Patent ID: 11882537
Assignee: LG ELECTRONICS INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method for performing, by a first device, wireless communication, the method comprising:
obtaining first information related to sidelink (SL) synchronization priority order,
wherein the first information is set to Global Navigation Satellite Systems (GNSS)-based synchronization,
wherein synchronization references include a user equipment (UE) directly synchronized with a GNSS, a UE indirectly synchronized with the GNSS, a base station (BS), a UE directly synchronized with the BS, and a UE indirectly synchronized with the BS, and
wherein the UE directly synchronized with the GNSS has a higher synchronization priority than the UE indirectly synchronized with the GNSS, and the UE indirectly synchronized with the GNSS has a higher synchronization priority than the BS, and the BS has a higher synchronization priority than the UE directly synchronized with the BS, and the UE directly synchronized with the BS has a higher synchronization priority than the UE indirectly synchronized with the BS;
obtaining second information representing whether or not the BS can be selected as a synchronization reference; and
performing synchronization with one synchronization reference among the UE directly synchronized with the GNSS and the UE indirectly synchronized with the GNSS, based on the second information representing that the BS cannot be selected as the synchronization reference.