Judging method and device of intermodulation interference

Abstract

The invention discloses a judging method and a judging device of intermodulation interference to improve the judging efficiency and the judging accuracy of the intermodulation interference, wherein the judging method comprises the steps of: determining an uplink traffic busy hour time and an uplink traffic idle hour time of the cell with high interference; respectively determining a busy hour uplink interference parameter value of the uplink traffic busy hour time and an idle uplink interference parameter value of the uplink traffic idle hour time; according to the busy hour uplink interference parameter value and the idle uplink interference parameter value, determining the intermodulation interference parameter value of the cell with high interference; when the intermodulation interference parameter value surpasses the predetermined threshold value, judging that the intermodulation interference exists in the cell with high interference.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method and device for judging intermodulation interference. Background technique [0002] With the development of communication technology, while providing rich communication services for users, it is necessary to pay more attention to the communication quality of users. Passive Inter-Modulation (PIM, Passive Inter-Modulation) is an important index to measure the quality of mobile communication. Passive Inter-Modulation is caused by the nonlinear characteristics of various passive components in the transmission system. It is generally considered that passive devices are linear, but under high power conditions, passive devices have certain nonlinearities to varying degrees. This nonlinearity is mainly caused by the following factors: the contact of metals of different materials, the contact surface of the same material is not smooth, the connection is not t...

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Problems solved by technology

[0006] In the above solution, it is necessary to determine whether there is intermodulation interference for each high-interference cell one by one, and it is impossible to determine whether there is intermodulation interference in multiple cells at the same time, resulting in low judgment efficiency; and in some cases, due to external interference, it is impossible to locate. As a result, external interference cannot be detected, which makes the subsequent determination of the existence of intermodulation interference less accurate

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