Wireless communications systems and methods related to performing listen-before-talk (LBT) with discovery signal transmissions for spectrum sharing are provided. A wireless communication device senses a channel in a spatial domain based on a plurality of expected beam transmission directions, wherein the wireless communication device is associated with a first network operating entity, and wherein the channel is shared by a plurality of network operating entities including the first network operating entity. The wireless communication device transmits a plurality of discovery signals in one or more of the plurality of expected beam transmission directions during a discovery period to facilitate synchronization in the channel based on the sensing.