Method for detecting and switching failure scene based on mobile terminal information

Abstract

The invention discloses a method for detecting and switching a failure scene based on mobile terminal information, which mainly solves the problems of the inaccuracy and the incompleteness of the detection for switching the failure scene in the mobile robustness optimization in the conventional SON. The method mainly comprises the following contents: 1, modifying reestablishment connection request information, adding a former cell field, and adding options of coverage hole and other RLF to a request connection reason field; and 2, receiving the reestablishment connection request information by using a target base station; reading a value of the request connection reason field, and if the value is the other RLF, determining that the link failure is resulted from irrationality switching of the parameter; reading the former cell field, and if the value is 0, switching the failure scene in a mode that the switching is triggered too late; if the value is the same as a local cell ID, switching the failure scene in the mode that the switching is triggered to early; and if the value is different from the local cell ID, then switching the failure scene in the mode that the failure scene isswitched to an error cell. The method is applied to parameter optimization of a cellular network for improving network performance.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to the optimization of self-organizing network SON in the third-generation mobile communication long-term evolution 3GPP LTE system. In the process of cell mobility robustness optimization. Background technique [0002] The current 2G / 3G system uses manual configuration of handover parameters, which is a time-consuming task. In many scenarios, the handover parameters are not updated after initialization due to too much cost. In some cases, RRM within a base station can detect the problem and adjust mobility parameters, but there are some cases that RRM within a base station cannot solve. [0003] Incorrect parameter configuration will cause radio link failure related to handover ping-pong and handover failure, thereby negatively affecting user experience and wasting network resources. Since there is no handover failure that causes radio link failure, the user cannot f...

AI Technical Summary

Problems solved by technology

[0009] At present, the detection of the above handover-related failure scenarios is made by the base station by analyzing its own information and making judgments. However, because the mobile terminal information obtained by the base station may not be accurate, the judgment made may be wrong, which affects the adjustment of parameters. That is, it is possible to adjust the parameters in the opposite direction, which not only fails to improve the system performance, but worsens the system performance

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