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

    公开(公告)号:US11464030B2

    公开(公告)日:2022-10-04

    申请号:US17667016

    申请日:2022-02-08

    Abstract: A method of transmitting channel state information (CSI) in a wireless communication system includes: receiving, from a base station, configuration information related to CSI; receiving, from the base station, a CSI-reference signal (CSI-RS) on a plurality of CSI-RS resources; and transmitting, to the base station, first CSI based on the configuration information. The plurality of CSI-RS resources corresponding to the configuration information are configured with (i) one or more channel measurement resources (CMRs) configured to be used to derive CSI based on a single CMR and (ii) one or more CMR pairs configured to be used to derive CSI based on a single CMR pair, unless there is a specific configuration by the configuration information, based on the first CSI being CSI derived based on a single CMR, any CMR included in the one or more CMR pairs may be not used to derive the first CSI.

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

    公开(公告)号:US11451282B2

    公开(公告)日:2022-09-20

    申请号:US17669895

    申请日:2022-02-11

    Abstract: Disclosed herein are a method and a device for transmitting a message in an initial access procedure by a user equipment (UE) in a wireless communication system. According to the present disclosure, a UE may transmit to a base station capability information associated with transmission power of the UE and the information may include a subset including at least one transmit precoding matrix indicator (TPMI) supported by the UE. The UE may receive first control information for transmitting a message associated with an initial access and the control information may include a TPMI used for the UE to transmit the message. Thereafter, the UE may transmit to the base station the message by using transmission power determined based on the TPMI and the transmission power may be determined according to whether the TPMI is included in the at least one TPMI.

    Method for reporting aperiodic channel state information in wireless communication system and apparatus therefor

    公开(公告)号:US11382111B2

    公开(公告)日:2022-07-05

    申请号:US16763548

    申请日:2018-11-13

    Abstract: The present specification provides a method for reporting aperiodic channel state information (ACSI) in a wireless communication system. More specifically, the method, which is performed by a terminal, comprises the steps of: receiving, from a base station, downlink control information (DCI) including a reporting trigger for each of first ACSI and second ACSI and a reporting timing for each of the first ACSI and the second ACSI; and transmitting low-priority ACSI, which is determined among the first ACSI and the second ACSI on the basis of a predetermined rule, to the base station at a reporting time point determined on the basis of a delayed reporting timing.

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

    公开(公告)号:US11374798B2

    公开(公告)日:2022-06-28

    申请号:US16959962

    申请日:2019-01-07

    Abstract: Disclosed are a method for transmitting and receiving a sounding reference signal (SRS) in a wireless communication system, and an apparatus therefor. Specifically, a method for a terminal to transmit an SRS in a wireless communication system comprises: a step of receiving, from a base station, SRS configuration information, wherein the SRS configuration information includes SRS bandwidth configuration information related to an SRS hopping pattern; and a step of determining, on the basis of the SRS bandwidth configuration information, a first parameter indicating the entire bandwidth allocated to the SRS, a second parameter indicating a bandwidth for hopping units of the SRS, and a third parameter indicating the number of hopping units of the SRS, and transmitting the SRS to the base station by applying the SRS hopping pattern configured on the basis of the first parameter, the second parameter, and the third parameter, wherein the value of the third parameter may be configured in association with the number of symbols constituting the SRS hopping pattern.

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

    公开(公告)号:US11368257B2

    公开(公告)日:2022-06-21

    申请号:US17108565

    申请日:2020-12-01

    Abstract: The present specification relates to 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, the method comprising: a step for receiving a first PDCCH and a second PDCCH from a first transmission node and a second transmission node, respectively; a step for 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; a step for determining the type of HARQ-ACK codebook for the first PDSCH and the second PDSCH; and a step for transmitting HARQ feedback information for the determined HARQ-ACK codebook, wherein the first PDCCH and the second PDCCH include specific HARQ feedback timing information used for the CoMP, and 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.

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