frames and whether information on the emergency alert broadcast is included, The dynamic post signaling may include information on the number of insertions and the interval of insertion in the insertion method of the data.

Further, the plurality of frames are transmitted from a DVB-T2 transmission system, and the signaling area of the frame may be an area for transmitting L1 signaling.

As described above, according to various embodiments of the present invention, by reconstructing information included in the signaling area, information included in the signaling area increases, and thus data can be variously processed.

1 is a block diagram showing the configuration of a transmission apparatus according to an embodiment of the present invention.
2 is a block diagram for explaining the configuration of the DVB-T2 that is the basis of the present invention.
3 is a block diagram illustrating a configuration for generating signaling information according to an embodiment of the present invention.
4A to 4C are diagrams for explaining a unit structure of a transmission frame according to an embodiment of the present invention.
5 is a diagram illustrating a field included in L1 pre-signaling according to an embodiment of the present invention.
6 is a diagram illustrating a field included in configurable L1 post signaling included in L1 post signaling according to an embodiment of the present invention.
7 is a diagram illustrating a field included in dynamic L1 post signaling included in L1 post signaling according to an embodiment of the present invention.
8 is a block diagram showing the configuration of a receiving device according to an embodiment of the present invention.
9 is a block diagram for specifically explaining a signal processing unit according to an embodiment of the present invention.
10 is a block diagram showing the configuration of a signaling processing unit according to an embodiment of the present invention.
11A to 11D are diagrams for explaining a base band packet (BPP) according to an embodiment of the present invention.
12 is a flowchart illustrating a control method of a transmitting apparatus according to an embodiment of the present invention.
13 is a flowchart illustrating a method of controlling a receiving device according to an embodiment of the present invention.

Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings. And, in the description of the present invention, if it is determined that a detailed description of related known functions or configurations may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or practice. Therefore, the definition should be made based on the contents throughout this specification.

1 is a block diagram showing the configuration of a transmission apparatus according to an embodiment of the present invention.

According to FIG. 1, the transmission device 100 includes a frame generation unit 110, an information insertion unit 120, and a transmission unit 130.

The frame generator 110 may generate a plurality of frames including data to be transmitted. As an embodiment, the DVB-T2 system applies a PLP concept to enable various broadcast services having different modulation schemes, channel coding rates, time and cell interleaving lengths, etc., to one broadcast channel.

Here, PLP is independently here, PLP means a signal path that is independently processed. That is, each service (eg, video, extended video, audio, data stream, etc.) may be transmitted and received through multiple RF channels, and PLP is a path through which these services are transmitted or a stream transmitted through the path. . In addition, the PLP may be located in slots distributed at a time interval on a plurality of RF channels, or may be distributed at a time interval on one RF channel. That is, one PLP may be distributed and transmitted on a single RF channel or multiple RF channels with a time interval.

The PLP structure is composed of Input mode A that provides one PLP and Input mode B that provides multiple PLPs. In particular, when Input mode B is supported, a robust specific service can be provided and one stream is distributed and transmitted. By increasing the time interleaving length, a time diversity gain can be obtained. In addition, when only a specific stream is received, it can be used with low power by turning off the receiver for the rest of the time, which is suitable for portable and mobile broadcasting services.

Here, the time diversity is to reduce the deterioration of transmission quality in a mobile communication transmission path, and if the transmission side transmits the same signal multiple times at regular intervals, the reception side resynthesizes these reception signals to obtain good transmission quality. Technology.

In addition, transmission efficiency can be improved by including and transmitting information that can be commonly transmitted to a plurality of PLPs in one PLP. PLP0 plays a role, and such a PLP is referred to as a common PLP and PLP0 The rest of the PLPs can be used for data transmission, and such a PLP is called a data PLP.

When such a PLP is used, not only the home HDTV program can be received, but also the SDTV program can be provided on the go and on the go. In addition, it is possible to provide a variety of broadcast services to viewers through broadcasting stations or broadcast content providers, as well as to provide differentiated services capable of receiving broadcasts in difficult to see areas.

That is, the frame generator 110 generates a frame by mapping data to be transmitted to at least one signal processing path, and performs signal processing for each path. For example, signal processing includes input stream synchronization, delay compensation, null packet deletion, CRC encoding, header insertion, and encoding. , Interleaving, and modulation. Frames processed for each path are generated as one transmission frame together with signaling information, and the generated transmission frame is transmitted to a receiving device (not shown).

The information inserting unit 120 inserts signaling information in each signaling area of a plurality of frames.

Here, the signaling information may be a layer 1 (L1) signaling signal that transmits an L1 signal for frame synchronization, and may include configurable post signaling and dynamic post signaling. , The signaling area may be a P2 symbol for frame synchronization. A signaling region may be added to the beginning of the frame to generate a transmission signal. As an embodiment, a unit of a transmission frame in which a P1 symbol and a signaling region are added to a frame in a DVB-T2 system is called a T2 frame.

That is, the P2 symbol can be divided into pre-signaling and pre-signaling. In addition, the post signaling region may include configurable post signaling and dynamic post signaling.

Meanwhile, here, L1 signaling, configurable post signaling, dynamic post signaling, pre-signaling and post-signaling include the meanings of L1 signaling information, configurable post-signaling information, dynamic post-signaling information, pre-signaling information, and post-signaling information. It is defined as doing.

P1 and P2 symbols are terms in the DVB-T2 example, and the P1 symbol can be understood as a symbol indicating the start of a frame and the P2 symbol as a symbol including a signaling region. As another embodiment, the start of a frame may be announced using one preamble symbol including a signaling region.

Meanwhile, according to an embodiment of the present invention, the signaling information inserted into the signaling area may include at least one of information regarding a protocol version of a plurality of frames, information about a type of a frame, and information about a data insertion method. have.

In addition, the signaling information includes information about the interval between frames containing the same type of data among the plurality of frames, the position of the frame including the information about the emergency alert broadcast among the plurality of frames, and information about the emergency alert broadcast. It may further include information about whether or not included, the description of each information will be described later.

