RU2597516C2 - Method and apparatus for transmitting and receiving control information in broadcasting system/communication system - Google Patents

Abstract

FIELD: information technology.

SUBSTANCE: invention relates to encoding, transmission and reception of signal information in broadcasting system/communication system. Formation of signal information, which contains multiple portions; determining the number of coded units, into which signal information must be coded based on the number of bits of the signal information and number of input information bits of the encoder; segmentation of every portion of the signal information based on the number of coded units; creation of input information bits of every encoded unit to include therein segmented parts of every portion of the signal information; coding of input information bits into every encoded unit; and transmission of every encoded unit.

EFFECT: efficiency of encoding and decoding of signal information.

32 cl, 13 dwg

Description

BACKGROUND OF THE INVENTION

1. FIELD OF THE INVENTION

The present invention generally relates to a method and apparatus for transmitting and receiving control information in a broadcast system / communication system, and more particularly, to a method and apparatus for transmitting and receiving control information in a broadcast system / communication system using a code with a low density of parity checks ( LDPC).

2. BACKGROUND OF THE INVENTION

FIG. 1 illustrates a frame used in a conventional broadcast / communication system.

Referring to FIG. 1, a frame 101 including control information is transmitted and received in a broadcast / communication system. Frame 101 includes a preamble 102, Layer 1 (L1) signaling 103, and data 104. Here, control information may be transmitted in the preamble 102 and L1 signaling 103. Preamble 102 is a signal used to achieve time and frequency synchronization, frame edge synchronization, etc., at the receiver.

As illustrated in FIG. 1, data 104 includes Physical Layer Channels 108, 109, and 110 (PLP). Accordingly, different modulation schemes and code rates can be used independently for PLP.

The L1 signaling 103 indicates where the L1 signal is transmitted, and includes preliminary L1 information (L1-pre), configurable L1 information 106, and dynamic L1 information 107. Configurable information 106 L1 and dynamic information 107 L1 are called signaling information 120 L1-post. Also, L1 configurable information 106 may be referred to as L1-post configurable signaling, and L1 dynamic information 107 may be referred to as L1-post dynamic signaling.

The L1-pre information 105 includes information that rarely varies in the time domain, for example, a cell identifier, a network identifier, the number of radio frequencies, the frame length, and the position of the pilot subcarrier. Configurable L1 106 information includes information that changes more often than L1-pre information 105. Examples of configurable information 106 L1 include a PLP identifier, a modulation scheme used to transmit each PLP, and code rate information.

In FIG. 1, the dynamic information 107 L1 includes information that may vary in each frame, for example, information about a position in which each PLP transmitting overhead data is transmitted in the current frame (i.e., information about the positions in which each PLP transmitting overhead data begins and ends in the current frame).

Moreover, L1-post signaling information 120 may include information other than configurable information 106 and dynamic L1-post information 107. For example, L1-post signaling information 120 may include extension information, cyclic redundancy check (CRC) control, which is an error control code, and L1 padding. For example, the use of CRC is described in "Peterson, W. W. and Brown, D. T. (January 1961). 'Cyclic Codes for Error Detection' Proceedings of the IRE 49: 228. doi: 10.1109 / JRPROC.1961.287814."

PLP 1 108, PLP 2 109 and PLP N 110 are service data, and each of them transmits at least one channel of a broadcast service. PLP 1 108, PLP 2 109 and PLP N 110 include actual broadcast data.

Referring to FIG. 1, a receiver that, through preamble 102, has achieved frame synchronization 101, through signaling information 103 L1 obtains information including a circuit for transmitting data, frame lengths, etc. The receiver then receives relevant data via PLP 108-110 based information received.

As described above, when control information, such as signaling information, is transmitted in a broadcast / communication system, the coding efficiency of the control information should be higher than the coding efficiency of the actual information. Therefore, there is a need for an effective method of encoding signal information and an effective method of decoding it.

SUMMARY OF THE INVENTION

Accordingly, the present invention is designed to solve at least the above-described problems encountered in the prior art, and to provide at least the following advantages.

An aspect of the present invention is to provide an encoding method that increases the decoding efficiency of control information.

Another aspect of the present invention is to provide an encoding method to increase the decoding efficiency of L1-post signaling information.

Another aspect of the present invention is to provide a method and apparatus for transmitting and receiving control information in a broadcast / communication system.

In accordance with an aspect of the present invention, there is provided a method for transmitting signaling information in a broadcast / communication system. The method includes generating signaling information that contains multiple portions; determining the number of encoded blocks into which signaling information is to be encoded based on the number of bits (bits) of the signaling information and the number of input information bits of the encoder; segmenting each piece of signaling information based on the number of coded blocks; creation of input information bits of each coded block to include segmented parts of each portion of signal information; coding of input information bits in each coded block; and transmitting each coded block.

In accordance with another aspect of the present invention, a method for receiving signaling information in a broadcast / communication system is provided. The method includes receiving encoded blocks of signal information; obtaining the number of bits of signal information or the number of encoded blocks of signal information; decoding of coded blocks; extracting segmented bits of signal information,

included in decoded encoded blocks; and restoring the extracted segmented bits of the signal information to a state before segmentation.

In accordance with another aspect of the present invention, there is provided an apparatus for transmitting signaling information in a broadcast / communication system. The device includes a level 1 (L1) signaling information generator for generating signaling information that contains a plurality of portions; a controller for determining the number of encoded blocks into which signaling information is to be encoded based on the number of bits of the signaling information and the number of input information bits of the encoder; an encoder for segmenting each piece of signal information based on the number of encoded blocks, creating input information bits of each encoded block to include segmented parts of each piece of signal information, and encoding the input information bits in each encoded block; and a transmitter for transmitting each coded block.

In accordance with another aspect of the present invention, there is provided an apparatus for receiving signaling information in a broadcast / communication system. The device includes a receiver for receiving encoded blocks of signal information; a decoder for decoding encoded blocks; a controller for obtaining the number of bits of signal information or the number of encoded blocks of signal information and extracting the segmented bits of signal information included in the decoded encoded blocks; and a reassembly device for reassembling the segmented bits of the signal information to the state before segmentation.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other features, features and advantages of the present invention will become apparent from the following detailed description in combination with the accompanying drawings, in which:

FIG. 1 illustrates a frame used in a conventional broadcast / communication system;

FIG. 2 illustrates traditional segmented control information in a broadcast / communication system;

FIG. 3 illustrates a method for segmenting control information and generating input information bits of an encoder in accordance with an embodiment of the present invention;

FIG. 4 illustrates a method for generating input information bits of an encoder without segmenting control information in accordance with an embodiment of the present invention;

FIG. 5 illustrates a method for generating input information bits entered in an encoder, in accordance with an embodiment of the present invention;

FIG. 6 illustrates information bits that are input to an encoder, in accordance with an embodiment of the present invention;

FIG. 7 and 8 illustrate information bits that are input to an encoder, in accordance with an embodiment of the present invention;

FIG. 9 illustrates information bits that are input to an encoder, in accordance with an embodiment of the present invention;

FIG. 10 is a flowchart illustrating a method for encoding and transmitting control information using a transmission device in accordance with an embodiment of the present invention;

FIG. 11 is a flowchart illustrating a method for receiving control information with a reception device in accordance with an embodiment of the present invention;

FIG. 12 is a block diagram illustrating a transmission device in accordance with an embodiment of the present invention; and

FIG. 13 is a block diagram illustrating a reception apparatus in accordance with an embodiment of the present invention.

DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION

Various embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the following description and the annexed drawings, a detailed description of well-known functions and configurations will be omitted in order to avoid unnecessary difficulty in understanding the subject matter of the present invention.

Although embodiments of the present invention will be described below using LDPC coding, the present invention is also applicable to other types of coding.

FIG. 2 illustrates traditional segmented control information in a broadcast / communication system. In particular, FIG. 2 illustrates the encoding of configurable L1 information 208 and L1 dynamic information 209 corresponding to L1-post signaling information included in L1 signaling information.

Referring to FIG. 2, since the L1 configurable information 208 includes information that does not change in every frame, but can sometimes change, the L1 configurable information in the K ^ohm frame may be identical to the configurable information L1 in the (K + 1) ^ohm frame. When the configurable information L1 included in the ^Kth frame is identical to the configurable information L1 included in the (K + 1) ^th frame, upon receiving the (K + 1) ^th frame, the receiver can know in advance the configurable information L1 included in (K + 1) ^nth frame, by means of configurable information L1 included in the already received ^Kth frame. Therefore, the receiver can increase the decoding efficiency of the dynamic information L1 included in the (K + 1) ^th frame using the previously known configurable information L1.

More precisely, since the receiver receives the L1 configurable information included in the ^Kth frame, and the same L1 configurable information is transmitted in the (K + 1) ^th frame, when the receiver decodes the (K + 1) ^th frame, the receiver already knows the L1 configurable information included in the (K + 1) ^th frame.

Furthermore, even when the receiver cannot decode the ^Kth frame, the receiver can increase the decoding efficiency of the configurable information L1 and dynamic information L1 in the (K + 1) ^th frame using the configurable information L1 received in the K ^th frame. For example, when the L1 configurable information in the K ^th frame is identical to the L1 configurable information in the (K + 1) ^th frame, the receiver can use the obtained value of the logarithmic likelihood ratio (LLR) to decode the (K + 1) ^th frame, even if the receiver cannot decode L1 configurable information included in the ^Kth frame.

When using the LDPC code, the encoder encodes only information bits whose number is less than a predetermined number of input information bits (coding unit; number of input information bits corresponding to the input size of the encoder). Therefore, in the LDPC coding scheme, when the number of input information bits is greater than a predetermined number of information bits, the input information bits are segmented. In this document, the information entered into the encoder is called “input information bits”, and the code word that is output after encoding by the encoder is called the “encoded block”.

