Method and device for performing beam scanning in wireless access system supporting millimeter wave

    公开(公告)号:US10659127B2

    公开(公告)日:2020-05-19

    申请号:US16099403

    申请日:2016-05-12

    Abstract: The present invention relates to a wireless access system supporting millimeter wave (mmWave), and provides a transmission/reception beam scanning method, a channel state information feedback method, and devices supporting the same. According to an embodiment of the present invention, a method for scanning a transmission/reception beam by a millimeter wave (mmWave) terminal in a wireless access system supporting mmWave may comprise the steps of: performing long term beam scanning in period N; transmitting feedback information including a first transmission beam identifier (Tx beam ID) acquired through the long term beam scanning to a mmWave base station; receiving an upper layer signal including reception beam scanning configuration information allocated for short term beam scanning; and performing the short term beam scanning in a reception beam scanning area on the basis of the reception beam scanning configuration information.

    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 for transmitting and receiving PDSCH in wireless communication system, and device for same

    公开(公告)号:US12137453B2

    公开(公告)日:2024-11-05

    申请号:US17765941

    申请日:2020-10-05

    Abstract: A method for transmitting and receiving a PDSCH in a wireless communication system, and a device for same. The method for a terminal to receive a PDSCH includes the steps of: receiving setting information; receiving, on the basis of the setting information, Downlink Control Information (DCI) for scheduling the PDSCH, wherein the DCI includes a frequency domain resource assignment field and a Transmission configuration indication (TCI) field; and receiving the PDSCH on frequency domain resource blocks assigned on the basis of the frequency domain resource assignment field, wherein the frequency density of the PTRS can be determined by the number of resource blocks associated with each TCI state.

    Method for transmitting and receiving downlink data in wireless communication system, and device for same

    公开(公告)号:US12035330B2

    公开(公告)日:2024-07-09

    申请号:US17862530

    申请日:2022-07-12

    CPC classification number: H04W72/23

    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 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.

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