OPERATION METHOD AND DEVICE RELATED TO SIDELINK DRX AND INITIAL TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20240407044A1

    公开(公告)日:2024-12-05

    申请号:US18694731

    申请日:2022-09-26

    Abstract: An embodiment relates to an operation method of a transmission (TX) UE related to sidelink DRX in a wireless communication system, the method comprising the steps in which: the TX UE establishes a PC5 connection with a reception (RX) UE; the TX UE receives a physical downlink control channel (PDCCH) including resource allocation information from a base station; and the TX UE transmits a sidelink signal through a resource based on the resource allocation information to the RX UE, wherein the TX UE performs initial transmission by using a resource related to retransmission on the basis that a resource related to the initial transmission does not overlap with an active time of the RX UE.

    METHOD AND DEVICE FOR PERFORMING WIRELESS COMMUNICATION RELATED TO SL RESOURCES IN NR V2X

    公开(公告)号:US20240389112A1

    公开(公告)日:2024-11-21

    申请号:US18280376

    申请日:2023-02-10

    Abstract: Proposed are a method by which a first device performs wireless communication and a device supporting same. For example, the first device may receive, from a second device, an RRC message including information related to whether inter-user equipment (UE) coordination capability is supported. For example, the first device may transmit an inter-UE coordination request MAC CE to the second device, on the basis of the information related to whether the inter-UE coordination capability is supported indicating that the inter-UE coordination capability is supported. For example, the first device may receive, from the second device, inter-UE coordination information including information related to a preferred resource or information related to a non-preferred resource. For example, the first device may select an SL resource on the basis of the inter-UE coordination information. For example, the first device may transmit first SCI for scheduling of second SCI and a PSSCH via a PSCCH, on the basis of the SL resource. For example, the first device may transmit the second SCI and a MAC PDU via the PSSCH, on the basis of the SL resource.

    METHOD AND DEVICE FOR PERFORMING SL COMMUNICATION ON BASIS OF SL DRX COMPATIBILITY IN NR V2X

    公开(公告)号:US20240349313A1

    公开(公告)日:2024-10-17

    申请号:US18683109

    申请日:2022-08-12

    CPC classification number: H04W72/40 H04W76/28

    Abstract: A method for performing wireless communication by a first device, and a device supporting same are provided. The method may comprise the steps of: acquiring at least one SL discontinuous reception (DRX) configuration; monitoring a message for establishment of unicast, on the basis of a first service identifier (ID); receiving the message for establishment of unicast from a second device, and establishing a unicast connection with the second device on the basis of the message for establishment of unicast, wherein, on the basis of the first service ID being related to a transmission profile indicating compatibility of SL DRX support, the message for establishment of unicast is monitored on the basis of a first SL DRX configuration.

    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 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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