Vehicle-to-everything ultra-reliable/low-latency communications design

A method for wireless communication, comprising:

• receiving a request-to-send (RTS) message from a wireless device during a shortened transmission time interval (TTI) reserved for use for priority communications to or from a vehicle having a first traffic priority level, the shortened TTI having a duration that is less than that of other TTIs used in other communications to or from the vehicle having a second traffic priority level which is less than the first traffic priority level, the RTS message indicating an identifier and a configuration for the priority communications during the shortened TTI;
• identifying a sequence based at least in part on the RTS message;
• transmitting a clear-to-send (CTS) message indicating the sequence and using a set of resource blocks (RBs) having a same number of RBs as is used for the RTS message, wherein the sequence associates the CTS message with the RTS message;
• and
• performing the priority communications with the wireless device from which the RTS message was received.

An apparatus for wireless communication, comprising:

• a processor;
• memory in electronic communication with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• identify a shortened transmission time interval (TTI) to be used for priority communications to or from a vehicle having a first traffic priority level, the shortened TTI having a duration that is less than that of other TTIs used in other communications to or from the vehicle having a second traffic priority level which is less than the first traffic priority level;
• transmit a request-to-send (RTS) message during the shortened TTI, the RTS message indicating an identifier and a configuration for the priority communications during the shortened TTI;
• receive a clear-to-send (CTS) message from one or more wireless devices participating in the priority communications, the CTS message indicating a sequence associating the CTS message with the RTS message;
• and
• perform the priority communications with the wireless devices from which the CTS messages were received.

An apparatus for wireless communication, comprising:

• a processor;
• memory in electronic communication with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• receive a request-to-send (RTS) message from a wireless device during a shortened transmission time interval (TTI) reserved for use for priority communications to or from a vehicle having a first traffic priority level, the shortened TTI having a duration that is less than that of other TTIs used in other communications to or from the vehicle having a second traffic priority level which is less than the first traffic priority level, the RTS message indicating an identifier and a configuration for the priority communications during the shortened TTI;
• identify a sequence based at least in part on the RTS message;
• transmit a clear-to-send (CTS) message indicating the sequence and using a set of resource blocks (RBs) having a same number of RBs as is used for the RTS message, wherein the sequence associates the CTS message with the RTS message;
• and
• perform the priority communications with the wireless device from which the RTS message was received.