V2X operation method performed by terminal in wireless communication system and terminal using same
The present invention provides a vehicle-to-X (V2X) operation method performed by a terminal in a wireless communication system, the method comprising the steps of: receiving, from a base station, information indicating at least one candidate resource occupied by a different terminal in relation to periodically-configured transmission resources, wherein the at least one candidate resource occupied by the different terminal is included in the transmission resources; and transmitting a V2X message generated by a terminal through the transmission resources on the basis of the information, wherein the terminal transmits the V2X message through a candidate resource which is not occupied by a different terminal among multiple candidate resources included in the transmission resources.
1. A method for transmitting a vehicle-to-X (V2X) message in a wireless communication system, the method performed by a user equipment (UE) and comprising:
receiving, from a base station (BS), information informing the UE of at least one or more candidate resources which are occupied by at least one different UE,
wherein semi-persistent scheduling (SPS) resources are configured to the UE, and
wherein the at least one or more candidate resources are located on the SPS resources; and
transmitting the V2X message, which is generated by the UE, on the SPS resources based on the information,
wherein the at least one different UE is a UE performing V2X operation,
wherein a configuring period of the SPS resources is shorter than a generation period of the V2X message,
wherein the UE is a pedestrian UE possessed by a pedestrian,
wherein the pedestrian UE is a UE not having a receiving chain for a V2X carrier, and
wherein, when the UE does not support sensing the at least one or more candidate resources occupied by the at least one different UE and the information informs the UE of the one or more candidate resources, the UE randomly selects one of the SPS resources and transmits the V2X message on the selected SPS resource.
2. The method of claim 1 , wherein, if the UE transmits the V2X message, the UE does not transmit a newly generated V2X message during a predetermined time period.
3. A user equipment (UE) comprising:
a transceiver that transmits and receives a radio signal; and
a processor operatively coupled to the transceiver, the processor configured to:
receive, from a base station (BS), information informing the processor of at least one or more candidate resources which is occupied by at least one different UE,
wherein semi-persistent scheduling (SPS) resources are configured to the UE, and
wherein the at least one or more candidate resource is located on the SPS resources; and
transmit a vehicle-to-X (V2X) message, which is generated by the UE, on the SPS resources based on the information,
wherein the at least one different UE is a UE performing V2X operation,
wherein a configuring period of the SPS resources is shorter than a generation period of the V2X message,
wherein the UE is a pedestrian UE possessed by a pedestrian,
wherein the pedestrian UE is a UE not having a receiving chain for a V2X carrier, and
wherein, when the UE does not support sensing the at least one or more candidate resources occupied by the at least one different UE and the information informs the UE of the at least one or more candidate resources, the UE randomly selects one of the SPS resources and transmits the V2X message on the selected SPS resource.