US 12,335,910 B2
Method and apparatus for transmitting and receiving mode reference signal in wireless communication system
Jinyoung Oh, Suwon-si (KR); Taehyoung Kim, Suwon-si (KR); Jinhyun Park, Suwon-si (KR); Youngrok Jang, 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 Sep. 17, 2021, as Appl. No. 17/477,941.
Claims priority of application No. 10-2020-0120439 (KR), filed on Sep. 18, 2020.
Prior Publication US 2022/0095268 A1, Mar. 24, 2022
Int. Cl. H04W 68/00 (2009.01); H04L 5/00 (2006.01); H04W 52/52 (2009.01); H04W 72/1263 (2023.01); H04W 72/54 (2023.01)
CPC H04W 68/005 (2013.01) [H04L 5/0051 (2013.01); H04W 52/52 (2013.01); H04W 72/1263 (2013.01); H04W 72/54 (2023.01)] 15 Claims
OG exemplary drawing
 
1. A method performed by a terminal in a communication system, the method comprising:
receiving, from a base station, a system information block (SIB) configuring an idle/inactive state reference signal (IRS) resource for an idle state or an inactive state, wherein an IRS availability indication is enabled based on a configuration in the SIB;
receiving, from the base station, downlink control information (DCI), wherein the DCI includes the IRS availability indication indicating presence of an IRS in a specific time interval in case that the configuration enables the IRS availability indication and the IRS is received according to an IRS type B; and
receiving, from the base station, the IRS in the specific time interval while the idle state or the inactive state,
wherein the specific time interval is determined based on a reception timing of the DCI including IRS availability indication and a paging cycle, and
wherein:
one of an IRS type A or the IRS type B is determined based on a periodicity of the IRS,
the IRS type A is defined as a type in which the IRS is always present in IRS occasions, and
the IRS type B is defined as a type in which the IRS is present or not present in the IRS occasions.