User equipment (ue) techniques for constraints on simultaneous use of network slices

A User Equipment (UE), comprising:

• radio frequency (RF) circuitry;
• and
• a processor configured to execute instructions stored in a memory to cause the UE to:
• transmit, via the RF circuitry, an initial registration message that comprises an indication of a UE capability of support for simultaneous slice usage constraints;
• receive a first registration accept message indicating slice compatibility information for each configured network slice of a set of configured network slices, wherein the slice compatibility information for each configured network slice indicates whether other configured network slices of the set of configured network slices are compatible for simultaneous registration;
• and
• transmit, via the RF circuitry, an additional registration message to request registration on a set of requested network slices, wherein the set of requested network slices is a subset of the set of configured network slices, and wherein the set of requested network slices is compatible for simultaneous registration according to the slice compatibility information.

A non-transitory computer readable medium comprising instructions, that when executed by a processor, cause the processor to:

• send an initial registration message that comprises an indication of support for simultaneous slice usage constraints;
• receive a first registration accept message indicating slice compatibility information for each configured network slice of a set of configured network slices, wherein the slice compatibility information for each configured network slice indicates whether other configured network slices of the set of configured network slices are compatible for simultaneous registration;
• and
• send an additional registration message to request registration on a set of requested network slices, wherein the set of requested network slices is a subset of the set of configured network slices, and wherein the set of requested network slices is compatible for simultaneous registration according to the slice compatibility information.