Transmission of sidelink control information (SCI) in V2X wireless communication system
Provided is a method for transmitting a signal by a terminal for vehicle-to-everything (V2X) communication in a wireless communication system and a terminal using the same method. The method comprises: mapping V2X data to a resource of a subframe including multiple symbols in a time domain; and transmitting the mapped V2X data to another terminal, wherein, in the step of mapping, resource elements included in a last symbol of the subframe are excluded.
1. A method of transmitting a signal by a user equipment (UE) in a wireless communication system, the method comprising:
transmitting sidelink control information (SCI) to another UE through a physical sidelink control channel (PSCCH); and
transmitting data that is scheduled by the SCI to the another UE through a physical sidelink shared channel (PSSCH),
wherein the SCI comprises 1-bit information that indicates whether a transmission format of the data comprises both transport block size (TBS) scaling and rate-matching,
wherein the 1-bit information having a first value indicates that the transmission format of the data includes both rate-matching and TBS scaling, and
wherein the 1-bit information having a second value indicates that the transmission format of the data includes no rate-matching and no TBS scaling.
2. The method of claim 1 , wherein transmitting the data that is scheduled by the SCI comprises:
in a state in which the 1-bit information indicates that the transmission format of the data comprises both the TBS scaling and the rate-matching:
transmitting the data using both the TBS scaling and the rate-matching.
3. The method of claim 1 , wherein transmitting the SCI comprises transmitting the SCI using SCI format 1 that is used for scheduling the PSSCH.
4. The method of claim 1 , wherein the SCI further indicates whether the transmission format of the data comprises puncturing instead of rate-matching.
5. The method of claim 1 , wherein transmitting the data that is scheduled by the SCI is performed through vehicle-to-everything (V2X) communications.
6. A user equipment (UE) configured to transmit a signal in a wireless communication system, the UE comprising:
a radio-frequency (RF) module;
at least one processor; and
at least one computer memory operably connectable to the at least one processor and storing instructions that, when executed, cause the at least one processor to perform operations comprising:
transmitting, via the RF module, sidelink control information (SCI) to another UE through a physical sidelink control channel (PSCCH); and
transmitting, via the RF module, data that is scheduled by the SCI to the another UE through a physical sidelink shared channel (PSSCH),
wherein the SCI comprises 1-bit information that indicates whether a transmission format of the data comprises both transport block size (TBS) scaling and rate-matching,
wherein the 1-bit information having a first value indicates that the transmission format of the data includes both rate-matching and TBS scaling, and
wherein the 1-bit information having a second value indicates that the transmission format of the data includes no rate-matching and no TBS scaling.
7. The UE of claim 6 , wherein transmitting the data that is scheduled by the SCI comprises:
in a state in which the 1-bit information indicates that the transmission format of the data comprises both the TBS scaling and the rate-matching:
transmitting the data using both the TBS scaling and the rate-matching.
8. The UE of claim 6 , wherein transmitting the SCI comprises transmitting the SCI using SCI format 1 that is used for scheduling the PSSCH.
9. The UE of claim 6 , wherein the SCI further indicates whether the transmission format of the data comprises puncturing instead of rate-matching.
10. The UE of claim 6 , wherein transmitting the data that is scheduled by the SCI is performed through vehicle-to-everything (V2X) communications.