JP2018006796A - Transmission device and reception device of single carrier system, transmission method, reception method, and transmission frame constitution method - Google Patents

Abstract

A single frame that can be transmitted by configuring one superframe so that the number of TS packets and the number of data frames is an integer in a mode that provides maximum transmission efficiency, and channel equalization in the frequency domain. Provided are a carrier transmission device and a reception device, and a transmission method, a reception method, and a transmission frame configuration method. When a TS device and a receiving device 200 of the present invention wirelessly transmit TS packets using the SC-FDE scheme, a predetermined number of SC-FDE frames constitute one superframe, and a predetermined number of TS packets. Is assigned to each SC-FDE block in one superframe, and the number of data frames per superframe is set to an integer number, and varies according to predetermined transmission parameters. The maximum transmission efficiency is assigned to the amount of signal transmission to be performed. [Selection] Figure 1

Description

  The present invention relates to a transmission device and a reception device that can be used in a wireless transmission system such as broadcasting or communication, and in particular, a single-carrier transmission device and reception device capable of channel equalization in the frequency domain, and a transmission method, The present invention relates to a reception method and a transmission frame configuration method.

  Conventionally, in a fixed transmission wireless transmission system such as broadcasting and communication, a single carrier method using one carrier wave is widely used. In recent years, a single carrier-frequency domain equalization (SC-FDE) method has been proposed that performs channel equalization in the frequency domain (processing that restores changes in amplitude and phase generated in a propagation path) in the frequency domain. (For example, refer nonpatent literature 1 and patent literature 1).

  Since the SC-FDE scheme can perform channel estimation and channel equalization in units of blocks, it can follow high-speed channel fluctuations during mobile transmission, as in the OFDM scheme that similarly performs channel equalization in the frequency domain. it can. Further, similarly to the OFDM system, a guard interval (GI) using a cyclic prefix (CP) can be provided to prevent inter-block interference in a multipath environment.

  In the SC-FDE method, block synchronization for detecting the head of a block is performed, a unique word (UW, Unique Word) and data for channel estimation are extracted, and UW and data are converted into a frequency domain by fast Fourier transform (FFT). Conversion is performed to perform channel estimation and channel equalization processing. Thereafter, the data is returned to a time domain signal by fast inverse Fourier transform (IFFT), and processing such as symbol determination is performed.

Since the SC-FDE system performs FFT and IFFT, it is desirable that the equalization target in one block and the number of UW symbols are powers of two. Further, since UW also serves as a CP and GI ratio = number of UW symbols / number of FFT points to be equalized in one block (= number of symbols), the number of FFT points to be equalized in one block ^Is 2 ^NFFT (N _FFT is a positive integer), the number of symbols in the payload portion made up of a transmission control signal (TMCC signal) and data is a ratio of 2 ^NFFT −2 ^NFFT × GI. The GI ratio is selected to be a power of 2 that does not exceed ^2NFFT so that the number of UW symbols is a power of 2.

  In addition, a transmission system for constructing a data frame, which is one processing unit of transmission path coding, from a signal of a predetermined information source, identifying a head of the data frame and performing data frame synchronization, is used for transmitting television program material. Wireless transmission systems are known (see, for example, Non-Patent Document 2 and Non-Patent Document 3).

  In such a radio transmission system for transmitting television program material, the outer code is a Reed-Solomon (204, 188) code, and a TS (204 byte format TS to which a 16-byte dummy input from a predetermined information source is added. Transport Stream) packets are used as data packets, and 8 TS packets are formed as data frames, and data frame synchronization is performed by inverting (B8h) the synchronization byte (47h) of the leading packet of the 8TS packets. Here, h in 47h and B8h indicates a hexadecimal number (represented as “0x47” and “0xB8”, respectively).

  For data transmission, after data frame synchronization, energy spreading, outer code encoding (Reed-Solomon encoding), outer interleaving (byte interleaving), inner code encoding (convolutional encoding), inner interleaving (bit interleaving, And time interleaving), mapping, UW addition, TMCC addition, GI (UW) addition, and the like are performed to generate an SC-FDE signal block. Among these, the Reed-Solomon encoding processing unit, which is an outer code, performs Reed-Solomon (204, 188) encoding on 188 bytes from which the 16-byte dummy portion added to each data packet has been removed. It outputs 204 bytes with byte parity added.

  Further, in the OFDM (Orthogonal Frequency Division Multiplexing) method used in the transmission systems disclosed in Non-Patent Document 2 and Non-Patent Document 3, there is an OFDM frame in addition to a data frame. An OFDM frame is a collection of OFDM symbols in a certain unit, and 204 symbols or 408 symbols correspond to one frame. Further, one superframe is composed of eight frames, and parameters such as the number of subcarriers are set so that the number of TS packets and the number of data frames transmitted in one superframe become integers. By doing so, there is an advantage that TS packet and data frame can be synchronized from super frame synchronization.

Japanese Patent No. 5624527

D. Falconer, et al. , “Frequency domain equalization for single-carrier broadband wireless systems,” IEEE Commun. mag. , Vol. 40, pp. 58-66, April 2002. "Portable OFDM digital wireless transmission system for transmitting television broadcast program material", standard ARIB STD-B33 1.2 version, http://www.arib.or.jp/english/html/overview/doc/2-STD -B33v1_2.pdf “Portable Millimeter-Wave Digital Radio Transmission System for Television Broadcast Program Material Transmission”, Standard ARIB STD-B43 Version 1.0, http://www.arib.or.jp/english/html/overview/doc/2- STD-B43v1_0.pdf

  As described above, by constructing an SC-FDE wireless transmission system that performs channel equalization in the frequency domain, followability to high-speed channel fluctuation during mobile transmission is improved. Then, the SC-FDE transmission device configures and transmits 8 TS packets as a data frame, and the SC-FDE reception device inverts the synchronization byte (47h) of the top packet of the 8TS packets. (B8h) to perform data frame synchronization. Therefore, capturing the synchronization in units of data frames without capturing the synchronization for each individual TS packet can reduce the processing burden on the receiving side and improve the processing efficiency.

  On the other hand, the OFDM transmission systems disclosed in Non-Patent Document 2 and Non-Patent Document 3 are configured to be able to synchronize TS packets and data frames from the synchronization of one superframe, thereby further improving the processing efficiency. Is excellent.

  Therefore, even in the SC-FDE wireless transmission system, a transmission frame having a size larger than that of the TS packet or data frame can be formed, and the synchronization of the TS packet or data frame can be performed from the synchronization of the one transmission frame. As a result, the processing efficiency can be further improved.

