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.

    Method and device for performing SL transmission in NR V2X

    公开(公告)号:US11791962B2

    公开(公告)日:2023-10-17

    申请号:US17773953

    申请日:2020-11-03

    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.

    Method and device for performing SL communication on basis of assistance information in NR V2X

    公开(公告)号:US11778640B2

    公开(公告)日:2023-10-03

    申请号:US18084161

    申请日:2022-12-19

    CPC classification number: H04W72/40 H04W72/25 H04W72/1263

    Abstract: A method by which a first device performs wireless communication, and a device for supporting same. The method includes receiving, from a second device, first sidelink control information (SCI) including scheduling information about a physical sidelink shared channel (PSSCH) through a physical sidelink control channel (PSCCH), the first SCI including information related to priority, information related to frequency resource allocation, information related to time resource allocation, information related to a demodulation reference signal (DMRS) pattern, and information related to a modulation and coding scheme (MCS); receiving, from the second device, assistance information including information related to first resources and information related to a service type through the PSSCH; generating a medium access control protocol data unit (MAC PDU); selecting a sidelink (SL) resource from among the first resources based on the MAC PDU being related to the service type; and transmitting the MAC PDU based on the SL resource.

    Method and apparatus for selecting resources based on partial sensing in NR V2X

    公开(公告)号:US11758582B2

    公开(公告)日:2023-09-12

    申请号:US18098965

    申请日:2023-01-19

    CPC classification number: H04W74/0808 H04W4/40 H04W72/20 H04W76/28

    Abstract: A method for a first device to perform wireless communication and an apparatus supporting the same are provided. The method comprises, triggering resource selection in a first slot; determining a time interval of a selection window from the first slot based on a remaining packet delay budget (PDB), wherein the selection window includes Y candidate slots; performing sensing for L slots after the first slot; selecting at least one resource for sidelink (SL) transmission within the selection window based on the sensing for the L slots; transmitting, to a second device through a physical sidelink control channel (PSCCH), a first sidelink control information (SCI) for scheduling of a physical sidelink shared channel (PSSCH) and a second SCI; and transmitting, to the second device through the PSSCH, the second SCI and data.

    Method and device for managing control information in NR V2X

    公开(公告)号:US11696286B2

    公开(公告)日:2023-07-04

    申请号:US17556653

    申请日:2021-12-20

    CPC classification number: H04W72/20 H04L1/1812

    Abstract: A method for performing wireless communication by a first device and a device for supporting same are provided. The method may include receiving, from a second device, a physical sidelink control channel (PSCCH) including a first sidelink control information (SCI) for scheduling a physical sidelink shared channel (PSSCH); receiving, from the second device, the PSSCH including a second SCI; and transmitting, to the second device, a hybrid automatic repeat request (HARQ) feedback through a physical sidelink feedback channel (PSFCH) in response to the PSSCH based on a format of the second SCI.

    Method and apparatus for performing mode 1 SL communication in NR V2X

    公开(公告)号:US11638292B2

    公开(公告)日:2023-04-25

    申请号:US17963593

    申请日:2022-10-11

    Abstract: Provided are a method by which a first device performs wireless communication an apparatus for supporting same. The method may comprise: receiving, from the base station through a physical downlink control channel (PDCCH), a downlink control information (DCI) related to the SL HARQ process ID, wherein the DCI includes information related to a second SL grant for retransmission of the MAC PDU and information related to a second PUCCH resource, wherein, based on the buffer related to the SL HARQ process ID being flushed, the first device does not transmit the MAC PDU to the second device based on the second SL grant, and the first device does not transmit SL HARQ feedback information related to the MAC PDU to the base station based on the second PUCCH resource.

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