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Parity check bit generation method and device of Polar code and readable storage medium

A technology of parity check and generation device, applied in error detection coding, error correction/detection using linear code, error correction/detection using block code, etc.

Active Publication Date: 2020-07-07
BEIJING SPREADTRUM HI TECH COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When using existing methods to generate PC-CA-Polar codes, there is a problem that different PC bits check the same information bits, that is, there are two or two The above PC bits check the same information bits

Method used

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  • Parity check bit generation method and device of Polar code and readable storage medium
  • Parity check bit generation method and device of Polar code and readable storage medium
  • Parity check bit generation method and device of Polar code and readable storage medium

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Embodiment Construction

[0033] As mentioned above, in the prior art, when using the existing method to generate the PC-CA-Polar code, there is a problem that different PC bits check the same information bit, that is, there are two or more PC bit checks. The same information bits.

[0034] For example, refer to figure 1 , Gives a schematic diagram of the relationship between PC bits and information bits in PC-CA-Polar codes. figure 1 Among them, I1~I7 are information bits, PC1, PC2, and PC3 are PC bits, and the information bits checked by PC1 are I1 and I4, the information bits checked by PC2 are also I1 and I4, and the information bits checked by PC3 are I5. And I7. Therefore, there are two PC bits in the PC-CA-Polar code that verify the same information bits.

[0035] In the embodiment of the present invention, for the N-1 target PC bits at the lower position, when the associated information bits are adjusted, the information bit associated with the i-th target PC bit is associated with the PC bit befor...

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Abstract

The invention discloses a parity check bit generation method and device of a Polar code and a readable storage medium. The method comprises: detecting whether there are N target PC bits with the samecheck information bits or not in a generated PC-CA-Polar code; when it is detected that N target PC bits exist, determining target information bits associated with N-1 target PC bits in sequence, comprising: adjusting the information bit associated with the ith target PC bit, the adjusted information bit associated with the ith target PC bit not overlapping with the information bit associated withthe PC bit before the ith target PC bit; and selecting X information bits satisfying a preset condition from the adjusted information bits associated with the ith target PC bit as target informationbits associated with the ith target PC bit. According to the scheme, the situation that different PC bits in the PC-CA-Polar code verify the same information bit can be effectively avoided.

Description

Technical field [0001] The present invention relates to the field of communications, in particular to a method and device for generating parity bits of Polar codes, and a readable storage medium. Background technique [0002] Parity Check and CRC Aided Polar code (PC-CA-Polar) has been widely used in wireless communications. The existing PC-CA-Polar code generation process can be briefly described as follows: firstly perform CRC encoding on the information bit sequence, and then generate PC bits; then, compare the information bit sequence and the generated CRC check bits with the PC check The bits are fed into the Polar encoder together. [0003] When using the existing method to generate the PC-CA-Polar code, there is a problem that different PC bits verify the same information bit, that is, two or more PC bits verify the same information bit. Summary of the invention [0004] The embodiment of the present invention solves the technical problem that different PC bits in the PC-CA...

Claims

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Application Information

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IPC IPC(8): H03M13/13H03M13/09
CPCH03M13/13H03M13/09
Inventor 樊婷婷徐志昆
Owner BEIJING SPREADTRUM HI TECH COMM TECH CO LTD
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