Method and device for carrying out partial sensing during SL DRX operation in NR V2X

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

obtaining an inter-device discontinuous reception (DRX) configuration;

performing contiguous partial sensing (CPS) for a resource pool;

performing resource selection for a plurality of resources for a transmission of a medium access control (MAC) protocol data unit (PDU) within a duration not an active time of the inter-device DRX configuration, based on the CPS,

wherein time between the plurality of transmission resources selected based on the resource selection is less than a threshold time;

transmitting, to a second device, inter-device control information for scheduling of an inter-device physical shared channel through an inter-device physical control channel, based on the plurality of transmission resources; and

transmitting, to the second device, the MAC PDU through the inter-device physical shared channel, based on the plurality of transmission resources,

wherein a CPS window on which the CPS is performed includes a first duration included in the active time and a second duration not included in the active time, and

wherein the CPS window includes the second duration, based on a length of the first duration being shorter than a length of the CPS window.

2 . The method of claim 1 , wherein a triggering time point of the resource selection is included within the active time.

3 . The method of claim 2 , wherein the triggering time point is a time point after a starting time point of the active time by a length of a CPS window.

4 . The method of claim 1 , wherein CPS performed on the second duration is sensing based on inter-device physical control channel decoding.

5 . The method of claim 4 , wherein an inter-device physical shared channel decoding operation is not performed on the second duration.

6 . The method of claim 1 , wherein a periodic transmission is allowed within the resource pool.

7 . The method of claim 6 , wherein the resource selection includes:

triggering the resource selection within the active time; and

shifting a selection window within which the resource selection is performed to a first time point, based on the resource selection being triggered within the active time.

8 . The method of claim 7 , wherein the first time point is after the triggering time point by a length of the CPS window.

9 . The method of claim 1 , wherein an inter-device DRX cycle in the inter-device DRX configuration and a transmission period related to the resource pool are integer multiples of each other.

10 . A first device for performing 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:

obtain an inter-device discontinuous reception (DRX) configuration;

perform contiguous partial sensing (CPS) for a resource pool;

perform resource selection for a plurality of resources for a transmission of a medium access control (MAC) protocol data unit (PDU) within a duration not an active time of the inter-device DRX configuration, based on the CPS,

wherein time between the plurality of transmission resources selected based on the resource selection is less than a threshold time;

transmit, to a second device, inter-device control information for scheduling of an inter-device physical shared channel through an inter-device physical control channel, based on the plurality of transmission resources; and

transmit, to the second device, the MAC PDU through the inter-device physical shared channel, based on the plurality of transmission resources,

wherein a CPS window on which the CPS is performed includes a first duration included in the active time and a second duration not included in the active time, and

wherein the CPS window includes the second duration, based on a length of the first duration being shorter than a length of the CPS window.

11 . A device adapted to control a first user equipment (UE), the device comprising:

one or more processors; and

one or more memories operably connectable to the one or more processors and storing instructions, wherein the one or more processors execute the instructions to:

obtain an inter-UE discontinuous reception (DRX) configuration;

perform contiguous partial sensing (CPS) for a resource pool;

perform resource selection for a plurality of resources for a transmission of a medium access control (MAC) protocol data unit (PDU) within a duration not an active time of the inter-UE DRX configuration, based on the CPS,

wherein time between the plurality of transmission resources selected based on the resource selection is less than a threshold time;

transmit, to a second UE, inter-UE control information for scheduling of an inter-UE physical shared channel through an inter-UE physical control channel, based on the plurality of transmission resources; and

transmit, to the second UE, the MAC PDU through the inter-UE physical shared channel, based on the plurality of transmission resources,

wherein a CPS window on which the CPS is performed includes a first duration included in the active time and a second duration not included in the active time, and

wherein the CPS window includes the second duration, based on a length of the first duration being shorter than a length of the CPS window.