A method and system for troubleshooting and avoiding interference from false base stations

Abstract

The invention discloses a method and system for checking and avoiding interference from pseudo-base stations. The system includes an input module, a detection module, a retrieval module, a judgment module, an execution module, and a feature library of pseudo-base stations. The input module counts traffic statistics indicators and screens out quality Poor area, the judgment module screens out the suspected pseudo base station area according to the switching between poor quality areas, the retrieval module retrieves the update situation of the suspected pseudo base station area and the feature information in the pseudo base station feature database, and the judgment module updates the retrieved suspected pseudo base station area The situation is matched with the feature information in the fake base station feature database to determine whether it is a fake base station. For the identified fake base station, the execution module isolates the fake base station from the current network to complete the investigation and avoidance. The present invention can quickly and accurately identify pseudo-base stations in batches without manual testing and on-site frequency scanning, saves time, minimizes the impact of pseudo-base stations on user perception and network indicators, and solidifies troubleshooting experience.

Description

technical field [0001] The invention belongs to the field of mobile communication, and in particular relates to self-positioning and configuration optimization of pseudo base stations. Background technique [0002] Wireless interference is a common network problem in wireless network optimization and maintenance work. Because interference problems have a significant impact on user perception, accurate positioning and troubleshooting of interference problems is a key task for our daily optimization, and it is also the basis for improving network quality and creating value. The common wireless interference is generally uplink interference, and the existing detection and discovery methods are relatively mature. However, it has recently been discovered that there is a monitoring pseudo base station in the existing network, which uses the same frequency band and the same MCC (Mobile Country Code, mobile country code) ), MNC (Mobile Network Code, mobile network number) configurat...

AI Technical Summary

Problems solved by technology

[0009] 2. The impact of pseudo base stations on user perception and network indicators

[0012] A large number of switching failures, reconstructions, and disconnections will inevitably lead to deterioration of user perception, such as video freezes, increased web browsing delays, and even inability to connect

[0013] Second, even if the user does not initiate handover or reselection to the pseudo base station, the power of the pseudo base station itself will interfere with the surrounding cells to a certain extent. Interference; even if there is no modulo three interference in PCI, the RS (Reference Signal, reference signal) signal of the pseudo base station will interfere with the traffic channels of surrounding cells

[0014] 3. Analysis of traditional processing methods

However, for LTE networks with rich signaling, the above method is a bit cumbersome for identifying LTE pseudo base stations that only read IMSI. Customized terminals cannot enter all pseudo base station areas at the same time, and the troubleshooting effect is limited. Even if the pseudo base stations that affect the network are found, they cannot The network will be repaired quickly, and the troubleshooting experience is scattered and difficult to solidify

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