2 is a block diagram for explaining the configuration of the DVB-T2 that is the basis of the present invention.

According to FIG. 2, the DVB-T2 transmission system 1000 may include an input processor 1100, a BICM encoder 1200, a frame builder 1300 and a modulator 1400.

The DVB-T2 transmission system 1000 will be briefly described for each configuration in that it is the same as that defined in DVB-T2, which is one of the European digital broadcasting standards. For details, please refer to "Digital Video Broadcasting (DVB); Frame structure channel coding and modulation for a second generation digital terrestrial television broadcasting system (DVB-T2)".

The input processor 1100 generates a baseband frame (BBFRAME) from an input stream for data to be serviced. Here, the input stream may be MPEG-2 Transport Stream (TS), Generic Stream (GS), or the like.

The BICM encoder 1200 performs encoding by determining an FEC coding rate and a constellation order according to an area (Fixed PHY Frame or Mobile PHY Frame) in which data to be serviced is transmitted. Depending on the implementation, signaling information for data to be serviced may be encoded through a separate BICM encoder (not shown) or shared by sharing the BICM encoder 1200 with data to be serviced.

The frame builder 1300 and the modulator 1400 determine the OFDM parameter for the signaling area and the OFDM parameter for the area to which the data to be serviced is transmitted, construct a frame, and add a sink area to generate the frame. Then, modulation is performed to modulate the generated frame into an RF signal, and the RF signal is transmitted to a receiver.

Meanwhile, the frame generation described in FIG. 1 may be performed by the input processor 1100, and information insertion may be performed by the frame builder 1300.

3 is a block diagram illustrating a configuration for generating signaling information according to an embodiment of the present invention.

Referring to FIG. 3, an input processor 1100 and a BICM encoder 1200 are illustrated. The input processor 1100 may include a scheduler 1110. BICM encoder 1200 includes L1 signaling generator 1210, FEC encoders 1220-1, 1220-2, bit interleaver 1230-2, demux 1240-2, and constellation mappers 1250-1, 1250. -2). The BICM encoder 1200 may further include a time interleaver (not shown). Further, the L1 signaling generator 1210 may be included in the input processor 1100.

The n service data are mapped to PLP0 to PLPn, respectively. The scheduler 1110 determines location, modulation, and code rates for each PLP to map multiple PLPs to the physical layer of T2. That is, the scheduler 1110 generates L1 signaling. In some cases, the scheduler 1110 may output dynamic information to the frame builder 1300 during L1 post signaling of the current frame. Also, the scheduler 1110 may transmit L1 signaling to the BICM encoder 1200. L1 signaling includes L1 pre-signaling and L1 post-signaling.

The L1 signaling generator 1210 distinguishes and outputs L1 pre-signaling and L1 post-signaling. The FEC encoders 1220-1 and 1220-2 perform FEC encoding including shortening and puncturing for L1 pre-signaling and L1 post-signaling, respectively. The bit interleaver 1230-2 performs interleaving in units of bits for encoded L1 post signaling. The demux 1240-2 controls the robustness of the bits by adjusting the order of the bits constituting the cell, and outputs a cell including the bits. The two constellation mappers 1250-1 and 1250-2 respectively map cells of L1 pre-signaling and L1 post-signaling to constellations. The L1 pre-signaling and L1 post-signaling processed through the above-described process are output to the frame builder 1230. Accordingly, L1 pre-signaling and L1 post-signaling can be inserted into the frame.

4A to 4C are diagrams for explaining a unit structure of a transmission frame according to an embodiment of the present invention.

As shown in FIG. 4A, an input processing module in which an input stream is processed as an L1 packet may operate at a data pipe level.

4A illustrates a process in which an input stream is processed as an L1 packet, and a plurality of input streams 411 to 413 are processed as data pipes 421 to 423 for a plurality of L2 packets through an input pre-processing process. , Data pipes 421 to 423 for a plurality of L2 packets are encapsulated into data pipes 431 to 433 for a plurality of L1 packets through an input processing process, and are scheduled as transmission frames (FIGS. 3 and 1110). Here, the L2 packet may be of two types: a fixed stream such as a transport stream (TS) stream and a variable stream such as a general stream encapsulation (GSE) stream.

4B is a diagram for explaining a local frame structure for each PLP.

As shown in FIG. 4B, the L1 packet 430 includes a header, a data field, and a padding field.

The L1 packet 430 is processed as an L1 FEC packet 440 by adding parity 432 through an FEC encoding process.

The L1 FEC packet 440 is processed as a FEC block 450 through a bit interleaving and constellation mapping process, a plurality of FEC blocks are processed as a time interleaving block 460 through a cell interleaving process, and a plurality of time interleaving blocks are The interleaving frame 470 is configured.

4C is a diagram for explaining the structure of an interleaving frame.

Referring to FIG. 4C, the interleaving frame 470 may be transmitted through different transmission frames 461 and 462, and a plurality of transmission frames may form one super frame 480.

Meanwhile, one transmission frame 461 may be composed of a P1 symbol 10 indicating a start position of a frame, a P2 symbol 20 transmitting an L1 signal, and a data symbol 30 transmitting data.

The P1 symbol 10 is located at the first part of the transmission frame 461 and can be used to detect the starting point of the T2 frame. For example, the P1 symbol 10 may transmit 7 bits of information.

The P2 symbol 20 is located after the P1 symbol 10 of the T2 frame. One transmission frame 461 may include a plurality of P2 symbols 20 according to the FFT size. The number of P2 symbols 20 included according to the FFT size is as follows.

FFT size Number of P2 symbols 1K 16 2K 8 4K 4 8K 2 16K One 32K One

The P2 symbol 20 includes L1 pre-signaling 21 and L1 post-signaling 23. The L1 pre-signaling 21 provides basic transmission parameters including parameters required for receiving and decoding L1 post signaling.

The L1 post signaling 23 includes configurable post signaling 23-1 and dynamic post signaling 23-2. In addition, the L1 post signaling 23 may optionally include an extension field 23-3. In addition, although not shown in the drawing, the L1 post signaling 23 may further include a CRC field and an L1 padding field, if necessary.

