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System and method for testing total radiated sensitivity in multi-antenna system

A multi-antenna system and total radiation technology, applied in the field of total radiation sensitivity test system, can solve the problems of unresolved radio frequency index test methods and test process regulations

Active Publication Date: 2014-09-10
HUAWEI TEHCHNOLOGIES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The current international standards have not specified the test method and test process of the radio frequency index under the multi-antenna system

Method used

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  • System and method for testing total radiated sensitivity in multi-antenna system
  • System and method for testing total radiated sensitivity in multi-antenna system
  • System and method for testing total radiated sensitivity in multi-antenna system

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] This embodiment provides a test system for total radiation sensitivity in a multi-antenna system, including a base station and a device to be tested;

[0050] The device under test is used to turn on n receiving antennas to receive the data stream sent by the base station;

[0051] The base station is used to send the data stream to the device under test, and at each test point, measure the EIS when the data stream satisfies the test conditions θ with And according to the EIS of each test point θ with Calculate the TRS of the data flow;

[0052] The number of data streams is 1, n≥2.

[0053] The above test conditions are that the BER (bit error rate) of the data stream to be tested received by the device under test within the preset time remains within the preset range, and the preset time can be set according to needs, such as but not limited to 20000 bits , the preset range of BER of the data stream to be tested received by the device under test can also be set...

Embodiment 2

[0059] A test system for total radiation sensitivity in a multi-antenna system, including a base station and a device to be tested;

[0060] The device under test is used to turn on n receiving antennas to receive the data stream sent by the base station;

[0061] The base station is used to simultaneously send m data streams to the device under test, and at each test point, measure the EIS when the data streams under test meet the test conditions θ with And according to the EIS of each test point θ with Calculate the TRS of the data stream to be tested;

[0062] m≥2, and n≥m.

[0063] The base station can also be used to measure EIS at each test point when m data streams meet the test conditions θ with And according to the EIS of each test point θ with Calculate the TRS of the m data streams.

[0064] The test condition is that the BER of the data stream to be tested received by the device under test within a preset time remains within a preset range;

[0065] W...

Embodiment 3

[0108] This embodiment is the transmission mode three, that is, open-loop spatial multiplexing (Open-loop spatial multiplexing). In LTE version 8, there are 2 data streams in the open-loop spatial multiplexing mode. In other versions of LTE (such as LTE In version 9 and LTE version 10), the number of data streams sent by the base station is m (m≥2);

[0109] In the open-loop space division multiplexing mode, the TRS test method is that the base station sends m data streams at the same time, and for each data stream, its TRS value is measured. The test method for data stream j is:

[0110] The base station sends m data streams at the same time, and the n receiving antennas of the device under test are all turned on. When the data stream j meets the test conditions, the TRS value of the data stream j is tested;

[0111] Specific process such as figure 2 shown, including:

[0112] Step 201: the base station continuously sends an Up power control command to the device under tes...

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Abstract

A method and system of total radiated sensitivity(TRS) testing for multi-antenna system are provided, wherein the method includes the following steps: configuring the number of data streams sent by the base station as "1" and the number of the receiving antennas in the device under test (DUT) as "n=2"; the DUT turning on "n" antennas and receiving the data stream sent by the base station at the predetermined position; at each testing spot, the base station measuring the effective isotropic sensitivity EIS? and EISF when the data stream meets the testing condition, after that, calculating the TRS of the data stream according to the EIS? and EISF of each testing spot. The present invention provides the technical solution of testing the TRS of one data stream or two data streams in the multi-antenna system.

Description

technical field [0001] The invention relates to the technical field of radio frequency testing of wireless communication products, in particular to a system and method for testing total radiation sensitivity in a multi-antenna system (Multiple Input Multiple Output, MIMO). Background technique [0002] With the development of modern industry, all kinds of wireless communication products can only guarantee the quality of communication only if they have good transmitting and receiving performance, that is, the total radiated power (Total Radiated Power, hereinafter referred to as TRP) must be higher than a certain value, and the total radiated sensitivity (Total Radiated Sensitivity, TRS) should be lower than a certain value, that is to say, the over the air performance (Over The Air, hereinafter referred to as OTA) test index should be good. [0003] In order to ensure the normal use of mobile terminal equipment in the network, CTIA (Cellular Communications Standardization As...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L1/06H04W24/08
CPCH04B17/29H04B17/20H04B17/008H04B17/004
Inventor 郭阳丁添添禹忠
Owner HUAWEI TEHCHNOLOGIES CO LTD
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