WO2015006947A1 - Procédé et dispositif de codage à faible taux binaire - Google Patents

Procédé et dispositif de codage à faible taux binaire Download PDF

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Publication number
WO2015006947A1
WO2015006947A1 PCT/CN2013/079576 CN2013079576W WO2015006947A1 WO 2015006947 A1 WO2015006947 A1 WO 2015006947A1 CN 2013079576 W CN2013079576 W CN 2013079576W WO 2015006947 A1 WO2015006947 A1 WO 2015006947A1
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WO
WIPO (PCT)
Prior art keywords
data block
bits
bit
output
encoding
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Application number
PCT/CN2013/079576
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English (en)
Chinese (zh)
Inventor
陈军
李斌
沈晖
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201380074409.1A priority Critical patent/CN105009541B/zh
Priority to PCT/CN2013/079576 priority patent/WO2015006947A1/fr
Publication of WO2015006947A1 publication Critical patent/WO2015006947A1/fr

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Classifications

    • 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis

Definitions

  • the present invention relates to the field of communications, and in particular, to a low code rate encoding method and apparatus. Background technique
  • the Polar code can achieve excellent performance by special selection of row or column vectors in the coding matrix. And can also achieve smaller bit error rate and better performance by lower code rate.
  • 3GPP 3rd Generation Partnership Project
  • two methods of adjusting the code rate such as regular information filling method and encoding repetition method, are proposed to obtain a lower code rate.
  • the regular information filling method proposed in the above proposal conflicts with the way that the Polar code itself is selected by the row vector or the column vector, so that the Polar code cannot reasonably select the vector in the encoding matrix under the method. This causes the performance of the Polar code to degrade.
  • the reliability ordering needs to be calculated, and then the corresponding Polar coding matrix is determined.
  • the information bits and the position of the second bit in the reliability ranking need to be performed. Re-adjustment will increase the complexity of the coding and reduce the operability of the actual application.
  • Embodiments of the present invention provide a low code rate encoding method and apparatus, which can obtain a low code rate Polar code in a more convenient manner, reduce the complexity of encoding, and improve the operability of practical applications.
  • a low code rate encoding method comprising: filling a first bit at a specific position of an input data block to form a first data block; filling at a specific location of the first data block a second bit constituting a second data block; encoding the second data block to obtain a coded bit;
  • the coded bits are output.
  • the input data block Filling the first bit with a specific location specifically includes:
  • the first bit is added to the front end or the back end of the input data block in accordance with a specific sequence of Polar encoding.
  • the filling the second bit in the specific location of the first data block includes:
  • the second bit is added in a specific sequence of Polar encoding at the front end or the back end of the first data block.
  • the outputting the coding bit includes:
  • Some or all of the coded bits are selected, and the selected part or all of the coded bits are output as output bits.
  • the outputting the selected part or all of the coded bits as an output bit includes:
  • a bit of a preset length is selected from the coded bits for output;
  • the coded bits are sorted according to the specific sequence of the Polar code, and the padding bit length is deleted from the preset position in the sorted coded bits. Bits, and selecting the bits of the preset length from the remaining coded bits for output.
  • the preset location is predefined or notified by a hybrid automatic repeat request redundancy version message.
  • a low code rate encoding device where the device includes:
  • a first padding unit configured to fill a first bit at a specific position of the input data block to form a first data block
  • a second padding unit configured to fill a second bit at a specific position of the first data block to form a second data block
  • the first filling unit is specifically configured to:
  • the first bit is added to the front end or the back end of the input data block in accordance with a specific sequence of Polar encoding.
  • the second filling unit is specifically configured to:
  • the second bit is added in a specific sequence of Polar encoding at the front end or the back end of the first data block.
  • the output unit is specifically configured to:
