Methods and apparatus for performing network slice reselection

A method for performing network slice reselection by a user equipment (UE), the method comprising:

• identifying one or more allowed network slices within a first network slice simultaneous registration group (NSSRG) for one or more first applications at the UE;
• receiving an initialization request from a second application at the UE;
• determining one or more route selection policy (URSP) rules for the second application based on the received initialization request, the one or more URSP rules indicating at least one network slice required for the second application;
• determining whether the at least one network slice required for the second application corresponds to one of the one or more allowed network slices within the first NSSRG;
• and
• based on determining that the at least one network slice required for the second application does not correspond to the one or more allowed network slices:
• identifying a weight corresponding to each of the second application and the one or more first applications;
• comparing the weight corresponding to each of the second application with the weight corresponding to each of the one or more first applications;
• and
• transmitting, to a network, a second registration request for registration of the UE to a second NSSRG including the at least one network slice required for the second application based on determining that the weight corresponding to each of the second application is greater than the weight corresponding to each of the one or more first applications.

A user equipment (UE) configured to perform network slice reselection, the UE comprising:

• a memory storing instructions;
• and
• at least one processor comprising processing circuitry communicably coupled to the memory, wherein the at least one processor is configured to execute the instructions to:
• identify one or more allowed network slices within a first network slice simultaneous registration group (NSSRG) for one or more first applications at the UE;
• receive an initialization request from a second application at the UE;
• determine one or more route selection policy (URSP) rules for the second application based on the received initialization request, the one or more URSP rules indicating at least one network slice required for the second application;
• determine whether the at least one network slice required for the second application corresponds to one of the one or more allowed network slices within the first NSSRG;
• and
• transmit, to a network, a second registration request for registration of the UE to a second NSSRG including the at least one network slice required for the second application based on the URSP rules for the second application, based on determining that the at least one network slice required for the second application does not correspond to the one or more allowed network slices.

A user equipment (UE) configured to perform network slice reselection, the UE comprising:

• a memory storing instructions;
• and
• at least one processor, comprising processing circuitry, communicably coupled to the memory, wherein the at least one processor is configured to execute the instructions to:
• identify one or more allowed network slices within a first network slice simultaneous registration group (NSSRG) for one or more first applications at the UE;
• receive an initialization request from a second application at the UE;
• determine one or more route selection policy (URSP) rules for the second application based on the received initialization request, the one or more URSP rules indicating at least one network slice required for the second application;
• determine whether the at least one network slice required for the second application corresponds to one of the one or more allowed network slices within the first NSSRG;
• and
• based on determining that the at least one network slice required for the second application does not correspond to the one or more allowed network slices:
• identify a weight corresponding to each of the second application and the one or more first applications;
• compare the weight corresponding to each of the second application with the weight corresponding to each of the one or more first applications;
• and
• transmit, to a network, a second registration request for registration of the UE to a second NSSRG including the at least one network slice required for the second application based on determining that the weight corresponding to each of the second application is greater than the weight corresponding to each of the one or more first applications.