US 12,068,852 B2
Apparatus and method for detecting false alarm of decryption in wireless communication system
Min Jang, Gyeonggi-do (KR); Sanghyo Kim, Gyeonggi-do (KR); Hyunjae Lee, Gyeonggi-do (KR); Hyosang Ju, Gyeonggi-do (KR); Jonghwan Kim, Gyeonggi-do (KR); Hyuntack Lim, Gyeonggi-do (KR); and Hongsil Jeong, Gyeonggi-do (KR)
Assigned to Samsung Electronics Co., Ltd, (KR); and Research and Business Foundation Sungkyunkwan University, (KR)
Appl. No. 17/433,152
Filed by Samsung Electronics Co., Ltd., Gyeonggi-do (KR); and Research & Business Foundation Sungkyunkwan University, Gyeonggi-do (KR)
PCT Filed Feb. 21, 2020, PCT No. PCT/KR2020/002543
§ 371(c)(1), (2) Date Aug. 23, 2021,
PCT Pub. No. WO2020/171651, PCT Pub. Date Aug. 27, 2020.
Claims priority of application No. 10-2019-0020328 (KR), filed on Feb. 21, 2019.
Prior Publication US 2022/0140944 A1, May 5, 2022
Int. Cl. H04L 1/00 (2006.01); H04L 1/20 (2006.01)
CPC H04L 1/0061 (2013.01) [H04L 1/0026 (2013.01); H04L 1/0046 (2013.01); H04L 1/203 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method performed by a receiving node in a wireless communication system, comprising:
receiving a signal from a transmitting node;
determining an energy metric by normalizing an average energy of the received signal;
identifying whether the energy metric exceeds a first threshold;
obtaining a plurality of decoding paths by decoding bits contained in the received signal based on identification that the energy metric exceeds the first threshold; and
identifying whether the decoding is successful based on a detection metric determined based on values representing path metrics of the plurality of the decoding paths,
wherein the detection metric is determined by dividing an absolute value of a difference between a maximum value among the path metrics of the plurality of the decoding paths and a minimum value among path metrics of decoding paths passing a cyclic redundancy check (CRC) check by an average value of the path metrics of the plurality of the decoding paths.