5 is a diagram illustrating a field included in L1 pre-signaling according to an embodiment of the present invention.

For example, BBP mode, that is, INPUT_BBP_MODE indicates a mode for whether all PLPs included in the current super frame 480 have the same base band packet (BPB). The BBP mode information may be included in L1 pre-signaling.

For example, INPUT_BBP_MODE may be composed of 2 bits as shown in FIG. 5, and may have a value as shown in Table 2 below.

00 Every PLP in the current super-frame carries one and only one TS stream, with the BBP format for high efficiency defined in section 3.2.6 01 Every PLP in the current super-frame carries one TS stream and at least one stream of type different than TS. The BBP format for the TS stream is defined in section 3.2.2 (TS input, mixed mode). 10 Every PLP in the current super-frame does not carry ant TS stream.
The BBP formats defined in sections 3.2.1, 3.2.3, 3.2.4 and 3.2.5, apply for IP input, signaling input, padding input, and any generic input, respectively. 11 Otherwise

That is, when INPUT_BBP_MODE is set to 00, all PLPs transmit TS streams with BBP, and when INPUT_BBP_MODE is set to 01, all PLPs have one TS stream and at least one other type of stream (for example, GSE, GFPS, GCS, etc.), where the BBP format for the TS stream is defined in section 3.2.2. In addition, when INPUT_BBP_MODE is set to 11, all PLPs do not transmit any TS stream.

Here, the BBP is a packet generated by converting IP or TS into a BBP format by adding a baseband packetizer to an input stream processor according to the current DVB-T2 standard. Information including parameters related to the data field is included, which is collected by a certain unit into a single packet, and then added to a plurality of T2 frames in a certain unit. A detailed description thereof will be described later.

Meanwhile, the signaling information according to an embodiment of the present invention may include information regarding a protocol version of a plurality of frames. The protocol version, that is, FRAME_PROTOCOL_VERSION indicates syntax version information of L1 signaling. 6 bits may be allocated to the protocol version, and may be included in L1 pre-signaling.

Specifically, a change regarding the protocol version level is displayed. In order to be compatible with the currently used version, the FRAME_PROTOCOL_VERSION field value is set to '000000b', and the FRAME_PROTOCOL_VERSION field value increases each time the version is upgraded from the current version of L1 signaling.

In addition, the FRAME_PROTOCOL_VERSION field is divided into a major protocol version and a minor protocol version. For example, if the current ATSC 3.0 version is changed to the ATSC 4.0 version, the major protocol version is changed. If the current ATSC 3.0 version is changed to the ATSC 3.1 version through modification or upgrade, this is a minor protocol version. This is a change. That is, even if the minor protocol version is changed, the major protocol version remains the same.

On the other hand, the signaling information according to an embodiment of the present invention may include information on the type of the frame, the frame mode, that is, FRAME_MODE indicates the type to which the frame is applied. FRAME_MODE may be included in L1 pre-signaling.

As an example, FRAME_MODE may be composed of 3 bits as shown in FIG. 5, and may have a value as shown in Table 3 below.

000 Stationary frame 001 Mobile frame 010-111 Reserved for future use

That is, when FRAME_MODE is set to 000, it is a frame of a stationary frame type, which can be used for a fixed device such as a tv. In addition, when FRAME_MODE is set to 001, it is a frame of a mobile frame type, which can be used in a mobile device such as a smart phone.

Accordingly, even if the transmitting device 100 transmits a combination of a frame supporting a fixed device and a frame supporting a mobile device, the receiving device (not shown) receives the type of the receiving device (not shown) through the value set in FRAME_MODE. You can select and receive the right frame.

Meanwhile, ATTENNA_CONFIGURATION shown in FIG. 5 indicates whether an antenna used to transmit data symbols of a current super frame is a single antenna or a plurality of antennas, and ATTENNA_CONFIGURATION may be included in L1 pre-signaling.

For example, ATTENNA_CONFIGURATION may be composed of 3 bits as shown in FIG. 5, and may have a value as shown in Table 4 below.

000 SISO mode 001 MISO mode 010 MIMO Precoding A 011 MIMO Precoding B 100-111 Reserved for future use

That is, when the ATTENNA_CONFIGURATION field is set to 000, it indicates a single input single output (SISO) mode using a single antenna, and when the ATTENNA_CONFIGURATION field is set to 001, multiple input single output (MISO) using a single antenna and multiple antennas Represents a mode, and when the ATTENNA_CONFIGURATION field is set to 010, 011, indicates a Multiple Input Multiple Output (MIMO) mode using multiple antennas.

Meanwhile, FFT_SIZE shown in FIG. 5 represents an FFT size used for data symbols of the current super frame, and may be included in L1 pre-signaling.

For example, FFT_SIZE may be composed of 2 bits as shown in FIG. 5, and may have a value as shown in Table 5 below.

00 8K 01 16K 10 32K 11 Reserved for future use

That is, when the FFT_SIZE field is set to 00, the FFT size is 8K, when set to 01, the FFT size is 16K, and when set to 10, the FFT size represents 32K.

In addition, GUARD_INTERVAL shown in FIG. 5 indicates a guard interval interval inserted in the current super frame, and may be included in L1 pre-signaling.

As an example, GUARD_INTERVAL may be composed of 4 bits, as shown in FIG. 5, and may have a value as shown in Table 6 below.

0000 3/512 0001 6/512 0010 12/512 0011 24/512 0100 36/512 0101 48/512 0110 57/512 0111 72/512 1000 96/512 1001-1111 Reserved for future use

That is, the guard interval interval varies according to the value set in the GUARD_INTERVAL field.

Meanwhile, PAPR_FLAG shown in FIG. 5 indicates whether PAPR reduction technology is used in the data symbol region.

