CN103460606B - Method and apparatus for sending and receiving control information in broadcast/communication system - Google Patents

Method and apparatus for sending and receiving control information in broadcast/communication system Download PDF

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CN103460606B
CN103460606B CN201280015231.9A CN201280015231A CN103460606B CN 103460606 B CN103460606 B CN 103460606B CN 201280015231 A CN201280015231 A CN 201280015231A CN 103460606 B CN103460606 B CN 103460606B
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length
pad
information
represent
code block
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CN103460606A (en
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郑鸿实
I.古铁雷斯
A.莫拉德
尹圣烈
梁贤九
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Samsung Electronics Co Ltd
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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
    • H03M13/11—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits using multiple parity bits
    • H03M13/1102—Codes on graphs and decoding on graphs, e.g. low-density parity check [LDPC] codes
    • H03M13/1148—Structural properties of the code parity-check or generator matrix
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
    • H03M13/11—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits using multiple parity bits
    • H03M13/1102—Codes on graphs and decoding on graphs, e.g. low-density parity check [LDPC] codes
    • H03M13/1148—Structural properties of the code parity-check or generator matrix
    • H03M13/116—Quasi-cyclic LDPC [QC-LDPC] codes, i.e. the parity-check matrix being composed of permutation or circulant sub-matrices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
    • H03M13/11—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits using multiple parity bits
    • H03M13/1102—Codes on graphs and decoding on graphs, e.g. low-density parity check [LDPC] codes
    • H03M13/1148—Structural properties of the code parity-check or generator matrix
    • H03M13/116—Quasi-cyclic LDPC [QC-LDPC] codes, i.e. the parity-check matrix being composed of permutation or circulant sub-matrices
    • H03M13/1165—QC-LDPC codes as defined for the digital video broadcasting [DVB] specifications, e.g. DVB-Satellite [DVB-S2]
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
    • H03M13/13—Linear codes
    • H03M13/15—Cyclic codes, i.e. cyclic shifts of codewords produce other codewords, e.g. codes defined by a generator polynomial, Bose-Chaudhuri-Hocquenghem [BCH] codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/68—Systems specially adapted for using specific information, e.g. geographical or meteorological information
    • H04H60/73—Systems specially adapted for using specific information, e.g. geographical or meteorological information using meta-information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/76—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/76—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet
    • H04H60/81—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself
    • H04H60/90—Wireless transmission systems

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  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Error Detection And Correction (AREA)
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Abstract

A kind of method and apparatus for signaling information to be encoded, sent and received in broadcast/communication system are provided.Methods described includes：Generation includes the signaling information of multiple；The number of bit based on signaling information and the number of encoder input information bits determine signaling information by the data for the code block being encoded into；Number based on code block splits every signaling information；The input information bits of each code block are built with part after the segmentation including every signaling information；Input information bits are encoded to each code block；And send each code block.

Description

Method and apparatus for sending and receiving control information in broadcast/communication system
Technical field
The present invention relates generally to the method and apparatus for sending and receiving control information in broadcast/communication system, and And control is sent and received in broadcast/communication system using low-density checksum (LDPC) code more particularly, to one kind The method and apparatus of information.
Background technology
Fig. 1 shows the frame being used in traditional broadcast/communication system.
Reference picture 1, the frame 101 including control information is sent and received in broadcast/communication system.Frame 101 includes leading 102nd, layer 1 (L1) signaling 103 and data 104.Herein, control information can be sent in leading 102 and L1 signalings 103.It is leading 102 be the signal of the time and Frequency Synchronization, frame boundary synchronization etc. for obtaining receiver.
As shown in Fig. 1, data 104 include physical layer channel (PLP) 108,109 and 110.Different modulation schemes and code Rate can independently be respectively used to PLP.
L1 signalings 103 indicate where send L1 signals, and including information before L1-（L1-pre information） 105, L1 configurable information 106 and L1 multidate informations 107.After the configurable information 106 of L1 and L1 multidate informations 107 are referred to as L1- Signaling information 120.In addition, L1, which can configure information 106, may be referred to as signaling after configurable L1-, and L1 multidate informations 107 can To be referred to as signaling after dynamic L1-.
Information 105 is included in the information that time domain seldom changes, such as cell identifier, network identifier, radio before L1- The position of the number of frequency, the length of frame and pilot subcarrier.L1, which can configure information 106, to be included than information before L1- 105 more The information often changed.The example that L1 can configure information 106 includes PLP identifiers, is used to send each PLP modulation methods Case and code rate information.
In Fig. 1, L1 multidate informations 107 include the information that can change in each frame, such as service number on sending According to the positions that send in the current frame of each PLP information (that is, on sending each PLP of service data in the current frame The information of the position of beginning and end).
In addition, signaling information 120 can be included in addition to it can configure information 106 and multidate information 107 after L1 after L1- Information.For example, after L1- signaling information 120 can include extension information, the CRC (CRC) as error detecting code, And L1 fillings.For example, in " Peterson, W.W.andBrown, D.T. (January1961) ' Cyclic Codes for Error Detection（Cyclic code for error-detecting）’Proceedings of the IRE49:228.doi: CRC use is described in 10.1109/JRPROC.1961.287814 ".
PLP1108, PLP2109 and PLP N110 are service datas, each send at least one broadcasting service channels. PLP1108, PLP2109 and PLP N110 include actual broadcast data.
Reference picture 1, the synchronous receiver that frame 101 is obtained by leading 102 are obtained by L1 signaling informations 103 The information of the scheme that is sent including data, the length of frame etc..The information that receiver is then based on obtaining is arrived by PLP108 PLP110 receives relevant data.
As described above, when the control information of such as signaling information is sent in broadcast/communication system, encoding control information Performance must be better than the performance of encoded digital information.Accordingly, there exist the efficient coding method to signaling information and its efficiently Coding/decoding method needs.
The content of the invention
Therefore, the present invention has been designed to solve to occur at least the above in the prior art, and is provided at least Following advantages.
The aspect of the present invention will provide a kind of coding method of the performance for the decoding for improving control information.
Another aspect of the present invention will provide a kind of coding staff for being used to improve the performance of the decoding of signaling information after L1- Method.
Another aspect of the present invention will provide a kind of side for being used to send and receive control information in broadcast/communication system Method and device.
According to an aspect of the present invention, there is provided a kind of method for being used to send signaling information in broadcast/communication system.Institute The method of stating includes：Generation includes the signaling information of multiple；Number and encoder the input information of bit based on signaling information The number of bit determines the signaling information by the number for the code block being encoded into；Number based on code block splits every signaling Information；The input information bits of each code block are built with part after the segmentation including every signaling information；Information ratio will be inputted Spy is encoded to each code block；And send each code block.
According to another aspect of the present invention, there is provided a kind of method for being used to receive signaling information in broadcast/communication system. Methods described includes：Receive the code block of signaling information；Obtain the number of bit or the code block of signaling information of signaling information Bit number；Decoding code block；The signaling information bits being extracted in after the segmentation that the code block of decoding includes；And will The state that signaling information bits are returned to before segmentation after the segmentation of extraction.
According to another aspect of the present invention, there is provided a kind of device for being used to send signaling information in broadcast/communication system. Described device includes：1 (L1) signaling information maker of layer, the signaling information of multiple is included for generating；Controller, for base Generation that signaling information will be encoded into is determined in the number of the bit of signaling information and the number of encoder input information bits The number of code block；Encoder, split every signaling information for the number based on code block, build the input letter of each code block Bit is ceased with part after the segmentation including every signaling information, and input information bits are encoded to each code block；And send Device, for sending each encoding block.
According to another aspect of the present invention, there is provided a kind of device for being used to receive signaling information in broadcast/communication system. Described device includes：Receiver, for receiving the code block of signaling information；Decoder, for decoding code block；Controller, use In the bit for obtaining signaling information number or signaling information code block number, and extraction is included in the code block of decoding In segmentation after signaling information bits；And reformer, for signaling information bits after segmentation to be recombined into before segmentation State.
Brief description of the drawings
From detailed description below in conjunction with the accompanying drawings, above and other of the invention aspect, feature and advantage will be more clear Chu, in accompanying drawing：
Fig. 1 shows the frame used in traditional broadcast/communication system.
Fig. 2 shows control information after traditional segmentation in broadcast/communication system.
Fig. 3 shows according to an embodiment of the invention for splitting control information and generating encoder input information bits Method；
Fig. 4 shows according to an embodiment of the invention, the generation encoder input letter in the case where not splitting control information Cease the method for bit；
Fig. 5 shows the method according to an embodiment of the invention for being used to build the input information bits for being input to encoder；
Fig. 6 shows the information bit according to an embodiment of the invention for being input to encoder；
Fig. 7 and Fig. 8 shows the information bit according to an embodiment of the invention for being input to encoder；
Fig. 9 shows the information bit according to an embodiment of the invention for being input to encoder；
Figure 10 be show it is according to an embodiment of the invention, for by dispensing device encode and send control information side The flow chart of method；
Figure 11 is the stream for showing method according to an embodiment of the invention, for receiving control information by reception device Cheng Tu；
Figure 12 is the block diagram for showing dispensing device according to an embodiment of the invention；And
Figure 13 is the block diagram for showing reception device according to an embodiment of the invention.
Embodiment
Describe various embodiments of the present invention in detail below with reference to accompanying drawings.It is described below with accompanying drawing, will omits The detailed description of function and configuration known to open, to avoid unnecessarily obscuring subject of the present invention.
Although LDPC Coding and description embodiments of the invention will be used below, the present invention could be applicable to other classes The coding of type.
Fig. 2 shows control information after traditional segmentation in broadcast/communication system.Specifically, Fig. 2 be illustrated that pair with It is included in that the corresponding L1 of signaling information after the L1- in L1 signaling informations can configure information 208 and L1 multidate informations 209 are compiled Code.
Reference picture 2, because L1 can configure information 208 and include in each frame not changing, but may change sometimes Information, so the configurable information of L1 in k-th frame can be identical with the configurable information of the L1 in (K+1) frame.When being included in When the configurable information of L1 in k-th frame is identical with the configurable information of the L1 being included in (K+1) frame, when reception (K+1) frame When, the L1 in the k-th frame that receiver can be had been received by by being included in can configure information to be known a priori by being included in (K+ 1) L1 in frame can configure information.Therefore, receiver can by using previously known L1 can configure information come improve including The performance of the decoding of L1 multidate informations in (K+1) frame.
More specifically, because receiver receives, the L1 being included in k-th frame can configure information and identical L1 can configure Information is sent in (K+1) frame, so when receiver decodes (K+1) frame, receiver, which has been known, is included in (K+1) L1 in frame can configure information.
In addition, even if when receiver decoding k-th frame failure, receiver can also receive by using in k-th frame L1 can configure information to improve the performance that the L1 of (K+1) frame can configure the decoding of information and L1 multidate informations.For example, when the When the configurable information of the L1 of K frames is identical with the configurable information of the L1 of (K+1) frame, even if receiver decoding is included in k-th frame L1 can configure information failure, receiver can also use log-likelihood ratio (LLR) value of acquisition decode (K+1) frame.
When using LDPC code, only coded information bits, its number are less than input information bits (coding list to encoder Position；The number of input information bits correspond to encoder input size) predetermined number.Therefore, in LDPC coding staffs In case, when the number of input information bits is more than the predetermined number of information bit, input information bits are divided.This Place, the information for being input to encoder is referred to as " input information bits ", and the code word exported after being encoded by encoder It is referred to as " code block（coded block）”.
Reference picture 2, with variable-length and corresponding to the configurable letters of L1 of signaling information after the L1- with size " a " 208 and L1 of breath multidate informations 209 are divided into two code blocks.The number of the bit of signaling information is more than coding after L1- During the predetermined number of device information bit, signaling information is divided into two code blocks after L1-.In this case, lead to Signaling information extraction a/2 parts are crossed after L1- to generate the first input information bits 210, by after L1- signaling information extract Remaining a/2 generates the second input information bits 212.First input information bits 210 include can configure information 208 as L1 A part L1 can configure information1It is (configurable1）210.It is, the first input information bits 210 only can configure including L1 Information 208.In addition, the second input information bits 212 include the configurable letters of L1 as the L1 parts that can configure information 208 Breath2(L1 can configure2) 211 and L1 multidate informations (L1 dynamics) 209.
It is assumed that the L1 being included in k-th frame can configure information 208 and the L1 being included in (K+1) frame can configure information 208 is identical.Therefore, when receiver receives k-th frame and decode L1 can configure information 208 it is successful when, the advantages of existing, is, so Receiver need not decode the first generation code block of the first input information bits 210 included in (K+1) frame afterwards.However, including The second generation code block of two input information bits 212 only includes the configurable letters of L1 as the L1 parts that can configure information 208 Breath2(configurable 2) 211.Therefore, although receiver knows that L1 can configure information 208, the number pair of the bit of Given information Significantly improved in receiver not big enough for the performance of the decoding of L1 multidate informations 209.
According to an embodiment of the invention, L1 as shown in Figure 2 can configure information 208 and be included in the first input information ratio In each in special and the second input information bits.
In addition, in LDPC encoding schemes, positioned at the decoding performance of the information of the forward part of encoder input information bits Decoding performance often than the information positioned at the rear part of encoder input information bits is good.Therefore, when using LDPC, according to Embodiments of the invention, it is expected L1 multidate informations, i.e. the Information locating that can change in each frame is in input information bits Forward part to improve the decoding performance of receiver.
Fig. 3 shows according to an embodiment of the invention for splitting control information and generating encoder input information bits Method.Specifically, in figure 3, partition value is equal to 2, and it implies the coding units according to the input size corresponding to encoder, will The L1 signaling informations (especially, signaling information after L1-) being encoded are divided into the first input information bits and the second input information ratio Spy, and the first input information bits and the second input information bits are input into encoder.Therefore, when partition value is equal to 2, The input information bits encoded by encoder are divided into two code blocks, and so latter two code block exports from encoder.
Reference picture 3, L1 can configure information 301 and be divided into two parts according to partition value 2, i.e. L1 can configure information1 (L1 can configure1) the configurable information of 303 and L12(L1 can configure2)304.In addition, L1 multidate informations 302 are always according to the quilt of partition value 2 It is divided into two parts, i.e. L1 multidate informations1(L1 dynamics1) 305 and L1 multidate informations2(L1 dynamics2)306。
In addition, transmitter can configure information from the L1 of separation1(L1 can configure1) 303 and L1 multidate informations1(L1 dynamics1) 305 the first encoder input information bits 310 of structure, and can configure information from L12(L1 can configure2) 304 and L1 dynamic letters Breath2(L1 dynamics2) 306 structure second encoder input information bits 320.Transmitter inputs the first volume to LDPC encoder first Each in code device input information bits 310 and second encoder input information bits 320 is to generate two code blocks. In one input information bits 310, L1 multidate informations1305, which are arranged in L1, can configure information1Before 303.In similarly, second In input information bits 320, L1 multidate informations2306, which are arranged in L1, can configure information2Before 304.
Alternatively, L1 multidate informations and L1 can configure information and can switch locations.For example, L1 can configure information1303 can be arranged in L1 multidate informations1Before 305, and L1 can configure information2304 can be arranged in L1 multidate informations2Before 306.
In addition, even if when encoder input information bits are not divided, L1 multidate informations 302 can also be arranged in L1 Before configurable information 301.It is, even if the length of signaling information is less than the pre- of LDPC encoder information bit after L1 First ascertain the number, and therefore, there is no need to split L1- after signaling information when, L1 multidate informations 302 still can be arranged in L1 can Before configuration information 301.
Fig. 4 show it is according to an embodiment of the invention, for building LDPC in the case of signaling information after not splitting L1- The method of encoder input information bits.
Reference picture 4, inputted when by can configure information 410 and L1 multidate informations 411 including L1 to build LDPC encoder During information bit, if located in the bit of the forward part of input information bits decoding performance than positioned at input information bits The performance of the decoding of the bit of part is good afterwards, then by by L1 multidate informations 411 be arranged in L1 can configure information 410 before come Input information bits are built, as represented by reference to numeral 420.
Fig. 5 shows according to an embodiment of the invention, the method for building the input information bits for being input to encoder. Specifically, Fig. 5 shows to be included in multi-disc control information after L1- in signaling information according to partition value 2 to split.
Reference picture 5, signaling 550 includes the configurable information 500 of L1, the L1 dynamics of present frame after being input to the L1- of encoder Information（Or " dynamic, present frame " or " being used for signaling after the dynamic L1- of present frame "）501, and the L1 dynamic letters of next frame Breath (or " dynamic, next frame " or " being used for signaling after the dynamic L1- of next frame ") 502, wherein, the L1 multidate informations of next frame 502 be the L1 multidate informations for the frame that will be then sent.Specifically, when present frame is k-th frame, under being sent in k-th frame The L1 multidate informations 502 of one frame include the L1 multidate information identical values with that will be sent in (K+1) frame.The L1 of next frame is moved State information 502 is selective information, and transmitter can notify receiver to whether there is for next by signaling before L1- The L1 multidate informations of frame.For example, when the mark L1_REPETITION_FLG in signaling before L1- has value 1, this instruction is present L1 multidate informations for next frame.However, when L1_REPETITION_FLG has value 0, this instruction is not present for next The L1 multidate informations of frame.
L1 can configure every in the L1 multidate informations 502 of information 500, the L1 multidate informations 501 of present frame and next frame One is divided into 2 parts.Specifically, the configurable information 500 of L1 is divided into the configurable information of L11(L1 can configure1) 504 Hes L1 can configure information2(L1 can configure2) 505, as represented by reference to numeral 510.The L1 multidate informations 501 of present frame are divided Into the L1 multidate informations of present frame1(the L1 dynamics of present frame1) 506 and present frame L1 multidate informations2(L1 of present frame is moved State2) 507, as represented by reference to numeral 515.The L1 multidate informations 502 of next frame are divided into the L1 multidate informations of next frame1 (the L1 dynamics of next frame1) 508 and next frame L1 multidate informations2(the L1 dynamics of next frame2) 509, such as by reference to numeral 520 expressions.
During coding, L1 can configure information1504th, the L1 multidate informations of present frame1506, and the L1 dynamics of next frame Information1508 are built as the first input information bits 530.In addition, L1 can configure information2505th, the L1 multidate informations of present frame2507, and the L1 multidate informations of next frame2509 are built as the second input information bits 535.
L1 can configure information1504 are arranged on the decline of the first input information bits 530, are moved in the L1 of present frame State information1506 and the L1 multidate informations of next frame1After 508.
Similarly, L1 can configure information2505 are located at the decline of the second input information bits 535, in the L1 of present frame Multidate information2507 and the L1 multidate informations of next frame2After 509.
As described above, the first input information bits 530 of structure and the second input information bits 535 are with positioned at information bit Forward part bit decoding performance it is more preferable based on, as in being encoded in LDPC.Therefore, L1 can configure information 500, The L1 multidate informations 501 of present frame and the L1 multidate informations 502 of next frame are defeated in the first input information bits 530 and second Decoding performance can be depended on by entering the actual location in information bit 535, for example, the type based on the coding used and change.
