SIDELINK DRX TIMER-BASED POWER-SAVING METHOD AND DEVICE OF POWER-SAVING TERMINAL IN NR V2X

    公开(公告)号:US20230209535A1

    公开(公告)日:2023-06-29

    申请号:US18112404

    申请日:2023-02-21

    CPC classification number: H04W72/1263 H04W72/40 H04W24/10

    Abstract: Proposed is a method for operating a first device (100) in a wireless communication system. The method may comprise the steps of: starting a first timer related to an on-duration interval; transmitting first sidelink control information (SCI) for scheduling a first physical sidelink shared channel (PSSCH) and second SCI to a second device (200) through a physical sidelink control channel (PSCCH); transmitting the second SCI including information associated with a channel state information (CSI) request to the second device (200) through the first PSSCH; and receiving, from the second device (200), a medium access control (MAC) control element (CE) including a CSI report associated with the CSI request, on the basis of a second timer which is in operation.

    METHOD AND DEVICE FOR RLF IN NR V2X
    133.
    发明公开

    公开(公告)号:US20230189370A1

    公开(公告)日:2023-06-15

    申请号:US17926381

    申请日:2021-04-16

    Abstract: Provided are a method for a first device carrying out wireless communication, and an apparatus supporting same. The method may comprise the steps of: transmitting sidelink control information (SCI) to a second device via a physical sidelink control channel (PSCCH); transmitting data to the second device via a physical sidelink shared channel (PSSCH) which is associated with the PSCCH; determining a physical sidelink feedback channel (PSFCH) resource on the basis of a slot and subchannel associated with the PSSCH: increasing a DTX counter by one on the basis of failing to receive hybrid automatic repeat request (HARQ) feedback on the PSFCH resource; receiving, from the second device, information related to dropping the transmission of the HARQ feedback; and decreasing the DTX counter by N on the basis of the information related to dropping the transmission of the HARQ feedback. Sidelink (SL) radio link failure (RLF) may be declared on the basis that the DTX counter reaches the maximum number of DTXs, and N may be a positive integer.

    METHOD OF OPERATING A UE RELATED TO SIDELINK DRX IN A WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20220400531A1

    公开(公告)日:2022-12-15

    申请号:US17664362

    申请日:2022-05-20

    Abstract: An operation method related to sidelink of a second user equipment (UE) in a wireless communication system includes transmitting, by the second UE, assistance information including a plurality of first discontinuous reception (DRX) configuration related information to a first UE, wherein the plurality of first DRX configuration related information is transmitted to a base station (BS) by the first UE, and receiving, by the second UE, one or more second DRX configuration related information transmitted by the BS. The second DRX configuration related information is determined based on the assistance information including the plurality of first DRX configuration related information.

    METHOD AND DEVICE FOR V2X COMMUNICATION

    公开(公告)号:US20220217513A1

    公开(公告)日:2022-07-07

    申请号:US17594080

    申请日:2019-04-11

    Abstract: The present invention provides a method for transmitting a plurality of pieces of CAM information in a V2X system. More specifically, the method, which is to be performed by a vehicle, includes: a step for transmitting a first message, including first information indicating whether a plurality of pieces of CAM information can be combined, to a base station through a first interface; a step for receiving, from the base station, a second message requesting that the plurality of pieces of CAM information be combined and transmitted; a step for receiving the plurality of pieces of CAM information from nearby vehicles through a second interface; and a step for transmitting a third message including the plurality of pieces of CAM information to the base station through the first interface.

    METHOD AND APPARATUS FOR PERFORMING DRX OPERATION BASED ON RESOURCE ALLOCATION INFORMATION IN NR V2X

    公开(公告)号:US20220191851A1

    公开(公告)日:2022-06-16

    申请号:US17553405

    申请日:2021-12-16

    Abstract: Provided are a method for performing wireless communication by a first device, and an apparatus for supporting same. The method may comprise: starting a timer for an active time; receiving, from a second device through a physical sidelink control channel (PSCCH) based on a first sidelink (SL) resource, a first sidelink control information (SCI) including information related to a time domain of a second SL resource and information related to a frequency domain of the second SL resource; receiving, from the second device through a physical sidelink shared channel (PSSCH) related to the PSCCH based on the first SL resource, a second SCI and data; determining a value of a SL discontinuous reception (DRX) hybrid automatic repeat request (HARQ) round trip time (RTT) timer, based on a time interval between the first SL resource and the second SL resource; and starting the SL DRX HARQ RTT timer.

    METHOD AND APPARATUS FOR SELECTING SL RESOURCES IN NR V2X

    公开(公告)号:US20220029755A1

    公开(公告)日:2022-01-27

    申请号:US17375094

    申请日:2021-07-14

    Abstract: Provided are a method for performing wireless communication by a first device, and an apparatus for supporting same. The method may comprise: determining one or more logical channels of interest from among a plurality of logical channels; based on sidelink (SL) hybrid automatic repeat request (HARQ) feedback being enabled for at least one logical channel among the one or more logical channels of interest, allocating N SL processes, from among a plurality of SL processes for transmitting a plurality of medium access control protocol data units (MAC PDUs), to a SL resource in which a physical sidelink feedback channel (PSFCH) resource is configured; and performing HARQ feedback-based SL communication based on the N SL processes, wherein N is a positive integer.

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