Listen-before-talk for discovery reference signal transmission

Abstract

Apparatuses, methods, and systems are disclosed for directional LBT procedure for DRS transmission. One apparatus (800) includes a processor (805) and a transceiver (825) that is operable on unlicensed spectrum. The processor (805) indicates (905) block locations within a Discovery Reference Signal (“DRS”) transmission window for a plurality of candidate 5 Synchronization Signal/Physical Broadcast Channel (“SS/PBCH”) blocks. The processor (805) performs (910) a Listen-Before-Talk (“LBT”) procedure for a plurality of DRS transmissions within a DRS transmission window and controls the transceiver (825) to transmit (915) — for a given spatial direction — a SS/PBCH block upon successful LBT for the given spatial direction.

Dependencies are inferred from the claim text.