US 12,256,238 B2
Method and apparatus for configuring default beam for network cooperative communication
Hyoungju Ji, Suwon-si (KR); Jinhyun Park, Suwon-si (KR); Hoondong Noh, Suwon-si (KR); and Youngrok Jang, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Appl. No. 17/779,849
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
PCT Filed Nov. 24, 2020, PCT No. PCT/KR2020/016697
§ 371(c)(1), (2) Date May 25, 2022,
PCT Pub. No. WO2021/107564, PCT Pub. Date Jun. 3, 2021.
Claims priority of provisional application 62/939,811, filed on Nov. 25, 2019.
Claims priority of application No. 10-2020-0015435 (KR), filed on Feb. 10, 2020.
Prior Publication US 2023/0023719 A1, Jan. 26, 2023
Int. Cl. H04W 16/28 (2009.01); H04W 72/02 (2009.01); H04W 72/044 (2023.01); H04W 72/21 (2023.01)
CPC H04W 16/28 (2013.01) [H04W 72/02 (2013.01); H04W 72/046 (2013.01); H04W 72/21 (2023.01)] 15 Claims
OG exemplary drawing
 
1. A method performed by a user equipment (UE) in a communication system, the method comprising:
determining a spatial domain filter for a physical uplink control channel (PUCCH) transmission based on a control resource set (CORESET) with a lowest index among a plurality of CORESETs in a cell in case of identifying that (i) a pathloss reference signal is not configured, (ii) spatial relation information for the PUCCH transmission is not configured and (iii) two control resource set (CORESET) pool indexes are not configured; and
transmitting, to a base station, the PUCCH transmission using the spatial domain filter,
wherein in case that two transmission configuration indication (TCI) states are activated for the CORESET by a UE-specific physical downlink control channel (PDCCH) medium access control (MAC) control element (CE) for the CORESET, the spatial domain filter is determined further based on a first TCI state among the two TCI states.