CPC H04W 52/0235 (2013.01) [H04L 1/1812 (2013.01); H04L 5/0055 (2013.01); H04W 72/23 (2023.01)] | 18 Claims |
1. A method for managing monitoring of a Physical downlink Control Channel (PDCCH) in a wireless communication system, the method comprising:
enabling, by a User Equipment (UE), a Wake Up Signal (WUS) operation mode, on receiving configurations of a discontinuous reception (DRX) cycle and at least one power saving signal from a Base Station (BS), wherein the at least one power saving signal includes a WUS;
receiving, by the UE, the WUS from the BS before an On-duration of the DRX cycle in the enabled WUS operation mode;
monitoring, by the UE, the PDCCH for downlink control information, if the received WUS indicates presence of the PDCCH;
performing, by the UE, a transition into a sleep state during the ON-duration of the DRX cycle, if the received WUS indicates absence of the PDCCH,
wherein the at least one power saving signal further includes a Go To Sleep (GTS) signal and a PDCCH adaptation signal, wherein the PDCCH adaptation signal triggers at least one power saving approach;
receiving, by the UE, the GTS signal from the BS in an active time of the DRX cycle if additional monitoring of the PDCCH is not required, wherein the active time of the DRX cycle indicates the monitoring of the PDCCH by the UE for the downlink control information;
sending, by the UE, a Hybrid automatic repeat request (HARQ) acknowledgement (ACK) to the BS on receiving the GTS signal; and
performing, by the UE, the transition into the sleep state by abandoning the monitoring of the PDCCH during the active time of the DRX cycle, on sending the HARQ ACK to the BS.
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