Method and device for selecting resource and transmitting PSSCH in wireless communication system

A User Equipment (UE) device in a wireless communication system, the UE device comprising:

• at least one processor;
• and
• at least one computer memory operatively coupled to the at least one processor and storing instructions which, when executed, cause the at least one processor to perform operations, the operations comprising:
• performing, by the UE, sensing in a sensing window;
• based on the sensing, selecting, by the UE, a transmission resource in a selection window;
• and
• transmitting, by the UE, a PSSCH (Physical Sidelink Shared Channel) via the transmission resource;
• wherein one or more resources are excluded from the selection window based on a counter and a reservation period,
• wherein a range for a selection of the counter depends on the reservation period, and
• wherein a first range for a reservation period less than 100 ms is configured to be larger than a second range for a reservation period equal to 100 ms.

A processor, in a wireless communication system, configured to perform operations for a user equipment (UE), the operations comprising:

• performing, by the UE, sensing in a sensing window;
• based on the sensing, selecting, by the UE, a transmission resource in a selection window;
• and
• transmitting, by the UE, a PSSCH (Physical Sidelink Shared Channel) via the transmission resource;
• wherein one or more resources are excluded from the selection window based on a counter and a reservation period,
• wherein a range for a selection of the counter depends on the reservation period, and
• wherein a first range for a reservation period less than 100 ms is configured to be larger than a second range for a reservation period equal to 100 ms.

A non-transitory computer-readable storage medium storing at least one computer program including instructions which, when executed by at least one processor, cause the at least one processor to perform operations for a user equipment (UE), the operations comprising:

• performing, by the UE, sensing in a sensing window;
• based on the sensing, selecting, by the UE, a transmission resource in a selection window;
• and
• transmitting, by the UE, a PSSCH (Physical Sidelink Shared Channel) via the transmission resource;
• wherein one or more resources are excluded from the selection window based on a counter and a reservation period,
• wherein a range for a selection of the counter depends on the reservation period, and
• wherein a first range for a reservation period less than 100 ms is configured to be larger than a second range for a reservation period equal to 100 ms.