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    METHOD AND DEVICE FOR ACQUIRING PRE-CODING INFORMATION
    1.
    发明公开
    METHOD AND DEVICE FOR ACQUIRING PRE-CODING INFORMATION 审中-公开
    用于获取预编码信息的方法和设备

    公开(公告)号：EP3249839A1

    公开(公告)日：2017-11-29

    申请号：EP15878357.1

    申请日：2015-01-20

    申请人： Huawei Technologies Co. Ltd. ,  Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

    发明人： WANG, Lei ,  KURRAS, Martin ,  THIELE, Lars ,  HAUSTEIN, Thomas ,  CHEN, Dageng ,  WU, Ye ,  QIAO, Deli

    IPC分类号： H04L1/06 ,  H04W24/10

    CPC分类号： H04L5/005 ,  H04B7/0482 ,  H04B7/0639 ,  H04L1/06 ,  H04L5/0023 ,  H04L5/0051 ,  H04L27/261 ,  H04W24/10

    摘要： Embodiments of the present invention provide a precoding information obtaining method and a device. The method includes: separately precoding, by a network device by using N sub-codebooks, a pilot group including K pilots to obtain N precoded pilot groups, where the sub-codebooks are subsets of a precoding codebook, the precoding codebook includes M precoding vectors, each sub-codebook includes K precoding vectors; sending, by the network device, a precoded pilot group to a terminal device in each of W RB groups; and receiving, by the network device, precoding information fed back by the terminal device for any one of W precoded pilot groups. According to the precoding information obtaining method and the device, the network device divides a precoding codebook into multiple sub-codebooks, and a quantity of precoding vectors in each sub-codebook is relatively small. Therefore, a quantity of pilot signals sent by the network device in each RB group is reduced, and pilot overheads in each RB group are reduced.

    摘要翻译： 本发明实施例提供了一种预编码信息获取方法和装置。 该方法包括：网络设备使用N个子码本对包含K个导频的导频组进行单独预编码以获得N个预编码导频组，其中，所述子码本为预编码码本的子集，所述预编码码本包括M个预编码矢量 ，每个子码本包括K个预编码向量; 所述网络设备将预编码的导频组发送给每个W RB组中的终端设备; 所述网络设备接收所述终端设备反馈的W个预编码导频组中的任意一个的预编码信息。 根据预编码信息获取方法和设备，网络设备将预编码码本划分为多个子码本，每个子码本的预编码向量数量较小。 因此减少了每个RB组中的网络设备发送的导频信号的数量，减少了每个RB组中的导频开销。

    APPARATUS, SYSTEM AND METHOD FOR IMPROVING POSITION ESTIMATION
    4.
    发明公开
    APPARATUS, SYSTEM AND METHOD FOR IMPROVING POSITION ESTIMATION 审中-公开

    公开(公告)号：EP4276488A3

    公开(公告)日：2024-01-31

    申请号：EP23200001.8

    申请日：2018-06-05

    申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

    发明人： KURRAS, Martin ,  THIELE, Lars ,  WIRTH, Thomas ,  GROßMANN, Marcus

    IPC分类号： H04W16/28 ,  G01S5/12 ,  H04B7/06 ,  H04B7/08 ,  H04W64/00

    摘要： A mobile device for a wireless communication network is disclosed, wherein the wireless communication network includes one or more base stations, the mobile device comprising: an antenna; and a transceiver, and a signal processor, wherein the transceiver is configured to transmit a first signal via the antenna, the first signal comprising a unique identification of the mobile device and requesting a network entity of the wireless communication network to transmit to the mobile device a direction into which at least one base station is located with respect to the mobile device together with location information about a location of the base station, and following the transmitting of the first signal, receive a second signal via the antenna, the second signal comprising the direction into which the at least one base station is located and the location information about the location of the base station, and wherein the signal processor is configured to estimate a position of the mobile device using the direction and the location information included in the second signal.

    APPARATUS, SYSTEM AND METHOD FOR IMPROVING POSITION ESTIMATION
    6.
    发明公开
    APPARATUS, SYSTEM AND METHOD FOR IMPROVING POSITION ESTIMATION 审中-公开

    公开(公告)号：EP4276488A2

    公开(公告)日：2023-11-15

    申请号：EP23200001.8

    申请日：2018-06-05

    申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

    发明人： KURRAS, Martin ,  THIELE, Lars ,  WIRTH, Thomas ,  GROßMANN, Marcus

    IPC分类号： G01S5/12

    摘要： A mobile device for a wireless communication network is disclosed, wherein the wireless communication network includes one or more base stations, the mobile device comprising: an antenna; and a transceiver, and a signal processor, wherein the transceiver is configured to transmit a first signal via the antenna, the first signal comprising a unique identification of the mobile device and requesting a network entity of the wireless communication network to transmit to the mobile device a direction into which at least one base station is located with respect to the mobile device together with location information about a location of the base station, and following the transmitting of the first signal, receive a second signal via the antenna, the second signal comprising the direction into which the at least one base station is located and the location information about the location of the base station, and wherein the signal processor is configured to estimate a position of the mobile device using the direction and the location information included in the second signal.