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

    公开(公告)号:US12289263B2

    公开(公告)日:2025-04-29

    申请号:US17608332

    申请日:2020-05-04

    Abstract: A method for receiving the PTRS by a user equipment (UE) in a wireless communication system is disclosed, comprises the steps of: 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 i) the number of TCI states corresponding to the code point, ii) the number of CDM groups containing the DMRS port, or iii) the number of antenna ports for receiving the PTRS.

    Method for transmitting and receiving demodulation reference signal in wireless communication system and device therefor

    公开(公告)号:US12244529B2

    公开(公告)日:2025-03-04

    申请号:US17608329

    申请日:2020-05-04

    Abstract: A method for receiving a DM-RS by a user equipment (UE) in a wireless communication system is disclosed, compises 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 and apparatus for receiving downlink control information in wireless communication system

    公开(公告)号:US12022485B2

    公开(公告)日:2024-06-25

    申请号:US17311833

    申请日:2019-12-13

    Abstract: The present disclosure discloses operating methods of a user equipment and a base station in a wireless communication system, and a device supporting same. According to an embodiment applicable to the present disclosure, the user equipment may establish connection with the base station, on the basis of a synchronization signal/physical broadcast channel (SS/PBCH) block received from the base station. Subsequently, the user equipment may be configured, by the base station, with a transmission mode in which data generated from the same information is transmitted from a plurality of transmission reception points (TRPs), and may determine a size of a transmission block related to data provided from the plurality of TRPs on the basis of the transmission mode to obtain related data information. Accordingly, the base station and the user equipment can configure/determine the size of the transmission block related to the data without ambiguity therebetween.

    Method for transmitting demodulation reference signal for uplink data in wireless communication system, and device for same

    公开(公告)号:US11838234B2

    公开(公告)日:2023-12-05

    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 and apparatus for transmitting and receiving reference signal in wireless communication system

    公开(公告)号:US11677526B2

    公开(公告)日:2023-06-13

    申请号:US17343247

    申请日:2021-06-09

    CPC classification number: H04L5/0048 H04L5/0007

    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.

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