Listen before talk signaling and channel occupancy time sharing

A method, comprising:

• communicate with a base station;
• exchange, with the base station, configuration information;
• receive, from the base station, an uplink grant scheduling a first uplink transmission on at least a first part of a first channel;
• compare a bandwidth of a bandwidth part indicated in the configuration information divided by an integer greater than 1, and a minimum unit bandwidth based on a minimum channel bandwidth, per subcarrier spacing (SCS);
• determine, based on the configuration information, a listen before talk (LBT) unit bandwidth, wherein the LBT unit bandwidth is the larger of:
• the bandwidth of the bandwidth part indicated in the configuration information divided by the integer greater than 1, and
• the minimum unit bandwidth based on the minimum channel bandwidth, per subcarrier spacing (SCS);
• determine whether a first part of the first channel has a bandwidth within a single unit of the LBT unit bandwidth;
• perform a LBT procedure, wherein the LBT procedure is performed either:
• using the LBT unit bandwidth on the first channel in response to a determination that the first part of the first channel has a bandwidth within the single unit of the LBT unit bandwidth;
• or
• using a first bandwidth of the first channel in response to a determination that the first part of the first channel has a bandwidth that is not within the single unit of the LBT unit bandwidth;
• determine that the LBT procedure is successful on at least a first portion of the first channel, wherein the first portion of the first channel has a bandwidth equal to the LBT unit bandwidth;
• and
• in response to the determination that the LBT procedure is successful on at least the first portion of the first channel, transmit, to the base station, the first uplink transmission at least in part on the first portion of the first channel.

A method, comprising:

• communicate with a user equipment (UE);
• exchange, with the UE, configuration information, wherein the configuration information is useable to:
• compare a bandwidth of a bandwidth part indicated in the configuration information divided by an integer greater than 1, and a minimum unit bandwidth based on a minimum channel bandwidth, per subcarrier spacing (SCS);
• determine, based on the configuration information, a listen before talk (LBT) unit bandwidth, wherein the LBT unit bandwidth is the larger of:
• the bandwidth of the bandwidth part indicated in the configuration information divided by the integer greater than 1, and
• the minimum unit bandwidth based on the minimum channel bandwidth, per subcarrier spacing (SCS);
• and
• determine whether a first part of a first channel has a bandwidth within a single unit of the LBT unit bandwidth;
• transmit, to the UE, an uplink grant scheduling a first uplink transmission on at least the first part of the first channel;
• and
• receive, from the UE, the first uplink transmission at least in part on a first portion of the first channel, wherein the first portion of the first channel has a bandwidth equal to the LBT unit bandwidth, wherein a LBT procedure is successful on at least the first portion of the first channel, wherein the LBT procedure is performed either:
• using the LBT unit bandwidth on the first channel in response to a determination that the first part of the first channel has a bandwidth within the single unit of the LBT unit bandwidth;
• or
• using a first bandwidth of the first channel in response to a determination that the first part of the first channel has a bandwidth that is not within the single unit of the LBT unit bandwidth.