# US 10,485,013 B2 · V2X message transmission method performed by terminal in wireless communication system, and terminal using same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,485,013 B2 - Document ID: US10485013B2 - Status: Granted - Kind: B2 - Application number: 15/737,969 - Filed: 2016-06-20 - Published: 2018-11-15 - Granted: 2019-11-19 - Earliest claimed: 2015-06-19 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Seungmin Lee; Hyukjin Chae; Youngtae Kim; Kijun Kim; Hanbyul Seo; Hanjun Park - Web page: https://patentgrep.com/patent/US10485013B2 ## CPC - H04L 27/2602: {Signal structure} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04W 4/40: for vehicles, e.g. vehicle-to-pedestrians [V2P] - H04W 4/44: for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H] - H04W 4/90: Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS] - H04W 72/02: Selection of wireless resources by user or terminal - H04W 72/20: Control channels or signalling for resource management - H04W 72/56: based on priority criteria - H04W 72/569: {of the traffic information} - H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH} - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 27/26025: {Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking (allocating sub-channels of the transmission path H04L5/003)} - H04L 27/2636: {with FFT or DFT modulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] transmitter or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]} - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract The present invention relates to a Vehicle-to-X (V2X) communication method performed by a terminal in a wireless communication system. The method comprises: determining priority of information related to the V2X communication; selecting a transmission time interval (TTI) on the basis of the priority; and transmitting the information on the basis of the selected TTI. If the information related to the V2X communication is information having high priority, a first TTI is selected, and if the information related to the V2X communication is information having relatively lower priority than the information having high priority, a second TTI is selected. ## Claims ### Claim 1 A method for transmitting information related to a vehicle-to-X (V2X) communication in a wireless communication system, the method performed by a user equipment (UE) and comprising: determining a priority of the information related to the V2X communication; selecting a transmission time interval (TTI) based on the priority; and transmitting the information related to the V2X communication based on the selected TTI, wherein, when the information related to the V2X communication is information having a high priority, a first TTI is selected, wherein, when the information related to the V2X communication is information having a lower priority than the information having the high priority, a second TTI is selected, wherein a resource element of the first TTI is K times longer than a resource element of the second TTI in terms of a frequency, and wherein the resource element of the first TTI is 1/K times shorter than the resource element of the second TTI in terms of a time, where K is a positive integer other than 0. ### Claim 2 (depends on 1) The method of claim 1, wherein data is repeatedly allocated to the resource element of the first TTI. ### Claim 3 (depends on 1) The method of claim 1, wherein zero or null is allocated to a specific subcarrier in a frequency domain of the first TTI. ### Claim 4 (depends on 3) The method of claim 3, wherein the specific subcarrier to which the zero or null is allocated is positioned alternatively with a subcarrier to which information is allocated in the frequency domain. ### Claim 5 (depends on 3) The method of claim 3, wherein the resource element of the first TTI is longer than the resource element of the second TTI in terms of the frequency. ### Claim 6 (depends on 5) The method of claim 5, wherein the resource element of the first TTI is shorter than the resource element of the second TTI in terms of the time. ### Claim 7 (depends on 3) The method of claim 3, wherein a guard area is positioned between the first TTI and the second TTI. ### Claim 8 (depends on 7) The method of claim 7, wherein the guard area is positioned on the frequency domain between the first TTI and the second TTI. ### Claim 9 (depends on 1) The method of claim 1, wherein the information having the high priority is control information, and the information having the low priority is data information. ### Claim 10 (depends on 1) The method of claim 1, wherein information regarding a configuration of the at least one TTI is preconfigured in the UE. ### Claim 11 A user equipment (UE) comprising: a transceiver configured to transmit and receive a radio signal; and a processor operated in association with the transceiver, wherein the processor is configured to: determine a priority of information related to a vehicle-to-X (V2X) communication, select a transmission time interval (TTI) based on the priority, and control the transceiver to transmit the information related to the V2X communication based on the selected TTI, wherein, when the information related to the V2X communication is information having a high priority, a first TTI is selected, wherein, when the information related to the V2X communication is information having a lower priority than the information having the high priority, a second TTI is selected, wherein a resource element of the first TTI is K times longer than a resource element of the second TTI in terms of a frequency, and wherein the resource element of the first TTI is 1/K times shorter than the resource element of the second TTI in terms of a time, where K is a positive integer other than 0.