  However, in the SC-FDE wireless transmission system, there is an SC-FDE block as a waveform equalization processing unit separately from the data frame. Therefore, it is conceivable that the SC-FDE blocks are grouped in a certain unit as an SC-FDE frame, and one SC is composed of a plurality of SC-FDE frames. In the present specification, this “transmission frame” is referred to as “superframe” from the viewpoint of frame synchronization, but it should be noted that the role of “superframe” as a processing unit of the OFDM system is not completely synonymous. To do.

  At this time, in the SC-FDE wireless transmission system, a plurality of SC-FDE frames constitute one transmission frame (one super frame), and TS packets and data frames are transmitted from the viewpoint of frame synchronization. Similar to the OFDM scheme, it is desirable that the number of TS packets transmitted in one superframe and the number of data frames be integers, as in the OFDM scheme.

However, in the SC-FDE wireless transmission system, encoding processing or the like is performed in units of data frames. Therefore, the number of symbols in the payload portion in one SC-FDE block ( ^2NFFT - ^2NFFT × GI ratio) However, depending on the number of modulation levels and the coding rate of the inner code, there may be a combination of TS packets per superframe and the number of data frames allocated as a non-integer multiple. There is an inconvenience of getting out.

  Therefore, in a single-carrier transmission and reception device that enables channel equalization in the frequency domain, transmission for a signal transmission amount that fluctuates according to predetermined transmission parameters (here, FFT size, GI ratio, and encoding processing). A transmission technique with an excellent balance between efficiency and processing efficiency on the receiving side is desired.

  In view of the above-described problems, an object of the present invention is such that the number of TS packets and the number of data frames are integers in such a manner that the maximum transmission efficiency is achieved with respect to a signal transmission amount that varies with a predetermined transmission parameter. It is an object of the present invention to provide a single-carrier transmission device and reception device, a transmission method, a reception method, and a transmission frame configuration method that can configure and transmit a superframe and can perform channel equalization in the frequency domain.

  The transmission apparatus of the present invention is a single carrier transmission apparatus that enables channel equalization in the frequency domain, and transmits TS packets by single carrier wireless transmission that enables channel equalization in the frequency domain. In this case, one superframe is composed of a predetermined number of single carrier SC-FDE frames, the SC-FDE frame is composed of a predetermined number of SC-FDE blocks, and is composed of a predetermined number of TS packets. When assigning data symbols of a data frame to each of the SC-FDE blocks in one superframe, the number of the data frames per superframe is an integer number, and the signal varies with a predetermined transmission parameter. By assigning the maximum transmission efficiency to the transmission amount, A transmission frame configuration means for configuring a transmission frame based on the superframe, characterized in that it comprises a transmitting means for transmitting a radio frequency signal that is configured to transmit the TS packets using the superframe.

  In the transmission apparatus of the present invention, the transmission frame configuration means includes SC-FDE block configuration means that configures the SC-FDE block, and the SC-FDE block configuration means includes the SC-FDE block that configures the SC-FDE block. The SC- symbol that constitutes the symbol of the TMCC signal including at least the modulation scheme of the data part, the coding rate of the inner code, the block number of the SC-FDE block, and the frame number of the superframe to which the SC-FDE block is assigned. TMCC insertion means for inserting the data block before the data portion of the FDE block is provided.

  Further, in the transmission apparatus of the present invention, the SC-FDE block configuration means provides a stuffing area before the symbol insertion position of the TMCC signal in the configured SC-FDE block so that the data symbols can be allocated. It further comprises stuffing means for adjusting the setting including setting the number of symbols in the stuffing area to be zero so as to be maximized.

  In the transmitting apparatus of the present invention, the SC-FDE block constituting means further comprises unique word inserting means for inserting the same unique word with a predetermined number of symbols at the beginning and end of the constituting SC-FDE block, The stuffing area is configured to be positioned between the leading unique word and the symbol of the TMCC signal.

  Furthermore, the receiving apparatus of the present invention is a single carrier type receiving apparatus that enables channel equalization in the frequency domain, and transmits the TS packet using the superframe from the transmitting apparatus of the present invention. Receiving means configured to receive a configured radio frequency signal; and transmission frame synchronization means configured to synchronize a data frame composed of the predetermined number of TS packets by establishing synchronization of the superframe. .

  Furthermore, the transmission method of the present invention is a single carrier transmission method that enables channel equalization in the frequency domain, and is a single carrier wireless transmission that enables channel equalization in the frequency domain of TS packets. When transmitting, the super-frame is composed of a predetermined number of single-carrier SC-FDE frames, the SC-FDE frame is composed of a predetermined number of SC-FDE blocks, and is composed of a predetermined number of TS packets. When the data symbols of the data frame to be assigned are assigned to each of the SC-FDE blocks in the one superframe, the number of the data frames per superframe is set to an integer number, and varies depending on a predetermined transmission parameter. By assigning the maximum transmission efficiency to the signal transmission amount to be A step of configuring a transmission frame based on the serial superframe, characterized in that it comprises the steps of: transmitting a radio frequency signal that is configured to transmit the TS packets using the superframe.

  Furthermore, the reception method of the present invention is a single carrier reception method that enables channel equalization in the frequency domain, and the TS packet is transmitted using the superframe transmitted by the transmission method of the present invention. Receiving a radio frequency signal configured to transmit, and synchronizing a data frame composed of the predetermined number of TS packets by establishing synchronization of the superframe.

  Furthermore, the transmission frame configuration method of the present invention is a transmission frame configuration method that can be used for single-carrier wireless transmission that enables channel equalization in the frequency domain. As a transmission frame for wireless transmission using a single carrier scheme that enables the transmission, a single superframe is composed of a predetermined number of single carrier SC-FDE frames, and the SC-FDE block includes a predetermined number of SC-FDE blocks. When assigning data symbols of a data frame comprising a predetermined number of TS packets to each of the SC-FDE blocks in the one superframe, the number of the data frames per one superframe is determined. An integer number and a signal that fluctuates according to predetermined transmission parameters Configuring a transmission frame based on the superframe by allocating a maximum transmission efficiency to a transmission amount, and determining a number of symbols of the data symbols so as to be a maximum allocation for each SC-FDE block; , Including.

  According to the present invention, in a single carrier wireless transmission system that enables channel equalization in the frequency domain, the number of TS packets and the number of data frames are integers, and transmission parameters (here, FFT) are used. Since one superframe is configured so that the maximum transmission efficiency can be achieved with respect to the signal transmission amount that varies depending on the size, the GI ratio, and the encoding processing), transmission with an excellent balance between the transmission efficiency and the processing efficiency on the reception side becomes possible. . For example, when the outer code is a Reed-Solomon (204, 188) code, the number of data symbols in the SC-FDE block can be appropriately selected and inserted. For this reason, it is possible to synchronize TS packets and data frames from the synchronization of one superframe, thereby reducing the processing load on the receiving side and improving the processing efficiency.

