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

A mobile terminal, handover failure technology, applied in wireless communication, electrical components, etc., can solve problems such as system performance deterioration, errors, mobile terminal information is not necessarily

Inactive Publication Date: 2010-08-18
XIDIAN UNIV
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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 ...

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

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Embodiment Construction

[0024] refer to figure 1 , the present invention comprises the following steps to the detection of handover failure scene:

[0025] Step 1. When the wireless link fails and the mobile terminal loses connection with the serving base station, it will generate RRCConnectionReestablishment Request Message information. For the process of generating information, refer to figure 2 as follows:

[0026] (1a) After the mobile terminal loses connection with the serving base station, it reads the base station signal detection list generated by the signal detection of the surrounding base stations. If the measured values ​​of all the base station signals in the list are lower than the threshold value, it indicates that the wireless link fails. The reason is the coverage hole. The information field ReestablishmentCause selects the coverage hole. If the base station signal measurement value in the list is higher than the threshold value, it indicates that the wireless link failure occurs b...

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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...

Claims

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Application Information

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IPC IPC(8): H04W24/04H04W24/10H04W36/08
Inventor 盛敏焦万果史琰黄超郭重涛李红艳李建东刘凯
Owner XIDIAN UNIV
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