Method and system capable of adjusting parameters according to moving speed of terminal
A technology of moving speed and speed, applied in the field of mobile communication, can solve the problems of UE being unable to adjust handover parameter configuration in time, high risk of handover failure, etc.
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Embodiment 1
[0049] In the first embodiment, the terminal in the idle state adjusts the cell reselection parameters according to the current moving speed.
[0050] The speed determination module (104), is used for measuring the signal strength of the serving cell in the N measurement periods in the N measurement periods, and calculates the signal strength difference of the serving cell in N-1 adjacent measurement periods, the N - When the signal strength difference of 1 serving cell satisfies the high-speed threshold, it is determined that the moving speed is high-speed; when the signal strength difference of the N-1 serving cells meets the medium-speed threshold and does not meet the high-speed threshold, it is determined that the moving speed is medium-speed;
[0051] The parameter adjustment module (105) is also used for performing cell reselection under high-speed conditions, increasing the high-speed coefficient value as the updated cell reselection threshold on the basis of the cell r...
Embodiment 2
[0061] The system parameter is the cell handover trigger duration, and the mobile terminal in the connected state measures the signal strength of the serving cell in N measurement cycles in N measurement cycles, and calculates the serving cell in N-1 adjacent measurement cycles Signal strength difference, when the signal strength difference of the N-1 serving cells satisfies the high-speed threshold, the mobile terminal determines that the moving speed is high-speed, and when performing adjacent cell measurement, the cell handover trigger time determined by the base station is multiplied by the high-speed coefficient After the value is used as the cell handover trigger duration after the update; when the signal strength difference of the N-1 serving cells satisfies the medium-speed threshold and does not meet the high-speed threshold, the mobile terminal determines that the moving speed is medium-speed, and when performing neighbor cell measurements, The cell handover trigger t...
specific Embodiment 1
[0063] Such as figure 2 As shown, in the first embodiment, in the system parameter message of the cell, the UE speed determination criterion is sent to the UE, and the UE in the idle state judges the current moving speed after receiving the speed determination criterion delivered by the base station, for Adjust cell reselection parameters.
[0064] In step 1, the base station sends the UE speed determination criterion in the system parameter message of the cell according to the system configuration, and the criterion is described in the Mobility State Parameters (Mobility State Parameters) information element.
[0065] Specifically, the base station adds the following UE speed determination parameters in the Mobility State Parameters information element of SIB3 (SystemInformationBlockType3), and the parameter names include but are not limited to:
[0066] n-RxEvaluatePeriod, indicating the number of measurement periods;
[0067] t-RxEvaluatePeriod, indicating the length of ...
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