Power saving signals in wireless communication

A wireless transmit/receive unit (WTRU) comprising a processor and memory, the processor and memory configured to:

• receive a wakeup signal (WUS) during a period of time prior to a start of discontinuous reception (DRX) active time when performing DRX in accordance with a long DRX cycle length;
• start an on-duration timer when performing DRX in accordance with the long DRX cycle length in response to receiving the WUS, wherein the WUS indicates that the WTRU is to monitor for physical downlink control channel (PDCCH) transmissions during DRX active time when the WTRU is performing DRX in accordance with the long DRX cycle length;
• and
• start the on-duration timer when the WTRU is performing DRX in accordance with a short DRX cycle length, wherein the WTRU is configured to start the on-duration timer when performing DRX in accordance with the short DRX cycle length irrespective of whether the WUS is received during the period of time prior to the start of DRX active time when performing DRX in accordance with the short DRX cycle length, and wherein the long DRX cycle length is longer than the short DRX cycle length.