METHOD AND APPARATUS FOR CARRYING OUT WIRELESS COMMUNICATION RELATED TO SL CSI REPORT IN NR V2X

    公开(公告)号:US20240291534A1

    公开(公告)日:2024-08-29

    申请号:US18292840

    申请日:2022-07-21

    CPC classification number: H04B7/0626 H04W24/10 H04W72/25

    Abstract: Proposed are a method by which a first device carries out wireless communication, and an apparatus supporting same. The method may comprise the steps of: transmitting, to the second device on the basis of a resource related to the first PSSCH, the second SCI and a first SL CSI RS including information related to a first SL CSI request; triggering a second SL CSI report related to a second resource set; transmitting, to the second device via a second PSCCH, third SCI for scheduling a second PSSCH and fourth SCI; and transmitting, to the second device on the basis of a resource related to the second PSSCH, the fourth SCI and a second SL CSI RS including information related to a second SL CSI request.

    METHOD AND APPARATUS FOR STARTING SL DRX TIMER ON BASIS OF DCI IN NR V2X

    公开(公告)号:US20240236994A1

    公开(公告)日:2024-07-11

    申请号:US18559235

    申请日:2022-05-06

    CPC classification number: H04W72/20 H04L1/1812 H04W76/28

    Abstract: Provided are a method by which a first apparatus communicates wirelessly, and an apparatus supporting same. The method comprises the steps of: obtaining a discontinuous reception (DRX) configuration containing information related to a hybrid automatic repeat request (HARQ) round trip time (RTT) timer; receiving, from a base station, downlink control information (DCI) including information related to at least one sidelink (SL) resource and information related to a physical uplink control channel (PUCCH) resource, on the basis of a physical downlink control channel (PDCCH) resource; and starting the HARQ RTT timer after the time domain of the PDCCH resource, on the basis that the PUCCH resource is not configured for the first apparatus, wherein the HARQ RTT timer may indicate the minimum duration before a retransmission grant is expected by the first apparatus.

    METHOD AND DEVICE FOR CONFIGURING SL DRX CONFIGURATION IN NR V2X

    公开(公告)号:US20240130000A1

    公开(公告)日:2024-04-18

    申请号:US18546815

    申请日:2022-01-24

    CPC classification number: H04W76/28 H04W72/12 H04W72/25 H04W76/10 H04W92/18

    Abstract: Provided are a method for performing wireless communication by a first device, and a device supporting same. The method may comprise the steps of: establishing a connection between the first device and a second device; transmitting a first radio resource control (RRC) reconfiguration sidelink message including a first sidelink (SL) discontinuous reception (DRX) configuration to the second device, wherein the first SL DRX configuration includes information related to a first SL DRX cycle and information related to a first active time; receiving, from the second device, failure information of the first SL DRX configuration; in response to the failure information, transmitting, to the second device, request information for requesting assistance information for reconfiguration of the first SL DRX configuration; and in response to the request information, receiving the assistance information from the second device.

    METHOD AND DEVICE FOR DISABLING HARQ FEEDBACK IN NR V2X

    公开(公告)号:US20240097827A1

    公开(公告)日:2024-03-21

    申请号:US17768197

    申请日:2020-10-12

    CPC classification number: H04L1/1812 H04L5/0055 H04W72/40

    Abstract: Provided are a method for a first device to perform wireless communication, and a device for supporting same. The method includes the steps of: generating a medium access control protocol data unit (MAC PDU) in which a hybrid automatic repeat request (HARQ) feedback is enabled; transmitting sidelink control information (SCI) including information related to the enabling of the HARQ feedback for the MAC PDU to a second device; performing an (N−1)-th transmission of the MAC PDU on the second device; transmitting SCI including information related to the disabling of the HARQ feedback for the MAC PDU to the second device; and performing an N-th transmission of the MAC PDU on the second device, wherein N may be the maximum number of transmissions related to MAC PDU.

    METHOD FOR SELECTING RESOURCE IN CONSIDERATION OF ACTIVE TIME RELATED TO SL DRX IN NR V2X

    公开(公告)号:US20240089993A1

    公开(公告)日:2024-03-14

    申请号:US18271403

    申请日:2022-01-12

    CPC classification number: H04W72/25 H04W72/1263 H04W72/541

    Abstract: Proposed is a method for operation of a first device (100) in a wireless communication system. The method may comprise the steps of: determining a sensing window; determining a selection window to be included in an active time of a sidelink (SL) discontinuous reception (DRX) configuration related to an SL DRX operation of a second device (200); selecting a resource for SL transmission in the selection window on the basis of sensing performed in the sensing window; transmitting, to the second device (200), sidelink control information (SCI) for scheduling a physical sidelink shared channel (PSSCH) through a physical sidelink control channel (PSCCH) on the basis of the resource; and transmitting SL data to the second device (200) through the PSSCH on the basis of the resource.

    METHOD AND DEVICE FOR REPORTING HARQ FEEDBACK TO BASE STATION IN NR V2X

    公开(公告)号:US20240089982A1

    公开(公告)日:2024-03-14

    申请号:US17766465

    申请日:2020-10-05

    CPC classification number: H04W72/232 H04L1/1812 H04L1/1893 H04W72/25

    Abstract: Provided are a method for a first device carrying out wireless communication and a device supporting same. The method may comprise the steps of: receiving, from a base station, via a first physical downlink control channel (PDCCH), first downlink control information (DCI) including information related to a first sidelink (SL) resource, and information related to a first physical uplink control channel (PUCCH) resource; receiving, from the base station, via a second PDCCH, second DCI including information related to a second SL resource, and information related to a second PUCCH resource; transmitting a first physical sidelink shared channel (PSSCH) on the basis of the first SL resource; transmitting a second PSSCH on the basis of the second SL resource; and transmitting, to the base station, via the second PUCCH, first hybrid automatic repeat request (HARQ) feedback information associated with the first PSSCH, and second HARQ feedback information associated with the second PSSCH. For example, the first SL resource and the second SL resource may be associated with one physical sidelink feedback channel (PSFCH) slot which includes a first PSFCH resource associated with the first SL resource, and a second PSFCH resource associated with the second SL resource, and the first PUCCH resource and the second PUCCH resource may be associated with the one PSFCH slot.

    METHOD AND DEVICE FOR PERFORMING SL DRX OPERATION IN NR V2X ON BASIS OF HARQ FEEDBACK

    公开(公告)号:US20240057125A1

    公开(公告)日:2024-02-15

    申请号:US18269397

    申请日:2021-12-22

    CPC classification number: H04W72/25 H04W76/28 H04W72/12 H04L1/1812

    Abstract: Proposed is a method for a first device to perform wireless communication according to an embodiment. The method may comprise the steps of: acquiring an SL DRX configuration including information related to a sidelink discontinuous reception (SL DRX) cycle and information related to an active time; transmitting first sidelink control information (SCI) to a second device through a first physical sidelink control channel (PSCCH), wherein the first sidelink control information (SCI) is for scheduling a first physical sidelink control channel (PSSCH); transmitting second SCI and a first medium access control (MAC) protocol data unit (PDU) to the second device through the first PSSCH; determining a first physical sidelink feedback channel (PSFCH) resource in the first PSFCH slot on the basis of an index of a slot related to the first PSSCH and an index of a subchannel; and receiving a first hybrid automatic repeat request (HARQ) feedback for the first MAC PDU, the first HARQ feedback being received from the second device on the basis of the first PSFCH resource. For example, the first PSFCH slot may be included in an inactive time at the time of transmission of the first MAC PDU. For example, the first PSFCH slot may be included in an active time at the time of reception of the first HARQ feedback.

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