Wireless performance test method for MIMO (Multiple-Input Multiple-Output) wireless terminal

A technology of wireless terminals and testing methods, applied in radio transmission systems, transmission monitoring, electrical components, etc., can solve problems such as inability to quantify test errors, and achieve the effect of eliminating test errors

Active Publication Date: 2018-06-29
GENERAL TEST SYST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] For this reason, an object of the present invention is to propose a wireless performance test method for MIMO wireless terminals, to eliminate test errors, and

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  • Wireless performance test method for MIMO (Multiple-Input Multiple-Output) wireless terminal
  • Wireless performance test method for MIMO (Multiple-Input Multiple-Output) wireless terminal
  • Wireless performance test method for MIMO (Multiple-Input Multiple-Output) wireless terminal

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Embodiment Construction

[0055] 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.

[0056] In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0057] In the present invention, unless otherwise clearly specified...

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Abstract

The invention provides a wireless performance test method for an MIMO (Multiple-Input Multiple-Output) wireless terminal. The method comprises the steps of obtaining antenna pattern information of a plurality of antennas of a tested MIMO wireless terminal tested in a microwave anechoic chamber; obtaining test signals according to the antenna pattern information of the tested MIMO wireless terminal; calibrating the test signals through utilization of an error calibration joint matrix of the tested MIMO wireless terminal and obtaining test transmission signals; and feeding the test transmissionsignals in a plurality of test antennas of the microwave anechoic chamber, and transmitting the test transmission signals to the wireless terminal through the test antennas, thereby testing the wireless terminal. The test signals are calibrated through adoption of the error calibration joint matrix to obtain the test transmission signals, so a test error is eliminated, and the technical problem oftest accuracy and repeatability of the MIMO wireless terminal in the prior art resulting from the fact that the test error cannot be quantized is solved.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a wireless performance testing method of a MIMO wireless terminal. Background technique [0002] The main test standards provided by the Cellular Telecommunications and Internet Association (CTIA, Cellular Telecommunications and Internet Association) and the 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project) in the United States are multi-probe method and radiation two-step method. [0003] Specifically for the radiation two-step method of the MIMO test method, the test schematic diagram is as follows figure 1 As shown, the testing process is mainly divided into the following steps: [0004] The first step is to obtain the antenna pattern information of multiple antennas of the multiple-input multiple-output (MIMO, Multiple-Input Multiple-Output) wireless terminal under test, which includes the gain information of each antenna in each direction, and a...

Claims

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Application Information

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IPC IPC(8): H04B17/12H04B17/15H04B17/21H04B17/29
CPCH04B17/12H04B17/15H04B17/21H04B17/29H04B7/0413H04B17/0085
Inventor 漆一宏沈鹏辉
Owner GENERAL TEST SYST
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