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Method and system for initiating updating of tracking area in switching process and user equipment

A tracking area update and handover process technology, applied in electrical components, wireless communication, network data management, etc., can solve the problems of complicated ways of initiating TAU, and achieve the effect of simplifying the process of initiating TAU

Active Publication Date: 2012-12-19
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the above-mentioned various handovers, the UE must initiate a Tracking Area Update (TAU) process after the handover. However, the method for instructing the UE to initiate TAU is not clearly specified in the prior art, which makes the method of initiating TAU complicated.

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  • Method and system for initiating updating of tracking area in switching process and user equipment
  • Method and system for initiating updating of tracking area in switching process and user equipment
  • Method and system for initiating updating of tracking area in switching process and user equipment

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Embodiment Construction

[0048] The embodiment of the present invention proposes a method for initiating tracking area update during handover, see figure 1 , figure 1 It is a flowchart of a method for updating a tracking area during handover according to an embodiment of the present invention, and the method includes:

[0049] Step 101: During the UE handover process, the target eNB provides the UE with TA information of the target cell where the UE is located;

[0050] Step 102: The UE judges whether the TA information belongs to the TA list of the UE, and if so, executes Step 103.

[0051] Step 103: The UE initiates a tracking area update procedure after the handover is completed.

[0052]Wherein, for different types of handover procedures, in step 101, the target eNB provides the UE with the TA information of the target cell where the UE is located in different ways. Specifically include the following methods:

[0053] (1) For the unchanged cross-base station handover of the mobility management...

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Abstract

The invention provides a method and a system for updating the tracking area in the switching process. The method comprises the following steps: during the switching process of user equipment (UE), a target base station provides the tracking area information of the target cell where the UE is in for the UE; and the UE judges whether the tracking area information conforms to the tracking area list or not, and if yes, the UE initiates the tracking area updating process after the switching is finished. The method and the system determine the triggering conditions of the tracking area updating process initiated by the UE in the switching process.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a method, system and user equipment for initiating tracking area update during handover. Background technique [0002] 3GPP defines the handover process of user equipment (UE), such as: TS23.401 describes the cross-base station handover where the mobility management entity (MME) changes, the cross-base station handover where the MME remains unchanged and the serving gateway (GW) also changes, and The cross-base station handover in which the MME remains unchanged but the serving GW changes; for the handover across radio access technologies (RATs), 3GPP also defines Handover of radio access network (E-UTRAN), and global system for mobile communication, general packet radio service or global enhanced data rate radio access network (GERAN, GSM (GPRS) / EDGE Radio Access Net) to E-UTRAN switch. For the above-mentioned various handovers, the UE must initiate a Tracking Area Update (...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W8/02H04W36/08H04W60/00
Inventor 汪颖熊春山姜怡华
Owner DATANG MOBILE COMM EQUIP CO LTD