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Method of improving the management of mobility in a cellular mobile communications system

A technology of cellular mobile communication and mobility, applied in the field of cellular mobile communication system, can solve the problems of access right restriction, mobile terminal only access, access right restriction cannot be considered, etc.

Inactive Publication Date: 2006-06-28
ALCATEL LUCENT SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0022] However, with this multi-RAT LA type solution, it is not possible with the current standard situation to authorize mobile terminals capable of supporting different RATs to access only certain RATs; regardless of the RAT, all cells of the multi-RAT LA are authorized
In other words, in the current standard situation, access rights restrictions (especially according to subscription profiles) cannot be considered at a lower level than that of the LA, which based on certain criteria, especially RAT-based, generates access rights restrictions The problem

Method used

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  • Method of improving the management of mobility in a cellular mobile communications system
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  • Method of improving the management of mobility in a cellular mobile communications system

Examples

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Embodiment Construction

[0035] figure 2 An example of a method according to the invention is shown.

[0036] In a step marked 1, the mobile terminal MT sends a registration request to a network entity, usually corresponding to a core network server entity.

[0037] In particular, for circuit mode traffic, this core network server entity corresponds to a Mobile Switching Center / Visitor Location Register (MSC / VLR) type entity. For packet mode traffic, this core network server entity corresponds to a Serving GRPS Support Node (SGSN) type entity.

[0038] Said registration request can be generated by the terminal in the usual way (thus, it will not be described in detail here). In one example, when a mobile terminal changes its selected cell to coincide with a change in LA, the registration request may correspond to a location update request as normally transmitted on a mobile terminal changing its selected cell.

[0039] In a step marked 2, the CN entity responds to the request by sending a reply to...

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Abstract

In one aspect of the present invention there is provided a method of improving mobility management in a cellular mobile communication system in which cells are grouped together in a location structure comprising cells supporting different radio access technologies, the method comprising The following steps: a mobile terminal (MT) in a given cell sends (1) a request to a network entity (CN) to register in a location structure including the cell; after receiving the request, the network entity ( CN) sends (2) a reply to the mobile terminal (MT), said reply comprising at least one radio access technology (RAT) authorized for said mobile terminal in said location structure and / or with at least one radio access technology (RAT) authorized for said mobile terminal and / or The mobile terminal does not have at least one radio access technology indication related to an authorized radio access technology.

Description

technical field [0001] The present invention generally relates to cellular mobile communication systems. Background technique [0002] In general, cellular mobile communication systems are the subject of standardization, for more information reference can be made to the respective standards published by the respective standards bodies. [0003] refer to figure 1 , briefly recalling the general structure of such a system. Such a system includes a mobile communication network called a Public Land Mobile Network (PLMN), which communicates with Mobile Terminals (MT) and external networks (not specifically shown). [0004] The network itself includes a radio access network (RAN) and a core network (CN), where the RAN is mainly used to transmit and manage wireless resources through the wireless interface between the network and the mobile terminal, and the CN is mainly used to manage and transmit to and from Calls from mobile terminals. [0005] Typically, these systems are ce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W48/14H04W60/00H04W60/04H04W88/06H04W88/18H04W92/02
CPCH04W48/14H04W60/00H04W60/04H04W88/06H04W88/18H04W92/02H04W8/06H04W48/04
Inventor N·德勒冯S·博代
Owner ALCATEL LUCENT SAS
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