Method, device and user equipment for cell handover

Abstract

The present disclosure relates to a method, device and user equipment for cell handover. The method for cell handover includes: when receiving a preset handover command sent by a base station, determining handover decision parameters corresponding to each target cell, where the preset handover command is used to represent a conditional handover command; When the handover decision parameters determine the target cell that meets the handover conditions, start the preset timer and perform a cell handover operation from the current serving cell to the target cell that meets the handover conditions; when the cell handover operation fails, the radio link fails The first handover information is recorded in the report, and the first handover information is used for reporting to the base station. The technical solution of the present disclosure can enable the UE to restart the preset timer when it starts to execute the cell handover operation when it receives the command to perform conditional handover, so as to ensure that the UE can trigger the handover process, avoid radio link failure, and improve the mobility of the UE performance.

Description

technical field [0001] The present disclosure relates to the field of communication technologies, and in particular to a method, device and user equipment for cell handover. Background technique [0002] With the rapid development of wireless communication technology and the popularization of various smart terminals, mobile data traffic will show explosive growth, Ultra-Dense Network (UDN) technology has become the fifth generation mobile communication technology (5th Generation, 5G is one of the key technologies for improving data traffic in the network. In an ultra-dense network, the dense deployment of micro base stations leads to a sharp increase in the number of cells, and due to more and more irregular cell boundaries, it leads to more complex and frequent handovers, making it difficult to guarantee mobility performance. In order to alleviate the difficulty of ensuring mobility performance caused by cell handover in ultra-dense network scenarios, a conditional handove...

AI Technical Summary

Problems solved by technology

In the related art, the UE starts the handover timer T304 immediately after receiving the handover command, and when the timer expires, records the connection failure type in the radio link failure report (Radio Link Failure-Report, referred to as VarRLF-Report) as Handover failure. During conditional handover, the content of the VarRLF-Report recorded by the UE is inaccurate. As a result, the base station cannot accurately locate the handover failure problem, and thus cannot adjust the cell handover trigger of the UE, which improves the mobility performance of the UE.

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