Pssch and psfch for wideband operation

An apparatus for wireless communication at a user equipment (UE), comprising:

• a memory;
• and
• at least one processor coupled to the memory and, based at least in part on information stored in the memory, the at least one processor is configured to:
• receive a sidelink (SL) transmission in a physical sidelink shared channel (PSSCH) from a transmit (Tx) UE, the PSSCH including a plurality of listen-before-talk (LBT) bandwidths associated with at least one resource block (RB) set;
• and
• transmit a physical sidelink feedback channel (PSFCH) including a hybrid automatic repeat request (HARQ) feedback of the PSSCH, the PSFCH being mapped to a starting sub-channel of each RB set of the plurality of LBT bandwidths of the PSSCH.

An apparatus for wireless communication at a network node, comprising:

• a memory;
• and
• at least one processor coupled to the memory and, based at least in part on information stored in the memory, the at least one processor is configured to:
• receive an indication of at least one capability of a user equipment (UE) or a request from the UE;
• and
• transmit at least one parameter for the UE based at least in part on receiving the indication of the at least one capability of the UE or the request from the UE, wherein the at least one parameter indicates to the UE to transmit sidelink (SL) transmission in at least one resource block (RB) set associated with a plurality of LBT bandwidths other than a first LBT bandwidth of physical sidelink shared channel (PSSCH) based on a first measurement of the first LBT bandwidth of the PSSCH being greater than a threshold value.