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

Method and device for demodulating overlapped multiplexing system, and electronic equipment

A demodulation method and a bit sequence technology are applied in the fields of demodulation methods, devices and electronic equipment of overlapping multiplexing systems, which can solve the problems of complex operation process of the MAP algorithm, and achieve easy implementation, reduced demodulation power consumption, and optimized calculation. Effect

Pending Publication Date: 2022-04-12
CHINA MOBILE COMM LTD RES INST +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an overlapping multiplexing system demodulation method, device and electronic equipment, to solve the problem of complicated operation process of MAP algorithm

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 demodulating overlapped multiplexing system, and electronic equipment
  • Method and device for demodulating overlapped multiplexing system, and electronic equipment
  • Method and device for demodulating overlapped multiplexing system, and electronic equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0135] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0136] It should be understood that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present invention. Thus, appearances of "in one embodiment" or "in an embodiment" in various places throughout the specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments.

[0137] In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the order of execution, and the order of execution...

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 provides an overlapped multiplexing system demodulation method and device and electronic equipment, and relates to the technical field of communication. The method comprises the following steps: generating a first bit sequence corresponding to a branch metric by using a random array; calculating a forward metric and a backward metric according to the first bit sequence; and calculating soft information output by the overlapped multiplexing system according to the forward metric and the backward metric. According to the scheme provided by the invention, aiming at the structure of the overlapped multiplexing system, the calculation of the MAP demodulation algorithm is optimized by combining a probability calculation system, so that the MAP demodulation algorithm is easier to implement; when the soft information is calculated, the calculation and storage of branch metric items are omitted after the related items are combined, the demodulation power consumption can be reduced, the resources and time can be more conveniently accepted and rejected, and the problem that the operation process of the MAP algorithm is complex is solved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to an overlapping multiplexing system demodulation method, device and electronic equipment. Background technique [0002] In the current research on Overlapped X Domain Multiplexing (OVXDM) systems, soft-input and soft-output Viterbi decoding (Soft Output Viterbi Algorithm, SOVA) algorithm or Maximum A Posteriori (Maximum A Posteriori, MAP) solution is usually used. Modulation algorithm to perform OVXDM demodulation. For the SOVA algorithm, its advantage is that the algorithm is simple to implement, but the quality of the output soft information is not as good as that of the MAP algorithm, and the MAP algorithm contains a large number of multiplication operations, exponential operations, and logarithmic operations, which is not conducive to hardware implementation and has a large resource overhead. Contents of the invention [0003] The object of the present invent...

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): H03M13/39
Inventor 张智禹魏宁赵殊伦金婧王启星
Owner CHINA MOBILE COMM LTD RES INST
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