Method and apparatus for session management function selection
AssigneeZte Corporation
InventorJinguo Zhu
Life of this patent
Estimating the term…
Abstract
A method and apparatus for selecting session management functions are disclosed. In one embodiment, a method includes: receiving a registration request from a user equipment (UE) device; sending access location information and allowed slice information associated with the UE device to a logical network database; receiving accepted slice information and associated slice information of a home network from the logical network database; and sending a registration accepted message to the UE device, wherein the registration accepted message comprises the accepted slice information.
Claims9
A method performed by an Access and Mobility Management Function (AMF) of a serving network, comprising:
- receiving a requested Network Slice Selection Assistance Information (NSSAI) from a wireless communication device visiting the serving network;
- sending a network slice instance (NSI) selection request message to a first database that maintains function information pertaining to at least one NSI, wherein the NSI-selection request message comprises the requested NSSAI, and an indication that a requested data session is home routed through a home network of the wireless communication device;
- receiving a NSI-selection response message from the first database, wherein the NSI selection response message comprises, in response to the indication, an address of a network function repository function (NFRF) in the home network;
- selecting a first session management function associated with a NSI of the serving network;
- and
- selecting a second session management function associated with a NSI of the home network.
An apparatus of a serving network, comprising:
- at least one processor and a memory coupled to the at least one processor, the at least one processor configured to:
- receive a requested NSSAI from a wireless communication device visiting the serving network;
- send a network slice instance (NSI) selection request message to a first database that maintains function information pertaining to at least one NSI, wherein the NSI selection request message comprises the requested NSSAI and an indication that a requested data session is home routed through a home network of the wireless communication device;
- receive a NSI selection response message from the first database, wherein the NSI selection response message comprises, in response to the indication, an address of a network function repository function (NFRF) in the home network;
- select a first session management function associated with a NSI of the serving network;
- and
- select a second session management function associated with a NSI of the home network.
A non-transitory computer-readable medium having computer-executable instructions stored thereon, the computer-executable instructions, when executed by a processor of a serving network, causing the processor to perform:
- receiving a requested Network Slice Selection Assistance Information (NSSAI) from a wireless communication device visiting the serving network;
- sending a network slice instance (NSI) selection request message to a first database that maintains function information pertaining to at least one NSI, wherein the NSI selection request message comprises the requested NSSAI, and an indication that a requested data session is home routed through a home network of the wireless communication device;
- receiving a NSI selection response message from the first database, wherein the NSI selection response message comprises, in response to the indication, an address of a network function repository function (NFRF) in the home network;
- selecting a first session management function associated with a NSI of the serving network;
- and
- selecting a second session management function associated with a NSI of the home network.
Dependencies are inferred from the claim text.