Method and device for testing effective isotropic sensitivity (EIS)

Abstract

A method for testing effective isotropic sensitivity (EIS) is provided in the present invention. The method includes the following steps: performing an Effective Isotropic Radiated Power (EIRP) measurement on a mobile terminal in multiple spatial positions to obtain multiple measured values of EIRP corresponding to the multiple spatial positions; taking any one spatial position of the multiple spatial positions as a datum spatial position to perform an EIS measurement on the mobile terminal, so as to obtain a measured value of EIS corresponding to the datum spatial position; according to the measured value of EIS, the measured value of EIRP, both in the datum spatial position, and the measured value of EIRP corresponding to a spatial position to be measured, obtaining a calculated value of EIS in the spatial position to be measured; and taking the calculated value of EIS as an estimated value to perform an EIS measurement on the spatial position to be measured, so as to obtain a measured value of EIS in the spatial position to be measured. Since it is comparatively accurate to adopt the calculated value of EIS, which is calculated, as the estimated value in the embodiments of the present invention, it is possible to reduce the search times of the test greatly, thereby increasing the speed of the test greatly.

Description

technical field [0001] The present invention relates to the technical field of wireless transceiver performance testing of mobile terminals, in particular to a mobile terminal EIS (Effective Isotropic Sensitivity, Equivalent Isotropic Sensitivity) testing method and device. Background technique [0002] The wireless reception and transmission performance of the mobile terminal is an important indicator of the network access test. According to the standards of the Cellular Telecommunications Network Association (CTIA), the transmitted signal strength and receiving sensitivity at several spatial positions are measured on the spherical surface with the DUT as the center of the sphere, and then the test results are comprehensively calculated to give a single index. It is used to measure the wireless transceiver performance of mobile terminals. [0003] For the test of emission performance, for example, the CTIA standard stipulates that 2 polarizations of EIRP (Effective Isotrop...

AI Technical Summary

Problems solved by technology

Of course, the smaller the interval of space measurement positions (that is, the more measurement points), the more detailed and accurate the corresponding performance indicators of the DUT can be measured, but the measurement of TIS is relatively slow, so the space interval measured by TIS is usually smaller than that of TRP. Large measurement interval

[0004] In particular, the TIS test of mobile terminal receiving performance needs to test the sensitivity at each spatial location point, which involves the test of the bit error rate, and the test of the bit error rate is more time-consuming than the power measurement, so the TIS test is often more time-consuming

However, due to the need for a large number of TRP / TIS measurements in the research and development and network access testing of mobile terminals such as mobile phones, long-term TIS testing will seriously slow down the testing progress of mobile terminals, thus making it an important part of the mobile terminal research and development process. The bottleneck in the network prolongs the development cycle and network test time

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