Sidelink transmission resources for inter-UE coordination feedback

A non-transitory computer-readable storage medium that stores instructions for execution by one or more processors of a user equipment (UE), the instructions to configure the UE for sidelink operation in a Fifth Generation New Radio (5G NR) network, and to cause the UE to perform operations comprising:

• decoding a second stage sidelink control information (SCI) format received from a second UE, the second stage SCI including a request from the second UE for inter-UE coordination information;
• detecting a half-duplex conflict associated with a slot in a set of resources;
• and
• encoding conflict information about the half-duplex conflict for transmission to the second UE as the inter-UE coordination information requested by the second UE, the transmission being via a physical sidelink feedback channel (PSFCH) using a pool of resources of the PSFCH, the pool of resources dedicated to inter-UE coordination feedback, the pool of resources including a physical resource block (PRB) bitmap over PSFCH symbols, and the PRB bitmap being pre-configured for the PSFCH.

A non-transitory computer-readable storage medium that stores instructions for execution by one or more processors of a user equipment (UE), the instructions to configure the UE for sidelink operation in a Fifth Generation New Radio (5G NR) network, and to cause the UE to perform operations comprising:

• decoding a first sidelink transmission received from a second UE, the first sidelink transmission including a first resource reservation for a subsequent sidelink transmission by the second UE;
• decoding a second sidelink transmission received from a third UE, the second sidelink transmission including a second resource reservation for a subsequent sidelink transmission by the third UE;
• detecting a co-channel collision based on the first resource reservation and the second resource reservation being in a same sidelink slot;
• and
• encoding a feedback message for transmission to the second UE and the third UE, the feedback message indicating the co-channel collision, the encoding being for transmission via a physical sidelink feedback channel (PSFCH) using a pool of resources of the PSFCH, the pool of resources dedicated to inter-UE coordination feedback, the pool of resources includes a physical resource block (PRB) bitmap over PSFCH symbols, and the PRB bitmap being pre-configured for the PSFCH.