Method and apparatus for performing BWP-based sidelink communication in NR V2X
Provided are a method for performing wireless communication by a first device and an apparatus supporting same. The method may comprise the steps of: transmitting, to a second device, information related to a first resource on a sidelink (SL) bandwidth part (BWP); and performing SL reception from the second device on a second resource on the SL BWP. The second resource may not overlap with the first resource.
1. A method performed by a first device in a wireless communication system, the method comprising:
obtaining configuration information related to a universal mobile telecommunications system (UMTS) user (Uu) bandwidth part (BWP);
obtaining configuration information related to a sidelink (SL) BWP;
transmitting, to a second device, information related to a first resource on the SL BWP;
performing, from the second device, a SL reception based on a second resource on the SL BWP; and
performing a first BWP switching from the SL BWP to the Uu BWP;
wherein the second resource does not overlap with the first resource, and
wherein the first resource includes a third resource overlapping in a time domain with a time period in which the first device communicates with a base station on the Uu BWP.
2. The method of claim 1 ,
wherein the SL BWP is a BWP related to SL communication configured for the first device, and
wherein the Uu BWP is at least one of a BWP related to uplink (UL) communication configured for the first device or a BWP related to downlink (DL) communication configured for the first device.
3. The method of claim 1 ,
wherein the first resource includes a fourth resource overlapping in the time domain with a time period required for the first BWP switching.
4. The method of claim 1 , further comprising:
performing a second BWP switching from the Uu BWP to the SL BWP.
5. The method of claim 4 ,
wherein the first resource includes a fifth resource overlapping in the time domain with a time period required for the second BWP switching.
6. The method of claim 1 , wherein the second resource is selected by the second device based on the information related to the first resource.
7. The method of claim 1 , further comprising:
selecting a sixth resource on the SL BWP; and
performing, to the second device, a SL transmission based on the sixth resource on the SL BWP,
wherein the sixth resource does not overlap with the first resource.
8. The method of claim 7 ,
wherein the first resource includes a fourth resource overlapping in the time domain with a time period required for the first BWP switching.
9. A first device adapted to perform wireless communication, the first device comprising:
at least one transceiver;
at least one processor; and
at least one memory connected to the at least one processor and storing instructions that, based on being executed, cause the first device to perform operations comprising:
obtaining configuration information related to a universal mobile telecommunications system (UMTS) user (Uu) bandwidth part (BWP);
obtaining configuration information related to a sidelink (SL) BWP;
transmitting, to a second device, information related to a first resource on the SL BWP;
performing, from the second device, a SL reception based on a second resource on the SL BWP; and
performing a BWP switching from the SL BWP to the Uu BWP;
wherein the second resource does not overlap with the first resource, and
wherein the first resource includes a third resource overlapping in a time domain with a time period in which the first device communicates with a base station on the Uu BWP.
10. The first device of claim 9 ,
wherein the first resource includes a fourth resource overlapping in the time domain with a time period required for the BWP switching.
11. The first device of claim 9 , wherein the SL BWP is a BWP related to SL communication configured for the first device, and
wherein the Uu BWP is at least one of a BWP related to uplink (UL) communication configured for the first device or a BWP related to downlink (DL) communication configured for the first device.
12. A processing device adapted to control a first device, the processing device comprising:
at least one processor; and
at least one memory connected to the at least one processor and storing instructions that, based on being executed, cause the first device to perform operations comprising:
obtaining configuration information related to a universal mobile telecommunications system (UMTS) user (Uu) bandwidth part (BWP);
obtaining configuration information related to a sidelink (SL) BWP;
transmitting, to a second device, information related to a first resource on the SL BWP;
performing, from the second device, a SL reception based on a second resource on the SL BWP; and
performing a BWP switching from the SL BWP to the Uu BWP;
wherein the second resource does not overlap with the first resource, and
wherein the first resource includes a third resource overlapping in a time domain with a time period in which the first device communicates with a base station on the Uu BWP.
13. The processing device of claim 12 ,
wherein the first resource includes a fourth resource overlapping in the time domain with a time period required for the BWP switching.