Asynchronous single beam directional listen-before-talk

A method for wireless communication, comprising:

• performing a sequential energy detection-based listen-before-talk (LBT) channel access procedure on a shared radio frequency spectrum band using a plurality of beam configurations;
• determining, based at least in part on successful completion of the channel access procedure for a first beam configuration of the plurality of beam configurations, that the shared radio frequency spectrum band is available for data communications using the first beam configuration;
• and
• transmitting the data communications on the shared radio frequency spectrum band using the first beam configuration.

An apparatus for wireless communication, comprising:

• a processor;
• memory in electronic communication with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• perform a channel access procedure on a shared radio frequency spectrum band using a first beam configuration;
• transmit, based at least in part on successful completion of the channel access procedure, a reservation request message (RRQ) to a user equipment (UE) using a second beam configuration, the second beam configuration comprising a beam width that is equal to or narrower than a beam width of the first beam configuration;
• and
• receive a reservation response message (RRS) from the UE in response to the RRQ, the RRS comprising a third beam configuration that is based at least in part on the second beam configuration.

An apparatus for wireless communication, comprising:

• a processor;
• memory in electronic communication with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• perform a sequential energy detection-based listen-before-talk (LBT) channel access procedure on a shared radio frequency spectrum band using a plurality of beam configurations;
• determine, based at least in part on successful completion of the channel access procedure for a first beam configuration of the plurality of beam configurations, that the shared radio frequency spectrum band is available for data communications using the first beam configuration;
• and
• transmit the data communications on the shared radio frequency spectrum band using the first beam configuration.