Method and device for transmitting/receiving sounding reference signals in wireless communication system

    公开(公告)号:US11924136B2

    公开(公告)日:2024-03-05

    申请号:US17915063

    申请日:2021-04-02

    CPC classification number: H04L5/0051 H04L5/0062

    Abstract: Disclosed are a method and device for transmitting/receiving sounding reference signals in a wireless communication system. A method for transmitting sounding reference signals (SRS) according to one embodiment of the present disclosure may comprise the steps of: receiving, from a base station, setting information related to slot setting; receiving, from the base station, downlink control information (DCI) for triggering transmission of an SRS for an SRS resource set; and transmitting the SRS to the base station in the SRS resource set. One or more SRS transmission symbols for transmission of the SRS are determined, and in the one or more SRS transmission symbols, downlink scheduling may not be performed in one or more symbols that have been set as flexible symbols by the setting information.

    Method for transmitting and receiving phase tracking reference signal in wireless communication system, and apparatus therefor

    公开(公告)号:US11916830B2

    公开(公告)日:2024-02-27

    申请号:US18098862

    申请日:2023-01-19

    CPC classification number: H04L5/0048 H04L5/0094 H04W72/23

    Abstract: Disclosed are a method for transmitting and receiving a phase tracking reference signal (PTRS) in a wireless communication system, and an apparatus therefor. Specifically, a method for receiving the PTRS by a user equipment (UE) in a wireless communication system comprises receiving PTRS related configuration information; receiving downlink control information (DCI), wherein a code point corresponding to one or more transmission configuration indication (TCI) states is indicated on the basis of an antenna port field of the DCI; and receiving the PTRS through an antenna port corresponding to a specific DMRS port among the DMRS ports, wherein a number of antenna ports for receiving the PTRS may be determined on the basis of at least one of the maximum values of the number of TCI states corresponding to the code point, the number of CDM groups containing the DMRS port, or the number of antenna ports for receiving the PTRS.

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

    公开(公告)号:US11901993B1

    公开(公告)日:2024-02-13

    申请号:US18447686

    申请日:2023-08-10

    Abstract: Systems and techniques for transmitting channel state information (CSI) include: receiving configuration information related to the CSI from a base station, the configuration information including information on a CSI-RS resource set; receiving a CSI-reference signal (CSI-RS) from the base station; and transmitting the CSI to the base station based on the configuration information and the CSI-RS. The CSI-RS resource set includes M CSI-RS resource groups; in addition, N CSI-RS resource groups (N≤M) for reporting the CSI are determined from the M CSI-RS resource groups; the CSI includes N CSI sets generated based on a CSI-RS resource combination in the N CSI-RS resource groups. To generate an n-th (1≤n≤N) CSI set, a specific CSI-RS resource in an n-th (1≤n≤N) CSI-RS resource group is used for channel measurement; and a specific CSI-RS resource in the remaining CSI-RS groups other than the n-th CSI-RS resource group is used for interference measurement.

    METHOD AND APPARATUS FOR PERFORMING TRANSMISSION AND RECEPTION BASED ON SPATIAL PARAMETER IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20230354301A1

    公开(公告)日:2023-11-02

    申请号:US18103749

    申请日:2023-01-31

    CPC classification number: H04W72/1263 H04W72/23

    Abstract: A method and an apparatus for performing transmission and reception based on a spatial parameter in a wireless communication system are disclosed. A method performed by a user equipment (UE) in a wireless communication system according to an embodiment of the present disclosure may comprise: receiving configuration information for a unified transmission configuration indicator (TCI) scheme; receiving information indicating a plurality of TCI states based on the unified TCI scheme; and performing uplink transmission or downlink reception based on at least one TCI state among the plurality of TCI states. The at least one TCI state may be determined based on at least one of a pre-defined rule or indication information related to application of the plurality of TCI states.

    Method for transmitting and receiving uplink for plurality of TRPs and device for same

    公开(公告)号:US11800555B2

    公开(公告)日:2023-10-24

    申请号:US17968473

    申请日:2022-10-18

    CPC classification number: H04W72/563 H04B7/0639 H04W72/23 H04W72/51

    Abstract: The present invention relates to NR communication. A method for a user equipment provided with a plurality of panels or antennas to transmit an uplink signal to a plurality of transmission reception points (TRPs) comprises the steps of: receiving Downlink Control Indicators (DCI) including first to n-th field values; and transmitting identical uplink data to the plurality of TRPs by using the same number of antenna ports on the basis of the DCIs, wherein the first field value among the first to n-th field values may be determined on the basis of a Transmission Rank Indicator (TRI) and a Transmit Precoder Matrix Indicator (TPMI) corresponding to the selected first TRP among the plurality of TRPs, the second to n-th field values may be determined on the basis of second to n-th TPMIs respectively corresponding to the remaining second to n-th TRPs other than the selected first TRP, and the TRIs corresponding to the second to n-th field values may be determined on the basis of the TRI in the first field value.

    Method and apparatus for transmitting and receiving uplink signal in wireless communication system

    公开(公告)号:US11784768B2

    公开(公告)日:2023-10-10

    申请号:US17323904

    申请日:2021-05-18

    CPC classification number: H04L5/0048 H04W72/046

    Abstract: A method and an apparatus for transmitting and receiving an uplink signal in a wireless communication system. A method of transmitting an uplink signal includes receiving configuration information related to a sounding reference signal (SRS) from a base station; and transmitting the SRS to the base station in one or more SRS resources in a SRS resource set configured by the configuration information. Based on time domain bundling between the SRS and an uplink demodulation reference signal (DMRS) being indicated, the SRS and the uplink DMRS are transmitted on the same antenna port and/or with the same spatial domain transmission filter.

    METHOD FOR TRANSMITTING AND RECEIVING UPLINK FOR PLURALITY OF TRPS AND DEVICE FOR SAME

    公开(公告)号:US20230061346A1

    公开(公告)日:2023-03-02

    申请号:US17968473

    申请日:2022-10-18

    Abstract: The present invention relates to NR communication. A method for a user equipment provided with a plurality of panels or antennas to transmit an uplink signal to a plurality of transmission reception points (TRPs) comprises the steps of: receiving Downlink Control Indicators (DCI) including first to n-th field values; and transmitting identical uplink data to the plurality of TRPs by using the same number of antenna ports on the basis of the DCIs, wherein the first field value among the first to n-th field values may be determined on the basis of a Transmission Rank Indicator (TRI) and a Transmit Precoder Matrix Indicator (TPMI) corresponding to the selected first TRP among the plurality of TRPs, the second to n-th field values may be determined on the basis of second to n-th TPMIs respectively corresponding to the remaining second to n-th TRPs other than the selected first TRP, and the TRIs corresponding to the second to n-th field values may be determined on the basis of the TRI in the first field value.

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