Methods and apparatuses for handling uplink (re)transmission in NR-U

    公开(公告)号:US12021637B2

    公开(公告)日:2024-06-25

    申请号:US17990948

    申请日:2022-11-21

    摘要: A base station (BS) that includes one or more non-transitory computer-readable media storing computer-executable one or more instructions, and at least one processor coupled to the one or more non-transitory computer-readable media is provided. The at least one processor is configured to execute the computer-executable instructions to cause the BS to transmit a dynamic grant to a user equipment (UE) for scheduling a first uplink (UL) resource and a second UL resource, and receive a first Medium Access Control (MAC) protocol data unit (PDU) from the UE via the second UL resource in a case that transmission of the first MAC PDU to the BS via the first UL resource has failed and the second UL resource is available for transmitting the first MAC PDU. The first UL resource starts before the second UL resource in time domain, and the second UL resource is indicated for a new transmission.

    Methods and apparatuses for handling retransmission on configured uplink grant resources

    公开(公告)号:US11632197B2

    公开(公告)日:2023-04-18

    申请号:US17038417

    申请日:2020-09-30

    摘要: A user equipment (UE) includes a processor coupled to the one or more non-transitory computer-readable media containing computer-executable instructions embodied therein. The processor is configured to execute the computer-executable instructions to determine a transmission of a Medium Access Control (MAC) protocol data unit (PDU) using a first uplink (UL) resource associated with a first configured grant (CG) configuration has not been successfully performed, the first UL resource being associated with a first hybrid automatic repeat request (HARQ) process, and the MAC PDU being obtained for the first HARQ process; receive a second CG configuration associated with a second UL resource for another transmission, the second UL resource being associated with a second HARQ process; and transmit the MAC PDU on the second UL resource when it is determined that the second UL resource is suitable for transmitting the MAC PDU.

    Method and user equipment for small data transmission

    公开(公告)号:US11617223B2

    公开(公告)日:2023-03-28

    申请号:US17217123

    申请日:2021-03-30

    IPC分类号: H04W76/27 H04W76/36 H04W72/14

    摘要: A method and a User Equipment (UE) for small data transmission are provided. The method includes receiving a Radio Resource Control (RRC) release message; measuring at least one Downlink (DL) Reference Signal (RS) to obtain a measurement result; selecting a particular Configure Grant (CG) resource for small data transmission according to the measurement result; determining whether a Timing Advance (TA) value for the particular CG resource is valid for small data transmission according to (i) an amount of Reference Signal Received Power (RSRP) change of a DL RS associated with the particular CG resource and (ii) whether a TA-related timer is running; and performing small data transmission on the particular CG resource after determining that the TA value is valid.

    Method and apparatus for handling random access failures in RRC inactive state

    公开(公告)号:US12114390B2

    公开(公告)日:2024-10-08

    申请号:US17739505

    申请日:2022-05-09

    摘要: A method performed by a user equipment (UE) for wireless communication is provided. The method includes initiating a random access (RA)-based small data transmission (SDT) procedure while the UE is in a radio resource control (RRC) inactive state; starting a timer while the UE is in the RRC inactive state after initiating the RA-based SDT procedure; initiating an RA procedure; determining whether an RA problem associated with the RA procedure has occurred while the timer is running; and in response to determining that the RA problem of the RA procedure has occurred while the timer is running, transitioning from the RRC inactive state to an RRC idle state.

    METHOD AND NODE OF SEARCH SPACE SET GROUP MONITORING

    公开(公告)号:US20230141378A1

    公开(公告)日:2023-05-11

    申请号:US17978131

    申请日:2022-10-31

    IPC分类号: H04W72/04

    CPC分类号: H04W72/042

    摘要: A method and a node of search space set group (SSSG) monitoring are provided. The method includes: performing a bandwidth part (BWP) switching from a first BWP to a second BWP during a physical downlink control channel (PDCCH) adaptation time period in response to a bwp-InactivityTimer expiration; and starting monitoring a default SSSG in the second BWP in response to the default SSSG being configured.