METHOD AND APPARATUS FOR PERFORMING MODE 1 SL COMMUNICATION IN NR V2X

    公开(公告)号:US20230037912A1

    公开(公告)日:2023-02-09

    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.

    METHOD AND APPARATUS FOR RATE-MATCHING CONTROL INFORMATION IN NR V2X

    公开(公告)号:US20230024430A1

    公开(公告)日:2023-01-26

    申请号:US17782260

    申请日:2020-12-03

    Abstract: A first device performs wireless communication by performing operations that include: attaching cyclic redundancy check (CRC) bits to first bits related to second sidelink control information (SCI), thereby acquiring second bits; acquiring third bits based on channel coding regarding the second bits; acquiring the number of first modulation symbols related to the second SCI acquiring the number of second modulation symbols related to the second SCI by adding a gamma value to the number of the first modulation symbols based on the number of at least one resource element (RE), to which the first modulation symbols are not mapped, among multiple REs on a symbol, to which the last modulation symbol among the first modulation symbols is mapped, within a resource block (RB) to which the last modulation symbol belongs; and performing rate matching regarding the third bits based on the second modulation symbols.

    METHOD AND APPARATUS FOR TRANSMITTING PSFCH IN NR V2X

    公开(公告)号:US20220394702A1

    公开(公告)日:2022-12-08

    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 DEVICE FOR PERFORMING SL TRANSMISSION IN NR V2X

    公开(公告)号:US20220393819A1

    公开(公告)日:2022-12-08

    申请号:US17773953

    申请日:2020-11-03

    Abstract: A method for performing wireless communication by a first device and a device for supporting same are provided. The method comprises the steps of: 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 RESOURCE RESERVATION BY TERMINAL IN NR V2X

    公开(公告)号:US20220338067A1

    公开(公告)日:2022-10-20

    申请号:US17639102

    申请日:2020-08-27

    Abstract: Proposed is a method for performing wireless communication by a first device. The method may comprise the steps of: transmitting sidelink control information (SCI) to a second device through a physical sidelink control channel (PSCCH) or a physical sidelink shared channel (PSSCH) related to the PSCCH, and transmitting data to the second device through the PSSCH related to the PSCCH. For example, the SCI may include position information of M number of resources related to previous transmission of a current time point, position information of a resource related to transmission of the current time point, and position information of P number of resources related to post-transmission of the current time point. For example, the value of the M may be 0 or a positive integer, and the value of the P may be 0 or a positive integer.

    METHOD AND DEVICE FOR TRANSMITTING SCI IN NR V2X

    公开(公告)号:US20220303969A1

    公开(公告)日:2022-09-22

    申请号:US17636341

    申请日:2020-08-25

    Abstract: Provided are a method for a first device to perform wireless communication, and a device for supporting same. The method may include the steps of: transmitting first sidelink control information (SCI) on a first resource through a first physical sidelink control channel (PSCCH); transmitting second SCI on the first resource through a first physical sidelink shared channel (PSSCH) related to the first PSCCH, wherein at least one of the first SCI and the second SCI includes information related to a second resource, and a transport block (TB) is not transmitted through the first PSSCH; transmitting the first SCI on the second resource to a second device through a second PSCCH; and transmitting the second SCI and the TB on the second resource to the second device through a second PSSCH related to the second PSCCH.

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