Method and apparatus for performing BWP-based communication in NR V2X

1. A method for performing wireless communication by a first apparatus, the method comprising:

receiving a configuration related to a Uu bandwidth part (BWP) from a base station; and

receiving a configuration related to a sidelink (SL) BWP from the base station,

wherein, based on a numerology of the Uu BWP and a numerology of the SL BWP being different, performing SL communication on the SL BWP is not allowed for the first apparatus, and

wherein, based on the numerology of the Uu BWP and the numerology of the SL BWP being same, performing the SL communication on the SL BWP is allowed for the first apparatus.

2. The method of claim 1 , wherein the numerology of the Uu BWP and the numerology of the SL BWP include at least one of subcarrier spacing and cyclic prefix (CP).

3. The method of claim 2 , wherein the subcarrier spacing is one of 15 kHz, 30 kHz, 60 kHz, 120 kHz, or 240 kHz.

4. The method of claim 2 , wherein the cyclic prefix (CP) is one of a normal cyclic prefix (CP) and an extended cyclic prefix (CP).

5. The method of claim 1 , wherein, based on the numerology of the Uu BWP and the numerology of the SL BWP being different, the SL BWP is deactivated.

6. The method of claim 5 , wherein the Uu BWP is an active BWP.

7. The method of claim 6 , wherein the active BWP is an active uplink BWP or an active downlink BWP.

8. The method of claim 1 , wherein, based on the numerology of the Uu BWP and the numerology of the SL BWP being different, performing Uu BWP-based SL communication on the SL BWP is not allowed for the first apparatus.

9. The method of claim 8 , wherein the Uu BWP-based SL communication is SL communication performed by the first apparatus on the SL BWP based on Downlink Control Information (DCI) received, by the first apparatus, from the base station on the Uu BWP.

10. The method of claim 1 , wherein, based on an interruption time being required between the Uu BWP-based communication and the SL BWP-based communication, performing the SL communication on the SL BWP is not allowed for the first apparatus.

11. The method of claim 1 , wherein a configuration related to the Uu BWP includes at least one of a numerology related to the Uu BWP, a center frequency related to the Uu BWP, or a bandwidth related to the Uu BWP, and

wherein a configuration related to the SL BWP includes at least one of a numerology related to the SL BWP, a center frequency related to the SL BWP, or a bandwidth related to the SL BWP.

12. The method of claim 1 , wherein the SL BWP is a BWP related to SL communication being configured for the first apparatus, and

wherein the Uu BWP is at least one of a BWP related to an uplink communication or a BWP related to a downlink communication being configured for the first apparatus.

13. A first apparatus configured to perform wireless communication, the first apparatus 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 are configured to execute the instructions to:

receive a configuration related to a Uu bandwidth part (BWP) from a base station, and

receive a configuration related to a sidelink (SL) BWP from the base station,

wherein, based on a numerology of the Uu BWP and a numerology of the SL BWP being different, performing SL communication on the SL BWP is not allowed for the first apparatus, and

wherein, based on the numerology of the Uu BWP and the numerology of the SL BWP being same, performing the SL communication on the SL BWP is allowed for the first apparatus.