Method and device for configuring SL HARQ RTT timer in NR V2X

    公开(公告)号:US11770840B2

    公开(公告)日:2023-09-26

    申请号:US18051265

    申请日:2022-10-31

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

    Abstract: Provided are a method for performing wireless communication by a first device, and a device for supporting same. The method may comprise: obtaining a sidelink (SL) discontinuous reception (DRX) configuration including a value of a SL DRX retransmission timer; receiving, from a second device through a physical sidelink control channel (PSCCH), first sidelink control information (SCI) for scheduling of second SCI and a physical sidelink shared channel (PSSCH); receiving, from the second device through the PSSCH, the second SCI and data; determining a value of a SL DRX hybrid automatic repeat request (HARD) round trip time (RTT) timer as zero, based on that information related to a next retransmission resource is not included in the first SCI; and starting the SL DRX retransmission timer.

    Method and apparatus for scheduling plurality of resources in NR V2X

    公开(公告)号:US11722280B2

    公开(公告)日:2023-08-08

    申请号:US17887902

    申请日:2022-08-15

    CPC classification number: H04L5/0053 H04W72/1263 H04W72/20

    Abstract: A method for performing wireless communication by a first device, and an apparatus supporting same. The method includes: determining a first PSSCH resource, a second PSSCH resource, and a third PSSCH resource; and transmitting, to a second device, Sidelink Control Information (SCI) including information related to frequency domains of the second PSSCH resource and the third PSSCH resource on a first PSCCH resource related to the first PSSCH resource. Here, the information related to the frequency domains is obtained on the basis of the number of subchannels included in a resource pool, an index of a starting subchannel of the second PSSCH resource, an index of a starting subchannel of the third PSSCH resource, the number of subchannels included in the second PSSCH resource, and the number of subchannels included in the third PSSCH resource, and the information related to the frequency domains may be a zero or positive integer.

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

    公开(公告)号:US20230199824A1

    公开(公告)日:2023-06-22

    申请号:US17924760

    申请日:2021-05-14

    CPC classification number: H04W72/563 H04W72/25 H04L1/1812

    Abstract: A method for performing wireless communication by a first device and a device supporting same may be provided. The method may comprise the steps of: receiving, from a base station, information related to an uplink (UL) resource for reporting sidelink (SL) hybrid automatic repeat request (HARQ) feedback to the base station; transmitting first sidelink control information (SCI) to a second device through a physical sidelink control channel (PSCCH); transmitting second SCI and a medium access control protocol data unit (MAC PDU) to the second device through a physical sidelink shared channel (PSSCH) related to the PSCCH; determining a physical sidelink feedback channel (PSFCH) resource on the basis of an index of a sub channel and an index of a slot related to the PSSCH; and transmitting the SL HARQ feedback on the MAC PDU to the base station on the basis of the UL resource. A minimum time gap between the PSFCH resource and the UL resource may be determined on the basis of N, X, numerology of an SL bandwidth part (BWP), and numerology of a UL BWP, wherein N may be determined on the basis of a minimum value among the numerology of the SL BWP and the numerology of the UL BWP, and X may be determined on the basis of information related to a priority.

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