# US 2023/0057331 A1 · One-shot transmission for v2x messaging > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2023/0057331 A1 - Document ID: US20230057331A1 - Status: Published application - Kind: A1 - Application number: 17/819,816 - Filed: 2022-08-15 - Published: 2023-02-23 - Earliest claimed: 2021-08-17 - Assignees: Ford Global Technologies, LLC; University of Central Florida Research Foundation, Inc. - Applicants: Ford Global Technologies, LLC; University of Central Florida Research Foundation, Inc. - Inventors: Jayanthi RAO; Ivan VUKOVIC; Yaser Pourmohammadi FALLAH; MD Saifuddin; Mahdi ZAMAN - Web page: https://patentgrep.com/patent/US20230057331A1 ## CPC - H04W 4/46: for vehicle-to-vehicle communication [V2V] - H04W 72/11: Semi-persistent scheduling - H04W 72/12: Wireless traffic scheduling - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A sequence of connected messages is transmitted using Semi-Persistent Scheduling (SPS) of a predefined period. A random value for a 1-shot duration timer is set, the random value being chosen as being between a minimum and a maximum multiple of the predefined period. Responsive to expiration of the 1-shot duration timer, 1-shot resources are allocated for a 1-shot transmission, independent of SPS-allocated resources of the SPS, and a next packet of the sequence of connected messages is transmitted as a 1-shot message using the 1-shot resources instead of using the SPS-allocated resources of the SPS. ## Claims ### Claim 1 A system for performing duration-based 1-shot messaging, comprising: a transceiver; and a controller configured to transmit a sequence of connected messages using Semi-Persistent Scheduling (SPS) of a predefined period, set a random value for a 1-shot duration timer, the random value being chosen as being between a minimum and a maximum multiple of the predefined period, and responsive to expiration of the 1-shot duration timer, allocate 1-shot resources for a 1-shot transmission, independent of SPS-allocated resources of the SPS, and transmit a next packet of the sequence of connected messages as a 1-shot message using the 1-shot resources instead of using the SPS-allocated resources of the SPS. ### Claim 2 (depends on 1) The system of claim 1, wherein the transceiver and the controller are embedded within a Vehicle-to-everything (V2X)-enabled vehicle in communication with other V2X-vehicles. ### Claim 3 (depends on 1) The system of claim 1, wherein the transceiver and the controller are embedded within a roadside unit in communication with V2X-enabled vehicles. ### Claim 4 (depends on 1) The system of claim 1, wherein the sequence of connected messages are formed in accordance with society of automotive engineers (SAE) standard document J2735. ### Claim 5 (depends on 1) The system of claim 1, wherein the minimum and the maximum multiple of the predefined period are set as integer multiples of the predefined period. ### Claim 6 (depends on 1) The system of claim 1, wherein the maximum multiple of the predefined period is set as a maximum time interval for a V2X application to tolerate for updates from other vehicles. ### Claim 7 (depends on 1) The system of claim 1, wherein the predefined period is on the order of 100 ms, the minimum is twice the predefined period, and the maximum is six times the predefined period. ### Claim 8 A method for performing duration-based 1-shot messaging, comprising transmitting a sequence of connected messages using Semi-Persistent Scheduling (SPS) of a predefined period; setting a random value for a 1-shot duration timer, the random value being chosen as being between a minimum and a maximum multiple of the predefined period; and responsive to expiration of the 1-shot duration timer, allocating 1-shot resources for a 1-shot transmission, independent of SPS-allocated resources of the SPS, and transmitting a next packet of the sequence of connected messages as a 1-shot message using the 1-shot resources instead of using the SPS-allocated resources of the SPS. ### Claim 9 (depends on 8) The method of claim 8, wherein the sequence of connected messages are formed in accordance with society of automotive engineers (SAE) standard document J2735. ### Claim 10 (depends on 8) The method of claim 8, wherein the minimum and the maximum multiple of the predefined period are set as integer multiples of the predefined period. ### Claim 11 (depends on 8) The method of claim 8, wherein the maximum multiple of the predefined period is set as a maximum time interval for a V2X application to tolerate for updates from other vehicles. ### Claim 12 (depends on 8) The method of claim 8, wherein the predefined period is on the order of 100 ms, the minimum is twice the predefined period, and the maximum is six times the predefined period. ### Claim 13 A non-transitory computer-readable medium comprises instructions for performing duration-based 1-shot messaging that, when executed by a controller in communication with a V2X transceiver, cause the controller to perform operations including to: transmit a sequence of connected messages using Semi-Persistent Scheduling (SPS) of a predefined period; set a random value for a 1-shot duration timer, the random value being chosen as being between a minimum and a maximum multiple of the predefined period; and responsive to expiration of the 1-shot duration timer, allocate 1-shot resources for a 1-shot transmission, independent of SPS-allocated resources of the SPS, and transmit a next packet of the sequence of connected messages as a 1-shot message using the 1-shot resources instead of using the SPS-allocated resources of the SPS. ### Claim 14 (depends on 13) The medium of claim 13, wherein the transceiver and the controller are embedded within a Vehicle-to-everything (V2X)-enabled vehicle in communication with other V2X-vehicles. ### Claim 15 (depends on 13) The medium of claim 13, wherein the transceiver and the controller are embedded within a roadside unit in communication with V2X-enabled vehicles. ### Claim 16 (depends on 13) The medium of claim 13, wherein the sequence of connected messages are formed in accordance with society of automotive engineers (SAE) standard document J2735. ### Claim 17 (depends on 13) The medium of claim 13, wherein the minimum and the maximum multiple of the predefined period are set as integer multiples of the predefined period. ### Claim 18 (depends on 13) The medium of claim 13, wherein the maximum multiple of the predefined period is set as a maximum time interval for a V2X application to tolerate for updates from other vehicles. ### Claim 19 (depends on 13) The medium of claim 13, wherein the predefined period is on the order of 100 ms, the minimum is twice the predefined period, and the maximum is six times the predefined period.