Method for transmitting signals in V2X communication system and apparatus therefor
A method for processing signals by a user equipment (UE) in a Wireless communication system is disclosed. The method includes steps of transmitting, to a network, a request message for configuring a time resource in which a transmission of a message via a sidelink is prioritized over a transmission of an uplink message and a reception of a downlink message; receiving, from the network, a configuration message as a response of the request message; and transmitting the V2X message in the time resource via the sidelink.
1. A method for processing signals by a user equipment (UE) in a wireless communication system, the method comprising:
receiving a Semi-persistent scheduling (SPS) configuration for a transmission of an uplink message from a network,
wherein the SPS configuration includes information on a SPS period;
transmitting, to the network, a request message for configuring a sidelink gap in which a transmission of a sidelink message is prioritized over a transmission of the uplink message and a reception of a downlink message;
receiving, from the network, a configuration message indicating an activation of the SPS configuration, as a response of the request message; and
transmitting the sidelink message in the sidelink gap,
wherein the sidelink gap is defined from a specific time before the SPS period to the specific time after the SPS period, and the specific time is configured by the network.
2. The method of claim 1 , wherein the configuration message includes information on an allowed type of the sidelink message.
3. The method of claim 1 , wherein the configuration message includes information on an allowed priority of the sidelink message.
4. The method of claim 3 wherein transmitting the sidelink message comprises transmitting the sidelink message based on that a priority of the sidelink message is equal to or higher than the allowed priority in the time resource.
5. The method of claim 1 , wherein the request message includes information on at least one of a type of the sidelink message or a priority of the sidelink message.
6. A user equipment (UE) in a wireless communication system, the UE comprising:
a radio frequency (RF) unit; and
a processor connected with the RF unit and configured to:
receive a Semi-persistent scheduling (SPS) configuration for a transmission of an uplink message from a network,
wherein the SPS configuration includes information on a SPS period, transmit, to the network, a request message for configuring a sidelink gap in which a transmission of a sidelink message is prioritized over the transmission of the uplink message and a reception of a downlink message,
receive, from the network, a configuration message indicating an activation of the SPS configuration and including information on allowed types of the sidelink message, as a response of the request message, and
transmit the sidelink message in the sidelink gap,
wherein the sidelink gap is defined from a specific time before the SPS period to the specific time after the SPS period, and the specific time is configured by the network.
7. The UE of claim 6 , wherein the configuration message includes information on an allowed type of the sidelink message.
8. The UE of claim 6 , wherein the configuration message includes information on an allowed priority of the sidelink message.
9. The UE of claim 8 , wherein the processor is configured to transmit the sidelink message based on that a priority of the sidelink message is equal to or higher than the allowed priority.
10. The UE of claim 6 , wherein the request message includes information on at least one of a type of the sidelink message or a priority of the sidelink message.