US 12,144,001 B2
Monitoring physical downlink control channel in wireless communication system
Changhwan Park, Seoul (KR); Inkwon Seo, Seoul (KR); and Joonkui Ahn, Seoul (KR)
Assigned to LG Electronics Inc., Seoul (KR)
Appl. No. 17/604,863
Filed by LG Electronics Inc., Seoul (KR)
PCT Filed Apr. 29, 2020, PCT No. PCT/KR2020/005738
§ 371(c)(1), (2) Date Oct. 19, 2021,
PCT Pub. No. WO2020/226355, PCT Pub. Date Nov. 12, 2020.
Claims priority of application No. 10-2019-0052252 (KR), filed on May 3, 2019.
Prior Publication US 2022/0201736 A1, Jun. 23, 2022
Int. Cl. H04W 52/02 (2009.01); H04L 5/00 (2006.01); H04W 72/23 (2023.01)
CPC H04W 72/23 (2023.01) [H04L 5/0092 (2013.01); H04W 52/0229 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method of monitoring a physical downlink control channel (PDCCH) by a user equipment (UE) for power saving in a wireless communication system, the method comprising:
reporting, to a base station, time information informing a specific time gap for an active downlink bandwidth part (DL BWP);
receiving, from the base station, a first PDCCH comprising a wake-up signal in the active DL BWP, wherein the first PDCCH is used to inform the UE to monitor a second PDCCH during a time duration; and
monitoring the second PDCCH during the time duration in the active DL BWP,
wherein the first PDCCH is received at a time earlier than the specific time gap from a beginning of the time duration,
wherein the UE is not required to monitor the first PDCCH during the specific time gap prior to the beginning of the time duration, and
wherein the specific time gap is dependent on a subcarrier spacing (SCS) of the active DL BWP.