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

Codebook processing method and device

A processing method and codebook technology, applied in the field of communication, can solve the problem of high complexity of codebook construction

Active Publication Date: 2021-02-19
BEIJING UNIV OF POSTS & TELECOMM
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the implementation of the existing technology needs to go through a series of operations such as copying, selection, replacement, etc., resulting in a high complexity of codebook construction

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
  • Codebook processing method and device
  • Codebook processing method and device
  • Codebook processing method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0083] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0084] In order to facilitate the understanding of the technical solution of this application, first explain the relevant concepts involved in this application:

[0085] Block fading channel: In wireless communication, in the process of sending a signal from the transmitter to the receiver, if the channel coefficient remains constant in a block composed of T ...

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 a codebook processing method and device. The method comprises the steps of acquiring a first matrix corresponding to a protograph, whereinthe protograph comprises K user nodes and N resource nodes, K is an integer larger than or equal to 1, and N is an integer larger than or equal to 1; and determining a first parameter M, and performing replacement processing on elements in the first matrix according to the M to obtain a second matrix after the replacement processing, with the M being used for indicating a multiple of the replacement processing, and the replacement processing being used for expanding the user node and the resource node; and acquiring target codebook according to the second matrix after replacement, wherein the target codebook comprises code words transmitted by the expanded user nodes on the expanded resource nodes. According to the embodiment of the invention, the replacement processing directly replaces the elements in the first matrix according to the zero matrix and the processed unit matrix, so that block fading can be effectively resisted, and the construction of a larger SCMA codebook can be simply and efficiently realized.

Description

technical field [0001] The embodiments of the present application relate to communication technologies, and in particular to a codebook processing method and device. Background technique [0002] Sparse Code Multiple Access (SCMA), as a non-orthogonal multiple access (Non-Orthogonal Multiple-Access, NOMA) technology, has the properties of high spectrum efficiency and low density extension. [0003] At present, in the related technologies of using space coupling to expand SCMA, the original model graph is usually copied, and then each user node in the original model graph is traversed, and one of the current user nodes in the original model graph is selected, and copied in all In the original model graph of , the currently selected edge is not replaced, and the other edges are replaced according to the preset rules to obtain the SCMA codebook. [0004] However, the implementation in the prior art requires a series of operations such as copying, selection, replacement, etc., ...

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): H04L5/00H04B7/0456
CPCH04B7/0456H04L5/0053
Inventor 司中威牟善楠戴金晟徐文波
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