Method and device for rate matching of Polar code

A rate matching and encoding technology, applied in the field of encoding, can solve the problems of Polar code length limitation, inability to obtain encoding gain, inapplicability, etc.

Active Publication Date: 2017-06-09
HUAWEI TECH CO LTD
View PDF4 Cites 82 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the code length of traditional Polar codes is strictly limited and must be an integer power of 2, which cannot be applied to systems that require code lengths that can be flexibly adapted to system requirements usi

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and device for rate matching of Polar code
  • Method and device for rate matching of Polar code
  • Method and device for rate matching of Polar code

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048] 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.

[0049] Before describing the specific embodiments, the relevant concepts and technologies involved in the present invention are firstly introduced.

[0050] Compilation and decoding process of Polar code:

[0051] Communication systems usually use channel coding to improve the reliability of data transmission and ensure the quality of communication. Recently, the polar (Polar) code proposed by Arikan is the first good code that can obtain Shannon capa...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method and device for rate matching of Polar codes. The method comprises the steps of: performing Polar code encoding on an information bit sequence with a K-bit length, and generating an encoding bit sequence with an M-bit length; selecting Nmin bits from the encoding bit sequence as the first bit to Nmin-th bit of a bit sequence to be transmitted during a hybrid automatic repeat request (HARQ) process; and determining each bit of (Nmin+1)th bit to Nmax-th bit of the bit sequence to be transmitted from the information bit sequence and the encoding bit sequence, wherein each bit of the (Nmin+1)th bit to the Nmax-th bit of the bit sequence to be transmitted is determined according to a frame error rate of the bit sequence to be transmitted when each bit is added into the bit sequence to be transmitted. By adopting the method of the embodiment of the invention, HARQ transmission based on Polar code encoding can be achieved, and better encoding gain can be obtained.

Description

technical field [0001] Embodiments of the present invention relate to the field of coding, and more specifically, to a method and device for rate matching of polar codes. Background technique [0002] Communication systems usually use channel coding to improve the reliability of data transmission and ensure the quality of communication. Recently, the polar (Polar) code proposed by Arikan is the first good code that can obtain Shannon capacity and have low encoding and decoding complexity theoretically. When the code length is short, the performance of the traditional Serial Cancellation (Successive Cancellation, SC) decoding is not ideal, and its performance is not as good as the Low-Density Parity-Check (LDPC) which has been widely used at present. code or Turbo code. [0003] The latest research shows that based on the improvement of the SC algorithm, the serial cancellation list (Successive CancellationList, SCL) decoding, the serial cancellation stack (Successive Cance...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04L1/00
CPCH04L1/0013H04L1/0057H04L1/0071H04L1/00H03M13/13H03M13/6306H03M13/6362
Inventor 陈凯李斌沈晖
Owner HUAWEI TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap