Darkroom multi-probe test system for performance of MIMO wireless terminal

A test system and wireless terminal technology, applied in the transmission system, transmission monitoring, electrical components, etc., can solve problems such as the inability to accurately identify the performance of MIMO equipment, and the inability to realize the channel model simulation of interference multipath in the real communication environment. The accuracy of measurement, the effect of high accuracy

Active Publication Date: 2015-09-16
陈奕铭
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Problems solved by technology

The traditional OTA test scheme cannot realize the simulation of interference and multipath channel model

Method used

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  • Darkroom multi-probe test system for performance of MIMO wireless terminal
  • Darkroom multi-probe test system for performance of MIMO wireless terminal
  • Darkroom multi-probe test system for performance of MIMO wireless terminal

Examples

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Example Embodiment

[0033] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

[0034] like Figure 4 As shown, 1 is a computer, 2 is a base station simulator, 3 is a channel simulator, 4 is a dark room, and 5 is a motor control (Motion Control). In the present invention, the computer connects the base station simulator, the channel simulator and the Motion Control and sets the parameters of the base station simulator and the channel simulator, the base station simulator is connected to the channel simulator, the channel simulator is connected to the darkroom and each of the channel simulators The channel connects one polarization (polarization a, polarization b) of the probe in the darkroom (e.g. Image 6 shown), the darkroom is connected to the base station simulator.

[0035] The test process of this system is: before the test, the system path needs to be calibrated. When the system path is calibrated, t...

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Abstract

The invention discloses a darkroom multi-probe test system for performance of an MIMO wireless terminal. The system comprises a ring, two or more than two probes, a channel simulator and a base station simulator. The probes are distributed on the ring. Each physical channel of the channel simulator is connected with one polarity of the probe. The base station simulator is connected with the channel simulator. The test principle of the invention is as follows: a test signal generated by a transmitter or the base station simulator passes through the wireless channel simulator, and the wireless channel simulator simulates a wireless channel according to a channel model which is defined in advance; the signal is separated in the channel simulator and distributed in each probe in the darkroom, and is independently radiated into the dark room; at last, the plurality of radiant signals are combined in a central space of the darkroom and are used for generating a needed wireless channel environment around equipment under test. The darkroom multi-probe test system for performance of the MIMO wireless terminal of the invention could be used for simulating a complicated wireless environment in reality, ensuring accuracy of the measurement, and measuring the performance of the terminal under true environment.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a darkroom multi-probe test system for measuring the performance of MIMO wireless terminals. Background technique [0002] MIMO (Multiple-Input Multiple-Output) technology refers to the use of multiple transmitting antennas and receiving antennas at the transmitting end and receiving end, respectively, so that signals are transmitted and received through multiple antennas at the transmitting end and receiving end, thereby improving communication quality. It can make full use of space resources, realize multiple transmissions and multiple receptions through multiple antennas, and can double the system channel capacity without increasing spectrum resources and antenna transmission power, showing obvious advantages, and is regarded as the next generation of mobile The core technology of communication. [0003] In order to meet the requirements of wireless communicati...

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Application Information

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IPC IPC(8): H04B17/391
Inventor 陈奕铭
Owner 陈奕铭
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