Method for supporting correct establishment of local IP access (LIPA) service

A service and correct technology, applied in electrical components, wireless communication, etc., can solve the problems of LIPA service handover failure and PLMN not considering LIPA service, and achieve the effect of meeting service requirements

Inactive Publication Date: 2013-12-04
BEIJING SAMSUNG TELECOM R&D CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this process, only the UE that is the user of the destination base station is given priority, and the PLMN corresponding to the LIPA service currently accessed by the UE is not considered, so the LIPA service handover may fail.

Method used

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  • Method for supporting correct establishment of local IP access (LIPA) service
  • Method for supporting correct establishment of local IP access (LIPA) service
  • Method for supporting correct establishment of local IP access (LIPA) service

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] This embodiment describes the process for the UE to select a PLMN and a cell before requesting LIPA-related services, such as image 3 shown, including the following steps:

[0050] Step 301: When the UE moves to the coverage area of ​​a CSG cell or a hybrid cell, it obtains system broadcast information, which includes: the current cell's PLMN list, CSG ID, ECGI, whether the current cell supports LIPA services, and the number of LIPA services supported. PLMN information.

[0051]Here, the PLMN that supports the LIPA service can be separate information; or as part of the information about whether to support the LIPA service; or as a part of the PLMN list information, for example, adding extended information to the PLMN information to specifically indicate whether the current PLMN supports the LIPA service .

[0052] In this embodiment, the UE performs PLMN selection according to the existing technology, and the PLMN selection process may occur before step 301 or after ...

Embodiment 2

[0063] Embodiment 2 and Embodiment 1 are technical solutions that replace each other. see image 3 , including the following steps:

[0064] Step 301: When the UE moves to the coverage area of ​​the CSG cell or the hybrid cell, it obtains the PLMN supporting the LIPA service through broadcast information. This step is the same as step 301 in the first embodiment.

[0065] For example: the list of CSGs allowed to be accessed by the UE is {(1,10),(1,20),(2,20)(3,30)}, the CSG of the cell that the UE may select is 20, supported The PLMN is (1, 2), the rPLMN currently registered by the UE is 4, and the ePLMN of the UE is (1, 2, 3). Since the rPLMN of the UE is not within the selection range, the UE can only select from the ePLMN. If the current user always applies for accessing the LIPA service, the UE will preferentially select the PLMN that supports the LIPA service according to the received PLMN that supports the LIPA service, and finally the UE selects PLMN 2.

[0066] Or, ...

Embodiment 3

[0069] Figure 4 It is a schematic diagram of the process of the UE requesting the LIPA service in Embodiment 3 of the present invention, including the following steps:

[0070] Step 401: UE learns the PLMN supporting LIPA service.

[0071] In the prior art, the CSG list that the UE is allowed to access and the operator's CSG list include CSG ID and corresponding PLMN information. In this embodiment, the operator configures the CSG list that the UE is allowed to access or the operator's CSG list, and adds a PLMN that supports the LIPA service to the list. The existing CSG list includes the following information: CSG ID, corresponding PLMN ID or multiple PLMN IDs.

[0072] In this step, the PLMN supporting the LIPA service can be managed by OMA-DM and updated to the UE; or can be stored on the UE or USIM through UE pre-configuration. Therefore, the UE can know the PLMN that supports the LIPA service.

[0073] Step 402: Before selecting a PLMN, the UE obtains the PLMN(s), CS...

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Abstract

The invention provides a method for supporting correct establishment of a local IP access (LIPA) service. User equipment (UE) first obtains a public land mobile network (PLMN) supporting the LIPA service and makes a request to establish the LIPA service in the PLMN supporting the LIPA service according to the PLMN supporting the LIPA service. The invention further provides two other methods for supporting correct establishment of the LIPA service, and the two methods are suitable for a network side device. The LIPA service can be established for the UE correctly by applying the method, the service requirements of a user are met to the greatest extent, and optimal network resource distribution is achieved.

Description

technical field [0001] The invention relates to wireless communication technology, in particular to a method for supporting correct establishment of LIPA service. Background technique [0002] In the existing 3GPP system, whether the network side decides whether to activate the local IP access (LIPA, LocalIPAccess) service for the UE depends on the following factors: [0003] 1) The subscription information of the current UE indicates whether the UE can access the LIPA service; [0004] 2) Whether the closed cell (CSG cell, Closed Subscribe Group cell) or hybrid cell (hybrid cell) base station equipment currently selected by the UE can provide a gateway that supports LIPA services. [0005] In the case of a shared network, one cell can correspond to multiple public land mobile networks (PLMN, Public Land Mobile Network), and the UE can read multiple PLMN IDs in the broadcast information when performing cell selection. A UE in an idle state will select an appropriate PLMN. ...

Claims

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Application Information

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IPC IPC(8): H04W24/10H04W36/14H04W36/00
Inventor 梁华瑞许丽香王弘
Owner BEIJING SAMSUNG TELECOM R&D CENT
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