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A polar code encoding method and device

An encoding method and encoding technology, applied in the field of Polar code encoding methods and devices, can solve the problems of unsatisfactory polarization channel accuracy, affecting the improvement of Polar code encoding and decoding performance, and the like

Active Publication Date: 2021-02-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • 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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  • A polar code encoding method and device

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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 present application relates to the field of communication technology, and discloses a polar code encoding method and device, which are used to improve the accuracy of reliability sorting of polarized channels. The method is: determining a sorting sequence for encoding the bits to be coded, the sorting sequence is used to characterize the reliability sorting of N polarized channels, N is the mother code length of the Polar code, and N is a positive integer power of 2 ; Using the sorting sequence to perform Polar code encoding on the bits to be encoded to obtain encoded 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 Patents(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