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Tracking area updating method and device

A technology for tracking area updates and cells, which is applied in the field of communication, and can solve problems such as inability to perform services and UE's inability to complete TAU in time

Inactive Publication Date: 2018-11-02
CHENGDU TD TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a method and device for updating a tracking area, which is used to solve the problem in the prior art that the UE cannot complete the TAU in time, resulting in the inability to perform services for a long time

Method used

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  • Tracking area updating method and device
  • Tracking area updating method and device

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Embodiment Construction

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0025] The present invention is mainly applied to UEs that need to update the tracking area. Wherein, the conditions for triggering the TAU include that the UE enters a new TA, or the timer of the periodic TAU expires and so on. The UE may be, for example, a mobile phone, a tablet computer, and the like.

[0026] figure 1 It is a flow chart of ...

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Abstract

The invention provides a tracking area updating method and device. The method comprises the steps of judging whether a T3411 timer is currently operated or not after a cell is selected and the cell isresided; and carrying out tracking area updating (TAU) when the T3411 timer is currently operated. According to the method and the device, the problem that business cannot be carried out in relatively long time due to the fact that UE cannot finish the TAU timely.

Description

technical field [0001] The present invention relates to the communication field, in particular to a Tracking Area Updating (TAU, Tracking Area Updating) method and device. Background technique [0002] When the user equipment (UE, User Equipment) enters a new tracking area (TA, Tracking Area) or the timer of the periodic TAU expires, the TAU will be triggered. [0003] In the prior art, there are many reasons that may cause TAU failure. After the TAU fails, the UE will start the T3411 timer, and perform the TAU after the T3411 timer expires. Wherein, the reason causing the TAU failure includes a bottom layer error, where the bottom layer is a layer below the radio resource control (RRC, Radio Resource Control) layer, and the bottom layer error may be random access failure, for example. In most cases, the underlying errors that occur when the UE performs TAU will not occur when the UE performs TAU again after a very short period of time, and the very short period of time is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W60/04
CPCH04W60/04
Inventor 刘海君徐绍君乔磊苑雪李琳
Owner CHENGDU TD TECH LTD
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