US 12,218,876 B2
Method and apparatus for simultaneous activation of downlink control information transmission beam in wireless communication system
Youngrok Jang, Suwon-si (KR); Ameha Tsegaye Abebe, Suwon-si (KR); Seongmok Lim, Suwon-si (KR); and Hyoungju Ji, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on May 2, 2022, as Appl. No. 17/734,854.
Claims priority of application No. 10-2021-0058113 (KR), filed on May 4, 2021.
Prior Publication US 2022/0385425 A1, Dec. 1, 2022
Int. Cl. H04L 5/00 (2006.01); H04W 76/30 (2018.01)
CPC H04L 5/0051 (2013.01) [H04W 76/30 (2018.02)] 14 Claims
OG exemplary drawing
 
1. A method performed by a terminal in a wireless communication system, the method comprising:
receiving, from a base station, a radio resource control (RRC) message including information indicating a list of serving cells for simultaneous transmission configuration indication TCI) state activation;
receiving, from the base station, a medium access control (MAC) control element (CE) including a serving cell identifier (ID) field, a control resource set (CORESET) ID field, a reserved field, and a first TCI state ID field and a second TCI state ID field, wherein a length of the serving cell ID field is 5 bits, a length of the CORESET ID field is 4 bits, a length of the reserved field is 1 bit, a length of the first TCI state ID field is 7 bits, and a length of the second TCI state ID field is 7 bits; and
in case that a serving cell indicated by the serving cell ID field is configured as part of the list of serving cells, applying the MAC CE to all serving cells in the list of serving cells.