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    DATA TRANSMISSION METHOD AND APPARATUS
    1.
    发明公开
    DATA TRANSMISSION METHOD AND APPARATUS 审中-公开

    公开(公告)号：EP4443806A3

    公开(公告)日：2025-01-01

    申请号：EP24178800.9

    申请日：2020-02-07

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： FAN, Bo ,  ZHANG, Xi ,  RONG, Lu

    IPC: H04B7/06 ,  H04W72/1273 ,  H04L5/00

    Abstract: This application provides a data transmission method and apparatus, to determine a TCI-state used for data transmission and correctly receive downlink data, thereby improving data transmission efficiency. The method includes: receiving a first physical downlink control channel PDCCH, where the first PDCCH is used to schedule a first physical downlink shared channel PDSCH; receiving a downlink signal by using a first transmission configuration indication state TCI-state; obtaining a time interval between the first PDCCH and the first PDSCH; and if the time interval is less than a preset threshold, obtaining the first PDSCH from the downlink signal.

    DATA TRANSMISSION METHOD AND APPARATUS
    2.
    发明公开
    DATA TRANSMISSION METHOD AND APPARATUS 审中-公开

    公开(公告)号：EP3836696A1

    公开(公告)日：2021-06-16

    申请号：EP20859665.0

    申请日：2020-02-07

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： FAN, Bo ,  ZHANG, Xi ,  RONG, Lu

    IPC: H04W72/04

    Abstract: This application provides a data transmission method and apparatus, to determine a TCI-state used for data transmission and correctly receive downlink data, thereby improving data transmission efficiency. The method includes: receiving a first physical downlink control channel PDCCH, where the first PDCCH is used to schedule a first physical downlink shared channel PDSCH; receiving a downlink signal by using a first transmission configuration indication state TCI-state; obtaining a time interval between the first PDCCH and the first PDSCH; and if the time interval is less than a preset threshold, obtaining the first PDSCH from the downlink signal.

    METHOD OF CORRECTING RECIPROCITY BETWEEN UES, AND DEVICE AND COMMUNICATION SYSTEM
    6.
    发明公开
    METHOD OF CORRECTING RECIPROCITY BETWEEN UES, AND DEVICE AND COMMUNICATION SYSTEM 审中-公开
    方法互惠之间的用户设备和设备及通信系统校正

    公开(公告)号：EP3110045A1

    公开(公告)日：2016-12-28

    申请号：EP14886145.3

    申请日：2014-03-18

    Applicant: Huawei Technologies Co., Ltd

    Inventor： ZHANG, Lei ,  RONG, Lu

    IPC: H04B17/00 ,  H04L5/14

    CPC classification number: H04L25/0224 ,  H04B17/00 ,  H04B17/14 ,  H04B17/21 ,  H04L5/0048 ,  H04L5/1469 ,  H04L25/0242

    Abstract: The present invention discloses an method for reciprocity calibration between UEs, an apparatus, and a communications system, which relate to the communications field, and can calibrate a reciprocity error between UEs, thereby ensuring performance of the communications system. The method includes: sending, by a communication device, a first reference signal to a first user equipment UE, so that the first UE estimates first channel information of a first channel between the first UE and the communication device according to the first reference signal; receiving the first channel information fed back by the first UE; receiving a second reference signal sent by the first UE; estimating second channel information of a second channel between the communication device and the first UE according to the second reference signal; and performing reciprocity calibration according to the first channel information and the second channel information.

    DMRS INDICATING AND RECEIVING METHODS, TRANSMIT END, AND RECEIVE END
    7.
    发明公开
    DMRS INDICATING AND RECEIVING METHODS, TRANSMIT END, AND RECEIVE END 审中-公开

    公开(公告)号：EP4145748A1

    公开(公告)日：2023-03-08

    申请号：EP22185386.4

    申请日：2018-07-19

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： REN, Xiang ,  LIU, Yong ,  RONG, Lu

    IPC: H04L5/00 ,  H04L27/26 ,  H04B7/0413

    Abstract: This application discloses a DMRS indicating method, a DMRS receiving method, and an apparatus. The method includes: determining, by a transmit end from a plurality of groups of demodulation reference signal DMRS configuration information, DMRS configuration information corresponding to a current DMRS transmission scheme, and obtaining DMRS indication information based on the DMRS configuration information, where each group of DMRS configuration information includes a plurality of pieces of DMRSs configuration information; and sending, by the transmit end, the DMRS indication information. The method and the apparatus provided in this application are implemented to match a plurality of scenarios in NR. This can satisfy a requirement for transmitting more layers of data, and can further reduce indication overheads.

    REFERENCE SIGNAL AND SEQUENCE CONFIGURATION METHOD AND APPARATUS
    8.
    发明公开
    REFERENCE SIGNAL AND SEQUENCE CONFIGURATION METHOD AND APPARATUS 审中-公开

    公开(公告)号：EP3852462A1

    公开(公告)日：2021-07-21

    申请号：EP19859340.2

    申请日：2019-08-22

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： LIU, Yong ,  GONG, Mingxin ,  QU, Bingyu ,  ZHOU, Yongxing ,  BI, Xiaoyan ,  RONG, Lu ,  HUANG, Su

    IPC: H04W72/04

    Abstract: This application discloses a reference signal configuration method and apparatus, and a sequence configuration method and apparatus, and relates to the field of communications technologies, to help improve overall system performance. The reference signal configuration method includes: generating at least two reference signals, where the at least two reference signals are reference signals corresponding to at least two antenna ports allocated by a network device to a same terminal, the at least two reference signals are reference signals of a same type, the at least two reference signals include a first reference signal and a second reference signal, and a sequence of the first reference signal is different from a sequence of the second reference signal; and sending the at least two reference signals.

    DATA TRANSMISSION METHOD AND DEVICE
    9.
    发明公开
    DATA TRANSMISSION METHOD AND DEVICE 审中-公开

    公开(公告)号：EP3595386A1

    公开(公告)日：2020-01-15

    申请号：EP18834352.9

    申请日：2018-05-07

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： RONG, Lu ,  LIU, Yong

    IPC: H04W72/04

    Abstract: This application discloses a data transmission method, including: determining, by a network device, control information, where the control information includes a first field, a second field, and at least one third field; the first field is used to indicate a quantity of to-be-transmitted transport blocks; the second field includes antenna port configuration information, and a length of the second field is related to the quantity of transport blocks; and the third field includes configuration information of the transport block, and a quantity of the third fields is related to the quantity of transport blocks; sending, by the network device, the control information to a terminal; and performing, by the network device, data transmission with the terminal based on the control information. According to the solution provided in this application, in the control information, the length of the second field used to indicate the antenna port configuration information and the quantity of the third fields used to indicate the configuration information of the transport block can be flexibly determined based on the quantity of to-be-transmitted transport blocks, thereby improving flexibility of setting a format of the control information and reducing signaling overheads of the control information in a plurality of scenarios.

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