Configuration and signaling for UL NOMA operations

A method performed by a wireless transmit/receive unit (WTRU), the method comprising:

• receiving, by the WTRU and while the WTRU is in an RRC connected state, a radio resource control (RRC) release message comprising configuration information indicating one or more configured grant (CG) resources, wherein the configuration information further indicates at least one of:
• a periodicity, a time allocation, a frequency allocation, a modulation coding scheme, or a transport block size;
• and
• while the WTRU is in an RRC inactive state:
• receiving, by the WTRU, a paging message;
• based at least on receiving the paging message, sending, by the WTRU, an uplink (UL) transmission using one of the indicated CG resources, wherein the UL transmission comprises an RRC resume request message;
• wherein receiving a paging message comprises receiving a physical downlink control channel (PDCCH) transmission including downlink control information (DCI), wherein the DCI is associated with the paging message;
• wherein the DCI uses a paging radio network temporary identifier (P-RNTI).