A mutual interference test method and device

Abstract

The invention discloses a mutual interference testing method and device. The method comprises the steps of keeping an interference module in an idle state; gradually adjusting downlink power of an interfered module; counting the throughput capacity of the interfered module; determining a throughput capacity curved line A according to the counted throughput capacity; keeping the interference module in the maximum emission power state; gradually adjusting the downlink power of the interfered module; counting the throughput capacity of the interfered module; determining a throughput capacity curved line B according to the counted throughput capacity; comparing the throughput capacity curved line A with the throughput capacity curved line B to obtain mutual interference result. According to the method, the throughput capacities under the interference scene and the non-interference scene are counted so as to achieve the multi-system mutual interference test.

Description

technical field [0001] The invention relates to the field of communication technologies, in particular to a mutual interference testing method and device. Background technique [0002] In the early stage of LTE network and terminal commercial use, facing the problem of incomplete network coverage and the inability to perform voice communication on the LTE network, it is necessary to supplement the existing mature 2G and 3G networks. When the LTE network coverage is weak or voice calls are required It can provide better service through 2G and 3G network. In addition, the demand for international roaming also promotes multi-mode terminals to become the mainstream terminal form in the LTE era. However, one of the biggest problems of multi-mode terminals is that when multiple systems work at the same time, the performance may be reduced due to mutual interference. Therefore, a test method and system are needed to measure the mutual interference. In addition, current terminals ...

AI Technical Summary

Problems solved by technology

[0005] 1) It is not intuitive to use the sensitivity fallback as the evaluation indicator, and it cannot reflect the impact of mutual interference on user experience from the user's perspective;

[0006] Specifically, the existing scheme stipulates that one system works at the maximum transmission power condition during the test process, and the other system works at extremely weak network conditions. What you get is not the abstract concept of sensitivity rollback, but the key indicator of the decline in Internet speed, that is, the decrease in throughput. Sensitivity rollback cannot directly reflect the user experience of the terminal;

[0007] 2) Only the scenario where the terminal works in SISO or SIMO is considered, and the test of the most commonly used MIMO scenario in the real network is not considered;

In HSPA and LTE, MIMO is widely used as the main technical means to improve throughput, and MIMO has almost become a mandatory working mode for terminals. However, the existing technical solutions do not consider the testing of MIMO scenarios, which naturally leads to inaccurate test results. Reflect the mutual interference situation in the most commonly used working mode of the terminal

[0009] 3) The test only considers the mutual interference scenario between the two systems in the terminal, and does not evaluate the mutual interference of multiple systems;

[0010] Specifically, when multi-mode terminals become the mainstream terminal form, it is inevitable that there will be scenarios where multiple systems work at the same time. It is more serious when working in multiple formats, but the existing solutions do not consider the test of such multi-standard interference scenarios

[0011] 4) It only considers the terminal working in an ideal network environment without fading, and does not consider the real wireless propagation environment;

[0012] Specifically, an ideal network environment with no fading but only a direct path does not exist in real life, and the sensitivity fallback of terminals in an ideal environment without fading cannot fully reflect the severity of mutual interference and user experience in a real fading wireless environment

[0013] 5) It is impossible to fully automate the testing of various interference scenarios, but manual switching of the interference scenarios is required;

[0014] Specifically, in the LTE era, there will be multi-mode terminals. A terminal may have multiple standards such as TD-LTE, FDD LTE, WCDMA, TD-SCDMA, GSM, and WIFI at the same time, and the same system may work in multiple frequency bands. The mutual interference scenarios between standards and different frequency bands will be complicated. Existing solutions have not realized the automatic test of mutual interference scenarios between multiple standards, and cannot perform continuous testing quickly and efficiently.

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