Listen before talk based resource modification and reduced channel occupancy time sharing signaling for sidelink communication in unlicensed spectrum

A user equipment (UE) for wireless communication, comprising:

• one or more memories;
• and
• one or more processors coupled to the one or more memories, the one or more processors configured to:
• select, within a resource selection window corresponding to a projected used channel occupancy time (COT) region, a plurality of resources in which to transmit over an unlicensed sidelink channel, wherein the plurality of resources includes a first resource associated with a first subchannel and a second resource associated with a second subchannel non-contiguous with the first subchannel;
• attempt a listen before talk (LBT) procedure to initiate a COT in which to transmit over the unlicensed sidelink channel;
• move, based at least in part on the LBT procedure succeeding, the second resource to a time resource, contiguous with the first resource and associated with the first subchannel, such that the first resource and the second resource are contiguous in a time domain, wherein the second resource is moved at a medium access control layer based at least in part on a trigger at a physical layer indicating that the LBT procedure succeeded;
• and
• transmit, over the unlicensed sidelink channel and based at least in part on moving the second resource, using the plurality of resources.

A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:

• one or more instructions that, when executed by one or more processors of a user equipment (UE), cause the UE to:
• select, within a resource selection window corresponding to a projected used channel occupancy time (COT) region, a plurality of resources in which to transmit over an unlicensed sidelink channel, wherein the plurality of resources includes a first resource associated with a first subchannel and a second resource associated with a second subchannel non-contiguous with the first subchannel;
• attempt a listen before talk (LBT) procedure to initiate a COT in which to transmit over the unlicensed sidelink channel;
• move, based at least in part on the LBT procedure succeeding, the second resource to a time resource, contiguous with the first resource and associated with the first subchannel, such that the first resource and the second resource are contiguous in a time domain, wherein the second resource is moved at a medium access control layer based at least in part on a trigger at a physical layer indicating that the LBT procedure succeeded;
• and
• transmit, over the unlicensed sidelink channel and based at least in part on moving the second resource, using the plurality of resources.

An apparatus for wireless communication, comprising:

• means for selecting, within a resource selection window corresponding to a projected used channel occupancy time (COT) region, a plurality of resources in which to transmit over an unlicensed sidelink channel, wherein the plurality of resources includes a first resource associated with a first subchannel and a second resource associated with a second subchannel non-contiguous with the first subchannel;
• means for attempting a listen before talk (LBT) procedure to initiate a COT in which to transmit over the unlicensed sidelink channel;
• means for moving, based at least in part on the LBT procedure succeeding, the second resource to a time resource, contiguous with the first resource and associated with the first subchannel, such that the first resource and the second resource are contiguous in a time domain, wherein the second resource is moved at a medium access control layer based at least in part on a trigger at a physical layer indicating that the LBT procedure succeeded;
• and
• means for transmitting, over the unlicensed sidelink channel and based at least in part on moving the second resource, using the plurality of resources that are adjusted to be contiguous in at least the time domain.