US 12,413,335 B2
UE performing blind decoding, communication system including the same, and operation method of the UE and the communication system
Juhyuk Im, Gunpo-si (KR); Daeson Kim, Seoul (KR); and Hoguen Ji, Hwaseong-si (KR)
Assigned to Samsung Electronics Co., Ltd., Gyeonggi-do (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Dec. 1, 2021, as Appl. No. 17/539,710.
Claims priority of application No. 10-2020-0167662 (KR), filed on Dec. 3, 2020; and application No. 10-2021-0014401 (KR), filed on Feb. 1, 2021.
Prior Publication US 2022/0182177 A1, Jun. 9, 2022
Int. Cl. H04L 1/00 (2006.01); H04W 72/0453 (2023.01); H04W 72/23 (2023.01)
CPC H04L 1/0045 (2013.01) [H04W 72/0453 (2013.01); H04W 72/23 (2023.01)] 20 Claims
OG exemplary drawing
 
1. An operating method of a terminal, the operating method comprising:
determining a decoding priority of a plurality of aggregation levels based on reference information, the plurality of aggregation levels corresponding to a downlink control channel;
performing candidate filtering-based blind decoding on one or more control channel candidates corresponding to the plurality of aggregation levels according to the decoding priority to obtain a decoding result; and
receiving downlink control information based on the decoding result, wherein
the plurality of aggregation levels comprise a first aggregation level, a second aggregation level lower than the first aggregation level and a third aggregation level higher than the first aggregation level, and
the performing candidate filtering-based blind decoding comprises performing decoding on a first control channel candidate of the first aggregation level to obtain a first decoding result, the first control channel candidate being among the one or more control channel candidates, and
selecting one among a second control channel candidate of the second aggregation level and a third control channel candidate of the third aggregation level to be excluded from blind decoding based on a network state in response to determining the first decoding result exceeds a first threshold, the network state corresponding to a comparison result between a measured signal quality and a second threshold,
wherein the first control channel candidate overlaps with the second and third control channel candidates.