Mechanism to enable interworking between network slicing and evolved packet core connectivity
AssigneeQUALCOMM Incorporated
InventorsStefano FACCIN, Haris ZISIMOPOULOS, Sebastian SPEICHER
Life of this patent
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Abstract
Aspects of the present disclosure relate to a mechanism to enable interworking between fifth generation system (5GS) network slicing and evolved packet core (EPC) connectivity. In an example, techniques are provided for existing packet data unit (PDU) sessions that provide connectivity to a network slice from a set of network slices. Connectivity to the network slice is in response to a user equipment (UE), that uses network slices, moving between a 5G network and a 4G network. The existing PDU sessions are connected to a dedicated EPC core network that supports the same services provided by the network slice.
Claims18
A method of wireless communications, comprising:
- enabling an access and mobility management function (AMF) supporting a connectivity to a variety of network slices to be configured with a mapping between a set of network slices in an list of network slices allowed by the network for the UE to a specific dedicated core network (DCN) in an evolved packet core (EPC);
- and
- applying the mapping.
A method of wireless communications, comprising:
- enabling a session management function (SMF)-selection functionality to ensure that an access and mobility management function (AMF) selects an SMF for establishing a packet data unit (PDU) session for a user equipment (UE) corresponding to a network slice considering a mapping between a set of network slices and dedicated core networks (DCNs) in an evolved packet core (EPC);
- and
- applying the SMF-selection functionality.
A method of wireless communications, comprising:
- augmenting a subscribed user equipment (UE) usage type maintained in a home subscriber server (HSS) with a temporary UE usage type set by an access and mobility management function (AMF) based on an allowed single network slice selection assistance information (S-NSSAI);
- and
- providing the temporary UE usage type to the HSS when the allowed S-NSSAI is allocated to the UE.
A wireless communication device, comprising:
- memory storing instructions;
- and
- a processor in communication with the memory, wherein the processor is configured to execute the instructions to:
- enable an access and mobility management function (AMF) supporting a connectivity to a variety of network slices to be configured with a mapping between a set of network slices in an list of network slices allowed by the network for the UE to a specific dedicated core network (DCN) in an evolved packet core (EPC);
- and
- apply the mapping.
A wireless communication device, comprising:
- memory storing instructions;
- and
- a processor in communication with the memory, wherein the processor is configured to execute the instructions to:
- enable a session management function (SMF)-selection functionality to ensure that an access and mobility management function (AMF) selects an SMF for establishing a packet data unit (PDU) session for a user equipment (UE) corresponding to a network slice considering a mapping between a set of network slices and dedicated core networks (DCNs) in an evolved packet core (EPC);
- and
- apply the SMF-selection functionality.
A wireless communication device, comprising:
- memory storing instructions;
- and
- a processor in communication with the memory, wherein the processor is configured to execute the instructions to:
- augment a subscribed user equipment (UE) usage type maintained in a home subscriber server (HSS) with a temporary UE usage type set by an access and mobility management function (AMF) based on an allowed single network slice selection assistance information (S-NSSAI);
- and
- provide the temporary UE usage type to the HSS when the allowed S-NSSAI is allocated to the UE.
Dependencies are inferred from the claim text.