User equipment and wireless communication method for network slicing

A user equipment (UE), comprising:

• a processor;
• and
• a memory coupled to the processor, the memory storing a computer-executable program that when executed by the processor, causes the processor to:
• transmit, to a first base station, a radio resource control (RRC) message indicating a requested network slice, the RRC message including a UE identifier (ID) and single network slice selection assistance information (S-NSSAI);
• receive, from the first base station, a network slice response indicating the requested network slice is rejected and a cause of the rejection;
• and
• establish a first RRC connection with the first base station.

A wireless communication method, comprising:

• receiving, by a first base station, a radio resource control (RRC) message indicating a requested network slice from a user equipment (UE), the RRC message including a UE identifier (ID) and single network slice selection assistance information (S-NSSAI);
• transmitting, by the first base station, a network slice response to the UE, the network slice response indicating the requested network slice is rejected and a cause of the rejection;
• and
• establishing a first RRC connection between the first base station and the UE.