In addition, as with reference to Figure 4 described above, even if when that need not split, it is contemplated that position when using LDPC encoding schemes More preferable in the decoding performance of the bit of the forward part of input information, the L1 multidate informations of present frame can be located at input information bits Foremost portion, and L1 can configure information can be located at input information bits decline.
Therefore, whether application segmentation, can be in the coding in view of the input information bits by LDPC encoder Determine that L1 multidate informations and L1 can configure the positioning of information in the case of performance.It is, as described above, when positioned at input letter When the decoding performance of the bit of the rear part of breath bit is better than the decoding performance of the bit of the forward part positioned at input information bits, L1, which can configure information, can be arranged in the forward part of input information bits, and L1 multidate informations can be arranged in input information ratio Special rear part.
It can independently from each other be encoded/decode in addition, L1 can configure information and L1 multidate informations.Specifically, as above institute State, when the L1 multidate informations of L1 multidate information of the L1 multidate informations including present frame and next frame, optional present frame moves Each in the L1 multidate informations of state information and next frame is divided, and from L1 multidate informations after the segmentation of present frame1With L1 multidate informations after the segmentation of next frame1Middle build is input to encoder, the first input information ratio corresponding to unit It is special.In addition, from L1 multidate informations after the segmentation of present frame2With L1 multidate informations after the segmentation of next frame2Structure is input to encoder , the second input information bits corresponding to a unit.In addition, whether need to split, the L1 multidate informations of present frame The forward part of input information bits is arranged in, and the L1 multidate informations of next frame are arranged in the rear part of input information bits.
Fig. 6 shows the embodiment inputted according to the present invention, is input to the segmentation of the input information bits of encoder.Scheming In 6, partition value is Npost_FEC_Block。
Reference picture 6, signaling information 650 after L1-, i.e. be input to the information bit of encoder and include L1 and can configure information 600, the L1 multidate informations 601 of present frame, the L1 multidate informations 602 of next frame, extension information 603, CRC (CRC) Information 604 and L1 fillings（padding）Bit 605.CRC information 604 includes the parity check bit of CRC code, and wherein receiver makes With the parity check bit come determine L1 can configure information 600, the L1 multidate informations 601 of present frame, next frame L1 dynamic believe Whether mistake is had occurred that in breath 602 and extension information 603.Although not shown in FIG. 6, can use multiple CRC.Specifically, to those skilled in the art it is apparent that CRC number and its position can be changed.
The length that L1 can configure information 600 is KL1_conf, the length of the L1 multidate informations 601 of present frame is KL1_dyn,c, under The length of the L1 multidate informations 602 of one frame is KL1_dyn,n, the length of extension information 603 is KL1_ext, and CRC604 length is Ncrc.Work as KL1_dyn,n, i.e. when the length of the L1 multidate informations 602 of next frame is equal to 0, the L1 that next frame is not used in the instruction of 0 value is moved State information 602.Work as KL1_extDuring equal to 0, extension information 603 is not used in this instruction.Similarly, N is worked ascrcDuring equal to 0, this instruction is not Use CRC code.
KL1_conf、KL1_dyn,cAnd KL1_dyn,nIn each can be expressed as PLP number function.Otherwise, Ke Yitong Predetermined signaling is crossed to know KL1_conf、KL1_dyn,cAnd KL1_dyn,n.For example, each representing the parameter of length, such as represent KL1_conf L1_POST_CONF_SIZE, represent KL1_dyn,cL1_POST_DYN, CURRENT_SIZE, represent KL1_dyn,n L1_POST_DYN, NEXT_SIZE, and represent that the L1_POST_EXT_SIZE of length of extension information 603 can pass through Information 105 is sent before L1-.
When Bose Chaudhuri Hocquenghem (BCH) code is connected with LDPC code, and the BCH being connected with LDPC code Code is used for L1 signaling informations, and the length of the input bit of BCH code is KbchWhen, it can be counted using following equation (1) Calculate the N of the number of the code block corresponding to L1 signaling informationspost_FEC_Block.Substantially, Npost_FEC_BlockIt is L1 signaling informations ratio The number for the multi-disc information that spy is divided into.When considering that BCH code is connected with LDPC code, by using the input ratio of BCH code Special length KbchCarry out the number of calculation code block.However, when LDPC code is only used only, can be by using the defeated of LDPC code Enter the length K of bitldpcRather than KbchCarry out the number of calculation code block.
In equation (1), Kpost_ex_padIt is that L1 can configure information 600, L1 multidate informations 601, the next frame of present frame L1 multidate informations 602, extend the sum of information 603 and the length of CRC information 604.Kpost_ex_pad=KL1_conf+KL1_dyn,c+ KL1_dyn,n+KL1_ext+Ncrc.It is, Kpost_ex_padBe exclude filling field L1- after signaling bit number.In equation (1) in,Represent the minimum integer more than x.For example,
N based on the number corresponding to code blockpost_FEC_Block, can be calculated by using following equation (2) corresponding In the K for the length for inserting zero bitpad。
In equation (2),Represent the minimum integer more than x.For example,It can omit corresponding to insertion The K of the length of zero bitpad。
Above with reference to described in Fig. 3 and Fig. 5, when passing through Npost_FEC_BlockSegmentation L1 can configure information 600, the L1 of present frame is moved State information 601, the L1 multidate informations 602 of next frame, extension information 603, CRC604 and L1 fillings 605 each when, can be with The length of each in segmentation is calculated using following equation (3) to (6).
Specifically, it is K that can be calculated by using equation (3) for lengthL1_confL1 can configure information 600 correction COEFFICIENT KL1_conf_PAD.It is, when L1 can configure the length K of informationL1_confThe number of the code block for segmentation is not corresponding to Purpose Npost_FEC_BlockMultiple when, KL1_conf_PADIt is correction coefficient.
In equation (3),Represent less than x maximum integer.For example,KL1_conf_PADIt is to cause i-th (i=1,…,(Npost_FEC_Block- 1)) L1 among encoder input information bits can configure informationi600b length isAnd cause (Npost_FEC_Block) L1 among encoder input information bits can configure Information 600c length isValue.
For example, work as KL1_conf=299 and Npost_FEC_BlockWhen=2,
K with value 1L1_conf_PADThe L1 among the first encoder input information bits is caused to can configure information1Length It is 149, and causes the L1 among second encoder input information bits to can configure information2Length be 149+1=150.These Condition is used for avoiding extra zero padding.
To calculate can be K for length as shown in Figure 6 by using equation (4)L1_dyn,cThe L1 of present frame move The length K of the correction coefficient of state information 601L1_dyn,c_PAD.As the length K of the L1 multidate informations 601 of present frameL1_dyn,cIt is not phase Ying Yu is used for the N of the number for the code block splitpost_FEC_BlockMultiple when, KL1_dyn,c_PADIt is correction coefficient.
In equation (4),Represent less than x maximum integer.
To calculate can be K for length as shown in Figure 6 by using equation (5)L1_dyn,nThe L1 of next frame move The length K of the correction coefficient of state information 602L1_dyn,n_PAD.As the length K of the L1 multidate informations of next frameL1_dyn,nIt is not corresponding to N for the number of the code block of segmentationpost_FEC_BlockMultiple when, KL1_dyn,n_PADIt is correction coefficient.
In equation (5),Represent less than x maximum integer.
As described above, not always use the L1 multidate informations 602 of next frame.In this case, it is natural that KL1_dyn,n0 should be equal to.When such as being arrived in equation (3) in equation (5), according to Npost_FEC_BlockTo split with length KL1_ext's Extension information 603, there is length NcrcCRC604 and there is length KpadL1 filling 605 in each when, can make The length K of the correction coefficient for extending information 603+CRC604+L1 fillings 605 is calculated with following equation (6)L1_ext_PAD。
In equation (6), when the length of extension information 603, CRC604 and L1 fillings 605 and it is not corresponding to use In the N of the number of the code block of segmentationpost_FEC_BlockMultiple when, KL1_ext_PADIt is correction coefficient, andRepresent less than x Maximum integer.As described above, not always use Kpad, and in this case, KpadEqual to 0.In addition, NcrcRepresent CRC Bit.
Information is inputted with the i-th encoder to calculate using the value calculated using equation (1) to (6) by equation (7) definition The corresponding K of the number of bit 670sig(i) process.
In equation (7),Represent less than x maximum integer.For example,
(N can be calculated by using equation (8)post_FEC_Block) encoder input information bits 680 number.
In equation (8),Represent less than x maximum integer.
Although the segmentation performed above causes in Ksig(i)(i=1,...,(Npost_FEC_Block- 1)) and Ksig (Npost_FEC_Block) between length difference be present, but segmentation can be performed to cause K is not presentsig(i)(i=1,..., (Npost_FEC_Block- 1)) and Ksig(Npost_FEC_Block) between length difference.In addition, as set forth above, it is possible to according to the CRC used Number and its position make a change in the equations.
For example, it can configure information 600, the multidate information 601 of present frame and next frame when CRC code is applied to L1 During each in multidate information 602, KL1_conf、KL1_dyn,cAnd KL1_dyn,nL1 can be included respectively and can configure information 600 The number of CRC bits, the multidate information 601 of present frame CRC bits number, and the number of the CRC bits of next frame 602。
In figure 6, reference numeral 690 represents the first encoder input information bits to (Npost_FEC_Block) encoder is defeated Enter information bit, the whole encoder input information bits that will be represented using equation (1) to equation (8) by reference to numeral 650 The first encoder input information bits are partitioned into (Npost_FEC_Block) encoder input information bits.Although generally by compiling Code device performs cutting operation, but when encoder includes interleaver, interleaver can be defeated to the encoder after all segmentations Enter information bit (that is, L1 signaling informations) to be interleaved (segmentation).