  • Some or all of the coded bits are selected, and the selected part or all of the coded bits are output as output bits.
  • the output unit includes:
  • a first output subunit configured to: when the format of the Polar code is a non-system type, the second output subunit, when the format of the Polar code is a system type, according to the specific sequence of the Polar code Sorting the coded bits, deleting the bits of the padding bit length from the preset position in the sorted coded bits, and combining the second aspect from the remaining fifth possible implementation manner
  • the preset location is predefined or notified by a hybrid automatic repeat request redundancy version message.
  • the third aspect Providing a low code rate encoding device, the device comprising:
  • a first padding unit configured to fill a first bit at a specific position of the input data block to form a first data block
  • a second padding unit configured to fill a second bit at a specific position of the first data block to form a second data block
  • the first filling unit is specifically configured to:
  • the first bit is added to the front end or the back end of the input data block in accordance with a specific sequence of Polar encoding.
  • the second filling unit is specifically configured to:
  • the second bit is added in a specific sequence of Polar encoding at the front end or the back end of the first data block.
  • the output unit is specifically configured to:
  • Some or all of the coded bits are selected, and the selected part or all of the coded bits are output as output bits.
  • the output unit includes:
  • a first output subunit configured to: when the format of the Polar code is a non-system type, the second output subunit, when the format of the Polar code is a system type, according to the specific sequence of the Polar code Sorting the coded bits, deleting the bit of the padding bit length from the preset position in the sorted coded bits, and combining the third aspect from the remaining fifth possible implementation manner
  • the preset location is predefined or notified by a hybrid automatic repeat request redundancy version message.
  • the present invention provides a low code rate encoding method and apparatus, by filling a first bit at a specific position of an input data block to form a first data block, and filling a second bit at a specific position of the first data block to form a first Two data blocks, encoding the second data block, obtaining coded bits, and outputting the coded bits; thereby obtaining a low code rate Polar code in a more convenient manner, reducing coding complexity and improving practical application The operability.
  • FIG. 1 is a schematic diagram of a low code rate encoding method according to an embodiment of the present invention
  • FIG. 2 is a structural diagram of a second data block after completion of adding according to an embodiment of the present invention
  • FIG. 4 is a structural diagram of the second data block after the addition is completed according to the embodiment of the present invention
  • FIG. 5 is a low code rate according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a low code rate encoding apparatus according to an embodiment of the present invention
  • FIG. 7 is a schematic structural diagram of a low code rate encoding apparatus according to an embodiment of the present invention
  • FIG. 8 is a schematic structural diagram of a low bit rate encoding apparatus according to an embodiment of the present invention.
  • An embodiment of the present invention provides a low code rate encoding method. As shown in FIG. 1, the method includes:
  • the present invention provides a low code rate encoding method, by filling a first bit at a specific position of an input data block to form a first data block, and filling a second bit at a specific position of the first data block to form second data. Blocking, encoding the second data block, obtaining a coded bit, and outputting the coded bit; thereby obtaining a low code rate Polar code in a more convenient manner, reducing coding complexity, and improving practical application. Operational.
  • a low code rate coding method provided by an embodiment of the present invention is described in detail by using a specific embodiment, and the method includes:
  • An embodiment of the present invention provides a low code rate encoding method, where the method includes:
  • the step 201 specifically includes:
  • the first bit is added to the front end or the back end of the input data block in accordance with a specific sequence of Polar encoding.
  • the first bit refers to a padding bit, and the padding bit is a binary sequence.
  • ⁇ ⁇ (0 is a sequence of specific ordering, which generates a sequence of all the rows in the matrix according to the order of reliability from high to low.
