SIDELINK COMMUNICATION RELAY METHOD AND APPARATUS THEREFOR

    公开(公告)号:US20230363040A1

    公开(公告)日:2023-11-09

    申请号:US17975374

    申请日:2022-10-27

    CPC classification number: H04W76/27 H04W92/18

    Abstract: The present disclosure relates to a method of relaying, by a second user equipment (UE), sidelink communication between a first UE and a third UE in a wireless communication system and apparatus therefor. To this end, the second UE may: receive a first sidelink radio resource control (RRC) reconfiguration message from the first UE; transmit a first sidelink RRC reconfiguration complete message to the first UE in response to the first sidelink RRC reconfiguration message; transmit a second sidelink RRC reconfiguration message to the third UE based on the transmission of the first sidelink RRC reconfiguration complete message; monitor a second sidelink RRC reconfiguration result message to be received from the third UE during a running period of a first timer running after the transmission of the second sidelink RRC reconfiguration message; and transmit an RRC connection result notification message to the first UE based on the monitoring of the second sidelink RRC reconfiguration result message.

    METHOD AND APPARATUS FOR PERFORMING RADIO COMMUNICATION RELATED TO MAC RESET IN NR V2X

    公开(公告)号:US20230354448A1

    公开(公告)日:2023-11-02

    申请号:US18140166

    申请日:2023-04-27

    CPC classification number: H04W76/14 H04W76/28 H04W92/18

    Abstract: A method for performing wireless communication by a first device and an apparatus supporting the same are proposed. For example, the first device may obtain an SL DRX configuration including information related to an SL DRX cycle and information related to a timer for active time. For example, the timer for active time may include at least one of an SL DRX on-duration timer or an SL DRX inactivity timer. For example, the first device may trigger SL DRX command MAC CE reporting related to the PC5-RRC connection. For example, the first device may cancel the triggered SL DRX command MAC CE reporting, based on an MAC reset for the PC5-RRC connection being requested.

    SIDELINK COMMUNICATION METHOD CONSIDERING HEIGHT INFORMATION AND APPARATUS THEREFOR

    公开(公告)号:US20230328732A1

    公开(公告)日:2023-10-12

    申请号:US17896513

    申请日:2022-08-26

    CPC classification number: H04W72/0406 H04L1/1864

    Abstract: A sidelink communication method considering height information and an apparatus therefor are provided. A method of transmitting data by a first user equipment (UE) to a second UE in a wireless communication system includes transmitting a physical sidelink control channel (PSCCH) including first sidelink control information (SCI) to the second UE, transmitting a physical sidelink shared channel (PSSCH) including second SCI related to the first SCI to the second UE, and receiving a physical sidelink feedback channel (PSFCH) for the PSSCH from the second UE. The second SCI includes control information about a hybrid automatic repeat request (HARQ) operation, and the control information about the HARQ operation includes control information about a height.

    Method and device for configuring SL HARQ RTT timer in NR V2X

    公开(公告)号:US11770840B2

    公开(公告)日:2023-09-26

    申请号:US18051265

    申请日:2022-10-31

    CPC classification number: H04W72/25 H04L1/1812 H04W72/12 H04W76/28

    Abstract: Provided are a method for performing wireless communication by a first device, and a device for supporting same. The method may comprise: obtaining a sidelink (SL) discontinuous reception (DRX) configuration including a value of a SL DRX retransmission timer; receiving, from a second device through a physical sidelink control channel (PSCCH), first sidelink control information (SCI) for scheduling of second SCI and a physical sidelink shared channel (PSSCH); receiving, from the second device through the PSSCH, the second SCI and data; determining a value of a SL DRX hybrid automatic repeat request (HARD) round trip time (RTT) timer as zero, based on that information related to a next retransmission resource is not included in the first SCI; and starting the SL DRX retransmission timer.

    Cancelling SL CSI reporting in a wireless communication system

    公开(公告)号:US11722923B2

    公开(公告)日:2023-08-08

    申请号:US17963596

    申请日:2022-10-11

    CPC classification number: H04W24/10 H04W76/15 H04W92/18

    Abstract: A method and/or an apparatus for cancelling sidelink (SL) channel state information (CSI) reporting in a wireless communication system is provided. A first wireless device establishes a first PC5-Radio Resource Control (RRC) connection with a second wireless device and a second PC5-RRC connection with a third wireless device. A first wireless device triggers the first SL CSI reporting for a first pair of a Source ID for the first wireless device and a Destination ID for the second wireless device, wherein the first pair is corresponding to the first PC5-RRC connection. A first wireless device generates a MAC CE for the first SL CSI reporting. A first wireless device cancels the triggered first SL CSI reporting for the first pair.

    Method and apparatus for transmitting SL HARQ feedback in NR V2X

    公开(公告)号:US11632220B2

    公开(公告)日:2023-04-18

    申请号:US17705210

    申请日:2022-03-25

    Abstract: According to an embodiment of the present disclosure, provided is a method for performing wireless communication by a first apparatus. The method may comprise: obtaining sidelink (SL) discontinuous reception (DRX) configuration including information related to an active time of a second apparatus, receiving, from a base station, first information related to a first SL resource and second information related to an uplink (UL) resource, and transmitting, to the base station, SL hybrid automatic repeat request (HARQ) feedback information on the UL resource based on a time domain of the first SL resource not being included within the active time of the second apparatus. The SL HARQ feedback information may be SL HARQ acknowledge (ACK) information.

    Method and apparatus for transmission prioritization in wireless communication system

    公开(公告)号:US11564239B2

    公开(公告)日:2023-01-24

    申请号:US17643800

    申请日:2021-12-10

    Abstract: The present disclosure relates to transmission prioritization in wireless communications. According to an embodiment of the present disclosure, a method performed by a wireless device in a wireless communication system comprises: configuring a threshold; creating a media access control (MAC) protocol data unit (MAC PDU) for sidelink comprising a MAC control element (CE); setting a priority value to the MAC CE; identifying a transmission of the MAC PDU for sidelink and an uplink transmission to be performed; determining that the transmission of the MAC PDU for sidelink and the uplink transmission are not able to be performed simultaneously; determining that the priority value of the MAC CE is lower than the threshold; prioritizing the transmission of the MAC PDU for sidelink over the uplink transmission; and performing the transmission of the MAC PDU for sidelink that is prioritized over the UL transmission.

    OPERATING METHOD OF RELAY UE IN SIDELINK IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20220361258A1

    公开(公告)日:2022-11-10

    申请号:US17733567

    申请日:2022-04-29

    Abstract: A sidelink relay related operating method of a relay user equipment (UE) in a wireless communication system includes receiving a first message including a first cause value from a remote UE by the relay UE, configuring a second cause value based on the first cause value by the relay UE, and attempting RRC connection to a base station (BS) by transmitting a second message including the second cause value by the relay UE, and in this case, the first message is related to trigger of attempting RRC connection, and whether configuration of the second cause value of the relay UE is dependent upon the first cause value is determined based on a type of the first cause value.

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