	US 12,156,042 B2
	Method and device for managing beam in sidelink communication
Su Han Choi, Gyeonggi-do (KR); Gene Back Hahn, Gyeonggi-do (KR); and In Yong Jung, Gyeonggi-do (KR)
Assigned to Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Appl. No. 17/430,247
Filed by Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
PCT Filed Feb. 14, 2020, PCT No. PCT/KR2020/002126 § 371(c)(1), (2) Date Aug. 11, 2021, PCT Pub. No. WO2020/167038, PCT Pub. Date Aug. 20, 2020.
Claims priority of provisional application 62/806,272, filed on Feb. 15, 2019.
Prior Publication US 2022/0167180 A1, May 26, 2022
Int. Cl. H04W 16/28 (2009.01); H04W 24/10 (2009.01); H04W 56/00 (2009.01); H04W 92/18 (2009.01)

CPC H04W 16/28 (2013.01) [H04W 24/10 (2013.01); H04W 56/001 (2013.01); H04W 92/18 (2013.01)]

19 Claims

1. An operation method of a first terminal in a communication system, the operation method comprising:

transmitting first sidelink signals in all directions using a beam sweeping scheme in an initial beam management period;

receiving first feedback information for the first sidelink signals from a second terminal;

configuring a first beam pair between the first terminal and the second terminal based on the first feedback information;

performing sidelink communication with the second terminal using the first beam pair;

in response to determining that reconfiguration of the first beam pair is required, transmitting second sidelink signals in a specific direction instead of all directions using a beam sweeping scheme in a partial beam management period; and

transmitting third sidelink signals in all directions using a beam sweeping scheme when the first beam pair is not reconfigured within the partial beam management period.