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    ANTENNA SELECTION CODEBOOK FOR FULL DIMENSIONAL MIMO SYSTEMS
    2.
    发明申请
    ANTENNA SELECTION CODEBOOK FOR FULL DIMENSIONAL MIMO SYSTEMS 有权
    用于全尺寸MIMO系统的天线选择代码

    公开(公告)号：US20150215014A1

    公开(公告)日：2015-07-30

    申请号：US14486029

    申请日：2014-09-15

    申请人： Yuan Zhu ,  Xiaogang Chen ,  Fangze Tu ,  Qinghua Li ,  Hooman Shirani-Mehr

    发明人： Yuan Zhu ,  Xiaogang Chen ,  Fangze Tu ,  Qinghua Li ,  Hooman Shirani-Mehr

    IPC分类号： H04B7/04 ,  H04W72/04 ,  H04L25/02

    CPC分类号： H04L25/0248 ,  H04B7/0469 ,  H04B7/0486 ,  H04B7/063 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0665 ,  H04L25/0204 ,  H04L25/021 ,  H04L25/0224

    摘要： Embodiments of a system and method for beamforming in a Wireless Network are generally described herein. In some embodiments, an enhanced Node B (eNB) transmits to User Equipment (UE), from a plurality (Nc) of antenna ports of a plurality (Nt) of transmit antennas, a data signal where signal power is allocated in eigen beams, each of the Nt transmit antennas having antenna ports that are adjustable in elevation and in azimuth. The eNB also determines and transmits to the UE a Pc set of the largest principal eigen beams of the data signal and receives, as feedback from the UE, a precoding matrix that identifies the antenna port from which strongest energy in the data signal is detected at the UE. The eNB uses the precoding matrix for beamforming.

    摘要翻译： 本文中通常描述用于无线网络中的波束成形的系统和方法的实施例。 在一些实施例中，增强型节点B（eNB）从多个（Nt）发射天线的多个（Nc）天线端口向用户设备（UE）发送信号功率在本征波束中分配的数据信号， Nt个发射天线中的每一个具有可在仰角和方位上调节的天线端口。 eNB还确定并向UE发送数据信号的最大主要特征波束的Pc集合，并接收来自UE的反馈，该预编码矩阵识别从该数据信号中最强的能量被检测到的天线端口 UE。 eNB使用预编码矩阵进行波束成形。

    CSI-RS ANTENNA PORTS EXTENSION AND 3D CODEBOOK DESIGN
    3.
    发明申请
    CSI-RS ANTENNA PORTS EXTENSION AND 3D CODEBOOK DESIGN 有权
    CSI-RS天线端口扩展和3D代码设计

    公开(公告)号：US20150180684A1

    公开(公告)日：2015-06-25

    申请号：US14128338

    申请日：2013-09-27

    申请人： Xiaogang Chen ,  Yuan Zhu ,  Qinghua Li ,  Alexei V. Davydov ,  Hooman Shirani-Mehr

    发明人： Xiaogang Chen ,  Yuan Zhu ,  Qinghua Li ,  Alexei V. Davydov ,  Hooman Shirani-Mehr

    IPC分类号： H04L25/03 ,  H04B17/24 ,  H04B7/04

    CPC分类号： H04L25/03929 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0478 ,  H04B7/0617 ,  H04B17/24 ,  H04L5/0048

    摘要： A system and a method is disclosed for selecting at least one vertical precoding vector of a three-dimensional Multiple Input Multiple Output (3D-MIMO) configuration based on Channel State Information-Reference Signal (CSI-RS) information that is feedback from a wireless terminal device to an evolved Node B (eNB). The 3D-MIMO CSI-RS process is configured for a plurality of CSI-RS ports in which the plurality of CSI-RS ports that are grouped into a plurality of CSI-RS port groups and in which corresponds to the 3D arrangement of antennas. CSI configuration information for the different CSI-RS port groups can be a time-domain-based CSI-RS process, a frequency-domain-based CSI-RS process, a code-domain-based CSI-RS process, or a combination thereof. CSI-RS information is measured for each CSI-RS group and feedback for selection of the at least one vertical precoding vector.

