Method and apparatus for transmitting and receiving information related to resource collision in NR V2X

    公开(公告)号:US11910409B2

    公开(公告)日:2024-02-20

    申请号:US18169501

    申请日:2023-02-15

    CPC classification number: H04W72/40 H04W8/26 H04W92/18 H04W4/40

    Abstract: Provided are a method by which a first apparatus performs wireless communication, and an apparatus supporting same. The method may comprise the steps of: receiving, via a first physical sidelink control channel (PSCCH), first sidelink control information (SCI) including information related to a plurality of sidelink (SL) resources which have been reserved by a second apparatus; receiving, via a second PSCCH, second SCI including information related to a plurality of SL resources which have been reserved by a third apparatus, wherein a first SL resource from among the plurality of SL resources which have been reserved by the second apparatus overlaps a second SL resource from among the plurality of SL resources which have been reserved by the third apparatus; determining a physical sidelink feedback channel (PSFCH) resource related to the first SL resource and the second SL resource; and transmitting, to the second apparatus or the third apparatus, information related to the overlap, on the basis of the PSFCH resource.

    Method for determining sidelink transmission power in NR V2X, and synchronization

    公开(公告)号:US11902906B2

    公开(公告)日:2024-02-13

    申请号:US18131537

    申请日:2023-04-06

    CPC classification number: H04W52/242 H04W4/40 H04W52/243 H04W52/367 H04W56/001

    Abstract: A method by which a first device performs wireless communication, and a device for supporting same are provided. The method can comprise the steps of: acquiring synchronization related to sidelink (SL) communication from a synchronization reference; receiving information related to a first power control parameter; generating a sidelink synchronization signal block (S-SSB) including a sidelink primary synchronization signal (S-PSS), a sidelink secondary synchronization signal (S-SSS), and a physical sidelink broadcast channel (PSBCH); determining a first transmission power value on the basis of a downlink (DL) path loss between a base station and the first device and the information related to the first power control parameter; and transmitting the S-SSB to a second device on the basis of the first transmission power value and the synchronization related to the SL communication.

    Method and device for selecting synchronization reference in NR V2X

    公开(公告)号:US11889443B2

    公开(公告)日:2024-01-30

    申请号:US17894754

    申请日:2022-08-24

    CPC classification number: H04W56/001 G01S19/256 H04W56/006

    Abstract: Provided are a method by which a first device performs wireless communication, and a device for supporting same are provided. The method can comprise the steps of: receiving information related to a sidelink (SL) bandwidth part (BWP); receiving, from a network, SL synchronization priority order information set through global navigation satellite systems (GNSS)-based synchronization; receiving, from the network, information for indicating whether selection of a base station (BS)-related synchronization reference is disabled; detecting, on the basis of the information for indicating that the selection of the base station-related synchronization reference is disabled, a synchronization signal transmitted through the SL BWP by a GNSS-related synchronization reference or other UEs; and performing synchronization with respect to the GNSS-related synchronization reference or one synchronization reference from among the other UEs on the basis of the synchronization signal.

    Method and device for reselecting sidelink transmission resource in NR V2X

    公开(公告)号:US11871441B2

    公开(公告)日:2024-01-09

    申请号:US18214670

    申请日:2023-06-27

    Inventor: Seungmin Lee

    CPC classification number: H04W72/56 H04W72/02 H04W72/0446 H04W72/20 H04W80/02

    Abstract: An embodiment of the present disclosure provides a method for performing sidelink communication by a first device. The method may comprise the steps of: reserving periodic transmission resources on the basis of a first priority value; generating a MAC PDU related to a second priority value; on the basis of the second priority value, determining whether to reselect a first SL resource among the periodic transmission resources; and on the basis of the determination on whether to reselect the first SL resource, transmitting the MAC PDU and SCI including the second priority value to a second device, wherein the first SL resource is at least one SL resource after the MAC PDU is generated.

    Method and device for transmitting or receiving physical sidelink feedback channel in wireless communication system

    公开(公告)号:US11864207B2

    公开(公告)日:2024-01-02

    申请号:US18109682

    申请日:2023-02-14

    CPC classification number: H04W72/25 H04W72/12

    Abstract: A method for transmitting a physical sidelink feedback channel (PSFCH) by a first terminal in a wireless communication system according to an embodiment of the present specification comprises the steps of receiving configuration information related to the PSFCH from a second terminal; receiving a physical sidelink control channel (PSCCH) from the second terminal, wherein the PSCCH is related to scheduling of a physical sidelink shared channel (PSSCH); and transmitting the PSFCH to the second terminal. The PSFCH is transmitted in a slot on the basis of the PSFCH including collision information. The slot is determined on the basis of the number of preconfigured slots and a resource reserved on the basis of sidelink control information (SCI) related to the PSCCH.

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