US 12,245,321 B2
DRX operation in wireless communication system, operation method in dormant BWP and terminal using method
Inkwon Seo, Seoul (KR); Joonkui Ahn, Seoul (KR); Suckchel Yang, Seoul (KR); and Seonwook Kim, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/754,295
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Sep. 2, 2020, PCT No. PCT/KR2020/011770
§ 371(c)(1), (2) Date Mar. 29, 2022,
PCT Pub. No. WO2021/066331, PCT Pub. Date Apr. 8, 2021.
Claims priority of provisional application 62/910,378, filed on Oct. 3, 2019.
Prior Publication US 2022/0330378 A1, Oct. 13, 2022
Int. Cl. H04W 76/28 (2018.01); H04L 5/00 (2006.01); H04W 24/08 (2009.01); H04W 72/044 (2023.01); H04W 72/23 (2023.01)
CPC H04W 76/28 (2018.02) [H04L 5/0098 (2013.01); H04W 24/08 (2013.01); H04W 72/044 (2013.01); H04W 72/23 (2023.01)] 10 Claims
OG exemplary drawing
 
1. A method comprising:
receiving, from a base station, discontinuous reception (DRX) configuration information by a user equipment (UE) to which a primary cell (PCell) and a secondary cell (SCell) are configured;
performing, by the UE, a first physical downlink control channel (PDCCH) monitoring based on the DRX configuration information;
receiving, from the base station by the UE, dormant bandwidth part (BWP) configuration information, wherein the dormant BWP configuration information is information about a downlink BWP to be used as a dormant BWP among at least one downlink BWP on the SCell configured for the UE;
receiving, from the base station by the UE, downlink control information (DCI) informing an activation of the dormant BWP;
transmitting Hybrid Automatic Repeat and reQuest-acknowledgement (HARQ-ACK) information for the DCI to the base station in a specific resource by the UE; and
stopping a second PDCCH monitoring in the dormant BWP on the SCell by the UE,
wherein the specific resource is informed by the DCI, and
wherein a BWP inactivity timer is not used for transitioning from the dormant BWP, which is activated, to a default BWP.