Referring to FIG. 2, configurable L1 information 208 and L1 dynamic information 209, which have variable lengths and correspond to L1-post signaling information having a size "a", are segmented into two coded blocks. When the number of bits of the L1-post signaling information is greater than the predetermined number of encoder information bits, the L1-post signaling information is segmented into two coded blocks. In this case, the first input information bits 210 are formed by extracting part a / 2 from the L1-post signaling information, and the second input information bits 212 are formed by extracting the remaining part a / 2 from L1-post signaling information. The first input information bits 210 include L1 configurable information ₁ 210 (Configurable ₁ ), which is part of the L1 configurable information 208. Namely, the first input information bits 210 include only configurable information 208 L1. Also, the second input information bits 212 include configurable information ₂ 211 L1 (configurable ₂ L1), which is part of the configurable information 208 L1, and dynamic information 209 L1 (dynamic L1).

It is assumed that the configurable information 208 L1 included in the ^Kth frame is identical to the configurable information 208 L1 included in the (K + 1) ^th frame. Accordingly, when the receiver receives the ^Kth frame and succeeds in decoding the configurable information 208 L1, there is an advantage in that the receiver does not need to decode the first coded block including the first input information bits 210 in the (K + 1) ^th frame. However, the second encoded block including the second input information bits 212 includes only configurable information ₂ 211 L1 (configurable ₂ ), which is part of the configurable information 208 L1. Accordingly, although the receiver knows the configurable information 208 L1, the number of bits of the known information is not large enough for the receiver to significantly increase the decoding efficiency of the dynamic information 209 L1.

According to an embodiment of the present invention, the configurable information 208 L1, which is illustrated in FIG. 2 is included in each of the first input information bits and second input information bits.

Moreover, in the LDPC coding scheme, the decoding efficiency of information located at the front of the input information bits of the encoder is often higher than the decoding efficiency of information located at the rear of the input information bits of the encoder. Therefore, when LDPC is used, in accordance with an embodiment of the present invention, it is desirable to arrange the dynamic information L1, that is, information that can change in each frame, in front of the input information bits in order to increase the decoding efficiency of the receiver.

FIG. 3 illustrates a method for segmenting control information and generating input information bits of an encoder in accordance with an embodiment of the present invention. In particular, in FIG. 3, the segmentation value is 2, which implies that the L1 signaling information (in particular, the L1-post signaling information) to be encoded is divided into the first input information bits and the second input information bits in accordance with a coding unit corresponding to the encoder input size, and the first input information bits and second input information bits are input to the encoder. Therefore, when the segmentation value is 2, the input information bits encoded by the encoder are divided into two encoded blocks, and then two encoded blocks are output from the encoder.

Referring to FIG. 3, the configurable information 301 L1 is segmented into two parts, that is, configurable information ₁ 303 L1 (configurable ₁ L1) and configurable information ₂ 304 L1 (configurable ₂ L1) in accordance with a segmentation value of 2. Moreover, dynamic information 302 L1 also divided into two parts, that is, dynamic information ₁ 305 L1 (dynamic ₁ L1) and dynamic information ₂ 306 L1 (dynamic ₂ L1) in accordance with a segmentation value of 2.

In addition, the transmitter creates the first input information bits of the encoder 310 from the divided configurable information ₁ 303 L1 (configurable ₁ L1) and the dynamic information ₁ 305 L1 (dynamic ₁ L1) and creates the second input information bits of the encoder 320 from the configured information ₂ 304 L1 (configurable ₂ L1) and dynamic information ₂ 306 L1 (dynamic ₂ L1). The transmitter first enters each of the first input information bits of the encoder 310 and the second input information bits of the encoder 320 into the LDPC encoder to form two encoded blocks. In the first input information bits 310, dynamic information ₁ 305 L1 is placed before the configurable information ₁ 303 L1. Similarly, in the second input information bits 320, dynamic information ₂ 306 L1 is placed before the configurable information ₂ 304 L1.

Alternatively, the dynamic information L1 and the configurable information L1 may be interchanged with each other. For example, configurable information ₁ 303 L1 may be located before the dynamic information ₁ 305 L1, and configurable information ₂ 304 L1 may be located before the dynamic information ₂ 306 L1.

Moreover, it is also possible to place dynamic information 302 L1 before the configurable information 301 L1, even when the input information bits of the encoder are not segmented. Namely, even when the length of the L1-post signaling information is less than the predetermined number of information bits of the LDPC encoder, and accordingly the segmentation of the L1-post signaling information is not required, dynamic information 302 L1 can still be placed before the configurable information 301 L1.

FIG. 4 illustrates a method for generating input information bits of an LDPC encoder without segmenting L1-post signaling information in accordance with an embodiment of the present invention.

Referring to FIG. 4, when the input information bits of the LDPC encoder are created by including configurable information 410 L1 and dynamic information 411 L1, if the decoding efficiency of the bits located in the front of the input information bits is higher than the decoding efficiency of the bits located in the back of the input information bits, then the input information bits are created by placing dynamic information 411 L1 before the configurable information 410 L1, as indicated by the symbol 420.

FIG. 5 illustrates a method for creating input information bits that are input to an encoder, in accordance with an embodiment of the present invention. In particular, FIG. 5 illustrates that several pieces of control information included in the L1-post signaling information are segmented according to a segmentation value of 2.

Referring to FIG. 5, the 550 L1-post signaling that is input to the encoder includes configurable 500 L1 information, dynamic information 501 L1 of the current frame (or “dynamic, current frame”, or “dynamic L1-post signaling for the current frame”) and dynamic information 502 L1 of the next frame (or "dynamic, next frame", or "dynamic signaling L1-post for the next frame"), which is the dynamic information L1 of the frame that needs to be transmitted later. In particular, when the current frame is the ^Kth frame, the dynamic information 502 L1 of the next frame transmitted in the K ^ohm frame includes a value identical to the dynamic information L1 to be transmitted in the (K + 1) ^th frame. The L1 dynamic information 502 of the next frame is sampled information, and the transmitter can inform the receiver via L1-pre signaling whether L1 dynamic information is available for the next frame. For example, when the flag L1_REPETITION_FLG in the L1-pre signaling is 1, this indicates that there is dynamic information L1 for the next frame. However, when L1_REPETITION_FLG is set to 0, this indicates that there is no L1 dynamic information for the next frame.

Each of the configurable information 500 L1, dynamic information 501 L1 of the current frame and dynamic information 502 L1 of the next frame is segmented into 2 parts. In particular, the configurable information 500 L1 is divided into configurable information ₁ 504 L1 (configurable ₁ L1) and configurable information ₂ 505 L1 (configurable ₂ L1), as indicated by the symbol 510. Dynamic information 501 L1 of the current frame is divided into dynamic information ₁ 506 L1 of the current frame ₍₁ L1 dynamic current frame) and dynamic information ₂₅₀₇ of the current frame L1 (L1 dynamic current frame _2), as indicated by the symbol 515. The L1 dynamic information 502 of the next frame is divided into a dynamic For information ₁₅₀₈ of the next frame L1 (L1 dynamic ₁ of the next frame) and dynamic information ₂₅₀₉ of the next frame L1 (L1 dynamic ₂ of the next frame), as indicated by the symbol 520.

During encoding, the configurable information ₁ 504 L1, the dynamic information ₁ 506 L1 of the current frame and the dynamic information ₁ 508 L1 of the next frame are created as the first input information bits 530. In addition, the configurable information ₂ 505 L1, the dynamic information ₂ 507 L1 of the current frame and dynamic information ₂ 509 L1 of the next frame are created as the second input information bits 535.

Configurable information ₁ 504 L1 is placed in the last part of the first input information bits 530, after the dynamic information ₁ 506 L1 of the current frame and the dynamic information ₁ 508 L1 of the next frame.

Similarly, configurable information ₂ 505 L1 is located in the last part of the second input information bits 535, after the dynamic information ₂ 507 L1 of the current frame and the dynamic information ₂ 509 L1 of the next frame.

The creation of the first input information bits 530 and the second input information bits 535, as described above, is based on the fact that the decoding efficiency of the bits located in front of the information bits is higher, as with LDPC encoding. Accordingly, the actual location of the configurable information 500 L1, the dynamic information 501 L1 of the current frame and the dynamic information 502 L1 of the next frame in the first input information bits 530 and second input information bits 535 may vary depending on the decoding efficiency, for example, based on the type of encoding used.

Also, as described above with reference to FIG. 4, even when segmentation is not needed, given that the decoding efficiency of the bits located in the front of the input information bits is higher when the LDPC coding scheme is used, the dynamic information L1 of the current frame can be located in the very front of the input information bits, and the configurable information L1 may be located in the last part of the input information bits.

Therefore, regardless of whether segmentation is applied, the location of the dynamic information L1 and the configurable information L1 can be determined taking into account the coding efficiency of the input information bits using the LDPC encoder. Namely, as described above, when the decoding efficiency of the bits located at the rear of the input information bits is higher than the decoding efficiency of the bits located at the front of the input information bits, configurable information L1 may be located in front of the input information bits, and the dynamic information L1 may located at the rear of the input information bits.

Moreover, the configurable information L1 and the dynamic information L1 can be encoded / decoded independently of each other. In particular, when the dynamic information L1 includes the dynamic information L1 of the current frame and the dynamic information L1 of the next frame, as described above, each of the optional dynamic information of the current frame and the dynamic information L1 of the next frame is segmented, and the first input information bits corresponding to a certain unit , which is entered into the encoder, are created from segmented dynamic information ₁ L1 of the current frame and segmented dynamic information ₁ L1 of the next frame. Also, the second input information bits corresponding to a certain unit, which is entered into the encoder, are created from segmented dynamic information ₂ L1 of the current frame and segmented dynamic information ₂ L1 of the next frame. In addition, regardless of whether segmentation is necessary, dynamic information L1 of the current frame is located at the front of the input information bits, and dynamic information L1 of the next frame is located at the rear of the input information bits.