More specifically, reference numeral 690 represents：First encoder input information bits 660 include passing through basis Npost_FEC_BlockThe information bit for carrying out partition encoding device input information bits 600,601,602,603,604 and 605 and obtaining (the L1 filling bits after segmentation) 600a, 601a, 602a, 603a, 604a and 605a.Reference numeral 690 represents：I-th coding Device input information bits 670 are included by according to Npost_FEC_BlockCome partition encoding device input information bits 600,601,602, 603rd, 604 and 605 and obtain information bit 600b, 601b, 602b, 603b, 604b and 605b (it is different from encoder Input information bits 650).Reference numeral 690 represents：(Npost_FEC_Block) encoder input information bits 680 include pass through According to Npost_FEC_BlockCarry out partition encoding device input information bits 600,601,602,603,604 and 605 and what is obtained believing Cease last segmentation 600c, 601c, 602c, 603c, 604c and 605c in bit.
Therefore, the receiver decoding for receiving input information bits 690 passes through to encoder input information bits 660, coding Device input information bits 670 and encoder input information bits 680 encode the code block of acquisition.Then, receiver will L1 multidate information bit 601a, 601b and 601c after the segmentation of present frame, L1 multidate informations bit after the segmentation of next frame 602a, 602b and 602c, L1 can configure information bit 600a, 600b and 600c after segmentation, extend information bit after segmentation 603a, 603b and 603c, CRC bits 604a, 604b and 604c after segmentation, and segmentation after L1 filling bit 605a, 605b and 605c reconfigure as segmentation before state.Therefore, receiver can recover signaling information after original L1-.
When reception device according to an embodiment of the invention knows that L1 can configure the length K of information 600L1_conf, present frame L1 multidate informations 601 length KL1_dyn,c, and the length K of the L1 multidate informations 602 of next frameL1_dyn,nWhen, reception device Signaling information after L1- can easily be recovered.In this respect, dispensing device according to an embodiment of the invention can be sent KL1_conf、KL1_dyn,cAnd KL1_dyn,nValue.Because KL1_conf、KL1_dyn,cAnd KL1_dyn,nEach value can be expressed as PLP number Purpose function, if so dispensing device sends PLP number, reception device can recover signaling information after L1-.Therefore, For example, when dispensing device figure 1 illustrates L1- before information 105 include corresponding to PLP number NUM_PLP (PLP's Number) information when, reception device can be efficiently received signaling information after L1-.
Even if when not performing segmentation, as shown in Figure 4, if dispensing device sends PLP number, even if when L1 is moved When state information 411 is sent before L1 can configure information 410, reception device is believed after can also recovering L1- using PLP number Make information.If in addition, the L1 multidate informations sent in k-th frame are identical with the L1 multidate informations sent in (K+1) frame, Then when information after the L1- that reception device is recovered in (K+1) frame, no matter the L1 multidate informations in reception device decoding k-th frame Whether succeed, reception device can use the L1 multidate informations of k-th frame.
Fig. 7 and Fig. 8 shows the information bit according to an embodiment of the invention for being input to encoder.In the figure 7, L1 dynamics Information is positioned in after the configurable information of L1.
Reference picture 7, the length that L1 can configure information 721 is KL1_conf, the length of the L1 multidate informations 722 of present frame is KL1_dyn,c, the length of the L1 multidate informations 723 of next frame is KL1_dyn,n, the length of extended field 724 is KL1_ext, and CRC725 length is Ncrc。
The length that L1 can configure information 721 can be obtained using parameter L1_POST_CONF_SIZE or PLP number KL1_conf.Parameter (L1_POST_CONF_SIZE or PLP number) can be separately or cooperatively sent in signaling before L1-.Can be with The length of the L1 multidate informations 722 of present frame is obtained using parameter L1_POST_DYN, CURRENT_SIZE or PLP number KL1_dyn,c.Parameter can be separately or cooperatively sent in signaling before L1-.Parameter L1_POST_DYN, NEXT_SIZE can be used Or PLP number obtains the length K of the L1 multidate informations 723 of next frameL1_dyn,n.Can before L1- in signaling separately or cooperatively Send parameter.Parameter L1_POST_EXT_SIZE can be used to obtain the length K of extended field 724L1_ext.CRC725 length NcrcCan be fixed, for example, 32.
Reference picture 7, signaling 720 includes the length according to signaling after L1- after L1-, is sent out by one or more LDPC blocks The bit of the variable number sent.LDPC blocks have to look like with code block identical.
The N corresponding with the number for the LDPC blocks of signaling 720 after L1- is determined using equation (9)post_FEC_Block。
In equation (9), when Kbch is more than or equal to Kpost_ex_padWhen, Npost_FEC_BlockEqual to 1.However, work as KBch is smallIn Kpost_ex_padWhen, Npost_FEC_BlockIt isValue A is to cause to represent the information ratio in the code block after splitting The K of special numbersigLess than or equal to KbchCorrection coefficient, and its can according to the number of the type of divided signal and Change.For example, when L1 can configure information 721, the L1 multidate informations 722 of present frame, next frame 723 L1 multidate informations and When each extended in information 724 is divided, then each in 4 information is divided.Therefore, value A can be 3.
When using the L1 multidate informations 723 of next frame not in any frame, value A can be 2, but for the effect of system Rate, value A can be fixed as 3.
In equation (9),Represent the minimum integer equal to or more than x, and KbchValue represent BCH information bits Number.
In the above case said, when BCH code is connected with LDPC code, the length K of the input bit of BCH code is usedbchTo count Calculate the number of code block.However, when LDPC code is only used only, can be by using the length K of the input bit of LDPC codeldpc Rather than KbchCarry out the number of calculation code block.
Kpost_ex_padBeing can be by by CRC725 length NcrcPlus respectively represent L1 can configure information 721 length, The length of the length of the L1 multidate informations 722 of present frame, the length of the L1 multidate informations 723 of next frame and extended field 724 Parameter L1_POST_CONF_SIZE, L1_POST_DYN, CURRENT_SIZE, L1_POST_DYN, NEXT_SIZE and L1_ POST_EXT_SIZE's and obtain.In addition, Kpost_ex_padRepresent to exclude corresponding to the L1_PADDING726's for filling field The number of the bit of signaling after L1-.Can the maximum length based on signaling after L1-, for example, 32 determine CRC length Ncrc。 In which case it is possible to use following equation (10) calculates the KL1_ of the length corresponding to field name L1_PADDING726 PADDING。
KL1_PADDING=KL1_conf_PAD+KL1_dyn,c_PAD+KL1_dyn,n_PAD+KL1_ext_PAD…(10)
In equation (10), KL1_conf_PAD represents that L1 can configure the length of the filling field of information, KL1_dyn,c_PADTable Show the length of the filling field of the L1 multidate informations of present frame, KL1_dyn,n_PADRepresent the filling word of the L1 multidate informations of next frame The length of section, and KL1_ext_PADRepresent the length for including the filling field of CRC725 extended field 724.It can use following Equation (11) to (14) come calculate as filling field L1_CONF_PAD727, L1_DYN, C_PAD728, L1_DYN, N_ The length of each in PAD729 and L1_EXT_PAD730.
Arrived in equation (11) in (14), KL1_conf、KL1_dyn,c、KL1_dyn,nAnd KL1_extIt is to use parameter L1_POST_ respectively CONF_SIZE, L1_POST_DYN, CURRENT_SIZE, L1_POST_DYN, NEXT_SIZE and L1_POST_EXT_SIZE The value of acquisition.These parameters represent that L1 can configure the length of information, the length of L1 multidate informations of present frame, next frame respectively The length of L1 multidate informations and the length of extended field.NcrcCorresponding to the number of CRC bits, for example, 32.When indicating whether When being arranged to 0 using the L1_REPETITION_FLAG of the L1 multidate informations of next frame, the length of the L1 multidate informations of next frame Spend KL1_dyn,nLength be 0.
Following equation (15) can be used to define relative with the final lengths of signaling after the whole L1- including filling field The K answeredpost。
Kpost=Kpost_ex_pad+KL1_PADDING…(15)
In which case it is possible to use following equation (16) defines and in each Npost_FEC_BlockInformation ratio in block The corresponding K of special numbersig。
As shown in Figure 7, to obtain more preferable performance, L1 can configure information (signaling after configurable L1) 721, the L1 of present frame The L1 multidate informations of multidate information (being used for signaling after the dynamic L1 of present frame) 722 and next frame (are used for the dynamic of next frame Signaling after L1) 723 it will be distributed as homogeneously as possible in all forward error correction (FEC) blocks.
Specifically, it is (configurable that the input bit of the first generation code block shown in Fig. 7 includes the configurable information of the first L11Or Conf_1) 731, the first L1 multidate informations (dynamic, the present frame of present frame1Or D, C_1) 732, the first L1 of next frame moves State information (dynamic, next frame1Or D, N_1) 733 and first extended field (extension 1 or E, C_1) 734.First L1 can match somebody with somebody Confidence breath 731 includes L1 and can configure among the bit of information 710Bit.Present frame First L1 multidate informations 732 are included among the bit of the L1 multidate informations 722 of present frame Bit.First L1 multidate informations 733 of next frame are included among the bit of the L1 multidate informations 723 of next frameBit.Bit and CRC725 of first extended field 734 including extended field 724 Among bitBit.
