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

Abstract:

Methods, systems, and devices for wireless communications are described. A UE may identify a plurality of shortened transmission time intervals (TTIs) to be used for priority communications to or from a vehicle having a first traffic priority level, the plurality of shortened TTIs each 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 UE may perform a listen-before-talk procedure in order to reserve the plurality of shortened TTIs for the priority communications. The UE may further reserving at least one instance of the plurality of shortened TTIs for the priority communication. The further reserving may include transmitting a request to reserve the at least one instance of the plurality of shortened TTIs for the priority communication or performing a request-to-send/clear-to-send exchange.