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Polar code coding method and device

一种编码方法、编码装置的技术，应用在编码、编码元件、调整信道编码等方向，能够解决影响Polar码编译码性能提高、极化信道准确度不理想等问题

Pending Publication Date: 2021-06-11
HUAWEI TECH CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The reliability sorting of polarized channels plays an important role in the coding and decoding performance of Polar codes, but at this stage, the accuracy of the reliability sorting of polarized channels is not ideal, which affects the coding and decoding performance of Polar codes in the application process further improvement of

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Embodiment Construction

[0033] Embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

[0034] The embodiment of this application provides a Polar code encoding method and device. According to the principle of Polar codes, the polarization operation affects the reliability of each polarized channel, so that some of them have high reliability and some have low reliability. Select the one with high reliability. Polarized channels are used to transmit information bits, which can achieve good transmission performance. The embodiment of this application starts from the basic principle of Polar codes, and adopts the construction method of bit by bit and mother code length to obtain the sorting sequence constructed by Polar codes, which can better reflect the actual reliability of the channel and help to improve the reliability of polarized channels. The accuracy of sorting improves the encoding and decoding performance of Polar codes.

[003...

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Abstract

The invention relates to the technical field of communication, and discloses a Polar code coding method and device, which are used for improving the accuracy of reliability ranking of polarization channels. The method comprises the steps of determining a sorting sequence used for coding bits to be coded, using the sorting sequence for representing reliability sorting of N polarization channels, wherein N is the mother code length of a Polar code, and N is positive integer power of 2; and carrying out Polar code coding on the to-be-coded bits by adopting the sorting sequence to obtain coded bits.

Description

technical field [0001] The embodiments of the present application relate to the field of communication technologies, and in particular, to a polar code encoding method and device. Background technique [0002] As the most basic wireless access technology, channel coding plays a vital role in ensuring the reliability of data transmission. In an existing wireless communication system, generally, Turbo codes, low density parity check codes (low density parity check, LDPC) and polarization (Polar) codes are used for channel coding. Turbo codes cannot support information transmission with too low or too high a code rate. For the transmission of short and medium packets, Turbo codes and LDPC codes are difficult to achieve ideal performance under limited code length due to their own coding and decoding characteristics. In terms of implementation, Turbo codes and LDPC codes have high computational complexity in the process of encoding and decoding. Polar codes are theoretically p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03M13/13H04L1/00
CPCH03M13/13H04L1/0057H04L1/0043H03M13/1185H03M13/6356H03M13/6375H04L1/0013H04L1/0041H04L1/0058H04L1/1628
Inventor 王坚张华滋李榕
Owner HUAWEI TECH CO LTD
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