  Further, since a control signal (TMCC signal) is inserted into the 1SC-FDE block, the relative arrangement relationship of the 1SC-FDE block can be immediately grasped.

  In addition, by providing a stuffing area in a payload portion within a 1SC-FDE block in a manner with good transmission efficiency, a well-balanced transmission frame (superframe) can be configured from the viewpoint of synchronization acquisition and transmission efficiency.

  Also, by providing the stuffing area (area where a NULL value is inserted) between the UW located at the head (previous stage) of the 1SC-FDE block and the inserted control signal (TMCC signal), the UW of the previous stage is provided. The effect of the previous ghost on the transmission error can be reduced, and the resistance to transmission errors is improved.

It is a block diagram which shows schematic structure of the transmitter in the single carrier type radio | wireless transmission system of one Embodiment by this invention. It is a figure which shows the relationship between the super-frame in the radio transmission system of the single carrier system of one Embodiment by this invention, and a TS packet and a data frame. It is a figure which shows the structure of the SC-FDE block in the radio transmission system of the single carrier system of one Embodiment by this invention. It is a figure which shows the structure of the control signal (TMCC signal) in the radio transmission system of the single carrier system of one Embodiment by this invention. It is a flowchart which shows the structure process of the super frame in the single carrier system radio | wireless transmission system of one Embodiment by this invention. It is a flowchart which shows the allocation process of TS packet regarding the structure process of the super frame in the single carrier system radio | wireless transmission system of one Embodiment by this invention. It is a figure which shows the relationship between the super-frame in the radio transmission system of the single carrier system of one Embodiment by this invention, and an SC-FDE block, an SC-FDE frame, a TS packet, and a data frame. (A), (b), (c) is a figure which shows the typical setting example regarding the super-frame in the radio transmission system of the single carrier system of one Embodiment by this invention, respectively. It is a block diagram which shows schematic structure of the receiver in the single carrier type radio | wireless transmission system of one Embodiment by this invention.

  Hereinafter, a transmission apparatus and a reception apparatus and a transmission frame configuration method in a single carrier wireless transmission system according to an embodiment of the present invention will be described with reference to the drawings. The transmission method and the reception method according to the present invention will become clear from the description of the transmission device and the reception device, respectively.

(Transmitter)
FIG. 1 is a block diagram illustrating a schematic configuration of a transmission apparatus 100 in a single carrier wireless transmission system according to an embodiment of the present invention.

  Transmitting apparatus 100 includes DVB-ASI input interface unit 101, frame synchronization unit 102, energy spreading unit 103, Reed-Solomon (RS) encoding unit 104, byte interleaving unit 105, convolutional encoding unit 106, delay correction unit 107, Bit interleaving section 108, time interleaving section 109, mapping section 110, transmission frame configuration section 111, SC-FDE block configuration section 111a, stuffing section 112, TMCC insertion section 113, unique word (UW) insertion section 114, waveform shaping section 115 , A digital quadrature modulation unit 116, a DA conversion unit 117, a frequency conversion unit 118, a power amplification unit 119, and a transmission antenna 120.

In this embodiment, the number of FFT points 2 ^NFFT = 2048, the GI ratio 1/8, the number of TMCC signal symbols N _TMCC = 32, the number of SC-FDE blocks in an SC-FDE frame N _B = 816, and one superframe SC-FDE frame number N _F = 8, inner code coding rate R is 1/2, 2/3, 3/4, 5/6, (1: inner code is not encoded), specific modulation scheme ( Although an example in which the modulation multilevel number 2 ^M ) is described will be described, these parameters can be set and changed in advance in configuring the wireless transmission system.

  Then, the relationship among the transmission frame (super frame), SC-FDE frame, SC-FDE block, data frame, and TS packet determined by the above parameters is as shown in FIG.

  An example of DVB-ASI (Digital Video Broadcasting-Asynchronous Serial Interface) generally used in a radio transmission system for transmitting television program materials is used as an interface for a predetermined TS packet transmitted in the single carrier radio transmission system of the present embodiment. explain.

  The DVB-ASI input interface unit 101 inputs a DVB-ASI format signal, extracts a 204-byte TS signal, divides it into TS packet units, and outputs it to the frame synchronization unit 102. The DVB-ASI input interface unit 101 inserts a NULL packet when the TS rate is smaller than the transmission capacity.

  The frame synchronization unit 102 frames the input TS packet in units of 8 packets to form a data frame, and replaces the first byte of the data frame with B8h obtained by inverting the TS synchronization byte (47h), so that the energy spreading unit 103 Output to. Here, as shown in FIG. 2, 8 packets of TS packets are allocated to one data frame.

In the example of the present embodiment, as shown in FIG. 2, the number of SC-FDE frames N _F = 8 in one superframe (“SC-FDE superframe” shown in the figure) is 8, so that the SC− for 8 frames. One super frame is composed of FDE frames. At this time, by appropriately constructing a transmission frame (super frame) according to the above parameters, an integer number of data frames are accommodated in the super frame, and the head of the super frame and the head of the data frame coincide. For this reason, the head of one superframe is always the TS synchronization byte B8h. However, allocation of data within one superframe is performed by a transmission frame configuration unit 111 described later. Therefore, in the frame synchronization unit 102, one data frame is simply composed of 8 packets of TS packets, and the head byte of the data frame is replaced with B8h obtained by inverting the TS synchronization byte (47h) to the energy diffusion unit 103. Output.

  The energy spreading unit 103 performs energy spreading on the 187-byte TS data excluding the TS synchronization byte (B8h, 47h) and the 16-byte dummy portion of the 204-byte TS packets allocated to the data frame. Are added to a Reed-Solomon (RS) encoder 104. The pseudo random coefficient generation circuit for adding the pseudo random sequence is initialized immediately after the replacement of the TS synchronization byte located at the head of the data frame with B8h is completed.

  The Reed-Solomon (RS) encoding unit 104 performs encoding using a shortened Reed-Solomon (204, 188) code as an outer code for error correction, and outputs the result to the byte interleaving unit 105.

  The shortened Reed-Solomon (204,188) code adds 51 bytes of 00h before 188 bytes of the Reed-Solomon (255,239) encoder input data, 204 bytes, excluding the 16 bytes of the dummy part. The first 51 bytes are removed after encoding. Here, the Reed-Solomon (RS) encoding unit 104 replaces the 16 bytes of the dummy part with the 16 bytes of the parity of the Reed-Solomon (204, 188) code (see FIG. 2).

