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

Cooperative reception method and system based on air interface information fusion

A cooperative receiving and receiver technology, applied in the field of cooperative receiving methods and systems based on air interface information fusion, can solve the problems of increased computational latency, poor network scalability, prolonged interaction time, etc., and achieves increased transmission delay and cooperative decoding. The effect of large delay and improved accuracy

Active Publication Date: 2021-06-25
ZHEJIANG UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this method, when the number of receivers is large, the calculation waiting delay will be greatly increased, which will cause the problem of poor network scalability.
[0007] It can be seen that the current cooperative reception technology has defects such as high bit error rate, prolonged interaction time, and poor network scalability.

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
  • Cooperative reception method and system based on air interface information fusion
  • Cooperative reception method and system based on air interface information fusion
  • Cooperative reception method and system based on air interface information fusion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] figure 1 It is a method flow chart of a cooperative receiving method based on air interface information fusion provided by the present invention. see figure 1 , a cooperative receiving method based on air interface information fusion provided by the present invention includes:

[0065] Step 1: Send the first channel coded signal to N cooperative receivers (receiving clusters) at the same time.

[0066] Step 2: Eliminate the phase rotation of the channel to the first channel-coded signal to obtain a second channel-coded signal. The specific methods include:

[0067] sending pilot signals to the N cooperative receivers;

[0068] Estimate the channel by using the least square method or the method of minimizing the mean square error according to the pilot signal, and calculate the signal-to-noise ratio of the pilot signal according to the channel estimation result;

[0069] sending a first channel coded signal to the N cooperative receivers;

[0070] The phase rotation...

Embodiment 2

[0099] figure 2 A system structure diagram of a cooperative receiving system based on air interface information fusion provided in Embodiment 2 of the present invention, image 3 A diagram of the relationship between the transmitter and the cooperative receiver in the cooperative receiving system based on air interface information fusion provided by Embodiment 2 of the present invention. see figure 2 and image 3 , a cooperative receiving system based on air interface information fusion provided by the present invention, comprising:

[0100] Transmitter, cooperative receiver, log likelihood ratio calculation module, air interface information fusion transmission module, information integration module, decoding module, propagation module;

[0101] There are N cooperative receivers, where N is a set constant;

[0102] The transmitter is used to simultaneously send the first channel coded signal to N cooperative receivers;

[0103] The cooperative receiver is used to elimin...

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 present invention relates to a cooperative receiving method and system based on air interface information fusion. By eliminating the phase rotation of the channel to the first channel coded signal, the second channel coded signal is obtained; the signal-to-noise ratio of the second channel coded signal is selected The cooperative receivers within the range are controlled to calculate the log likelihood ratio, and the log likelihood ratio information of (Q‑1) cooperative receivers is transmitted to the remaining cooperative receivers through air interface information fusion; The cooperative receiver below integrates the log likelihood ratio information of the Q cooperative receivers, and decodes the first channel coded signal according to the integrated log likelihood ratio information to obtain a decoding result. The invention can greatly reduce the cooperative decoding time delay, reduce the bit error rate, support more receivers to cooperate, and improve the scalability of the system.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a cooperative reception method and system based on air interface information fusion. Background technique [0002] In recent years, cooperative communication technology has become one of the hot research areas of wireless communication. Cooperative reception technology combines the received signals of multiple receivers in the wireless network to form a virtual antenna array to increase diversity and power gain, thereby increasing the possibility of successfully decoding noisy transmissions, and improving wireless network capacity and bit error rate performance potential. Cooperative reception may also result in increased communication range, increased data rate and / or reduced transmit power. [0003] Existing cooperative receiving technologies can be roughly divided into the following categories: [0004] a. Each receiver broadcasts its received signal ...

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 Patents(China)
IPC IPC(8): H04L1/00H04L27/26
CPCH04L1/0009H04L27/2695
Inventor 刘安刘冠颖赵民建
Owner ZHEJIANG UNIV
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