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EPLMN list configuration method, target PLMN selection method, MME and eNB

A configuration method and target technology, applied in access restriction, electrical components, wireless communication, etc., can solve problems such as selection of switching target PLMN without EPLMN list

Active Publication Date: 2013-10-30
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no method in the current public information about how to configure the EPLMN list and how to select the handover target PLMN for the UE from the EPLMN list

Method used

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  • EPLMN list configuration method, target PLMN selection method, MME and eNB
  • EPLMN list configuration method, target PLMN selection method, MME and eNB
  • EPLMN list configuration method, target PLMN selection method, MME and eNB

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Attached below Figure 4 and 5 , to illustrate the selection and configuration of the EPLMN list.

[0061] The application scenario of embodiment 1 is as follows Figure 4 As shown, the cells under each eNodeB are in one TA:

[0062] -Served PLMN supported by MME: PLMN1, PLMN2, PLMN3, PLMN4, PLMN5.

[0063] -eNB1 supports PLMN: PLMN1, PLMN2, Primary PLMN: PLMN1

[0064] -eNB2 supports PLMN: PLMN2, PLMN3, Primary PLMN: PLMN2

[0065] -eNB3 supports PLMN: PLMN4, PLMN5, Primary PLMN: PLMN4

[0066] -Cell A broadcasts PLMN List: PLMN1, PLMN2

[0067] -Cell B broadcasts PLMN List: PLMN1, PLMN2

[0068] -Cell C broadcasts PLMN List: PLMN2, PLMN3

[0069] -Cell D broadcasts PLMN List: PLMN2, PLMN3

[0070] -Cell E broadcasts PLMN List: PLMN4, PLMN5

[0071] -Cell F broadcasts PLMN List: PLMN4, PLMN5

[0072] - Cells A and B belong to TAC1, cells C and D belong to TAC2, cells E and F belong to TAC3.

[0073] - Cells B, C, D, E, F are all adjacent cells of cell A.

...

Embodiment 2

[0094] Attached below Image 6 and 7 , to describe the selection method and configuration steps of the EPLMN list.

[0095] Example 2 application scenarios such as Image 6 As shown, the cells under each eNodeB are in different TAs:

[0096] -Served PLMN supported by MME: PLMN1, PLMN2, PLMN3, PLMN4, PLMN5.

[0097] -eNB1 supports PLMN: PLMN1, PLMN2, Primary PLMN: PLMN1

[0098] -eNB2 supports PLMN: PLMN2, PLMN3, PLMN4, Primary PLMN: PLMN2

[0099] -eNB3 supports PLMN: PLMN2, PLMN4, PLMN5, Primary PLMN: PLMN2

[0100] -eNB4 supports PLMN: PLMN2, PLMN5, Primary PLMN: PLMN2

[0101] -Cell A broadcasts PLMN List: PLMN1, PLMN2

[0102] -Cell B broadcasts PLMN List: PLMN1, PLMN2

[0103] -Cell C broadcasts PLMN List: PLMN2, PLMN3

[0104] -Cell D broadcasts PLMN List: PLMN2, PLMN4

[0105] -Cell E broadcasts PLMN List: PLMN2, PLMN4

[0106] -Cell F broadcasts PLMN List: PLMN2, PLMN5

[0107] -Cell G broadcasts PLMN List: PLMN2, PLMN5

[0108] -Cell H broadcasts PLMN List:...

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Abstract

An EPLMN list configuration method comprises the steps of combining a TAC, accessed to a cell currently, of user equipment and an adjacent TAC to be a TAC set after an MME is triggered; obtaining an eNB supporting the TACs in the TAC set; selecting main PLMNs of the TACs, supported by the eNB, in the TAC set; combining the TACs and the corresponding main PLMNs to be a second set, wherein no same element exists in the second set, and a service PLMN of a current service cell of the user equipment is not included; adding the PLMNs, different from each other, in the second set into an EPLMN list, and issuing the PLMNs to the eNB of the user equipment; treating a PLMN obtained by intersecting a PLMN list supported by a candidate target handover cell of the user equipment and the EPLMN list as a handover target PLMN. The invention further provides the MME and the eNB.

Description

technical field [0001] The present invention relates to a mobile communication system, in particular to an EPLMN (Equivalent Public Land Mobile Network, equivalent public land mobile network) list configuration method and MME (Mobility Management Entity, mobile management entity), and a method for selecting a handover target PLMN and evolved Node B. Background technique [0002] In a network sharing environment, an eNodeB (evolved Node B, eNB) and an MME (Mobility Management Entity, mobility management entity) may support multiple PLMNs. When the UE (User Equipment, user equipment) is handed over, if the serving PLMN (Public Land Mobile Network, public land mobile network) registered by the UE when the source cell accesses the network does not support the handover target side cell, then the source eNodeB needs to be The UE selects another PLMN as the target PLMN of the handover, and the target PLMN will become the serving PLMN after the UE switches to the target side. [0...

Claims

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Application Information

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IPC IPC(8): H04W36/08H04W48/16H04W48/20H04W88/08
CPCH04W48/16H04W36/0061H04W48/18H04W48/20H04W88/08H04W36/08
Inventor 孙伟张荣
Owner ZTE CORP
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