In this way, by using a shortened Reed-Solomon (204,188) code as an outer code for error correction, a code is obtained for the number of symbols in the payload portion ( ^2NFFT - ^2NFFT × GI ratio) in one SC-FDE block. Even if an attempt is made to insert the data frame after the conversion processing as it is, depending on the number of modulation multi-values and the coding rate of the inner code, a combination of TS packets per superframe and the number of data frames allocated as a non-integer multiple However, the number of data symbols in the SC-FDE block can be appropriately selected and inserted. Details regarding this data allocation will be described later.

  The byte interleaving unit 105 arranges 12 blocks each having a delay amount of 17 bytes as block processing related to the byte interleaving processing so that the nth path has a delay amount of (n−1) blocks. The convolutional interleaving is performed by sequentially supplying a 204-byte bit stream after Reed-Solomon encoding to the pass by one byte per pass, and the result is output to the convolutional coding unit 106. Here, the synchronization byte of the TS packet and the synchronization byte of the data frame always pass through a path without delay. Also, the head of the superframe after passing through the byte interleave is at a position delayed by 11 packets.

  The convolutional coding unit 106 performs convolutional coding on the signal input from the byte interleaving unit 105 as an inner code for error correction, and outputs the result to the delay correction unit 107. When error correction is not required in transmission performance with only the Reed-Solomon code of the outer code (coding rate R = 1: no encoding of the inner code), the input signal is output as it is. Further, when R = 2/3, 3/4, 5/6, etc., other than the coding rate R = 1/2 of the convolutional code, the convolutional coding unit 106 performs puncture processing. In the example of this embodiment, a Reed-Solomon (204, 188) code is used for the outer code and a concatenated code of the convolutional code is used for the inner code, but a code other than the convolutional code may be used for the inner code. Is possible.

  The delay correction unit 107 delays one block between transmission and reception as a block process related to the bit interleaving process with respect to the delay amount generated in the bit interleaving unit 108 in the subsequent stage and the bit deinterleaving unit 216 of the receiving apparatus 200 described later. Then, delay correction according to the data symbol modulation method is added and output to the bit interleaving section 108. As a result, the head of the superframe to be transmitted (data frame having the TS synchronization byte B8h) is delayed by one block as a block process related to the bit interleave process after the process of the bit interleave unit 108.

For example, if convolutional bit interleaving with a maximum delay amount of 120 bits is performed, a delay of 120 symbols occurs between transmission and reception, and therefore when a modulation method of data symbols with a modulation multi-level number of 2 ⁴ = 16 is applied From the number of data symbols N _DATA = 1752, the delay correction amount is (1752-120) × 4 = 6528 bits. The delay amount of the super frame (data frame having the TS synchronization byte B8h) at this time is 1752 × 4 = 7008 bits.

  The bit interleaving unit 108 performs serial / parallel conversion according to the multi-level number of the modulation scheme of the data symbol unit, performs interleaving in units of bits using convolutional interleaving configured to insert a delay in each bit, and performs time interleaving. Output to the unit 109.

  Time interleaving section 109 uses convolutional interleaving to distribute symbols on the time axis (between blocks) and outputs the result to mapping section 110. The head of the superframe after the time interleaving (data frame having the TS synchronization byte B8h) is the head of the block containing the most delayed data as the block processing related to the time interleaving processing.

  The mapping unit 110 performs BPSK (Binary Phase Shift Keying), QPSK (Quadrature Phase Shift Keying), 8PSK (8-Phase Shift Keying), and 16 APSK (16-Amplitude Phase Shift Keying) on the signal subjected to the time interleaving process. ), 32 APSK (32-Amplitude Phase Shift Keying), and 64 APSK (64-Amplitude Phase Shift Keying), etc., are mapped to symbol points. Here, in addition to APSK, 16QAM (16-Quadrature Amplitude Modulation), 32QAM (32-Quadrature Amplitude Modulation), and 64QAM (64-Quadrature Amplitude Modulation) modulation schemes may be applied.

The transmission frame configuration unit 111 sets the number of TS packets and data frames per transmission frame (superframe) to an integer number while the SC-FDE block configuration unit 111a functions after mapping by the mapping unit 110, and A transmission frame (superframe) is constituted by the number N _DATA of symbols in the data portion in the SC-FDE block determined so that the transmission efficiency is highest in the minimum stuffing area. The method for configuring this transmission frame will be described in detail later.

All the parameters for configuring this superframe (FFT point number 2 ^NFFT , GI ratio, TMCC signal symbol number N _TMCC , SC-FDE block number N _B in SC-FDE frame, SC- The number of FDE frames N _F , the coding rate R of the inner code, and the modulation method (modulation multilevel number 2 ^M ) are determined in advance when the wireless transmission system of this embodiment is used.

  The SC-FDE block configuration unit 111a includes a stuffing unit 112, a TMCC insertion unit 113, and a unique word (UW) insertion unit 114. The processing order of these functional units is not limited to this example, and may be arbitrarily combined. .

As shown in FIG. 3, SC-FDE block configuration section 111a secures an S symbol stuffing area in one SC-FDE block by stuffing section 112, and TMCC insertion section 113 _generates a TMCC signal of the number of symbols N _TMCC . A symbol (TMCC symbol) is assigned, and a unique word (UW) insertion unit 114 assigns UWs before and after (the beginning and the end) of the 1SC-FDE block.

The TMCC insertion unit 113 transmits a TMCC signal including at least a modulation scheme of the data (DATA) portion of 1SC-FDE block, a coding rate R of the inner code, a block number of the SC-FDE block, and a frame number of the superframe to BPSK. For example, N _TMCC = 32 TMCC symbols mapped by, for example, are inserted immediately after the S symbol stuffing area. Note that the number of TMCC signals N _TMCC need not be limited to 32 symbols, and each information included in the TMCC signal need not be limited to only the information of this example. FIG. 4 illustrates a 32-bit TMCC signal.

  The unique word (UW) insertion unit 114 uses a Frank-Zadoff code, a Chu code, or the like as the UW, and inserts 256 symbols before and after (the beginning and the end) of the 1SC-FDE block.

The number of symbols in the 1SC-FDE block is determined as “ ^2NFFT + ^2NFFT × GI ratio”, and the number of UW symbols assigned before and after (the head and the end) of the 1SC-FDE block is also determined as “ ^2NFFT × GI ratio”. It is done. Accordingly, the number of symbols in the payload portion of the 1SC-FDE block is also defined as “ ^2NFFT - ^2NFFT × GI ratio”.

In this way, since the stuffing area of S symbols is secured at the head of the payload part, and subsequently the number of symbols N _TMCC is allocated, the data (DATA) part has the number of symbols N _{DATA that} can be adjusted by the stuffing area of S symbols = _DATA = a ^{_{"2 NFFT -S-N TMCC -2}} NFFT × GI ratio". That is, the number of symbols N _DATA in the data portion is a value obtained by subtracting the number of symbols N _TMCC of the TMCC signal from the number of symbols in the payload portion ( ^2NFFT - ^2NFFT × GI ratio), which is ^2NFFT− 2 ^NFFT × GI ratio−N This is a range not ^exceeding _TMCC .