    摘要翻译： 公开了一种用于基于来自无线电的反馈的信道状态信息参考信号（CSI-RS）信息来选择三维多输入多输出（3D-MIMO）配置的至少一个垂直预编码向量的系统和方法 终端设备到演进节点B（eNB）。 为多个CSI-RS端口配置3D-MIMO CSI-RS进程，其中分组为多个CSI-RS端口组并且其中对应于天线的3D布置的多个CSI-RS端口。 不同CSI-RS端口组的CSI配置信息可以是基于时域的CSI-RS进程，基于频域的CSI-RS进程，基于码域的CSI-RS进程或其组合 。 针对每个CSI-RS组测量CSI-RS信息和用于选择至少一个垂直预编码向量的反馈。

    Wireless communication via combined channel training and physical layer header signaling
    6.
    发明授权
    Wireless communication via combined channel training and physical layer header signaling 有权

    公开(公告)号：US10044421B2

    公开(公告)日：2018-08-07

    申请号：US14583253

    申请日：2014-12-26

    申请人： Qinghua Li ,  Xiaogang Chen ,  Huaning Niu ,  Yuan Zhu

    发明人： Qinghua Li ,  Xiaogang Chen ,  Huaning Niu ,  Yuan Zhu

    IPC分类号： H04B7/04 ,  H04B7/0452 ,  H04L29/06 ,  H04B7/06 ,  H04L5/00

    摘要： Embodiments herein relate to wireless communication using combined channel training and physical layer header (SIG) signaling. Devices that comply with the 802.11ax or High Efficiency WLAN (HEW) standard may generate and transmit packets that include such combined information. The combined information may be beamformed to a receiver device via an OFDM signal, which may be decoded by the receiver device to obtain subsequent data included in the signal. For example, initial training symbols associated with channel training subcarriers in the signal may be detected and used to perform a rough estimate of the channel. The rough estimate may thereafter be refined using data symbols detected from adjacent data subcarriers using the channel training symbols. In this way, data subcarriers may also be used to determine a channel response along with channel training subcarriers. Channel training information may be transmitted with data, such as user-specific information, in a single symbol.

    Technology for CSI feedback in a MIMO communication system
    10.
    发明授权
    Technology for CSI feedback in a MIMO communication system 有权
    MIMO通信系统中的CSI反馈技术

    公开(公告)号：US09319118B2

    公开(公告)日：2016-04-19

    申请号：US13994745

    申请日：2011-12-19

    申请人： Yuan Zhu ,  Xiaogang Chen ,  Qinghua Li

    发明人： Yuan Zhu ,  Xiaogang Chen ,  Qinghua Li

    IPC分类号： H04B7/04 ,  H04B7/06 ,  H04L1/00

    CPC分类号： H04B7/0452 ,  H04B7/0417 ,  H04B7/0456 ,  H04B7/0478 ,  H04B7/0486 ,  H04B7/0626 ,  H04B7/0639 ,  H04L1/0031

    摘要： Technology for channel state information (CSI) feedback in a multiple-input multiple-output (MIMO) communication system is disclosed. A method comprises receiving, at a mobile device, a dynamic channel state information (CSI) feedback switch signal from a transmission station that identifies a selected CSI feedback state for the mobile device. A process for selecting a precoding matrix indicator (PMI) and a rank indicator is identified based on the CSI feedback switch signal as either a process configured for MU-MIMO reception or single-user (SU) MIMO reception of a downlink signal at the mobile device.

    摘要翻译： 公开了一种多输入多输出（MIMO）通信系统中的信道状态信息（CSI）反馈技术。 一种方法包括在移动设备处接收来自识别移动设备的所选择的CSI反馈状态的传输站的动态信道状态信息（CSI）反馈切换信号。 基于CSI反馈切换信号，将用于选择预编码矩阵指示符（PMI）和秩指示符的过程识别为用于在移动站处的MU-MIMO接收或下行链路信号的单用户（SU）MIMO接收的处理 设备。