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Processing method for handover failure, method and apparatus for detecting handover success

A handover failure and processing method technology, which is applied in the field of handover failure processing methods and devices, can solve the problems of call drop and inability to access the source cell again, and achieve the effect of ensuring no interruption and reducing service delay

Inactive Publication Date: 2009-08-12
HUAWEI TECH CO LTD
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Inform the UE in the handover command message to return to the source cell when the handover fails, but when the signal quality of the source cell is not good, there is a danger of call drop or the source cell cannot be accessed at all

Method used

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  • Processing method for handover failure, method and apparatus for detecting handover success
  • Processing method for handover failure, method and apparatus for detecting handover success
  • Processing method for handover failure, method and apparatus for detecting handover success

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Embodiment approach

[0023] refer to figure 1 , which introduces the first embodiment of the present invention, about a method for handling handover failure. In this embodiment, the source base station sends a message including cell reselection information to the UE. When the UE fails to switch from the source cell to the target cell, it can perform cell reselection according to the cell reselection information and access to other target cells. , the method includes:

[0024] Step 101: Receive a message sent by a source base station, where the message includes cell reselection information;

[0025] Step 102: Perform cell reselection according to the cell reselection information.

[0026] In this method, the cell reselection information may include a suitable cell, frequency or system list (suitable cell, frequency or RAT list), and a cell reselection, frequency or system priority list. When preparing for handover, the UE sends the measured cell information that satisfies the measurement event c...

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Abstract

The invention discloses a method for processing switching failure, which comprises the following steps: receiving a message sent by a source base station, wherein the message comprises cell reselection information; and according to the cell reselection information, performing cell reselection after the cell switching failure. The invention also discloses a method for detecting successful switching, and also discloses user equipment and base station equipment. The proposal provided by the implementation mode can make UE perform the access as soon as possible after the switching failure, ensures uninterrupted communication, reduces service time delay caused by the switching failure of the UE as possible, and solves the problem of service interrupt under the condition that the UE fails switching to a target cell and cannot access a source cell in the prior art. In addition, when the UE performs switching, a concrete method for the successful switching is definite through the confirmation that a random access response message sent by the base station does not reject the access of the UE nor delay the access of the UE.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a method and device for processing handover failure, and a method and device for detecting handover success. Background technique [0002] In a long term evolution (Long Term Evolution, LTE) system, when it is determined that the radio link fails, the radio link needs to be restored. First, in the first stage, the user equipment (User Equipment, UE) selects the source cell to restore the radio link. If the restoration cannot be completed in the first stage, it enters the second stage. In the second stage, the UE independently selects a The cell sends a radio resource control connection re-establishment request (Radio Resource Control Connection Re-establishment Request) message to the cell. After receiving the message, the cell checks whether it has saved the context of the UE. When the context of the UE exists, Send a message to the UE to notify the UE that the radio link ...

Claims

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Application Information

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IPC IPC(8): H04W36/08H04W48/20
Inventor 约翰·约翰逊谢铂云朱作燕谢明江黄敏麦克尔·罗伯茨
Owner HUAWEI TECH CO LTD
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