MECHANISM FOR SSB TRANSMISSION IN NR-U
Abstract:
The present application is directed to an apparatus including a non-transitory memory including instructions stored thereon for monitoring synchronous signals and physical broadcast channels (SSBs) from a network node. The apparatus also includes a processor, operably coupled to the non-transitory memory, configured to execute a set of instructions. The instructions include configuring the apparatus for a STTC (SSB Transmission Timing Configuration). The instructions also include monitoring the STTC for the SSBs. The instructions further include determining a first one of the SSBs in a first slot of a subframe in a scheduled SSB transmission in the STTC has been transmitted at a first scheduled location, where the transmission of the first one of the SSBs is based upon confirmation of a successful Listen Before Talk (LBT) available channel prior to the scheduled SSB transmission in the STTC. The instructions even further include determining a second one of the SSBs in the scheduled SSB transmission in the STTC successfully or failed to transmit at a second scheduled location. The instructions yet even further include observing transmission of the second one of the SSBs in the first slot or a second slot.
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