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 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 DATA IN MOBILE COMMUNICATION SYSTEM

    公开(公告)号:US20230254082A1

    公开(公告)日:2023-08-10

    申请号:US18134828

    申请日:2023-04-14

    CPC classification number: H04L5/0048 H04L5/0057 H04W72/23

    Abstract: Methods and apparatuses are provided in a wireless communication system. A plurality of configurations associated with channel state information (CSI) is received from a base station. Each configuration includes information on an aperiodic CSI-reference signal (CSI-RS) resource, and the aperiodic CSI-RS resource is associated with quasi co-location (QCL) information. Downlink control information (DCI) including information indicating a configuration among the plurality of configurations is received from the base station. A measurement is performed based on the aperiodic CSI-RS resource associated with the configuration indicated by the DCI. A CSI report is transmitted to the base station based on the measurement.

    METHOD AND DEVICE FOR TRANSMITTING DOWNLINK CONTROL INFORMATION FOR COOPERATIVE COMMUNICATION

    公开(公告)号:US20230126574A1

    公开(公告)日:2023-04-27

    申请号:US17796101

    申请日:2021-02-10

    Abstract: The present disclosure relates to a communication technique that merges IoT technology with a 5G communication system for supporting higher data transmission rates than 4G systems, and a system therefor. The present disclosure may be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail business, security and safety-related services, etc.) on the basis of 5G communication technology and IoT-related technology. The present disclosure discloses a method for improving the reliability of a control channel in a wireless communication system. Specifically, a method for a base station in a wireless communication system is characterized in that: control channel configuration information including a plurality of pieces of transmission configuration indicator (TCI) information is transmitted to a terminal; downlink control information for scheduling downlink data is transmitted to the terminal on a plurality of downlink control channels according to a plurality of TCIs; and the downlink data is transmitted to the terminal.

    METHOD AND DEVICE FOR REPETITIVE TRANSMISSION OF UPLINK CONTROL INFORMATION FOR NETWORK COOPERATIVE COMMUNICATION

    公开(公告)号:US20230087223A1

    公开(公告)日:2023-03-23

    申请号:US17798426

    申请日:2021-02-15

    Abstract: A user equipment (UE) performing repetitive transmission in a wireless communication system is configured to receive, from a base station, configuration information for repetitively transmitting a physical uplink control channel (PUCCH) to a plurality of transmission reception points (TRPs), receive, from the base station, an indication with respect to repetitive transmission of a first PUCCH through the plurality of TRPs, based on the configuration information for repetitively transmitting the PUCCH, identify that the repetitive transmission of the first PUCCH overlaps other uplink transmission, based on at least one of a repetitive transmission unit, a number of times of repetitive transmission, a number of TRPs, a type of uplink control information (UCI), a scheduling time point, and a number of activated transmission beams of each of the repetitive transmission of the first PUCCH and the other uplink transmission, determine which transmission between the repetitive transmission of the first PUCCH and the other uplink transmission is to be performed, and according to a result of the determining, perform the determined transmission between the repetitive transmission of the first PUCCH and the other uplink transmission, to the base station.

    METHOD AND APPARATUS FOR ADJUSTING MAXIMUM UPLINK TRANSMISSION POWER IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20230086214A1

    公开(公告)日:2023-03-23

    申请号:US18057865

    申请日:2022-11-22

    Abstract: The present 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 communication system comprises transmitting, to a base station, an uplink transmission subset restriction (UL-TxSR) request, based on a predetermined condition related to uplink transmission power; receiving, from the base station, a response corresponding to the UL-TxSR request; and transmitting, to the base station, an uplink signal based on the UL-TxSR.

    HIGH-SPEED DATA TRANSMISSION METHOD AND APPARATUS FOR OFDM-BASED SINGLE CARRIER SYSTEM

    公开(公告)号:US20220386296A1

    公开(公告)日:2022-12-01

    申请号:US17790861

    申请日:2021-01-05

    Abstract: The present disclosure relates to a communication technique for merging, with an IoT technology, a 5G communication system for supporting a higher data transmission rate than a 4G system, and a system therefor. The present disclosure can be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail businesses, security- and safety-related services, and the like) on the basis of a 5G communication technology and an IoT-related technology. A terminal according to an embodiment of the present disclosure can prepare signal processing before receiving a data signal by storing, in a memory, information pre-configured from a base station and reconstruct a signal by sequentially and rapidly processing time symbols in sample units, thereby performing fast signal processing on a single carrier.

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