Method and apparatus for polar encoding

A polar coding and polar coding technology, applied in the field of polar coding, can solve the problem of low coding complexity

Active Publication Date: 2021-11-19
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These polar codes compete with state-of-the-art error-correcting codes with low coding complexity

Method used

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  • Method and apparatus for polar encoding
  • Method and apparatus for polar encoding
  • Method and apparatus for polar encoding

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Experimental program
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Embodiment Construction

[0051] figure 1 is by way of example showing how to get from the kernel G 2 100 Generate a graph of a polar encoding generator matrix. Notice, figure 1 is the example. Other forms of kernels are also possible. Polarization comes from a "nested" approach, where a generator matrix is ​​created from a kernel (or a combination of kernels).

[0052] figure 1 The 2-fold Kronecker product matrix in 102 and 3 times Kronecker product matrix 104 is an example of a polar code generator matrix. can be extended figure 1 The generator matrix approach shown in to generate m-fold Kronecker product matrices

[0053] can be based on the matrix G 2 100 Form polar codes from Kronecker product matrices. For a length N=2 m The polar code of the code word, the generator matrix is figure 2 is a diagram showing an example usage of a polar code generator matrix for generating codewords and a schematic diagram of an example polar code encoder. exist figure 2 , the generator matrix...

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Abstract

A method for explicitly indicating version information while supporting soft merges is disclosed. The polar code encoder maps q bits to q positions of q subchannels, and q is a positive integer, wherein the q bits are used to indicate the version of the encoded codeword; 1 is mapped to the q bits corresponding to the q bits Special freezing bits; mapping K-q information bits to K-q positions of the K-q information bits, K is an integer, K>q; and performing polar encoding on an input vector, the input vector comprising The length of the q bits, the special frozen bits and the K-q information bits is N, where N is an integer, and N≥K. With this method, the version information of the transmitted payload can be obtained without blind detection, which reduces the power consumption of the receiver.

Description

technical field [0001] This application relates generally to communications, and more particularly to polar coding. Background technique [0002] Polar codes are proposed as channel codes for future wireless communications, and polar codes have been chosen for the new 5th generation (5 th Generation, referred to as 5G) (also referred to as 5G New Radio (New Radio, referred to as NR)) air interface uplink and downlink eMBB control channel coding. These polar codes are competitive with prior art error correcting codes and have low coding complexity. See E. Arikan, "Channel polarization: A method for constructing capacity-realizing codes in memoryless channels with symmetric binary inputs", IEEE Transactions on Information Theory, Vol. 55, No. 7, pp. 3051–3073, Year 2009. Successive Cancellation List (SCL) decoding is an option for decoding polar-encoded information. [0003] Based on channel polarization, Arikan designed a channel code that was proven to achieve channel c...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H03M13/00
CPCH04L1/1812H03M13/6306H03M13/13H04L1/00H03M13/3761H03M13/616H03M13/6362H04L1/0061
Inventor弗拉基米尔·格里岑阿列克谢·马耶夫斯基罗禾佳王坚李榕
OwnerHUAWEI TECH CO LTD