Method and device for performing sl transmission in nr v2x

A first device adapted to perform wireless communication, the first device comprising:

• one or more memories storing instructions;
• one or more transceivers;
• and
• one or more processors connected to the one or more memories and the one or more transceivers, wherein the one or more processors execute the instructions to:
• map a first sidelink control information (SCI) to a resource for a physical sidelink control channel (PSCCH);
• map, based on a cyclic redundancy check (CRC) on the PSCCH, a phase tracking-reference signal (PT-RS) to a resource for a physical sidelink shared channel (PSSCH);
• map a second SCI to a resource not used for transmission of the PT-RS among the resource for the PSSCH;
• and
• transmit, to a second device, the first SCI, the second SCI, and the PT-RS.

A processing device adapted to control a first device performing wireless communication, the processing device comprising:

• one or more processors;
• and
• one or more memories operably connected to the one or more processors and storing instructions, wherein the one or more processors execute the instructions to:
• map a first sidelink control information (SCI) to a resource for a physical sidelink control channel (PSCCH);
• map, based on a cyclic redundancy check (CRC) on the PSCCH, a phase tracking-reference signal (PT-RS) to a resource for a physical sidelink shared channel (PSSCH);
• map a second SCI to a resource not used for transmission of the PT-RS among the resource for the PSSCH;
• and
• transmit, to a second device, the first SCI, the second SCI, and the PT-RS.