Method of monitoring physical downlink control channel for power saving signal and related device

A user equipment (UE) for monitoring a physical downlink control channel (PDCCH) for power saving signaling, the UE comprising:

• a transceiver;
• a processor, for executing computer-executable instructions;
• and
• a non-transitory machine-readable medium, coupled to the processor, for storing the computer-executable instructions, wherein the computer-executable instructions instruct the processor to:
• receive, via the transceiver, a discontinuous reception (DRX) configuration from a base station (BS) to configure the UE to monitor a scheduling signal on the PDCCH within a DRX active time;
• receive, via the transceiver, a configuration from the BS to configure the UE to monitor the power saving signaling on the PDCCH, the power saving signaling configuration comprising a time offset between a nearest power saving signaling and a start of a DRX on-duration time;
• monitor the PDCCH for the power saving signaling when the time offset is greater than a required time duration;
• and
• wake up to monitor the PDCCH for the scheduling signal in the DRX active time in accordance to the DRX configuration in response to receiving a power saving signaling indicating to wake up.