METHOD AND APPARATUS FOR PERFORMING RETRANSMISSION IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:WO2021066407A1

    公开(公告)日:2021-04-08

    申请号:PCT/KR2020/013092

    申请日:2020-09-25

    Abstract: The present disclosure relates to performing a retransmission in wireless communications. According to an embodiment of the present disclosure, a method performed by a first wireless device in a wireless communication system comprises: reserving a set of resources comprising at least a first resource for an initial transmission and a second resource for a retransmission; creating a data unit based on the first resource and the second resource; performing the initial transmission of the data unit to a second wireless device by using the first resource; determining whether to reserve a resource for the retransmission of the data unit based on at least one of a congestion level and/or a priority of the data unit; removing the second resource and reserving a third resource as the resource for the retransmission of the data unit; and performing the retransmission of the data unit by using the third resource to the second wireless device.

    METHOD AND APPARATUS FOR HANDLING BEARERS BASED ON CONGESTION LEVEL IN A WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:WO2020159287A1

    公开(公告)日:2020-08-06

    申请号:PCT/KR2020/001493

    申请日:2020-01-31

    Abstract: A method and apparatus for handling bearers based on congestion level in a wireless communication system is provided. A wireless device configures at least two lower entities associated with an upper entity for multiple frequencies. A wireless device selects at least one lower entity among the at least two lower entities based on a congestion level of at least one frequency among the multiple frequencies. A wireless device submits a data unit to the at least one lower entity based on the selection. A wireless device performs transmission of the data unit.

    METHOD AND APPARATUS FOR MOBILITY MANAGEMENT IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:WO2020149650A1

    公开(公告)日:2020-07-23

    申请号:PCT/KR2020/000760

    申请日:2020-01-16

    Abstract: The present disclosure relates to mobility management in wireless communications. According to an embodiment of the present disclosure, a method performed by a wireless device in a wireless communication system comprises: receiving mobility commands of candidate cells, mobility conditions for the candidate cells, and information for a timer; determining a first target cell among the candidate cells which satisfies a mobility condition for the first target cell; after determining the first target cell, determining a second target cell among the candidate cells which satisfies a mobility condition for the second target cell while the timer is running, wherein a priority of the second target cell is higher than a priority of the first target cell; and performing a mobility to the second target cell based on a mobility command of the second target cell.

    RADIO LINK MONITORING
    74.
    发明申请

    公开(公告)号:WO2020071851A1

    公开(公告)日:2020-04-09

    申请号:PCT/KR2019/013033

    申请日:2019-10-04

    Abstract: Provided are a method for radio link monitoring. According to an embodiment of the present disclosure, the method includes detecting, by a physical layer of the wireless device, that a reference signal (RS) on an unlicensed frequency is not transmitted in a current period, considering, by the physical layer, that a radio link status of the current period is identical to a radio link status of a previous period, and informing, by the physical layer to a radio resource control (RRC) layer of the wireless device, the radio link status of the current period in the current period.

    SIGNALING DELAY HANDLING FOR HANDOVER
    75.
    发明申请

    公开(公告)号:WO2020067826A1

    公开(公告)日:2020-04-02

    申请号:PCT/KR2019/012702

    申请日:2019-09-30

    Abstract: A method and apparatus for handling signaling delay for handover is provided. A wireless device transmits a measurement report based on a first event for a first cell, receives a handover command which commands a handover to the first cell, and checks validity of the handover command based on the first event for the first cell and/or a second event for a second cell other than the first cell.

    DELAYED CELL GROUP CHANGE PROCEDURE
    76.
    发明申请

    公开(公告)号:WO2020067825A1

    公开(公告)日:2020-04-02

    申请号:PCT/KR2019/012701

    申请日:2019-09-30

    Abstract: A method and apparatus for delayed Cell Group (CG) change procedure in a wireless communication system is provided. A wireless device triggers a measurement reporting based on a first event for a first cell, receives a cell group (CG) change command which commands CG change related to the first cell, and determines whether the CG change command is valid or not based on the first event for the first cell and/or a second event for a second cell other than the first cell.

    METHOD FOR PERFORMING CELL RESELECTION AND DEVICE SUPPORTING THE SAME

    公开(公告)号:WO2019194649A1

    公开(公告)日:2019-10-10

    申请号:PCT/KR2019/004090

    申请日:2019-04-05

    Abstract: Provided are a method of performing cell reselection and a device supporting the method. According to one embodiment of the present invention, the method includes: performing data transmission or data reception while the UE is in RRC IDLE state or RRC INACTIVE state; measuring a serving cell quality; and starting a cell reselection prohibit timer when the quality of the serving cell is better than a threshold, wherein a cell reselection procedure is prohibited while the cell reselection prohibit timer is running.

    METHOD FOR CHANGING STATUS OF WUS OPERATION AND DEVICE SUPPORTING THE SAME

    公开(公告)号:WO2019160271A1

    公开(公告)日:2019-08-22

    申请号:PCT/KR2019/001537

    申请日:2019-02-07

    Abstract: Provided are a method of changing status of WUS operation and a device supporting the method. According to one embodiment of the present invention, the method includes: receiving system information for enabling a wake up signal (WUS) operation; enabling the WUS operation; receiving a WUS to monitor a paging occasion; receiving, in the paging occasion, control information informing that the WUS operation is disabled; disabling the WUS operation based on the control information; and monitoring a next paging occasion for a paging based on the disabled WUS operation.

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