US 12,356,314 B2
Beam search method and apparatus in smart repeater system
An Seok Lee, Daejeon (KR); Heesoo Lee, Daejeon (KR); Seung Jae Bahng, Daejeon (KR); and Jung Sook Bae, Daejeon (KR)
Assigned to ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon (KR)
Filed by Electronics and Telecommunications Research Institute, Daejeon (KR)
Filed on Nov. 28, 2022, as Appl. No. 17/994,914.
Claims priority of application No. 10-2021-0167267 (KR), filed on Nov. 29, 2021; and application No. 10-2022-0122941 (KR), filed on Sep. 28, 2022.
Prior Publication US 2023/0171675 A1, Jun. 1, 2023
Int. Cl. H04W 48/08 (2009.01); H04B 7/06 (2006.01); H04B 7/15 (2006.01); H04W 16/28 (2009.01)
CPC H04W 48/08 (2013.01) [H04B 7/0695 (2013.01); H04B 7/15 (2013.01); H04W 16/28 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An operation method of a first device in a communication system, the method comprising:
receiving, at a second device, a primary synchronization signal block (SSB) including first SSBs for the first device;
feeding back to the second device an index of a first SSB with a highest received signal strength among the first SSBs of the first SSB set;
receiving, at the second device, a second SSB set including the first SSBs for the first device and second SSBs for a third device;
relaying to the third device the second SSBs for the third device in the second SSB set received from the second device; and
relaying an index of a second SSB with a highest received signal strength among the second SSBs to the second device, the index being received from the third device,
wherein the first device is a first smart repeater, the second device is at least one of a base station and the third device is a terminal.