Techniques and apparatuses for autonomous resource selection for vehicle-to-everything (v2x) transmissions

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

• memory;
• and
• one or more processors operatively coupled to the memory, the memory and the one or more processors configured to:
• determine a limit on a number of resource blocks (RBs) permitted to be used for a vehicle-to-everything (V2X) transmission by the UE, wherein the limit is determined based at least in part on a congestion level of a sidelink channel via which the V2X transmission is to be transmitted;
• determine, based at least in part on the limit, one or more parameters for the V2X transmission, wherein the one or more parameters include at least one of a modulation and coding scheme (MCS) for the V2X transmission, a number of transport blocks (TBs) for the V2X transmission, a number of RBs per TB for the V2X transmission, or a retransmission configuration for the V2X transmission;
• and
• transmit the V2X transmission based at least in part on the one or more parameters.

An apparatus for wireless communication, comprising:

• means for determining a limit on a number of resource blocks (RBs) permitted to be used for a vehicle-to-everything (V2X) transmission by the apparatus, wherein the limit is determined based at least in part on a congestion level of a sidelink channel via which the V2X transmission is to be transmitted;
• means for determining, based at least in part on the limit, one or more parameters for the V2X transmission, wherein the one or more parameters include at least one of a modulation and coding scheme (MCS) for the V2X transmission, a number of transport blocks (TBs) for the V2X transmission, a number of RBs per TB for the V2X transmission, or a retransmission configuration for the V2X transmission;
• and
• means for transmitting the V2X transmission based at least in part on the one or more parameters.

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

• one or more instructions that, when executed by one or more processors of a user equipment (UE), cause the one or more processors to:
• determine a limit on a number of resource blocks (RBs) permitted to be used for a vehicle-to-everything (V2X) transmission by the UE, wherein the limit is determined based at least in part on a congestion level of a sidelink channel via which the V2X transmission is to be transmitted;
• determine, based at least in part on the limit, one or more parameters for the V2X transmission, wherein the one or more parameters include at least one of a modulation and coding scheme (MCS) for the V2X transmission, a number of transport blocks (TBs) for the V2X transmission, a number of RBs per TB for the V2X transmission, or a retransmission configuration for the V2X transmission;
• and
• transmit the V2X transmission based at least in part on the one or more parameters.