Apparatus and method for uplink synchronizing in multiple component carrier system

    公开(公告)号:US10582460B2

    公开(公告)日:2020-03-03

    申请号:US16424258

    申请日:2019-05-28

    IPC分类号: H04W56/00 H04W36/00

    摘要: A user equipment (UE) of re-organizing a timing advance group (TAG) is provided. The UE includes: a receiving unit for receiving, from a serving base station, secondary serving cell (SCell) configuration information which includes a first field and a second field, the first field including an ScellIndex of an SCell to indicate a removal of the SCell, the second field including at least one of the ScellIndex to indicate an addition of the SCell and a TAG ID indicating a TAG of the SCell, and a radio resource control (RRC) processing unit for performing the addition of the SCell after performing the removal of the SCell from one or more SCells configured in the UE, and for reorganizing the TAG by including the SCell in the TAG.

    Apparatus and method for uplink synchronizing in multiple component carrier system

    公开(公告)号:US09769776B2

    公开(公告)日:2017-09-19

    申请号:US15338993

    申请日:2016-10-31

    IPC分类号: H04W56/00 H04W36/00

    摘要: A user equipment (UE) of re-organizing a timing advance group (TAG) is provided. The UE includes: a receiving unit for receiving, from a serving base station, secondary serving cell (SCell) configuration information which includes a first field and a second field, the first field including an ScellIndex of an SCell to indicate a removal of the SCell, the second field including at least one of the ScellIndex to indicate an addition of the SCell and a TAG ID indicating a TAG of the SCell, and a radio resource control (RRC) processing unit for performing the addition of the SCell after performing the removal of the SCell from one or more SCells configured in the UE, and for reorganizing the TAG by including the SCell in the TAG.

    Apparatus and method for transmitting/receiving activation indicator regarding component carrier in wireless communication system

    公开(公告)号:US10299251B2

    公开(公告)日:2019-05-21

    申请号:US15206508

    申请日:2016-07-11

    摘要: A method for supporting activation/deactivation of serving cells by a base station (BS) in a wireless communication system provides decreased overhead and decreased power consumption for a user equipment (UE). The method includes configuring M supportable serving cells in the UE, configuring an indicator indicating activation/deactivation of each of the M serving cells, configuring a medium access control (MAC) message which includes a MAC control element (CE) and a logical channel identifier (LCID), the MAC CE including the indicator configured for each of the M serving cells and having a length corresponding to an integer multiple of 8 bits, the LCID indicating that the MAC CE includes the indicator indicating activation/deactivation of each serving cell, and transmitting the configured MAC message to the UE. Accordingly, a control channel or data channel regarding a component carrier is selectively received depending on whether the component carrier is activated.

    APPARATUS AND METHOD FOR UPLINK SYNCHRONIZING IN MULTIPLE COMPONENT CARRIER SYSTEM

    公开(公告)号:US20180317187A1

    公开(公告)日:2018-11-01

    申请号:US15997976

    申请日:2018-06-05

    IPC分类号: H04W56/00 H04W36/00

    摘要: A user equipment (UE) of re-organizing a timing advance group (TAG) is provided. The UE includes: a receiving unit for receiving, from a serving base station, secondary serving cell (SCell) configuration information which includes a first field and a second field, the first field including an ScellIndex of an SCell to indicate a removal of the SCell, the second field including at least one of the ScellIndex to indicate an addition of the SCell and a TAG ID indicating a TAG of the SCell, and a radio resource control (RRC) processing unit for performing the addition of the SCell after performing the removal of the SCell from one or more SCells configured in the UE, and for reorganizing the TAG by including the SCell in the TAG.

    APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING ACTIVATION INDICATOR REGARDING COMPONENT CARRIER IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20190274129A1

    公开(公告)日:2019-09-05

    申请号:US16418708

    申请日:2019-05-21

    摘要: A method for supporting activation/deactivation of serving cells by a base station (BS) in a wireless communication system provides decreased overhead and decreased power consumption for a user equipment (UE). The method includes configuring M supportable serving cells in the UE, configuring an indicator indicating activation/deactivation of each of the M serving cells, configuring a medium access control (MAC) message which includes a MAC control element (CE) and a logical channel identifier (LCID), the MAC CE including the indicator configured for each of the M serving cells and having a length corresponding to an integer multiple of 8 bits, the LCID indicating that the MAC CE includes the indicator indicating activation/deactivation of each serving cell, and transmitting the configured MAC message to the UE. Accordingly, a control channel or data channel regarding a component carrier is selectively received depending on whether the component carrier is activated.