Relocation method and apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsYongcui Li, Yan Li, Hui Ni
Life of this patent
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Abstract
A method includes: receiving, by a session management function (SMF) network element, identification information from an access and mobility management function (AMF) network element; obtaining, by the SMF network element, information about a plurality of anchor user plane function (UPF) network elements of a session based on the identification information, wherein each of the plurality of anchor UPF network elements is used as an Internet protocol (IP) anchor of a user equipment in the session; and sending, by the SMF network element, the information to a branching point, wherein the branching point is a UPF network element managed by the SMF network element and the branching point is capable of diverting traffic.
Claims20
A method for network element relocation, comprising:
- receiving, by a target intermediate session management function (SMF) network element, identification information of a source intermediate SMF network element from an access and mobility management function (AMF) network element;
- receiving, by the target intermediate SMF network element, an identifier of an anchor SMF network element from the source intermediate SMF network element identified by the identification of the source intermediate SMF network element, wherein the anchor SMF network element provides a session management service for a packet data unit (PDU) session;
- obtaining, by the target intermediate SMF network element, information about a plurality of anchor user plane function (UPF) network elements of the PDU session separately from the source intermediate SMF network element and the anchor SMF network element, wherein each of the plurality of anchor UPF network elements is used as an Internet protocol (IP) anchor of a user equipment (UE) in the PDU session;
- and
- sending, by the target intermediate SMF network element, the information to a branching point, wherein the branching point is a UPF network element managed by the target intermediate SMF network element and the branching point is capable of diverting traffic.
An apparatus for network element relocation, comprising:
- at least one processor;
- a transceiver;
- and
- a memory coupled to the at least one processor and storing programming instructions for execution by the at least one processor, the programming instructions instruct the at least one processor to:
- receive, through the transceiver, identification information of a source intermediate session management function (SMF) network element from an access and mobility management function (AMF) network element;
- receive an identifier of an anchor SMF network element from the source intermediate SMF network element identified by the identification of the source intermediate SMF network element, wherein the anchor SMF network element provides a session management service for a packet data unit (PDU) session;
- obtain information about a plurality of anchor user plane function (UPF) network elements of the PDU session separately from the source intermediate SMF network element and the anchor SMF network element, wherein each of the plurality of anchor UPF network elements is used as an Internet protocol (IP) anchor of a user equipment (UE) in the PDU session;
- and
- send, through the transceiver, the information to a branching point, wherein the branching point is a UPF network element managed by the apparatus and the branching point is capable of diverting traffic.
A non-transitory, computer-readable medium storing one or more instructions executable by at least one processor to perform operations comprising:
- receiving, by a target intermediate session management function (SMF) network element, identification information of a source intermediate SMF network element from an access and mobility management function (AMF) network element;
- receiving, by the target intermediate SMF network element, an identifier of an anchor SMF network element from the source intermediate SMF network element identified by the identification of the source intermediate SMF network element, wherein the anchor SMF network element provides a session management service for a packet data unit (PDU) session;
- obtaining, by the target intermediate SMF network element, information about a plurality of anchor user plane function (UPF) network elements of the PDU session separately from the source intermediate SMF network element and the anchor SMF network element, wherein each of the plurality of anchor UPF network elements is used as an Internet protocol (IP) anchor of a user equipment (UE) in the PDU session;
- and
- sending, by the target intermediate SMF network element, the information to a branching point, wherein the branching point is a UPF network element managed by the target intermediate SMF network element and the branching point is capable of diverting traffic.
Dependencies are inferred from the claim text.