Here, PAPR refers to the ratio of the peak power to the average power as a reference for indicating the effect of the baseband transmission signal on the transmitter. That is, in general, the power of the transmitter means the average power, but the peak power exists in the actually transmitted power, and when the peak power is not properly designed, it causes intermodulation and causes a decrease in broadcast quality. Accordingly, the transmitting apparatus 100 must transmit a broadcast signal so that the PAPR becomes small.

On the other hand, PAPR increases when subcarriers are located at the same interval. That is, when a broadcast signal is transmitted through a sub-carrier at a constant cycle, the impact on the transmitter is accumulated at the same time, resulting in a large PAPR and a decrease in broadcast quality.

As an example, PAPR_FLAG may be configured with 1 bit, as shown in FIG. 5, and may have a value as shown in Table 7 below.

0 No PAPR reduction is used One PAPR reduction is used

That is, when the value set in the PAPR_FLAG field is 0, it indicates that the PAPR reduction technology is not used, and when the value set in the PAPR_FLAG field is 1, it indicates that the PAPR reduction technology is used.

Meanwhile, PILOT_PATTERN illustrated in FIG. 5 indicates which pilot pattern is used for the data symbols constituting the super frame.

For example, PILOT_PATTERN may be composed of 4 bits as shown in FIG. 5, and may have a value as shown in Table 8 below.

000x P4, 4 001x P8, 2 010x P16, 2 011x P16, 4 100x P32, 2 xxx0 normal CP mode xxx1 extended CP mode 101x-111x Reserved for future use

Here, among the four bits allocated to PILOT_PATTERN, the first three bits are used to indicate a scattered pilot pattern, and the other bit is used to indicate a continuous pilot mode.

Therefore, if the value set in the PILOT_PATTERN field is 000x, 000 represents a distributed pilot pattern, and x represents a continuous pilot mode.

Meanwhile, NUM_FRAME_PER_SUPERFRAME shown in FIG. 5 represents the number of frames included in the super frame, and may be configured with 8 bits, and the minimum value that can be set in NUM_FRAME_PER_SUPERFRAME is 2.

In addition, NUM_DATA_SYMBOLS shown in FIG. 5 represents the number of OFDM symbols that can be included in each frame except for the preamble symbol, and can be composed of 6 bits, and the maximum and minimum values that can be set in NUM_DATA_SYMBOLS are shown in Annex D Therefore, detailed description will be omitted.

Meanwhile, the signaling information according to an embodiment of the present invention may include information on a data insertion method. The insertion method, that is, TYPE _2_PLP_FLAG indicates whether TYPE 2 PLP is used in a super frame, and is composed of 1 bit. Can be. TYPE _2_PLP_FLAG may be included in L1 pre-signaling.

Specifically, if at least one frame in the super frame includes TYPE 2 PLP, TYPE _2_PLP_FLAG is set to 1, and if no frame includes TYPE 2 PLP in the super frame, TYPE _2_PLP_FLAG is set to 0.

Here, when TYPE _2_PLP_FLAG is set to 1, fields associated therewith are included in dynamic post signaling of L1 post signaling.

In addition, FEF_MIXED_FLAG shown in FIG. 5 indicates whether an FEF frame exists in a super frame, and may be configured with 1 bit. FEF_MIXED_FLAG may be included in L1 pre-signaling.

Specifically, if the super frame includes at least one FEF frame, FEF_MIXED_FLAG may be set to 1, otherwise FEF_MIXED_FLAG may be set to 0.

In addition, NUM_RF_CH_BUNDLED shown in FIG. 5 represents the number of frequencies used for channel bundling, and may be composed of 3 bits. NUM_RF_CH_BUNDLED may be included in the L1 pre-signaly.

Here, information on the frequency associated with NUM_RF_CH_BUNDLED may be included in configurable post signaling of L1 post signaling.

Meanwhile, L1_MOD illustrated in FIG. 5 represents a constellation mapping method of L1 post signaling, and may be included in L1 pre-signaling.

As an example, L1_MOD may be composed of 4 bits as shown in FIG. 5, and may have a value as shown in Table 9 below.

0000 Uniform BPSK 0001 Uniform QPSK 0010 Uniform 16-QAM 0011 Uniform 64-QAM 0100 Uniform 256-QAM 0101-1111 Reserved for future use

That is, the constellation mapping method of L1 post signaling is different according to the value set in L1_MOD.

In addition, L1_COD shown in FIG. 5 represents a coding rate of L1 post signaling and may be included in L1 pre-signaling.

As an example, L1_COD may be composed of 2 bits as shown in FIG. 5, and may have a value as shown in Table 10 below.

00 7/15 01-11 Reserved for future use

Meanwhile, L1_FEC_TYPE shown in FIG. 5 indicates the type of L1 FEC used for L1 post signaling, and may be included in L1 pre-signaling.

As an example, L1_FEC_TYPE may be composed of 2 bits as shown in FIG. 5, and may have a value as shown in Table 11 below.

00 LDPC 16K 01-11 Reserved for future use

In addition, L1_POST_INFO_SIZE shown in FIG. 5 represents the size of the information part of L1 post signaling except CRC, and may be included in L1 pre-signaling. L1_POST_INFO_SIZE may be composed of 15 bits.

L1 ADDITIONAL_PARITY_FLAG indicates whether an additional parity bit for L1 post signaling is provided and may be included in L1 pre-signaling. Specifically, L1 ADDITIONAL_PARITY_FLAG may be configured with 1 bit, and when L1 ADDITIONAL_PARITY_FLAG is 0, no additional parity bit is provided, and when L1 ADDITIONAL_PARITY_FLAG is 1, additional parity bits are provided.

L1_REPETITION_FLAG indicates whether dynamic post signaling is provided again for the next frame, and may be included in L1 pre-signaling. Specifically, L1_REPETITION_FLAG may be configured with 1 bit, and if L1_REPETITION_FLAG is 1, dynamic post signaling is provided again in the current frame for the next frame, and when L1_REPETITION_FLAG is 0, dynamic post signaling is not provided for the next frame.

TX_ID_AVAILABILITY indicates a signal used to identify a transmitting device, and may be included in L1 pre-signaling. Specifically, TX_ID_AVAILABILITY may be configured with 8 bits, and when a signal for identifying a transmitting device is not used, TX_ID_AVAILABILITY is set to 0x00.

