Cell switching method and device, and user equipment

Abstract

The invention provides a cell switching method and device, and user equipment. The method comprises the following steps of acquiring a scale factor reflecting the quality fading condition of a servicecell where the user equipment UE is currently located; determining whether current service cell quality is lower than or equal to a first service cell quality trigger threshold, and / or, determining whether the offset value of neighboring cell quality which is better than the current service cell quality is higher than or equal to a first trigger offset value, wherein the first service cell quality trigger threshold and the first trigger offset value are related to the scale factor; and when a determination result is yes, triggering measurement reporting and a corresponding cell switching preparation process. In the invention, the normal operation of the measurement reporting and the corresponding cell switching preparation process can be ensured, and simultaneously signaling cost and unnecessary switching preparation and resource reservation are avoided.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a cell handover method, device and user equipment. Background technique [0002] A cell handover refers to a cell handover that needs to be performed in order to maintain uninterrupted communication of the UE when a UE (User Equipment, user equipment) moves from one cell to another in a wireless communication system. The UE performs cell handover when detecting that a predetermined condition is satisfied. A switching mechanism of conditional switching is proposed in the 3GPP (3rd Generation Partnership Project, 3rd Generation Partnership Project) Rel-14 specification. The conditional handover includes a first trigger condition and a second trigger condition. The first trigger condition triggers the UE to perform measurement reporting and correspondingly triggers the base station side to make handover preparations; the second trigger condition triggers the ...

AI Technical Summary

Problems solved by technology

If the quality of the serving cell where the UE is currently in declines slowly, when the UE detects that the first trigger condition is met, then triggers the measurement report and triggers the target cell to prepare for handover, the quality of the current serving cell where the UE is in declines slowly, and even the UE The quality of the current serving cell is between N1 and N2 and remains stable. At this time, the UE will trigger unnecessary measurement reporting prematurely, resulting in waste of signaling overhead, and may trigger unnecessary handover preparation and resource reservation

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