US 11,071,144 B2
Vehicle-to-everything ultra-reliable/low- latency communications design
Sudhir Kumar Baghel, Hillsborough, NJ (US); Junyi Li, Chester, NJ (US); Kapil Gulati, Dover, DE (US); and Tien Viet Nguyen, Bridgewater, NJ (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM incorporated, San Diego, CA (US)
Filed on Feb. 4, 2019, as Appl. No. 16/267,152.
Claims priority of provisional application 62/627,896, filed on Feb. 8, 2018.
Prior Publication US 2019/0246431 A1, Aug. 8, 2019
Int. Cl. H04W 72/04 (2009.01); H04W 74/08 (2009.01); H04W 72/12 (2009.01); H04W 52/28 (2009.01); H04W 4/40 (2018.01)
CPC H04W 74/0816 (2013.01) [H04W 52/281 (2013.01); H04W 72/1247 (2013.01); H04W 4/40 (2018.02); H04W 72/0446 (2013.01)] 27 Claims
OG exemplary drawing
 
1. A method for wireless communication, comprising:
identifying 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;
transmitting 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, wherein the configuration for the priority communications comprises an indication of whether the RTS is a control RTS or a control-less RTS;
receiving 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
performing the priority communications with the wireless devices from which the CTS messages were received.
 
9. 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, wherein the configuration for the priority communications comprises an indication of whether the RTS is a control RTS or a control-less RTS;
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.