METHOD AND APPARATUS FOR PERFORMING DATA TRANSMISSION WITHOUT SEQUENCE NUMBER IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20230041726A1

    公开(公告)日:2023-02-09

    申请号:US17788870

    申请日:2021-01-13

    Abstract: The present invention relates to a method of transmitting data units by a Radio Link Control (RLC) entity of a user equipment (UE) in a Radio Resource Control (RRC) INACTIVE state in a wireless communication system. Especially, the method includes the steps of transmitting at least one first data unit without the poll in the RRC INACTIVE state to a peer RLC entity; based on a number of the at least one first data unit without the poll being equal to or greater than a threshold value, shifting to a RRC CONNECTED state; transmitting a second data unit with the poll in the RRC CONNECTED state to the peer RLC entity; and receiving a status report for the at least one first data unit without the poll and the second data unit with the poll from the peer RLC entity.

    Method and apparatus for transmitting stuck indication by user equipment in wireless communication system

    公开(公告)号:US11368861B2

    公开(公告)日:2022-06-21

    申请号:US16828457

    申请日:2020-03-24

    Inventor: Seungjune Yi

    Abstract: A method for transmitting signals by a UE configured with two or more transmission paths of one radio bearer (RB) in a wireless communication system is disclosed. The method comprises detecting a stuck problem in one transmission path of the two or more transmission paths; transmitting an indicator related to the stuck problem to a network; and resetting a protocol entity of the transmission path having the stuck problem, wherein the stuck problem comprises a difference between the sequence number (SN) of the data unit transmitted by the transmission path having the stuck problem and the SN of the data unit transmitted by another transmission path being larger than a threshold.

    Method and device for transmitting data unit

    公开(公告)号:US11197187B2

    公开(公告)日:2021-12-07

    申请号:US16890100

    申请日:2020-06-02

    Abstract: In the present invention, if a transmitting device receives an activation command for a packet duplication function of a PDCP entity for a radio bearer (RB), the PDCP entity submits a PDCP protocol data unit (PDU) to each of multiple lower layer entities associated with the PDCP entity, and each of the multiple lower layer entities transmits the PDCP PDU. If the transmitting device receives a deactivation command for the packet duplication function, the PDCP entity submits the PDCP PDU to a single one of the multiple lower layer entities, and the single one of the multiple lower layer entities transmits the PDCP PDU.

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