Meanwhile, CELL_ID indicates a region that can be covered by a communication network and may be included in L1 pre-signaling. Here, the coverable area may be configured with at least one frequency based on the number of frequencies used. Specifically, CELL_ID may be composed of 16 bits.

In addition, NETWORK_ID is used to identify a currently used network, and may be configured in a 16 ratio.

In addition, ATSC_SYSTEM_ID is used to identify an ATSC 3.0 system used in an ATSC 3.0 network, and may be configured with 16 bits.

Meanwhile, the signaling information according to an embodiment of the present invention may include information on an interval between frames including data of the same type among a plurality of frames. The number of frames inserted between the current frame and the next frame And the length to the next frame, that is, NEXT_FRAME_INTERVAL represents the number of frames inserted between frames containing the same type of data, and NEXT_FRAME_LENGTH represents the distance between frames containing the same type of data. NEXT_FRAME_INTERVAL and NEXT_FRAME_LENGTH may be included in L1 pre-signaling.

NEXT_FRAME_INTERVAL may be composed of 8 bits, and the number may be calculated in units of frames. NEXT_FRAME_LENGTH may be composed of 24 bits, and a distance may be calculated in Tu length units.

Meanwhile, CRC_32 is used to perform 332 bit error detection for L1 pre-signaling.

In FIG. 5, syntax used for L1 pre-signaling has been described as an example, but this is not limited to L1 pre-signaling, and it is obvious that it can be applied to all pre-signals other than L1.

As described above, L1 pre-signaling or pre-signaling is an interval between frames containing information on a protocol version of a frame, information on a frame type, information on a data insertion method, and data of the same type among a plurality of frames. It may contain information about.

6 is a diagram illustrating a field included in configurable L1 post signaling included in L1 post signaling according to an embodiment of the present invention.

NUM_PLP indicates the number of PLPs currently included in the super frame, and may be composed of 8 bits, and may be included in configurable L1 post signaling.

PLP_BBP_MODE indicates a BBP format currently used for an input stream transmitted by the PLP, and may be included in configurable L1 post signaling.

Specifically, PLP_BBP_MODE may be composed of 2 bits, may have a value as described in Table 2, and performs the same function as described in Table 2.

Meanwhile, the signaling information according to an embodiment of the present invention may include information on a location of a frame including information on emergency alert broadcasting among a plurality of frames and whether information on emergency alert broadcasting is included.

Specifically, EWS_COUNTER indicates where the frame containing the information related to the emergency alert broadcast is placed, and PLP_EWS_PAYLOAD indicates whether there is a payload area of the related PLP including the information related to the emergency alert broadcast.

EWS_COUNTER and PLP_EWS_PAYLOAD may be included in the configurable L1 post signaling, and may be composed of 8 bits and 1 bit, respectively, as shown in FIG. 6.

In more detail, when the EWS_COUNTER value of the current frame is set to 0, it indicates that all frames arranged after the current frame do not include information on the Gib-level alarm broadcast.

In addition, when the EWS_COUNTER value of the current frame is set to 1, it indicates that the frame disposed immediately after the current frame includes information related to the emergency alert broadcast.

In addition, when the EWS_COUNTER value of the current frame is set to 2, it indicates that the frame disposed next to the current frame includes information related to the emergency alert broadcast.

On the other hand, when the PLP_EWS_PAYLOAD value of the current frame is set to 1, the current PLP includes information on emergency alert broadcasting, and if the current PLP_EWS_PAYLOAD value is set to 0, it indicates that the current PLP does not include information on emergency alert broadcasting. .

In FIG. 6, syntax used for configurable L1 post signaling included in L1 post signaling is described as an example, but this is not limited to L1 post signaling and configurable L1 post signaling, and all post signaling and configuration other than L1 It is obvious that it can be applied to figureable post signaling.

As described above, configurable post signaling may include information on the location of a frame including information on emergency alert broadcasting among a plurality of frames and whether information on emergency alert broadcasting is included.

7 is a diagram illustrating a field included in dynamic L1 post signaling included in L1 post signaling according to an embodiment of the present invention.

Here, the dynamic L1 post signaling includes information related to information on a data insertion method included in the L1 pre-signaling. That is, when the TYPE_2_PLP_FLAG value is set to 1, TYPE 2 PLP exists, and accordingly, how many pieces are inserted per frame and the interval between the split data and the point where the TYPE 2 PLP starts.

SUB_SLICES_PER_FRAME indicates how many pieces are split and inserted for each frame, SUB_SLICES_INTERVAL indicates the interval between split data, and TYPE_2_START indicates the point at which TYPE 2 PLP starts.

In FIG. 7, syntax used for dynamic L1 post signaling included in L1 post signaling is described as an example, but this is not limited to L1 post signaling and dynamic L1 post signaling, and is applicable to all post signaling and dynamic post signaling other than L1. It is obvious that it can.

As described above, dynamic post signaling may include information on the number of insertions and the interval of insertion in the data insertion method.

Meanwhile, the above-described transmission apparatus 100 may be implemented as a DVB-T2 transmission system, and the signaling area of the frame may be an area allocated to the L1 signaling.

8 is a block diagram showing the configuration of a receiving device according to an embodiment of the present invention.

Referring to FIG. 8, the reception device 200 includes a reception unit 210, a signaling processing unit 220, and a signal processing unit 230.

The receiver 210 receives a plurality of frames including signaling information and data. Here, the signaling information may include at least one of information on a protocol version of a frame, information on a type of frame, and information on a data insertion method.

The signaling processing unit 220 may extract signaling information from the received frame. In particular, the signaling processing unit 220 extracts and decodes L1 signaling, and can extract values for information about a protocol version of a frame, information about a frame type, and information about a data insertion method. To this end, the signaling processor 220 may detect and decode a P2 symbol including L1 signaling.

The signal processor 230 may signal-process data included in the frame based on the extracted signaling information.

