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    METHOD FOR REPORTING CHANNEL STATE INFORMATION, USER EQUIPMENT, AND BASE STATION
    95.
    发明申请
    METHOD FOR REPORTING CHANNEL STATE INFORMATION, USER EQUIPMENT, AND BASE STATION 审中-公开

    公开(公告)号：US20180351616A1

    公开(公告)日：2018-12-06

    申请号：US16058636

    申请日：2018-08-08

    申请人： Huawei Technologies Co., Ltd.

    发明人： Jianguo WANG ,  Yongxing ZHOU ,  Jianghua LIU

    IPC分类号： H04B7/0456 ,  H04B7/06 ,  H04B7/0417

    CPC分类号： H04B7/0456 ,  H04B7/0417 ,  H04B7/0473 ,  H04B7/0626 ,  H04B7/0639

    摘要： Embodiments of the present invention provide a method includes: receiving a reference signal sent by a base station; selecting, based on the reference signal, a precoding matrix from a codebook, where a precoding matrix W included in the codebook is a product of three matrices being W1, Z, and W2, that is, w=w1zw2, where both W1 and Z are block diagonal matrices, W1=a formula (I), Z=a formula (II), each of W1 and Z includes at least one block matrix, that is, NB≥1, and each column of each block matrix Zi in the matrix Z has the following structure formula (III); and sending a precoding matrix indicator (PMI) to the base station, where the PMI corresponds to the selected precoding matrix, and is used by the base station to obtain the selected precoding matrix W according to the PMI.

    COMMUNICATION DEVICE AND METHODS THEREOF
    97.
    发明申请
    COMMUNICATION DEVICE AND METHODS THEREOF 审中-公开

    公开(公告)号：US20180337717A1

    公开(公告)日：2018-11-22

    申请号：US16040872

    申请日：2018-07-20

    申请人： Huawei Technologies Co., Ltd.

    发明人： Majid NASIRI KHORMUJI ,  Renaud-Alexandre PITAVAL

    IPC分类号： H04B7/0456 ,  H04B7/06 ,  H04L5/00

    CPC分类号： H04B7/0417 ,  H04B7/0421 ,  H04B7/061 ,  H04B7/0619 ,  H04B7/063 ,  H04B7/0639 ,  H04B7/065 ,  H04B7/0673

    摘要： The disclosure relates to a first communication device for a wireless communication system, the first communication device comprising: a processor, a cascade precoder including an outer precoder and an inner precoder, and a transceiver; wherein the processor is configured to determine the inner precoder; wherein the transceiver is configured to transmit a first pilot sequence to a second communication device; wherein the transceiver is configured to receive a first channel estimation from the second communication device; wherein the processor is configured to determine the outer precoder based on the first channel estimation; wherein the transceiver is configured to transmit at least one of a data sequence and a pilot sequence to the second communication device.

    METHOD FOR REPORTING CHANNEL STATE IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR
    99.
    发明申请
    METHOD FOR REPORTING CHANNEL STATE IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR 审中-公开

    公开(公告)号：US20180331742A1

    公开(公告)日：2018-11-15

    申请号：US15773097

    申请日：2016-10-31

    申请人： LG ELECTRONICS INC.

    发明人： Kunil Yum ,  Jonghyun Park ,  Kijun Kim

    IPC分类号： H04B7/06 ,  H04B7/08 ,  H04L27/26

    CPC分类号： H04B7/063 ,  H04B7/0417 ,  H04B7/0621 ,  H04B7/0626 ,  H04B7/0643

    摘要： A method for reporting an aperiodic channel condition in a wireless communication system, according to an embodiment of the present invention, is performed by a terminal. The method comprises the steps of: receiving, from a base station, setting for one or more channel state information (CSI) processes including a plurality of channel state information-reference signals (CSI-RS) resources, wherein precoding is applied to each of the plurality of CSI-RS resources; receiving an aperiodic CSI report request from the base station; and transmitting, to the base station, an aperiodic CSI for a CSI process indicated by the aperiodic CSI report request, wherein, if a certain time has not elapsed after a CSI-RS resource index for the CSI process indicated by the aperiodic CSI report request is reported, the transmitted aperiodic CSI may include a CSI-RS resource index for a CSI process which has not been updated.