FIG. 6 illustrates the segmentation of input information bits that are input to an encoder, in accordance with an embodiment of the present invention. In FIG. 6, the segmentation value is N _{post_FEC_Block} .

Referring to FIG. 6, the L1-post signaling information 650, that is, the information bits that are input to the encoder, includes configurable L1 600 information, dynamic L1 information of the current frame, dynamic L1 information of the next frame, extension information 603, CRC information 604 (control cyclic redundancy code) and fill bits 605 L1. CRC information 604 includes CRC parity bits that the receiver uses to determine if an error has occurred in the configurable information 600 L1, dynamic information 601 L1 of the current frame, dynamic information 602 L1 of the next frame, and extension information 603. Although not illustrated in FIG. 6, multiple CRCs may be used. In particular, it will be apparent to those skilled in the art that the number of CRCs and their positions can be changed.

The length of the configurable information 600 L1 is K _{L1_conf} , the length of the dynamic information 601 L1 of the current frame is K _{L1_dyn, c} , the length of the dynamic information 602 L1 of the next frame is K _{L1_dyn, n} , the length of the extension information 603 is K _{L1_ext} , and the length of CRC 604 is N _crc . When K _{L1_dyn, n} , that is, the length of the dynamic information 602 L1 of the next frame is 0, then a value of 0 indicates that the dynamic information 602 L1 of the next frame is not used. When K _{L1_ext} is 0, this indicates that the extension information 603 is not used. Similarly, when N _crc is 0, this indicates that the CRC code is not used.

Each of K _{L1_conf} , K _{L1_dyn, c} and K _{L1_dyn, n} can be expressed as a function of the number of PLP. Otherwise, you can find out K _{L1_conf} , K _{L1_dyn, c} and K _{L1_dyn, n} by means of a predefined alarm. For example, parameters representing the length, such as L1_POST_CONF_SIZE, representing K _{L1_conf} , L1_POST_DYN, CURRENT_SIZE, representing K _{L1_dyn, c} , L1_POST_DYN, NEXT_SIZE, representing K _{L1_dyn, n} , and L1_POST_3, information L1_POST_EXT_EXT_EXT_EXT_EXT_EXT_EXT_EXT_EXT_EXT_EXT_EXT_EXT_EXT_EXT_EXT_EXT_EXT_SYS pre.

When the Bose-Chowdhury-Hockingham (BCH) code is connected to the LDPC code, and the BCH code connected to the LDPC code is used for the L1 signal information, and the length of the input bits of the BCH code is K _bch , N _{post_FEC_Block} , which corresponds to the number of signal information blocks coded L1 can be calculated using Equation (1) below. Basically, N _{post_FEC_Block} is the number of several _{pieces of} information into which bits of L1 signaling information are segmented. When considering the connection of the BCH code with the LDPC code, the number of coded blocks is calculated using the length K _{bch of the} input bits of the BCH code. However, when only the LDPC code is used, the number of coded blocks can be calculated using the length K _{ldpc of the} input bits of the LDPC code instead of K _bch .

представляет наименьшее целое число больше x. Например,

.In Equation (1), K _{post_ex_pad} is the sum of the lengths of configurable information 600 L1, dynamic information 601 L1 of the current frame, dynamic information 602 L1 of the next frame, information 603 of the extension and information 604 CRC. K _{post_ex_pad} = K _{L1_conf} + K _{L1_dyn, c} + K _{L1_dyn, n} + K _{L1_ext} + N _crc . Namely, K _{post_ex_pad} is equal to the number of bits of the L1-post signaling with the exception of the fill field. In Equation (1)

represents the smallest integer greater than x. For example,

.

Based on N _{post_FEC_Block} corresponding to the number of coded blocks, K _pad corresponding to the length at which zero bits are inserted can be calculated using Equation (2) below.

представляет наименьшее целое число больше x. Например,

. K_pad, соответствующее длине, на которую вставляются нулевые разряды, можно опустить.In Equation (2)

represents the smallest integer greater than x. For example,

. K _pad corresponding to the length at which zero digits are inserted can be omitted.

As described above with reference to FIG. 3 and FIG. 5, when each of the configurable information 600 L1, the dynamic information 601 L1 of the current frame, the dynamic information 602 L1 of the next frame, the information 603 extension, CRC 604 and fill 605 L1 is segmented by N _{post_FEC_Block} , the length of each of the segments can be calculated using Equations (3 ) - (6) below.

In particular, the correction coefficient K _{L1_conf_PAD} for configurable information 600 L1, the length of which is equal to K _{L1_conf} , can be calculated using Equation (3). Namely, K _{L1_conf_PAD} is a correction factor when the length K _{L1_conf of} the configurable information L1 is not a multiple of N _{post_FEC_Block} corresponding to the number of coded blocks for segmentation.

представляет наибольшее целое число меньше x. Например,

. K_{L1_conf_PAD} является значением, которое заставляет длину конфигурируемой информации_i 600b L1 из числа i^ых (i=1, …, (N_{post_FEC_Block}-1)) входных информационных разрядов кодера быть равной

и которое заставляет длину конфигурируемой информации 600c L1 из числа (N_{post_FEC_Block})^ых входных информационных разрядов кодера быть равной

.In Equation (3)

represents the largest integer less than x. For example,

. K _{L1_conf_PAD} is a value that causes the length of the configurable information _i 600b L1 from among the i ^s (i = 1, ..., (N _{post_FEC_Block} -1)) of the input information bits of the encoder to be equal

and which causes the length of the configurable information 600c L1 from the number (N _{post_FEC_Block} ) of ^the input information bits of the encoder to be equal

.

.For example, when K _{L1_conf} = 299 and N _{post_FEC_Block} = 2,

.

K _{L1_conf_PAD} having a value of 1 causes the length of the configurable information ₁ L1 from the number of the first input information bits of the encoder to be 149 and makes the length of the configurable information ₂ L1 from the number of the second input information bits of the encoder equal to 149 + 1 = 150. These conditions are intended to prevent additional padding with zeros.

The correction factor length K _{L1_dyn, c_PAD} for dynamic information 601 L1 of the current frame, the length of which is K _{L1_dyn, c} , as illustrated in FIG. 6 can be calculated using Equation (4). K _{L1_dyn, c_PAD} is a correction factor when the length K _{L1_dyn, c of} the dynamic information 601 L1 of the current frame is not a multiple of N _{post_FEC_Block} , corresponding to the number of coded blocks for segmentation.

представляет наибольшее целое число меньше x.In Equation (4)

represents the largest integer less than x.

The correction factor length K _{L1_dyn, n_PAD} for dynamic information L1 602 of the next frame, the length of which is K _{L1_dyn, n} , as illustrated in FIG. 6 can be calculated using Equation (5). K _{L1_dyn, n_PAD} is a correction factor when the length K _{L1_dyn, n of} the dynamic information L1 of the next frame is not a multiple of N _{post_FEC_Block} corresponding to the number of coded blocks for segmentation.

представляет наибольшее целое число меньше x.In Equation (5)

represents the largest integer less than x.

As described above, the dynamic information 602 L1 of the next frame is not always used. In this case, it is natural that K _{L1_dyn, n} should be 0. When each of the extension information 603 having a length K _{L1_ext} , CRC 604 having a length N _crc and the _pad 605 L1 having a length K _pad is segmented in accordance with N _{post_FEC_Block} , as in Equations (3) to (5), the correction factor length K _{L1_ext_PAD} for extension information 603 + CRC 604 + pad 605 L1 can be calculated using Equation (6) below.

представляет наибольшее целое число меньше x. Как описано выше, K_pad используется не всегда, и в этом случае K_pad равно 0. Также N_crc символизирует разряд CRC.In Equation (6), K _{L1_ext_PAD} is a correction factor when the sum of the lengths of the extension information 603, CRC 604, and L1 _pad 605 is not a multiple of N _{post_FEC_Block} corresponding to the number of coded blocks for segmentation, and

represents the largest integer less than x. As described above, K _pad is not always used, and in this case, K _pad is 0. Also, N _crc represents the CRC bit.

The process of calculating K _sig (i) corresponding to the number of i- ^th input information bits 670 of the encoder using the values computed using Equations (1) - (6) is given by Equation (7).

представляет наибольшее целое число меньше x. Например,

.In Equation (7)

represents the largest integer less than x. For example,

.

Number (N _{post_FEC_Block)} ^s input information bits of the encoder 680 may be calculated using Equation (8).

представляет наибольшее целое число меньше x.In Equation (8)

represents the largest integer less than x.

Although the segmentation is performed above in such a way that there is a difference in length between K _sig (i) (i = 1, ..., (N _{post_FEC_Block} -1)) and K _sig (N _{post_FEC_Block} ), this segmentation can be performed in such a way that does not occur the difference in length between K _sig (i) (i = 1, ..., (N _{post_FEC_Block} -1)) and K _sig (N _{post_FEC_Block} ). Also, as described above, you can make changes to the equations in accordance with the number of CRC used and their location.

For example, when a CRC code is applied to each of the configurable information 600 L1, the dynamic information 601 of the current frame and the dynamic information 602 of the next frame, K _{L1_conf} , K _{L1_dyn, c} and K _{L1_dyn, n} may include the number of CRC bits of the configurable information 600 L1, the number of CRC bits of dynamic information 601 of the current frame and the number of CRC bits of dynamic information 602 of the next frame, respectively.

In FIG. 6, the symbol 690 denotes the input information bits of the encoder from the first to (N _{post_FEC_Block} ) ^th input information bits of the encoder, into which all the input information bits of the encoder, indicated by the symbol 650, are segmented using Equations (1) - (8). Although the segmentation operation is often performed by the encoder, when the encoder includes an interleaver, the interleaver can interleave (segment) all segmented input information bits of the encoder (i.e., L1 signaling information).

