SCG FAILURE HANDLING WITH CONDITIONAL PSCELL CONFIGURATION

    公开(公告)号:US20220338089A1

    公开(公告)日:2022-10-20

    申请号:US17639859

    申请日:2020-11-09

    Abstract: A method and apparatus for a secondary cell group (SCG) failure handling with a conditional primary secondary cell (PSCell) configuration in a wireless communication system is provided. A wireless device evaluates a conditional change of PSCell based on a mobility command for the conditional change of the PSCell. Upon detecting a failure on a secondary cell group (SCG), the wireless device stops evaluating the conditional change of the PSCell, and transmits, to the network, information on the failure on the SCG.

    METHOD AND APPARATUS FOR MEASUREMENT REPORTING DURING A CONDITIONAL PCELL HANDOVER IN A WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20220256426A1

    公开(公告)日:2022-08-11

    申请号:US17617501

    申请日:2020-07-23

    Abstract: A method and apparatus for measurement reporting during a conditional PCell handover in a wireless communication system is provided. A wireless device receives, from the source cell, a handover command including a handover condition for a target cell. A wireless device performs measurement on at least one of neighbor cells. A wireless device transmits, to the target cell, a handover complete message based on that the handover condition for the target cell is met, wherein the handover complete message includes results of the measurement on the at least one of the neighbor cells.

    METHOD AND APPARATUS FOR HANDLING OF MISSING REFERENCE SIGNAL ON UNLICENSED FREQUENCY IN A WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20220086784A1

    公开(公告)日:2022-03-17

    申请号:US17310951

    申请日:2020-04-28

    Abstract: A method and apparatus for handling of missing reference signal on unlicensed frequency in a wireless communication system is provided. The upper layer of the wireless device receives, from a lower layer of the wireless device, a first indication related to a first reference signal from a network, wherein the first indication is one of In-Sync (IS) indication or Out-of-Sync (OOS) indication. The upper layer of the wireless device starts a timer. The upper layer of the wireless device receives, from the lower layer of the wireless device, a second indication while the timer is running, wherein the second indication informs that a second reference signal from the network is missing. The upper layer of the wireless device increases a counter related to the first indication upon receiving the second indication.

    RADIO LINK MONITORING
    195.
    发明申请

    公开(公告)号:US20210351886A1

    公开(公告)日:2021-11-11

    申请号:US17269967

    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

    公开(公告)号:US20210314828A1

    公开(公告)日:2021-10-07

    申请号:US17268067

    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.

    METHOD FOR PERFORMING A HANDOVER PROCEDURE IN A WIRELESS COMMUNICATION SYSTEM AND A DEVICE THEREFOR

    公开(公告)号:US20210297909A1

    公开(公告)日:2021-09-23

    申请号:US16622574

    申请日:2018-06-15

    Abstract: The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for receiving handover assistance information including a list of one or more candidate target cells; initiating a first random access procedure to a first candidate target cell of the one or more candidate target cells and a first timer for the first candidate target cell, when the first candidate target cell satisfies a handover condition; and stopping trying to connect to the first candidate target cell when any one of at least the following events occurs: (i) the first timer expires for the first candidate target cell, and (ii) a number of random access trials to the first candidate target cell reaches a maximum number.

    METHOD FOR SELECTING BWP AND DEVICE SUPPORTING THE SAME

    公开(公告)号:US20210274377A1

    公开(公告)日:2021-09-02

    申请号:US17253098

    申请日:2019-06-20

    Abstract: Provided are a method of selecting BWP and a device supporting the method. According to one embodiment of the present invention, the method includes: configuring multiple bandwidth parts (BWPs) for a cell; activating a first BWP among the multiple BWPs; acquiring information on congestion of at least one of the multiple BWPs; and switching to a second BWP among the multiple BWPs from the first BWPs, based on the acquired information on congestion.

    DELAYED CELL GROUP CHANGE PROCEDURE
    199.
    发明申请

    公开(公告)号:US20210258844A1

    公开(公告)日:2021-08-19

    申请号:US17270598

    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 ACCESS CONTROL AND DEVICE SUPPORTING THE SAME

    公开(公告)号:US20210235512A1

    公开(公告)日:2021-07-29

    申请号:US16972245

    申请日:2019-08-08

    Abstract: Provided are a method of access control and a device supporting the method. According to an embodiment of the present disclosure, the method includes: selecting access information for an access to a cell; determining channel access priority class (CAPC) mapped to the selected access information; performing a listen-before-talk (LBT) procedure based on the CAPC; and transmitting an access request to the cell, when a result of the LBT is successful. According to another embodiment of the present disclosure, the method includes: determining channel access priority class (CAPC) mapped to a control message; performing a listen-before-talk (LBT) procedure based on the CAPC; and transmitting the control message, when a result of the LBT is successful.

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