Communication method and user equipment

A user equipment comprising:

• a processor configured to perform:
• processing of specifying, as a candidate cell for cell reselection, a cell belonging to a frequency supporting a selected network slice group selected in accordance with a priority provided by a NAS layer;
• and
• processing of determining whether the candidate cell supports the selected network slice group,
• wherein the processing of the determining comprises:
• processing of receiving a system information block from a serving cell of a user equipment for each of a plurality of network slice groups, the system information block comprising information indicating an identifier of the network slice group and a cell identifier of a cell that does not support the network slice group;
• and
• processing of determining whether the candidate cell supports the selected network slice group, based on the information.

An apparatus for controlling a user equipment, the apparatus comprising a processor and a memory, the processor configured to perform:

• processing of specifying, as a candidate cell for cell reselection, a cell belonging to a frequency supporting a selected network slice group selected in accordance with a priority provided by a NAS layer;
• and
• processing of determining whether the candidate cell supports the selected network slice group,
• wherein the processing of the determining comprises:
• processing of receiving a system information block from a serving cell of a user equipment for each of a plurality of network slice groups, the system information block comprising information indicating an identifier of the network slice group and a cell identifier of a cell that does not support the network slice group;
• and
• processing of determining whether the candidate cell supports the selected network slice group, based on the information to perform:
• processing of specifying, as a candidate cell for cell reselection, a cell belonging to a frequency supporting a selected network slice group selected in accordance with a priority provided by a NAS layer;
• and
• processing of determining whether the candidate cell supports the selected network slice group,
• wherein the processing of the determining comprises:
• processing of receiving a system information block from a serving cell of a user equipment for each of a plurality of network slice groups, the system information block comprising information indicating an identifier of the network slice group and a cell identifier of a cell that does not support the network slice group;
• and
• processing of determining whether the candidate cell supports the selected network slice group, based on the information.