The signal processing unit 230 may signal-process the received frame by using values related to the protocol version of the frame obtained from the signaling processing unit 220, information on the type of the frame, and information on the method of inserting data. have. For example, signal processing may perform demodulation, frame de-builder, BICM decoding, and input de-processing.

In particular, the signal processing unit 230 extracts the PLP, performs FEC decoding, and is based on values related to the protocol version of the frame provided by the signaling processing unit 220, information on the type of the frame, and information on the data insertion method. By doing so, an L2 packet can be generated from an L1 packet that is error-corrected.

9 is a block diagram for specifically explaining a signal processing unit according to an embodiment of the present invention.

According to FIG. 9, the signal processing unit 230 includes a demodulator 231, a decoder 232 and a stream generator 233.

The demodulator 231 performs demodulation according to OFDM parameters from the received RF signal to perform sink detection and recognizes whether a mobile frame is being received or a fixed frame is received from information stored in the sink area when the sink is detected.

In this case, if the OFDM parameters for the signaling area and the data area have not been previously determined, the OFDM parameters for the signaling area and the data area stored in the sink area are obtained and the signaling area and the data area immediately following the sink area are obtained. Demodulation may be performed by obtaining OFDM parameter information.

The decoder 232 decodes the received data. In this case, the decoder 232 may perform decoding by acquiring parameters such as an FEC method and a modulation method for data stored in each data area using signaling information. In addition, the decoder 223 may calculate a start position of data based on data information included in configurable post signaling and dynamic post signaling. That is, it is possible to calculate where the corresponding PLP is transmitted in the frame.

The stream generator 233 may process BB frames received from the decoder 232 to generate data to be serviced.

The stream generator 233 extracts L2 packets from the error-corrected L1 packets based on values related to the protocol version of the frames provided by the signaling processing unit 220, information on the type of frames, and information on the data insertion method. Can be created.

Specifically, the stream generator 233 may include de-jitter buffers. The de-jitter buffers include information regarding a protocol version of a frame provided by the signaling processor 220, information regarding a type of frame, and a method of inserting data. The exact timing for restoring the output stream can be regenerated based on the value related to the information on the. Accordingly, a delay for sinking between a plurality of PLPs can be compensated.

On the other hand, the signaling information includes information on intervals between frames containing the same type of data among a plurality of frames, location of a frame including information on emergency information broadcasting among a plurality of frames, and information on emergency alert broadcasting. It may further include information about whether or not.

Similarly, the information performed by the signaling processing unit 220 and the signal processing unit 230 may be applied to the information on which the above-mentioned signaling information is information.

Meanwhile, the signaling information includes pre-signaling and post-signaling, and post-signaling includes configurable post-signaling and dynamic post-signaling. Includes.

In addition, as described above, pre-signaling is performed at intervals between frames containing information of a protocol type of a frame, information about a frame type, information about a data insertion method, and data of the same type among a plurality of frames. Containing information, the configurable post signaling includes information on the location of a frame including information on emergency alert broadcasting among a plurality of frames and whether information on emergency alert broadcasting is included, and dynamic post signaling Contains information about the number of insertions and the interval of insertion in the data insertion method.

10 is a block diagram showing the configuration of a signaling processing unit according to an embodiment of the present invention.

According to FIG. 9, the signaling processing unit 220 includes a demodulator 221, a mux 222, a deinterleaver 223, and a decoder 224.

The demodulator 221 receives and demodulates the signal transmitted by the transmission device 100. Specifically, the demodulator 221 demodulates the received signal to generate a value corresponding to the LDPC codeword and outputs it to the mux 222.

In this case, the value corresponding to the LDPC codeword can be expressed as a channel value for the received signal. Here, the method for determining the channel value may exist in various ways, for example, it may be a method for determining the LLR (Log Likelihood Ratio) value.

Here, the LLR value may be represented by a value obtained by taking a log of a ratio of a probability that a bit transmitted from the transmitting apparatus 100 is 0 and a probability of 1 day. Alternatively, the LLR value may be a bit value itself determined according to a hard decision, and the LLR value is a representative value determined according to a section where a probability that a bit transmitted from the transmitting device 100 is 0 or 1 belongs It could be

The mux 222 multiplexes the output value of the demodulator 221, and outputs it to the deinterleaver 223. Here, the output value of the demodulator 221 is a value corresponding to the LDPC codeword, and may be, for example, an LLR value.

Specifically, the mux 222 is a component corresponding to the demux (FIG. 3, 1240-2) provided in the transmission device 100, and performs the demultiplexing operation performed by the demux 1240-2 in reverse. can do. That is, the MUX 222 performs parallel-to-serial conversion on a value corresponding to the LDPC codeword output from the demodulator 221 to multiplex the value corresponding to the LDPC codeword.

The deinterleaver 223 deinterleaves the output value of the MUX 222 and outputs it to the decoder 224.

Specifically, the deinterleaver 223 is a component corresponding to the interleaver (FIGS. 3 and 1230-2) provided in the transmission device 100, and performs an operation performed in the interleaver (FIGS. 3 and 1230-2) in reverse. can do. That is, the deinterleaver 223 may deinterleave a value corresponding to the LDPC codeword to correspond to the interleaving operation performed by the interleaver (FIGS. 3 and 1230-2). Here, the value corresponding to the LDPC codeword may be, for example, an LLR value.

The decoder 224 is a component corresponding to the FEC encoder 1220-2 provided in the transmitting apparatus 100, and may perform an operation performed by the FEC encoder 1220-2 in reverse. Specifically, the decoder 224 may perform decoding based on the deinterleaved LLR value to output L1 signaling.

Meanwhile, a plurality of frames received by the reception unit 210 are received from the transmission device 100, where the transmission device 100 may be a DVB-T2 transmission system.

Also, the signaling area of the frame may be an area allocated to L1 signaling.

11A to 11D are diagrams for explaining a base band packet (BPP) according to an embodiment of the present invention.

