Method and device for transmitting and receiving a plurality of Cooperative Awareness Message (CAM) information in a V2X system

    公开(公告)号:US12238620B2

    公开(公告)日:2025-02-25

    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:US12200684B2

    公开(公告)日:2025-01-14

    申请号:US17569214

    申请日:2022-01-05

    Abstract: Provided are a method for performing wireless communication by a first device, and an apparatus for supporting same. The method may comprise: obtaining a sidelink (SL) discontinuous reception (DRX) configuration including information related to a timer for an active time and information related to a hybrid automatic repeat request (HARQ) round trip time (RTT) timer; starting the timer for the active time; receiving, from a second device through a physical sidelink control channel (PSCCH) based on a first SL resource, a first sidelink control information (SCI) for scheduling of a physical sidelink shared channel (PSSCH) and a second SCI; and receiving, from the second device through the PSSCH based on the first SL resource, the second SCI and data. Herein, based on resource allocation information for a second SL resource being included in the first SCI, the first device may not monitor retransmission of the data from the second device in a time domain between the first SL resource and the second SL resource, and based on the resource allocation information for the second SL resource not being included in the first SCI, the HARQ RTT timer included in the SL DRX configuration may be started by the first device.

    METHOD AND DEVICE FOR PERFORMING SIDELINK RETRANSMISSION OPERATION IN SL DRX ON-DURATION IN NR V2X

    公开(公告)号:US20230413377A1

    公开(公告)日:2023-12-21

    申请号:US18036282

    申请日:2021-11-10

    CPC classification number: H04W76/28 H04W76/23

    Abstract: Proposed is an operation method of a first device (100) in a wireless communication system. The method may comprise the steps of: establishing a first PC5-radio resource control (RRC) connection with a second device (200); establishing a second PC5-RRC connection with a third device (300); starting a first sidelink (SL) discontinuous reception (DRX) timer related to an active time of a first SL DRX configuration related to the first PC5-RRC connection; starting a second SL DRX timer related to an active time of a second SL DRX configuration related to the second PC5-RRC connection; receiving a medium access control (MAC) control element (CE) related to the first SL DRX configuration from the second device (200); and stopping the first SL DRX timer on the basis of the MAC CE.

    METHOD AND APPARATUS FOR PERFORMING COMMUNICATION BASED ON UNLICENSED BAND IN NR V2X

    公开(公告)号:US20230345507A1

    公开(公告)日:2023-10-26

    申请号:US18095193

    申请日:2023-01-10

    CPC classification number: H04W72/25 H04W72/12 H04W76/28

    Abstract: Provided are a method for performing wireless communication by a first device, and an apparatus for supporting same. The method may comprise: obtaining configuration information including at least one of information related to a fixed frame period (FFP) and information related to an FFP offset; and monitoring a physical sidelink control channel (PSCCH) or a physical sidelink shared channel (PSSCH) from a second device during a first time within a first FFP determined by the configuration information, wherein the PSCCH is a channel carrying first sidelink control information (SCI) for scheduling of the PSSCH and second SCI, wherein the PSSCH is a channel carrying the second SCI and data, and wherein, based on a failure to monitor the PSCCH from the second device during the first time within the first FFP, the monitoring of the PSCCH from the second device is skipped during a second time outside the first time within the first FFP.

    Method and apparatus for performing wireless communication related to SL DRX in NR V2X

    公开(公告)号:US11743968B2

    公开(公告)日:2023-08-29

    申请号:US18056090

    申请日:2022-11-16

    CPC classification number: H04W76/28 H04W72/12 H04W80/02

    Abstract: Proposed are a method by which a first device performs wireless communication, and an apparatus supporting same. For example, the first device may obtain a sidelink discontinuous reception configuration including information related to an SL DRX timer. For example, the first device may obtain information related to a scheduling request configuration for a SL channel state information reporting medium access control control element (CE). For example, the first device may determine the SR configuration for the SL CSI reporting MAC CE as an SR configuration for an SL DRX command MAC CE. For example, the first device may transmit, to the base station, an SR for requesting a resource for the SL DRX command MAC CE, based on the SR configuration for the SL CSI reporting MAC CE. For example, the first device may transmit, to the second device, the SL DRX command MAC CE, based on the resource.

    SIDELINK DRX-ASSOCIATED OPERATION METHOD FOR UE IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20220418036A1

    公开(公告)日:2022-12-29

    申请号:US17776019

    申请日:2020-11-12

    Abstract: An embodiment is a sidelink-associated operation method for a transmission user equipment (UE) in a wireless communication system, the method comprising the steps of: determining a long DRX cycle and a short DRX cycle; and on the basis of the long DRX cycle, the short DRX cycle, and a first offset, monitoring control information in an on-duration, wherein the first offset is determined as a sum of k times (wherein k is an integer) a value associated with a sidelink service and a second offset associated with the sidelink service, and the long DRX cycle and the short DRX cycle are determined as m times and n times (wherein m and n are integers) the value associated with the sidelink service, respectively.

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