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PLMN selection method of PS domain and CS domain, and device

A home location and home location registration technology, which is applied in wireless communication, access restrictions, electrical components, etc., can solve the problems of different PLMNs, achieve the effect of improving user experience, avoiding differences in call charges or differences in terminal display operator names

Inactive Publication Date: 2015-08-12
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In the related art, the existing PLMN selection scheme may lead to technical problems such as different PLMNs selected by the CS domain and the PS domain. The present invention provides a PLMN selection method and device for the PS domain and the CS domain to at least solve the above-mentioned question

Method used

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  • PLMN selection method of PS domain and CS domain, and device
  • PLMN selection method of PS domain and CS domain, and device
  • PLMN selection method of PS domain and CS domain, and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] This embodiment may be applicable to UE handover in the PS domain, after performing a Route Area Update (RAU) on the target side, and after the PS service ends (that is, the target side does not support simultaneous connection of the PS service and the CS service ), the process of location area update (Location Area Update, LAU for short) is executed. This implementation manner can also be applied to the case where the UE performs a handover in the PS domain, and does not perform the RAU process when it reaches the target side, but performs a separate LAU process. At this time, steps S502 to S510 may be considered as completed at the source side, that is, completed before the handover. Therefore, there is no strict time limit requirement for steps S502-S510 and subsequent steps S512 and after.

[0067] In step S502, the UE initiates a RAU process.

[0068] In step S504, the SGSN initiates a location update request to the HLR / HSS after determining the PLMN for the UE. ...

Embodiment 2

[0090] This implementation mode can be applied to the process that the UE is handed over in the PS domain, after the RAU is executed on the target side, and the LAU process is executed after the PS service ends (that is, the target side does not support simultaneous connection of the PS service and the CS service). This implementation manner can also be applied to the case where the UE performs a handover in the PS domain, and does not perform the RAU process when it reaches the target side, but performs a separate LAU process. At this time, steps S602 to S614 may be considered as completed at the source side, that is, completed before the handover. Therefore, there is no strict time limit requirement for steps S602-S614 and the subsequent step S616.

[0091] In step S602, the UE initiates a RAU procedure.

[0092] In step S604, the SGSN initiates a location update request to the HLR / HSS after determining the PLMN for the UE. When this process occurs after handover, the PLMN...

Embodiment 3

[0108] The scope of application of this embodiment and Figure 5 Similarly, the execution process is also similar, the difference is that steps S514 to S518 do not need to be executed at this time, but MSC / VLR1 sends an authentication data request to HLR, and HSS returns an authentication data response to MSC after receiving it, which contains UE registration PLMN information of the PS domain. The MSC / VLR1 selects the PLMN information registered in the CS domain for the UE according to the PLMN information in the PS domain. If the MSC / VLR1 supports the PLMN, the MSC completes the remaining procedures of the LAU. Otherwise, MSC / VLR1 redirects the LAU to the MSC / VLR of other PLMNs, execute Figure 5 The remaining steps after step S522 in .

[0109] In addition, step S528 to step S532 may obtain the PLMN information of the PS domain through the authentication data request process.

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Abstract

Provided are a PLMN selection method and device for a PS domain and a CS domain. The selection method comprises: acquiring, by a network element of a first core network, information about a first PLMN registered in a PS domain or information about a second PLMN registered in a CS domain; and selecting, by the network element of the first core network, the first PLMN registered in the CS domain for a user equipment according to the information about the first PLMN, or selecting the second PLMN registered in the PS domain for the user equipment according to the information about the second PLMN. By means of the technical solution provided in the present invention, the technical problem in the related art that the existing PLMN selection solution may lead to PLMNs selected by the CS domain and the PS domain being different, thus generating a difference in the phone charges or a difference in the operator names displayed on a terminal, is solved, so that it is guaranteed that the CS domain and the PS domain select the same PLMN, thereby avoiding the difference in the phone charges or the difference in the operator names displayed on the terminal, and improving the user experience.

Description

technical field [0001] The present invention relates to the field of communication, in particular to a Public Land Mobile Network (PLMN) in the domain of Packet Switched (PS) and Circuit Switched (CS) Method of choosing. Background technique [0002] The currently deployed 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP for short) network includes the following network devices, such as figure 1 shown. [0003] User equipment (User Equipment, referred to as UE) has the ability to access the Global Mobile Communication System Radio Access Network (Universal Mobile Telecommunication System Radio Access Network / GSM EDGE Radio AccessNetwork, referred to as UTRAN / GERAN). In addition, UE can also have The ability to access two types of wireless networks called Long Term Evolution (LTE for short). When the UE accesses the network from GERAN / UTRAN, it can access the CS domain or PS domain. The so-called CS domain refers to the access to the Mobile Swi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W48/18H04W60/00
CPCH04W48/18
Inventor 梁爽朱进国刘竞翔
Owner ZTE CORP
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