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Method and system for updating tracking area

A tracking area update, terminal technology, applied in connection management, machine-to-machine/machine-type communication services, broadcast service allocation, etc., can solve the problem of inability to control periodic TAU of terminal groups, reduce signaling interaction, save money Signaling resources, the effect of improving efficiency

Inactive Publication Date: 2017-11-07
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] After the introduction of the group-based MTC feature, the functions of the existing network cannot control the periodic TAU of the terminal group according to the subscribed group information

Method used

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  • Method and system for updating tracking area
  • Method and system for updating tracking area
  • Method and system for updating tracking area

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] In this example, if image 3 As shown, the process of updating the tracking area for any terminal in the terminal group may specifically include the following steps:

[0050] Step 301: When each terminal of the terminal group accesses the network, sign up each terminal as a terminal with group characteristics, assign a group identity (GID, Group Identity) to the terminal group, and designate a terminal of the terminal group as the terminal The group representative terminal of the terminal group, using the terminal identity of the terminal as a group representative terminal identity (GRUEI, Group RepresentativeUE Identity), and storing the GID and GRUEI as the subscription data of each terminal in the HSS;

[0051] For example, the first terminal attached to the network in the terminal group can be designated as the group representative terminal of the terminal group, and the terminal identifier of the terminal can be used as GRUEI; or, it can also be set by the MTC user...

Embodiment 2

[0078] In this example, if Figure 4 As shown, the process of updating the tracking area for any terminal in the terminal group may specifically include the following steps:

[0079] Step 401 is exactly the same as step 301;

[0080] Step 402, when the terminal is powered on and attached to the network, the old MME acquires the subscription data of the terminal from the HSS;

[0081] Step 403: When the terminal triggers the TAU process, it sends a TAU request to the new MME, wherein the TAU request includes the terminal's old terminal identifier (such as a globally unique temporary identifier (GUTI)), the old MME's identifier ( Such as the globally unique MME identifier (GUMMEI)), and the GID of the terminal group to which the terminal belongs;

[0082] Step 404: The new MME receives the TAU request sent by the terminal, and according to the old MME identifier in the TAU request, requests the old MME for the context information of the terminal through a context request messa...

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PUM

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Abstract

The present invention discloses a Tracking Area Update (TAU) method. The method includes: when the terminal is not a group representative terminal of a pre-designated terminal group, deactivating the periodic TAU timer of the terminal; the terminal enters idle state, when the mobile reachability timer corresponding to the terminal expires, and the network side detects that the PPF of the group representative terminal of the terminal group to which the terminal belongs locally has not been cleared, then the mobile reachability timer corresponding to the terminal will be timed reset and restart. Correspondingly, the present invention also discloses a tracking area update system, which realizes the periodic TAU process for the terminal group, and reduces the signaling interaction required to complete the periodic TAU process between each terminal in the terminal group and the network side, Therefore, signaling resources are saved, and the efficiency of periodic TAU performed by the terminal group is improved.

Description

technical field [0001] The present invention relates to Machine Type Communication (MTC, Machine Type Communication) technology, in particular to a tracking area update method and system. Background technique [0002] A cellular wireless communication system is mainly composed of a core network (CN, Core Network), an access network (RAN, Radio Access Network) and terminals. The core network is responsible for non-access stratum affairs, such as terminal location update, and is the anchor point of the user plane. The access network includes base stations, or base stations and base station controllers. The access network is responsible for access layer affairs (such as management of wireless resources, etc.). There may be physical or logical connections between base stations according to actual conditions, such as figure 1 The shown cellular wireless communication system includes a core network, a base station 1, a base station 2, a base station 3 and a terminal, wherein the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W8/02H04W8/24H04W76/00H04W4/70
CPCH04W28/06H04W60/02H04W4/08H04W4/70H04W4/023H04W8/08
Inventor 杨坤
Owner ZTE CORP
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