Method and device for performing DRX operation on basis of resource allocation information in NR V2X
A method by which a first device performs wireless communication comprises: acquiring a sidelink (SL) discontinuous reception (DRX) configuration; receiving, from a second device, through a physical sidelink control channel (PSCCH), second sidelink control information (SCI) and first SCI for the scheduling of a physical sidelink shared channel (PSSCH), wherein the first SCI includes information related to frequency resource assignment, time resource assignment, and resource reservation periods; receiving the second SCI from the second device through the PSSCH; determining, based on the information related to time resource assignment, a time domain of at least one first SL resource reserved by the second device within a first resource reservation period; and determining, based on the information related to time resource assignment and resource reservation periods, a time domain of at least one second SL resource reserved by the second device within a second resource reservation period.
1 . A method comprising:
receiving, by a first user equipment (UE) from a second UE, first inter-UE control information for scheduling of second inter-UE control information and an inter-UE physical shared channel through an inter-UE physical control channel;
receiving, by the first UE from the second UE, the second inter-UE control information through the inter-UE physical shared channel; and
based on the first inter-UE control information including no resource assignment information, performing, by the first UE, sleep mode operation for M slots after a first slot on which the first inter-UE control information and the second inter-UE control information are received,
wherein M is obtained by subtracting a number of slots required to complete reception related to the first inter-UE control information and the second inter-UE control information from 32.
2 . The method of claim 1 , wherein the first UE does not perform inter-UE physical control channel monitoring while performing the sleep mode operation.
3 . The method of claim 1 , further comprising:
based on the first inter-UE control information including resource assignment information, monitoring, by the first UE, third inter-UE control information on a second slot determined by the resource assignment information included in the first inter-UE control information.
4 . The method of claim 3 , wherein, based on that the first UE fails to detect the third inter-UE control information, the sleep mode operation is performed after the second slot determined by the resource assignment information included in the first inter-UE control information.
5 . The method of claim 3 , wherein the first UE fails to detect the third inter-UE control information on the second slot due to at least one of pre-emption of the second UE, re-evaluation of the second UE, or prioritization of the second UE.
6 . The method of claim 1 , wherein the second inter-UE control information includes a source identifier (ID) and a destination ID.
7 . The method of claim 6 , wherein the destination ID included in the second inter-UE control information is a same as a source ID related to the first UE, and the source ID included in the second inter-UE control information is a same as a destination ID related to the first UE.
8 . The method of claim 6 , wherein the destination ID included in the second inter-UE control information is a same as a destination ID intended by the first UE.
9 . A first user equipment (UE) 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 UE to perform operations comprising:
receiving, from a second UE, first inter-UE control information for scheduling of second inter-UE control information and an inter-UE physical shared channel through an inter-UE physical control channel;
receiving, from the second UE, the second inter-UE control information through the inter-UE physical shared channel; and
based on the first inter-UE control information including no resource assignment information, performing sleep mode operation for M slots after a first slot on which the first inter-UE control information and the second inter-UE control information are received,
wherein M is obtained by subtracting a number of slots required to complete reception related to the first inter-UE control information and the second inter-UE control information from 32.
10 . The first UE of claim 9 , wherein the first UE does not perform inter-UE physical control channel monitoring while performing the sleep mode operation.
11 . The first UE of claim 9 , wherein the operations further comprise: monitoring, based on the first inter-UE control information including resource assignment information, third inter-UE control information on a second slot determined by the resource assignment information included in the first inter-UE control information,
wherein, based on that the first UE fails to detect the third inter-UE control information, the sleep mode operation is performed after the second slot determined by the resource assignment information included in the first inter-UE control information.
12 . A 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 a first user equipment (UE) to perform operations comprising:
receiving, from a second UE, first inter-UE control information for scheduling of second inter-UE control information and an inter-UE physical shared channel through an inter-UE physical control channel;
receiving, from the second UE, the second inter-UE control information through the inter-UE physical shared channel; and
based on the first inter-UE control information including no resource assignment information, performing sleep mode operation for M slots after a first slot on which the first inter-UE control information and the second inter-UE control information are received,
wherein M is obtained by subtracting a number of slots required to complete reception related to the first inter-UE control information and the second inter-UE control information from 32.
13 . The processing device of claim 12 , wherein the first UE does not perform inter-UE physical control channel monitoring while performing the sleep mode operation.
14 . The processing device of claim 12 , wherein the operations further comprise: monitoring, based on the first inter-UE control information including resource assignment information, third inter-UE control information on a second slot determined by the resource assignment information included in the first inter-UE control information,
wherein, based on that the first UE fails to detect the third inter-UE control information, the sleep mode operation is performed after the second slot determined by the resource assignment information included in the first inter-UE control information.