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

    公开(公告)号:US20230345463A1

    公开(公告)日:2023-10-26

    申请号:US18337649

    申请日:2023-06-20

    Abstract: Presented in one embodiment is a method by which a first device performs wireless communication. The method may comprise the steps of: acquiring a sidelink discontinuous reception (SL DRX) configuration; receiving, from a second device, first sidelink control information (SCI) for scheduling a first physical sidelink shared channel (PSSCH) through a first physical sidelink control channel (PSCCH); receiving, from the second device, second SCI and first data through the first physical sidelink shared channel (PSSCH); and determining a first physical sidelink feedback channel (PSFCH) resource on the basis of a slot index and a sub-channel index, which are related to the first PSSCH. For example, a first timer included in the SL DRX configuration can be initiated on the basis of the omission of a first PSFCH transmission related to the first PSSCH on the first PSFCH resource.

    METHOD AND APPARATUS FOR IUC OPERATION BASED ON TIMER IN NR V2X

    公开(公告)号:US20230254862A1

    公开(公告)日:2023-08-10

    申请号:US17977869

    申请日:2022-10-31

    CPC classification number: H04W72/1278 H04W24/10

    Abstract: A method of operating a first device 100 in a wireless communication system is proposed. The method may include: receiving, from a second device 200, an IUC request; triggering an IUC information report based on the IUC request; starting an IUC report timer related to a transmission of IUC information based on the triggered IUC information report; transmitting the IUC information to the second device 200 based on the IUC report timer being running; stopping the IUC reporting timer based on the IUC information being transmitted; and canceling the triggered IUC information report based on the IUC information being transmitted.

    METHOD AND APPARATUS FOR PERFORMING SL DRX OPERATION IN NR V2X

    公开(公告)号:US20230164770A1

    公开(公告)日:2023-05-25

    申请号:US18101063

    申请日:2023-01-24

    CPC classification number: H04W72/1263 H04L1/1812 H04W72/25 H04W76/28

    Abstract: Proposed are a method by which a first apparatus performs wireless communication, and an apparatus supporting same. The method may comprise the steps of: obtaining a sidelink (SL) discontinuous reception (DRX) configuration including information related to an SL DRX timer; receiving, from a second apparatus through a physical sidelink control channel (PSCCH), second sidelink control information (SCI) and first SCI for scheduling a physical sidelink shared channel (PSSCH); receiving, from the second apparatus through the PSCCH, the second SCI related to groupcast and a medium access control (MAC) packet data unit (PDU); and determining, on the basis of an index of a sub-channel related to the PSSCH and an index of a slot, a physical sidelink feedback channel (PSFCH) resource.

    METHOD AND DEVICE FOR TRANSMITTING/RECEIVING INTER-UE COORDINATION MESSAGE IN NR V2X

    公开(公告)号:US20230147699A1

    公开(公告)日:2023-05-11

    申请号:US18150006

    申请日:2023-01-04

    CPC classification number: H04W72/1263 H04W72/25

    Abstract: A method by which a first device performs wireless communication, and a device for supporting same are provided. The method may comprise the steps of: transmitting, to a second device, through a physical sidelink control channel (PSCCH), first sidelink control information (SCI) for the scheduling of second sidelink control information (SCI) and a physical sidelink shared channel (PSSCH), the first SCI including information related to a frequency resource allocation, information related to a time resource allocation, and information related to the format of the second SCI; and transmitting, to the second device, through the PSSCH, an inter-UE coordination message and the second SCI including a source ID and a destination ID. The inter-UE coordination message can include information related to a preferred resource or information related to a non-preferred resource, and information indicating that the inter-UE coordination message has been transmitted can be included in the first SCI or the second SCI.

    METHOD AND DEVICE FOR REQUESTING TRANSMISSION RESOURCE FOR RELAY IN NR V2X

    公开(公告)号:US20230146227A1

    公开(公告)日:2023-05-11

    申请号:US17916455

    申请日:2020-07-08

    CPC classification number: H04W72/40 H04W72/25 H04W72/566 H04W28/0278

    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: receiving, from a second device, a first physical sidelink control channel (PSCCH) and a first physical sidelink shared channel (PSSCH) associated with the first PSCCH; receiving, from a third device, a second PSCCH and a second PSSCH associated with the second PSCCH; storing data received over the first PSSCH in a first buffer; storing data received over the second PSSCH in a second buffer; transmitting, to a base station, a scheduling request (SR) and/or a buffer status report (BSR) associated with the first buffer, on the basis that available data is in the first buffer; receiving information associated with a first resource from the base station as a response to the SR and/or BSR associated with the first buffer; and transmitting the data on the first buffer to a fourth device by means of the first resource.

    DISCONTINUOUS RECEPTION OF DOWNLINK SIGNAL FOR SIDELINK TRANSMISSION

    公开(公告)号:US20230112798A1

    公开(公告)日:2023-04-13

    申请号:US17802033

    申请日:2021-03-31

    Abstract: A method and apparatus for discontinuous reception (DRX) of downlink signal for sidelink transmission is provided. A wireless device operating in a wireless communication system monitors a physical downlink control channel (PDCCH) carrying a sidelink grant during an active time including a time interval for which a scheduling request (SR) is transmitted on a physical uplink control channel (PUCCH) and is pending, based on the SR being triggered for a sidelink buffer status report (SL BSR) and/or a sidelink channel state information (SL CSI) reporting.

    HARQ FEEDBACK BASED ON COMMUNICATION RANGE AND LOCATION OF DEVICES

    公开(公告)号:US20230078336A1

    公开(公告)日:2023-03-16

    申请号:US17799810

    申请日:2021-03-25

    Abstract: A method and apparatus for hybrid automatic repeat request (HARQ) feedback based on a communication range and location of devices is provided. A first device (e.g., receiving user equipment in sidelink) receives, from a second device (e.g., transmitting user equipment in sidelink, control information including 1) a communication range, and 2) a location of the second device. The first device determines whether to perform a hybrid automatic repeat request (HARQ) feedback based on whether a distance between a location of the first device for the control information and the location of the second device is smaller or equal to the communication range.

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