公开(公告)号：US20230403635A1

公开(公告)日：2023-12-14

申请号：US18031107

申请日：2021-10-14

Applicant: LG ELECTRONICS INC.

Inventor： Hyunmin KIM ,  Dongsun Lee ,  Byounggill Kim ,  Jomgku Lee ,  Sunam Kim ,  Taehowan Hong

IPC: H04W48/10 ,  H04W72/25 ,  H04W72/0446 ,  H04W8/00

CPC classification number: H04W48/10 ,  H04W72/25 ,  H04W72/0446 ,  H04W8/005

Abstract: Provided are a method by which a transmission terminal performs groupcast transmission in a wireless communication system, and a device. The method transmits a synchronization signal block (SSB) through an SSB beam, receives, from each of a plurality of terminals, a discovery message as a response to the SSB, determines a groupcast transmission timing for specific terminals from among the plurality of terminals on the basis of the discovery message, transmits, to the specific terminals, a group transmission/reception timing message indicating the groupcast transmission timing, and performs groupcast transmission for the specific terminals by using the SSB beam at the groupcast transmission timing.