SIDELINK RESOURCE ALLOCATION AND MAC RESET

    公开(公告)号:US20230085465A1

    公开(公告)日:2023-03-16

    申请号:US17799841

    申请日:2021-04-09

    Abstract: A method and apparatus for sidelink resource allocation and media access control (MAC) reset is provided. A wireless device, which is configured with network scheduled resource allocation for sidelink, sets new data indicators (NDIs) for all hybrid automatic repeat request (HARQ) process identifiers (IDs) specific to the sidelink to value 0, based on a media access control (MAC) reset being requested by an upper layer of the wireless device.

    METHOD AND APPARATUS FOR REQUESTING RETRANSMISSION RESOURCE IN NR V2X

    公开(公告)号:US20230062094A1

    公开(公告)日:2023-03-02

    申请号:US17976338

    申请日:2022-10-28

    Abstract: A method for performing wireless communication by a first device and an apparatus for supporting same are provided. The method may comprise: receiving, from a base station, information related to a first sidelink (SL) resource and information related to a first physical uplink control channel (PUCCH) resource; transmitting, to a second device, a medium access control (MAC) packet data unit (PDU) by using the first SL resource, wherein the MAC PDU includes a packet related to a logical channel for which hybrid automatic repeat request (HARQ) feedback is disabled, and wherein the MAC PDU includes no packet related to a logical channel for which HARQ feedback is enabled; determining that retransmission of the MAC PDU is required; and transmitting, to the base station, NACK information by using the first PUCCH resource based on no SL grant available for retransmission of the MAC PDU.

    METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING WIRELESS SIGNALS IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20230049784A1

    公开(公告)日:2023-02-16

    申请号:US17903776

    申请日:2022-09-06

    Abstract: A terminal according to one embodiment of the present invention may: receive first DCI including a first HARQ process ID field and a first NDI field on the basis of a first RNTI for a terminal group; receive a first PDSCH scheduled by the first DCI; receive second DCI on the basis of a second RNTI dedicated to the terminal in a state in which a data block of the first PDSCH has not been successfully decoded; and receive a second PDSCH scheduled by the second DCI, wherein a second HARQ process ID field included in the second DCI indicates the same HARQ process as the first HARQ process ID field included in the first DCI; and, on the basis of the fact that a value of a second NDI field included in the second DCI is the same as the value of the first NDI field included in the first DCI, a data block of the second PDSCH may be decoded on the assumption that the second PDSCH includes retransmission for the data block of the first PDSCH that has not been successfully decoded, notwithstanding that the second RNTI is different from the first RNTI.

    METHOD AND APPARATUS FOR OBTAINING SYSTEM INFORMATION

    公开(公告)号:US20220361087A1

    公开(公告)日:2022-11-10

    申请号:US16610280

    申请日:2018-04-30

    Abstract: The present invention is directed to a method and an apparatus for use in a wireless communication system. Specifically, the present invention is directed to a method comprising: receiving essential System Information (SI) from a first cell, the essential SI including information for acquiring an on-demand SI; requesting the on-demand SI to the first cell; if the on-demand SI is not received from the first cell in a first specific period of time after the requesting the on-demand SI to the first cell is successful, re-requesting the on-demand SI to the first cell; and if the on-demand SI is not received from the first cell in a second specific period of time after a total number of requesting the on-demand SI to the first cell reaches a maximum value, re-selecting a second cell under assumption that the first cell is a barred cell, and an apparatus therefore.

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