A cell switching method and a base station controller

Abstract

The invention discloses a cell switching method and a base station controller. When it is determined that a terminal needs to perform cell switching, the base station controller obtains M candidate target cells; According to the evaluation results of each historical handover quality of the target cell, the average historical handover quality evaluation result of the candidate target cell is determined; according to the obtained level strength of the candidate target cell, the current handover quality prediction result of the candidate target cell is determined ; Determine the final evaluation result of the candidate target cell according to the average historical handover quality evaluation result and this handover quality prediction result of the candidate target cell; Sorting is performed, and the candidate target cell ranked first after the sorting is determined as the target cell, and a handover process is executed. By applying the scheme of the present invention, the quality of switching can be improved.

Description

technical field [0001] The invention relates to wireless technology, in particular to a cell switching method and a base station controller. Background technique [0002] In the prior art, when a terminal needs to perform cell handover, its base station controller (BSC, Base Station Controller) will perform the following processing: [0003] 1) Determine candidate target cells, usually multiple; [0004] 2) According to the handover success rate of each candidate target cell within a predetermined period of time in the past, level penalties are imposed on each candidate target cell, that is, according to the handover success rate, the level intensity of each candidate target cell is reduced to different degrees to achieve a reduction The priority of candidate target cells with a higher handover failure rate, thereby improving the handover success rate; [0005] 3) Sort the candidate target cells after level punishment in descending order of level intensity, and take the fi...

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Problems solved by technology

[0006] However, the above method has certain problems in practical application, such as: when selecting a target cell, only the current level strength and handover success rate of the candidate target cell are considered, and the historical handover quality is not considered more. Factors, such as the delay and link quality in the handover process that users can perceive, and whether there will be call drop during the handover process and after the handover is completed, etc., may make the selected target cell poorly perceived by the user, that is, is not optimal, reducing handover quality

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