According to an embodiment of the invention, the bit of the extended field 724 of signaling and its CRC725 bit all wrap after L1- Include in the first extended field 734 among the input bit of first generation code block.By identical method from first generation code block to (Npost_FEC_Block- 1) code block performs above-mentioned structure.
(Npost_FEC_Block) information bit in code block includes N to can configure information (configurableNOr Conf_N) 739th, N L1 multidate informations (dynamic, the present frame of present frameNOr D, C_N) 740, the N L1 multidate informations of next frame (dynamic, next frameNOr D, N_N) 741, N extended fields (extensionNOr E, C_N) 742 and filling field, such as L1_ CONF_PAD727, L1_DYN, C_PAD728, L1_DYN, N_PAD729 and L1_EXT_PAD730.N can configure information 739 Among bit including can configure information 710Bit.The N L1 of present frame Multidate information 740 is included among the bit of the L1 multidate informations 722 of present frameThan It is special.The N L1 multidate informations 741 of next frame are included among the bit of the L1 multidate informations 723 of next frameBit.N extended fields 742 include extension word Bit.
According to an embodiment of the invention, the bit of the extended field 724 of signaling and its CRC725 bit all wrap after L1- Include in the first extended field 734 among the input bit of first generation code block.KL1_ext_PAD is the extension of signaling after L1- The length of the filling field of the bit of field 724 and its CRC725 bit.0 is inserted into filling field.Furthermore, it is possible to Change the position of filling field.
For example, being stuffed entirely with field can be located at the ending of coding input, as shown in Figure 8.
According to an embodiment of the invention, when parameter L1_POST_EXT_SIZE is set initially to the length that includes extended field The value of degree and CRC length, the length without being set to only extended field, when then being sent, KL1_extCan be with It is seen as by by the length and N of extended fieldcrcIt is added the value obtained.In such a case, it is possible to delete whole Ncrcs。
Fig. 9 shows the information bit according to an embodiment of the invention for being input to encoder.
Reference picture 9, the length that L1 can configure information 921 is KL1_conf, the length of the L1 multidate informations 922 of present frame is KL1_dyn,c, the length of the L1 multidate informations 923 of next frame is KL1_dyn,n, the length of extended field 924 is KL1_ext, and CRC925 length is Ncrc。
The length of parameter L1_POST_CONF_SIZE or the configurable information 921 of number acquisition L1 using PLP can be used KL1_conf.The length K of the L1 multidate informations 922 of present frameL1_dyn,cParameter L1_POST_DYN, CURRENT_SIZE can be used Or obtained using PLP number.Parameter L1_POST_DYN, NEXT_SIZE or next using PLP number acquisition can be used The length K of the L1 multidate informations 923 of frameL1_dyn,n.Parameter L1_POST_EXT_SIZE can be used to obtain the length of extended field 924 Spend KL1_ext.CRC925 length Ncrc can be fixed, for example, 32.In this case, although the L1 dynamics of next frame The length of information 923 and the length of extended field 924 or CRC length and a parameter can be expressed as, but for this Exist while parameters separated is assumed for the sake of the convenience of the description of invention.
Reference picture 9, signaling 920 includes the length according to signaling after L1- after L1-, passes through one or more LDPC blocks and sends Variable number bit.LDPC blocks have to look like with the code block identical shown in Fig. 9.
Determined using following equation (17) corresponding with the number for the LDPC blocks of signaling 920 after L1- Npost_FEC_Block。
In equation (17), work as KbchMore than or equal to Kpost_ex_padWhen, Npost_FEC_BlockEqual to 1.However, work as KbchIt is small In Kpost_ex_padWhen, Npost_FEC_BlockIt isValue A is the information in the code block after causing as segmentation The K of the number of bitsigLess than or equal to KbchCorrection coefficient, and it can be according to the number of the type of divided signaling And change.
For example, when L1 can configure information 921, the L1 multidate informations 922 of present frame, next frame L1 multidate informations 923, with And each in extension information 924, when being divided, each in 3 information is divided.Therefore, value A can be 2.
In equation (17),The minimum integer equal to or more than x is represented, and Kbch value represents BCH information ratios Special number.When BCH code is connected with LDPC code, the length K of the input bit of BCH code is usedbchCarry out the number of calculation code block Mesh.However, when LDPC code is only used only, can be by using the length K of the input bit of LDPC codeldpcRather than KbchCome The number of calculation code block.
Kpost_ex_padBeing can be by by CRC925 length NcrcPlus respectively represent L1 can configure information 921 length, The length of the length of the L1 multidate informations 922 of present frame, the length of the L1 multidate informations 923 of next frame and extended field 924 Parameter L1_POST_CONF_SIZE, L1_POST_DYN, CURRENT_SIZE, L1_POST_DYN, NEXT_SIZE and L1_POST_EXT_SIZE's and obtain.In addition, Kpost_ex_padRepresent to exclude the L1_PADDING926 corresponding to filling field L1- after signaling bit number.CRC length N can be determined based on the maximum length of signaling after L1-crc。
Following equation (18) can be used to calculate corresponding with field name L1_PADDING926 length KL1_PADDING。
KL1_PADDING=KL1_conf_PAD+KL1_dyn,c_PAD+KL1_ext_PAD…(18)
In equation (18), KL1_conf_PADRepresent that L1 can configure the length of the filling field of information, KL1_dyn,c_PADRepresent to work as The length of the filling field of the L1 multidate informations of previous frame, and KL1_ext_PADRepresent to include the L1 multidate informations 923 of next frame with And the length of the filling field of CRC925 extended field 924.Work can be calculated respectively using equation (19), (20) and (21) To fill L1_CONF_PAD927, L1_DYN of field, C_PAD928 and L1_EXT_PAD930 length.
Arrived in equation (19) in (21), KL1_conf、KL1_dyn,c、KL1_dyn,nAnd KL1_extIt is that can use parameter L1_ respectively POST_CONF_SIZE, L1_POST_DYN, NEXT_SIZE and L1_POST_EXT_SIZE obtain value.These parameters point Not Biao Shi L1 can configure the length of information 921, the length of L1 multidate informations 922 of present frame, the L1 multidate informations 923 of next frame Length and extended field 924 length.Corresponding to the N of the number of CRC bitscrcCan be, for example, 32.
It is next when indicating whether to be arranged to 0 using the L1_REPETITION_FLAG of the L1 multidate informations of next frame The length K of the L1 multidate informations of frameL1_dyn,nLength be equal to 0.In this case, the length of the multidate information of next frame and expansion Open up field length and a parameter can be expressed as.For example, (KL1_dyn,n+KL1_ext) K can be expressed asL1_dyn,n,ext, and And the gain of parameter K for each representing respective length can be usedL1_dyn,n,ext(L1_POST_DYN,N,EXT_SIZE)。
Following equation (22) can be used to define relative with the final lengths of signaling after the whole L1- including filling field The K answeredpost。
Kpost=Kpost_ex_pad+KL1_PADDING…(22)
Following equation (23) definition and each N can be usedpost_FEC_BlockThe number of information bit in block is corresponding Ksig。
As shown in Figure 9, in order to obtain more preferable performance, L1 can configure information (signaling after configurable L1) 921, present frame L1 multidate informations (being used for signaling after the dynamic L1 of present frame) 922, the L1 multidate informations of next frame (are used for the dynamic L1 of next frame Signaling afterwards) 923 and extended field 924 will be distributed as homogeneously as possible in all FEC Blocks.
Specifically, it is (configurable to include the configurable information of the first L1 for the input bit of first generation code block1Or Conf_1) 931, The first L1 multidate informations (dynamic, the present frame of present frame1Or D, C_1) 932 and (the extension of first extended field1Or E, C_ 1)934.First L1, which can configure information 931, to be included among the bit of the configurable information 910 of L1Than It is special.First L1 multidate informations 932 of present frame are included among the bit of the L1 multidate informations 922 of present frameBit.First extended field 934 includes the bit of the L1 multidate informations 923 of next frame, extension Among the bit of the bit of field 924 and CRC925 bit Bit.By identical method from first generation code block to (Npost_FEC_Block- 1) code block performs above-mentioned structure.
(Npost_FEC_Block) information bit in code block includes N to can configure information (configurableNOr Conf_N) 939th, N L1 multidate informations (dynamic, the present frame of present frameNOr D, C_N) 940, N extended fields (extensionNOr E, C_N) 942 and filling field, such as L1_CONF_PAD927, L1_DYN, C_PAD928 and L1_EXT_PAD930. Npost_FEC_BlockN, which can configure information 939, to be included among the bit of configurable information 910Bit.The N L1 multidate informations 940 of present frame include current Among the bit of the L1 multidate informations 922 of frameBit.N Extended field 942 includes bit, the bit of extended field 924 and the CRC925 bit of the L1 multidate informations 923 of next frame CentralBit.0 is inserted into Fill field.In addition, the position of filling field can change.For example, filling field can be located at the ending of coding input.
According to another embodiment of the present invention, the L1 multidate informations 722 when present frame, next frame L1 multidate informations 723, Extended field 724 and CRC725 perform segmentation when being considered as a field.In this case, for the L1 of next frame Multidate information 723 and extended field 724 and CRC725, the information that can not be obtained in the current frame in priority of use previous frame, And signaling can include or can not include the L1 multidate informations 732 and extended field 724 of next frame after L1-.Therefore, it is next L1 multidate informations 723, extended field 724 and the CRC725 of frame are considered a field and split to simplify, Ran Houke To perform segmentation.
