METHOD AND APPARATUS FOR TRANSMITTING DATA UNIT IN RRC INACTIVE STATE BY USER EQUIPMENT IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20220095391A1

    公开(公告)日:2022-03-24

    申请号:US17469341

    申请日:2021-09-08

    Abstract: A method for performing data transmission by a user equipment (UE) in a wireless communication system is disclosed. The method comprises steps of receiving a message indicating a change of a Radio resource control (RRC) state from a RRC CONNECTED state to a RRC INACTIVE state, wherein the message includes information related to a configured grant (CG) and a threshold; if a time gap between a current time and an uplink grant occasion associated with the configured grant is larger than or equal to the threshold, triggering a random access (RA) procedure for the data transmission; and performing the data transmission based on the RA procedure in the RRC INACTIVE state, wherein, if the time gap is smaller than the threshold, the data transmission is performed based on the uplink grant occasion associated with the configured grant.

    METHOD AND APPARATUS FOR HANDLING RLC STUCK PROBLEM IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20220094391A1

    公开(公告)日:2022-03-24

    申请号:US17310491

    申请日:2020-03-11

    Inventor: Seungjune YI

    Abstract: The present invention relates to a method of processing signals by a Packet Data Convergence Protocol (PDCP) entity associated with two or more Radio Link Control (RLC) entities of a user equipment (UE) in a wireless communication system. In particular, the method includes the steps of: detecting a RLC stuck problem in one RLC entity of the two or more RLC entities; transmitting an indicator related to the RLC stuck problem to a network; and resetting the one RLC entity having the RLC stuck problem, wherein the RLC stuck problem comprises a difference between the PDCP sequence number (SN) of PDCP Protocol Data Unit (PDU) transmitted by the one RLC entity and the PDCP SN of the PDCP PDU transmitted by another RLC entities being larger than a threshold value.

    METHOD AND APPARATUS FOR TRANSMITTING DATA UNIT IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20210385846A1

    公开(公告)日:2021-12-09

    申请号:US17285757

    申请日:2019-09-18

    Abstract: The present disclosure relates to a method for transmitting a protocol data unit (PDU) by a transmission end in a wireless communication system. In particular, the method includes receiving an uplink (UL) grant from a network; when the UL grant can accommodate all of pending data for a first logical channel but is not sufficient to additionally accommodate a buffer status report (BSR), including the pending data for the first logical channel to the PDU with canceling the BSR; and transmitting the PDU to the network, wherein the UL grant cannot additionally accommodate all of pending data for a second logical channel

    UPLINK TRANSMISSION BASED ON UL-GRANT ASSOCIATED WITH SPECIFIC LOGICAL CHANNEL PRIORITY

    公开(公告)号:US20210219310A1

    公开(公告)日:2021-07-15

    申请号:US17217303

    申请日:2021-03-30

    Abstract: Method and apparatus for a user equipment (UE) transmitting uplink signals in a wireless communication system are disclosed. For this end, the UE, receiving first uplink grant information and logical channel priority information associated with the first uplink grant, constructs a first data unit including data from one or more radio bearers with first logical channel priority corresponding to the logical channel priority information. And, the UE transmits the first data unit to a network.

    METHOD FOR HANDLING FOR BANDWIDTH PART OPERATION IN WIRELESS COMMUNICATION SYSTEM AND A DEVICE THEREFOR

    公开(公告)号:US20210195617A1

    公开(公告)日:2021-06-24

    申请号:US17191016

    申请日:2021-03-03

    Abstract: The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for handling for Bandwidth Part operation in wireless communication system, the method comprising: starting a timer related to a downlink (DL) bandwidth part (BWP), when an active BWP for a serving cell is switched to the DL BWP; wherein DL semi-persistent scheduling (SPS) resources are configured on the DL BWP and uplink (UL) SPS resources are configured on a UL BWP related with the DL BWP; transmitting UL data on one of the UL SPS resources or receiving DL data on one of the DL SPS resources; and restarting the timer related to the DL BWP when the UL data is transmitted on the UL SPS resource or the DL data is received in the DL SPS resource.

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