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

A digital-analog hybrid beamforming method suitable for common wireless communication channels

A digital beamforming and beamforming technology, applied in radio transmission system, sustainable communication technology, diversity/multi-antenna system, etc., can solve performance degradation and other problems

Active Publication Date: 2020-04-24
SOUTHEAST UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this scheme is still only applicable to the [-90°, +90°] sectors, and performance degradation occurs when the number of discrete sampling angles exceeds twice the number of antennas

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 digital-analog hybrid beamforming method suitable for common wireless communication channels
  • A digital-analog hybrid beamforming method suitable for common wireless communication channels
  • A digital-analog hybrid beamforming method suitable for common wireless communication channels

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] Taking massive MIMO public channels as an example below, the present invention is further explained in conjunction with the accompanying drawings. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. After reading the present invention, those skilled in the art will understand the present invention Modifications of various equivalent forms of the invention all fall within the scope defined by the appended claims of the present application.

[0050] In the field of wireless communication, in the context of massive MIMO systems, multi-user beamforming has been extensively studied as a transmission scheme for dedicated channels, but research for public channels is relatively scarce. In the actual situation of high cost of hardware equipment, 5G communication also has high energy efficiency requirements for massive MIMO system design, making transmit power and high e...

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 a digital-analog hybrid beam forming method with high power efficiency aiming at a public channel with any sector size in a large-scale MIMO wireless communication system, and thus transmission power is minimized and power amplification efficiency is improved while quality of service (QoS) of all users in the sector is ensured. Firstly an optimal ideal beam directional diagram is deduced via Parseval equality. Then, inherent trade-off between beam directional diagram parameters is mined by using a convex optimization technique and using association between the beam directional diagram and the response of a finite impulse response (FIR) filer, and thus a full-digital high efficient beam forming vector close to the ideal beam directional diagram is acquired. At last, the beam forming vector with the same beam directional diagram and the lowest peak-to-average power ratio (PAPR) is acquired through searching by using an equivalent beam directional diagram principle, and an implementation method with low complexity under a digital-analog hybrid pre-coding architecture is provided based on a triangular construction theorem.

Description

technical field [0001] The present invention designs a power-efficient hybrid beamforming method for the common channel of a massive MIMO wireless communication system, specifically a method for any sector size, based on convex optimization, filter design principles, equal beam pattern theory and The invention relates to a high-efficiency hybrid beamforming method based on the principle of geometric triangle construction, which belongs to the technical field of wireless communication. Background technique [0002] At present, in the context of massive MIMO systems, multi-user beamforming has been extensively studied as a transmission scheme for dedicated channels, but research for common channels is relatively scarce. Common channels are mainly used to broadcast important synchronization / reference / control signals. Since the common channel needs to serve all users with any location in the sector, the transmission design is usually based on the assumption that the base statio...

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): H04B7/0413H04B7/06
CPCH04B7/0413H04B7/0617Y02D30/70
Inventor 黄永明张铖姜波儿
Owner SOUTHEAST 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