Dedicated network handover method, dedicated network type notification method, and device
First Claim
1. A target core network (CN) network element device, comprising:
- a receiver configured to receive a forward relocation request message comprising CN type information of a user equipment (UE) from a first dedicated CN network element, wherein the first dedicated CN network element is a dedicated CN network element that provides a service for a source cell in which the UE is located in a handover process, and wherein the handover process is triggered when the first dedicated CN network element receives a handover request from a source base station serving the UE in the source cell; and
a processor coupled to the receiver and configured to;
determine, according to the CN type information, identifier information of a second dedicated CN network element that supports a CN type indicated by the CN type information, wherein the second dedicated CN network element is a dedicated CN network element that provides a service for a target cell in which the UE is located after the handover process is completed;
forward the forward relocation request message received from the first dedicated CN network element to the second dedicated CN network element;
handover, according to the identifier information, the UE to the second dedicated CN network element corresponding to the identifier information, wherein the handover includes requesting a target base station to establish an air interface for the UE, and wherein the target base station is configured to serve the UE after the handover process is completed; and
acquire identifier information of a third dedicated CN network element that supports the CN type indicated by the CN type information responsive to the target CN network element determining, according to the CN type information, the identifier information of the second dedicated CN network element that supports the CN type indicated by the CN type information when the target CN network element itself does not support the CN type indicated by the CN type information.
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Abstract
A dedicated network handover method, a dedicated network type notification method, and a device, so as to ensure that user equipment (UE) is handed over to a dedicated core network (CN) network element of a corresponding CN type in a handover process, are presented. The CN network element device mainly includes a receiver configured to receive CN type information of UE sent by a first dedicated CN network element; a processor configured to determine, according to the CN type information, identifier information of a second dedicated CN network element that supports a CN type indicated by the CN type information; and the processor configured to hand over, according to the identifier information, the UE to the second dedicated CN network element corresponding to the identifier information.
9 Citations
13 Claims
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1. A target core network (CN) network element device, comprising:
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a receiver configured to receive a forward relocation request message comprising CN type information of a user equipment (UE) from a first dedicated CN network element, wherein the first dedicated CN network element is a dedicated CN network element that provides a service for a source cell in which the UE is located in a handover process, and wherein the handover process is triggered when the first dedicated CN network element receives a handover request from a source base station serving the UE in the source cell; and a processor coupled to the receiver and configured to; determine, according to the CN type information, identifier information of a second dedicated CN network element that supports a CN type indicated by the CN type information, wherein the second dedicated CN network element is a dedicated CN network element that provides a service for a target cell in which the UE is located after the handover process is completed; forward the forward relocation request message received from the first dedicated CN network element to the second dedicated CN network element; handover, according to the identifier information, the UE to the second dedicated CN network element corresponding to the identifier information, wherein the handover includes requesting a target base station to establish an air interface for the UE, and wherein the target base station is configured to serve the UE after the handover process is completed; and acquire identifier information of a third dedicated CN network element that supports the CN type indicated by the CN type information responsive to the target CN network element determining, according to the CN type information, the identifier information of the second dedicated CN network element that supports the CN type indicated by the CN type information when the target CN network element itself does not support the CN type indicated by the CN type information. - View Dependent Claims (2, 3)
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4. A dedicated network handover method, comprising:
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receiving, by a target core network (CN) network element, a forward relocation request message comprising CN type information of user equipment (UE) from a first dedicated CN network element, wherein the first dedicated CN network element is a dedicated CN network element that provides a service for a source cell in which the UE is located in a handover process, and wherein the handover process is triggered when the first dedicated CN network element receives a handover request from a source base station serving the UE in the source cell; determining, by the target CN network element according to the CN type information, identifier information of a second dedicated CN network element that supports a CN type indicated by the CN type information, wherein the second dedicated CN network element is a dedicated CN network element that provides a service for a target cell in which the UE is located after the handover process is completed; forwarding, by the target CN network element, the forward relocation request message received from the first dedicated CN network element to the second dedicated CN network element; handing over, by the target CN network element according to the identifier information, the UE to the second dedicated CN network element corresponding to the identifier information, wherein the handover includes requesting a target base station to establish an air interface for the UE, and wherein the target base station is configured to serve the UE after the handover process is completed; and acquiring, by the target CN network element, identifier information of a third dedicated CN network element that supports the CN type indicated by the CN type information responsive to determining, by the target CN network element according to the CN type information, the identifier information of the second dedicated CN network element that supports the CN type indicated by the CN type information when the target CN network element itself does not support the CN type indicated by the CN type information. - View Dependent Claims (5, 6, 7, 9, 10, 11, 12, 13)
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8. The method of 7, wherein the configuration information returned to the target CN network element includes correspondences between identifier information of all dedicated CN network elements that can provide a service for the location area in which the UE is located and information about CN types supported by the dedicated CN network elements.
Specification