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.

    Method and device for controlling sidelink transmission power in NR V2X

    公开(公告)号:US11838871B2

    公开(公告)日:2023-12-05

    申请号:US17951391

    申请日:2022-09-23

    CPC classification number: H04W52/14 H04L5/0048 H04W52/242 H04W52/367

    Abstract: Provided are a method in which a first device performs wireless communication, and a device supporting same. The method can comprise the steps of: deciding first power for physical sidelink shared channel (PSSCH) transmission in a second symbol duration; deciding second power for physical sidelink control channel (PSCCH) transmission in a first symbol interval on the basis of the first power; performing the PSCCH transmission to a second device in the first symbol duration on the basis of the second power; and performing the PSSCH transmission to the second device in the second symbol duration on the basis of the first power. The second symbol duration can comprise resources for the PSSCH transmission. The first symbol duration can comprise resources for the PSCCH transmission and the PSSCH transmission.

    Method and device for performing SL transmission in NR V2X

    公开(公告)号:US11838233B2

    公开(公告)日:2023-12-05

    申请号:US18095819

    申请日:2023-01-11

    CPC classification number: H04L5/0048 H04W72/20

    Abstract: A method for performing wireless communication by a first device and a device for supporting same. The method includes: mapping first sidelink control information (SCI) onto a resource related to a physical sidelink control channel (PSCCH); mapping a phase tracking-reference signal (PT-RS) onto a resource related to a physical sidelink shared channel (PSSCH), on the basis of a cyclic redundancy check (CRC) on the PSCCH; mapping second SCI onto a resource onto which the PT-RS is not mapped, among resources related to the PSSCH; and transmitting the first SCI, the second SCI, and the PT-RS to a second device, wherein the second SCI is not mapped onto a resource onto which the PT-RS is mapped.

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