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Signal generation method and device based on mimo wireless terminal test

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: 2021-01-15
GENERAL TEST SYST
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  • 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

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  • Signal generation method and device based on mimo wireless terminal test
  • Signal generation method and device based on mimo wireless terminal test
  • Signal generation method and device based on mimo wireless terminal test

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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...

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Abstract

Provided are a method and a device for generating a MIMO test signal which is configured to test a performance of MIMO wireless terminal. With the method, the plurality of space propagation matrixes of the MIMO testing system are acquired by performing the phase shift transformation on the plurality of calibration matrixes of the MIMO testing system, the target space propagation matrix having the isolation degree meeting the preset condition is determined according to the maximum amplitude value of elements in each inverse matrix of the plurality of space propagation matrixes, and the transmitting signal for test is generated by a calculation according to the throughput testing signal acquired by the pre-calculation and the target calibration matrix corresponding to the target space propagation matrix.

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...

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Application Information

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Patent Type & Authority Patents(China)
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