Antenna correlation testing method and system

A test system and antenna technology, applied in the field of communication, can solve problems such as low test efficiency, low accuracy, and reduced test system flexibility, and achieve the effect of improving measurement accuracy and test efficiency

Active Publication Date: 2013-07-03
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] (1) The terminal under test needs to be modified; in the process of completing the antenna correlation test, the terminal under test needs to have functions such as transmission, measurement, and recording, and it is inevitable that the terminal under test needs to be modified
[0006] (2) The test time of the terminal under test as a receiving device is long and the accuracy is low; the test using the terminal under test as a receiving device is usually a test of the receiving sensitivity of the terminal under test, and the test method of receiving sensitivity is under a certain degree of confidence Measure the minimum receiving level when the terminal under test reaches a certain bit error rate. This test method results in a long test time for receiving sensitivity and low test efficiency.
[0007] (3) The construction of a specific wireless environment can only examine the antenna correlation one-sidedly; the specific layout of the test environment is equivalent to fixing some parameters in the wireless channel, which reduces the flexibility of the test system and cannot comprehensively and accurately evaluate the measured Terminal Antenna Correlation

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  • Antenna correlation testing method and system

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Embodiment 1

[0025] Embodiment 1 of the present invention provides a test system for testing antenna correlation, such as figure 1 As shown, the test system at least includes: a base station simulator 11, a terminal under test 12, a measurement device 13 and a control device 14; the above-mentioned devices are functional units, which can be further split or combined, for example, the measurement device 13 and the control device can be 14 is deployed on the same measurement control device, which will not be described in detail in this embodiment of the present invention.

[0026] In the embodiment of the present invention, the terminal under test 12 is located in a full-wave OTA anechoic chamber; the base station simulator 11, the measurement device 13 and the control device 14 are located outside a full-wave OTA anechoic chamber; The communication antenna in the full-wave OTA anechoic chamber establishes a communication link (specifically, the communication antenna is located in the full-w...

Embodiment 2

[0056] Based on the same inventive concept as the above-mentioned system, Embodiment 2 of the present invention also provides a test method for antenna correlation, which is used to test antenna correlation. The method is applied to at least a base station simulator, a terminal under test, In the test system of the measurement device and the control device, the above-mentioned devices are functional units, which can be further split or combined. For example, the measurement device and the control device can be deployed on the same measurement and control device, which will not be repeated in the embodiments of the present invention.

[0057] In the embodiment of the present invention, the terminal under test is located in a full-wave OTA anechoic chamber; the base station simulator, measurement equipment, and control equipment are located outside a full-wave OTA anechoic chamber; The communication antenna establishes a communication link (specifically, the communication antenna...

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Abstract

The invention discloses an antenna correlation testing method and an antenna correlation testing system. The system comprises a base station simulator, a tested terminal, testing equipment and control equipment, wherein the base station simulator is used for configuring testing parameters for a plurality of antennae of the tested terminal and informing the tested terminal of the testing parameters; the tested terminal is used for receiving the testing parameters from the base station simulator and transmitting a radio frequency signal on each antenna by utilizing the testing parameter corresponding to each antenna; the testing equipment is used for receiving the radio frequency signal which is transmitted on each antenna by the tested terminal and measuring amplitude and / or phase position of the radio frequency signal which is transmitted on each antenna; and the control equipment is used for obtaining the measuring result of the amplitude and / or the phase position from the testing equipment and calculating the antenna correlation according to the measuring result of the amplitude and / or the phase position. In the embodiment of the invention, the measuring accuracy and the testing efficiency can be improved greatly.

Description

technical field [0001] The invention relates to the technical field of communications, in particular to a method and system for testing antenna correlation. Background technique [0002] The MIMO (Multiple-Input Multiple-Output) system requires the antenna system of the base station and the terminal to be composed of multiple antennas; and the MIMO performance of the terminal is determined by the correlation of multiple antennas (that is, antenna correlation). It is related to the design of the terminal antenna and the wireless environment where the terminal is located. [0003] For antenna correlation, the existing test methods include: (1) The target signal is transmitted by the known standard antenna, the signal is received by the terminal under test, and the received signal is transmitted to the test instrument. Through the process of measurement, recording, calculation, etc., Obtain the correlation coefficient index of the antenna correlation; (2) Construct a certain w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/00H04B7/04H04W24/08
Inventor 刘启飞邵松江海涛肖善鹏赵立君
Owner CHINA MOBILE COMM GRP CO LTD
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