Method and device for testing effective isotropic sensitivity (EIS)

Abstract

The invention provides a method for testing EIS (Effective Isotropic Sensitivity). The method comprises the following steps of: performing EIRP (Effective Isotropic Radiated Power) measurement on a mobile terminal at a plurality of space positions to obtain a plurality of EIRP measured values corresponding to the plurality of space positions; performing EIS measurement on the mobile terminal by taking any space position in the plurality of space positions as a reference space position to obtain an EIS measured value of a corresponding reference space position; obtaining an EIS calculation value of a space position to be measured according to an EIS measured value and an EIRP measured value of the reference space position and an EIRP measured value corresponding to the space position to be measured; and performing EIS measurement on the space position to be measured by taking the EIS calculation value as an estimation value to obtain an EIS measured value of the space position to be measured. In the embodiment of the invention, the EIS calculation value obtained by calculation is accurate to take as an estimation value, so that the test searching times can be greatly reduced, and the test speed is greatly increased.

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 omnidirectional sensitivity) test method and device. Background technique [0002] The wireless reception and transmission performance of mobile terminals are important indicators for network access testing. 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 a spherical surface with the DUT as the center of the sphere, and then the test results are comprehensively calculated to give a single index. Used to measure the wireless transceiver performance of mobile terminals. [0003] For the test of emission performance, for example, the CTIA standard stipulates that EIRP (Effective Isotropic Radiated Power) measurements of ...

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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