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

    IPC分类号: H04W76/28 H04W76/23

    CPC分类号: H04W76/28 H04W76/23

    摘要: 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

    IPC分类号: H04W72/25 H04W72/12 H04W76/28

    CPC分类号: H04W72/25 H04W72/12 H04W76/28

    摘要: 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

    IPC分类号: H04W76/28 H04W72/12 H04W80/02

    CPC分类号: H04W76/28 H04W72/12 H04W80/02

    摘要: 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

    IPC分类号: H04W76/28

    摘要: 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.

    V2X communication apparatus and geo-networking transmission method

    公开(公告)号:US11258548B2

    公开(公告)日:2022-02-22

    申请号:US16632232

    申请日:2017-07-18

    摘要: Disclosed is a geo-networking transmission method of a V2X communication apparatus. The geo-networking transmission method according to an embodiment of the present disclosure includes receiving a geo-networking packet; identifying whether the received geo-networking packet is a packet which is prestored in a buffer; determining whether to perform a forwarding progress of the geo-networking packet, when the received geo-networking packet is not a prestored packet; storing the received geo-networking packet in the buffer and starting a timer, when the forwarding progress is determined; and transmitting the geo-networking packet, when the timer expires.

    V2X communication device and geo-networking transmission method

    公开(公告)号:US11212730B2

    公开(公告)日:2021-12-28

    申请号:US16637655

    申请日:2017-08-09

    摘要: A geo-networking transmission method of a V2X communication apparatus is disclosed. The geo-networking transmission method according to an embodiment of the present disclosure includes configuring location information, wherein the location information includes information on a V2X communication apparatus executing a geo-networking protocol, selecting a forwarder candidate among neighboring V2X communication apparatuses included in the location table, determining a forwarder based on a distance between the forwarder candidate and a destination, and setting an address of the determined forwarder as a link layer address of a next hop, and transmitting a geo-networking packet based on the link layer address.