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Device and method for MIMO (multiple input multiple output) test

A signal, one-way technology, applied in the field of MIMO test devices, can solve problems such as the inability to effectively verify the ability of equipment to separate MIMO users, and achieve the effect of improving test efficiency

Active Publication Date: 2015-06-03
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention is proposed in view of problems such as the inability to effectively verify the ability of equipment to separate MIMO users when performing MIMO testing in the related art. For this reason, the main purpose of the present invention is to provide an improved device and method for MIMO testing. Solve at least one of the above problems

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  • Device and method for MIMO (multiple input multiple output) test
  • Device and method for MIMO (multiple input multiple output) test
  • Device and method for MIMO (multiple input multiple output) test

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Embodiment Construction

[0021] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0022] figure 2 It is a structural block diagram of a device for MIMO testing according to an embodiment of the present invention. Such as figure 2 As shown, the device mainly includes: a first composite coupler 20 , a second composite coupler 22 , a first divider / combiner 24 and a second divider / combiner 26 .

[0023] The first composite coupler 20 is configured to divide one MIMO signal from the first device into a first group of two signals, and keep the first group of two signals with a preset phase difference, wherein the preset phase difference satisfies the requirement that the channel relevant conditions;

[0024] The second composite coupler 22 is configured to divide another MIM...

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Abstract

The invention discloses a device and method for an MIMO (multiple input multiple output) test. The device comprises a first composite coupler, a second composite coupler, a first shunt / combiner and a second shunt / combiner, wherein the first composite coupler is used for dividing one path of MIMO signals from first equipment into a first group of two paths of signals, and keeping the preset phase difference of the first group of two paths of signals, wherein the preset phase difference meets the uncorrelated conditions of channels; the second composite coupler is used for dividing the other path of MIMO signals from the first equipment into a second group of two paths of signals, and keeping the preset phase difference of the second group of two paths of signals; and the first shunt / combiner and the second shunt / combiner are respectively used for combining two paths of signals with different phases in the first group of two paths of signals and the second group of two paths of signals into one path of signals, and transmitting the path of signals to second equipment. According to the technical scheme provided by the invention, the capability that equipment separates MIMO users can be effectively verified, and the testing efficiency is improved.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a device and method for MIMO testing. Background technique [0002] With the rapid development of wireless communication technology, the Multiple Input Multiple Output (MIMO) technology, which can double the throughput, has gradually entered the practical application stage from the laboratory research stage. However, the performance of MIMO is related to the correlation of the channel in which it is located. To make MIMO exhibit the best performance, the channel in which it is located needs to be uncorrelated. The following combination figure 1 An example is described. [0003] figure 1 It is an architecture diagram of a wireless communication system based on MIMO technology. Such as figure 1 As shown, the transmitting end TX of the system has two antennas (antenna 0, antenna 1), and the receiving end has two antennas (antenna 0, antenna 1). The signal transmitted by the tr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/30H04B17/309
Inventor 陈侃浩
Owner ZTE CORP
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