11A is a diagram illustrating another embodiment of the input processor 1100. In FIG. 11A, the input processor 1100 includes a baseband packet (BBP) generator 1310 and a baseband frame (BBF) generator 1320. The BBP corresponds to the L2 packet in the above-described embodiment, and the BBF corresponds to the L1 packet in the above-described embodiment. The BBP generator 1310 generates a BBP by using TS, IP, or other types of streams as input. At this time, the TS stream may not be converted into the BBP format and may be output in its original form. Note that the TS packet constituting the TS stream corresponds to the L2 packet in the above-described embodiment. The BBF generator 1320 generates BBF by using the BBPs as input.

11B is a diagram showing a relationship between the BBP 1310 and the BBF 1320. In FIG. 11B, the BBP Payload of the BBP 1310 is a packet constituting a TS, IP, or other stream. It is also noted that the BBF 1320 may include a plurality of complete BBPs or portions thereof.

11C is a diagram illustrating an example of the format of the BBP 1310 when the input stream of the corresponding PLP is a TS stream.

FIG. 11D shows an example of a format of a BBP 1310 composed of TS packets constituting the TS stream when the input stream of the corresponding PLP includes a TS stream and an IP or other type of stream in addition to the TS stream. It is a drawing.

In FIGS. 11C and 11D, an ISSY field is included in the extension / variable header of the BBP, and in the ISSY field, a counter value at the moment when the first TS packet included in the BBP 1310 is input to the BBP generator 1310 An ISCR value representing can be transmitted. The counter is a counter that operates at a period known to the transmitter and receiver. The ISSY field may be included only in the first BBP 1310 starting from the BBF 1320 among one or more BBPs 1310 constituting the BBF 1320.

12 is a flowchart illustrating a control method of a transmitting apparatus according to an embodiment of the present invention.

According to the control method of the transmitting apparatus illustrated in FIG. 12, first, a plurality of frames including data to be transmitted is generated (S1210).

Subsequently, signaling information is inserted into each signaling area of the plurality of frames (S1220). Here, the signaling information may include at least one of information on a protocol version of a plurality of frames, information on a type of a frame, and information on a data insertion method.

In addition, the signaling information includes information about the interval between frames containing the same type of data among the plurality of frames, the position of the frame including the information about the emergency alert broadcast among the plurality of frames, and information about the emergency alert broadcast. It may further include information about whether it is included.

Meanwhile, the signaling information includes pre-signaling and post-signaling, and the post-signaling may include configurable post-signaling and dynamic post-signaling.

Specifically, the pre-signaling includes information on the protocol version of the frame, information on the type of the frame, information on the data insertion method, and information on the interval between frames containing the same type of data among the plurality of frames. , Configurable post signaling includes information on the location of a frame including information on emergency alert broadcast among a plurality of frames and whether information on emergency alert broadcast is included, and dynamic post signaling is based on the insertion method of data. This includes information on the number of insertions and the spacing of the insertions.

Thereafter, a plurality of frames in which signaling information is inserted is transmitted (S1230).

Meanwhile, the above-described transmission device 100 is implemented with a DVB-T2 transmission system, and the signaling area of the frame may be an area allocated to L1 signaling.

13 is a flowchart illustrating a method of controlling a receiving device according to an embodiment of the present invention.

According to the control method of the reception device shown in FIG. 13, a plurality of frames including signaling information and data is received (S1310).

Subsequently, signaling information is extracted from the received frame (S1320). Here, the signaling information may include at least one of information on a protocol version of a plurality of frames, information on a type of a frame, and information on a data insertion method.

In addition, the signaling information includes information about the interval between frames containing the same type of data among the plurality of frames, the position of the frame including the information about the emergency alert broadcast among the plurality of frames, and information about the emergency alert broadcast. It may further include information about whether it is included.

Meanwhile, the signaling information includes pre-signaling and post-signaling, and the post-signaling may include configurable post-signaling and dynamic post-signaling.

Specifically, the pre-signaling includes information on the protocol version of the frame, information on the type of the frame, information on the data insertion method, and information on the interval between frames containing the same type of data among the plurality of frames. , Configurable post signaling includes information on the location of a frame including information on emergency alert broadcast among a plurality of frames and whether information on emergency alert broadcast is included, and dynamic post signaling is based on the insertion method of data. This includes information on the number of insertions and the spacing of the insertions.

Thereafter, the information regarding the protocol version of the plurality of frames included in the above-described signaling information, the information on the type of the frame, the information on the data insertion method, and the interval between frames containing the same type of data among the plurality of frames. The data may be signaled based on information on the location of a frame including information on emergency alert broadcasting among information on a plurality of frames and whether information on emergency alert broadcasting is included (S1330).

Meanwhile, a plurality of frames received by the reception device 200 are transmitted to the DVB-T2 transmission system, and the signaling area of the frame may be an area for transmitting L1 signaling.

As described above, according to various embodiments of the present invention, by reconstructing information included in the signaling area, information included in the signaling area increases, and thus data can be variously processed.

Meanwhile, a non-transitory computer readable medium in which a program for sequentially performing a control method according to the present invention is stored may be provided.

For example, a non-transitory computer readable medium storing a program for generating a plurality of frames including data to be transmitted and inserting signaling information in each signaling area of the plurality of frames is stored. Can be provided.

In addition, as an example, a non-transitory readable medium storing a program for extracting signaling information from a cynodine frame and processing data included in a frame based on the extracted signaling information (non-transitory computer) readable medium).

A non-transitory readable medium means a medium that stores data semi-permanently and that can be read by a device, rather than a medium that stores data for a short time, such as registers, caches, and memory. Specifically, the various applications or programs described above may be stored and provided in a non-transitory readable medium such as a CD, DVD, hard disk, Blu-ray disk, USB, memory card, ROM, and the like.

In addition, although the bus is not illustrated in the above-described block diagram showing the transmitting device and the receiving device, communication between each component in the transmitting device and the receiving device may be performed through the bus. Further, each device may further include a processor, such as a CPU or a microprocessor, which performs the various steps described above.