More specifically, the symbol 690 means that the first input information bits 660 of the encoder include information bits (segmented fill bits L1) 600a, 601a, 602a, 603a, 604a and 605a, which are obtained by segmenting the input information bits 600, 601, 602 , 603, 604, and 605 _encoders according to N _{post_FEC_Block} . Symbol 690 indicates that i ^s input information bits 670 of the encoder include data bits 600b, 601b, 602b, 603b, 604b and 605b (which differ from the input data bits 650 of the encoder), which are obtained by segmenting the input information bits 600, 601 , 602, 603, 604, and 605 _encoders according to N _{post_FEC_Block} . Symbol 690 indicates that (N _{post_FEC_Block)} ^s input information bits 680 of the encoder include the last segmentation 600c, 601c, 602c, 603c, 604c and 605c of the number of data bits that are obtained by segmenting the input information bits 600, 601, 602, 603, 604, and 605 _encoders according to N _{post_FEC_Block} .

Therefore, the receiver, which receives the input information bits 690, decodes the encoded blocks obtained by encoding the input information bits 660 of the encoder, the input information bits 670 of the encoder and the input information bits 680 of the encoder. The receiver then reassembles (to the pre-segmented state) segmented bits L1a, 601b and 601c of dynamic information L1 of the current frame, segmented bits 602a, 602b and 602c of L1 dynamic information of the next frame, segmented bits 600a, 600b and 600c of configurable information L1, segmented bits 603a , 603b and 603c of extension information, segmented CRC bits 604a, 604b and 604c and segmented L1 fill bits 605a, 605b and 605c. Accordingly, the receiver can restore the original L1-post signaling information.

When the receiving device according to an embodiment of the present invention knows the length K _{L1_conf of} configurable information 600 L1, the length K _{L1_dyn, c of the} dynamic information 601 L1 of the current frame and the length K _{L1_dyn, n of the} dynamic information 602 L1 of the next frame, the receiving device can easily recover the signal L1-post information. In this regard, the transmission device in accordance with an embodiment of the present invention can transmit the values of K _{L1_conf} , K _{L1_dyn, c} and K _{L1_dyn, n} . Since each value of K _{L1_conf} , K _{L1_dyn, c} and K _{L1_dyn, n} can be expressed as a function of the number of PLP, if the transmission device transmits the number of PLP, the receiving device can restore the L1-post signaling information. Therefore, when the transmission device includes NUM_PLP (PLP Number) information corresponding to the PLP number, for example, in the L1-pre information 105 illustrated in FIG. 1, the receiving device can efficiently receive L1-post signaling information.

Even when segmentation is not performed, as illustrated in FIG. 4, if the transmission device transmits the number of PLPs, even when the dynamic information 411 L1 is transmitted before the configurable information 410 L1, the reception device can use the number of PLPs to recover the L1-post signaling information. Also, if the dynamic information L1 transmitted in the K ^th frame is identical to the dynamic information L1 transmitted in the (K + 1) ^th frame when the receiving device restores the L1-post information in the (K + 1) ^th frame, regardless of whether if the receiving device is successful in decoding the dynamic information L1 in the K ^ohm frame, the receiving device can use the dynamic information L1 in the K ^ohm frame.

FIG. 7 and 8 illustrate information bits that are input to an encoder, in accordance with an embodiment of the present invention. In FIG. 7, the dynamic information L1 is located after the configurable information L1.

Referring to FIG. 7, the length of the configurable information 721 L1 is K _{L1_conf} , the length of the dynamic information 722 L1 of the current frame is K _{L1_dyn, c} , the length of the dynamic information 723 L1 of the next frame is K _{L1_dyn, n} , the length of the extension field 724 is K _{L1_ext} and the length of CRC 725 is N _crc .

The length K _{L1_conf of} configurable information 721 L1 can be obtained using the parameter L1_POST_CONF_SIZE or the number of PLP. Parameters (L1_POST_CONF_SIZE or the number of PLP) can be transmitted in the L1-pre signaling one at a time or together. The length K _{L1_dyn, c of} dynamic information 722 L1 of the current frame can be obtained using the parameter L1_POST_DYN, CURRENT_SIZE or the number of PLP. These parameters can be transmitted in L1-pre signaling, one at a time or together. The length K _{L1_dyn, n of the} dynamic information 723 L1 of the next frame can be obtained using the parameter L1_POST_DYN, NEXT_SIZE or the number of PLP. These parameters can be transmitted in L1-pre signaling, one at a time or together. The length K _{L1_ext of} the extension field 724 can be obtained using the L1_POST_EXT_SIZE parameter. The length N _crc of CRC 725 may be fixed, for example, equal to 32.

Referring to FIG. 7, L1-post signaling 720 includes a variable number of bits that are transmitted by one or more LDPC blocks in accordance with the L1-post signaling length. An LDPC block has the same meaning as an encoded block.

N _{post_FEC_Block} corresponding to the number of LDPC blocks for 720 L1-post signaling is determined using Equation (9).

. Значение A является поправочным коэффициентом, который заставляет K_sig, которое представляет количество информационных разрядов в кодированном блоке после сегментации, быть меньше либо равным K_bch, и может изменяться в соответствии с количеством типов сигналов, которые сегментируются. Например, когда сегментируется каждая из конфигурируемой информации 721 L1, динамической информации 722 L1 текущего кадра, динамической информации 723 L1 следующего кадра и информации 724 расширения, сегментируется каждая из 4 порций информации. Соответственно, значение A может быть равно 3.In Equation (9), when K _{bch is} greater than or equal to K _{post_ex_pad} , N _{post_FEC_Block} is 1. However, when K _{bch is} less than K _{post_ex_pad} , N _{post_FEC_Block} is

. The value of A is a correction factor that causes K _sig , which represents the number of information bits in the encoded block after segmentation, to be less than or equal to K _bch , and may vary according to the number of types of signals that are segmented. For example, when each of the configurable information 721 L1, the dynamic information 722 L1 of the current frame, the dynamic information 723 L1 of the next frame and the extension information 724 is segmented, each of the 4 pieces of information is segmented. Accordingly, the value of A may be 3.

When the dynamic information 723 L1 of the next frame is not used in any frame, the value of A may be 2, but the value of A may be fixed to 3 for system efficiency.

символизирует наименьшее целое число, больше либо равное x, и значение K_bch представляет количество информационных разрядов BCH.In Equation (9)

symbolizes the smallest integer greater than or equal to x, and the value of K _bch represents the number of information bits BCH.

In the above case, when connecting the BCH code with the LDPC code, the number of encoded blocks is calculated using the length K _{bch of the} input bits of the BCH code. However, when only the LDPC code is used, the number of coded blocks can be calculated using the length K _{ldpc of the} input bits of the LDPC code instead of K _bch .

K _{post_ex_pad} is a value that can be obtained by adding the length N _crc of CRC 725 to the sum of the parameters L1_POST_CONF_SIZE, L1_POST_DYN, CURRENT_SIZE, L1_POST_DYN, NEXT_SIZE and L1_POST_EXT_SIZE, which are, respectively, the length of the dynamic information 7, which is configured for L21 dynamic data length1 of 22 the next frame information 723 L1 and the length of the extension field 724. Also, K _{post_ex_pad} represents the number of bits of the L1-post signaling, with the exception of L1_PADDING 726, corresponding to the fill field. The CRC length N _crc can be determined based on the maximum L1-post signaling length, for example 32. In this case, K _{L1_PADDING} corresponding to the length of the field 726 called L1_PADDING can be calculated using Equation (10) below.

In Equation (10), K _{L1_conf_PAD} represents the length of the fill field of the configurable information L1, K _{L1_dyn, c_PAD} represents the length of the fill field of dynamic information L1 of the current frame, K _{L1_dyn, n_PAD} represents the length of the fill field of dynamic information L1 of the next frame, and K _{L1_ext_PAD} represents the length of the fill field of field 724 expansion, including CRC 725. The length of each of L1_CONF_PAD 727, L1_DYN, C_PAD 728, L1_DYN, N_PAD 729 and L1_EXT_PAD 730, which are filling fields, can be calculated using Equations (11) - (14) below.

In Equations (11) - (14), K _{L1_conf} , K _{L1_dyn, c} , K _{L1_dyn, n} and K _{L1_ext} are the values obtained using the parameters L1_POST_CONF_SIZE, L1_POST_DYN, CURRENT_SIZE, L1_POST_DYN, NEXT_SIZE and LEXT_SIZE, respectively. These parameters respectively represent the length of the configurable information L1, the length of the dynamic information L1 of the current frame, the length of the dynamic information L1 of the next frame, and the length of the extension field. N _crc corresponds to the number of CRC bits, for example 32. When L1_REPETITION_FLAG, which indicates whether the dynamic information L1 of the next frame is used, is set to 0, the length K _{L1_dyn, n of the} dynamic information L1 of the next frame is 0.

K _post corresponding to the total length of the entire L1-post signaling, including the fill field, can be set using Equation (15) below.

In this case, K _sig , which corresponds to the number of information bits in each block N _{post_FEC_Block} , can be set using Equation (16) below.

As illustrated in FIG. 7, to achieve greater efficiency, configurable information 721 L1 (configurable alarm L1-post), dynamic information 722 L1 of the current frame (dynamic signaling L1-post for the current frame) and dynamic information 723 L1 of the next frame (dynamic signaling L1-post for the next frames) are distributed as evenly as possible in all Direct Error Correction (FEC) blocks.

