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    Channel Information Transmission Apparatus and Method, and System
    151.
    发明申请
    Channel Information Transmission Apparatus and Method, and System 审中-公开

    公开(公告)号：US20190158247A1

    公开(公告)日：2019-05-23

    申请号：US16261000

    申请日：2019-01-29

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Di Zhang ,  Kunpeng Liu

    IPC: H04L5/00 ,  H04L25/02 ,  H04H20/74 ,  H04B7/06 ,  H04B7/024 ,  H04B7/0452

    Abstract: A channel information transmission apparatus and method, and a system are disclosed to improve channel information feedback precision. A first device includes: a receiving module, configured to receive a reference signal from a second device; a processing module, configured to obtain a precoding matrix based on the reference signal, and generate first channel information and second channel information that are used to indicate the precoding matrix; and a sending module, configured to send the first channel information and the second channel information to the second device.

    Training beam transmission method, apparatus, and system
    152.
    发明授权
    Training beam transmission method, apparatus, and system 有权

    公开(公告)号：US10270509B2

    公开(公告)日：2019-04-23

    申请号：US15878406

    申请日：2018-01-23

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Kunpeng Liu ,  Huang Huang

    IPC: H04B7/06 ,  H04B7/04

    Abstract: The present invention provides a training beam transmission method, an apparatus, and a system. The training beam sending method includes: determining, by a transmit end, a training beam set to be sent to a receive end; sending, by the transmit end to the receive end, indication information indicating a combination vector of the training beam set; and sequentially sending, by the transmit end, training beams in the training beam set to the receive end. According to the training beam transmission method, the apparatus, and the system that are provided in the present invention, overheads required for sending a training beam can be reduced.

    Demodulation reference signal processing method, base station and user equipment
    154.
    发明授权
    Demodulation reference signal processing method, base station and user equipment 有权

    公开(公告)号：US10158471B2

    公开(公告)日：2018-12-18

    申请号：US14448187

    申请日：2014-07-31

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Kunpeng Liu ,  Jianghua Liu

    IPC: H04W4/00 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04L25/02

    Abstract: The embodiments of the present invention provide a demodulation reference signal processing method, a base station and a user equipment. A processing method includes: generating, by a base station, a DMRS corresponding to an E-PDCCH by using information that is available before a UE receives the E-PDCCH sent by the base station; and mapping, by the base station, the DMRS onto a time-and-frequency resource corresponding to a downlink control channel region and used for transmitting a reference signal, and sending the DMRS to the UE. In the technical solutions of the embodiments of the present invention, the base station and the UE no longer use an SCID for generating the DMRS, which solves the problem that the UE cannot obtain the SCID before receiving the E-PDCCH and cannot generate the DMRS, and further, cannot demodulate the E-PDCCH, and enables demodulation of the E-PDCCH.

    Methods and apparatuses for receiving and sending control channel
    155.
    发明授权
    Methods and apparatuses for receiving and sending control channel 有权

    公开(公告)号：US10148403B2

    公开(公告)日：2018-12-04

    申请号：US15245974

    申请日：2016-08-24

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Kunpeng Liu ,  Jianghua Liu

    IPC: H04L5/00 ,  H04W72/12 ,  H04W48/12 ,  H04L1/00

    Abstract: Embodiments of the present invention disclose methods and apparatuses for receiving and sending a control channel, and are applicable to the field of communications technologies. In the embodiments of the present invention, a base station carries scheduling information of a user equipment of an R11 system in both the PDCCH region and the E-PDCCH region of a downlink subframe. In this way, the user equipment needs to detect the control channel within the PDCCH region and the E-PDCCH region, so that resources of the two regions are available to the user equipment of the R11 system. Moreover, the user equipment detects only the control channel of the first type in the PDCCH region, and detects control channels of the other type in the E-PDCCH region. The method in the embodiments of the present invention does not increase the number of control channel detections.

    Enhanced physical downlink control channel transmission method and apparatus
    156.
    发明授权
    Enhanced physical downlink control channel transmission method and apparatus 有权

    公开(公告)号：US10129863B2

    公开(公告)日：2018-11-13

    申请号：US15494330

    申请日：2017-04-21

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Kunpeng Liu ,  Chi Gao ,  Jianghua Liu ,  Jianqin Liu

    IPC: H04W72/04 ,  H04L5/00 ,  H04W88/02

    Abstract: This application provides an enhanced physical downlink control channel transmission method and apparatus. The method includes: in a physical resource block set, separately arranging first resource groups in each physical resource block pair PRB pair, where the first resource groups are enhanced resource element groups eREGs or REGs, and the physical resource block set includes at least one of the physical resource block pairs; numbering second resource groups according to a correspondence between the first resource groups and the second resource groups in the physical resource block set, where the second resource groups are control channel element eCCE groups or control channel candidates; determining numbers of the second resource groups for transmitting an E-PDCCH; and mapping, according to the determined numbers, the E-PDCCH to the corresponding first resource groups for transmission. The technical solution of this application resolves an E-PDCCH transmission problem.

    CHANNEL STATE INFORMATION CSI MEASUREMENT AND FEEDBACK METHOD AND APPARATUS
    158.
    发明申请
    CHANNEL STATE INFORMATION CSI MEASUREMENT AND FEEDBACK METHOD AND APPARATUS 审中-公开

    公开(公告)号：US20180254817A1

    公开(公告)日：2018-09-06

    申请号：US15972976

    申请日：2018-05-07

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Kunpeng Liu

    IPC: H04B7/06 ,  H04L5/00

    Abstract: A channel state information (CSI) feedback method is provided. A receive end receives CSI process configuration information. The CSI process configuration information includes at least one CSI process, and a first CSI process in the at least one CSI process is associated with K reference signal resources and M interference measurement resources. For the first CSI process, the receive end obtains a target reference signal resource based on the K reference signal resources, obtains a target interference measurement resource based on the M interference measurement resources, and obtains CSI based on the target reference signal resource and the target interference measurement resource. The receive end sends the CSI. The CSI includes a target index, and the target index is used to represent the target reference signal resource and/or the target interference measurement resource. In this way, CSI feedback flexibility is improved.

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