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Method and device for handling wireless link failures during switching process

A technology of wireless link failure and processing method, which is applied in the field of wireless communication, can solve problems such as delay, and achieve the effect of reducing processing time and saving time spent

Inactive Publication Date: 2008-07-02
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

[0008] So far, no specific solution has been given for the handling of radio link failures in the LTE system. In addition, the UE starts after the radio link fails. Selecting a suitable cell to access may cause a large delay for real-time services. It is even possible that when the UE determines a suitable cell to access, the T2 timer has expired, and the UE will have to enter the RRC idle state

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  • Method and device for handling wireless link failures during switching process
  • Method and device for handling wireless link failures during switching process
  • Method and device for handling wireless link failures during switching process

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Embodiment Construction

[0033] The embodiment of the present invention describes the processing procedure of the handover failure in the LTE system. For the convenience of expression, the eNodeB used in the LTE system is still called the base station. Handover to a cell under the target base station. The embodiment of the present invention can be understood as: before the user equipment performs handover, the source base station first determines a cell as a backup cell, and includes the backup cell C-RNTI (Cell Radio Network Temporary Identity, Cell Radio Network Temporary Identifier) ​​wireless network The reservation parameters including the temporary identifier are sent to the user equipment, and the user equipment connects with the backup cell according to the reservation parameters of the backup cell after the cell handover fails.

[0034] The specific implementation process of the embodiments of the present invention will be further introduced below with reference to the accompanying drawings. ...

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Abstract

The invention discloses a treatment method for failure of radio link during a switch process, which comprises the following steps: a source base station chooses a district under control as a back-up district; the source base station sends a switching order to a user device; the user device obtains reserved parameters of the back-up district; the reserved parameters comprise at least a temporary indicator C-RNTI of a district wireless network; the user device switches to a switch target; the user device is connected with the back-up district according to the reserved parameters of the back-up district after the switching fails. The invention saves time spending on choosing the back-up district for the user device, which not only reduces the treatment time for the failure of the radio link, but also does not increase the complexity of an existing system. Besides, A base station and the user device are provided either.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a method and device for processing wireless link failure during handover. Background technique [0002] A system related to the Long Term Evolution (Long Term Evolution, hereinafter referred to as LTE) of a UTRAN (Universal Terrestrial Radio Access Network, Universal Terrestrial Radio Access Network) is called an LTE system. In the LTE system, the new UTRAN is called an enhanced UTRAN, or E-UTRAN for short; the new NodeB (base station) used in the LTE system is called an evolved NodeB, or eNodeB for short. [0003] When handover is performed in the LTE system, soft handover is not used, but a hard handover assisted by a network-controlled UE (user equipment) is used. In the LTE system, the main reasons for Radio Link Failure (RLF, Radio LinkFailure) are as follows: [0004] A. The UE loses connection to the serving cell unexpectedly. [0005] B. The eNodeB require...

Claims

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Application Information

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IPC IPC(8): H04Q7/38H04B7/26
Inventor 常俊仁李亚娟冯淑兰
Owner HUAWEI TECH CO LTD
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