Handover method and base station for target cell, and user terminal

Abstract

The embodiment of the invention discloses a handover method for a target cell. The method comprises steps of when a user terminal (UE) enables carrier aggregation, determining whether it is detected that a current cell quits the service or whether a measurement report indicative of a decrease in the primary carrier signal quality of the current cell sent by the UE is acquired; if so, determining atarget cell according to the secondary carrier information by using a preset determining rule or a preset weight rule; and sending an execution message for handing over to the target cell to the UE.The embodiment of the invention also discloses a base station for handover of the target cell and a user terminal.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method for switching a target cell, a base station and a user terminal. Background technique [0002] In a wireless communication network, a user terminal (User Equipment, UE) will select a cell to access, and interact with the wireless communication network through the accessed cell; in the existing Long Term Evolution (LTE) communication system, the UE There are measurement-based handover and blind handover methods for target cell handover. Among them, measurement-based handover requires the UE to measure neighboring cells before handing over the target cell, and then the base station system decides to handover the target cell according to the measurement results of the UE; through the measured Although the method can ensure that the UE is online to a certain extent, it takes time for the UE to measure neighboring cells, and the handover will be performed...

AI Technical Summary

Problems solved by technology

[0002] In a wireless communication network, a user terminal (User Equipment, UE) will select a cell to access, and interact with the wireless communication network through the accessed cell; in the existing Long Term Evolution (LTE) communication system, the UE There are measurement-based handover and blind handover methods for target cell handover. Among them, measurement-based handover requires the UE to measure neighboring cells before handing over the target cell, and then the base station system decides to handover the target cell according to the measurement results of the UE; through the measured Although the method can ensure that the UE is online to a certain extent, it takes time for the UE to measure neighboring cells, and the handover will be performed after the measurement is reported to the base station. Impact: Although blind switching does not require the UE to perform neighbor cell measurements, the selection of the handover target cell is blind. If the signal quality of the selected target cell is relatively poor, or the cell load is heavy, etc. business, as well as the overall load of the cell and the business of other UEs will be affected; the above two methods of UE switching target cells are difficult to ensure that the business of the UE will not be affected

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