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Multi-wireless access technology based over-the-air test system and test method thereof

A wireless access technology and space performance technology, applied in the field of space performance test systems based on multiple wireless access technologies, can solve problems such as high cost, slow testing, and complexity, and achieve complete test types, simple operation, and high degree of automation. Effect

Inactive Publication Date: 2009-12-16
TELECOMM METROLOGY CENT OF MINIST OF IND & INFORMATION TECH
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] 1) Tests are slow and complex
[0022] 2) high cost

Method used

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  • Multi-wireless access technology based over-the-air test system and test method thereof
  • Multi-wireless access technology based over-the-air test system and test method thereof
  • Multi-wireless access technology based over-the-air test system and test method thereof

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Experimental program
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Embodiment Construction

[0068] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings. It should be noted that the implementation of the system for testing space performance based on multiple radio access technologies and the testing method thereof according to the present invention is only an example, but the present invention is not limited to the specific implementation.

[0069] (1) System composition and test principle

[0070] see figure 1 , the hardware of the test system mainly includes:

[0071] Wireless comprehensive tester: Simulate the base station to transmit signals. In TRP measurement, it is used to establish a call connection with the tested. In TIS measurement, the mobile station reaches the set bit error rate level by decreasing the transmission power.

[0072] For different test categories, you need to choose different comprehensive testers. For GSM, CDMA, WCDMA, and CDMA2000 tests, choo...

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Abstract

A multi-wireless access technology based over-the-air test system, used for evaluating over-the-air index of a wireless terminal device, has the principle of putting a device to be tested in a three-dimensional space, and establishing a communication link with a base station simulator (namely wireless communications test set); controlling Phi, Theta axles (two axles perpendicular to each other) to rotate according to set step, performing measurement on various angle positions; measuring spherical effective Total Radiated Power of a moving station in the three-dimensional space and Total Isotropic Sensitivity of a receiver. The system mainly comprises a darkroom, a high-accuracy positioning system and its controller(including a rotating axle controller and a polarization controller), a radio frequency test instrument and a main control terminal computer with automatic test program, wherein the radio frequency instruments comprises a wireless communications test set, a spectrum analyzer, a network analyzer and a radio frequency unit.

Description

technical field [0001] The present invention relates to a test system, more specifically to a space performance test system based on multiple wireless access technologies and a test method using the system. Background technique [0002] (1) Passive test and active test of mobile terminal [0003] At present, more and more attention is paid to the test of the radiation performance of the whole device in the radio frequency performance test of the mobile terminal. This radiation performance reflects the final transmission and reception performance of the mobile terminal. At present, there are mainly two methods to investigate the radiation performance of mobile terminals: one is to judge from the radiation performance of the antenna, which is a relatively traditional antenna test method, called passive test; the other is to use it in a specific microwave anechoic chamber , to test the radiation power and receiving sensitivity of the mobile terminal, which is called active tes...

Claims

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Application Information

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IPC IPC(8): H04W24/06H04B17/00
CPCY02B60/50Y02D30/70
Inventor 肖雳吕松栋吴镝陈晓晨黎卓芳郭琳杨洪斌梁玉红
Owner TELECOMM METROLOGY CENT OF MINIST OF IND & INFORMATION TECH
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