METHOD AND APPARATUS FOR RESELECTING RESOURCE CONSIDERING SL DRX OPERATION IN NR V2X

    公开(公告)号:US20240341008A1

    公开(公告)日:2024-10-10

    申请号:US18688956

    申请日:2022-10-04

    摘要: Provided are a method by which a first device performs wireless communication and an apparatus supporting same. The method comprises the steps of: obtaining a sidelink (SL) discontinuous reception (DRX) configuration; triggering resource selection; determining a selection window on the basis of the resource selection being triggered; selecting a first resource and a second resource within the selection window, the first resource belonging to a current active time of the SL DRX configuration and the second resource belonging to a first future active time of the SL DRX configuration; and reselecting the first resource as a third resource on the basis of re-evaluation or preemption regarding the first resource, wherein the first resource may be reselected as the third resource such that a second future active time of the SL DRX configuration, determined on the basis of SL communication on the third resource, includes a time domain of the second resource.

    METHOD AND DEVICE FOR CONNECTING RESOURCES THROUGH RESOURCE RESELECTION UNDER SL DRX OPERATION IN NR V2X

    公开(公告)号:US20240334534A1

    公开(公告)日:2024-10-03

    申请号:US18579764

    申请日:2022-07-15

    IPC分类号: H04W76/28 H04W72/25

    CPC分类号: H04W76/28 H04W72/25

    摘要: Proposed is an operation method of a first device (100) in a wireless communication system. The method may comprise the steps of: selecting, in a resource selection window, a first resource and a second resource included in a first active time including the time when a timer, which is related to an SL DRX configuration of a second device (200) and to an active time included in the SL DRX configuration, was to have operated on the basis of reception performed on the basis of the first resource; and reselecting the first resource as a third resource in the resource selection window, wherein the third resource causes the second resource to be included in a second active time including the time when the timer related to the active time operates on the basis of reception performed on the basis of the third resource.

    METHOD AND APPARATUS FOR STARTING SL DRX TIMER ON BASIS OF DCI IN NR V2X

    公开(公告)号:US20240236994A1

    公开(公告)日:2024-07-11

    申请号:US18559235

    申请日:2022-05-06

    摘要: Provided are a method by which a first apparatus communicates wirelessly, and an apparatus supporting same. The method comprises the steps of: obtaining a discontinuous reception (DRX) configuration containing information related to a hybrid automatic repeat request (HARQ) round trip time (RTT) timer; receiving, from a base station, downlink control information (DCI) including information related to at least one sidelink (SL) resource and information related to a physical uplink control channel (PUCCH) resource, on the basis of a physical downlink control channel (PDCCH) resource; and starting the HARQ RTT timer after the time domain of the PDCCH resource, on the basis that the PUCCH resource is not configured for the first apparatus, wherein the HARQ RTT timer may indicate the minimum duration before a retransmission grant is expected by the first apparatus.

    NETWORK CONFIGURATION-BASED SIDELINK POSITIONING METHOD AND APPARATUS

    公开(公告)号:US20240214966A1

    公开(公告)日:2024-06-27

    申请号:US18023333

    申请日:2021-08-26

    发明人: Woosuk KO Hanbyul SEO

    IPC分类号: H04W64/00 H04L5/00 H04W92/18

    摘要: A method for performing wireless communication by a first device, and an apparatus supporting same are provided. The method may comprise the steps of: transmitting, to a base station, information related to a sidelink (SL) positioning group; receiving, from the base station, information related to an SL positioning reference signal (PRS) resource; and transmitting or receiving an SL PRS on the basis of the SL PRS resource, wherein the SL PRS is a reference signal for positioning performed between multiple devices in the SL positioning group, and the SL PRS resource is configured on the basis of the information related to the SL positioning group.

    METHOD AND DEVICE FOR CONFIGURING SL DRX CONFIGURATION IN NR V2X

    公开(公告)号:US20240130000A1

    公开(公告)日:2024-04-18

    申请号:US18546815

    申请日:2022-01-24

    摘要: Provided are a method for performing wireless communication by a first device, and a device supporting same. The method may comprise the steps of: establishing a connection between the first device and a second device; transmitting a first radio resource control (RRC) reconfiguration sidelink message including a first sidelink (SL) discontinuous reception (DRX) configuration to the second device, wherein the first SL DRX configuration includes information related to a first SL DRX cycle and information related to a first active time; receiving, from the second device, failure information of the first SL DRX configuration; in response to the failure information, transmitting, to the second device, request information for requesting assistance information for reconfiguration of the first SL DRX configuration; and in response to the request information, receiving the assistance information from the second device.

    METHOD AND DEVICE FOR DISABLING HARQ FEEDBACK IN NR V2X

    公开(公告)号:US20240097827A1

    公开(公告)日:2024-03-21

    申请号:US17768197

    申请日:2020-10-12

    IPC分类号: H04L1/1812 H04L5/00 H04W72/40

    摘要: 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.

    METHOD FOR SELECTING RESOURCE IN CONSIDERATION OF ACTIVE TIME RELATED TO SL DRX IN NR V2X

    公开(公告)号:US20240089993A1

    公开(公告)日:2024-03-14

    申请号:US18271403

    申请日:2022-01-12

    摘要: Proposed is a method for operation of a first device (100) in a wireless communication system. The method may comprise the steps of: determining a sensing window; determining a selection window to be included in an active time of a sidelink (SL) discontinuous reception (DRX) configuration related to an SL DRX operation of a second device (200); selecting a resource for SL transmission in the selection window on the basis of sensing performed in the sensing window; transmitting, to the second device (200), sidelink control information (SCI) for scheduling a physical sidelink shared channel (PSSCH) through a physical sidelink control channel (PSCCH) on the basis of the resource; and transmitting SL data to the second device (200) through the PSSCH on the basis of the resource.

    CLEARING RETRANSMISSION RESOURCE BASED ON HARQ-ACK

    公开(公告)号:US20240048284A1

    公开(公告)日:2024-02-08

    申请号:US17766361

    申请日:2020-10-06

    摘要: A method and apparatus for clearing a retransmission resource based on hybrid automatic repeat request acknowledgment (HARQ-ACK) in a wireless communication system is provided. A first wireless device configured to operate in a wireless communication system transmits, to a second wireless device, a data unit by using a first resource in a hybrid automatic repeat request (HARQ) process. Upon receiving an acknowledgement (ACK) in response to the data unit, the first wireless device clears a second resource to be used for retransmission of the data unit, and flushes a buffer of the HARQ process.