METHOD AND APPARATUS FOR CONFIGURING DEFAULT BEAM IN WIRELESS COMMUNICATION SYSTEMS

    公开(公告)号:US20240215040A1

    公开(公告)日:2024-06-27

    申请号:US18587154

    申请日:2024-02-26

    CPC classification number: H04W72/23 H04W72/0453 H04W72/1273

    Abstract: The disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method of a terminal in a wireless communication system is provided. The method includes receiving, from a first cell of a base station, cross carrier scheduling configuration including information indicating that a carrier indicator field (CIF) is included in downlink control information (DCI); receiving, from the first cell of the base station, the DCI for scheduling a physical downlink shared channel (PDSCH), the DCI including the CIF; if the CIF indicates that a resource assignment of the PDSCH is for the first cell, identifying whether a first offset value between a reception of the DCI and the PDSCH is less than a threshold; and in case that the first offset value is less than the threshold and the terminal supports default beam selection for the PDSCH, receiving, from the first cell of the base station, data on the PDSCH based on quasi co-located (QCL) parameters for a control resource set (CORESET) associated with a search space with a lowest CORESET identifier (ID) within an active bandwidth part (BWP) of the first cell in a latest slot monitored by the terminal.

    METHOD AND APPARATUS FOR MANAGING A BANDWIDTH PART

    公开(公告)号:US20240080854A1

    公开(公告)日:2024-03-07

    申请号:US18507757

    申请日:2023-11-13

    Abstract: A terminal for managing a bandwidth part in a wireless communication system is provided. The terminal includes a transceiver and at least one processor configured to receive, from a base station, a first radio resource control (RRC) message including a bandwidth part (BWP) configuration, receive, from the base station, downlink control information including a bitmap indicating whether each of at least one downlink (DL) BWP is activated as a first BWP or a second BWP, wherein the first BWP is configured with a non-dormant BWP in the first RRC message, and the second BWP is configured with a dormant BWP in the first RRC message, when a first bit of the bitmap is 0, determine an active DL BWP corresponding to the first bit as the second BWP, and when the first bit of the bitmap is 1, determine whether a current active DL BWP corresponding to the first bit is the second BWP, when the current active DL BWP is the second BWP, set the current active DL BWP to the first BWP, and when the current active DL BWP is not the second BWP, determine to maintain the current active DL BWP.

    METHOD AND APPARATUS FOR CHANGING UPLINK-DOWNLINK CONFIGURATION IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20230292304A1

    公开(公告)日:2023-09-14

    申请号:US18012060

    申请日:2021-06-23

    CPC classification number: H04W72/12 H04W72/23 H04W72/535

    Abstract: Disclosed are a method and apparatus for changing uplink-downlink configuration in a wireless communication system. The method may comprise the steps of transmitting, to user equipment, uplink-downlink configuration information indicating first uplink-downlink configuration, transmitting, to the user equipment, a change indicator indicating second uplink-downlink configuration, determining whether or not an uplink-downlink direction is changed within a specific frequency domain resource based on a change from the first uplink-downlink configuration to the second uplink-downlink configuration, and, based on the uplink-downlink direction being changed, communicating with the user equipment on the frequency domain resource, according to the second uplink-downlink configuration after a predetermined change delay time from transmission of the change indicator.

    METHOD AND DEVICE FOR TRANSMITTING AND RECEIVING SIGNAL IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20230217452A1

    公开(公告)日:2023-07-06

    申请号:US17928825

    申请日:2021-04-29

    CPC classification number: H04W72/23

    Abstract: The present disclosure relates to a method and device for transmitting and receiving a signal in a wireless communication system, and an operation method of a user equipment (UE) in the wireless communication system may include receiving, from a base station, configuration information related to carrier aggregation (CA), wherein the configuration information related to the CA includes information related to cross-carrier scheduling between a primary cell (PCell) and a secondary cell (SCell), performing configuration related to the CA, based on the configuration information related to the CA, monitoring a common search space (CSS) of the PCell on the PCell and monitoring a UE-specific search space (USS) of the SCell on the SCell, based on the performed configuration related to the CA, and receiving a physical downlink control channel (PDCCH), based on the monitoring.

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