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Method for intra-base-station cross-PLMN switching, base station, and communication system

An intra-base station, base station technology, which is applied in the field of cross-PLMN handover in the base station, base station and communication system, and can solve the problems of inability to realize eNodB handover scenarios, eNodB UE call drop, UE context information synchronization update and other problems

Active Publication Date: 2017-02-01
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the LTE system, under the existing network sharing architecture, the user equipment (UE, User Equipment) is handed over from a PLMN1 cell in the eNodB to another PLMN2 cell scenario, because the eNodB cannot transfer the changed UE context information (including PLMN and other information) are synchronously updated to the corresponding MME, therefore, the existing technology cannot realize the inter-PLMN handover scenario within eNodB
Moreover, in the existing network sharing scenario, when the UE reports a measurement report that satisfies the intra-eNodB handover conditions, because the existing technology does not support the intra-eNodB cross-PLMN scenario, the UE cannot perform intra-eNodB handover in time, causing the UE to drop calls, and Limit the application scenarios of network sharing

Method used

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  • Method for intra-base-station cross-PLMN switching, base station, and communication system
  • Method for intra-base-station cross-PLMN switching, base station, and communication system
  • Method for intra-base-station cross-PLMN switching, base station, and communication system

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Experimental program
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Effect test

Embodiment 1

[0063] It is set that the operator networks included in the base station are PLMN1 and PLMN2, the core network equipment includes MME1 and MME2, the operator network of MME1 is PLMN1, and the operator network of MME2 is PLMN2.

[0064] like image 3 As shown, the PLMN negotiation process between the base station and the core network in the MOCN scenario includes:

[0065] In step 101, the eNodeB determines the Stream Control Transmission Protocol (SCTP, Stream Control Transmission Protocol) coupling established by the transport layer (Transport Layer), and numbers the coupling.

[0066] Specifically, the eNodeB determines the SCTP association information of all MMEs according to the transport layer, and numbers the associations, where the association number of MME1 can be AssoID1, and the association number of MME2 can be AssoID2.

[0067] Among them, eNodeB can be referred to as eNB for short; the transport layer is a layer responsible for overall data transmission and data ...

Embodiment 2

[0076] It is set that the base station includes eNB1 and eNB2, eNB1 includes operator networks PLMN1 and PLMN2, eNB2 includes operator network PLMN1, core network equipment includes MME, and MME operator networks are PLMN1 and PLMN2.

[0077] like Figure 4 As shown, the PLMN negotiation process between the base station and the core network in the GWCN scenario includes:

[0078] In step 201, the eNB determines the SCTP connection established by the transport layer, and numbers the connection.

[0079] Specifically, eNB1 determines the SCTP association information of MME according to its own transport layer, and eNB2 determines the SCTP association information of MME according to its own transport layer. The association number between eNB1 and MME is AssoID1, and the association number between eNB2 and MME is AssoID2.

[0080] In step 202, the eNB sends an S1 establishment request message.

[0081] Specifically, when SCTP is coupled to AssoID1, eNB1 sends an S1SETUP REQUEST ...

Embodiment 3

[0088] An embodiment of the present invention provides a method for inter-PLMN handover in a base station, such as Figure 5 As shown, the method includes:

[0089] Step 301, the eNB obtains the PLMN negotiation result of the core network, and determines the network sharing scenario of the base station according to the negotiation result, and the network sharing scenario of the eNB includes MOCN sharing and GWCN sharing.

[0090] Specifically, in the MOCN scenario, each MME can only support a single PLMN, while in the GWCN scenario, each MME can support multiple PLMNs. According to the PLMN negotiation results of the core network, the number of PLMNs that each MME can support A network sharing scenario of the base station may be determined, and the network sharing scenario includes MOCN sharing and GWCN sharing. Wherein, the PLMN negotiation process between the base station and the core network may refer to Embodiment 1 and Embodiment 2, and the embodiments of the present inv...

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Abstract

The embodiment of the invention discloses a method for intra-base-station cross-public-land-mobile-network (PLMN) switching. The method comprises: a base station obtains a PLMN negotiation result of a core network and a network sharing scene of the base station is determined based on the negotiation result, wherein the network sharing scene of the base station includes multi-operator core network (MOCN) sharing and gateway core network (GWCN) sharing; a measuring report sent by user equipment (UE) is received and a PLMN of a source cell and a PLMN of a switched target cell in the base station are determined based on the measuring result; and when the PLMN of the source cell and the PLMN of the switched target cell are different, intra-base-station cross-PLMN switching corresponding to the network sharing scene of the base station is executed. In addition, the embodiment of the invention also discloses a base station and a communication system.

Description

technical field [0001] The present invention relates to a public land mobile network (PLMN, Public Land Mobile Network) handover technology in the communication field, in particular to a method for handover across PLMNs within a base station, a base station and a communication system. Background technique [0002] Long Term Evolution (LTE, Long Term Evolution) is a mobile communication system defined by the Universal Mobile Telecommunications System (UMTS, Universal Mobile Telecommunications System) technical standard formulated by the 3rd Generation Partnership Project (3GPP, The 3rd Generation Partnership Project). Usually, in an LTE mobile communication system, an operator network is also called a PLMN, which is divided into two parts: a core network and an access network, wherein the core network node consists of a Mobility Management Entity (MME, Mobility Management Entity), a service gateway ( SGW, Serving Gateway), packet data gateway (PGW, PDN Gateway), etc.; access ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/00H04W36/14
CPCH04W36/0066H04W36/142
Inventor 邹俊许兵舰游佳莹
Owner ZTE CORP
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