  Referring to FIG. 1, the SC-FDE block configured through the transmission frame configuration unit 111 is output to the waveform shaping unit 115.

  The waveform shaping unit 115 performs double upsampling and band limiting filter processing, and outputs the result to the digital quadrature modulation unit 116. As the band limiting filter, a route roll-off filter is usually used.

  The digital quadrature modulation unit 116 performs a quadrature modulation process and an aperture correction process after the waveform shaping by the waveform shaping unit 115, and outputs a digital signal after the aperture correction to the digital / analog (DA) conversion unit 117.

  The digital / analog (DA) converter 117 converts the digital signal after the aperture correction into an analog signal and outputs the analog signal to the frequency converter 118.

  The frequency conversion unit 118 converts the frequency of the input analog signal into a radio frequency and outputs it to the power amplification unit 119.

  The power amplifying unit 119 increases the input radio frequency so as to have a specified power, and transmits a single carrier radio frequency (RF) signal from the transmission antenna 120 to the outside.

(Transmission frame configuration method)
Here, an example of a transmission frame configuration method by the transmission frame configuration unit 111 will be described in detail with reference to FIG. FIG. 5 is a flowchart showing a superframe configuration process as a transmission frame configuration method by the transmission frame configuration unit 111 in the single carrier wireless transmission system of the present embodiment. FIG. 7 is a diagram illustrating a relationship between a super frame, an SC-FDE block, an SC-FDE frame, a TS packet, and a data frame in the single carrier wireless transmission system of the present embodiment.

Transmission frame configuration section 111 sets at predetermined values the frame number _{N F} of SC-FDE constituting one super frame (step S1).

Then, the transmission frame configuration section 111 sets at predetermined values the SC-FDE block number _{N B} constituting the 1SC-FDE frame (step S2).

Subsequently, the transmission frame configuration unit 111 sets the number of symbols of the 1SC-FDE block defined by the predetermined number of FFT points 2 ^NFFT and the GI ratio (step S3).

  Subsequently, the transmission frame configuration unit 111 causes the SC-FDE block configuration unit 111a to function, and as described with reference to FIG. 3, the stuffing unit 112 performs the symbol S in the stuffing region in the payload portion of the 1SC-FDE block. Is secured (step S4).

  Subsequently, as described with reference to FIG. 3, the transmission frame configuration unit 111 inserts a TMCC symbol after the stuffing area in the payload portion of the 1SC-FDE block (step S5).

Subsequently, the transmission frame configuration unit 111 allocates TS packet data in the payload portion of the 1SC-FDE block (step S6). The process related to the data allocation of the TS packet will be described later with reference to FIG. 6. Since one data frame is composed of eight TS packets, the number of data frames allocated in one superframe is an integer number. By determining to do so, the TS packet allocated in one superframe is an integer multiple of 8. Then, when the symbols of the TS packet are assigned to each SC-FDE block in one superframe with the determined number of data frames, the number N _DATA of symbols in the data portion that is the maximum assignment for each SC-FDE block is determined. Thus, the number S of symbols in the stuffing area is adjusted.

  Subsequently, as described with reference to FIG. 3, the transmission frame configuration unit 111 inserts UWs before and after the payload of the 1SC-FDE block (step S7).

Thus, as shown in FIG. 7, one superframe frame number _{N F} of the first layer (L1) in SC-FDE the top frame (shown "SC-FDE superframe"), the second layer (L2 SC-FDE frame block number _{N B)} of the SC-FDE block, the third layer (L3) in SC-FDE block, the data frame in the fourth hierarchy (L4), level 5 (L5) in the TS packet, the A transmission frame (superframe) having a five-layer structure is configured. In particular, the number of TS packets and data frames per transmission frame (superframe) is an integer number, and a transmission frame having the highest transmission efficiency in the minimum stuffing area is configured.

  Therefore, with reference to FIG. 6, the TS packet allocation processing in the transmission frame configuration unit 111 will be described. FIG. 6 is a flowchart showing TS packet allocation processing related to this superframe configuration processing.

  Since one data frame is composed of eight TS packets, the transmission frame configuration unit 111 determines that the number of data frames to be allocated in one superframe is an integer, and thus the TS allocated in one superframe. The packet is set to be an integral multiple of 8 (step S61).

Subsequently, the transmission frame configuration unit 111 assigns each SC-FDE block to each SC-FDE block when symbols of the TS packet are assigned to each SC-FDE block in one superframe with the determined number of data frames assigned in one superframe. On the other hand, the number N _DATA of symbols in the data portion that is the maximum allocation is determined (step S62).

Subsequently, when the transmission frame configuration unit 111 inserts the symbols of the TS packet into the number of symbols N _DATA of the data part of each SC-FDE block, the number of symbols S of the stuffing area allocated to each SC-FDE block It is determined whether or not it is necessary (step S63).

  Then, if the number of symbols S in the stuffing area is unnecessary (step S63: No), the transmission frame configuration unit 111 removes the stuffing area secured in advance (step S65), and the number of symbols S in the stuffing area is If necessary (step S63: Yes), the number of symbols S in the stuffing area in each SC-FDE block lock is finally determined, and Null is inserted (step S64).

  Finally, the transmission frame configuration unit 111 sequentially assigns TS packet symbols to each SC-FDE block in one superframe (step S66).

Quantitatively, as described above with reference to FIG. 3, the number of symbols N _DATA in the data area in the SC-FDE block is equal to the number of symbols in the payload part (2 ^NFFT −2 to ^NFFT × GI ratio), minus the TMCC symbol number _{N TMCC} required transmission ^control, a range that does not exceed 2 ^{NFFT -2 NFFT} × GI ratio _{-N TMCC.}

2 ^NFFT -2 ^NFFT × GI ratio _{-N TMCC} ≧ N _DATA (1)

Note that the number of TS packet symbols (number of data symbols) mapped by the mapping unit 110 differs depending on the coding rate R of the inner code and the modulation level of the modulation scheme, and therefore the coding rate R and the modulation rate of the modulation scheme. In consideration of the number of values, it is necessary to determine the number N _DATA of symbols in the data area in the SC-FDE block for transmission.

Further, when 1SC-FDE the number of blocks in a frame _N B, 1 and SC-FDE number of frames in a superframe and _{N F,} in consideration of the values of these _N B, _{N F,} SC upon transmission -It is necessary to determine the number N _DATA of symbols in the data area in the FDE block.

