Methods, apparatuses and systems for enhanced channel occupancy time (COT) sharing in wireless communications

A method of wireless communications, comprising:

• receiving, by a first wireless device, an indication of a listen before talk (LBT) gap for sharing a channel occupancy time (COT), the COT being acquired by a second wireless device;
• determining, by the first wireless device, whether to perform a first LBT procedure or a second LBT procedure during the LBT gap, the first LBT procedure being different from the second LBT procedure, wherein the determining is based on a distance between the first and second wireless devices;
• performing, by the first wireless device, the first LBT procedure or the second LBT procedure based on the determining;
• and
• responsive to a successful first LBT procedure or a successful second LBT procedure, transmitting, by the first wireless device, a signal to the second wireless device within the COT.

A wireless device for wireless communications, comprising:

• a processor;
• memory in electronic communication with the processor;
• instructions stored in the memory, wherein the instructions are executable by the processor to:
• receive an indication of a listen before talk (LBT) gap for sharing a channel occupancy time (COT), the COT being acquired by another wireless device;
• detect whether a slot within the COT is occupied by the another wireless device, the slot occurring prior to the LBT gap;
• responsive to detecting that the slot is occupied by the another wireless device, perform an LBT procedure during the LBT gap, wherein an energy detection (ED) threshold for detecting occupancy in the slot is different from an ED threshold associated with the LBT procedure;
• and
• responsive to a successful LBT procedure, transmit a signal to the another wireless device within the COT.

A wireless device for wireless communications, comprising:

• a processor;
• memory in electronic communication with the processor;
• instructions stored in the memory, wherein the instructions are executable by the processor to:
• receive an indication of a listen before talk (LBT) gap for sharing a channel occupancy time (COT), the COT being acquired by another wireless device;
• determine whether to perform a first LBT procedure or a second LBT procedure during the LBT gap, the first LBT procedure being different from the second LBT procedure;
• perform the first LBT procedure or the second LBT procedure based on the determination;
• and
• responsive to a successful first LBT procedure or a successful second LBT procedure, transmit a signal to the another wireless device within the COT, wherein the instructions executable by the processor to determine is based on a distance between the wireless device and the another wireless device.