In this case, correction coefficient A can be equal to 1 in equation (17).Based on what is calculated using equation (17) Npost_FEC_BlockValue, can use equation (24) calculated field L1_PADDING726 length KL1_PADDING。
KL1_PADDING=KL1_conf_PAD+KL1_ext_PAD…(24)
In equation (24), KL1_conf_PADRepresent that L1 can configure the length of the filling field of information, KL1_ext_PADRepresent bag Include the filling word of the extended field 724 of the L1 multidate informations 722 of present frame, the L1 multidate informations 723 of next frame and CRC725 The length of section.Equation (25), (26) can be used to calculate respectively as the L1_CONF_PAD's and L1_EXT_PAD for filling field Length.
In equation (25) and (26), KL1_conf、KL1_dyn,c、KL1_dyn,nAnd KL1_extIt is to use parameter L1_POST_ respectively CONF_SIZE, L1_POST_DYN, CURRENT_SIZE, L1_POST_DYN, NEXT_SIZE and L1_POST_EXT_SIZE meters The value of calculation.These parameters represent respectively L1 can configure the length of information 721, present frame L1 multidate informations 722 length, next The length of the L1 multidate informations 723 of frame and the length of extended field 724.Corresponding to the N of the number of CRC bitscrcCan be, For example, 32.
It is next when indicating whether to be arranged to 0 using the L1_REPETITION_FLAG of the L1 multidate informations of next frame The length K of the L1 multidate informations of frameL1_dyn,nLength be equal to 0.In this case, the length of the multidate information of present frame, under The length of the multidate information of one frame and the length of extended field and a parameter can be expressed as.
According to another embodiment of the present invention, signaling does not include extended field 724 after L1-.In this case, KL1_ext Value become 0, and only bit is included in and is input to information bit after the segmentation of code block after the segmentation of crc field 725 In central extended field 734,738 and 742.In this case, the number of bit is probably very after the segmentation of crc field Small, so as to split extended field 724 and crc field 725 first and then after the extended field 724 after segmentation and segmentation Crc field 725 builds extended field 734,738 and 742 may be poorly efficient.Therefore, in this case, it is possible to which more efficient is Split crc field 725 using the L1 multidate informations 723 of next frame.
Specifically, substitute and split extended field 724 and crc field 725 (because the value of extended field is equal to 0) simultaneously, can To split the L1 multidate informations 723 and crc field 725 of next frame simultaneously, then from the L1 multidate informations after the segmentation of next frame 723 build the 2nd L1 multidate informations of the first L1 multidate informations 733 of next frame, next frame with the crc field 725 after segmentation 737 and (the N of next framepost_FEC_Block) L1 multidate informations 741.
According to another embodiment of the present invention, in the absence of extended field and the L1 multidate informations 723 of next frame.In this feelings Under condition, as described in the examples described above, the number of bit may be very small after the segmentation of crc field, is probably so as to split Poorly efficient.Therefore, in this case, crc field 725 is split using the L1 multidate informations 722 of present frame, then from segmentation L1 multidate informations 722 after rear crc field 725 and the segmentation of present frame build the first L1 multidate informations of present frame 731st, the second multidate information 735 of present frame and the (N of present framepost_FEC_Block) multidate information 739.
Figure 10 shows according to an embodiment of the invention for encoding and sending control information by dispensing device The flow chart of method.
Reference picture 10, in step 1000, dispensing device determines L1 signaling informations, and generates and believe after information and L1 before L1- Make information.However, because the present invention relates to signaling information after coding L1-, describe that the volume of information before L1- will not be described below Code.
In step 1002, dispensing device determine exclude filling field L1- after signaling information bit number.In step In rapid 1004, dispensing device is based on the number of the bit of signaling information and coding units after the L1- for excluding filling field come really The fixed number for being used to sending the code block of signaling bit after L1-.Herein, coding units are that encoder is based on its execution first encoding Size, and here also is called " numbers of encoder input information bits ".When Bose-Chaudhuri-Hocquenghem Code and LDPC codings connect, Coding units are the numbers for allowing to be input to the information bit of Bose-Chaudhuri-Hocquenghem Code device, and therefore, also known as BCH information bits.This Outside, the number of the bit of signaling information is equal to the number of the bit of the configurable information of L1, present frame after the L1- of exclusion filling field The numbers of bit of L1 multidate informations, next frame L1 multidate informations bit number and the ratio of CRC and extended field The sum of special number.
In step 1006, dispensing device splits signaling information after L1- according to the number of the code block of determination.Segmentation side Case can use equation as described above.
More specifically, in step 1006, firstly, in multi-disc information each (L1 can configure information bit, The bit and the bit of CRC and extended field of the bit of the L1 multidate informations of present frame, the L1 multidate informations of next frame), by Calculating is made corresponding to the number of the filling bit of correction coefficient.By by the first calculating number of the filling bit of multi-disc information The number for being stuffed entirely with bit of signaling after L1- is obtained to the 4th calculating number phase Calais.
Afterwards, using the ratio of signaling information after the number of the filling bit of signaling after the L1- for excluding to fill field and L1- Special number calculates the number of the bit of signaling after L1-.After can be by dividing calculated L1 according to the number of code block The number of the bit of signaling obtains the number of the input bit for each code block.In other words, by defeated to encoder Enter with signaling bit after the number L1- as many of the input bit obtained to perform coding.
Next, split each (configurable letter of L1 in above-mentioned multi-disc information according to the number of the code block of determination The bit of breath, the bit of the L1 multidate informations of present frame, next frame L1 multidate informations bit and CRC and extended field Bit), and build for each of which all code blocks with the length corresponding with the number of the input bit of acquisition Input bit.In each in above-mentioned multi-disc information, the number of the group of the input bit for code block of structure is equal to The number of the code block of determination.
In step 1008, dispensing device is in the first encoder input information bits to (Npost_FEC_Block) encoder is defeated Enter information bit each include in step 1006 segmentation after L1- after signaling information.In step 1010, transmitter To the first encoder input information bits to (Npost_FEC_Block) encoder input information bits are encoded, then to reception Device sends first generation code block to (Npost_FEC_Block) code block.
In step 1012, the number of the bit of signaling information, code block after dispensing device sends L1- to reception device Number or PLP number after, move on to next frame in step 1014, and for next frame repeat step 1000 to step Rapid 1012.
In Fig. 10, although being described as performing after step 1010 is performed by step 1012, step 1012 can perform before step 1010.Although in addition, dispensing device is described as filling to reception in step 1012 The number for sending the number of bit of signaling information, the number of code block or PLP after L1- is put, but dispensing device can also be sent out Full detail is sent, or it can only send some information (for example, PLP number).
For example, in broadcast/communication system according to an embodiment of the invention, signaling is believed after dispensing device sends L1- The number of the bit of breath and on signaling code information (LDPC code word length and code check) without send code block number When, reception device can estimate the number of code block by using this information.
Figure 11 is the stream for showing method according to an embodiment of the invention, for receiving control information by reception device Cheng Tu.
Reference picture 11, in step 1100, reception device receives the L1 signaling informations of present frame.In step 1102, connect The number of the number of bit of signaling information, the number of code block and PLP after the L1- that receiving apparatus acquisition is sent in the current frame In it is at least one.Herein, the number or code block of the bit of signaling information after reception device can receive L1- from dispensing device Number, or predetermined information can be used.This option can change according to the user of system.Although in addition, also exist Information before reception L1- in step 1100, but the present invention relates to signaling information after L1-, and information passes through by applying before L1- The scheme that the broadcast/communication system of the present invention performs is handled.Therefore, information is described in more detail before omitting L1-.
In step 1104, the code block that reception device decoding receives.In a step 1106, reception device extraction is wrapped Signaling information bits after L1- are included after the segmentation in each in the code block of decoding, and in step 1008, receive dress Signaling information bits are put after the L1- for reconfiguring and extracting in a step 1106 to return to the state before segmentation.
In step 1110, reception device using signaling information bits after the L1- reconfigured in step 1108 and is removed L1 signaling informations after the L1- received in step 1100 outside signaling information receive data.
In step 1112, reception device moves on to next frame, and arrives step 1110 for next frame repeat step 1100 In operation.
Figure 12 is the block diagram for showing dispensing device 1200 according to an embodiment of the invention.
Reference picture 12, L1 signaling informations maker 1202 generate the L1 signaling informations of present frame.Specifically, L1 signaling informations Maker 1202 generates before L1- signaling information after information and L1-, and export to encoder 1204 before the L1- of generation information and Signaling information after the L1 of generation.However, because the present invention relates to signaling information after coding L1-, and information passes through application before L1- The broadcast/communication system coding of the present invention, so will not be described in greater detail information before L1- herein.
Controller 1206 determines signaling after L1- being generated by L1 signaling informations maker 1202, excluding filling field The number of the bit of information.Controller 1206 based on eliminate filling field and coding units, determine L1- after signaling information The number of bit determine the number for sending the code block of signaling bit after L1-.In addition, controller 1206 can determine PLP number.
When controller 1206 determines the number of code block, it believes after splitting L1- according to the number of the code block of determination Make information.In addition, when encoder 1204 includes interleaver, controller 1206 controls interleaver to split signaling information after L1-. Otherwise, controller 1206 can control L1 signaling informations maker 1202 to split signaling information after L1-.Splitting scheme can make With above-mentioned equation.
