US 12,452,019 B2
Method and device for transmitting/receiving CSI-RS in wireless communication system
Hyungtae Kim, Seoul (KR); Jiwon Kang, Seoul (KR); and Kyuseok Kim, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/998,319
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed May 12, 2021, PCT No. PCT/KR2021/005915
§ 371(c)(1), (2) Date Nov. 9, 2022,
PCT Pub. No. WO2021/230640, PCT Pub. Date Nov. 18, 2021.
Claims priority of application No. 10-2020-0057266 (KR), filed on May 13, 2020.
Prior Publication US 2023/0239114 A1, Jul. 27, 2023
Int. Cl. H04L 5/00 (2006.01); H04W 72/232 (2023.01)
CPC H04L 5/0053 (2013.01) [H04W 72/232 (2023.01)] 11 Claims
OG exemplary drawing
 
1. A method comprising:
receiving, by a terminal from a base station, downlink control information for triggering an aperiodic channel state information-reference signal (CSI-RS); and
receiving, from the base station, the aperiodic CSI-RS based on the downlink control information,
wherein based on a scheduling offset of the aperiodic CSI-RS being smaller than a beam switch timing of the terminal, a quasi co-location (QCL) assumption of a downlink signal associated with the same control resource set pool index as a control resource set pool index of a control resource set for the downlink control information is applied for reception of the aperiodic CSI-RS,
wherein the downlink signal is a periodic or semi-persistent downlink signal, and
wherein based on the downlink signal being included in at least i) QCL reference signals configured for one or more control resource sets with the control resource set pool index or ii) other reference signals where the QCL reference signals are configured as QCL source reference signals, the downlink signal is determined to be associated with the control resource set pool index.