METHOD AND APPARATUS FOR TRANSMITTING RESPONSE MESSAGE IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:WO2021162507A1

    公开(公告)日:2021-08-19

    申请号:PCT/KR2021/001880

    申请日:2021-02-15

    Abstract: The present disclosure relates to transmitting a response message in wireless communications. According to an embodiment of the present disclosure, a method performed by a wireless device served by a master node (MN) and a secondary node (SN) in a dual connectivity (DC) in a wireless communication system comprises: receiving, from the MN via a signalling radio bearer 1 (SRB1), a conditional primary secondary cell change (CPC) command related to a radio resource control (RRC) reconfiguration message of which a RRC transaction identifier (ID) is set; performing a CPC execution based on that a CPC condition in the CPC command is satisfied; and transmitting, to the MN, an RRC message of which no RRC transaction ID is set based on the CPC execution, wherein the RRC message comprises a RRC reconfiguration complete message of which the RRC transaction ID is set.

    METHOD AND APPARATUS FOR HANDLING TIMER RELATED TO RADIO LINK FAILURE IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:WO2021091338A1

    公开(公告)日:2021-05-14

    申请号:PCT/KR2020/015605

    申请日:2020-11-09

    Inventor: KIM, Sangwon

    Abstract: The present disclosure relates to handling a timer related to a radio link failure (RLF) 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 a conditional mobility command comprising a mobility execution condition for a target cell; detecting that an entering condition of the mobility execution condition is satisfied while a timer is running, wherein a radio link failure (RLF) is detected upon an expiry of the timer; stopping the timer based on detecting that the entering condition of the mobility execution condition is satisfied; and performing a mobility to the target cell based on that the entering condition is satisfied for at least a time to trigger (TTT) related to the mobility execution condition.

    METHOD FOR PERFORMING ACCESS CONTROL AND DEVICE SUPPORTING THE SAME

    公开(公告)号:WO2020032628A1

    公开(公告)日:2020-02-13

    申请号:PCT/KR2019/009986

    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 invention, 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 invention, 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.

    METHOD AND APPARATUS FOR PERFORMING CONDITIONAL CELL CHANGE BASED ON CHANNEL OCCUPANCY IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:WO2019245304A1

    公开(公告)日:2019-12-26

    申请号:PCT/KR2019/007450

    申请日:2019-06-20

    Abstract: A method and apparatus for performing a conditional mobility based on a congestion level in a wireless communication system is provided. That is, the congestion level may be considered as mobility triggering condition of the conditioal mobility. A wireless device performs a congestion level measurement, and receives a conditional mobility configuration associated with multiple target cells from a serving node. The conditional mobility configuration includes a threshold for the congestion level. The wireless device performs a mobility towards one target cell among the multiple target cells based on a result of the congestion level measurement and the threshold for the congestion level.

    METHOD FOR SELECTING BWP AND DEVICE SUPPORTING THE SAME

    公开(公告)号:WO2019245297A1

    公开(公告)日:2019-12-26

    申请号:PCT/KR2019/007439

    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.

    METHOD AND APPARATUS FOR ACTIVATING BANDWIDTH PART

    公开(公告)号:WO2019059729A1

    公开(公告)日:2019-03-28

    申请号:PCT/KR2018/011298

    申请日:2018-09-21

    CPC classification number: H04L5/001 H04L5/0098 H04W74/0833

    Abstract: Provided are a method for activating, by a user equipment (UE), a bandwidth part in a wireless communication system. The method may include: activating a first bandwidth part among multiple bandwidth parts; when a problem of the first bandwidth part is detected, deactivating the first bandwidth part; activating a second bandwidth part among the multiple bandwidth parts; and performing uplink transmission to a base station via the activated second bandwidth part.

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