Method for transmitting and receiving HARQ information in wireless communication system, and device therefor

    公开(公告)号:US11973602B2

    公开(公告)日:2024-04-30

    申请号:US17748368

    申请日:2022-05-19

    CPC classification number: H04L1/1819 H04L5/0055 H04W72/0446 H04W72/23

    Abstract: A method for a terminal to transmit hybrid automatic repeat and request (HARQ) feedback information in a wireless communication system supporting coordinated multiple point (CoMP) transmission includes: receiving a first PDCCH and a second PDCCH from a first transmission node and a second transmission node, respectively; receiving, from the first transmission node and the second transmission node, a first PDSCH and a second PDSCH scheduled by the first PDCCH and the second PDCCH, respectively; determining HARQ-ACK codebook for the first PDSCH and the second PDSCH; and transmitting HARQ feedback information for the determined HARQ-ACK codebook. The first and second PDCCHs include specific HARQ feedback timing information used for the CoMP. When a reception occasion for the first PDSCH and a reception occasion for the second PDSCH overlap, the HARQ feedback information is transmitted on a slot corresponding to the value indicated by the specific HARQ feedback timing information.

    Method and apparatus for transmitting and receiving PDCCH in wireless communication system

    公开(公告)号:US11895650B2

    公开(公告)日:2024-02-06

    申请号:US17802452

    申请日:2021-03-09

    CPC classification number: H04W72/1273 H04W72/231

    Abstract: Disclosed are a method and apparatus for transmitting and receiving a physical downlink control channel (PDCCH) in a wireless communication system. A method for receiving a PDCCH, according to an embodiment of the present disclosure, may comprise the steps of: receiving, from a base station, configuration information related to a control resource set (CORESET); and receiving, from the base station, a PDCCH within the CORESET. The configuration information may include transmission control indicator (TCI) state information related to the CORESET, the TCI state information may include information about one or more reference signals which are in a quasi-co-location (QCL) relationship with one or more antenna ports of a demodulation reference signal (DMRS) of the PDCCH, and a plurality of TCI states may be configured for the CORESET.

    Method for transmitting and receiving channel state information in wireless communication system, and apparatus therefor

    公开(公告)号:US11888567B2

    公开(公告)日:2024-01-30

    申请号:US18137846

    申请日:2023-04-21

    CPC classification number: H04B7/0626 H04B7/063 H04B7/0639

    Abstract: A method by which a terminal reports channel state information (CSI) in a wireless communication system, according to an embodiment of the present specification, comprises the steps of: receiving configuration information related to reporting of CSI; receiving a channel state information-reference signal (CSI-RS); calculating the CSI on the basis of the CSI-RS; and reporting the CSI. The CSI comprises first information for selecting an antenna port related to the CSI-RS. The pre-set number of antenna ports are selected for each antenna port-related polarization from among antenna ports related to the CSI-RS, on the basis of the first information. The pre-set number of antenna ports are characterized in being selected on the basis of a combination of the number of the antenna ports related to the CSI-RS and the pre-set number.

    Method and apparatus for transmitting or receiving channel state information in wireless communication system

    公开(公告)号:US11864013B2

    公开(公告)日:2024-01-02

    申请号:US17069090

    申请日:2020-10-13

    CPC classification number: H04W24/10 H04W72/0446 H04W76/28

    Abstract: Provided are a method for transmitting and receiving channel state information (CSI) and an apparatus for the same. Specifically, the method includes receiving configuration information related to a CSI report, wherein the configuration information includes first information related with a time domain behavior of the CSI report, and based on the first information, one of (i) periodic, (ii) semi-persistent or (iii) aperiodic may be configured as a behavior of the CSI report in the time domain, receiving second information related with a time domain behavior of the CSI report, wherein the second information may be configured for a time duration including a plurality of specific units based on a specific unit in the time domain, receiving a reference signal for a CSI measurement, performing the CSI measurement based on the reference signal, and reporting the CSI in the time domain based on the first information and the second information.

    METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING UPLINK SIGNAL IN A WIRELESS COMMUNICATION

    公开(公告)号:US20230336306A1

    公开(公告)日:2023-10-19

    申请号:US18077627

    申请日:2022-12-08

    CPC classification number: H04L5/0051 H04L5/0094 H04L5/006 H04W72/1289

    Abstract: A method and an apparatus for transmitting and receiving a sounding reference signal (SRS) in a wireless communication system are disclosed. A method for transmitting the SRS by a terminal in a wireless communication system according to an embodiment of the present disclosure may comprise: receiving, from a base station, configuration information related to an SRS resource set for the SRS, wherein the SRS resource set includes at least one SRS resource; and transmitting, to the base station, the SRS based on the at least one SRS resource. The configuration information may include information on at least one reference resource, and based on the SRS resource set being configured with a specific usage and one reference resource being configured by the configuration information, the SRS may be transmitted based on a first spatial parameter different from a second spatial parameter corresponding to the one reference resource.

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