METHOD FOR TRANSMITTING AND RECEIVING DOWNLINK DATA IN WIRELESS COMMUNICATION SYSTEM, AND DEVICE FOR SAME

    公开(公告)号:US20220167389A1

    公开(公告)日:2022-05-26

    申请号:US17671110

    申请日:2022-02-14

    Abstract: A method for transmitting and receiving downlink data in a wireless communication system, and a device for same are disclosed. Specifically, the method includes the steps of: receiving setting information; receiving downlink control information (DCI); and receiving a plurality of transmission occasions of the same transport block based on the DCI, wherein a repetition scheme based on time division multiplexing (TDM) is set based on the setting information, the DCI includes a time domain resource assignment field, resource allocation in a time domain for a first transmission occasion may be determined based on the time domain resource assignment field of the DCI, and the resource allocation in the time domain for a second transmission occasion may be determined based on the resource allocation in the time domain for the first transmission occasion.

    METHOD FOR TRANSMITTING AND RECEIVING DATA IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR

    公开(公告)号:US20220077969A1

    公开(公告)日:2022-03-10

    申请号:US17413787

    申请日:2019-12-13

    Abstract: The present specification relates to a method for transmitting and receiving data by a base station in a wireless communication system. More specifically, a terminal receives configuration information for configuration of a control resource set (CORESET) from the base station. Thereafter, the terminal receives first downlink control information (DCI) and second DCI for generation of ACK/NACK by using a semi-static method on the basis of the configuration information. The terminal receives a first physical downlink shared channel (PDSCH) and a second PDSCH, and transmits first Ack/Nack for the first PDSCH and Ack/Nack for the second PDSCH, on a resource scheduled by the first DCI.

    METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20210297220A1

    公开(公告)日:2021-09-23

    申请号:US17343247

    申请日:2021-06-09

    Abstract: Disclosed herein are a method and apparatus for performing, by UE, decoding in a wireless communication system. According to the present invention, there may be a method and an apparatus for decoding data in which a demodulation reference signal (DMRS) configured by a base station according to a specific pattern is received from the base station through a DMRS symbol, the demodulation reference signal is transmitted on a specific antenna port and located on the same one or two time-axis symbols as at least one other demodulation reference signal transmitted on another antenna port, the specific pattern is determined according to characteristics of a frequency band in which the demodulation reference signal is transmitted, the demodulation reference signal is mapped to the one or two time-axis symbols using at least one of a first code division multiplexing (CDM) on a frequency axis or a second CDM on a time axis, and the data are decoded using the demodulation reference signal.

    METHOD FOR REPORTING CHANNEL STATE INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR THE SAME

    公开(公告)号:US20210135725A1

    公开(公告)日:2021-05-06

    申请号:US17144453

    申请日:2021-01-08

    Abstract: The present invention provides a method of reporting, by a UE, CSI in a wireless communication system, the method comprising: receiving, from a base station, a RRC signaling that comprises a plurality of reporting settings, wherein each reporting setting comprises a corresponding list of first values representing time offsets for transmitting a CSI report, forming a plurality of lists of first values; receiving, from the base station, DCI triggering the CSI report, wherein the DCI comprises an index value related to a time at which to transmit the CSI report on a PUSCH; determining, based on the DCI, a plurality of list entries; determining a second value that is largest among the plurality of list entries; and transmitting, to the base station, the CSI report on the PUSCH based on the second value.

    METHOD FOR TRANSCEIVING CHANNEL STATE INFORMATION AND APPARATUS THEREFOR IN MULTIPLE-ANTENNA WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20200280352A1

    公开(公告)日:2020-09-03

    申请号:US16810536

    申请日:2020-03-05

    Abstract: A method and an apparatus for transmitting and receiving channel state information in a multi-antenna wireless communication system are disclosed. Specifically, a method for reporting channel state information (CSI), by a User Equipment (UE), in a multi-antenna wireless communication system, the method comprising receiving, from a base station, configuration information for single CSI reporting in which a non-precoded CSI-RS based CSI reporting and a beamformed CSI-RS based CSI reporting are combined, reporting a first Precoding Matrix Indicator (PMI) and/or a first Rank Indicator (RI) derived based on a non-precoded CSI-RS to the base station, and reporting a Channel Quality Indicator (CQI), a second PMI, and a second RI based on a beamformed CSI-RS to the base station, wherein a value of the first RI is determined as only a value belonging to a previously determined set.

    METHOD AND APPARATUS FOR PERFORMING CSI REPORTING ON BASIS OF SUBBAND GROUP

    公开(公告)号:US20200235797A1

    公开(公告)日:2020-07-23

    申请号:US16652347

    申请日:2018-09-28

    Abstract: The present disclosure relates to a method for reporting channel state information (CSI) in a wireless communication system, which is performed by a terminal, including: receiving information on CSI reporting timing from a base station; receiving, from the base station, first control information, which is information on a frequency region to be subject to subband reporting and second control information, which is information on a maximum number of subbands to be subject to subband reporting; receiving, from the base station, information on a subband starting position for setting a subband group; setting an interval between subbands based on the first control information and the second control information; setting a subband group based on an interval between the starting position and the interval between the subbands; and performing CSI reporting of the set subband group, in which the subband group is a subband to be subject to CSI reporting in the subbands.

    METHOD FOR TRANSMITTING/RECEIVING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM, AND DEVICE THEREFOR

    公开(公告)号:US20200169968A1

    公开(公告)日:2020-05-28

    申请号:US16637899

    申请日:2018-08-08

    Abstract: Disclosed are a method and a device for transmitting/receiving a reference signal by a terminal in a wireless communication system. According to the present disclosure, the terminal receives control information from a base station and receives the reference signal based on the control information. The reference signal is transmitted on a specific antenna port and is positioned in the same symbol, on a time axis, and in the same subcarrier, on a frequency axis, as a different reference signal transmitted on at least one other antenna port.A method and a device may be provided, in which an Orthogonal Cover Code (OCC) is applied to the specific antenna port and at least one other antenna port and multiplexed through a Code Division Multiplexing (CDM) scheme and the OCC or a value acquired by shifting the OCC is applied to the subcarrier according to the index of the subcarrier.

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