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Rate matching method and rate matching device for polar code

A rate matching and polarity technology, applied in the field of encoding and decoding, can solve the problems of high frame error rate and poor HARQ performance, and achieve the effect of improving performance and ensuring reliability.

Active Publication Date: 2020-02-14
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This random (quasi-random) punching method has a high frame error rate and poor HARQ performance

Method used

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  • Rate matching method and rate matching device for polar code
  • Rate matching method and rate matching device for polar code
  • Rate matching method and rate matching device for polar code

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0027] The terms "component", "module", "system" and the like are used in this specification to refer to a computer-related entity, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a component may be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and / or a computer. By way of illustration, both an applicat...

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Abstract

A rate matching method and a rate matching device of a Polar code. The method includes: dividing the systematic Polar code output by the Polar code encoder into systematic bits and parity bits; interleaving the systematic bits to obtain a first group of interleaved bits, and interleaving the parity bits to obtain a second group of interleaved bits bits; determining a rate-matched output sequence based on the first set of interleaved bits and the second set of interleaved bits. By interleaving the systematic bits and parity bits separately, a rate-matched output sequence is obtained, which makes the interleaved sequence structure more random and can reduce FER, thereby improving HARQ performance and ensuring the reliability of data transmission.

Description

technical field [0001] Embodiments of the present invention relate to the field of encoding and decoding, and more specifically, relate to a rate matching method and a rate matching device for Polar codes (polar codes). Background technique [0002] Communication systems usually use channel coding to improve the reliability of data transmission and ensure the quality of communication. Polar codes (polar codes) are encoding methods that can obtain Shannon capacity and have low encoding and decoding complexity. Polar codes are a type of linear block codes. Its generating matrix is ​​G N. , whose encoding process is here Code length N=2 n , n≥0. [0003] here B N is a transposed matrix, such as a bit reversal matrix. [0004] is the Kronecker power of F, defined as Polar codes can be expressed as coset codes Its encoding process is: Here A is the set of information (information) bit index, G N. (A) is G N. The submatrix obtained by the row corresponding to...

Claims

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Application Information

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IPC IPC(8): H04L1/00
CPCH04L1/0057H04L1/0068H04L1/1812H04L1/0041H04L1/1819H04L1/1835H03M13/13H03M13/2739H03M13/6306H03M13/6362H04L1/1867H04L1/0071H04L1/0061H04L1/0067H04W28/14
Inventor 沈晖李斌陈军
Owner HUAWEI TECH CO LTD
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