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

A method and device for reducing self-interference in a simultaneous co-frequency full-duplex system

A same-frequency full-duplex, self-interference technology, applied in transmission systems, digital transmission systems, baseband system components, etc., can solve problems such as self-interference, and achieve the effect of improving matching and suppressing self-interference signals

Active Publication Date: 2018-05-08
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a method and device for reducing self-interference in a simultaneous and same-frequency full-duplex system, which overcomes the self-interference caused by the poor matching of devices to the simultaneous and same-frequency full-duplex communication system. interference problem

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
  • A method and device for reducing self-interference in a simultaneous co-frequency full-duplex system
  • A method and device for reducing self-interference in a simultaneous co-frequency full-duplex system
  • A method and device for reducing self-interference in a simultaneous co-frequency full-duplex system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0059] The technical scheme of the present invention is described in further detail below in conjunction with accompanying drawing, but protection scope of the present invention is not limited to the following description.

[0060] Such as figure 2 As shown, a device for reducing self-interference in a simultaneous same-frequency full-duplex system includes an antenna, a first tunable network, a second tunable network, a circulator, a filter, a coupler, a detector and a control circuit, The first port of the circulator is connected to the signal input end, the second port of the circulator is connected to the transmitting input end of the antenna, the third port of the circulator is connected to the input end of the filter, and the output end of the filter is connected to the input end of the coupler The first output end of the coupler is connected to the RF receiving system of the subsequent stage, the second output end of the coupler is connected to the input end of the det...

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 reducing self-interference in a simultaneous and same-frequency full-duplex system, including an antenna, a first tunable network, a second tunable network, a circulator, a filter, a coupler, a wave detector and In the control circuit, the first port of the circulator is connected to the signal input end, the second port of the circulator is connected to the transmitting input end of the antenna, the third port of the circulator is connected to the input end of the coupler through a filter, and the second port of the coupler is connected to the input end of the coupler. One output end is connected to the RF receiving system of the subsequent stage, the second output end of the coupler is connected to the input end of the control circuit through the wave detector, and the output end of the control circuit is respectively connected to the first tunable network and the second tunable network. One port is connected, the second port of the first tunable network is connected with the second port of the circulator, and the second port of the second tunable network is connected with the third port of the circulator. The invention overcomes the self-interference problem caused by the poor matching of devices to the simultaneous and same-frequency full-duplex communication system.

Description

technical field [0001] The invention relates to the technical field of simultaneous and same-frequency full-duplex communication, in particular to a method and device for reducing self-interference in a simultaneous and same-frequency full-duplex system. Background technique [0002] In today's increasingly tight spectrum resources, full-duplex communication transmitted at the same time and in the same frequency band has become a hotspot in wireless communication research. Compared with half-duplex communication, the spectrum utilization rate of full-duplex communication can theoretically be doubled; compared with half-duplex communication system, full-duplex communication system has obvious advantages. [0003] The biggest difficulty in the research of full-duplex communication is that the self-interference signal of the same frequency caused by the transmitted signal is often many times stronger than the received signal. A common full-duplex transceiver antenna system inc...

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): H04L25/03H04L5/00
Inventor 潘文生沈莹邵士海唐友喜高写天
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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