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A polar code encoding and decoding method and device

An encoding method and polar code technology are applied in the field of polar code encoding and decoding methods and devices, and can solve the problems of poor BLER performance and multi-check bit overhead.

Active Publication Date: 2020-03-03
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] For PC-polar, the last additional N bits are only used for error detection and not for auxiliary decoding, so the false alarm rate will not deteriorate, but PC polar requires more parity bit overhead, resulting in BLER performance deteriorates

Method used

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  • A polar code encoding and decoding method and device
  • A polar code encoding and decoding method and device
  • A polar code encoding and decoding method and device

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Experimental program
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Embodiment 1

[0184] image 3 A schematic diagram of a polar code encoding process provided by an embodiment of the present invention, the process includes the following steps:

[0185] S301: Generate a first sequence according to attribute information of an information sequence to be encoded and a preset first sequence generation algorithm.

[0186] S302: Generate a second sequence according to the attribute information of the information sequence to be encoded and a preset second sequence generation algorithm.

[0187] The polar code encoding method provided by the embodiment of the present invention can be applied to a sending end, and the sending end can be a base station or a UE.

[0188] During the simulation process, the information sequence can be randomly generated by the simulation device, and during the actual data transmission process, the information sequence carries the data to be transmitted. The length of the information sequence is jointly determined by the code length of...

Embodiment 2

[0199] On the basis of the above-mentioned embodiments, in the embodiment of the present invention, according to the attribute information of the information sequence to be encoded and the preset sequence generation algorithm, the generation sequence includes:

[0200] Generate a sequence according to the content of the information sequence to be encoded and the CRC processing algorithm; or,

[0201] Generate a sequence according to the content of the information sequence to be encoded and a preset hash function; or,

[0202] A sequence is generated according to the length of the information sequence to be encoded and a random function.

[0203] In the embodiment of the present invention, the above sequence generating process may be used when generating the first sequence, may also be used when generating the second sequence, or may be used simultaneously when generating the first sequence and the second sequence.

[0204] When the attribute information of the information seq...

Embodiment 3

[0215] When generating the sequence, the first sequence and the second sequence can be directly generated according to the attribute information of the information sequence to be encoded and the preset sequence generation algorithm, but in order to ensure the security of data transmission, after generating the first sequence and / or For the second sequence, the initial sequence may also be generated first according to the corresponding algorithm, and then the first sequence or the second sequence is generated according to the initial sequence, attribute information of the information sequence to be encoded and a preset sequence generation algorithm. On the basis of the above-mentioned embodiments, in the embodiment of the present invention, the generating sequence according to the content of the information sequence to be encoded and the CRC processing algorithm includes:

[0216] Generate an initial sequence according to the content of the information sequence to be encoded and...

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Abstract

The embodiment of the invention discloses a polarization code encoding and decoding method and apparatus. The method comprises the following steps: generating a first sequence according to attribute information of an information sequence to be encoded and a preset first sequence generation algorithm; generating a second sequence according to the attribute information of the information sequence tobe encoded and a preset second sequence generation algorithm; and combining the information sequence, the first sequence and the second sequence, and performing polarization code encoding on the combined sequence. In the polarization code encoding and decoding method and apparatus disclosed by the embodiment of the invention, the first sequence and the second sequence are generated according to the attribute information of the information sequence to be encoded, the preset first sequence generation algorithm and the preset second sequence generation algorithm, therefore the polarization codeencoding of the information sequence is achieved.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a polar code encoding and decoding method and device. Background technique [0002] Currently, with 4G (the 4 th Generation mobile communication technology, the fourth generation mobile communication technology) has entered the stage of large-scale commercial use, and the future-oriented fifth generation mobile communication technology 5G (5G th Generation, the fifth generation) has become a global research and development hotspot. Determining a unified 5G concept and formulating a globally unified 5G standard have become the common voice of the industry. As a 5G eMBB (Enhanced Moblie Broadband, enhanced mobile broadband) scene control channel coding scheme, polar codes (Polar Codes) are a new coding method that can achieve binary symmetric channel capacity and have excellent decoding performance. [0003] Polar code coding and decoding methods in the prior a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03M13/13H03M13/09
CPCH03M13/09H03M13/13
Inventor 陈佩瑶王加庆白宝明孙韶辉
Owner DATANG MOBILE COMM EQUIP CO LTD
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