  • a sort of reliability is shown in sequence one:
  • the corresponding order is determined, and the location with high reliability is selected as the location set of the information bits to transmit information, and the location with low reliability is used as the location set of the frozen bits, and no information is transmitted.
  • step 202 Fill a second bit at a specific location of the first data block to form a second data block. Similar to step 201, this step also fills the second bit in the order in which the reliability is arranged, wherein the second bit is a fixed bit.
  • the overall length of the second data block defaults to N, where the length of the input data is K. Therefore, the length of the added fixed bit is NK, since the number of padding bits at this time indicates 0, that is, there is no padding bit, therefore,
  • the structure in the second data block after the addition is completed is shown in Figure 2.
  • the number of padding bits indicates a positive value
  • the overall length of the second data block defaults to N, where the length of the input data is K. Therefore, according to the specific sorting sequence of Polar encoding, a pad of length F is added after the input data. Bit, and add a fixed bit after padding the bit, the length of which is NKF, therefore, the structure in the second data block after the addition is completed is as shown in FIG.
  • the overall length of the second data block defaults to N, where the length of the input data is K, so the number of padding bits actually added is the absolute value of F, ie abs (F ).
  • the length of the input data is first shortened, and padding bits are added after the shortened input data, so that the formed first data block length is K, and then after the first data block, according to the specific sorting sequence of Polar encoding. , continue to add fixed bits of length NK, so that the resulting second data block is still N in length.
  • the above adding steps are added in descending order of reliability in the specific ordering of the Polar, and may be added in the order of low to high in the actual process, and the specific method is similar to the above steps, only adding
  • the generated data blocks are arranged in the order of fixed bit-filled bits-input data, which is opposite to the sequence generated by the detailed process described above, and the other steps are identical, and will not be described herein.
  • the code generation matrix of the Polar code is:
  • the generation process of the encoding matrix of the Polar code is:
  • G. Is a basic matrix, (7. 3 ⁇ 4 " means (?. According to the value of the positive integer n, the nth tensor power matrix obtained after n tensor power operations.
  • the detailed encoding process is: First, the matrix GV after the matrix transformation is obtained.
  • the specific row transformation process is based on the sequence one. Similarly, the element in the 32th row in the original matrix is used as the first row element in the new matrix G, and the original matrix ( ⁇ the 16th row element is taken as the new matrix G). The second row of elements, and so on, after the row transformation is completed, the new matrix GV is obtained.
  • each element in the input bit u is multiplied by the corresponding element g nN (l in the new matrix G, N , and the resulting product is accumulated.
  • This step can be expressed by the formula !.g ⁇ . ( ⁇ ⁇ ' ⁇ 2' ⁇ ⁇ ' ) is the input bit, and g nN(i )j is the first row and jth column element of the matrix G.
  • coded bits are selected, and the selected part or all of the coded bits are output as output bits.
  • the step specifically includes:
  • the coded bits are sorted according to the specific sequence of the Polar code, and the padding bits are deleted from the preset position in the sorted coded bits. a bit of a length, and selecting the bit of the preset length from the remaining coded bits for output.
  • the preset location is predefined or notified by the hybrid automatic repeat request redundancy version message.
  • the present invention provides a low code rate encoding method, by filling a first bit at a specific position of an input data block to form a first data block, and filling a second bit at a specific position of the first data block to form second data. Blocking, encoding the second data block, obtaining a coded bit, and outputting the coded bit; thereby obtaining a low code rate Polar code in a more convenient manner, reducing coding complexity, and improving practical application. Operational.
  • the present invention provides a low bit rate encoding device 1.
  • the device 1 includes: a first padding unit 11 for padding a first bit at a specific position of an input data block. Into the first data block;
