Method and device for reporting information about SL HARQ feedback in NR V2X

    公开(公告)号:US12232120B2

    公开(公告)日:2025-02-18

    申请号:US17630060

    申请日:2020-08-12

    Abstract: Provided are a method for a first device to perform wireless communication, and a device supporting same. The method may include the steps of: receiving first downlink control information (DCI), including information related to a first physical uplink control channel (PUCCH) resource and information related to sidelink (SL) resource allocation, from a base station through a first physical downlink control channel (PDCCH); transmitting a physical sidelink control channel (PSCCH) and a physical sidelink shared channel (PSSCH) to a second device on the basis of the information related to the SL resource allocation; receiving SL hybrid automatic repeat request (HARQ) feedback from the second device through a physical sidelink feedback channel (PSFCH) related to the PSSCH; receiving second DCI, including information related a second PUCCH resource and information related to downlink (DL) resource allocation, from the base station through a second PDCCH; receiving a physical downlink shared channel (PDSCH) related to the second PDCCH from the base station on the basis of information related to the DL resource allocation; and transmitting, on at least one of the first PUCCH resource or the second PUCCH resource, at least one of the SL HARQ feedback or HARQ feedback related to the PDSCH to the base station. Here, the first PUCCH resource and the second PUCCH resource may overlap in the time domain.

    Method and apparatus for power saving in NR V2X

    公开(公告)号:US12232085B2

    公开(公告)日:2025-02-18

    申请号:US18084174

    申请日:2022-12-19

    Abstract: A method by which a first device performs wireless communication and an apparatus for supporting same are provided. The method comprises the steps of: determining a selection window; selecting Y candidate slots within the selection window; determining at least one slot related to the Y candidate slots, on the basis of a resource reservation period value set for a resource pool; selecting at least one sidelink (SL) resource from among SL resources included in the Y candidate slots, on the basis of sensing the at least one slot; and performing SL communication on the basis of the at least one SL resource, wherein the value of Y may be a positive integer.

    Method and apparatus for selecting criteria for sidelink synchronization in NR V2X

    公开(公告)号:US12232057B2

    公开(公告)日:2025-02-18

    申请号:US17771765

    申请日:2020-10-23

    Abstract: Proposed is a method for performing wireless communication by a first device. The method may comprise the steps of: receiving a plurality of sidelink-synchronization signal blocks (S-SSBs) from a plurality of synchronization sources, wherein each of the plurality of S-SSBs includes a sidelink primary synchronization signal (S-PSS), a sidelink secondary synchronization signal (S-SSS), and a physical sidelink broadcast channel (PSBCH); selecting any one of the plurality of synchronization sources on the basis of a reference signal received power (RSRP) associated with each of the plurality of S-SSBs and a sidelink synchronization signal (SLSS) ID associated with each of the plurality of S-SSBs; performing synchronization on the basis of the S-SSB associated with the selected synchronization source; and transmitting a PSCCH or PSSCH to a second device on the basis of the synchronization. For example, the SLSS ID associated with each of the plurality of S-SSBs may be a criterion for selecting any one of the plurality of synchronization sources, on the basis of the fact that a RSRP value associated with each of the plurality of S-SSBs is greater than or equal to a minimum RSRP threshold value.

    METHOD AND DEVICE FOR TRANSMITTING OR RECEIVING HARQ FEEDBACK IN NR V2X

    公开(公告)号:US20250055646A1

    公开(公告)日:2025-02-13

    申请号:US17767377

    申请日:2020-10-07

    Abstract: A method for performing radio communication by a first device, and a device for supporting same may be provided. The method may comprise the steps of: receiving a physical sidelink control channel (PSCCH) from a second device; receiving a physical sidelink shared channel (PSSCH) related to the PSCCH from the second device; determining a physical sidelink feedback channel (PSFCH) resource related to the PSSCH, on the basis of an index of a slot related to the PSSCH and an index of a sub-channel related to the PSSCH; and transmitting, to the second device, hybrid automatic repeat request (HARQ) feedback information for the PSSCH on the PSFCH resource.

    Method for transmitting and receiving sidelink signal in wireless communication system

    公开(公告)号:US12207290B2

    公开(公告)日:2025-01-21

    申请号:US17635328

    申请日:2020-08-18

    Abstract: An aspect of the present disclosure is a method for user equipment in a wireless communication system, wherein a physical sidelink control channel (PSCCH) and a physical sidelink shared channel (PSSCH) are received on an aggregation slot including a plurality of slots, and a sidelink signal is transmitted on a resource selected on the basis of at least one among a reference signal received power (RSRP), a received signal strength indication (RSSI), and a reference signal received quality (RSRQ), which are measured from the aggregation slot. The RSRP is measured from each of slots, on which a plurality of PSCCHs are received, among the plurality of slots on the basis of the plurality of PSCCHs being received on the aggregation slot.

    Method for transmitting sidelink signal in wireless communication system

    公开(公告)号:US12177164B2

    公开(公告)日:2024-12-24

    申请号:US17617185

    申请日:2020-07-30

    Abstract: Provided is a method for a user device in a wireless communication system according to an aspect of the present disclosure in which: allocation information relating to a plurality of bandwidth parts (BWPs) is received, wherein the plurality of BWPs comprise a first BWP and a plurality of second BWPs comprised in the first BWP; a sidelink signal is transmitted on the first BWP on the basis of the activation of the first BWP; and the sidelink signal is transmitted on at least one second BWP on the basis of the activation of the at least one second BWP among the plurality of second BWPs. The allocation information comprises: the start point of the first BWP and the plurality of second BWPs; the size of the first BWP and the plurality of second BWPs; and the gap among the plurality of second BWPs. Each of the plurality of second BWPs is allocated within the first BWP from the start point in the gap unit on a frequency domain.

    Method and device for disabling HARQ feedback in NR V2X

    公开(公告)号:US12143220B2

    公开(公告)日:2024-11-12

    申请号:US17768197

    申请日:2020-10-12

    Abstract: Provided are a method for a first device to perform wireless communication, and a device for supporting same. The method includes the steps of: generating a medium access control protocol data unit (MAC PDU) in which a hybrid automatic repeat request (HARQ) feedback is enabled; transmitting sidelink control information (SCI) including information related to the enabling of the HARQ feedback for the MAC PDU to a second device; performing an (N−1)-th transmission of the MAC PDU on the second device; transmitting SCI including information related to the disabling of the HARQ feedback for the MAC PDU to the second device; and performing an N-th transmission of the MAC PDU on the second device, wherein N may be the maximum number of transmissions related to MAC PDU.

Patent Agency Ranking