Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

HARQ (Hybrid Automatic Repeat Request) signal transmitting method and device and receiving method and device based on polar codes

A technology for signal transmission and signal reception equipment, applied in the direction of error correction/detection using linear code, error correction/detection using block code, error prevention/detection using return channel, etc., which can solve the problem of increasing system throughput. Obviously, the average number of retransmissions is large, and the transmission delay is high.

Active Publication Date: 2016-07-06
BEIJING UNIV OF POSTS & TELECOMM
View PDF2 Cites 104 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The research shows that the punctured polar code HARQ transmission method based on Chase combination does not improve the system throughput significantly; The average number of retransmissions in the medium is too large, resulting in high transmission delay

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
  • HARQ (Hybrid Automatic Repeat Request) signal transmitting method and device and receiving method and device based on polar codes
  • HARQ (Hybrid Automatic Repeat Request) signal transmitting method and device and receiving method and device based on polar codes
  • HARQ (Hybrid Automatic Repeat Request) signal transmitting method and device and receiving method and device based on polar codes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0073] 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 only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0074] Embodiments of the present invention provide a method and device for transmitting HARQ signals based on polar codes, which are applied to signal transmission equipment; embodiments of the present invention also provide a method and device for receiving HARQ signals based on polar codes, which are applied to signal receiving device. Instructions are given below.

[0075] The method and device for sending a polar code-based HARQ signal provided by the em...

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 embodiment of the invention provides an HARQ (Hybrid Automatic Repeat Request) signal transmitting method and device and receiving method and device based on polar codes. When transmitting is carried out at a time, when it is judged that there are surplus data blocks, one data block is selected out from the surplus data blocks as an initial transmitting information sequence; the combination of first sub-sequences and second sub-sequences corresponding to negative acknowledge signals in a first retransmitting control queue is determined as a retransmitting information sequence, wherein the first sub-sequences and the second sub-sequences are stored in a transmitting cache queue; the initial transmitting information sequence and the retransmitting information sequence are determined as to-be-transmitted information sequences; one first sub-sequence of the determined to-be-transmitted information sequences is stored in the transmitting cache sequence; polar coding is carried out to the to-be-transmitted information sequences; and the to-be-transmitted information sequences are transmitted. The accurate decoding probability of the information sequences failed to be transmitted for former M times is improved; therefore, the throughput of the communication system is improved; the average transmitting and receiving times before the accurate decoding is carried out to the to-be-transmitted information sequences is reduced; and therefore, the transmission delay of the communication is reduced.

Description

technical field [0001] The present invention relates to the field of digital communication, in particular to a polar code-based HARQ signal sending and receiving method and device. Background technique [0002] In the digital communication system, due to the interference of the transmission channel on the communication process, it is easy to cause errors in the transmitted data, thereby reducing the system throughput. Polar codes (Polarcodes) is a constructive coding method proposed by E.Arikan in 2009 that has been strictly proven to achieve channel capacity. In communication applications that are not sensitive to system delay, Hybrid Automatic RepeatreQuest (HARQ) technology is a commonly used transmission method for improving system throughput. Therefore, the polar code-based HARQ transmission method is often used to improve system throughput. [0003] At present, there are mainly two HARQ transmission methods based on polar codes. One is: the HARQ transmission method o...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04L1/00
CPCH03M13/13H04L1/1819H04L1/0061
Inventor 牛凯董超李启源
Owner BEIJING UNIV OF POSTS & TELECOMM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com