Session processing method and related device
AssigneeHuawei Technologies Co., Ltd.
InventorsFangyuan Zhu, Yan Li
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Abstract
In a session management method, when a first access and mobility management function (AMF) network element serving a terminal becomes unavailable, a service management function (SMF) network element obtains a pool identifier of an AMF pool that includes the first AMF, and queries a network repository function (NRF) entity to obtain the address or identifier of a second AMF in the same AMF pool. The SMF then triggers the second AMF network element to obtain a context of the terminal from a unstructured data storage function (UDSF) entity.
Claims9
A session processing method performed by a session management function network element, comprising:
- obtaining, from a first access and mobility management function (AMF) network element serving a terminal, a pool identifier of an AMF pool comprising a plurality of AMF network elements including the first AMF network element and a second AMP network element;
- determining the first AMF network element is unavailable;
- sending, in response to the determination, a query request message to a network repository function (NRF) entity, wherein the first query request message carries the pool identifier;
- receiving an address of the second AMF network element or an identifier of the second AMF network element from the NRF entity;
- and
- triggering the second AMF network element to obtain a context of the terminal from a unstructured data storage function (UDSF) entity.
A session management function network element, comprising:
- an interface;
- a memory storing executable instructions;
- a processor configured to execute the executable instructions in the memory to:
- obtain, using the interface from a first access and mobility management function (AMF) network element serving a terminal, a pool identifier of an AMF pool comprising a plurality of AMF network elements including the first AMF network element and a second AMP network element;
- determine the first AMF network element is unavailable;
- send, using the interface in response to the determination, a query request message to a network repository function (NRF) entity, wherein the first query request message carries the pool identifier;
- and
- receive, using the interface from the NRF entity, an address of the second AMF network element or an identifier of the second AMF network element;
- and ;
- and
- trigger the second AMF network element to obtain a context of the terminal from a unstructured data storage function (UDSF) entity.
A non-transitory computer-readable medium storing computer instructions for execution by one or more processors, wherein the computer instructions instruct the one or more processors to perform the operations of:
- obtaining, from a first access and mobility management function (AMF) network element serving a terminal, a pool identifier of an AMF pool comprising a plurality of AMF network elements including the first AMF network element and a second AMP network element;
- determining the first AMF network element is unavailable;
- sending, in response to the determination, a query request message to a network repository function (NRF) entity, wherein the first query request message carries the pool identifier;
- receiving an address of the second AMF network element or an identifier of the second AMF network element from the NRF entity;
- and
- triggering the second AMF network element to obtain a context of the terminal from a unstructured data storage function (UDSF) entity.
Dependencies are inferred from the claim text.