Therefore, first, for the plurality of coding rates R of the inner code used for error correction, the least common multiple of the denominator of the coding rate expressed in an irreducible fraction is N _LCM . That is, when the coding rate R is 1 (no coding), 1/2, 2/3, 3/4, _5/6 , N _LCM = 12. In addition, the modulation multi-level number of the modulation scheme of the data symbol is 2 ^M (M is a positive integer).

  Since one data frame is composed of eight TS packets, it is determined that the number of data frames allocated in one superframe is an integer, so that k is a positive integer and is allocated in one superframe. If the 204-byte TS packet to be obtained is an integral multiple of 8 (8 × k), Expression (2) is established. Note that (1/8) on the right side of Expression (2) is a coefficient for matching the left side of Expression (2) with the bit unit as a byte unit.

_{204 × 8 × k = N DATA} × M × R × (1/8) × N B × N F (2)

By setting the number of data symbols N _DATA that satisfies the above equations (1) and (2), the number of data frames and the number of TS packets per superframe can be made integer.

However, there are cases where simply satisfying the above formulas (1) and (2) does not necessarily lead to a favorable transmission efficiency. For this reason, when the symbols of the TS packet are assigned to each SC-FDE block in one superframe with the determined number of data frames assigned in one superframe, the data part that is the maximum assignment to each SC-FDE block The number of symbols N _DATA is determined.

That is, in order to maximize the amount of information that can be transmitted by satisfying the above equations (1) and (2) and minimizing the number of symbols S in the stuffing area, N _B = 204 × k ′. , N _F = 8 × k ″, and determine the maximum n (n is a positive integer) that satisfies Equation (3). Here, considering the coding rate R and the modulation multi-level number of the modulation scheme, k ′ is a positive integer, 1/2, or 1/4. K ″ is a positive integer, 1/2, 1/4, or 1/8.

2 ^NFFT -2 ^NFFT × GI ratio _{-N TMCC} ≧ N _DATA
N _DATA = 8 × N _LCM ÷ k ′ ÷ k ″ × n (3)

By setting the maximum n satisfying Expression (3), it is possible to make the number of TS packets and data frames per superframe an integer number, and to minimize the number of symbols S in the stuffing area. Thus, the amount of information that can be transmitted is maximized. As ^for the 2 ^{NFFT -2 NFFT} × GI ratio _{-N TMCC} and _{N DATA} and symbol number S of the difference to become a stuffing area, by inserting a NULL for the S symbols in front of the TMCC symbols, than stuffing region It becomes possible to reduce the influence of the previous ghost on the UW in the previous stage.

For example, assuming that N _LCM = 12, k ′ = 4, k ″ = 1, the number of FFT points 2 ^NFFT = 2048, the GI ratio 1/8, the number of TMCC signal symbols N _TMCC = 32, as in the present embodiment. The number of SC-FDE blocks in the SC-FDE frame N _B = 816 = 204 × 4, the number of SC-FDE frames in the superframe N _F = 8 = 8 × 1, and the inner code coding rate R is ½ 2/3, 3/4, 5/6, (1: No encoding of inner code), modulation M-ary number 2 ^M order M = 1-5,
2048-2048 × 1 / 8-32 ≧ 8 × 12 ÷ 4 ÷ 1 × n
1760 ≧ 24 × n
When n = 73, N _DATA = 1752 and S = 8.

Since the maximum N _DATA is 1752 symbols as in this example, S = 8 is allocated, but the number of data symbols allocated to the data part, the number of FFT points 2 ^NFFT , the GI ratio, the number N of TMCC signal symbols It is variable depending on the value of _TMCC , and the number of symbols in the stuffing area can be set to S = 0.

  In the example of the above-described embodiment, the example in which the transmission frame configuration unit 111 sequentially determines based on the operation flow of FIGS. 5 and 6 has been described. However, the transmission frame ( When all parameters necessary for configuring a super frame) are known in advance, a setting table is prepared in advance, and a transmission frame (super frame) is determined by the transmission frame configuration unit 111 based on the setting table. It can also be configured.

  For example, an example of such a setting table is shown in FIG. FIGS. 8A, 8 </ b> B, and 8 </ b> C are diagrams illustrating typical setting examples related to the superframe in the single carrier wireless transmission system of the present embodiment.

8A, 8 </ b> B, and 8 </ b> C, for convenience, “number of SC-FDE blocks”, “number of SC-FDE frames”, “number of FFT points”, “GI ratio”, “ The combinations are arranged in the order of “number of data symbols” and “number of stuffing symbols”. The number of data symbols assigned to the data part, the number of FFT points 2 ^NFFT , the GI ratio, the number of TMCC signal symbols N _TMCC , etc. Although it is shown that it is variable depending on parameters, in any combination according to these parameters, it is possible to make the number of TS packets and data frames per superframe an integer, and stuffing The number of symbols S in the area is minimized, and the amount of information that can be transmitted is maximized. Therefore, according to the present embodiment, one superframe is an integer number of TS packets and data frames, and varies according to transmission parameters (here, FFT size, GI ratio, and encoding process). Since the maximum transmission efficiency is configured with respect to the signal transmission amount, transmission with excellent transmission efficiency is possible.

(Receiver)
FIG. 9 is a block diagram showing a schematic configuration of the receiving apparatus 200 in the single carrier wireless transmission system according to the embodiment of the present invention. 9 is an example in which the number of reception branches is 1.

  The receiving apparatus 200 includes a receiving antenna 201, a frequency conversion unit 202, an analog / digital (AD) conversion unit 203, a digital orthogonal demodulation unit 204, a band limiting filter unit 205, a block synchronization unit 206, an automatic frequency control unit 207, and a Fourier transform unit. 208, channel estimation unit 209, frequency domain equalization unit 210, inverse Fourier transform unit 211, stuffing removal unit 212, TMCC decoding unit 213, bit likelihood calculation unit 214, time deinterleaving unit 215, bit deinterleaving unit 216, Viterbi A decoding unit 217, a transmission frame synchronization unit 218, a byte deinterleaving unit 218a, a Reed-Solomon decoding unit 219, an energy despreading unit 220, a frame synchronization unit 221, and a DVB-ASI output interface unit 222 are provided.

  When receiving apparatus 200 receives a single carrier RF signal from transmitting apparatus 100 via receiving antenna 201, frequency converting section 202 converts the radio frequency of the RF signal to an intermediate frequency (IF), and the IF The signal is output to the AD conversion unit 203.

  The analog / digital (AD) conversion unit 203 converts the input analog IF signal into a digital IF signal and outputs the digital IF signal to the digital quadrature demodulation unit 204.

