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

A target cell and user terminal technology, applied in the direction of electrical components, wireless communication, etc., can solve the problem that it is difficult to ensure that the UE's business will not be affected, and achieve the effects of reducing UE call drop, efficient switching, and improving speed

Inactive Publication Date: 2018-01-19
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

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Embodiment Construction

[0060] The present invention relates to the switching problem of the target cell when the base station enables carrier aggregation for the UE in the wireless communication system, especially in the LTE communication system.

[0061] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0062] figure 1 It is a flow chart of Embodiment 1 of the method for handover target cell of the present invention, such as figure 1 As shown, the method for switching the target cell provided by the embodiment of the present invention is performed on the base station side, and may include the following steps:

[0063] Step 101. When the UE enables carrier aggregation, it is judged whether it is detected that the current cell is out of service or whether the measurement report of the deterioration of the main carrier signal quality of the current cell se...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/00H04W36/08H04W36/30
Inventor 王敏
Owner ZTE CORP
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