More specifically, for each in multi-disc information, (L1 can configure the L1 multidate informations of the bit of information, present frame Bit, next frame L1 multidate informations bit and the bit of CRC and extended field), controller 1206 calculates phase first Should be in the number of the filling bit of correction coefficient.Controller by the first of the filling bit of multi-disc information then by calculating number Mesh obtains the number for being stuffed entirely with bit of signaling after L1- to the 4th calculating number phase Calais.Controller uses the L1- obtained Afterwards the number of the filling bit of signaling and exclude determine filling field L1- after signaling information bit number, to count The number of whole bits of signaling after calculation L1-.Signaling after the L1- of calculating can be divided by the number of the code block of determination The number of bit, so as to obtain the number for the input bit that each code block needs.In other words, by encoder input with Signaling bit performs coding after the L1- of the number of the input bit of acquisition as many.
According to the number executive control operation of the code block of determination, to split multi-disc information, (L1 can configure information to controller Bit, the bit of L1 multidate informations of present frame, next frame L1 multidate informations bit and the ratio of CRC and extended field It is special), and build the input for each of which all code blocks with the length corresponding with the number of the input bit of acquisition Bit.The number of the group of the input bit for code block of structure is equal to the number of the code block determined.
Controller 1206 controls encoder 1204 or L1 signaling informations maker 1202, to input information in the first encoder Bit is to (Npost_FEC_Block) encoder input information bits each include segmentation after L1- after signaling information.Compile Code device 1204 encodes the first encoder input information bits to (N firstpost_FEC_Block) encoder input information bits, then First generation code block is exported to (N to transmitter 1208post_FEC_Block) code block.Transmitter 1208 is according to the control of controller 1206 System, code block is sent to reception device based on frame by frame.In addition, transmitter 1208 can send basis to reception device The number for the PLP that controller 1206 determines.
Figure 13 is the block diagram for showing reception device 1300 according to an embodiment of the invention.
Reference picture 13, receiver 1302 receives the L1 signaling informations of present frame, and is received to the output of decoder 1304 Present frame L1 signaling informations.In addition, receiver 1302 receives the bit of signaling information after the L1- sent in the current frame It is at least one in the number of number, the number of code block and PLP, and export received data to controller 1306. Herein, number, the number of code block of the bit of signaling information after controller 1306 can receive L1- from dispensing device, or PLP Number, or predetermined information can be used.This option can change according to the user of system.Although in addition, receive Device 1302 also receives information before L1-, but because the present invention relates to signaling information after L1-, and information passes through by applying before L1- The scheme that the broadcast/communication system of the present invention performs is handled, so being described in more detail for information before L1- will be omitted.
Decoder 1304 decodes the code block received.
According to an embodiment of the invention, controller 1306 is performed for extracting each being included in the code block of decoding In segmentation after after L1- signaling information bits control operation.Reformer 1308 reconfigures the control according to controller 1306 Signaling information bits after the L1- of extraction, to return to the state before segmentation.It is, controller 1306 is by using L1- One in the number of the number of the bit of signaling information, the number of code block and PLP calculates partition value afterwards, and to The partition value that the notice of reformer 1308 calculates.Therefore, controller 1306 by performing the processing performed by dispensing device on the contrary To enable the recovery of signaling information after original L1.
Controller 1306 controls receiver 1302, after using signaling information bits after the L1- reconfigured and except L1- L1 signaling informations outside signaling information receive data.
As described above, although L1 can configure information and L1 multidate informations are referred to as " signaling information after L1- ", this refers to Show it is the term used when the present invention is applied to DVB-T2 (digital video broadcast-terrestrial 2).Therefore, when the present invention is applied to During DVB-C2 (digital cable video broadcasting 2), L1 can configure information and L1 multidate informations are also referred to as " part II signalings letter Breath ".
In addition, the embodiment of present invention as described above is also implemented as that non-momentary meter can be recorded in by computer Code in calculation machine recordable recording medium.
For example, computer recordable recording medium can be can store can by computer system read data can Select data storage device.
The example of non-momentary computer recordable recording medium includes read-only storage (ROM), random access memory Device (RAM), compact disk (CD), tape, floppy disk and optical data storage.However, the present invention is not limited to these examples.
According to the embodiment of present invention as described above, transmitter coding control information effectively to change control information, So as to which receiver can improve decoding performance.
Although the present invention has shown and described with reference to the particular embodiment of the present invention, those skilled in the art will Understand, it can be carried out in the case of without departing from the spirit and scope of the invention in form and in details various changes Become.Therefore, the spirit and scope of the present invention are not limited to described embodiments of the invention, but by claim and its wait Thing is imitated to limit.

Claims (16)

1. a kind of method for being used to send signaling information by transmitter in broadcast/communication system, methods described include：
Generation includes the signaling information of multiple；
The number of bit based on signaling information and the number of encoder input information bits determine that signaling information will be encoded The code block number arrived；
Number based on code block splits at least one of every signaling information；
The input information bits of each code block are built, with the part after the segmentation including every signaling information；
Input information bits are encoded in each code block；And
Each code block is sent,
Wherein described signaling information includes layer 1L1 and can configure information and L1 multidate informations, the L1 multidate informations of present frame, next frame L1 multidate informations, extended field, CRC (CRC) field and filling field；
Wherein KL1_confRepresent that L1 can configure the length of information, KL1_dyn,cThe length of the L1 multidate informations of present frame is represented, KL1_dyn,nRepresent the length of the L1 multidate informations of next frame, KL1_extRepresent the length of extended field, and NcrcRepresent crc field Length, and Npost_FEC_BlockThe number of code block is represented, and
Wherein K is defined by following equatioiesL1_conf_PAD：
Wherein K is defined by following equatioiesL1_dyn,c_PAD：
Wherein K is defined by following equatioiesL1_dyn,n_PAD：
And
Wherein K is defined by following equatioiesL1_ext_PAD：
2. the method as described in claim 1, wherein the number by following equation definition code blocks：
Wherein Npost_FEC_BlockRepresent the number of code block, Kpost_ex_padThe number of the signaling bit of exclusion filling field is represented, KbchThe number of the bit encoded corresponding to coding units and presentation code device in units of once, KbchBose is worked as in expression Chaudhuri Hocquenghem (BCH) are encoded to be allowed to be input to BCH volumes when connecting with low-density checksum (LDPC) coding The number of the BCH information bits of code device, and A represents correction coefficient.
3. method as claimed in claim 2, the length of filling field is defined by following equatioies：
KL1_PADDING=KL1_conf_PAD+KL1_dyn,c_PAD+KL1_dyn,n_PAD+KL1_ext_PAD,
Wherein KL1_PADDINGRepresent the length of filling field, KL1_conf_PADRepresent that L1 can configure the length of the filling field of information, KL1_dyn,c_PADRepresent the length of the filling field of the L1 multidate informations of present frame, KL1_dyn,n_PADRepresent that the L1 dynamics of next frame are believed The length of the filling field of breath, and KL1_ext_PADRepresent the length for including the filling field of CRC extended field.
4. the method as described in claim 1, wherein defining the length of the input information bits of each code block by following equatioies Degree：
<mrow> <msub> <mi>K</mi> <mrow> <mi>s</mi> <mi>i</mi> <mi>g</mi> </mrow> </msub> <mo>=</mo> <mfrac> <msub> <mi>K</mi> <mrow> <mi>p</mi> <mi>o</mi> <mi>s</mi> <mi>t</mi> </mrow> </msub> <msub> <mi>N</mi> <mrow> <mi>p</mi> <mi>o</mi> <mi>s</mi> <mi>t</mi> <mo>_</mo> <mi>F</mi> <mi>E</mi> <mi>C</mi> <mo>_</mo> <mi>B</mi> <mi>l</mi> <mi>o</mi> <mi>c</mi> <mi>k</mi> </mrow> </msub> </mfrac> <mo>,</mo> </mrow>
Wherein KsigRepresent the length of the input information bits of each code block, Npost_FEC_BlockThe number of code block is represented, and K is defined by following equatioiespost：
Kpost=Kpost_ex_pad+KL1_PADDING,
Wherein Kpost_ex_padRepresent the number of the signaling bit of exclusion filling field, and KL1_PADDINGRepresent the length of filling field Degree.
5. a kind of method for being used to receive signaling information by receiver in broadcast/communication system, methods described include：
Receive the code block of signaling information；
The number of the bit of signaling information or the number of the code block of signaling information are obtained, wherein the bit based on signaling information The number of number and encoder input information determines the number of code block, wherein the number based on code block splits every signaling Information it is at least one；
Decoding code block；
Extraction is included in signaling information bits after the segmentation in the code block of decoding；And
The state that signaling information bits after the segmentation of extraction are returned to before segmentation,
Wherein each code block includes the part after the segmentation of every signaling information,
Wherein described signaling information includes layer 1L1 and can configure information and L1 multidate informations, the L1 multidate informations of present frame, next frame L1 multidate informations, extended field, CRC (CRC) field and filling field；
Wherein KL1_confRepresent that L1 can configure the length of information, KL1_dyn,cThe length of the L1 multidate informations of present frame is represented, KL1_dyn,nRepresent the length of the L1 multidate informations of next frame, KL1_extRepresent the length of extended field, and NcrcRepresent crc field Length, and Npost_FEC_BlockThe number of code block is represented, and
Wherein K is defined by following equatioiesL1_conf_PAD：
Wherein K is defined by following equatioiesL1_dyn,c_PAD：
Wherein K is defined by following equatioiesL1_dyn,n_PAD：
And
Wherein K is defined by following equatioiesL1_ext_PAD：
6. method as claimed in claim 5, wherein the number by following equation definition code blocks：
Wherein Npost_FEC_BlockRepresent the number of code block, Kpost_ex_padThe number of the signaling bit of exclusion filling field is represented, KbchThe number of the bit encoded corresponding to coding units and presentation code device in units of once, KbchBose is worked as in expression Chaudhuri Hocquenghem (BCH) are encoded to be allowed to be input to BCH volumes when connecting with low-density checksum (LDPC) coding The number of the BCH information bits of code device, and A represents correction coefficient.
