User equipment, intra-core network apparatus, and communication control method
According to an aspect of the present invention, a procedure and a communicator for initial registration of UE or periodic or mobility-based registration for achieving Network Slice Specific Authentication and Authorization in 5GS. Furthermore, a communicator for achieving a function related to Network Slice Specific Authentication and Authorization in 5GS is provided by providing a procedure and a communicator for changing a UE configuration initiated by a network, the procedure being initiated based on the Network Slice Specific Authentication and Authorization initiated by the network and completion of the Network Slice Specific Authentication and Authorization.
1. A User Equipment (UE) comprising:
at least one processor; and
one or more non-transitory computer-readable media coupled to the at least one processor and storing one or more instructions which, when executed by the at least one processor, cause the UE to:
receive a registration accept message including Single Network Slice Selection Assistance Information (S-NSSAI) which is rejected from a core network;
store the S-NSSAI in a storage;
start a timer associated with the S-NSSAI;
delete the S-NSSAI from the storage in a case that the timer expires; and
in a case that rejected Network Slice Selection Assistance Information (NSSAI) including the S-NSSAI is received from the core network, stop the timer associated with the S-NSSAI.
2. The UE according to claim 1 , wherein the one or more instructions, when executed by the at least one processor, further cause the UE to:
in a case that a timer value is received with the S-NSSAI, start the timer with the timer value.
3. The UE according to claim 1 , wherein the one or more instructions, when executed by the at least one processor, further cause the UE to:
start the timer with a timer value stored by the UE in advance.
4. The UE according to claim 1 , wherein the one or more instructions, when executed by the at least one processor, further cause the UE to:
in a case that allowed NSSAI is received and the allowed NSSAI includes the S-NSSAI, stop the timer.
5. The UE according to claim 2 , wherein
the timer value is associated with the S-NSSAI.
6. A communication control method performed by a User Equipment (UE), the communication control method comprising:
receiving a registration accept message including Single Network Slice Selection Assistance Information (S-NSSAI) which is rejected from a core network;
storing the S-NSSAI in the UE;
starting a timer associated with the S-NSSAI;
deleting the S-NSSAI from the UE in a case that the timer expires; and
in a case that the UE receives rejected Network Slice Selection Assistance Information (NSSAI) including the S-NSSAI from the core network, stopping the timer associated with the S-NSSAI.