METHOD FOR TRANSMITTING DEMODULATION REFERENCE SIGNAL FOR UPLINK DATA IN WIRELESS COMMUNICATION SYSTEM, AND DEVICE FOR SAME

    公开(公告)号:US20230171057A1

    公开(公告)日:2023-06-01

    申请号:US18096884

    申请日:2023-01-13

    CPC classification number: H04L5/0048

    Abstract: The present disclosure provides a method for transmitting a demodulation reference signal. Specifically, the method performed by the terminal comprising: receiving, from a base station, a radio resource control (RRC) signaling including control information representing that transform precoding for an uplink is enabled; generating a low peak to average power ratio (PAPR) sequence based on a length-6 sequence; generating a sequence used for the demodulation reference signal based on the low PAPR sequence; and transmitting, to the base station, the demodulation reference signal based on the sequence used for the demodulation reference signal, wherein the length-6 sequence has an 8-Phase Shift Keying (PSK) symbol as each element of the sequence.

    METHOD FOR TRANSMITTING SOUNDING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR

    公开(公告)号:US20230021451A1

    公开(公告)日:2023-01-26

    申请号:US17948028

    申请日:2022-09-19

    Abstract: The present specification provides a method for transmitting a sounding reference signal (SRS) in a wireless communication system. More particularly, a method for transmitting, by a terminal, a sounding reference signal (SRS) in a wireless communication system comprises: receiving, from a base station, information relating to a plurality of SRS resource sets, the SRS resource sets each comprising one or more SRS resources; and transmitting, to the base station, an SRS on the plurality of SRS resources based on the information, wherein, if the plurality of SRS resources are included in difference SRS resource sets, the SRS is transmitted simultaneously on the plurality of SRS resources.

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

    公开(公告)号:US20220224471A1

    公开(公告)日:2022-07-14

    申请号:US17608329

    申请日:2020-05-04

    Abstract: Disclosed are a method for receiving a demodulation reference signal (DM-RS) by a user equipment (UE) in a wireless communication system and a device therefor.
    Particularly, the method for receiving a DM-RS by a user equipment (UE) in a wireless communication system includes receiving activation information; transmitting feedback information on the activation information; receiving downlink control information (DCI) including i) a transmission configuration indication (TCI) field and ii) an antenna port field; and receiving the DM-RS based on the DCI, wherein the activation information includes information related to mapping of a code point of the TCI field and a TCI state, wherein based on the TCI field indicating a code point mapped with a plurality of TCI states, and the antenna port field indicating antenna ports of a plurality of code division multiplexing (CDM) groups, a first TCI state among the plurality of TCI states corresponds to a CDM group associated with a first antenna port based on an instruction order of the antenna ports.

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

    公开(公告)号:US20220217729A1

    公开(公告)日:2022-07-07

    申请号:US17608334

    申请日:2020-05-04

    Abstract: A method for receiving a data channel by a user equipment (UE) in a wireless communication system is disclosed, the method according to an embodiment of the present disclosure comprising: reporting, to a base station, channel state information (Channel State Information); receiving, from the base station, downlink control information (DCI) including first information and second information; and receiving, from the base station, the data channel scheduled based on the DCI, wherein the first information indicates a plurality of TCI states and the second information indicates a plurality of DMRS (Demodulation Reference Signal) ports determined based on the channel state information, wherein the plurality of DMRS ports are associated with a plurality of code division multiplexing (CDM) groups, wherein a first TCI state corresponds to a first CDM group of a first DMRS port based on an instruction order of the plurality of DMRS ports.

    METHOD FOR PERFORMING BEAM MANAGEMENT BY UE IN WIRELESS COMMUNICATION SYSTEM, AND UE AND BASE STATION SUPPORTING SAME

    公开(公告)号:US20220174685A1

    公开(公告)日:2022-06-02

    申请号:US17432651

    申请日:2020-01-28

    Abstract: The present disclosure provides a method for, in a wireless communication system comprising a UE and a base station including a plurality of cells, performing beam management by the UE via reporting a beam failure or partial beam failure related to one or more cells among a plurality of cells configured to the UE, and a UE and a base station which support the method. According to an embodiment applicable to the present disclosure, a UE can report a beam failure or partial beam failure on one or more cells to a base station, and the base station can quickly recognize the beam failure or partial beam failure on the one or more cells in response thereto.

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

    公开(公告)号:US20220140966A1

    公开(公告)日:2022-05-05

    申请号:US16956519

    申请日:2018-12-21

    Abstract: A method for transmitting and receiving a radio signal in a wireless communication system and a device therefor are disclosed. A method for receiving, by a base station, a sounding reference signal (SRS) in the wireless communication system includes transmitting, to a user equipment (UE), configuration information for transmission of the SRS; and receiving, from the UE, the SRS transmitted based on the configuration information. The configuration information includes group hopping information and sequence hopping information for sequence hopping of the SRS. A sequence length of the SRS is based on a product of a number of candidates of the group hopping information and a number of candidates of the sequence hopping information. The number of candidates of the group hopping information and the number of candidates of the sequence hopping information are configured based on a number of neighboring cells of the base station.

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