7. method as claimed in claim 6, the length of filling field is defined by following equatioies：
KL1_PADDING=KL1_conf_PAD+KL1_dyn,c_PAD+KL1_dyn,n_PAD+KL1_ext_PAD,
Wherein KL1_PADDINGRepresent the length of filling field, KL1_conf_PADRepresent that L1 can configure the length of the filling field of information, KL1_dyn,c_PADRepresent the length of the filling field of the L1 multidate informations of present frame, KL1_dyn,n_PADRepresent that the L1 dynamics of next frame are believed The length of the filling field of breath, and KL1_ext_PADRepresent the length for including the filling field of CRC extended field.
8. method as claimed in claim 5, wherein defining the length of the input information bits of each code block by following equatioies Degree：
<mrow> <msub> <mi>K</mi> <mrow> <mi>s</mi> <mi>i</mi> <mi>g</mi> </mrow> </msub> <mo>=</mo> <mfrac> <msub> <mi>K</mi> <mrow> <mi>p</mi> <mi>o</mi> <mi>s</mi> <mi>t</mi> </mrow> </msub> <msub> <mi>N</mi> <mrow> <mi>p</mi> <mi>o</mi> <mi>s</mi> <mi>t</mi> <mo>_</mo> <mi>F</mi> <mi>E</mi> <mi>C</mi> <mo>_</mo> <mi>B</mi> <mi>l</mi> <mi>o</mi> <mi>c</mi> <mi>k</mi> </mrow> </msub> </mfrac> <mo>,</mo> </mrow>
Wherein KsigRepresent the length of the input information bits of each code block, Npost_FEC_BlockThe number of code block is represented, and K is defined by following equatioiespost：
Kpost=Kpost_ex_pad+KL1_PADDING,
Wherein Kpost_ex_padRepresent the number of the signaling bit of exclusion filling field, and KL1_PADDINGRepresent the length of filling field Degree.
9. a kind of device for being used to send signaling information in broadcast/communication system, described device include：
Layer 1L1 signaling information makers, the signaling information of multi-disc is included for generating；
Controller, determine that signaling is believed for the number of the bit based on signaling information and the number of encoder input information bits Cease the code block number that will be encoded into；
Encoder, split at least one of every signaling information for the number based on code block, build the defeated of each code block Enter information bit with the part after the segmentation including every signaling information, and input information bits are encoded to each code Block；And
Transmitter, for sending each encoding block,
Wherein described signaling information includes layer 1L1 and can configure information and L1 multidate informations, the L1 multidate informations of present frame, next frame L1 multidate informations, extended field, CRC (CRC) field and filling field；
Wherein KL1_confRepresent that L1 can configure the length of information, KL1_dyn,cThe length of the L1 multidate informations of present frame is represented, KL1_dyn,nRepresent the length of the L1 multidate informations of next frame, KL1_extRepresent the length of extended field, and NcrcRepresent crc field Length, and Npost_FEC_BlockThe number of code block is represented, and
Wherein K is defined by following equatioiesL1_conf_PAD：
Wherein K is defined by following equatioiesL1_dyn,c_PAD：
Wherein K is defined by following equatioiesL1_dyn,n_PAD：
And
Wherein K is defined by following equatioiesL1_ext_PAD：
10. device as claimed in claim 9, wherein the number by following equation definition code blocks：
Wherein Npost_FEC_BlockRepresent the number of code block, Kpost_ex_padThe number of the signaling bit of exclusion filling field is represented, KbchThe number of the bit encoded corresponding to coding units and presentation code device in units of once, KbchBose is worked as in expression Chaudhuri Hocquenghem (BCH) are encoded to be allowed to be input to BCH volumes when connecting with low-density checksum (LDPC) coding The number of the BCH information bits of code device, and A represents correction coefficient.
11. device as claimed in claim 10, the length of field is filled by following definitions：
KL1_PADDING=KL1_conf_PAD+KL1_dyn,c_PAD+KL1_dyn,n_PAD+KL1_ext_PAD,
Wherein KL1_PADDINGRepresent the length of filling field, KL1_conf_PADRepresent that L1 can configure the length of the filling field of information, KL1_dyn,c_PADRepresent the length of the filling field of the L1 multidate informations of present frame, KL1_dyn,n_PADRepresent that the L1 dynamics of next frame are believed The length of the filling field of breath, and KL1_ext_PADRepresent the length for including the filling field of CRC extended field.
12. device as claimed in claim 9, wherein the length of the input information bits by the way that each code block is defined as below：
<mrow> <msub> <mi>K</mi> <mrow> <mi>s</mi> <mi>i</mi> <mi>g</mi> </mrow> </msub> <mo>=</mo> <mfrac> <msub> <mi>K</mi> <mrow> <mi>p</mi> <mi>o</mi> <mi>s</mi> <mi>t</mi> </mrow> </msub> <msub> <mi>N</mi> <mrow> <mi>p</mi> <mi>o</mi> <mi>s</mi> <mi>t</mi> <mo>_</mo> <mi>F</mi> <mi>E</mi> <mi>C</mi> <mo>_</mo> <mi>B</mi> <mi>l</mi> <mi>o</mi> <mi>c</mi> <mi>k</mi> </mrow> </msub> </mfrac> <mo>,</mo> </mrow>
Wherein KsigRepresent the length of the input information bits of each code block, Npost_FEC_BlockThe number of code block is represented, and By the way that K is defined as belowpost：
Kpost=Kpost_ex_pad+KL1_PADDING,
Wherein Kpost_ex_padRepresent the number of the signaling bit of exclusion filling field, and KL1_PADDINGRepresent the length of filling field Degree.
13. a kind of device for being used to receive signaling information in broadcast/communication system, described device include：
Receiver, for receiving the code block of signaling information；
Decoder, for decoding code block；
Controller, for the bit that obtains signaling information number or signaling information code block number, wherein based on signaling The number of number and encoder the input information of the bit of information determines the number of code block, wherein the number based on code block Split at least one of every signaling information, and extraction is included in signaling information ratio after the segmentation in the code block of decoding It is special；And
Reformer, for by the signaling information bits after segmentation be recombined into segmentation before state,
Wherein each code block includes the part after the segmentation of every signaling information,
Wherein described signaling information includes layer 1L1 and can configure information and L1 multidate informations, the L1 multidate informations of present frame, next frame L1 multidate informations, extended field, CRC (CRC) field and filling field；
Wherein KL1_confRepresent that L1 can configure the length of information, KL1_dyn,cThe length of the L1 multidate informations of present frame is represented, KL1_dyn,nRepresent the length of the L1 multidate informations of next frame, KL1_extRepresent the length of extended field, and NcrcRepresent crc field Length, and Npost_FEC_BlockThe number of code block is represented, and
Wherein K is defined by following equatioiesL1_conf_PAD：
Wherein K is defined by following equatioiesL1_dyn,c_PAD：
Wherein K is defined by following equatioiesL1_dyn,n_PAD：
And
Wherein K is defined by following equatioiesL1_ext_PAD：
14. device as claimed in claim 13, wherein the number by following equation definition code blocks：
Wherein Npost_FEC_BlockRepresent the number of code block, Kpost_ex_padThe number of the signaling bit of exclusion filling field is represented, KbchThe number of the bit encoded corresponding to coding units and presentation code device in units of once, KbchBose is worked as in expression Chaudhuri Hocquenghem (BCH) are encoded to be allowed to be input to BCH volumes when connecting with low-density checksum (LDPC) coding The number of the BCH information bits of code device, and A represents correction coefficient.
15. device as claimed in claim 14, the length of field is filled by following definitions：
KL1_PADDING=KL1_conf_PAD+KL1_dyn,c_PAD+KL1_dyn,n_PAD+KL1_ext_PAD,
Wherein KL1_PADDINGRepresent the length of filling field, KL1_conf_PADRepresent that L1 can configure the length of the filling field of information, KL1_dyn,c_PADRepresent the length of the filling field of the L1 multidate informations of present frame, KL1_dyn,n_PADRepresent that the L1 dynamics of next frame are believed The length of the filling field of breath, and KL1_ext_PADRepresent the length for including the filling field of CRC extended field.
16. device as claimed in claim 13, wherein the length of the input information bits by the way that each code block is defined as below：
<mrow> <msub> <mi>K</mi> <mrow> <mi>s</mi> <mi>i</mi> <mi>g</mi> </mrow> </msub> <mo>=</mo> <mfrac> <msub> <mi>K</mi> <mrow> <mi>p</mi> <mi>o</mi> <mi>s</mi> <mi>t</mi> </mrow> </msub> <msub> <mi>N</mi> <mrow> <mi>p</mi> <mi>o</mi> <mi>s</mi> <mi>t</mi> <mo>_</mo> <mi>F</mi> <mi>E</mi> <mi>C</mi> <mo>_</mo> <mi>B</mi> <mi>l</mi> <mi>o</mi> <mi>c</mi> <mi>k</mi> </mrow> </msub> </mfrac> <mo>,</mo> </mrow>
Wherein KsigRepresent the length of the input information bits of each code block, Npost_FEC_BlockThe number of code block is represented, and By the way that K is defined as belowpost：
Kpost=Kpost_ex_pad+KL1_PADDING,
Wherein Kpost_ex_padRepresent the number of the signaling bit of exclusion filling field, and KL1_PADDINGRepresent the length of filling field Degree.
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