  The digital quadrature demodulation unit 204 generates a complex baseband signal based on the digital IF signal and the correction information from the automatic frequency control unit 207, corrects the frequency shift, and converts the complex baseband signal after the frequency correction into a band limiting filter unit. It outputs to 205.

  The band limiting filter unit 205 receives the complex baseband signal from the digital quadrature demodulating unit 204, performs band limitation by filtering, and outputs the band-limited complex baseband signal to the block synchronization unit 206. As the band limiting filter, a filter having a root roll-off characteristic is usually used.

  The block synchronization unit 206 receives the band-limited complex baseband signal from the band limitation filter unit 205, detects the synchronization timing of the SC-FDE block, detects the UW part (256 symbols), and the symbols in the subsequent stuffing area , TMCC symbols, data symbols, and UW portions (2048 symbols) are extracted at twice the symbol rate. Further, the block synchronization unit 206 generates phase difference information for automatic frequency control.

  The automatic frequency control unit 207 receives the phase difference information from the block synchronization unit 206, generates information for correcting the frequency shift from the phase difference information, and outputs the generated correction information to the digital orthogonal demodulation unit 204.

  The Fourier transform unit 208 performs Fourier transform on the 2 × 2048 symbol stuffing region symbols, TMCC symbols, data symbols, and UW portions extracted by the block synchronization unit 206, and converts them to frequency domain signals to convert them to the frequency domain, etc. To the conversion unit 210.

  The channel estimation unit 209 performs Fourier transform on the UW portion of the 2 × 256 symbols extracted by the block synchronization unit 206, converts the UW portion into a frequency domain signal, and uses the UW converted into the known frequency domain as a reference signal Channel estimation. The propagation path information obtained by channel estimation is output to frequency domain equalization section 210.

  The frequency domain equalization unit 210 receives stuffing domain symbols, TMCC symbols, data symbols, UW frequency domain signals and frequency domain propagation path information, and performs equalization processing in the frequency domain. The stuffing domain symbols, TMCC symbols, data symbols, and UW frequency domain signals equalized in the frequency domain are output to the inverse Fourier transform unit 211.

  The inverse Fourier transform unit 211 performs inverse Fourier transform on the input frequency domain stuffing domain symbol, TMCC symbol, data symbol, and UW signal, and outputs the time domain signal to the stuffing removal unit 212.

  The stuffing removal unit 212 outputs a signal composed of the TMCC symbols and the data symbols after removing the 8 stuffing symbols and UW to the TMCC decoding unit 213.

  The TMCC decoding unit 213 performs symbol determination on a signal corresponding to a TMCC symbol, decodes the signal based on a predetermined TMCC symbol arrangement, restores the TMCC signal, and obtains information such as a frame number and a modulation scheme. Further, TMCC decoding section 213 outputs data symbols excluding TMCC symbols to bit likelihood calculation section 214 at the subsequent stage.

  The bit likelihood calculation unit 214 obtains the likelihood of each bit in each symbol from the square Euclidean distance between the ideal signal point arrangement and the received signal based on the mapping rule corresponding to the modulation scheme, and the obtained bit likelihood The degree is output to the time deinterleave unit 215.

  The time deinterleaving unit 215 performs time deinterleaving of the input bit likelihood by a deinterleaving circuit that is a pair of the time interleaving circuit of the time interleaving unit 109 of the transmission apparatus 100 and outputs the result to the bit deinterleaving unit 216.

  The bit deinterleaving unit 216 performs bit deinterleaving of the input bit likelihood by a deinterleaving circuit that is a pair of the bit interleaving circuit of the bit interleaving unit 108 of the transmission apparatus 100, and outputs the bit likelihood to the Viterbi decoding unit 217.

  The Viterbi decoding unit 217 performs Viterbi decoding by hard decision or soft decision using the input bit likelihood after bit deinterleaving, and byte-deinterleaves the 0 or 1 bit sequence after error correction by Viterbi decoding. To the unit 218.

  The transmission frame synchronization unit 218 establishes superframe synchronization and specifies the head position of the data frame structure by the processing of the byte deinterleaving unit 218a (and subsequent processing). That is, since the transmission apparatus 100 transmits a single superframe so that the number of TS packets and the number of data frames are integers, synchronization is established for each data frame and the frame is reconstructed again. There is no need. Since the already decoded TMCC signal is always assigned in the SC-FDE block, the coding rate R of the inner code, the block number of the SC-FDE block, and the frame number of the super frame should be immediately grasped. Can do. Thus, according to the present embodiment, one superframe to be transmitted has an integer number of TS packets and data frames, and transmission parameters (here, FFT size, GI ratio, and encoding). The processing efficiency on the receiving side is excellent because the maximum transmission efficiency is obtained for the signal transmission amount that fluctuates in processing.

  The byte deinterleaving unit 218a converts the input bit sequence into a byte unit sequence based on the synchronization position of the data frame obtained from the relationship with the synchronization position of the superframe, and the byte of the byte interleaving unit 105 of the transmission apparatus 100 The deinterleaving circuit paired with the interleaving circuit performs byte deinterleaving and outputs the result to the Reed-Solomon decoding unit 219.

  The Reed-Solomon decoding unit 219 performs error correction decoding by Reed-Solomon decoding on the input byte-unit data series, and outputs the error-corrected signal to the energy despreading unit 220.

  The energy despreading unit 220 performs an energy despreading process corresponding to the energy spreading process performed by the energy spreading unit 103 of the transmission apparatus 100 and outputs it to the frame synchronization unit 221.

  The frame synchronization unit 221 returns B8h at the head of the input data frame to 47h, reconstructs the TS packet, and outputs it to the DVB-ASI output interface unit 222.

  The DVB-ASI output interface unit 222 converts the 204-byte TS signal into a DVB-ASI signal and outputs it.

  As described above, according to the transmission device 100 and the reception device 200 in the wireless transmission system of the present embodiment, the number of TS packets and data are configured while being configured in a single carrier scheme that enables channel equalization in the frequency domain. One superframe can be configured and transmitted so that the number of frames is an integer. For example, when the outer code is a Reed-Solomon (204, 188) code, the number of data symbols in the SC-FDE block can be appropriately selected and inserted. For this reason, it is possible to synchronize TS packets and data frames from the synchronization of one superframe, thereby reducing the processing load on the receiving side and improving the processing efficiency.

  Further, according to the transmission device 100 and the reception device 200 in the wireless transmission system of the present embodiment, since the control signal (TMCC signal) is inserted in the 1SC-FDE block, the relative arrangement relationship of the 1SC-FDE block is immediately grasped. can do.

  Further, according to the transmission device 100 and the reception device 200 in the wireless transmission system of the present embodiment, by providing a stuffing area in a payload portion in a 1SC-FDE block with good transmission efficiency, it is possible to obtain synchronization acquisition and transmission efficiency. Therefore, a well-balanced transmission frame (super frame) can be configured.