разрядов из числа разрядов конфигурируемой информации 710 L1. Первая динамическая информация 732 L1 текущего кадра включает в себя

разрядов из числа разрядов динамической информации 722 L1 текущего кадра. Первая динамическая информация 733 L1 следующего кадра включает в себя

разрядов из числа разрядов динамической информации 723 L1 следующего кадра. Первое поле 734 расширения включает в себя

разрядов из числа разрядов поля 724 расширения и разрядов CRC 725.In particular, the input bits of the first coded block illustrated in FIG. 7 include first configurable information 731 L1 (Configurable ₁ or Conf_1), first dynamic information 732 L1 of the current frame (Dynamic, current frame ₁ or D, C_1), first dynamic information 733 L1 of the next frame (Dynamic, next frame ₁ or D, N_1) and the first extension field 734 (Extension ₁ or E, C_1). The first configurable information 731 L1 includes

bits from among the bits of the configurable information 710 L1. The first dynamic information 732 L1 of the current frame includes

bits from the number of bits of dynamic information 722 L1 of the current frame. The first dynamic information 733 L1 of the next frame includes

bits from the number of bits of dynamic information 723 L1 of the next frame. The first extension field 734 includes

bits from the number of bits of the field 724 expansion and bits CRC 725.

кодированного блока.According to an embodiment of the present invention, the bits of the L1-post signaling extension field 724 and its bits CRC 725 are included in the first extension field 734 from among the input bits of the first encoded block. The above creation is performed in an identical manner from the first encoded block to

coded block.

) разрядов из числа разрядов конфигурируемой информации 710. N^ая динамическая информация 740 L1 текущего кадра включает в себя (

) разрядов из числа разрядов динамической информации 722 L1 текущего кадра. N^ая динамическая информация 741 L1 следующего кадра включает в себя (

) разрядов из числа разрядов динамической информации 723 L1 следующего кадра. N^ое поле 742 расширения включает в себя (

) разрядов из числа разрядов поля 724 расширения и разрядов CRC 725.Information bits in the (N _{post_FEC_Block)} ^th coded block include N ^th configurable information 739 (Configurable _N or Conf_N), N ^th dynamic information 740 L1 current frame (Dynamic, the current frame is _N or D, C_N), N ^th dynamic information 741 L1 next frame (Dynamic next frame _N or D, N_N), N ^th extension field 742 (Enhanced _N or E, C_N) and filling fields such L1_CONF_PAD 727, L1_DYN, C_PAD 728, L1_DYN, N_PAD L1_EXT_PAD 729 and 730. N ^Single configurable information 739 includes (

) bits from among the bits of the configurable information 710. The N- ^th dynamic information 740 L1 of the current frame includes (

) bits of the number of bits of dynamic information 722 L1 of the current frame. ^{A N} N L1 dynamic information 741 of the next frame includes (

) bits of the number of bits of dynamic information 723 L1 of the next frame. N ^th expansion field 742 includes (

) bits from the number of bits of the field 724 expansion and bits CRC 725.

According to an embodiment of the present invention, the bits of the L1-post signaling extension field 724 and its bits CRC 725 are included in the first extension field 734 from among the input bits of the first encoded block. K _{L1_ext_PAD} is the length of the fill field from the bits of the L1-post signal extension field 724 and its bits CRC 725. You can insert 0 in the fill field. Moreover, the position of the fill field can be changed.

For example, all padding fields may be located at the end of the encoding input, as illustrated in FIG. 8.

According to an embodiment of the present invention, when the parameter L1_POST_EXT_SIZE is first set to a value including an extension field length and a CRC length, instead of being set only to an extension field length, and then transmitted, K _{L1_ext} can be considered as a value obtained by adding the field length extensions and N _crc . In this case, all N _crc can be deleted.

FIG. 9 illustrates information bits that are input to an encoder, in accordance with an embodiment of the present invention.

Referring to FIG. 9, the length of the configurable information 921 L1 is K _{L1_conf} , the length of the dynamic information 922 L1 of the current frame is K _{L1_dyn, c} , the length of the dynamic information 923 L1 of the next frame is K _{L1_dyn, n} , the length of the extension field 924 is K _{L1_ext} and the length of CRC 925 is N _crc .

The length K _{L1_conf of} configurable information 921 L1 can be obtained using the parameter L1_POST_CONF_SIZE or using the number of PLP. The length K _{L1_dyn, c of} dynamic information 922 L1 of the current frame can be obtained using the parameter L1_POST_DYN, CURRENT_SIZE or using the number of PLP. The length K _{L1_dyn, n of} dynamic information 923 L1 of the next frame can be obtained using the parameter L1_POST_DYN, NEXT_SIZE or using the number of PLP. The length K _{L1_ext of} the extension field 924 can be obtained using the L1_POST_EXT_SIZE parameter. CRC 925 may have a length N _{crc of} , for example, 32. In this case, although the sum of the length of the dynamic information 923 L1 of the next frame and the length of the extension field 924 or the length of the CRC can be expressed as one parameter, it is assumed that the parameters exist separately for the convenience of describing the present invention.

Referring to FIG. 9, L1-post signaling 920 includes a variable number of bits that are transmitted by one or more LDPC blocks in accordance with the L1-post signaling length. The LDPC block has the same meaning as the coded block illustrated in FIG. 9.

N _{post_FEC_Block} corresponding to the number of LDPC blocks for 920 L1-post signaling is determined using Equation (17) below.

. Значение A является поправочным коэффициентом, который заставляет K_sig, которое является количеством информационных разрядов в кодированном блоке после сегментации, быть меньше либо равным K_bch, и может изменяться в соответствии с количеством типов сигнализации, которые сегментируются.In Equation (17), when K _{bch is} greater than or equal to K _{post_ex_pad} , N _{post_FEC_Block} is 1. However, when K _{bch is} less than K _{post_ex_pad} , N _{post_FEC_Block} is

. The value of A is a correction factor that causes K _sig , which is the number of information bits in the encoded block after segmentation, to be less than or equal to K _bch , and may vary according to the number of signaling types that are segmented.

For example, when each of the configurable information 921 L1, the dynamic information 922 L1 of the current frame, the dynamic information 923 L1 of the next frame and the extension information 924 is segmented, each of 3 pieces of information is segmented. Accordingly, the value of A may be equal to 2.

символизирует наименьшее целое число, больше либо равное x, и значение K_bch представляет количество информационных разрядов BCH. При соединении кода BCH с кодом LDPC количество кодированных блоков вычисляется с использованием длины K_bch входных разрядов кода BCH. Однако, когда используется только код LDPC, количество кодированных блоков может вычисляться с использованием длины K_ldpc входных разрядов кода LDPC вместо K_bch.In Equation (17)

symbolizes the smallest integer greater than or equal to x, and the value of K _bch represents the number of information bits BCH. When connecting the BCH code with the LDPC code, the number of coded blocks is calculated using the length K _{bch of the} input bits of the BCH code. However, when only the LDPC code is used, the number of coded blocks can be calculated using the length K _{ldpc of the} input bits of the LDPC code instead of K _bch .

K _{post_ex_pad} is the value obtained by adding the length N _crc of CRC 925 to the sum of the parameters L1_POST_CONF_SIZE, L1_POST_DYN, CURRENT_SIZE, L1_POST_DYN, NEXT_SIZE and L1_POST_EXT_SIZE, which are, respectively, the length of the dynamic information 9 that is configured to be L1, dynamic information 9, length 22, length 9 L1 of the next frame and the length of the extension field 924. K _{post_ex_pad also} represents the number of bits of the L1-post signaling, with the exception of L1_PADDING 926, corresponding to the fill field. CRC length N _crc may be determined based on the maximum L1-post signaling length.

K _{L1_PADDING} corresponding to the length of the field 926 called L1_PADDING can be calculated using Equation (18) below.

In Equation (18), K _{L1_conf_PAD} represents the length of the fill field of the configurable information L1, K _{L1_dyn, c_PAD} represents the length of the fill field of the dynamic information L1 of the current frame, and K _{L1_ext_PAD} represents the length of the fill field of the extension field 924 including the dynamic information 923 L1 of the next frame and CRC 925. The lengths L1_CONF_PAD 927, L1_DYN, C_PAD 928 and L1_EXT_PAD 930, which are fill fields, can be calculated using Equations (19), (20) and (21), respectively.

In Equations (19) - (21), K _{L1_conf} , K _{L1_dyn, c} , K _{L1_dyn, n} and K _{L1_ext} are the values that can be obtained using the parameters L1_POST_CONF_SIZE, L1_POST_DYN, CURRENT_SIZE, L1_POST_DYN, NEXT_SIZ_SIZ_SIZ_SIZ_SIZ_SIZESTIZIZZIZ_STIZIZSTIZIZ_STIZESTIZIZ_STIZIZ_STIZIZSTIZEIZIZ_STIZIZSTIZESTIZESTIZESTIZESTIZEzEStEizEzEStEizEzESt medical Doctor in Physics Physics Physics Physics & Username. These parameters respectively represent the length of the configurable information 921 L1, the length of the dynamic information 922 L1 of the current frame, the length of the dynamic information 923 L1 of the next frame, and the length of the extension field 924. N _crc , which corresponds to the number of CRC digits, may be equal to, for example, 32.

может быть выражено в виде K_{L1_dyn,n,ext}, и K_{L1_dyn,n,ext} (L1_POST_DYN,N,EXT_SIZE) можно получить с использованием параметров, представляющих соответствующую длину.When L1_REPETITION_FLAG, which indicates whether the dynamic information L1 of the next frame is used, is set to 0, the length K _{L1_dyn, n of the} dynamic information L1 of the next frame is 0. In this case, the sum of the length of the dynamic information of the next frame and the length of the extension field can be expressed as one parameter. For example,

can be expressed as K _{L1_dyn, n, ext} , and K _{L1_dyn, n, ext} (L1_POST_DYN, N, EXT_SIZE) can be obtained using parameters representing the corresponding length.

K _post , which corresponds to the total length of the entire L1-post signaling, including the fill field, can be set using Equation (22) below.