  • a second filling unit 12 configured to fill a second bit at a specific position of the first data block to form a second data block
  • the encoding unit 13 is configured to encode the second data block to obtain a coded bit
  • the output unit 14 is configured to output the coded bit.
  • the first filling unit 11 is specifically configured to:
  • the first bit is added to the front end or the back end of the input data block in accordance with a specific sequence of Polar encoding.
  • the second filling unit 12 is specifically configured to:
  • the second bit is added in a specific sequence of Polar encoding at the front end or the back end of the first data block.
  • the output unit 14 is specifically used to:
  • Some or all of the coded bits are selected, and the selected part or all of the coded bits are output as output bits.
  • the output unit 14 includes:
  • a first output sub-unit 141 configured to: when the format of the Polar code is a non-system type, the second output sub-unit 142, when the format of the Polar code is a system type, according to the specificity of the Polar code
  • the sequence sorts the coded bits, deletes the bits of the padding bit length from the preset position in the sorted coded bits, and from the remaining, the preset position is predefined or mixed Automatic retransmission request redundancy version message notification.
  • the present invention provides a low bit rate encoding device that fills a first bit at a specific position of an input data block to form a first data block, and fills a second bit at a specific position of the first data block to form second data. Blocking, encoding the second data block, obtaining a coded bit, and outputting the coded bit; thereby obtaining a low code rate Polar code in a more convenient manner, reducing coding complexity, and improving practical application. Operational.
  • the embodiment of the invention further provides a low code rate encoding device 2, as shown in FIG. 2 includes: a bus 21; and a memory 22, a processor 23, a receiver 24, and a transmitter 25 connected to the bus 21, wherein the memory 22 is for storing related instructions, and the processor 23 executes the instructions for inputting data
  • the specific position of the block is filled with the first bit to form a first data block; the processor 23 executes the instruction for filling a second bit at a specific position of the first data block to form a second data block; the processor 23 executes The instruction is for encoding the second data block to obtain a coded bit; the processor 23 executing the instruction is further for outputting the coded bit.
  • the processor 23 executes the instruction to fill the first bit at a specific position of the input data block, and the first data block is configured to include:
  • the first bit is added to the front end or the back end of the input data block in accordance with a specific sequence of Polar encoding.
  • the executing the instruction by the processor 23 to fill the second bit at a specific location of the first data block includes:
  • the second bit is added in a specific sequence of Polar encoding at the front end or the back end of the first data block.
  • the processor 23 executes the instruction for the output, where the encoding bit comprises:
  • Some or all of the coded bits are selected, and the selected part or all of the coded bits are output as output bits.
  • the processor 23 executes the instruction to select, when the format of the Polar code is a non-system type, select a preset length bit from the coded bits for output. ;
  • the coded bits are sorted according to the specific sequence of the Polar code, and the padding bit length is deleted from the preset position in the sorted coded bits. Bits, and selecting the bits of the preset length from the remaining coded bits for output.
  • the present invention provides a low bit rate encoding apparatus that fills a first bit at a specific position of an input data block to form a first data block, and fills a second bit at a specific position of the first data block to form a first Two data blocks, encoding the second data block, obtaining coded bits, and outputting the coded bits; thereby obtaining a low code rate Polar code in a more convenient manner, reducing coding complexity and improving practical application The operability.
  • the disclosed method and apparatus may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separate.
  • the components displayed as units may or may not be physical units, i.e., may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the above software functional units are stored in a storage medium and include instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform some of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a USB flash drive, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. Medium.

