Method and device for selecting transmission resource in NR V2X

    公开(公告)号:US12250713B2

    公开(公告)日:2025-03-11

    申请号:US17608679

    申请日:2020-05-04

    Abstract: Provided are a method for a first device to perform wireless communication, and a device for supporting same. The method may comprise the steps of: selecting a first sidelink (SL) transmission resource within a selection window on the basis of sensing in a first time interval; selecting a second SL transmission resource on the basis of sensing in a second time interval; and performing SL transmission by using the second SL transmission resource. Here, the second time interval may be a time interval prior to the first SL transmission resource.

    Method and apparatus for configuring PSFCH resource in NR V2X

    公开(公告)号:US12232090B2

    公开(公告)日:2025-02-18

    申请号:US17763517

    申请日:2021-08-20

    Abstract: Provided are a method by which a first device performs wireless communication, and an apparatus supporting same. The method may comprise the steps of: allocating at least one resource block (RB) from among a set of a plurality of RBs for a physical sidelink feedback channel (PSFCH) in a PSFCH slot, with respect to a physical sidelink shared channel (PSSCH) resource; performing PSSCH reception from a second device on the basis of the PSSCH resource related to the PSFCH slot; and transmitting hybrid automatic repeat request acknowledgment (HARQ-ACK) information to the second device in response to the PSSCH reception, on the basis of the at least one RB allocated with respect to the PSSCH resource.

    Method and apparatus for transmitting S-SSB in NR V2X

    公开(公告)号:US12219511B2

    公开(公告)日:2025-02-04

    申请号:US17754290

    申请日:2020-09-22

    Abstract: A method for operation of a first device (100) in a wireless communication system is proposed. The method may comprise the steps of: generating a sidelink synchronization signal block (S-SSB) including a sidelink primary synchronization signal (SPSS) and a sidelink secondary synchronization signal (S-SSS); and transmitting the S-SSB to a second device (200).

    Method and apparatus for performing DRX operation based on resource allocation information in NR V2X

    公开(公告)号:US12200684B2

    公开(公告)日:2025-01-14

    申请号:US17569214

    申请日:2022-01-05

    Abstract: Provided are a method for performing wireless communication by a first device, and an apparatus for supporting same. The method may comprise: obtaining a sidelink (SL) discontinuous reception (DRX) configuration including information related to a timer for an active time and information related to a hybrid automatic repeat request (HARQ) round trip time (RTT) timer; starting the timer for the active time; receiving, from a second device through a physical sidelink control channel (PSCCH) based on a first SL resource, a first sidelink control information (SCI) for scheduling of a physical sidelink shared channel (PSSCH) and a second SCI; and receiving, from the second device through the PSSCH based on the first SL resource, the second SCI and data. Herein, based on resource allocation information for a second SL resource being included in the first SCI, the first device may not monitor retransmission of the data from the second device in a time domain between the first SL resource and the second SL resource, and based on the resource allocation information for the second SL resource not being included in the first SCI, the HARQ RTT timer included in the SL DRX configuration may be started by the first device.

    Method and apparatus for transmitting PSFCH in NR V2X

    公开(公告)号:US12185342B2

    公开(公告)日:2024-12-31

    申请号:US17755646

    申请日:2020-11-09

    Abstract: According to an embodiment of the present disclosure, a method for performing sidelink communication is provided. The method may include: receiving sidelink control information (SCI) from a second apparatus and transmitting hybrid automatic repeat request negative acknowledgement (HARQ NACK) to the second apparatus through physical sidelink feedback channel (PSFCH) based on information on a location of the first apparatus being not available and HARQ NACK-only feedback option being applied by the SCI, wherein a transport block (TB) related to the SCI is not decoded by the first apparatus.

    Method and apparatus for transmitting SCI in NR V2X groupcast communication

    公开(公告)号:US12156178B2

    公开(公告)日:2024-11-26

    申请号:US17594270

    申请日:2020-04-13

    Abstract: The present disclosure proposes an operation method of a first device in a wireless communication system. The method may comprise the steps of: receiving, from a base station, information related to the maximum number of transmission resources which can be indicated by sidelink control information (SCI); determining a size of a field on the SCI, the field indicating the number of the transmission resources, on the basis of the information related to the maximum number of the transmission resources which can be indicated by the SCI; and transmitting, to a second device, the SCI including the field indicating the number of the transmission resources.

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