K _sig , which corresponds to the number of information bits in each block N _{post_FEC_Block} , can be specified using Equation (23).

As illustrated in FIG. 9, to achieve greater efficiency, configurable information 921 L1 (configurable L1-post signaling), dynamic information 922 L1 of the current frame (dynamic L1-post signaling for the current frame), dynamic information 923 L1 of the next frame (dynamic L1-post signaling for the next frame) and the extension field 924 are distributed as evenly as possible in all FEC units.

разрядов из числа разрядов конфигурируемой информации 910 L1. Первая динамическая информация 932 L1 текущего кадра включает в себя

разрядов из числа разрядов динамической информации 922 L1 текущего кадра. Первое поле 934 расширения включает в себя

разрядов из числа разрядов динамической информации 923 L1 следующего кадра, разрядов поля 924 расширения и разрядов CRC 925. Вышеупомянутое создание выполняется по идентичному способу от первого кодированного блока до

кодированного блока.In particular, the input bits of the first encoded block include the first configurable information 931 L1 (Configurable ₁ or Conf_1), the first dynamic information 932 L1 of the current frame (Dynamic, the current frame ₁ or D, C_1) and the first extension field 934 (Extension ₁ or E, C_1). The first configurable information 931 L1 includes

bits from among the bits of the configurable information 910 L1. The first dynamic information 932 L1 of the current frame includes

bits from the number of bits of dynamic information 922 L1 of the current frame. The first extension field 934 includes

bits from the number of bits of dynamic information 923 L1 of the next frame, bits of the extension field 924 and bits of CRC 925. The above creation is performed in the same way from the first encoded block to

coded block.

) разрядов из числа разрядов конфигурируемой информации 910. N^ая динамическая информация 940 L1 текущего кадра включает в себя (

) разрядов из числа разрядов динамической информации 922 L1 текущего кадра. N^ое поле 942 расширения включает в себя (

) разрядов из числа разрядов динамической информации 923 L1 следующего кадра, разрядов поля 924 расширения и разрядов CRC 925. В заполняющее поле можно вставить 0. Более того, положение заполняющего поля можно менять. Например, заполняющие поля могут располагаться в конце входных данных кодирования.Information bits in the (N _{post_FEC_Block)} ^th coded block include N ^th configurable information 939 (Configurable _N or Conf_N), N ^th dynamic information 940 L1 current frame (Dynamic, the current frame is _N or D, C_N), N ^th field 942 extensions (Expansion _N or E, C_N) and filling fields such L1_CONF_PAD 927, L1_DYN, C_PAD L1_EXT_PAD 928 and 930. N ^{a N} N _{post_FEC_Block} configurable information 939 includes (

) bits of the number of bits of the configurable information 910. N ^th dynamic information 940 L1 of the current frame includes (

) bits of the number of bits of dynamic information 922 L1 of the current frame. N ^th expansion field 942 includes (

) bits from the number of bits of dynamic information 923 L1 of the next frame, bits of the extension field 924 and bits of CRC 925. You can insert 0. In the filling field, Moreover, the position of the filling field can be changed. For example, padding fields may be located at the end of the encoding input.

According to another embodiment of the present invention, segmentation is performed when the dynamic information L22 of the current frame, the dynamic information L23 of the next frame, the extension field 724 and the CRC 725 are considered as one field. In this case, the information obtained in the previous frame may not be used in the current frame for the dynamic information 723 L1 of the next frame, extension field 724 and CRC 725, and the L1-post signaling may or may not include dynamic information 732 L1 the next frame and the extension field 724. Accordingly, the dynamic information 723 L1 of the next frame, the extension field 724 and the CRC 725 can be considered as one field to facilitate segmentation, and then segmentation can be performed.

In this case, the correction factor A may be equal to 1 in Equation (17). Based on the value N _{post_FEC_Block} calculated using Equation (17), the length K _{L1_PADDING of} field 726 L1_PADDING can be calculated using Equation (24).

In Equation (24), K _{L1_conf_PAD} represents the length of the fill field of the configurable information L1, and K _{L1_ext_PAD} represents the length of the fill field of the extension field 724, including the dynamic information 722 L1 of the current frame, the dynamic information 723 L1 of the next frame and CRC 725. The lengths L1_CONF_PAD and L1_EXT_PAD, which are filling fields, can be calculated using Equations (25) and (26), respectively.

In Equations (25) and (26), K _{L1_conf} , K _{L1_dyn, c} , K _{L1_dyn, n,} and K _{L1_ext} are values calculated using the parameters L1_POST_CONF_SIZE, L1_POST_DYN, CURRENT_SIZE, L1_POST_DYN, NEXT_SIZE and LEXT_SIZE, respectively. These parameters respectively represent the length of the configurable information 721 L1, the length of the dynamic information 722 L1 of the current frame, the length of the dynamic information 723 L1 of the next frame, and the length of the extension field 724. N _crc , which corresponds to the number of CRC digits, may be equal to, for example, 32.

When L1_REPETITION_FLAG, which indicates whether the dynamic information L1 of the next frame is used, is set to 0, the length K _{L1_dyn, n of the} dynamic information L1 of the next frame is 0. In this case, the sum of the length of the dynamic information of the current frame, the length of the dynamic information of the next frame and the length of the extension field can be expressed as a single parameter.

According to another embodiment of the present invention, the L1-post signaling does not include an extension field 724. In this case, the value of K _{L1_ext} becomes 0, and only the segmented bits of the CRC field 725 are included in the extension fields 734, 738 and 742 from among the segmented information bits that are input into the encoded blocks. In this case, the number of segmented bits in the CRC field can be very small, so it may be inefficient to first segment the extension field 724 and the CRC field 725, and then create extension fields 734, 738 and 742 from the segmented extension field 724 and the segmented CRC field 725. Therefore, in this case, it may be more efficient to segment the CRC field 725 together with the dynamic information 723 L1 of the next frame.

In particular, instead of simultaneously segmenting the extension field 724 and the CRC field 725 (since the value of the extension field is 0), the dynamic information 723 L1 of the next frame and the field 725 CRC are simultaneously segmented, and then the first dynamic information 733 L1 of the next frame, the second dynamic information 737 L1 of the next frame and (N _{post_FEC_Block} ) ^th dynamic information 741 L1 of the next frame are created from the segmented dynamic information 723 L1 of the next frame and the segmented field 725 CRC.

According to another embodiment of the present invention, an extension field and dynamic information 723 L1 of the next frame do not exist. In this case, as described in the above example, the number of segmented bits of the CRC field can be very small, so that segmentation can be inefficient. Therefore, in this case, the field 725 CRC is segmented along with dynamic information 722 L1 of the current frame, and then the first dynamic information 731 L1 of the current frame, the second dynamic information 735 of the current frame and (N _{post_FEC_Block)} ^th dynamic information 739 of the current frame are generated from the segmented field 725 CRC and segmented dynamic information 722 L1 of the current frame.

FIG. 10 is a flowchart illustrating a method for encoding and transmitting control information using a transmission device in accordance with an embodiment of the present invention.

Referring to FIG. 10, in step 1000, the transmission device determines the L1 signaling information and generates the L1-pre information and the L1-post signaling information. However, since the present invention relates to encoding L1-post signaling information, the following description will not describe the encoding of L1-pre information.

At 1002, the transmission device determines the number of bits in the L1-post signaling information, with the exception of the fill field. At 1004, the transmission device determines the number of coded blocks to be used for transmitting L1-post signaling bits based on the number of bits in the L1-post signaling information, with the exception of the fill field, and the coding unit. In this document, the coding unit is the size on the basis of which the encoder performs the encoding at a time, and is also referred to in this document as the "number of input information bits of the encoder". When the BCH coding is connected to the LDPC coding, the coding unit is the number of information bits that are allowed to be entered in the BCH encoder, and accordingly is also called BCH information bits. Also, the number of bits of the L1-post signaling information, with the exception of the filling field, is equal to the sum of the number of bits in the configurable information L1, the number of bits of the dynamic information L1 of the current frame, the number of bits of the dynamic information L1 of the next frame, and the number of bits of the CRC and the extension field.

At step 1006, the transmission device segments the L1-post signaling information in accordance with the determined number of coded blocks. The segmentation scheme may use the equations described above.

More specifically, in step 1006, the number of fill bits corresponding to the correction factor for each of several pieces of information is first calculated (bits of configurable information L1, bits of dynamic information L1 of the current frame, bits of dynamic information L1 of the next frame, and bits of CRC and extension fields). The number of all filling bits of the L1-post signaling is obtained by adding the calculated numbers of filling bits from the first to the fourth for several pieces of information.

After that, the number of L1-post signaling bits is calculated using the number of L1-post signaling filling bits and the number of L1-post signaling bits, except for the filling field. The number of input bits for each coded block can be obtained by dividing the calculated number of L1-post signaling bits by the number of coded blocks. In other words, encoding is performed by entering the same number of L1-post signaling bits into the encoder as the received number of input bits.

Further, each of the aforementioned several pieces of information (bits of configurable information L1, bits of dynamic information L1 of the current frame, bits of dynamic information L1 of the next frame and bits of CRC and extension fields) is segmented in accordance with a certain number of coded blocks, and input bits for code blocks are created, having a length corresponding to the received number of input bits. In each of the above several pieces of information, the number of groups of created input bits for code blocks is equal to a certain number of coded blocks.

In step 1008, transmitting apparatus includes signal information L1-post, segmented at step 1006, at each of the input information bits from the first encoder to the (N _{post_FEC_Block)} ^s input information bits of the encoder. In step 1010, the transmitter encodes input data bits from the first encoder to the (N _{post_FEC_Block)} ^s input information bits of the encoder, and a receiver then transmits an encoded block from the first to (N _{post_FEC_Block)} ^th coded block.