  Further, according to the transmission device 100 and the reception device 200 in the wireless transmission system of the present embodiment, the stuffing is performed between the UW located at the head (previous stage) of the 1SC-FDE block and the control signal (TMCC signal) to be inserted. By providing a region (a region where a NULL value is inserted), it is possible to reduce the influence of the previous ghost on the UW of the preceding stage, and to improve the resistance against transmission errors.

  The present invention has been described above with reference to specific embodiments. However, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the technical concept thereof. For example, the present invention can also be applied to a single-carrier transmission apparatus and reception apparatus that perform diversity combining processing.

  According to the present invention, in a single-carrier wireless transmission system that enables channel equalization in the frequency domain, one superframe is configured and transmitted so that the number of TS packets and the number of data frames are integers. This makes it possible to reduce the processing load on the receiving side and improve the processing efficiency, and is useful for a wireless transmission system such as single-carrier broadcasting or communication.

DESCRIPTION OF SYMBOLS 100 Single carrier transmission apparatus 101 DVB-ASI input interface unit 102 Frame synchronization unit 103 Energy spreading unit 104 Reed-Solomon encoding unit 105 Byte interleaving unit 106 Convolutional encoding unit 107 Delay correction unit 108 Bit interleaving unit 109 Time interleaving unit DESCRIPTION OF SYMBOLS 110 Mapping part 111 Transmission frame structure part 111a SC-FDE block structure part 112 Stuffing part 113 TMCC insertion part 114 Unique word (UW) insertion part 115 Waveform shaping part 116 Digital quadrature modulation part 117 Digital analog (DA) conversion part 118 Frequency Conversion unit 119 Power amplification unit 120 Transmission antenna 200 Single-carrier receiver 201 Reception antenna 202 Frequency conversion unit 203 Analog / digital (AD) converter 204 Digital quadrature demodulator 205 Band-limited filter unit 206 Block synchronization unit 207 Automatic frequency control unit 208 Fourier transform unit 209 Channel estimation unit 210 Frequency domain equalization unit 211 Inverse Fourier transform unit 212 Stuffing removal unit 213 TMCC Decoding unit 214 Bit likelihood calculation unit 215 Time deinterleaving unit 216 Bit deinterleaving unit 217 Viterbi decoding unit 218 Transmission frame synchronization unit 218a Byte deinterleaving unit 219 Reed-Solomon decoding unit 220 Energy despreading unit 221 Frame synchronization unit 222 DVB-ASI Output interface section

Claims (8)

A single carrier transmission device that enables channel equalization in the frequency domain,
When a TS packet is transmitted by single-carrier wireless transmission that enables channel equalization in the frequency domain, a predetermined number of single-carrier SC-FDE frames constitute one superframe and a predetermined number of SCs. When the SC-FDE frame is configured by an FDE block and a data symbol of a data frame including a predetermined number of TS packets is allocated to each of the SC-FDE blocks in the one superframe, the one superframe Transmission frame constituting means for constructing a transmission frame based on the superframe by assigning an integer number of the data frames and assigning a maximum transmission efficiency to a signal transmission amount that fluctuates with a predetermined transmission parameter When,
Transmitting means for transmitting a radio frequency signal configured to transmit the TS packet using the superframe;
A transmission device comprising: The transmission frame configuration means includes SC-FDE block configuration means for configuring the SC-FDE block,
The SC-FDE block configuration means includes a modulation scheme of the data part of the SC-FDE block to be configured, a code rate of the inner code, a block number of the SC-FDE block, and the superframe to which the SC-FDE block is allocated. The transmission apparatus according to claim 1, further comprising TMCC insertion means for inserting a symbol of a TMCC signal including at least the frame number of the data into a preceding stage of the data portion of the SC-FDE block constituting the frame number.   The SC-FDE block configuration means provides a stuffing area in the preceding stage of the symbol insertion position of the TMCC signal in the SC-FDE block to be configured, and the number of symbols in the stuffing area so as to maximize the allocation of the data symbols. The transmission apparatus according to claim 2, further comprising stuffing means that includes and adjusts the setting to zero.   The SC-FDE block constituting means further comprises unique word inserting means for inserting the same unique word with a predetermined number of symbols at the beginning and end of the constituting SC-FDE block, and the stuffing area includes the leading unique word. The transmission apparatus according to claim 3, wherein the transmission apparatus is located between a symbol and a symbol of the TMCC signal. A single carrier type receiver that enables channel equalization in the frequency domain,
Receiving means for receiving a radio frequency signal configured to transmit the TS packet using the superframe from the transmission device according to any one of claims 1 to 4,
A transmission frame synchronization means for synchronizing data frames composed of the predetermined number of TS packets by establishing synchronization of the superframe;
A receiving apparatus comprising: A single carrier transmission method that enables channel equalization in the frequency domain,
When a TS packet is transmitted by single-carrier wireless transmission that enables channel equalization in the frequency domain, a predetermined number of single-carrier SC-FDE frames constitute one superframe and a predetermined number of SCs. When the SC-FDE frame is configured by an FDE block and a data symbol of a data frame including a predetermined number of TS packets is allocated to each of the SC-FDE blocks in the one superframe, the one superframe Configuring a transmission frame based on the superframe by assigning an integer number of the data frames and assigning a maximum transmission efficiency to a signal transmission amount that fluctuates with a predetermined transmission parameter;
Transmitting a radio frequency signal configured to transmit the TS packet using the superframe;
The transmission method characterized by including. A single carrier reception method that enables channel equalization in the frequency domain,
Receiving a radio frequency signal transmitted by the transmission method according to claim 6 and configured to transmit the TS packet using the superframe;
Synchronizing the data frame composed of the predetermined number of TS packets by establishing synchronization of the superframe;
A receiving method comprising: A transmission frame configuration method that can be used for single-carrier wireless transmission that enables channel equalization in the frequency domain,
As a transmission frame for wirelessly transmitting a TS packet in a single carrier scheme that enables channel equalization in the frequency domain, a predetermined number of SC-FDE frames of a single carrier scheme constitute one superframe, and a predetermined number of When the SC-FDE frame is composed of SC-FDE blocks and data symbols of a data frame composed of a predetermined number of TS packets are allocated to each SC-FDE block in the one superframe, the one super Configuring the transmission frame based on the superframe by assigning an integer number of the data frames per frame and allocating a maximum transmission efficiency for a signal transmission amount that varies with a predetermined transmission parameter;
Determining the number of symbols of the data symbols so as to be the maximum allocation for each SC-FDE block;
A method for constructing a transmission frame, comprising: