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

HBF system beam selection method and device and computer readable storage medium

A beam and target beam technology, applied in the field of communications, can solve problems such as inapplicability and inability to ensure accurate elimination of interference between users, and achieve the effects of easy implementation, short calculation process time, and good global performance.

Active Publication Date: 2018-05-29
SOUTHEAST UNIV
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, multi-level resolution beams can be realized by means of level-by-level division and layer-by-layer search to achieve fast convergence. However, this method is not suitable for multi-user parallel search
The Orthogonal Matching Pursuit (OMP) algorithm takes the weight value of the all-digital system as the target, transforms the approximation of the performance into the approximation of the weight value, and adopts the analog codebook based on the response of the antenna array. Under the condition of sparsity, the HBF weight is approximately equal to the weight of the all-digital system, but this method cannot guarantee that the inter-user interference can be accurately eliminated under the condition of multi-user transmission

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
  • HBF system beam selection method and device and computer readable storage medium
  • HBF system beam selection method and device and computer readable storage medium
  • HBF system beam selection method and device and computer readable storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] In a massive MIMO HBF system, the base station needs to configure appropriate ABF weights for multi-user transmission. In the embodiment of the present invention, it is assumed that the number of base station antennas is M, and the number of digital channels is N s , serving N in a space-division multiplexing manner usingle-antenna users. The ABF weights use the DFT codebook, and the codebook U has the following format:

[0034]

[0035] Among them, one row is one DFT beam, and there are M beams in total, and the corresponding row number is the beam subscript. The ABF weight matrix is ​​F=ΨU, where for N s ×M-dimensional beam selection matrix, e j Select a vector for the 1×M-dimensional beam on the jth digital channel, only one element is 1, and the rest of the elements are 0. In this embodiment, beam selection is performed on the DFT-based HBF multi-user transmission system, which is equivalent to designing a beam selection matrix Ψ.

[0036] The present inv...

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 an HBF system beam selection method and device and a computer readable storage medium. The method comprises the following steps of respectively selecting at least one preselected beam with the maximum projection energy for each user according to the projection energy of a direct vision diameter of the user on the beam, wherein the number of all preselected beams is larger than the number of digital channels of an HBF system; and selecting a first number of target beams from all preselected beams according to a rate of arrival of the HBF system, wherein the first numberis the number of the digital channels. The HBF system beam selection method and device and the computer readable storage medium have the advantages of short time consumption of a calculation process and easiness in implementation, and the beam is selected from the global angle of a multi-user transmission system, so that the system has good overall performance.

Description

technical field [0001] The present invention relates to the technical field of communication, and in particular to a hybrid beamforming (HBF) system beam selection method, device and computer-readable storage medium. Background technique [0002] In order to meet the requirements of the mobile communication system of the fifth generation (5th-Generation, referred to as 5G) mobile communication technology for data transmission rate, massive multiple-input multiple-output (Multiple-Input Multiple-Output, referred to as MIMO) technology came into being. Massive MIMO technology can flexibly adjust the beam direction to target users by erecting a large-scale antenna array at the base station. In addition, in massive MIMO systems, incoherent noise and fast fading also disappear when the number of antennas tends to infinity. Moreover, massive MIMO can also provide sufficient spatial freedom for diversity and multiplexing techniques. [0003] In the early massive MIMO technology r...

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): H04B7/06H04B7/0413
CPCH04B7/0413H04B7/0617H04B7/0695
Inventor 韩瑜金石
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