In step 1012, after the transmission device transmits the number of bits of the L1-post signaling information, the number of coded blocks, or the number of PLPs to the reception device, it proceeds to the next frame in step 1014 and repeats steps 1000 through 1012 for the next frame.

In FIG. 10, although step 1012 is described as being performed after step 1010 is performed, step 1012 may be performed before step 1010. Also, although the transmission device is described as transmitting the number of bits of L1-post signaling information, the number of coded blocks, or the number of PLPs to the receiving device at step 1012, the transmission device may transmit all information or may transmit only a portion of information (eg, the number of PLPs).

For example, in a broadcast / communication system according to an embodiment of the present invention, when the transmission device transmits the number of bits of the L1-post signaling information and the signal code information (LDPC codeword length and code rate) without transmitting the number of coded blocks, the receiving device may Estimate the number of coded blocks using this information.

FIG. 11 is a flowchart illustrating a method for receiving control information with a reception device in accordance with an embodiment of the present invention.

Referring to FIG. 11, in step 1100, the receiving device receives the L1 signaling information of the current frame. At step 1102, the receiving device receives at least one of the number of bits of the L1-post signaling information, the number of encoded blocks, and the number of PLPs that are transmitted in the current frame. In this document, the receiving device may receive the number of bits of the L1-post signaling information or the number of coded blocks from the transmission device, or may use previously determined information. This selection can be changed according to the system user. In addition, although L1-pre information is also received at block 1100, the present invention is focused on L1-post signaling information, and the L1-pre information is processed according to a scheme performed by the broadcast / communication system to which the present invention is applied. Therefore, a more detailed description of the L1-pre information will be omitted.

At 1104, the receiving device decodes the received encoded blocks. At step 1106, the reception device retrieves the segmented bits of L1-post signaling information included in each of the decoded encoded blocks, and at step 1108, the reception device reassembles the bits of L1-post signaling information extracted at step 1106 to return them to the state before segmentation.

At step 1110, the receiving device receives data using bits of L1-post signaling information reassembled at 1108 and L1 signaling information, in addition to the L1-post signaling information received at block 1100.

At step 1112, the receiving device advances to the next frame and repeats the operation at steps 1100-1110 for the next frame.

FIG. 12 is a block diagram illustrating a transmission apparatus 1200 in accordance with an embodiment of the present invention.

Referring to FIG. 12, the L1 signaling information generator 1202 generates the L1 signaling information of the current frame. In particular, the L1 signaling information generator 1202 generates L1-pre information and the L1-post signaling information and outputs the generated L1-pre information and the generated L1-post signaling information to the encoder 1204. However, since the present invention relates to encoding the L1-post signaling information and the L1-pre information is encoded by the broadcast / communication system to which the present invention is applied, the L1-pre information will not be described in more detail herein.

Controller 1206 determines the number of bits of the L1-post signaling information, with the exception of the fill field generated by the L1 signaling information generator 1202. Controller 1206 determines the number of coded blocks to be used for transmitting L1-post signaling bits based on a certain number of bits in L1-post signaling information, with the exception of the padding field and coding unit. Also, controller 1206 may determine the number of PLPs.

When the controller 1206 determines the number of coded blocks, it segments the L1-post signaling information according to the determined number of coded blocks. In addition, when encoder 1204 includes an interleaver, a controller 1206 controls the interleaver to segment L1-post signaling information. Otherwise, the controller 1206 may control the L1 signaling information generator 1202 to segment the L1-post signaling information. The segmentation scheme may use the above equations.

More specifically, the controller 1206 first calculates the number of fill bits corresponding to a correction factor for each of several pieces of information (bits of configurable information L1, bits of dynamic information L1 of the current frame, bits of dynamic information L1 of the next frame, and bits of CRC and extension fields). The controller then obtains the number of all filling bits of the L1-post signaling by adding the calculated first to fourth amounts of filling bits for several pieces of information. The controller calculates the number of all L1-post signaling bits using the obtained number of L1-post signaling filling bits and the number of L1-post signaling bits, except for a specific filling field. The number of input bits required for each coded block can be obtained by dividing the calculated number of L1-post signaling bits by a certain number of coded blocks. In other words, encoding is performed by entering the same number of L1-post signaling bits into the encoder as the received number of input bits.

The controller performs a control operation for segmenting each of the above several pieces of information (bits of configurable information L1, bits of dynamic information L1 of the current frame, bits of dynamic information L1 of the next frame and bits of CRC and extension fields) in accordance with a certain number of coded blocks and creating input bits for code blocks having a length corresponding to the received number of input bits. The number of groups of created input bits for code blocks is equal to a certain number of coded blocks.

Controller 1206 controls the encoder 1204 or signaling information generator 1202 L1, to enable the segmented information signal in the L1-post each of the input information bits from the first encoder to the (N _{post_FEC_Block)} ^s input information bits of the encoder. The encoder 1204 encodes the first input information bits from the first encoder to the (N _{post_FEC_Block)} ^s input information bits of the encoder, and then outputs to the transmitter 1208 coded blocks from the first to (N _{post_FEC_Block)} ^th coded block. A transmitter 1208 transmits the encoded blocks to the reception device on a frame-by-frame basis in accordance with control from the controller 1206. Moreover, the transmitter 1208 can transmit the number of PLPs determined by the controller 1206 to the reception device.

FIG. 13 is a block diagram illustrating a reception device 1300 in accordance with an embodiment of the present invention.

Referring to FIG. 13, the receiver 1302 receives the L1 signal information of the current frame and outputs the received L1 signal information of the current frame to the decoder 1304. Also, the receiver 1302 receives at least one of the number of bits of the L1-post signal information, the number of encoded blocks, and the number of PLPs that are transmitted in the current frame, and outputs the received data to the controller 1306. In this document, the controller 1306 may receive the number of bits of the L1-post signaling information, the number of coded blocks, or the number of PLP from the transmission device, or may Use previously defined information. This selection can be changed according to the system user. In addition, although the receiver 1302 also receives L1-pre information, since the present invention is oriented to L1-post signaling information, and the L1-pre information is processed according to a scheme performed by the broadcast / communication system to which the present invention is applied, a more detailed description L1-pre information will be skipped.

Decoder 1304 decodes the received encoded blocks.

In accordance with an embodiment of the present invention, the controller 1306 performs a control operation to extract segmented bits of L1-post signaling information included in each of the decoded encoded blocks. The reassembly device 1308 reassembles the L1-post signal information bits extracted in accordance with the control from the controller 1306 to return them to the state before segmentation. Namely, the controller 1306 calculates the segmentation value using one of the number of bits of the L1-post signaling information, the number of encoded blocks and the number of PLP, and reports the calculated segmentation value to the reassembly device 1308. Accordingly, the controller 1306 enables recovery of the original L1-post signaling information by reverse performing the process performed by the transmission device.

A controller 1306 controls the receiver 1302 to receive data using the reassembled bits of the L1-post signaling information and the L1 signaling information in addition to the L1-post signaling information.

As described above, although the configurable information L1 and the dynamic information L1 are called “L1-post signaling information”, this designation is a term used when the present invention is applied to DVB-T2 (Digital Terrestrial Video Broadcasting - 2). Accordingly, when the present invention is applied to DVB-C2 (Cable Digital Video Broadcasting - 2), the configurable information L1 and the dynamic information L1 may also be referred to as “Part II signaling information”.

Moreover, the above-described embodiments of the present invention can also be implemented in the form of codes that can be recorded by a computer onto a non-changeable computer-recorded recording medium.

For example, a computer-recordable recording medium may be an optional storage device that can store data that can be read by a computer system.

Examples of computer-recordable media that are not changed over time include read-only memory (ROM), random access memory (RAM), compact disc (CD), magnetic tape, flexible disk, and optical storage. However, the present invention is not limited to these examples.

In accordance with the above-described embodiments of the present invention, the transmitter encodes the control information in order to efficiently change the control information, so that the receiver can increase the decoding efficiency.

Despite the fact that the present invention is shown and described with reference to some of its options for implementation, specialists in the art will understand that it can be made various changes in form and content without deviating from the essence and scope of the invention. Therefore, the nature and scope of the present invention are not limited to the described embodiments, but are defined by the appended claims and their equivalents.

Claims (32)

1. A method for transmitting signaling information using a transmitter in a broadcast / communication system, comprising the steps of:
generating signaling information that contains a plurality of portions;
determining the number of encoded blocks into which the signaling information is to be encoded based on the number of bits of the signaling information and the number of input information bits of the encoder;
segmenting each piece of signaling information based on the number of coded blocks;
creating input information bits of each encoded block to include there a segmented portion of each portion of signal information;
encode input information bits to each encoded block; and
transmit each coded block. 2. The method of claim 1, wherein the signaling information includes configurable layer 1 (L1) information and dynamic L1 information. 3. The method according to claim 2, in which the dynamic information L1 includes dynamic information L1 of the current frame and dynamic information L1 of the next frame. 4. The method of claim 2, wherein the signaling information further includes at least one of an extension field, a cyclic redundancy check (CRC) control field, and a fill field. 5. The method according to p. 4, in which the number of encoded blocks is determined using:

moreover, N _{post_FEC_Block} represents the number of coded blocks, K _{post_ex_pad} represents the number of signaling bits, with the exception of the filling field, K _bch corresponds to the coding unit and represents the number of bits that the encoder encodes at one time, K _bch represents the number of Bowse-Chowdhury-Hawkingham information bits (BCH ), which is allowed to be inserted into the BCH encoder when the BCH encoding is combined with low density parity check (LDPC) coding, and A represents a correction factor. 6. The method according to p. 5, in which the length of the filling field is set using:

wherein K _{L1_PADDING} represents the length of the fill field, K _{L1_conf_PAD} represents the length of the fill field of configurable information L1, K _{L1_dyn, c_PAD} represents the length of the fill field of dynamic information L1 of the current frame, K _{L1_dyn, n_PAD} represents the length of the fill field of dynamic information L1 of the next frame, and K _{L1_ext_PAD} represents the length of the fill field of the extension field including the CRC. 7. The method according to claim 1, in which K _{L1_conf_PAD} is determined using:

moreover, K _{L1_dyn, c_PAD} is determined using:

and K _{L1_dyn, n_PAD} is determined using:

and
and K _{L1_ext_PAD} is determined using:

wherein K _{L1_conf} represents the length of the configurable information L1, K _{L1_dyn, c} represents the length of the dynamic information L1 of the current frame, K _{L1_dyn, n} represents the length of the dynamic information L1 of the next frame, K _{L1_ext} represents the length of the extension field, N _crc represents the length of the CRC field, and N _{post_FEC_Block} represents the number of coded blocks. 8. The method according to p. 1, in which the length of the input information bits of each encoded block is determined using:

where K _sig represents the length of the input information bits of each coded block, N _{post_FEC_Block} represents the number of coded blocks, and K _post is determined using:

wherein K _{post_ex_pad} represents the number of signaling bits, with the exception of the fill field, and K _{L1_PADDING} represents the length of the fill field. 9. A method for receiving signal information using a receiver in a broadcast / communication system, comprising the steps of:
receive coded blocks of signal information;
receiving the number of bits of the signal information or the number of coded blocks of the signal information, the number of coded blocks being determined based on the number of bits of the signal information and the number of input information bits of the encoder, each piece of signal information being segmented based on the number of coded blocks;
decode coded blocks;
extracting segmented bits of signal information included in decoded encoded blocks; and
restore the extracted segmented bits of the signal information to the state before segmentation. 10. The method of claim 9, wherein the signaling information includes configurable layer 1 (L1) information and dynamic L1 information. 11. The method of claim 10, wherein the dynamic information L1 includes dynamic information L1 of the current frame and dynamic information L1 of the next frame. 12. The method of claim 10, wherein the signaling information further includes at least one of an extension field, a cyclic redundancy check (CRC) control field, and a fill field. 13. The method according to p. 12, in which the number of encoded blocks is determined using:

moreover, N _{post_FEC_Block} represents the number of coded blocks, K _{post_ex_pad} represents the number of signaling bits, with the exception of the filling field, K _bch corresponds to the coding unit and represents the number of bits that the encoder encodes at one time, K _bch represents the number of Bowse-Chowdhury-Hawkingham information bits (BCH ), which is allowed to be inserted into the BCH encoder when the BCH encoding is combined with low density parity check (LDPC) coding, and A represents a correction factor. 14. The method according to p. 13, in which the length of the filling field is set using:

wherein K _{L1_PADDING} represents the length of the fill field, K _{L1_conf_PAD} represents the length of the fill field of configurable information L1, K _{L1_dyn, c_PAD} represents the length of the fill field of dynamic information L1 of the current frame, K _{L1_dyn, n_PAD} represents the length of the fill field of dynamic information L1 of the next frame, and K _{L1_ext_PAD} represents the length of the fill field of the extension field including the CRC. 15. The method according to p. 9, in which K _{L1_conf_PAD} is determined using:

moreover, K _{L1_dyn, c_PAD} is determined using:

and K _{L1_dyn, n_PAD} is determined using:

and
and K _{L1_ext_PAD} is determined using:

wherein K _{L1_conf} represents the length of the configurable information L1, K _{L1_dyn, c} represents the length of the dynamic information L1 of the current frame, K _{L1_dyn, n} represents the length of the dynamic information L1 of the next frame, K _{L1_ext} represents the length of the extension field, N _crc represents the length of the CRC field, and N _{post_FEC_Block} represents the number of coded blocks. 16. The method according to p. 9, in which the length of the input information bits of each encoded block is determined using:

where K _sig represents the length of the input information bits of each coded block, N _{post_FEC_Block} represents the number of coded blocks, and K _post is determined using:

wherein K _{post_ex_pad} represents the number of signaling bits, with the exception of the fill field, and K _{L1_PADDING} represents the length of the fill field. 17. A device for transmitting signaling information in a broadcast / communication system, comprising:
a level 1 (L1) signal information generator for generating signal information that contains a plurality of portions;
a controller for determining the number of encoded blocks into which the signaling information is to be encoded based on the number of bits of the signaling information and the number of input information bits of the encoder;
an encoder for segmenting each piece of signal information based on the number of encoded blocks, creating input information bits of each encoded block to include a segmented portion of each piece of signal information, and encoding the input information bits in each encoded block; and
transmitter for transmitting each coded block. 18. The device according to claim 17, in which the signal information contains configurable information of level 1 (L1) and dynamic information L1. 19. The device according to p. 18, in which the dynamic information L1 contains dynamic information L1 of the current frame and dynamic information L1 of the next frame. 20. The device according to claim 18, in which the signaling information further comprises at least one of an extension field, a cyclic redundancy check (CRC) control field, and a fill field. 21. The device according to p. 20, in which the number of encoded blocks is determined using:

moreover, N _{post_FEC_Block} represents the number of coded blocks, K _{post_ex_pad} represents the number of signaling bits, with the exception of the filling field, K _bch corresponds to the coding unit and represents the number of bits that the encoder encodes at one time, K _bch represents the number of Bowse-Chowdhury-Hawkingham information bits (BCH ), which is allowed to be inserted into the BCH encoder when the BCH encoding is combined with low density parity check (LDPC) coding, and A represents a correction factor. 22. The device according to p. 20, in which the length of the filling field is set using:

where K _{L1_padding} represents the length of the fill field, K _{L1_conf_PAD} represents the length of the fill field of configurable information L1, K _{L1_dyn, c_PAD} represents the length of the fill field of dynamic information L1 of the current frame, K _{L1_dyn, n_PAD} represents the length of the fill field of dynamic information L1 of the next frame, and K _{L1_ext_PAD} represents the length of the fill field of the extension field including the CRC. 23. The device according to p. 17, in which K _{L1_conf_PAD} is determined using:

moreover, K _{L1_dyn, c_PAD} is determined using:

and K _{L1_dyn, n_PAD} is determined using:

and
and K _{L1_ext_PAD} is determined using:

wherein K _{L1_conf} represents the length of the configurable information L1, K _{L1_dyn, c} represents the length of the dynamic information L1 of the current frame, K _{L1_dyn, n} represents the length of the dynamic information L1 of the next frame, K _{L1_ext} represents the length of the extension field, N _crc represents the length of the CRC field, and N _{post_FEC_Block} represents the number of coded blocks. 24. The device according to p. 17, in which the length of the input information bits of each encoded block is determined using:

where K _sig represents the length of the input information bits of each coded block, N _{post_FEC_Block} represents the number of coded blocks, and K _post is determined using:

wherein K _{post_ex_pad} represents the number of signaling bits, with the exception of the fill field, and K _{L1_PADDING} represents the length of the fill field. 25. A device for receiving signaling information in a broadcast / communication system, comprising:
a receiver for receiving encoded blocks of signal information;
a decoder for decoding encoded blocks;
a controller for obtaining the number of bits of signal information or the number of encoded blocks of signal information, the number of encoded blocks being determined based on the number of bits of signal information and the number of input information bits of the encoder, each piece of signal information being segmented based on the number of encoded blocks, and extracting segmented bits of signal information included in decoded encoded blocks; and
a reassembly device for reassembling the segmented bits of the signal information to a state before segmentation. 26. The device according to p. 25, in which the signal information contains configurable information level 1 (L1) and dynamic information L1. 27. The device according to p. 26, in which the dynamic information L1 contains dynamic information L1 of the current frame and dynamic information L1 of the next frame. 28. The apparatus of claim 26, wherein the signaling information further comprises at least one of an extension field, a cyclic redundancy check (CRC) control field, and a fill field. 29. The device according to p. 28, in which the number of encoded blocks is determined using:

moreover, N _{post_FEC_Block} represents the number of coded blocks, K _{post_ex_pad} represents the number of signaling bits, with the exception of the filling field, K _bch corresponds to the coding unit and represents the number of bits that the encoder encodes at one time, K _bch represents the number of Bowse-Chowdhury-Hawkingham information bits (BCH ), which is allowed to be inserted into the BCH encoder when the BCH encoding is combined with low density parity check (LDPC) coding, and A represents a correction factor. 30. The device according to p. 29, in which the length of the filling field is set using:

where K _{L1_PADDING} represents the length of the fill field, K _{L1_cong_PAD} represents the length of the fill field of configurable information L1, K _{L1_dyn, c_PAD} represents the length of the fill field of dynamic information L1 of the current frame, K _{L1_dyn, n_PAD} represents the length of the fill field of dynamic information L1 of the next frame, and K _{L1_ext_PAD} represents the length of the fill field of the extension field including the CRC. 31. The device according to p. 25, in which K _{L1_conf_PAD} is determined using:

moreover, K _{L1_dyn, c_PAD} is determined using:

and K _{L1_dyn, n_PAD} is determined using:

and
and K _{L1_ext_PAD} is determined using:

wherein K _{L1_conf} represents the length of the configurable information L1, K _{L1_dyn, c} represents the length of the dynamic information L1 of the current frame, K _{L1_dyn, n} represents the length of the dynamic information L1 of the next frame, K _{L1_ext} represents the length of the extension field, N _crc represents the length of the CRC field, and N _{post_FEC_Block} represents the number of coded blocks. 32. The device according to p. 25, in which the length of the input information bits of each encoded block is determined using:

where K _sig represents the length of the input information bits of each coded block, N _{post_FEC_Block} represents the number of coded blocks, and K _post is determined using:

wherein K _{post_ex_pad} represents the number of signaling bits, with the exception of the fill field, and K _{L1_PADDING} represents the length of the fill field.

Images