In addition, although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments described above, and the technical field to which the present invention belongs without departing from the gist of the present invention claimed in the claims. In addition, various modifications can be implemented by those having ordinary knowledge in the course, and these modifications should not be individually understood from the technical idea or prospect of the present invention.

100: transmitting device 110: frame generation unit
120: information inserting unit 130: transmitting unit
200: receiving device 210: receiving unit
220: signaling processing unit 230: signal processing unit

Claims (20)

In the transmitting device,
A frame generation unit generating a plurality of frames including data to be transmitted;
An information inserting unit for inserting signaling information into the signaling area of each of the plurality of frames; And
Includes; a transmitter for transmitting a plurality of frames in which the signaling information is inserted;
The signaling information,
It includes at least one of information on the protocol version of the plurality of frames, information on the type of the frame, and information on the insertion method of the data,
The signaling information,
Information on the interval between frames containing the same type of data among the plurality of frames, the position of the frame including the information on the emergency alert broadcast among the plurality of frames, and whether the information on the emergency alert broadcast is included A transmission device further comprising information about. delete According to claim 1,
The signaling information,
Includes pre-signaling and post-signaling,
The post signaling (post signaling),
A transmitting device comprising configurable post signaling and dynamic post signaling. According to claim 3,
The pre-signaling,
Information on the protocol version of the frame, information on the type of the frame, information on the insertion method of the data, and information on the interval between frames containing the same type of data among the plurality of frames,
The configurable post signaling,
Among the plurality of frames, including information about the location of the frame containing the information on the emergency alert broadcast and whether to include the information on the emergency alert broadcast,
The dynamic post signaling,
A transmission device comprising information on the number of insertions and the interval of insertion in the data insertion method. According to claim 1,
The transmission device is implemented as a DVB-T2 transmission system,
The transmitting device, characterized in that the signaling area of the frame is an area allocated to L1 signaling. A receiver configured to receive a plurality of frames including signaling information and data;
A signaling processor that extracts the signaling information from the received frame; And
It includes; a signal processing unit for processing the data included in the frame based on the extracted signaling information;
The signaling information,
It includes at least one of information on the protocol version of the frame, information on the type of the frame, and information on the insertion method of the data,
Information on the interval between frames containing the same type of data among the plurality of frames, the position of the frame including the information on the emergency alert broadcast among the plurality of frames, and whether the information on the emergency alert broadcast is included Further comprising information about, the receiving device. delete The method of claim 6,
The signaling information,
Includes pre-signaling and post-signaling,
The post signaling (post signaling),
A receiving device characterized in that it comprises configurable post signaling (configurable post signaling) and dynamic post signaling (dynamic post signaling). The method of claim 8,
The pre-signaling,
Information on the protocol version of the frame, information on the type of the frame, information on the insertion method of the data, and information on the interval between frames containing the same type of data among the plurality of frames,
The configurable post signaling,
Among the plurality of frames, including information about the location of the frame containing the information on the emergency alert broadcast and whether to include the information on the emergency alert broadcast,
The dynamic post signaling,
A receiving device comprising information on the number of insertions and the interval of insertion in the data insertion method. The method of claim 6,
The plurality of frames are transmitted from a DVB-T2 transmission system,
The signaling device of the frame is an area allocated to L1 signaling. In the control method of the transmitting device,
Generating a plurality of frames including data to be transmitted;
Inserting signaling information in each of the plurality of frames in the signaling area; And
And transmitting a plurality of frames in which the signaling information is inserted.
The signaling information,
It includes at least one of information on the protocol version of the plurality of frames, information on the type of the frame, and information on the insertion method of the data,
The signaling information,
Information on the interval between frames containing the same type of data among the plurality of frames, the position of the frame including the information on the emergency alert broadcast among the plurality of frames, and whether the information on the emergency alert broadcast is included A control method of a transmitting device further comprising information about. delete The method of claim 11,
The signaling information,
Includes pre-signaling and post-signaling,
The post signaling (post signaling),
Control method of a transmitting device, characterized in that it comprises a configurable post signaling (configurable post signaling) and dynamic post signaling (dynamic post signaling). The method of claim 13,
The pre-signaling,
Information about the protocol version of the frame, information about the type of the frame, information about the insertion method of the data, and information about the interval between frames containing the same type of data among the plurality of frames,
The configurable post signaling,
Among the plurality of frames, including information about the location of the frame containing the information on the emergency alert broadcast and whether to include the information on the emergency alert broadcast,
The dynamic post signaling,
A method of controlling a transmitting apparatus, comprising information on the number of insertions and the interval of insertion in the data insertion method. The method of claim 11,
The transmission device is implemented as a DVB-T2 transmission system,
The signaling area of the frame is an area allocated to L1 signaling. Receiving a plurality of frames including signaling information and data;
Extracting the signaling information from the received frame; And
And processing the data included in the frame based on the extracted signaling information.
The signaling information,
It includes at least one of information on the protocol version of the frame, information on the type of the frame, and information on the insertion method of the data,
Information on the interval between frames containing the same type of data among the plurality of frames, the position of the frame including the information on the emergency alert broadcast among the plurality of frames, and whether the information on the emergency alert broadcast is included A control method comprising information about. delete The method of claim 16,
The signaling information,
Includes pre-signaling and post-signaling,
The post signaling (post signaling),
Control method of a receiving device, characterized in that it comprises a configurable post signaling (configurable post signaling) and dynamic post signaling (dynamic post signaling). The method of claim 18,
The pre-signaling,
Information on the protocol version of the frame, information on the type of the frame, information on the insertion method of the data, and information on the interval between frames containing the same type of data among the plurality of frames,
The configurable post signaling,
Among the plurality of frames, including information about the location of the frame containing the information on the emergency alert broadcast and whether to include the information on the emergency alert broadcast,
The dynamic post signaling,
In the method of inserting the data, the control method of the receiving device, characterized in that it includes information about the number of inserts and the interval. The method of claim 16,
The plurality of frames are transmitted from a DVB-T2 transmission system,
The signaling area of the frame is an area for transmitting L1 signaling.

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