As shown in FIG. 3, a first UE 302 (e.g., UE 120e) may communicate with a second UE 304 (e.g., UE 120a) (and one or more other UEs) via one or more sidelink channels 310. UE 302 and UE 304 may communicate using the one or more sidelink channels 310 for P2P communications, D2D communications, V2X communications (e.g., which may include V2V communications, V2I communications, and/or V2P communications) and/or mesh networking. In some aspects, UE 302 and UE 304 may correspond to one or more other UEs. In some aspects, the one or more sidelink channels 310 may use a PC5 interface and/or may operate in a high frequency band (e.g., the 5.9 gigahertz (GHz) band). Additionally, or alternatively, UE 302 and UE 304 may synchronize timing of transmission time intervals (TTIs) (e.g., frames, subframes, slots, or symbols) using global navigation satellite system (GNSS) timing.