Wireless terminal performance test method and device

Abstract

The invention provides a wireless terminal performance test method and a wireless terminal performance test device. According to the method, a performance test on an LTE-V2X terminal under an anechoicchamber environment is achieved. Firstly, a test system including an anechoic chamber, and first test equipment, a sending end, a channel simulator, an adjustable attenuator, a receiving end and second test equipment connected in sequence along a signal transmission direction in the anechoic chamber is built. When a test is performed, a signal propagation path loss value under a scene is determined according to channel models corresponding to the different scenes, when a signal propagation path loss value can be simulated by the channel simulator cannot reach the signal propagation path lossvalue needed by the scene, the actual signal propagation path loss value under the scene is simulated by the sum of the signal propagation path loss value of the channel simulator and an attenuation value of the adjustable attenuator, a simulated path loss range is increased, and the problem that when a performance test is performed in a laboratory, the channel simulator cannot simulate the signalpropagation path losses under all the scenes is solved.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a wireless terminal performance testing method and device. Background technique [0002] At the beginning of the 21st century, automobile technology and radio technology showed a trend of mutual integration. The proposal of ITS (Intelligent Transportation System, Intelligent Transportation System) realized the information interaction and fusion between vehicles, pedestrians and roadside infrastructure. With the popularity of LTE (Long Term Evolution, long-term evolution) technology, especially LTE-D2D (Long-Term Evolution Device-to-Device, a communication service that supports communication between devices and devices in LTE cellular systems) The formulation of the standard makes it possible to realize direct communication between vehicles, vehicles, and vehicles based on LTE technology, thereby meeting the low-latency, high-reliability communication requirements b...

AI Technical Summary

Problems solved by technology

Due to the large number of scenarios and complex combinations, it takes a lot of manpower and test time to realize all field performance tests, and in some scenarios, there are safety hazards when the vehicle terminal moves at high speed

At the same time, considering that in the actual field test scenario, there may be interference signals that interfere with the performance of the receiver, affecting the effectiveness and accuracy of the performance test

In addition, because the channel simulator limits the scope of its simulated signal propagation path loss, the existing general laboratory performance test methods for mobile communication terminals cannot simulate the channel environment when the signal propagation path loss value is large, and cannot realize the actual communication channel The environment is fully simulated

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