Pre-collision signaling on inter-UE coordination resources

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

• one or more memories, individually or in combination, having instructions;
• and
• one or more processors, individually or in combination, coupled to the one or more memories and configured to execute the instructions to:
• decode, at the first UE, sidelink control information (SCI) transmitted by a plurality of second UEs reserving a set of resources for sidelink transmission to the first UE;
• detect, at the first UE, a potential resource collision for the plurality of second UEs at the set of resources based on decoding of the SCI;
• generate a pre-collision message that identifies the set of resources that are susceptible to the potential resource collision;
• and
• transmit the pre-collision message from the first UE to the plurality of second UEs,
• wherein the one or more processors configured to execute the instructions to transmit the pre-collision message from the first UE to the plurality of second UEs, are further configured to:
• select a resource for transmission of the pre-collision message;
• queue the pre-collision message for transmission from the first UE to the plurality of second UEs;
• and
• monitor a communication channel to determine whether another UE has transmitted a separate pre-collision message while the pre-collision message is queued for transmission.