Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless node may perform a listen-before-talk (LBT) procedure with a directional coverage that is based at least in part on a directional coverage of a set of synchronization signal and physical broadcast channel (PBCH) blocks (SSBs) of a synchronization signal (SS) burst set to be transmitted by the base station. The first wireless node may transmit, to one or more second wireless nodes, the set of SSBs based at least in part on a successful result of the LBT procedure. Numerous other aspects are provided.