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  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

L'invention concerne un procédé de codage à faible taux binaire, se rapporte au domaine des communications, et permet d'obtenir de manière simple un code polaire à faible taux binaire, ce qui permet de réduire la complexité du codage et d'améliorer la fonctionnalité d'une application réelle. Le procédé consiste à: remplir un premier bit en une position spécifique d'un bloc de données d'entrée afin de former un premier bloc de données; remplir un second bit en une position spécifique du premier bloc de données afin de former un second bloc de données; coder le second bloc de données afin d'obtenir un bit codé; et émettre le bit codé. La présente invention est utilisée pour effectuer un codage polaire à faible taux binaire.
PCT/CN2013/079576 2013-07-18 2013-07-18 Procédé et dispositif de codage à faible taux binaire WO2015006947A1 (fr)

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CN201380074409.1A CN105009541B (zh) 2013-07-18 2013-07-18 一种低码率的编码方法和设备
PCT/CN2013/079576 WO2015006947A1 (fr) 2013-07-18 2013-07-18 Procédé et dispositif de codage à faible taux binaire

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WO2016154968A1 (fr) * 2015-04-01 2016-10-06 华为技术有限公司 Procédé de codage, appareil, station de base et équipement d'utilisateur
CN107210845A (zh) * 2015-03-10 2017-09-26 华为技术有限公司 传输信息的方法和通信设备
WO2018019082A1 (fr) * 2016-07-29 2018-02-01 华为技术有限公司 Procédé de retransmission de code polaire et dispositif d'envoi et dispositif de réception associés
WO2018099027A1 (fr) * 2016-11-30 2018-06-07 Qualcomm Incorporated Techniques de génération redondante de codes polaires durant des communications sans fil
WO2018201737A1 (fr) * 2017-05-05 2018-11-08 Jrd Communication (Shenzhen) Ltd Transmission et réception de données à l'aide de codes polaires
WO2018227604A1 (fr) * 2017-06-16 2018-12-20 Huawei Technologies Co., Ltd. Procédés et appareil d'encodage polaire
WO2019015653A1 (fr) * 2017-07-21 2019-01-24 华为技术有限公司 Procédé et dispositif de codage de code polaire
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JP2018512784A (ja) * 2015-03-10 2018-05-17 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． 情報を伝送するための方法および通信デバイス
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WO2016154968A1 (fr) * 2015-04-01 2016-10-06 华为技术有限公司 Procédé de codage, appareil, station de base et équipement d'utilisateur
WO2018019082A1 (fr) * 2016-07-29 2018-02-01 华为技术有限公司 Procédé de retransmission de code polaire et dispositif d'envoi et dispositif de réception associés
CN109983721A (zh) * 2016-11-30 2019-07-05 高通股份有限公司 用于无线通信期间极性码的冗余生成的技术
US11265105B2 (en) 2016-11-30 2022-03-01 Qualcomm Incorporated Techniques for redundancy generation of polar codes during wireless communications
CN109983721B (zh) * 2016-11-30 2021-09-21 高通股份有限公司 用于无线通信期间极性码的冗余生成的技术
WO2018099027A1 (fr) * 2016-11-30 2018-06-07 Qualcomm Incorporated Techniques de génération redondante de codes polaires durant des communications sans fil
WO2018201737A1 (fr) * 2017-05-05 2018-11-08 Jrd Communication (Shenzhen) Ltd Transmission et réception de données à l'aide de codes polaires
WO2018227604A1 (fr) * 2017-06-16 2018-12-20 Huawei Technologies Co., Ltd. Procédés et appareil d'encodage polaire
CN110663189A (zh) * 2017-06-16 2020-01-07 华为技术有限公司 用于极化编码的方法和装置
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CN110663189B (zh) * 2017-06-16 2021-11-19 华为技术有限公司 用于极化编码的方法和装置
CN109286402A (zh) * 2017-07-21 2019-01-29 华为技术有限公司 一种Polar码编码方法及装置
US11323205B2 (en) 2017-07-21 2022-05-03 Huawei Technologies Co., Ltd. Polar code encoding method and apparatus
WO2019015653A1 (fr) * 2017-07-21 2019-01-24 华为技术有限公司 Procédé et dispositif de codage de code polaire
CN109286402B (zh) * 2017-07-21 2022-01-14 华为技术有限公司 一种Polar码编码方法及装置
US11811528B2 (en) 2017-08-02 2023-11-07 Huawei Technologies Co., Ltd. Polar code encoding method and apparatus in wireless communications
WO2019169966A1 (fr) * 2018-03-06 2019-09-12 电信科学技术研究院有限公司 Procédé de traitement de bloc de données d'informations, et terminal de transmission
CN110233697B (zh) * 2018-03-06 2021-08-10 大唐移动通信设备有限公司 一种信息数据块的处理方法和发送端
CN110233697A (zh) * 2018-03-06 2019-09-13 电信科学技术研究院有限公司 一种信息数据块的处理方法和发送端

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