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

MIMO wireless terminal test-based signal generation method and device

A signal generation and wireless terminal technology, applied in radio transmission systems, transmission monitoring, digital transmission systems, etc., can solve the problem of low generation efficiency of test transmission signals, achieve the effect of improving generation efficiency and speeding up computing speed

Active Publication Date: 2018-09-25
GENERAL TEST SYST
View PDF4 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] For this reason, the first object of the present invention is to propose a signal generation method based on MIMO wireless terminal testing, to solve the technical problem of low efficiency of test transmission signal generation in the prior art

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
  • MIMO wireless terminal test-based signal generation method and device
  • MIMO wireless terminal test-based signal generation method and device
  • MIMO wireless terminal test-based signal generation method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0030] The method and device for generating a signal based on MIMO wireless terminal testing according to the embodiments of the present invention will be described below with reference to the accompanying drawings, which are used for performance testing of a device under test, that is, a MIMO wireless terminal.

[0031] figure 2 It is a schematic flowchart of a signal generation method based on MIMO wireless terminal testing provided by an embodiment of the present invention.

[0032] In the radiation two-step method, when the...

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 MIMO wireless terminal test-based signal generation method and device. Phase offset transform is performed on a calibration matrix so as to obtain multiple spatial propagation matrixes of an MIMO test system, then a target spatial propagation matrix with isolation degree meeting a preset condition is selected according to a maximum amplitude of each element in an inversematrix of the spatial propagation matrix, and finally, according to the target calibration matrix before phase offset transform of the target spatial propagation matrix, a pre-calculated throughput test signal is calculated, and an emit signal for tests is generated. The target spatial propagation matrix with isolation degree meeting a preset condition can be selected through an algorithm only, sothat the signal generation efficiency is improved, particularly, calculation speed is improved in a high-order spatial propagation matrix, and a radiation two-step test is intelligent, automatic andoptimized.

Description

technical field [0001] The present invention relates to the technical field of wireless communication testing, in particular to a method and device for generating signals based on MIMO wireless terminal testing. Background technique [0002] The purpose of the Multiple-Input Multiple-Output (MIMO) over-the-air technology (OvertheAir Technology, OTA) test is to ensure that the test results in the laboratory can truly reflect the wireless terminals in various complex actual use environments and Wireless performance under user usage. [0003] At present, the main MIMO wireless terminal test methods provided by 3GPP (3rd Generation Partnership Project), the highest international wireless standard organization, include multi-probe method, radiation two-step method, and reverberation method. Among them, the radiation two-step method is based on the conduction two-step method, remove the conductive line, let the signal propagate to the device under test in the free space simulated...

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
IPC IPC(8): H04B17/00H04B7/0413
CPCH04B7/0413H04B17/0085H04B17/12H04B17/15H04B17/391H04B7/0456H04L2027/0024H04B17/309
Inventor 漆一宏于伟沈鹏辉
Owner GENERAL TEST SYST
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